In the wake of this spate of severe weather, calm has returned. And
what a delightful calm it is. Temperatures have dropped to seasonal or
slightly below seasonal values across much of the eastern U.S., skies
have turned fair to partly cloudy and, most importantly perhaps, dew
points have tumbled. There’s nothing quite like a day with temperatures
in the 70’s or 80’s with dew points in the 40’s.
Monday, September 10, 2012
For much of the eastern U.S., autumn calm replaces spring-like severe weather
Following a major severe thunderstorm outbreak (Sept. 7 and
Sept. 8) that stretched from the southern Plains to the East Coast,
cooler and drier weather has moved in across much of the eastern half of
the Nation. The Storm Prediction Center
received more than 625 reports of winds above 58 miles per hour (the
threshold for a severe thunderstorm) or associated wind damage during
the 48-hour period ending at 8am E.D.T. on September 9 (Fig. 1). There
were also nearly 60 hail reports (some as large as 2.75 inches in
diameter) and a couple of waterspouts that were reclassified as tornadoes, because they come ashore, in Queens, NY.
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Ava Gordy
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