The same cold front that sparked damaging thunderstorms across the Northeast Monday will continue affecting the mid-Atlantic into Thursday. Its impacts on people across the region will be both positive and negative.
Heavy rain and thunderstorms will develop along this front late tonight into Thursday morning, disrupting travel and threatening localized flash flooding. Rainfall totals are expected to reach 1 to 2 inches with locally higher amounts possible.
Areas from Washington, D.C., and Baltimore, Md., to Richmond and Roanoke, Va., are at risk. People in these areas should be prepared for a slow commute right off the bat Wednesday morning. Airline passengers should also anticipate delays.
Flash flooding in not expected to be a widespread problem but could impact a few communities by Wednesday night or Thursday morning. Low-lying and poor drainage areas are especially susceptible.
Despite these short-term problems, many people will actually welcome the stormy weather. Much of the mid-Atlantic is in a drought, and the rain will help put a dent in rainfall deficits.
The latest release from the U.S. Drought Monitor shows much of eastern Virginia and southeastern Maryland in a severe drought as of Aug. 10, 2010.
Since May 1, Richmond has only received 46 percent of its normal precipitation. Typically, about 14.5 inches of rain falls during this time frame. This year, the city has picked up less than 6.70 inches.
In addition, the stormy weather will provide some brief but significant heat relief. High temperatures in Washington, D.C., for example, will drop from the mid-90s Tuesday to the upper 70s Wednesday. The last time the nation's capital had highs in the 70s was early June!
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San Francisco will see a rise in temperatures over the next several days as partially cloudy skies make way for plenty of sunshine.
Another visit from the Polar Vortex will deliver unseasonably cool air to the Midwest, preceded by rounds of thunderstorms, including severe weather.
As the Northeast continues to clean up from destructive storms early this week, more rounds of severe weather loom for early next week.
Welcome dry weather for cleanup efforts across Japan in the wake of Neoguri will be brief.
Days after Neoguri takes a curved path over Japan and into the northern Pacific, much cooler air will drive southeastward across the Midwest and into the Northeast.
Hottest day ever: Baltimore (downtown), MD - 107, highest ever. Cumberland & Frederick, MD - 109 degrees, state record. Runion, New Jersey - 110 degrees, state record. Philadelphia, PA - 104 degrees, tied July record. Phoenixville, PA - 111 degrees, state record. Richmond, VA - 105 degrees, tied July record. Martinsburg, WV - 112 degrees, state record
Jefferson, IA (1955)
0.69 inches of rain in one minute.
A tornado tracked 17 miles through the Black Forest. Three people were killed and 1,780 homes were destroyed.