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Thunderous Tuesday possible, but is it unusual for DC?

Mother Nature is rolling out the red carpet to spring weather in the D.C. area this week, with thunder, wind and record heat in the cards. Though some may feel as though it’s too soon for afternoon rumbles and milder temperatures, the spring-like conditions aren’t unheard of for late February in the D.C. region.



Heat

Record winter warmth happens occasionally in D.C., so that’s not out of the ordinary. Take Thursday’s forecast high in the upper 70s to low 80s. The previous record we are challenging on Thursday occurred just last year when Reagan National Airport climbed to 77 degrees.

Thunder

What about thunder rumbles in February? A front heading for the Mid-Atlantic Coast Tuesday afternoon promises to trigger a thunderstorm or two from D.C. north into Pennsylvania. One or two storms from Philadelphia to New York City could actually generate gusty winds. The National Weather Service in Sterling, Virginia, issued a wind advisory for much of the D.C. area until 7 p.m. Tuesday, warning of sustained winds from the west of 20-35 mph with gusts up to 50 mph.

Turns out, February thunderstorms have happened in the past in D.C. Digging back through observations at Reagan National Airport since the early 1970s, thunder has been noted in late February (specifically, during the year’s eighth week) in eight previous years. Those years include 1990, 1998, 2000, 2003, 2007, 2012, 2016 and 2017.

Thunderstorms reported by week of the year and hour of the day at Reagan National Airport from 1971 to 2022. (Courtesy of IEM).
Snowfall in those winters was quite variable, so thunder in February can’t be connected to a snowless winter in D.C. Historically, thunderstorms are most common between 4 and 8 p.m. from mid-June to mid-July. Stay tuned to WTOP for the latest on the changeable weather with forecast on the 8’s.

Swampy summer: Showers set to move in — with ‘stickiness factor’

The first half of the year has been historically dry. In fact, so far 2023 has been the fifth-driest year on record in Maryland since 1895. As relief began with showers on Wednesday, the weekend looks to bring more rain and swampy humidity. Showers are set to continue rolling in Thursday evening with an "increasing stickiness factor," said 7News First Alert meteorologist Steve Rudin.
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