PM Update: After a warm day, cool air on the way; Subtropical Storm Melissa forms

November 18, 2013

Temperature Map

Temperatures: Latest D.C. area temperature map. See interactive map on our Weather Wall.

Hope you got a chance to spend some time outside today as highs right around 70 are warmer than we’ll be seeing for a while. A downsloping wind off the mountains nicely counteracted cooler air beginning to filter in behind the front. As the sun sets, you’ll begin to notice that cool air more.

Through Tonight: Skies remain mostly clear through the night. Lows mainly settle into the 30s, with a range from about the mid-30s in the cold suburbs to near 40 downtown. Winds decrease slightly  but stay up around 10 mph from the northwest, with higher gusts, through the night.

Tomorrow (Tuesday): It’s one of those days where it looks nicer out than it feels. Mostly sunny skies are accompanied by brisk northwest winds around 15-20 mph during the midday, probably slowing late. Highs only rise into the upper 40s and around 50. If you thought it was too warm today, you should be a fan!

See Jason Samenow’s forecast through the weekend. And if you haven’t already, join us on Facebook and follow us on Twitter . For related traffic news, check out Dr. Gridlock.


Subtropical Storm Melissa is seen well east of the United States around midday today. (NOAA)

Melissa: As we close in on the end of hurricane season (Nov. 30), the “M storm” formed today. Subtropical Storm Melissa, the 13th named storm of the season, is spinning relatively harmlessly over the open Atlantic and is expected to stay out there before heading toward Greenland. Why is it subtropical and not purely tropical? Simple answer: fronts. CWG’s Brian McNoldy explained those features and what we can expect from the storm earlier today.

Ian Livingston is a forecaster/photographer and information lead for the Capital Weather Gang. By day, Ian is a defense and national security researcher at a D.C. think tank.
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Jason Samenow · November 18, 2013