National Weather Summary for Tuesday April 21, 2009
NATIONAL WEATHER SUMMARY:
Across the East, a low pressure system brought rain to the Northeast, with scattered showers and thunderstorms from the
Mid-Atlantic to northern Florida. During the afternoon some of
storms produced hail and strong wind gusts across Virginia, North
Carolina, and eastern South Carolina. Large hail busted out
windshields on I-85 in North Carolina. There was one possible
tornado touchdown, 2 miles southwest of Moonlight, Va. Rainfall
totals were generally between a quarter inch and three quarters of
an inch, but isolated areas received over one inch of rain. Rain
amounts were heavy in the Delmarva region. Baltimore picked up 1.23
inches while Atlantic City, N.J. picked up 1/35 inches, a new
record for them yesterday. Dry weather prevailed over most of the
Tennessee Valley and Deep South, although isolated showers did
develop in central and eastern Tennessee overnight.
Over the mid-section of the nation, a low pressure system
stalled out across the Great Lakes, spreading plenty of showers
across Michigan, Wisconsin, Minnesota, as well as Illinois and the
Ohio Valley yesterday. A few isolated afternoon thunderstorms we
noted across Illinois, however, no severe weather was reported.
Rainfall amounts were heaviest across Michigan and Wisconsin where
moderate rains persisted through the day and continued overnight.
Milwaukee picked up 0.70 inches while Green Bay reported 0.81
inches. Alpena, Mich. reported a new record of 0.90 inches
yesterday. Heavy snows fell through the period across northern
Wisconsin and Upper Michigan. Most areas have reported 3 to 8
inches, however, areas in Houghton and Ontonagon counties of
Michigan reported up to 11 inches with additional amounts falling
Across the west, dry weather prevailed and so did the record warmth. More record highs were reported across California, Nevada, Oregon, and Washington. Downtown Los Angeles topped out at 100 degrees, breaking the old record of 96 degrees back in 1958. Long Beach, Calif. also reported and new record high of 100 degrees. The San Francisco Bay area also notched some record highs yesterday. Oakland came in with a 91 degree reading, shattered the old mark of 79 degrees. Even Seattle-Tacoma set a record with 74 degrees. At least one more day of warm weather is expected across the west.
WEATHER EXTREMES FOR YESTERDAY:
HIGHEST TEMPERATURE (DEGREES F).............105 Death Valley,
HIGHEST HEAT INDEX (DEGREES F)...............95 San Diego,
LOWEST TEMPERATURE (DEGREES F)...............18 Houlton, Maine
LOWEST WIND CHILL (DEGREES F)................18 Houlton, Maine
HIGHEST WIND GUST (MPH)......................63 Pottstown, Pa.
HIGHEST PRECIPITATION (INCHES).............1.54 Detroit, Mich.
ON THIS DATE IN HISTORY:
In 1967, 48 tornadoes touched down across the Upper Midwest. Northern Illinois was the hardest hit. Sixteen tornadoes touched down during the afternoon and evening hours. One tornado struck Belvidere, Ill. and the Chicago suburb of Oak Lawn, killing 57
In 1989, Las Animas, Colo. set a new state record for April as temperatures topped out at 100 degrees. In all, twenty-two cities across the central and southwestern U.S. reported new record highs for the date.
In 1990, severe thunderstorms produced golf ball size hail at Roswell, N.M. and El Paso, Texas.
Filed by DTN-Meteorlogix
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