Update on weather for next two a.m. commutes
A bit of light snow and sleet has left a very light accumulation in spots this evening with little to no impact. After last week's midweek mess, however, a lot of folks are concerned what the potential for wintry and wet weather may mean for tomorrow morning's and Wednesday morning's commutes. Here's our latest thinking...
Tonight/Tuesday: The forecast through early-to-mid morning is best described as patchy light frozen precipitation (snow, sleet, and/or freezing rain), especially in the northern suburbs, with temperatures remaining below freezing in the mid-20s to near 30. While I don't think it's going to be a big deal, I also don't want to downplay it too much, as some slick spots could be around for the morning commute. Overall, though, this is a minor event.
We'll see a general lull in precip chances from mid-to-late morning tomorrow into the evening, though occasional periods of drizzle or freezing drizzle may persist as highs only reach the mid-30s.
SchoolCast (for Tue):
Tuesday night/Wednesday: Evening temperatures are in the low-to-mid 30s and the leading edge of the big Midwest storm arrives in the D.C. area around midnight, give or take an hour, in the form a solid shield of moderate-to-heavy precipitation. There's little question that the precip will be rain, since temps at cloud level will be well above freezing - possibly warm enough for some thunder. The question is whether, where and for how long surface temps stay at or below freezing, making any rain that falls freezing rain (rain that freezes on contact with the surface).
This is probably an all plain rain event south of the District. From D.C. north we're looking at the possibility of a period of freezing rain before changing over to rain by 4-7 a.m., as warmer air starts to move in from the south/southeast and as the moderate-to-heavy rain brings down the warmer air from above. The exception is northern Loudoun County, northern Montgomery County, Howard County and points north (including Frederick County), where freezing rain may linger later in the morning. The whole thing is probably over by around lunchtime with afternoon highs well above freezing, in the 40s to low 50s.
Bottom line is that most of the metro area should be ok - soggy but not frozen - by around 7 a.m. Wednesday at the latest, unless the cold air hangs around longer than we currently anticipate. So as of now, it appears that pre-sunrise commuters, especially the further north and northwest you go from D.C., have the most to worry about, but do check back with us tomorrow for the latest.
And finally: We got a good chuckle out of this cartoon here at CWG. Thought we'd share...
Posted by: kolya02 | January 31, 2011 10:32 PM | Report abuse
Posted by: jrodfoo | January 31, 2011 10:35 PM | Report abuse
Posted by: SNOWLUVER | January 31, 2011 10:36 PM | Report abuse
Posted by: ArlTeacherSnowman | January 31, 2011 10:40 PM | Report abuse
Posted by: yannos | January 31, 2011 10:43 PM | Report abuse
Posted by: Snowteacher | January 31, 2011 10:47 PM | Report abuse
Posted by: DLO1975 | January 31, 2011 11:02 PM | Report abuse
Posted by: BMSBKiller | January 31, 2011 11:05 PM | Report abuse
Posted by: FIREDRAGON47 | January 31, 2011 11:07 PM | Report abuse
Posted by: mo_dc | January 31, 2011 11:09 PM | Report abuse
Posted by: natsncats | January 31, 2011 11:14 PM | Report abuse
Posted by: curmudgeon31 | January 31, 2011 11:32 PM | Report abuse
Posted by: Jason-CapitalWeatherGang | January 31, 2011 11:34 PM | Report abuse
Posted by: SJMPARMAN | January 31, 2011 11:58 PM | Report abuse
Posted by: SJMPARMAN | February 1, 2011 12:27 AM | Report abuse
Posted by: TheAnalyst | February 1, 2011 1:07 AM | Report abuse
Posted by: dcnative71 | February 1, 2011 1:36 AM | Report abuse
The comments to this entry are closed.