Forecast: Icy Challenges Today
Most travel woes well north and west of city
Winter Weather Advisory in effect through 9 a.m. tomorrow N&W of D.C. (includes Montgomery, Loudoun, Howard counties and points N&W; advisory discontinued for Fairfax and Prince William County)
Today: Wintry mix and/or rain. 31-35. | Tonight: Mix to rain. 31-35. | Tomorrow: Morning Rain. 41-45. | A Look Ahead
FORECAST IN DETAIL
A classic clash of air masses is creating a complicated weather picture for the D.C. area today. Cold air that filtered southward overnight will interact with warmer air and precipitation from our south today. North and west of town, occasional sleet and freezing rain will develop and gradually increase in intensity as the day wears on. Inside the Beltway and to the south and east, sleet will probably turn to plain rain, but temperatures will be close enough to freezing that some icing cannot be entirely ruled out.
Today (Tuesday): In the normally colder north and west suburbs, morning sleet will probably change to freezing rain by midday. Temperatures should generally hover near freezing. There may be some lulls in the precipitation and it is forecast to be heaviest in the late afternoon toward evening. Although the ground is not very cold, watch out for slick spots especially late in the afternoon with the loss of daylight. As usual, bridges, ramps, overpasses, and untreated sidewalks will be the main trouble spots.
Inside the Beltway and points south and east, it should be at or just above freezing through the day, reducing the threat of iciness and resulting in mainly a cold rain. However, some sleet may mix in with the rain during the first half of the day and temperatures will be close enough to freezing for the evening rush hour that the situation will bear watching. Confidence: Low-Medium
Tonight: Precipitation continues overnight. Areas well north and west of the city may remain at or just below freezing so significant accumulations of ice are possible (stay tuned for updates through the day today) especially towards Frederick and Loudoun counties. In the immediate suburbs, city, and south and east mostly rain should fall, but temperatures will remain perilously close to freezing. Confidence: Low-Medium
Keep reading for the forecast through the weekend.
Tomorrow (Wednesday): All areas should see just plain rain by Wednesday morning with temperatures rising into the low to mid- 40s by midday and afternoon. Areas well to the east and south of the city could briefly surge into the 50s even. Rain should taper to showers by the afternoon. Confidence: Medium-High
Tomorrow Night: Some showers are possible as temperatures head back lower again. Expect low to middle 30s by dawn with continued cloudy skies. Confidence: Medium
On Thursday, cold air continues to pump back into the region. The atmosphere looks unstable, so we cannot rule out some stray flurries during the day. Highs should only get to the upper 30s or very low 40s. Look for variable sky cover. Confidence: Medium
Friday might possibly be our sunniest day of the week with a cold start (lower to middle 20s) and a daytime temperature near to below normal in the upper 30s to lower 40s. Confidence: Medium
The weekend is currently looking split between a milder Saturday and a colder Sunday. Saturday is favored to feature temperatures in either the upper 40s or lower 50s with late day showers, while Sunday should see more sunshine, but colder weather back down into the 30s once more. Confidence: Low-Medium
The long range indications are hinting about possibly much stronger January cold in the D.C. area by later next week.
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