The Nation's Weather: Wednesday, August 5, 2009
NATIONAL WEATHER SUMMARY:
In the east, a cluster of showers and thunderstorms roared through Indiana, Ohio, northern Kentucky and West Virginia during the morning hours. Frequent lightning was a concern with this
cluster with over twenty-thousand strikes reported in the span of
just a few hours. Areas along I-65 from Seymour, Indiana to
Louisville, Kentucky reported some flash flooding with over 1 inch
of rain in under an hour in some spots. But if that wasnt enough, a
second batch of strong to severe thunderstorms rolled seemingly on
the same tracks as the first one during the early afternoon hours.
Numerous reports of high winds, heavy rains and excessive lightning
were associated with the second batch of storms. A few reports of
4.5 to 5.5 inches of rain were reported with this activity at
Louisville, Kentucky as well as a few surrounding areas near there.
Scattered showers and thunderstorms also occurred across portions
of the Gulf Coast and into Florida yesterday afternoon. A line of
scattered showers and thunderstorms also moved into western
portions of the Northeast late in the day.
Across the central portion of the country, a large complex of rain and thunderstorms shifted through the central states yesterday
morning. The mass of thunderstorms originated in Nebraska and
Kansas, then raced east through the pre dawn hours into northern
Missouri, extreme southern Iowa, and central Illinois. Numerous
reports of severe weather were associated with this cluster of
storms, with damaging winds being the most prevalent. Wind gusts
were estimated at near 70 mph near Fairview, Illinois, with reports
of trees and power poles down in west-central Illinois. Excessive
to near constant lightning was also found along the leading edge of
the cluster of storms, with over ten-thousand strikes in just over
one hour over some areas. Isolated showers and embedded
thunderstorms also moved across portions of eastern Wisconsin, with
generally light rainfall reported. Another cluster of thunderstorms
formed early yesterday evening, gaining strength over southwestern
South Dakota and northwest Nebraska. Several wind reports of 60 mph
were generally reported with this cluster and a report of an 80 mph
wind gust from this storm came in from Sheridan, Wyoming.
In the West, some isolated showers were found yesterday morning moving across Montana. Rainfall was generally light in this area with some strikes of lightning mixed in across eastern Montana. Isolated showers and thunderstorms formed once again during the afternoon hours across portions of Arizona and New Mexico
northwards to Oregon, Idaho, and Montana.
WEATHER EXTREMES YESTERDAY:
HIGHEST TEMPERATURE (DEGREES F)............117 Death Valley, CA
HIGHEST HEAT INDEX (DEGREES F).............117 Death Valley, CA
LOWEST TEMPERATURE (DEGREES F)..............36 Embarrass, MN
LOWEST WIND CHILL (DEGREES F)...............36 Embarrass, MN
HIGHEST WIND GUST (MPH).....................83 Echeta, WY
HIGHEST PRECIPITATION (INCHES)............5.50 Jeffersonville,
ON THIS DATE IN HISTORY:
In 1959, a 24 hour rainfall record for Iowa is set with 16.70
inches at Decatur County from August 5-6.
In 1961, Washington records its hottest temperature ever of 118 degrees at Ice Harbor Dam.
In 1989, winds gusts to 92 mph during a thunderstorm at Norfolk, NE.