PM Update: Cooler air streams in tonight; comet Panstarrs viewing opportunity

After this morning’s gully washer (rainfall totals of 0.6-1.2 inches in the region), skies have begun to clear and a cold front is moving off the coast. The core of the chilly air won’t arrive until Thursday, but it begins to trickle into the region tonight. Tomorrow (Wednesday), it’s somewhat unsettled, with the possibility of a shower.

Through Tonight: The clearing skies are convenient for comet hunters (see below). While there’s a breeze (from the northwest at around 10 mph at times), it’s not too cold with lows ranging from 33 in the colder suburbs to near 40 downtown.

Wednesday: It’s seasonably brisk. Sunshine is favored in the morning, but the combination of cool air streaming in at high altitudes and the strong March sun generates afternoon cloud cover. A brief sprinkle or shower cannot be ruled out (20-30 percent chance), but most spots are dry. Highs are mostly in the upper 40s (north and west) to the low 50s. Winds are from the west at 10-15 mph, with some gusts over 20 mph.

See Matt Rogers’ 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.


In this Sunday, March 10, 2013 photo taken with a 600-millimeter telephoto lens, comet Pan-STARRS appears between the clouds low in the western sky as seen from Harrells, N.C. (Johnny Horne/AP)

AccuWeather says this particular comet won’t be viewable after this week for 100 million years! See our blog post: Aloha! Comet Panstarrs: cosmic snowball to sneak above our horizon for more infomation. Bob Ryan of WJLA also has some good viewing tips.

Jason is currently the Washington Post’s weather editor. A native Washingtonian, Jason has been a weather enthusiast since age 10.

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