PM Update: Very hot again Wednesday, small chance for a storm

Temperature Map

Temperatures: Latest D.C. area temperature map. See interactive map on our Weather Wall.

Following today’s record-setting heat, we may repeat the experience tomorrow (although the records are slightly higher and difficult to achieve).  Humidity levels remain high and it will feel like 100 in the afternoon.  Storm chances tick up slightly, but are still isolated as opposed to widespread.

Through Tonight: Radar is clear and any storm activity which has tried to get going to our west has been crushed by the high pressure and relatively stable air overhead.  So the chance of storms is just 10 percent if that.  Suffice to say it’s muggy overnight, with lows from the upper 60s in our cooler suburbs to the mid-70s downtown under partly cloudy skies.  Winds are light.

Tomorrow (Wednesday): It’s close to a carbon copy of today.  A few spots may even be a degree or two warmer.  Under partly sunny skies, highs reach the mid-90s, with heat indices topping 100 (dew points near 70).  Winds are from the west around 10 mph.  By late in the afternoon and into the evening, there’s a 30 percent chance of isolated to scattered thunderstorms.

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Model forecasts for Wednesday’s forecasts highs:

European model: 91-95

European model forecast (WeatherBell.com)

European model forecast (WeatherBell.com)

GFS model forecast: 90-95

GFS forecast (WeatherBell.com)

GFS forecast (WeatherBell.com)

NAM model forecast: 92-97

High resolution NAM forecast (WeatherBell.com)

High resolution NAM forecast (WeatherBell.com)

 

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D.C. sets new heat record for date, 97 degrees