Nov 19 National Weather Roundup

By: associated press
By: associated press

Weather Summary Thursday November 19, 2009

NATIONAL WEATHER SUMMARY:
Across the eastern half of the country, a slow moving low
pressure system will slide across the lower Great Lakes with a
leading cold front bringing rain from western New York through the
Mid Atlantic region and eastern North Carolina. An occasional
thunderstorm is possible but rainfall will be generally light for
most areas with a half inch or less expected. High pressure will
keep the lower Mississippi Valley and Southeast regions dry today
with seasonal temperatures. A few thunderstorms will develop late
in the day across southern Texas with rain and thunderstorms
expanding across southern and central Texas tonight. Occasional
light rain and drizzle will persist across the western Great Lakes
today. Mostly sunny and pleasant weather will continue across the
central and northern Plain states with temperatures remaining above
normal.
Another strong Pacific system is battering the Northwest with heavy rain, mountain snow and gusty winds. Rainfall of 1-2 inches
is likely across northwest Oregon and western Washington today with
additional 6-12 inches of snow expected across the mountains. Snow
levels are currently near 2500ft but will rise to 4000ft by this
afternoon with some snow amounts exceeding a foot at these higher
elevations of the Olympics and northern Cascades. Winds have been
gusting over 50 mph along the coast but will ease today across the
region as cold front moves onshore. The heavy precipitation across
western and northern Washington will maintain an avalanche threat
along with continued river flooding for the area. The remainder of
the west will be quiet today with high pressure in control from
Montana to the Southwest and Four Corners region. Temperatures will
be cooler than recent days across Montana but will still trend
above normal. Normal to slightly above normal temperatures can be
expected across the Southwest with plenty of sunshine.

WEATHER EXTREMES FOR YESTERDAY:
HIGHEST TEMPERATURE (DEGREES F).............88 Miami, FL
HIGHEST HEAT INDEX (DEGREES F)..............88 Miami, FL
LOWEST TEMPERATURE (DEGREES F)..............-3 Lake George, CO
LOWEST WIND CHILL (DEGREES F)...............-4 Laramie, WY
HIGHEST WIND GUST (MPH).....................56 Friday Harbor, WA
HIGHEST PRECIPITATION (INCHES)............0.53 Dayton, OH

ON THIS DATE IN HISTORY:
In 1930, an unusually strong late season F4 tornado tore a 7 mile path across the Oklahoma City metro area killing 23 people.
This tornado is ranked 9th on the list of the ten most deadly
Oklahoma tornados.
In 1981, an early season winter storm dumped as much as a foot of snow across the Minneapolis, Minnesota area. The newly inflated fabric roof of the Metrodome ripped and collapsed under the weight of the heavy snow.
In 2003, heavy rain with amounts of up to 8 inches fell across the central Appalachians and Mid Atlantic regions. The resultant
flooding caused 11 fatalities.

Telvent DTN: J Sullivan


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