CommuteCast: Clear Skies Lead to Cold Night
Protect your plants! Last freeze threat of the season?
*3 a.m. to 8 a.m: Freeze Warning W of I-95, Frost Advisory E of I-95*
After this morning's chilly start, sunshine has warmed the area into the upper 50s. Light northerly winds are slowly weakening as high pressure builds into the region. Today's drive home will be dry with clear skies.
Tonight: April 15 is the beginning of the growing season in and around D.C., and right on cue, we are expecting very cold (for mid-April) conditions overnight. Clear skies and slackening winds will allow for prime radiational cooling. Expect lows to drop to the upper 20s to right around 30 north and west of the District, and into the mid or low 30s south and east of the city. D.C. itself will likely be spared both a frost and freeze, with temperatures staying in the mid to upper 30s, thanks to the ever-present urban heat island effect.
Tomorrow: Following a frosty or frozen start in many places, warming will continue in earnest tomorrow as highs reach the mid to upper 60s across the area with light winds. Expect mostly sunny conditions throughout the day as high pressure dominates.
See Matt's forecast through the weekend, and PopeCast for Thursday's Papal Mass at Nationals Park.
By Ian Livingston |
April 15, 2008; 3:00 PM ET
Forecasts
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Posted by: Kenny L. | April 15, 2008 4:08 PM
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Kenny L. -- I agree, there's something refreshing about those crisp mornings followed by warm afternoons. The morning-to-afternoon temperature swing can be really impressive when the air is as dry as it is right now, as much as 35-40 degrees in the outlying suburbs.
Posted by: Dan, Capital Weather Gang | April 15, 2008 4:14 PM
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Currently at 2pm in Boulder, CO, we have an air temperature of 78, an exceptionally low dew point of 8 degrees and a relative humidity of 7%...Oh, and we're expecting 1-3" of snow tomorrow night as a very strong cold front barrels through tomorrow!
Posted by: Josh, Capital Weather Gang | April 15, 2008 4:27 PM
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I thought the weather channel made a mistake when they said that the low for Arlington would be around 28 degrees tonite.
Posted by: Period | April 15, 2008 9:14 PM
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28 in arlington is a mistake. it will probably be around 35-38. 28 might happen in the far western suburbs though.
Posted by: jf | April 15, 2008 10:36 PM
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this seriously is one of the best blogs around. I never knew the weather could be so interesting. You guys do a great job!
Posted by: U Street-er | April 15, 2008 10:47 PM
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Thanks U Street-er. We appreciate the kind words, and hope you'll spread the word about CWG.
Posted by: Dan, Capital Weather Gang | April 15, 2008 11:28 PM
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The comments to this entry are closed.
Looking forward to the nice weather. I like when it starts cold, though...seems more pronounced in the fall though when we have those nice crisp mornings turning to a warm afternoon.