Muggy, scattered showers. Increased humidity arriving last night and temperatures soaring to at least 96° by noon prompted a Heat Advisory to be issued for the Washington metro region around lunch time. Scattered thunderstorms popping up in the early afternoon quickly dropped temperatures 20° or more in some places, however, causing the Heat Advisory to be cancelled by 4pm. Although National Airport got about ¼" of rain, Dulles remained dry and many other areas north and west of the Beltway had nothing more than the rumble of thunder.
Real heat relief, in the form of a strong cold front for the season, is still on tap for Thursday, and it should last into the weekend.
Tonight and Tomorrow
Muggy, chance of thunderstorms decreasing, then increasing. The chance of showers or thunderstorms will decrease this evening, but it will remain muggy under mostly cloudy skies. Lows should be in the upper 70s downtown to the low 70s in the 'burbs. Tomorrow will be muggy with variable cloudiness and an increasing chance (50%) of showers and thunderstorms in the afternoon and evening. Highs will be 89-93°.
For the outlook through the rest of the week and into the weekend, scroll on down to Matt's post below.
Keeping Cool: WaPo Chat
A transcript of today's CapitalWeather.com discussion on the heat and its effects is posted at the online WaPo.
As the analysis of the Proenza affair at the National Hurricane Center continues, the prize for the best headline has to go to . . .
"The 'Cane Mutiny".