As of 5pm Wednesday, Tropical Storm Arthur was near 29.7N 79.1W or about 435miles south-southwest of Cape Hatteras, NC. It was moving northward at 7mph. Sustained winds are of 70mph, just 4mph shy of being a hurricane.
Convection (showers/t’storms) around the center continues to look impressive. You can see the clumpy white clouds right around the center of circulation on the visible satellite picture above.
In the infrared satellite picture below, where the temperature of the cloud tops is measured, you can see the purples and pinks of the coldest cloud tops around the northern periphery of the storm.
Arthur is expected to form into a hurricane, possibly by later this evening. A northward movement will continue before a weather system moving across the Midwest begins to steer Arthur to the northeast.
Live Pinpoint Doppler 12: 7-Day Futurecast | Closings and Delays | WPRI.com Flight Tracker
Hurricane Arthur will pass to our south and east late Friday and early Saturday. Although we won’t get the winds associated with Arthur, we will see some rain. Moisture associated with the system will stream along a cold front moving through New England on Friday.
The interaction between the front and moisture will produce occasional rain, possibly heavy at times, through the day on Friday…beginning in the morning and continuing through the evening. Some thunderstorms are possible, too. The 4th of July looks like it could be a washout.
Once the front passes through the area, drier air will return for Saturday and Sunday. However, the hurricane will have stirred up the ocean so much that large waves will be crashing on our shores and dangerous rip currents are possible through the weekend.
-Meteorologist T.J. Del Santo