The Washington Post

Heat spike: Temperature may surge 30 degrees in 6 hours today

It’s foggy, clammy, and cool this morning.  The 9 a.m. temperature at Reagan National was just 60 degrees.  But an impressive plume of heat is poised to charge into the region this afternoon. The entire region should rocket into the 80s and a few spots southwest of town could even flirt with 90.

Here’s an animated simulation of temperatures at 10 a.m., noon, 2 p.m. and 4 p.m. in the D.C. region from the HRRR model:


(WeatherBell.com)

It may be a little aggressive with its forecast, but 80s seems like a safe bet this afternoon despite the deceptive cool air this morning.

Here’s the high resolution NAM model forecast for 4 p.m. this afternoon which shows widespread mid-80s.


(WeatherBell.com)

Do note, however, there’s a fairly sharp cutoff in the toasty temps toward the Mason Dixon line.  Locations in northern Maryland and southern Pennsylvania may hold in the upper 70s today as the warm front is hung up in that region.

 

Jason is the Washington Post’s weather editor and Capital Weather Gang's chief meteorologist. He earned a master's degree in atmospheric science, and spent 10 years as a climate change science analyst for the U.S. government. He holds the Digital Seal of Approval from the National Weather Association.
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At a Glance

Sat.

partlycloudyday
30° /44°

Sun.

partlycloudyday
31° /49°

Mon.

sleet_rain
32° /44°
Drop 40%

Tue.

sleet_rain
32° /39°
Drop 70%

Wed.

partlycloudyday
28° /37°

Thu.

partlycloudyday
22° /35°
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