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)

(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)

(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.

 

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D.C. area forecast: Becoming sunny and summery today; warm weekend but showery Saturday