July 20 National Weather Roundup

By: associated press
By: associated press

National Weather Summary for Monday July 20

High pressure brought cool and pleasant conditions to the
Northeast in the wake of Saturdays cold front. Showers and isolated
thunderstorms popped up across the Michigan, Indiana and Ohio
before diminishing by dark but the rest of the Northeast was dry.
Temperatures started off quite cool from the Mid Atlantic region to
the northern Gulf coast states where a number of new record lows
were reached, some including: Jackson, KY (54); Martinsburg, WV
(53); Baltimore, MD (57); Muscle Shoals, AL (57); Macon, GA (58);
and Charlotte, NC (60). Thunderstorms affected much of Florida
through the day with some of these turning severe across southern
portions of the state during the afternoon. Wind gusts estimated
between 60-70 mph caused minor damage in and around the Everglades.
Across the central US, unseasonably cool weather continued across much of the region with several new record lows established. These records are too many to list all but a few notables:
International Falls dipped to 37 which broke their old record by 6
degrees and Kansas City, MO dropped to 54, breaking their old
record of 59. Rain and thunderstorms were mostly confined to
northern and eastern Texas on Sunday. Strong to severe storms were
experienced across much of eastern Texas including some quarter to
golf ball size hail reports across the Dallas suburbs. Other
thunderstorms began moving out into the northern high Plains late
in the day. Southern Texas still held onto the heat with record
highs tied in Corpus Christi and Brownsville and broken in McAllen
at 106.
Across the West, isolated to scattered thunderstorms developed over all but the Pacific Northwest during the afternoon hours with this activity continuing into the evening. Strong wind gusts in
Thermopolis, Wyoming felled several cottonwood trees in Hot Springs
State Park. Strong thunderstorm winds in southwest Arizona near
Gila Bend brought down numerous power polls along Highway 85.
Besides these two severe reports, thunderstorms were rather tame
across the region. Areas that didn't experience thunderstorms were
likely very hot as most of the west sizzled again on Sunday. New
record high temperatures were recorded in California, including:
Hanford (107); Merced (109); Bakersfield (111); and Fresno (112).

HIGHEST TEMPERATURE (DEGREES F)............126 Death Valley, CA
HIGHEST HEAT INDEX (DEGREES F).............126 Death Valley, CA
LOWEST TEMPERATURE (DEGREES F)..............33 Embarrass, MN
LOWEST WIND CHILL (DEGREES F)...............33 Embarrass, MN
HIGHEST WIND GUST (MPH).....................70 Fort Pierce, FL

In 1930, Washington D.C. broke an all time record high with a temperature of 106. 1930 was a very hot and dry summer across much of the US with records for highest temperatures ever broken in three other states later in the month.
In 1987, severe thunderstorms ravaged the Upper Midwest from Minnesota to Michigan with strong winds and heavy rain. Across the Twin Cities, 7.83 inches of rain was reported in 6 hours at Chaska, MN and 9 inches of rain fell at Shakopee, MN.
In 1989, thunderstorms across the Lower Mississippi Valley brought 5.50 inches of rain south of Alexander, Arkansas in just 90 minutes. The resultant flash flood unfortunately took the life of
one women.
DTN/Meteorlogix: J Sullivan

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