T.J. Del Santo

Autumn Officially Arrives Monday

September 21st, 2014 at 8:57 pm by under General Talk, Tony's Pinpoint Weather Blog

The leaves are beginning to change color and the temperatures are getting cooler….autumn is upon us.   Autumn will officially be here at 10:29pm Monday evening — the time of the Autumnal Equinox.

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What is an equinox exactly? Equinox comes from a Latin word, aequus, which means equal — equal days and equal nights.   Astronomically, it’s the tilt of the Earth that causes the solstices and equinoxes.  At a summer or winter solstice, the Earth is tilted.  At an equinox, the Earth is not tilted and is instead oriented straight up and down, north to south.  At the exact time of the equinox, the sun shines directly on the equator.  This year that exact time is 10:39pm.

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Big Waves and Rip Currents Expected Monday

September 21st, 2014 at 8:03 pm by under General Talk, Tony's Pinpoint Weather Blog

A fairly potent ocean storm passing to our south and east is creating some big waves.  These waves will have a big impact on our coastline on Monday.  This system is passing closer than Bertha, Cristobal and Edouard did this summer.  While the system is weaker, its proximity to Southern New England will create larger and more frequent waves.

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This low is non-tropical, but it has a fairly deep central pressure of 997mb and winds of 25-30mph with higher gusts. These winds are creating the big waves which will impact Southern New England’s coastline on Monday.

The National Weather Service has issued a High Surf Advisory for Monday 8am-5pm.

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CVS Downtown 5K and Patriots Futurecast: Showers

September 20th, 2014 at 11:57 pm by under General Talk, Tony's Pinpoint Weather Blog

Moisture was working its way up the coastline Saturday evening and it’ll  be here in Southern New England on Sunday.  Expect some showers in the area, but we are not expecting a washout.  The bulk of the rain should remain offshore.  That moisture is associated with an area of low pressure that developed off the Carolina coast on Saturday.

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We expect the showers to develop in Southern New England before dawn on Sunday.   These showers will be mostly around during the morning on Sunday and they should be fairly scattered in nature.

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Watching a Low Center off the Carolina Coast

September 20th, 2014 at 10:50 pm by under General Talk, Tony's Pinpoint Weather Blog

We are watching an area of low pressure off the Carolina coastline very closely.  This steadily developed and strengthened through the day on Saturday.

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If this low were to sit off the coast another day or so, this system could become a tropical storm.  As of 10:15pm Saturday, the winds around the center were strengthening.  This is some weather information from a buoy just to the northeast of the center.

Courtesy: NOAA/National Data Buoy Center

Courtesy: NOAA/National Data Buoy Center

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Cold Morning, Cold Tonight, Warmer Weekend

September 19th, 2014 at 11:24 am by under General Talk, Tony's Pinpoint Weather Blog

Brrrrr…..temperatures this morning were pretty cold (by September standards) throughout New England.  Here in Southern New England, temperatures were between 42 and 50 at sunrise…a little milder on the Cape and on the Islands.

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In Northern New England and Upstate New York, temperatures were winter-like…and it’s not even officially Fall yet! The low was 21° in Saranac Lake, NY!!

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Northern Lights Could Be Visible Friday Night

September 12th, 2014 at 11:44 am by under General Talk, Tony's Pinpoint Weather Blog

Some space weather forecasters are saying tonight could be the best opportunity for us to see the Northern Lights in over a year.   Forecasting this phenomenon is very difficult, but here’s how you may be able to see it tonight.

  • Wait until the sky gets dark
  • Get away from city lights
  • Look to the northern horizon
  • Be patient, check back through the night

The science behind the Aurora Borealis

Two powerful solar flares erupted from the sun on both Monday and Wednesday this week.  Material from these eruptions was thrown through space and toward Earth.  Material released from a solar flare is called a Coronal Mass Ejection (CME).   That material is a plasma consisting of electrons and protons and sometimes helium and oxygen.

Here’s a movie of the X-Class solar flare on Wednesday from NASA:

 

The Earth’s atmosphere protects us from the large amounts of radiation from the sun; however there are times that power grids see fluctuations or damage.  Communication satellites could see disruptions and GPS units could briefly become unusable tonight.

A nice side-effect of these particles hitting the Earth is the Northern Lights or the Aurora Borealis.  Space weather forecasters from NOAA said in their “Space Weather Watch” that auroras are potentially visible from Pennsylvania to Iowa to Oregon.  We are at the same latitude as those states, so it is quite possible we could see the Northern Lights tonight.

The Northern Lights occur when the particles from the sun follow the Earth’s magnetic poles and interact with the gases in the Earth’s atmosphere.  That interaction causes the gases to emit light.   The most common color is a pale green.  On some occasions, other colors are present.

From the first eruption from the sun on Monday, Northern Lights were reported from Northern Michigan to Alaska Thursday night.   So, the atmosphere is already energized, and the one-two punch on consecutive nights could create an Aurora visible from Southern New England.   The strength of the Aurora can be measured by a number called the Kp index.  To see the lights from Rhode Island and Massachusetts, we typically need a Kp index of 7 to 8.   What makes Friday night/Saturday morning special is that some space weather forecasters are saying we could get a Kp index of 9!

 

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Birds Caught on Radar

September 12th, 2014 at 10:06 am by under General Talk, Tony's Pinpoint Weather Blog

This morning around sunrise, Live Pinpoint Doppler 12 Radar detected a very large flock of birds over Connecticut.

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Tropical Storm Edouard Latest

September 12th, 2014 at 9:32 am by under General Talk, Tony's Pinpoint Weather Blog

Tropical Storm Edouard continues his trek across the Deep Tropics.  As of 8am, Edouard was approximately 1130 miles to the west of the Cape Verde Islands.  It was moving pretty quickly, too, at about 15mph, heading westward.

Currently, the tropical storm is battling some upper-level winds and dry air, but a slow strengthening is expected during the next several days…possibly intensifying into a hurricane over the weekend.

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Minor Earthquake in RI Monday Evening

September 9th, 2014 at 3:30 pm by under General Talk, Tony's Pinpoint Weather Blog

At 9:58pm Monday evening, there was a minor earthquake just off the west coast of Portsmouth…between Portsmouth and Prudence Island.  The epicenter was right near Portsmouth Abbey.

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It was a magnitude 1.5 earthquake.  Typically, humans don’t feel earthquakes below magnitude 2.0, but a minor earthquake near New Bedford earlier this year was felt by many people.  That one was very shallow.  The earthquake Monday evening was about 7miles deep, and it’s doubtful anyone felt this tremor.   There were no reports of damage.

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Cooler Temperatures Ahead

September 8th, 2014 at 12:19 am by under General Talk, Tony's Pinpoint Weather Blog

After a very warm and humid couple of days here in Southern New England late last week, we are going into a relatively cool stretch of weather.  The average high temperature for the second week of September is between 74 and 76°F with average lows between 55 and 57°.   We’ll have a couple days when we could see temperatures get above normal, but in general, this will be a cooler than normal period.

The jet stream, a fast-moving river of air high above in the atmosphere will be dipping down across the United States this week.  The jet stream guides storm systems and batches of air around the world.

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Cold Front Almost in RI, Still Showers Through Midnight

September 6th, 2014 at 8:37 pm by under General Talk, Tony's Pinpoint Weather Blog

As of 8:30pm, a strong cold front was almost into Rhode Island.  It’ll be passing through Southern New England by midnight.  With the front comes a continued chance of showers and thunderstorms.

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Some downpours and possibly some thunder have developed just north of Providence…from North Providence into Pawtucket and Central Falls out to Mansfield.  These storms were moving east-northeast.  While the storms are bringing heavy rain to the communities in their path, they only have a slight chance of becoming severe.

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Once this front passes, there will still be the chance for additional showers, but they will likely not be severe.

-Meteorologist T.J. Del Santo


5pm Radar Update

September 6th, 2014 at 5:03 pm by under General Talk, Tony's Pinpoint Weather Blog

As of 5pm Live Pinpoint Doppler 12 Radar was detecting a couple of decent-sized thunderstorms moving through eastern Connecticut.  These storms have been producing frequent lightning and torrential rain.  As of 5pm, I have not seen or (believe to be) any wind damage from these two cells.

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Severe Thunderstorm Watch Until 9pm

September 6th, 2014 at 3:16 pm by under General Talk, Tony's Pinpoint Weather Blog

The National Weather Service has issued a Severe Thunderstorm Watch for all of Southern New England, except for the Cape and Islands.  A Watch means that there is the potential for severe storms in our area — the atmospheric conditions are favorable and becoming more favorable for the development of severe thunderstorms.

 

Weather_Alert_650x366The timing of storms in our area will be between 4 and 9pm.  These storms have the potential to bring:

  • torrential, flooding rains
  • damaging wind gusts
  • frequent lightning
  • hail
  • isolated tornado

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Strong/Severe Thunderstorms Possible Saturday

September 5th, 2014 at 8:34 am by under General Talk, Tony's Pinpoint Weather Blog

The air will be  stickier today as southwesterly winds transport higher humidity into the region.  The dew point temperatures (measure of amount of moisture in the air) will spike on Saturday in the low 70s.

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In addition, we will have a cold front moving through New England Saturday afternoon.  This front will serve as a ‘spark’ for the development of showers and thunderstorms.  The atmospheric ingredients are coming together for some of those storms to be strong to severe.

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Tornado in Worcester Sunday Evening

September 1st, 2014 at 12:03 am by under General Talk, Tony's Pinpoint Weather Blog

UPDATE:  The National Weather Service has confirmed that an EF0 tornado touched down in Worcester.  Officials found mostly tree damage and estimated the winds to be 85mph.

Here’s the initial blog post:
============================================

Between 8 and 8:30pm Sunday evening, what is believed to be a tornado moved through the city of Worcester, MA.  Judging by the damage being reported late Sunday evening, it was no where near as strong as the F4 that moved through Worcester in 1953, killing dozens of people.  This one was much weaker, but still caused some significant damage in the city.

Here’s the Doppler Radar image around that time.

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Notice the hook’ish look to this thunderstorm cell.  This shape to the thunderstorm is a classic signature of a supercell thunderstorm.  It’s a result of rain and hail (and sometimes debris) being wrapped around the storm.  Just because there’s a hook’ish look to the radar, that doesn’t mean there’s a tornado.

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Flood Advisory

August 31st, 2014 at 10:11 pm by under General Talk, Tony's Pinpoint Weather Blog

Flood Advisory for parts of area until midnight.

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From the National Weather Service:

AT 956 PM EDT...DOPPLER RADAR INDICATED AN AREA OF HEAVY SHOWERS
  AND THUNDERSTORMS ACROSS SOUTHERN RHODE ISLAND. RADAR INDICATED
  THAT 1 TO 2 INCHES OF RAIN HAS ALREADY FALLEN ACROSS THIS AREA AND
  AN ADDITIONAL INCH WILL LIKELY CAUSE MINOR URBAN AND SMALL STREAM
  FLOODING. OVERFLOWING POOR DRAINAGE AREAS WILL RESULT IN MINOR
  FLOODING IN THE ADVISORY AREA. THE AREA WAS MOVING TO THE EAST AT
  25 MPH.

* SOME LOCATIONS THAT WILL EXPERIENCE MINOR FLOODING INCLUDE
  DARTMOUTH...SOUTH KINGSTOWN...NORTH KINGSTOWN...NEWPORT...
  WESTERLY...PORTSMOUTH...MIDDLETOWN...FAIRHAVEN...NARRAGANSETT...
  TIVERTON...WESTPORT...HOPKINTON...CHARLESTOWN...RICHMOND...
  EXETER...JAMESTOWN...LITTLE COMPTON AND GOSNOLD.

-Meteorologist T.J. Del Santo

Downpours Continue to Move Through Our Area

August 31st, 2014 at 9:37 pm by under General Talk, Tony's Pinpoint Weather Blog

 

Live Pinpoint Doppler 12 Radar continues to show numerous downpours moving through the region.  We’re not seeing much lightning, but some rumbles of thunder are possible through midnight.

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-Meteorologist T.J. Del Santo


Sunday Evening Radar Update

August 31st, 2014 at 8:10 pm by under General Talk, Tony's Pinpoint Weather Blog

While some rain and isolated downpours were moving through Rhode Island around 8pm, another line of heavy rain was racing across Connecticut.   This area of rain will likely weaken a bit, but light to at least moderate rain is likely through 9pm in central and northern RI from this batch of rain.

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Also note there were some heavy downpours moving along the southeast coast of Connecticut at 8:07pm.  This will likely move across South County through 9pm.   These downpours could cause some brief street flooding.  Remember, NEVER cross a flooded roadway.

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-Meteorologist T.J. Del Santo


Sunday Evening Rain/Thunder

August 31st, 2014 at 7:20 pm by under General Talk, Tony's Pinpoint Weather Blog

Live Pinpoint Doppler 12 Radar was tracking some showers and thunderstorms moving through eastern CT and central Massachusetts around 7pm.  They were moving to the northeast between 30 and 40mph.   These storms have been producing some hail and possibly strong wind gusts.

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There has been frequent lightning with these storms as well.

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As this area of storminess works eastward, they individual storms will likely weaken as they work into Rhode Island.  Still, some heavy downpours and lightning are possible.  Some localized street flooding is possible as well.

-Meteorologist T.J. Del Santo


Shower/T’storm Risk Today

August 31st, 2014 at 8:31 am by under General Talk, Tony's Pinpoint Weather Blog

Most of today will be dry, but there is the chance for an isolated shower or t’storm late this afternoon areas north and west of Providence. Daily-Graphic-2_650x366 Further north and west of RI, we are expecting some strong thunderstorms to develop and move eastward. The Storm Prediction Center (one of the many offices of the National Weather Service) has indicated that areas north and west of RI have an elevated risk of severe thunderstorms (area in yellow below).   Furthermore, that area could be seeing damaging winds, and there’s a slight risk of a tornado there. risk (more…)


Dry Sat/Sun, Showers Possible Monday

August 30th, 2014 at 8:34 am by under General Talk, Tony's Pinpoint Weather Blog

We’ll get a beautiful day today as high pressure controls our weather  in the low and mid-levels of the atmosphere.

 

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Southwesterly winds will strengthen this evening and overnight, and the humidity will rise.  Sunday will be stickier than today and Labor Day will be even more so.

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11am Cristobal Update

August 25th, 2014 at 11:18 am by under General Talk, Tony's Pinpoint Weather Blog

Cristobal continues to show signs of slow strengthening, but upper-level winds (wind shear) continue to try to tear the system apart.

Cristobal_Vis

The visible satellite picture above clearly shows the center of circulation exposed to the north of the Bahamas.  The strongest of the showers and thunderstorms remain to the east and south of the center.  The central and southern Bahamas are continuing to see heavy rain from the system, and there have been many reports of flooding on the island chain.

At 11am, Cristobal was approximately 715 miles southwest of Bermuda and about 1275miles south of Providence.

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Cristobal 8am Update

August 25th, 2014 at 9:31 am by under General Talk, Tony's Pinpoint Weather Blog

Here’s the latest from the National Hurricane Center.  Cristobal was creeping northward away from the Bahamas.  The center was exposed with heavy showers and thunderstorms still impacting the southeast Bahamas.  You can see the ‘feeder bands’ of clouds working into the center of circulation while the brighter white clouds (thunderstorms) are focused to the east and south of the center.

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Here’s the 8am NHC info…

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Cristobal Latest

August 25th, 2014 at 7:03 am by under General Talk, Tony's Pinpoint Weather Blog

Tropical Storm Cristobal is currently near the southeast Bahamas and will slowly be moving away from the island chain today.

Embedly Powered

via Noaa

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Back to School for Many This Week

August 25th, 2014 at 5:45 am by under General Talk, Tony's Pinpoint Weather Blog

For many students, this is back to school week.   In Rhode Island, Barrington and Lincoln begin school today.   It looks like the weather will have little impact for those headed back to school during the next few days.

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High pressure will be building into Southern New England today both in the low levels and upper levels of the atmosphere.  This is a weather pattern which usually promotes lots of sunshine.

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Monday’s Outlook In S’rn New England and Williamsport

August 18th, 2014 at 12:07 am by under General Talk, Tony's Pinpoint Weather Blog

Outside of a few showers on Sunday, the weekend was pretty nice!  A cold front passed through Southern New England Sunday evening and brought with it some drier air.  High pressure will be building into the Northeast on Monday.  With high pressure, you get sinking air, so it’s harder to get clouds and precipitation.   We’ll stay dry here in Southern New England on Monday with lots of sunshine.

 

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Planetary Conjunction Monday Morning

August 17th, 2014 at 12:04 am by under General Talk, Tony's Pinpoint Weather Blog

There’s going to be an spectacular astronomical phenomenon called a planetary conjunction in the early morning sky Monday morning.  A conjunction is when planets (or any celestial bodies) appear to join together (as seen from Earth).   Earth, Venus and Jupiter will make a near perfect line in space, and this will create a unique show just before sunrise. 

After the sun and the moon, these two planets are the brightest objects in our sky.   Venus and Jupiter will look like a double star as they will appear less then 1/2° apart from each other.  That’s a very small piece of the sky.  The distance between the two will be about the size of a coffee stirrer held at arm’s length!

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Despite their close appearance in our sky, the two planets will be very far apart. 

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Sunday’s Outlook

August 16th, 2014 at 8:49 pm by under General Talk, Tony's Pinpoint Weather Blog

We are expecting some rain showers on Sunday, but we are not looking at a washout.  In fact, many people won’t even be seeing any rain.  There are two time periods for showers that we are watching– early morning and afternoon.

Early Sunday morning we could see some rain showers move in off of the ocean.  They’ll be moving northeastward and areas to the south and east of Providence could be clipped with a few showers.  The Cape and Islands could hear a rumble of thunder, too, as the air will be pretty unstable there.  Below is the computer model HRRR for midnight.   These showers are expected in Southeast New England between midnight and 8am.

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Another batch of showers will move into Southern New England from New York…similar timing here as well — midnight to 8am.

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Little League World Series Forecast

August 15th, 2014 at 3:12 pm by under General Talk, Tony's Pinpoint Weather Blog

Congratulations to the players, coaches and parents from the Cumberland American team!  They’ll be representing New England in the Little League World Series in Williamsport, PA Friday evening.   It’s a tremendous accomplishment to make it this far and Rhode Island is proud.

Weather-wise for the game, it looks good Friday evening.

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As of 3pm, there were some clumpy clouds that developed here in Rhode Island and over central Pennsylvania.  These clouds are in response to a batch of cool air above our heads and the heating of the day.  As the sun gets lower in the sky this evening, skies should be clearing out both here in RI and in PA.

Here’s what the forecast looks like for Williamsport, PA…

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Go Rhode Island!

-Meteorologist T.J. Del Santo

 


Super Weather This Evening for the Super Moon

August 10th, 2014 at 9:15 am by under General Talk, Tony's Pinpoint Weather Blog

Today will be beautiful here in Southern New England — lots of warm sunshine with low humidity.

Once you’re home from the beach or out of the pool, you might want to check out the “Super Moon” — the closest the moon will be to the Earth this year.  I think the weather will cooperate, too.

There will be a piece of energy dropping down from Northern New England today. You can see it in the image below (yellow, orange and red).

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This will help create some rain showers for parts of New Hampshire, Maine and northeastern Massachusetts, but that’s about it.   Any showers should be isolated up there, and they’ll likely stay out of our area.

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Cloud-wise for RI and nearby MA, there will be some clouds especially east of Providence.  Our computer models indicate there will be some moisture in the atmosphere at 850mb and 725mb (approximately 5,000 to 8,000feet up).   This will translate into partly cloudy skies this evening.  Below is the relative humidity in the atmosphere all the way up to about 40,000feet.  Notice the pinkish area this evening…that’s high relative humidity over Providence.  I think dry air aloft will help keep our skies in good enough condition to see the moon, especially as it rises.  Times run from left to right on the graph…UTC is Greenwich Mean Time (4hours difference from us).

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