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September 30 National Weather Roundup

By: associated press
By: associated press

Weather Summary for Wednesday Sept. 30, 2009

NATIONAL WEATHER SUMMARY:
Across the East, low pressure spun across southeast Canada and brought occasional rain showers to the region on Tuesday. Most of the showers tracked across New York and the New England states avoiding the bigger cities along the coast. Rainfall amounts were generally a quarter inch or less but some locations downstream of Lakes Erie and Ontario picked up a half inch or more. The tail end of an Atlantic cold front dropped south through northern Florida and brought some occasional thunderstorms in and around the
Titusville area during the afternoon but it was nothing major. Dry
and quiet weather was experienced across the Mid Atlantic, Ohio
Valley, Tennessee Valley and Deep South regions.
Over the Central U.S., showers lingered across the western Great Lakes during the first part of the day before diminishing. To the west of here some of the coldest air of the season was felt across much of the Upper Midwest resulting in the first frost or freeze
across portions of the eastern Dakotas and western and northern
Minnesota. Pierre, S.D. was one location that had its first freeze
as the temperature dropped to a record tying low of 29. Sunshine
and southerly winds returned to the Dakotas and allowed
temperatures to warm 40 degrees or more over portions of the region
by afternoon, including Pierre which reached a high of 69. Dry and
pleasant weather was in place across the remainder of the region
with the exception of southern Texas which had some showers and
thunderstorms in the area through mid afternoon.
Across the western states, the most notable weather on Tuesday was in the Northwest as a cold front moved into the region. This Pacific cold front brought valley rains and scattered high
elevation snows to portions of the Cascade and Olympic Mountains. A
few thunderstorms also formed along front with one storm just to
the east of Bend, Ore. producing quarter inch hail. Shower activity
was advancing east between western Montana and northern Nevada by evening. Dry and warm weather remained ahead of front from eastern Montana to the Four Corners and Southwest through the day. Record highs were tied in Helena, Mont. (84) and Tucson, Ariz. (101) and broken at Grand Canyon North Rim (82) and at Bisbee-Douglas (96).

WEATHER EXTREMES FOR YESTERDAY:
HIGHEST TEMPERATURE (DEGREES F)............108 Bullhead City, Ariz.
HIGHEST HEAT INDEX (DEGREES F).............108 Bullhead City, Ariz.
LOWEST TEMPERATURE (DEGREES F)..............19 Pahaska, Wyo.
.............................................. Shirley Basin, Wyo.
.............................................. Upton, Wyo.
.............................................. Senaca, Ore.
LOWEST WIND CHILL (DEGREES F)...............18 Seneca, Ore.
HIGHEST WIND GUST (MPH).....................52 Reno, Nev.
HIGHEST PRECIPITATION (INCHES)............0.84 Erie, Pa.

ON THIS DATE IN HISTORY:
In 1961, an unusual early season snow storm brought 4 inches of snow to Mankato, Minn. Snow also fell in Omaha, Neb. which was the first time snow fell in September there in 70 years.
In 1959, the remnants of Hurricane Gracie spawned 3 tornadoes form in and around Ivy, Va. One tornado was estimated at F3 on the Fujita scale and killed 11 people in Ivy.
In 1986, flooding rains across northern portions of Oklahoma the day before shifted southward bringing 4-8 inches of rain between Shawnee and Stilwell. Baseball size hail and damaging winds tore through parts of Oklahoma City and Shawnee with more than a
half-million dollars damage reported.

Filed by: Telvent DTN


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