Tony Petrarca

Saturday Red Sox Parade

November 1st, 2013 at 3:45 pm by under General Talk, Tony's Pinpoint Weather Blog

Good Evening….

Wow…already November and Todays high temperatures reached 70 degrees!  What’s better than that?…How about a Red Sox World Series Parade. It kicks off Saturday at 10am….click here for details.  Weather looks good in Boston with dry and pleasant tempertures, light breezes. Saturday is the perefect time for this celebration since Sunday looks windy and much colder.  Enjoy the day and parade !!

–Chief Meteorologist Tony R Petrarca..

sox rally

 


Halloween Forecast And Friday Storm.

October 30th, 2013 at 6:47 pm by under Tony's Pinpoint Weather Blog

Good Evening….

The good news with Halloween evening, the temperatures will be very mild…around 55-60  between 5 and 9pm.  There is still the  chance for some passing showers…however it does not look widespread or very heavy.  The weather theme  is no “washout” despite the shower risk.

Winds will continue to increase later Thursday Night bringing in the mild temperartures. This is in advance of a strong storm that will pass thru the Great Lakes on Friday. For us  locally it means strong southwest gales Friday (40-45mph) along with widespread rain showers.   A High Wind Advisory “may” be issued Friday..stay tuned for updates.

Chief Meteorologist Tony Petrarca

hallloween

 


Orionid Meteor Shower Late Tonight…

October 21st, 2013 at 6:23 pm by under Tony's Pinpoint Weather Blog

Good Evening From Chief meteorologist Tony Petrarca…

The annual Orionid meteor shower for late Tonight (peaks during pre-dawn hours 5am). Skies will average mostly clear, however moon light will make some of the more faint shooting stars more difficult to see at times.  Click here to see Orionid Update that aired on our newscast this evebing

The following is from stardate.org

The gibbous Moon, which is about 90 percent full tonight, rises by mid-evening and soars high across the sky during the night. Its light will overpower all but the brightest of the meteors.

 

Name Date of Peak Moon
Quadrantids Night of January 2 Sets shortly before dawn
Lyrids Night of April 21 In view most of the night
Eta Aquarids Nights of May 4/5 Early morning crescent
Perseids Nights of August 11/12 Sets after midnight
Orionids Night of October 21 In view most of the night
Leonids Night of November 16 Full
Geminids Nights of December 12, 13 In view most of the night

NOTES These are approximate times for the Lower 48 states; actual shower times can vary. Bright moonlight makes it difficult to see all but the brightest meteors.

What is a meteor shower?

A meteor shower is a spike in the number of meteors or “shooting stars” that streak through the night sky.

Most meteor showers are spawned by comets. As a comet orbits the Sun it sheds an icy, dusty debris stream along its orbit. If Earth travels through this stream, we will see a meteor shower. Although the meteors can appear anywhere in the sky, if you trace their paths, the meteors in each shower appear to “rain” into the sky from the same region.

Meteor showers are named for the constellation that coincides with this region in the sky, a spot known as the radiant. For instance, the radiant for the Leonid meteor shower is in the constellation Leo. The Perseid meteor shower is so named because meteors appear to fall from a point in the constellation Perseus. Tonights Orionid shower are from fragments of Haleys Comet

What are shooting stars?

“Shooting stars” and “falling stars” are both names that describe meteors — streaks of light across the night sky caused by small bits of interplanetary rock and debris called meteoroids vaporizing high in Earth’s upper atmosphere. Traveling at tens of thousands of miles an hour, meteoroids quickly ignite from the searing friction with the atmosphere, 30 to 80 miles above the ground. Almost all are destroyed in this process; the rare few that survive and hit the ground are known as meteorites.

When a meteor appears, it seems to “shoot” quickly across the sky, and its small size and intense brightness might make you think it is a star. If you’re lucky enough to spot a meteorite (a meteor that makes it all the way to the ground), and see where it hits, it’s easy to think you just saw a star “fall.”

How can I best view a meteor shower?

Get away from the glow of city lights and toward the constellation from which the meteors will appear to radiate.

After you’ve escaped the city glow, find a dark, secluded spot where oncoming car headlights will not periodically ruin your sensitive night vision. Look for state or city parks or other safe, dark sites.

Once you have settled at your observing spot, lie back or position yourself so the horizon appears at the edge of your peripheral vision, with the stars and sky filling your field of view. Meteors will instantly grab your attention as they streak by.

 

 


Foliage This Weekend

October 18th, 2013 at 6:53 pm by under Tony's Pinpoint Weather Blog

Good Evening From Chief Meteorologist Tony Petrarca….

Here is the latest Foliage report. I just got back from North Conway New Hampshire. The color was nice there, but showing signs of being just past  peak….infact the drive along the Kangamangus highway had leaves already dropped on 50% off the trees. Bottom line, the best color continues to move south into our area next few weeks.  I drove thru Foster And Clayville this morning in the northwest part of state and the color was very nice.  Send us your photos at reportit@wpri.com

Foliage new

 

 

 

 

 

 

 

 

 

vv


Latest On Tropical Storm Karen…

October 3rd, 2013 at 11:50 pm by under Tony's Pinpoint Weather Blog

From Chief Meteorologist Tony R Petrarca…..(updated 12:10am Friday)

Latest forecast has Karen approaching the Gulf coast (Near New Orleans) this weekend as a strong tropical storm and not a hurricane. However, winds may gust to hurricne force. There are a number of factors  in the atmosphere that can make a storm get stronger or weaker. Even though tropical storms and hurricane have strong winds “within” them, they do like to be in an enviorment with very strong winds “surrounding”  them. This is called “wind shear“. Wind shear will  tend to disrupt a storms symetrical structure. Right now, Karen is being influenced by some shear. Imagine it this way (bear with me on this strange comparison).  Let say you are in a car moving at 80 mph. Your passenger is holding a big stick of cotton candy (don’t laugh, just go with me on this).  Now this stick of cotton candy is the hurricane….now open the window at 80 mph, and place that cotton candy stick outside….what happens….the pile of candy gets shreaded and torn apart….that is what wind shear can do to a hurricane. 

Also tropical systems need to be in an enviorment that is very humid.  Dry air will disrupt the formation of  thunderstorms and thus rising air. At this time, Karen has some dry air being ingested…What does all of this mean?….Karen will still be a disruptive storm, but its ability for rapid development into a major hurricane is unlikely…stay tuned…some of the remnant moisture from Karen may move into New England Monday and Tuesday of next week with some rain

 

025909W5_NL_sm


Watching The Tropics……Karen ???

October 2nd, 2013 at 6:41 pm by under Tony's Pinpoint Weather Blog

Good Evening From Chief Meteorologist Tony Petrarca…

Watching an organized area of thunderstorms in the Caribbean which will move into the Gulf Of Mexico.  The system has the potential to be the next named tropical storm….Karen.  Residents along the upper Gulf coast will need to monitor. Infact, if the system does develop, there is a chance that some of the remnant moisture could give our area some rain by early next week.

Below is the latest satellite photo showing moisture in the northwest Caribbean…

gulf storm

 

 We use various computer models to predict tropical systems….the map below represents various computer tracks over the next several days….there is a large “agreement” have a possible landfall somewhere between New Orleans and the Florida Panhandle….from there the remnant moisture/rain may try to move into New England next week…

 AL97_current

 Model Data Courtesy Of  WeatherBell

 

 

 

 

 

 


Watching Storm Potential Monday

September 27th, 2013 at 4:00 pm by under Tony's Pinpoint Weather Blog

Good Afternoon From Chief Meteorologist Tony Petrarca…..

 All week we have been talking about a potential ocean storm for the Monday time frame. It still looks like a significant storm will form over the ocean. Up until a few days ago, the storm was expected to be far enough offshore to spare us any rain or wind. We are now seeing indications of this system tracking a bit closer. As a result, some rain and wind is  back in the forecast for Monday, the magnitude of both will be determined next few days as we analyze more data….. so stay tuned for updates.

monday storm

 

Forecast map below is from one of our more reliable high resolution models called the “RPM”  It indicates a stronger storm closer to the coast by Monday morning….infact it even hints the storm may take on “tropical characteristics”. We can sometimes get what is known as a “hybrid” storm or “sub-tropical storm”  In other words, structure-wise, the storm has hints of warm air near its center, like a tropical storm. Bottom line, the storm needs to be watched as far as the magnitude of any potential rain and wind. Stay tuned for updates…in the meantime, the weekend looks nice……..Tony Petrarca

rpm2

 

 RPM Model Valid 10am Monday

 

 


Worst Natural Disaster In Southern New England History !

September 20th, 2013 at 11:48 pm by under General Talk, Tony's Pinpoint Weather Blog

1938 hurricane

 

 

 

 

 

 

 

 

 

 

 

 

 City Hall Downtown Providence As Massive Storm Surge Sweeps Thru.

 

From Chief Meteorologist Tony Petrarca…

On Sept 21st 1938 Southern New Englanders woke up to a tranquil day.  Hard to imagine that later that afternoon one of the worst hurricanes to strike the United States was heading our way…and without warning.  Meteorologists back then knew about offshore hurricane, but with the lack of Today’s technology, the storm was not forecasted to hit, but rather stay offshore. The net result would be millions of dollars in damage, and hundreds of lives lost in Long Island and New England..

On this 75th Anniversary The National Weather Service Taunton has put togther a very impressive look back at this historic storm.

We share this web link with you……Click here: 1938 Hurricane


Autumn Chill Late Tonight, Dawn Tuesday

September 16th, 2013 at 6:42 pm by under Tony's Pinpoint Weather Blog

Good Evening From Chief Meteorologist Tony Petrarca…..

Cold front that gave us some showers this morning is now offshore. Behind this front, much cooler drier air will filter in next 24-36 hours. Low temperatures around dawn Tuesday will range from the upper 30s in northwest RI, to the upper 40s along the shore… afternoon highs Tuesday with lots of sunshine only 60-65, but overall a nice early Autumn Day

 

low temps

 

 Tuesday Afternoon Day Planner….Blue Skies But On The Cool Side……..

tuesday clock

 

 

 

 

 

 


Strong Cold Front To Bring Big Changes…

September 12th, 2013 at 8:53 pm by under Tony's Pinpoint Weather Blog

Good Evening from Chief Meteorologist Tony Petrarca….

Strong cold front approaching this evening and overnight will bring a round of heavy showers and thunderstorms. The blue line on the map below is the front, the leading edge of much cooler and drier air. Some storms after 10pm Tonight will be locally strong with downpours, gusty winds and frequent lightning..

cold front 1

 

 

 

 

 

 

 

 

 It looks like this cold front will slow down by Friday morning as low pressure forms along it just offshore….that combined with a weather disturbance in the upper levels of the atmosphere will keep Friday unsettled with showers and thunderstorms at times…

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cold front2

 

 

 

 

 

 

 

By Saturday the cold front is well offshore with breezy dry. much cooler air moving in. Skies will average partly cloudy duriing the afternoon with a real feel of Autumn in the air

saturday fropa

 

 

 


Humberto And Gabrielle Update…

September 11th, 2013 at 5:11 pm by under Tony's Pinpoint Weather Blog

Good Evenign From Chief Meteorologist Tony Petrarca…..

Tropical Storm Gabrielle Weakens…..It Will Race Away Into The Canadian Maratimes And Away From New England Next Few Days

gab2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hurricane Humberto Increases To 85 MPH…..Still Far Away In Eastern Atlantic.  Will Weaken To Tropical Storm As It Tracks Westward Into The Central Atlantic Early Next Week….Will Need To Watch Later Next Week??

humb2

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Tropics Are Active….

September 10th, 2013 at 5:55 pm by under Tony's Pinpoint Weather Blog

Good Evening From Chief Meteorologist  Tony Petrarca… We are now entering the most active part of the hurricane season. I am tracking two storms. Both are not  threat to the United States. Gabrielle will turn out to sea, well away from New England. Meanwhile Humberto is expected to become the seasons first hurricane, BUT  is very far away in the eastern Atlantic.  Any impact on the East Coast (if at all) is well over a week away….

———————————————————————————————————————————

Tropical Storm Gabrielle Heads For Bermuda With Winds Of 60mph.

…WIND INCREASING ON BERMUDA AS STRENGTHENING GABRIELLE
APPROACHES…

LOCATION…31.5N 64.9W
ABOUT 55 MI…90 KM S OF BERMUDA
MAXIMUM SUSTAINED WINDS…60 MPH…95 KM/H
PRESENT MOVEMENT…N OR 360 DEGREES AT 10 MPH…17 KM/H
MINIMUM CENTRAL PRESSURE…1004 MB…29.65 INCHES

A TROPICAL STORM WARNING IS IN EFFECT FOR.
 BERMUDA

Gabby

 

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Humberto Nearing Hurricane Strength….But It Is Still Very Far Away In The Eastern Atlantic

RIGHT NOW…
———————————————-
LOCATION…15.0N 28.1W
ABOUT 245 MI…400 KM W OF THE SOUTHERNMOST CAPE VERDE ISLANDS
MAXIMUM SUSTAINED WINDS…70 MPH…110 KM/H
PRESENT MOVEMENT…NW OR 310 DEGREES AT 8 MPH…13 KM/H
MINIMUM CENTRAL PRESSURE…993 MB…29.32 INCHES

humberto

 

 

 

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Rocket Launch Visible Tonight !

September 6th, 2013 at 3:27 pm by under General Talk, Tony's Pinpoint Weather Blog

 

Good Evening From Chief Meteorologist Tony Petrarca….Skies Will Clear Tonight For A NASA Rocket Launch!

****look in the southern sky….it will be moving eastward heading over the Atlantic ocean****

The following article is from our news partners at the  Providence Journal

PROVIDENCE, R.I — Rhode Islanders may get a bird’s eye view of a NASA rocket launch from Wallops Island, Va., late Friday.

The Lunar Atmosphere and Dust Environment Explorer, or LADEE, is scheduled to be launched at 11:27 p.m.

NASA said in a news release that the launch will be visible, weather permitting, as far north as Maine. Mostly clear skies are forecast for Rhode Island  Friday evening.

LADEE, pronounced laddie, will be carried into Earth orbit by a Minotaur V rocket.

After launch, the Minotaur V will rise over the horizon heading east out over the Atlantic Ocean, NASA said. It might seem that the rocket dips back to Earth as it moves farther away from the observer — just as a ship appears to sink as it moves out to sea — but actually the rocket is going higher, faster and farther from populated areas. Four of the Minotaur’s five rocket stages will drop off and break up far out over the ocean. The fifth stage, along with LADEE, will be inserted in high Earth orbit.

LADEE will use its own engines to continue on to the moon, where it will begin a 100 day mission to gather detailed information about the thin lunar atmosphere, conditions near the surface and environmental influences on lunar dust.


Microbursts…

September 4th, 2013 at 9:47 pm by under Tony's Pinpoint Weather Blog

Good Evening From Chief Meteorologist Tony Petrarca..

Here is a brief follow up on the previous detailed blog regarding yesterday’s damaging thunderstorm winds… Tuesday’s  thunderstorms were extending 30,000 ft up  in the atmosphere!!

 Intially a tremendous amount of water droplets (rain) and small hail were suspended high above inside the thunderstorm cloud. Eventually the water and ice falls to the ground. This process drags cool air and high winds from above, and “pulls”  it  to the bottom of the cloud and then down to the ground.  The process of the hail and rain water pulling or “dragging” the  air from the top of this 30,000 foot cloud, down to the ground is called “precipitation drag”  This dragged air is brought down at a high rate of speed. The wind speed can range from 40mph to over 100 mph in rare cases. As the air rushes down the tall thunderstorm “collapses” and falls apart. Yesterday’s winds were estimated to be 60-80mph…….Tony Petrarca

microburts explainer


Watching The Tropics

September 4th, 2013 at 3:32 pm by under Tony's Pinpoint Weather Blog

Good Afternoon From Chief Meteorologist Tony Petrarca

Latest Satellite Photo Shows Cluster Of Thunderstorms Associated With A Broad Area Of Low Pressure Near Puerto Rico. We Will Continue To Track And Monitor This For “Possible” Tropical Storm Development. At this point it has a low to moderate chance for tropical storm formation…stay tuned for updates…………Tony Petrarca

invest92

 

The map below shows  various computer model forecast tracks next several days….

 invest speghetti plot

 

 

 


This Date In Weather History, August 28, 2011

August 28th, 2013 at 3:07 pm by under Tony's Pinpoint Weather Blog

 

Good Afternoon From Chief Meteorologist Tony Petrarca…..

Satellite Image from 2 yrs ago of Irene Headed For New England….4o people killed along the East Coast

Highest gust:  83 mph Barrington RI

Irene Satellite Photo 2011     

 

 

 

 

 

Irene was the first hurricane to hit the United States since Hurricane Ike struck Texas in September 2008.

Irene was the first storm to threaten the New York City area since Hurricane Gloria in September 1985.

On Saturday, August 27, Irene’s hurricane force winds extended outward up to 90 miles from the center

and tropical storm force winds extended outward up to 290 miles.

Irene was similar in size to Hurricane Katrina nearly six years ago to the date. Katrina’s hurricane force

winds extended outward about 104 miles with tropical storm force winds felt outward 230 miles.

River flooding records were broken in 26 rivers. New Jersey (8), New York (14), Vermont (4).

At least 40 people have died as a result of the storm. (8/30; various media reports)

About 3.5 million customers were without power; that’s about 9 million people (media reports)

80 million people within 200 miles of storm track (source: CIESEN, Columbia University)

49 million people within 100 miles of storm track (source: CIESEN, Columbia University)

2.3 million people were under mandatory evacuation orders. 1 million in New Jersey, 315,000 in

Maryland, 300,000 in North Carolina, 200,000 in Virginia, 100,000 in Delaware, and 300,000 people in

New York City.

10,000 flights canceled for August 27

28. SWF, JFK, LGA, PHL, ISP and EWR airports were closed.

Numerous roads are closed in New Jersey and PA due to flooding and downed limbs, including portions

of I78, I80, I287 and I

95. 140 roads closed in MD due to downed trees and 46 due to flooding.

The New York Mass Transit Authority (MTA) stopped subway, bus, and Long Island Rail Road, and Metro

 

North Railroad services were shut down. NJ Transit and Path trains also ceased operations.

Amtrak canceled all service on the Northeast corridor.

Hurricane Irene will be the 10th billion dollar disaster in 2011. This 10th U.S. billiondollar disaster

officially breaks the annual record dating back to 1980.

(above stats, data courtesy of NOAA)

 

 

 


New Tropical Storm Forms In Atlantic

August 15th, 2013 at 3:15 pm by under Tony's Pinpoint Weather Blog

Good Afternoon From Chief Meteorologist Tony Petrarca….

The 5th named storm of the season has formed…Tropical Storm Erin. located about 100 miles west-southwest ofCape Verde Islands with winds of 40 mph, moving  west northwest at 15 mph. Below is a high resolution satellite photo showing the swirl of clouds off the African coast…

THE CENTER OF TROPICAL STORM ERIN WAS
LOCATED NEAR LATITUDE 14.4 NORTH…LONGITUDE 26.5 WEST. ERIN IS
MOVING TOWARD THE WEST-NORTHWEST NEAR 15 MPH…24 KM/H…AND THIS
GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT COUPLE OF DAYS.
ON THE FORECAST TRACK…THE CENTER OF ERIN WILL CONTINUE MOVING
AWAY FROM THE CAPE VERDE ISLANDS.

MAXIMUM SUSTAINED WINDS ARE NEAR 40 MPH…65 KM/H…WITH HIGHER
GUSTS. SOME STRENGTHENING IS FORECAST DURING THE NEXT 48 HOURS.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 35 MILES…55 KM…
MAINLY TO THE EAST OF THE CENTER.

THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1006 MB…29.71 INCHES.

erin vis

 

 

 

 

 

 

 

 

 

 

 

 

 

Here is the forecast track for Erin over the next several days….stay tuned for updates.

erin track 1


Tropical Depression #5 Forms…

August 14th, 2013 at 11:31 pm by under Tony's Pinpoint Weather Blog

Good Evening …..

Satellite pictures show Tropical Depression #5 has formed near Cape Verde Islands.  Also another area in the Caribbean is showing signs (greater than 70% chance) of development too..

TROPICAL DEPRESSION FORMS OVER THE FAR EAST ATLANTIC…
TROPICAL STORM WARNING ISSUED FOR THE SOUTHERN CAPE VERDE
ISLANDS…

SUMMARY OF 11 PM
———————————————–
LOCATION…14.0N 23.5W
ABOUT 80 MI…130 KM SE OF THE SOUTHERNMOST CAPE VERDE ISLANDS
MAXIMUM SUSTAINED WINDS…35 MPH…55 KM/H
PRESENT MOVEMENT…WNW OR 290 DEGREES AT 14 MPH…22 KM/H
MINIMUM CENTRAL PRESSURE…1008 MB

WATCHES AND WARNINGS

THE GOVERNMENT OF THE CAPE VERDE ISLANDS HAS ISSUED A TROPICAL STORM
WARNING FOR THE SOUTHERN CAPE VERDE ISLANDS OF MAIO…SANTIAGO…
FOGO…AND BRAVA.

A TROPICAL STORM WARNING IS IN EFFECT FOR…THE SOUTHERN CAPE VERDE ISLANDS OF MAIO…SANTIAGO…FOGO…AND
BRAVA

Chief Meteorlogist Tony Petrarca

tropics

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This next satellite photo shows a cluster of thunderstorms organizing in the Caribbean. Development is likely next few days. This “potential ” storm will head for the Gulf Of Mexico

atl1


How “DEW” you do……

August 7th, 2013 at 6:13 pm by under Tony's Pinpoint Weather Blog

Good Evening From Chief Meteorologist Tony Petrarca

After several days of very dry refreshing air, humidity levels will be on the rise Thursday and Friday. This extra moisture (water vapor) in the air will help to enhance showers and thunderstorms (at times) next few days.  A cool front will move offshore by Saturday morning…..behind  this front,  the air dries out for most of the weekend.  Our “Dew Points” will take a bit of a rollercoaster ride…..low dew points now….much higher Thursday and Friday….then dropping by the weekend. 

So… what is the Dew Point?   It’s a direct measurement of how much humidity is in the air. The higher the number, the higher the moisture content.  Let’s say the dew point at night is 65 degrees….now if the air temperature at night cools to 65, then clouds, fog or dew will form. 

 dewss

 

Tony Petrarca


July 2013 Review…. A Hot Month

July 31st, 2013 at 6:45 pm by under Tony's Pinpoint Weather Blog

 

Good Evening From Chief Meteorologist Tony Petrarca

July 2013 was a very warm to hot  month, which featured three heat waves . There was a total of 11 days with temperatures of 90 degrees or higher and 4 days with temperatures between 87-89 degrees.

The average temperature for the month (day plus night temps) was 78.6 degrees. That is +5.1 degrees above normal. Night were very warm too, coupled with high humidity….On 19 overnights, the temperatures never dropped below 70 degrees.

 

Heat wave #1 was from July 4 thru the 8th

Heat wave #2 was from July 14 thru the 16th

Heat wave #3 resumed July 18th thru the 20th

 

The hottest day occurred on the 19th as temperatures soared to 98 degrees.  The coolest temperature was 60 degrees on the 25th.

 

Rainfall for the month came in at 2.26 inches which is 0.90 inches below average. Keep in mind, that number is for Green Airport in Warwick, where the official state weather records are kept. Summertime precipitation has a wide variability from place to place due to the scattered nature of showers and thunderstorms.


Dorian Weakens

July 26th, 2013 at 6:48 pm by under Tony's Pinpoint Weather Blog

Good Evening ….

At one point Tropical Storm Dorian had winds of 60 mph. The storm has become poorly organized with wind speeds down to 45 mph. Infact  the forecast takes it below tropical storm strength to what is called a tropical depression. Below, is the 5 fay forecast….if the storm even holds together, it will track west northwest, approaching eastern tip of Cuba as a depression by next Tuesday. 

Chief Meteorologist Tony Petrarca

dd

 

 

 

 

 

 

 

 

 

 

 

 

Dorian 5 Day Forecast Track

Image below is the latest “Daytime”  high resolution satellite picture.  We are seeing signs that the main center of circulation falling apart as wind shear weakens the storm. What is wind shear?  Ofcourse tropical storms and hurricanes are winds storms themselves, however these storms do not do well  moving thru enviorements where the winds outside and above the storm itself  are strong and changing direction. That is wind shear..vis0-lalo

 

 

 

 

uuuu

 

 


Showers Return Thursday And Friday

July 25th, 2013 at 12:07 am by under Tony's Pinpoint Weather Blog

Good Morning (yes its 12:03am) From Chief Meteorologist Tony Petrarca…

Just a quick update on what I am thinking for next few days…

The cool front that went thru Wednesday Evening (that’s the blue line on the map below) has stalled offshore.  That “blue line boundary” separates humid air to the south of it, and drier less humid air to the north.  A storm (area of  low presure)  will form on the front and drift in our direction Thursday into Friday. This will bring the chance for showers and thunderstorms during that time period.  Showers will move out Friday evening, seting up for a warm dry sunny Saturday….

stalled front


Tropical Storm Dorian

July 24th, 2013 at 6:48 pm by under Tony's Pinpoint Weather Blog

Good Evening From Chief Meteorologist Tony Petrarca

The 4th named storm of the hurricane season has formed..Dorian.  It is far out at sea, actually closer to the coast of Africa than the United States, so many days to watch the developments.  By August and certainly September we start seeing more storms form in this part of the Atlantic near the Cape Verde Islands.  Storms like Dorian have a very long  journey across the Atlantic if they are to reach the United States. Many atmospheric variables come into play..some which favor a storm sustaining, others which cause them to weaken. Below is  a map which shows typical paths of storms born of the Cape Verde Islands…

500px-Cape_Verde_hurricane_track

 

 

 

 

 

 

Infact the great 1938 New England hurricane formed off the coast of Africa.   We will keep a close on on Dorian. The  5 days forecast maintains at least tropical storm strength as it approaches near Puerto Rico early next week as  minimal tropical storm.

ddorian

 

 

 

 

 

Dorain  5 Day Forecast Track

 


Severe Storms Saturday Will Break The Heat….

July 17th, 2013 at 12:37 am by under Tony's Pinpoint Weather Blog

Good Early Weds. Morning From Chief Meteorologist Tony Petrarca…

Looking ahead to Saturday….all the “ingredients” may come together to produce strong to severe thunderstorms.  The combination of heat, humidity, an approaching cold front and wind speeds increasing in the upper levels of the atmosphere (just to name a few), will help develop these storms later in the day…..stay tuned for updates. This strong cold front will break the heat wave, bringing relief on Sunday.

saturday

 Saturday Afternoon Forecast Map Shows Strong Cold Front


A 5-7 Day New England Heat Wave…

July 15th, 2013 at 6:54 pm by under Tony's Pinpoint Weather Blog

Good Evening from chief meteorologist Tony Petrarca…..

Its not just the heat, its the humidity too. In the winter we have the feel like temperature called the “Wind Chill”. In the Summer it’s called the “Heat Index”. The combination of the high humidity makes the already hot temperatures feel hotter. The heat index will be approaching over 100 degrees Tuesday in those areas shaded in pink…now  ALL locations will be hot Tuesday, but the most significant heat index values will be those areas shaded in pink on the map below.

One way our bodies cool off is by having the perspiration on our skin evaporating…the evaporation process removes heat and our body temperture cools. However when the humidity in the air is very high, it is more difficult for evaporation to occur and our body temperature does not cool…hence the heat index.

heat index

 

 

 

 

 

 


New England Tornadoes

July 11th, 2013 at 6:39 pm by under General Talk, Tony's Pinpoint Weather Blog

Good Evening from chief meteorologist Tony Petrarca

While tornadoes in New England are not a common occurance in terms of frequency. we certainly have a history.  As noted in Pete Mangione’s  previous blog, it was a confirmed Tornado just 25 miles from the Rhode Island border yesterday evening. I found some data on New England tornado locations and path lengths.  Red lines on the map below are past tracks of twisters. A few notable things to point out…1) The maximum frequency is across the Connecticutt River Valley And Central Massachusetts…..2) Notice the lack of activity near the coast.  Keep in mind, tornadoes form inside of severe thunderstorms…severe thunderstorms need very warm to hot air to maintain intensity. Many times on  a Summer Afternoon cool, ocean air will keep temperatures across the southern 1/3 of the state cooler, so thunderstorms tend to be weaker. That’s not to say the coast does not see violent thunder, but it is less frequent. 

 

 

 506px-New_England_tornado_paths[1]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

New England Tornado Tracks


Tornado Touches Down Over R.I. Border

July 10th, 2013 at 10:06 pm by under General Talk, Tony's Pinpoint Weather Blog

Good Evening From Chief Meteorologist Tony Petrarca….

Tornado touched down early the evening in northeast Connecticut.  As the tornadic thunderstorm approached northwest Rhode Island it diminished significantly. Below is a radar image of  the small, but strong storm over northeast Conn. Myself and meteorologist TJ DelSanto were concerned about this storm due to the “shape” of the radar signiture.  The subtle hook like shape is an indicator of some rotation within the storm. After the tornado warning was issued for northeast Conn., a picture of the tornado on our social media came in, showing the actual twister on the ground…and all of this just 20-25 miles away from the Rhode Island border! 

 

hook echo Click Here For Latest

 

 

torn storrs Ct

 

 

 

 

 

 

 

 

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Chantal Update

July 8th, 2013 at 6:49 pm by under Tony's Pinpoint Weather Blog

Good Evening….

Tropical Storm Chantal has not become better developed as of yet….however, over the next few days the storm is expected to get a bit stronger, followed by some weakening as it approaches the Bahamas by Saturday.  Storm is still far away, located about  390 miles east of Barbados.

What is interesting about this storm is the location and time of year it formed. We usually don’t see too many storms form in this part of the Atlantic in early July.  This may be a sign of things to come as far as the hurricane season as a whole which is expected to be very active.  Thanks for checking our blog…stay tuned for updates this week on future movements on Chantal……Tony Petrarca

chantal


Unsettled Weather Pattern (At Times)

June 26th, 2013 at 7:11 pm by under Tony's Pinpoint Weather Blog

Good Evening From Chief Meteorologist Tony Petrarca…

When we refer to the weather “pattern” we are talking about a  certain kind of weather that sets up for several days to  several weeks.  The weather players  that are setting up in the atmosphere right now will maintain right thru next week. The map below shows the “Players”. One is an area of low pressure across the upper Mid-West and Great Lakes. The other is an area of High pressure offshore (sometimes called the Bermuda High). Both will be parked in place thru early next week. The wind flow around both systems is such that warm and humid air will be drawn into our area (its already here). This air is “unstable” meaning it has the ability to rise very easily.  Rising air creates showers and thunder. The faster the air rises, the more severe  a thunderstorm can be.  Now this doesn’t mean each day is going to be raining non-stop every hour. There will be “rain-free” stretches too….but, when it does rain, heavy downpours can happen. That is why a “Flash Flood Watch” has been issued for Thursday and Friday.

unsettled

 

 

 

 

 


RIVER UPDATES

June 14th, 2013 at 7:00 pm by under General Talk, Tony's Pinpoint Weather Blog

Good Evening from Chief Meteorologist Tony Petrarca….

My Latest Video Forecast Click Here

Even though the rain has ended an additional slight rise in water levels will continue to due runnoff. While most rivers will experience “minor” flooding, the Pawtuxet will range a  flood range as “Moderate” Tonight into Saturday. Stay tuned for updates

river update

 

 

THE FLOOD WARNING CONTINUES FOR
  THE BLACKSTONE RIVER AT WOONSOCKET.
* FROM THIS EVENING TO SATURDAY MORNING…OR UNTIL THE WARNING IS
  CANCELLED.
* AT  4:16 PM FRIDAY THE STAGE WAS 8.4 FEET.
* FLOOD STAGE IS 9.0 FEET.
* MINOR FLOODING IS FORECAST.
* FORECAST…THE RIVER WILL RISE ABOVE FLOOD STAGE BY TONIGHT AND
  CONTINUE TO RISE TO NEAR 9.1 FEET AFTER MIDNIGHT TONIGHT. THE
  RIVER WILL FALL BELOW FLOOD STAGE BY EARLY TOMORROW.
* IMPACT…AT 9.0 FEET…FLOODING MAY BEGIN TO AFFECT THE LOWER
  PARKING AREA TO THE ALBION MILL APARTMENTS. LOWER LYING
  RESIDENTIAL AREAS ALONG THE RHODE ISLAND AND MASSACHUSETTS
  LINE…INCLUDING THE LOWER LEVEL OF THE RIVER ISLAND CONDOMINIUMS
  IN WOONSOCKET…MAY BEGIN TO EXPERIENCE FLOODING. BUSINESSES ALONG
  THE RIVER SHOULD TAKE THE NECESSARY ACTIONS TO PROTECT PROPERTY.

 

THE FLOOD WARNING CONTINUES FOR
  THE PAWTUXET RIVER AT CRANSTON.
* UNTIL FURTHER NOTICE…OR UNTIL THE WARNING IS CANCELLED.
* AT  3:45 PM FRIDAY THE STAGE WAS 11.0 FEET.
* FLOOD STAGE IS 9.0 FEET.
* MODERATE FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FORECAST…THE RIVER WILL CONTINUE RISING TO NEAR 11.2 FEET
  AFTER MIDNIGHT TONIGHT THEN BEGIN FALLING ON SUNDAY BUT STILL
  REMAIN ABOVE FLOOD STAGE.
* IMPACT…AT 11.0 FEET…STRUCTURES AND HOMES ARE IMPACTED IN LOW
  LYING SECTIONS OF WARWICK.  AFFECTED AREAS INCLUDE HOMES AND
  BUSINESSES ON WELLINGTON AVENUE AND AVERY ROAD IN CRANSTON…AS
  WELL AS PIONEER AVENUE…BELLOWS STREET…VENTURI AVENUE AND A
  PORTION OF RIVER STREET IN WARWICK.