|Dew Point:||34.0°F (1.1°C)|
|Sea Level Pressure:||27.01" (914.6 mb)|
Mostly CloudyLow: 34
Light RainHigh: 42 Low: 39
RainHigh: 47 Low: 36
Rain Showers LikelyHigh: 43 Low: 33
SunnyHigh: 44 Low: 26
Mostly cloudy, with a low around 34. South wind around 8 mph.
Rain after 10am. Cloudy, with a high near 42. Southeast wind around 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Rain. Cloudy, with a low around 39. Northeast wind 9 to 13 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Rain before 1pm, then rain showers. Cloudy, with a high near 47. Northeast wind 7 to 12 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Rain showers. Cloudy, with a low around 36. Northwest wind around 12 mph. Chance of precipitation is 80%.
Rain showers likely. Mostly cloudy, with a high near 43. Chance of precipitation is 70%.
A chance of rain showers before 7pm. Partly cloudy, with a low around 33. Chance of precipitation is 50%.
Sunny, with a high near 44.
Mostly clear, with a low around 26.
...High pressure will linger over the region through tonight. A large area of low pressure will impact the area at the end of the week through this weekend bringing widespread rain and potential for flooding. High pressure will return early next week.
NEAR TERM /THROUGH TONIGHT/...
Mid-high level clouds will continue to thicken tonight and fill in where skies are still clear at this time. Lows will be generally in the low to mid 30s. Some guidance is indicating potential for low clouds/stratus form over northeast MD overnight, but not quite sure of this.
SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/...
Cutoff low over wcntrl TX this afternoon will move ewd next 24 hrs and then begin to lift northeast toward the mid-Atlc states Sat. Southwest flow aloft and southeast sfc flow will draw Gulf and Atlc moisture nwd into the area Fri night into Sat with PWATs expected to climb in the 1-1.5 inch range. Rain is expected to arrive in the southwest part of the CWA by 18Z Fri and spread quickly northeast during the afternoon. Rain...possibly heavy at times...is expected Fri night into the first half of Sat as developing coastal low pressure lifts northeast along the mid-Atlantic coast. Widespread rainfall amts of an inch or more are expected with the potential for as much as 2.5-3 inches especially east of the Blue Ridge and along the I-95 corridor. This amount of rainfall may cause flooding of small streams and creeks and in urban areas due to snowmelt and unreceptive soils from all the rain during the past several weeks. The period of heaviest rainfall is expected to be Fri night. For this reason, a flood watch has been issued for almost the entire fcst area. Steady moderate rain is likely to end by midday Sat with precip becoming more showery in the afternoon.
Even as steady rain ends Sat, weather will remain unsettled through the entire weekend as cutoff low pressure moves south of the area and destabilizes atmosphere aloft. Anticipate occasional showers or even perhaps a thunderstorm especially on Sunday. Any additional rainfall Sat night and Sun should be on the light side and not cause any new or additional flooding.
LONG TERM /SUNDAY THROUGH THURSDAY/...
After a wet weekend, a period of dry, but chilly, weather looks to set up through the middle of the week.
On Sunday, the cutoff upper low will move over, or just south of the region. There is still a little bit of uncertainty of where the upper low tracks, but it seems to be more likely that rain continues into Sunday. Likely POPs continue into Sunday evening as a result. With the upper low passing by so close by, temperatures will remain in the 40s.
High pressure will build in from the west Sunday night into early next week. An Arctic cold front will sweep through on Monday. Temperatures will moderate on Monday ahead of the front, possibly reaching the upper 40s to low 50s, which is right around normal for mid-December.
High pressure builds in from the west through mid-week, brining a period of dry weather to the region. Temperatures on Tuesday will be in the low 40s. As high pressure passes over the region and offshore by Thursday, temperatures will gradually moderate throughout the week. Wednesday or Thursday could be slightly above average for this time of year.