Weather Summary Wednesday, September 23, 2009
NATIONAL WEATHER SUMMARY:
In the East, isolated showers developed through the Mid-Atlantic and eastern Ohio Valley ahead of an upper level impulse. Light
rainfall amounts were reported here. Meanwhile, a stronger frontal
boundary pushed through the Great Lakes, western Ohio Valley,
western Tennessee Valley, and Deep South. Strong and somewhat heavy showers and thunderstorms pushed through these areas as a result, providing rainfall amounts of 1-2 inches. In addition, increased
moisture and southeasterly flow brought showers and thunderstorms
to Florida, southeastern Georgia, and the eastern Carolinas
throughout the day and evening hours. Light to moderate rainfall
amounts were reported here.
Across the central portion of the country, a upper level low pressure system continued to bring wrap around moisture to the
Central Plains. Light to moderate rain showers, and even a few
higher elevation snow showers, fell across South Dakota, Nebraska,
Kansas and Colorado. Light snowfall accumulations occurred
overnight through the eastern slopes and foothills through central
Colorado, though elevations of 7000 feet and above were expected to
receive moderate to heavy accumulations. Meanwhile, a lingering
front pushed into the western Gulf of Mexico, and showers and
thunderstorms brought heavy rainfall to southeastern Texas. Austin,
Texas received 2.39 inches of rainfall.
In the West, chilly conditions set in across the Rockies under an upper level trough. Many areas through Wyoming, Colorado, and New Mexico only reached high temperatures in the 50s and lower 60s. Otherwise, dry conditions and steamy temperatures were experienced along the West Coast as high pressure remained a dominating feature through the region. Thermal, California topped out at 106 degrees.
WEATHER EXTREMES FOR YESTERDAY:
HIGHEST TEMPERATURE (DEGREES F)............106 Thermal, CA
HIGHEST HEAT INDEX (DEGREES F).............108 McAllen, TX
LOWEST TEMPERATURE (DEGREES F)..............20 Big Piney, WY
LOWEST WIND CHILL (DEGREES F)...............14 Leadville, CO
HIGHEST WIND GUST (MPH).....................59 Kane Springs,
HIGHEST PRECIPITATION (INCHES)............2.39 Austin, TX
ON THIS DATE IN HISTORY:
In 1933 - Snowshoe, WV experienced their earlier measurable snowfall ever.
In 1904 - Charlotteburg, NJ woke up to a temperature reading of 23 degrees. This was the coldest temperatures officially recorded so early in the season for the state.
In 1998 - From August 19th until September 23rd, 10 named tropical cyclones formed in the Atlantic. Four of these made
landfall in the United States. This was a span of only 35 days.
Filed by: Telvent DTN