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Afternoon update

Steve Scolnik @ 3:15 PM

After some mostly light showers moved through northern parts of the Washington DC region around noon, the muggometer is dialed up to near the "sauna" level: temperatures in the mid to upper 80s, dewpoints in the mid 70s. Unusually, our anomalous airport tied the highest reading in the region with 91 degrees at 4pm. With the sun cooking this murky mess and a cold front approaching from the Ohio Valley, showers and thunderstorms are likely to break out in at least some locations around the area this afternoon and evening. In fact, by mid afternoon, scattered storms, with small areas of moderate to heavy rain, were located along I-81 from the eastern panhandle of West Virginia to southwestern Virginia. The area of storms which moved through here earlier expanded and intensified as it moved northeastward and was over eastern Pennsylvania and northeastern Maryland. There was also an area of showers and storms over the mid portion of the Chesapeake Bay.

At 4pm, a storm with some heavy rain was moving eastward through Loudoun County. Lighter rain extended northeastward across the river into far western Montgomery County. So far, the heaviest rain has been south of the Dulles Greenway/Toll Road. This storm has me personally nervous, since it won't be before tomorrow that I get my gutter replaced; it was ripped down by about 25 feet of 37-year-old white pine in the "slight risk" of severe weather last Friday night. This gutter would be the one that keeps the window wells in the back of the house from flooding the basement. Memo to the roofing and insurance industries: THE WEATHER DOES NOT TAKE A VACATION FOR THE FOURTH OF JULY!


There is a 60% chance of showers through this evening; lows should be in the lower 70s. Partly cloudy skies, highs in the upper 80s, and a bit lower humidity are on tap for tomorrow.

Tropical Topics

As Jason has already said below, our active early tropical season is perking right along. The National Hurricane Center reports that this is the earliest date on record for the fourth named storm to have formed in the Atlantic region. T.S. Cindy (nee TD3) is headed northward toward the central Gulf of Mexico coast. As of the 2pm advisory,
"A tropical storm warning is in effect from Morgan City Louisiana eastward to Destin Florida...and a tropical storm watch is in effect east of Destin to Indian Pass Florida."
Maximum sustained winds were estimated near 60 mph with higher gusts.

Meanwhile, Cindy's brother Dennis is moving west-northwestward through the eastern Caribbean, about 335 miles south-southwest of San Juan, Puerto Rico. Maximum sustained winds were 40 mph as of 2pm and
"A tropical storm watch is in effect for the south coast of the Dominican Republic from Barahona westward...and for the southwest peninsula of Haiti from the Dominican Republic border and Port-au-Prince westward."
Dennis shows the potential to intensify into a hurricane as it approaches Jamaica and western Cuba late in the week, headed for the southeastern Gulf of Mexico.

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