Presently, a developing area of low pressure around the Ohio River valley is pushing rain showers into northern Maryland from west to east.
The current thinking is that rain showers will stay generally north of Washington until tomorrow around noon as bands of light precipitation move southward as a small cell of high pressure pushes in from the northwest. Even with the high pressure in place for Tuesday, skies are expected to remain generally cloudy with high temperatures climbing into the upper 50s to near 60.
While our temperatures remain warm enough for a pure rain event, folks up in New York and northern Pennsylvania are in for a significant icing event. Freezing rain is expected to coat the region in over a quarter inch of ice.
Forecast through the rest of the week:
Another developing low during the middle of the week is expected to bring the area yet another shot at some light rainfall. Our chances for rain will slowly increase through the day on Wednesday as a warm front lifts north of the region before the low moves east by Thursday evening.
Even with all this rain in the forecast (looking at the National Weather Service forecasts, you'll see rain symbols every single period up until Thursday), just know it will not be raining every single minute for the next 4 days. We will have sporadic, elevated chances of rainfall through the week, with the best chances coming during the day tomorrow and Wednesday night into Thursday.
Rainfall accumulations are quite high through the week given all of these stubborn low pressure systems. The graphic to the right show total precipitation accumulations through Friday night as forecast by the GFS (Global Forecast System) model. Granted, I think the totals are too high for most locations, but it just gives you an idea of how much moisture there is in the atmosphere this week.
Image above: GFS Total precipitation accumulations through 00Z Saturday. Courtesy of Accuweather.
I thought Hurricane Season was over?
Hurricane season officially ended on November 30, but the National Hurricane Center is monitoring a disturbance in the Caribbean that may develop into yet another tropical system:
Hurricane Season hasn't given up yet.
WATER TEMPERATURES ARE STILL WARM ENOUGH IN THIS AREA TO
SUPPORT TROPICAL CYCLONE FORMATION...AND UPPER-LEVEL WINDS ARE NOT ESPECIALLY PROHIBITIVE FOR DEVELOPMENT. THIS SYSTEM HAS THE POTENTIAL TO BECOME A TROPICAL OR SUBTROPICAL STORM DURING THE NEXT 24 HOURS
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