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PM Update: Showers and storms around tonight, turning nicer tomorrow

Radar & lightning: Latest D.C. area radar shows movement of precipitation and lightning strikes over past two hours. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

8:25 p.m. Update: A general area with heavy showers and perhaps a bit of thunder moves east through the metro area over the next couple hours. So far there are no severe warnings, just heavy rain and some gusty breezes. The rain looks to last an hour or so for any given location, and could very well disrupt the Nats-Phillies game at Nationals Park.

From 4:45 p.m. … Our third day with a high of 90 or greater has hit the books here in D.C., but thankfully the humidity was fairly bearable. Clouds have increased late today as a shower and storm threat works its way toward us for tonight. Severe weather odds are low though, and rain is gone for most or all daylight hours tomorrow.

Through Tonight: Shower odds are up as we get deeper into rush hour, but most activity should hold off until late evening and later — we’re talking first arrival in the 7 to 11 p.m. range or so. There’s still some question as to how much thunderstorm activity we’ll see, but scattered to numerous shower odds are best (70% chance) overnight. The strongest storm activity may focus south of the area where there is more instability. Any showers or storm could contain gusty winds and briefly heavy rain. Lows are mainly in the 60s, perhaps as low as the low 60s in cooler spots and maybe nearer 70 downtown depending on when the wind shift to cooler air makes it in.

Tomorrow (Thursday): Some clouds and maybe even showers last into the early morning, but we trend clearer as the sun rises higher. Overall, a fairly nice day for June featuring relatively low humidity and temperatures only in the near 80 to low 80s range. Winds are from the northwest around 10 to 15 mph.

See Dan Stillman’s forecast through the weekend. And if you haven’t already, join us on Facebook and follow us on Twitter . For related traffic news, check out Dr. Gridlock.

Ducks in Dupont Circle. (angela n. via Flickr)

Pollen update: Tree pollen is moderate at 36.74 grains/cubic meter of air, with pine the biggest contributor. Grass pollen is high, mold spores are moderate/high, and weed pollen is low.

Tropics: Tropical Storm Boris in the eastern Pacific ran aground yesterday and has since been devalued to “remnants of.” It still caused a good deal of rain and some flooding as it came ashore in southern Mexico.


Just to the north of where Boris made landfall, but on the Atlantic side in the Bay of Campeche, a messy area of low pressure has remained fairly unorganized today. The National Hurricane Center gives this system only a 20 percent shot at forming into a tropical cyclone in the next 2-5 days, thanks largely to strong upper level winds.

Ian Livingston is a forecaster/photographer and information lead for the Capital Weather Gang. By day, Ian is a defense and national security researcher at a D.C. think tank.
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Jason Samenow · June 4, 2014

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