Weather Data For Wednesday

WEATHER EXTREMES FOR YESTERDAY: HIGHEST TEMPERATURE (DEGREES F)............95 Tucson, AZ ............................................. Laredo, TX HIGHEST HEAT INDEX (DEGREES

Thursday, October 11th 2007, 5:46 am

By: News On 6

WEATHER EXTREMES FOR YESTERDAY:

HIGHEST TEMPERATURE (DEGREES F)............95 Tucson, AZ

............................................. Laredo, TX

HIGHEST HEAT INDEX (DEGREES F)............105 Key West, FL

LOWEST TEMPERATURE (DEGREES F).............25 Bryce Canyon, UT

LOWEST WIND CHILL (DEGREES F)..............18 Dickinson, ND

HIGHEST WIND GUST (MPH)....................65 Potter, TX

HIGHEST PRECIPITATION (INCHES)...........1.21 Redding, CA

NATIONAL WEATHER SUMMARY:

Yesterday in the East, a closed area of low pressure brought persistent showers to the Great Lakes region as it slowly drifted southward. Rainfall amounts with this activity were generally light. Showers also impacted a few areas in the Northeast, with light rainfall. A few thunderstorms impacted portions of southern Florida as well, with a waterspout reported near Key West, Florida. Lingering showers came to an end in the Mid-Atlantic and Southeast as the cold front pushed offshore. Fair and relatively cool and dry conditions were present in the Ohio and Tennessee Valleys.

In the Central states, breezy and cool conditions were prevalent across the Upper Midwest. Winds over 25 miles-per-hour, with gusts to near 40 miles-per-hour were reported for many areas. Cool and dry conditions under clear skies were observed for the Mid-Mississippi Valley, and the Northern and Central Plains. Relatively mild conditions were reported across the Lower Mississippi Valley and the Southern Plains.

In the West, an upper level disturbance brought thunderstorms to the Southern High Plains and the Southern Rockies. A few storms became severe, producing damaging wind gusts, hail, and frequent lightning. Hail over one inch in diameter was reported near Amarillo, Texas, and near Campo, Colorado. A thunderstorm wind gust up to 65 miles-per-hour was observed near Bushland, Texas. Further north, a low pressure system brought showers to the Northern Rockies and Pacific Northwest, with rainfall generally light. Elsewhere, conditions were breezy for the Central Rockies and Great Basin, while the Desert Southwest and California saw clear to partly cloudy skies.

ON THIS DATE IN HISTORY:

In 1846, The Great Key West Hurricane struck the Florida Keys. Key West was virtually destroyed as 5 feet of water flooded the city, and two major lighthouses were destroyed by the storm.

In 1954, extreme flooding occurred along the Chicago River. 6-point-72 inches of rain fell in 48 hours, with some places reporting ten inches of rain in the Chicago area. Flooding damage totaled 10 million dollars.

In 1987, cold temperatures impacted the Upper Midwest. 30 cities set record lows for this date. The mercury dropped to 16 degrees in Scottsbluff, Minnesota, and Waterloo, Iowa.

FRONTS ACROSS THE NATION

A cold front reaches across New York, eastern Pennsylvania, Maryland, Virginia, North Carolina, South Carolina, Georgia, southern Alabama, southern Mississippi, northern Louisiana, northeastern Texas, and southwestern Oklahoma.

A stationary front sits over the Panhandle of Texas, the Panhandle of Oklahoma, Colorado, eastern Wyoming, and southeastern Montana.

A cold front spans across western Wyoming, Utah, and southern Nevada.

A cold front lingers over southeastern Virginia, eastern North Carolina, eastern South Carolina, and northern Florida.

NATIONAL WEATHER FORECAST

East of the Mississippi Valley, an upper level trough and cold front are expected to bring scattered showers and thunderstorms and mostly cloudy skies to the Northeast and Mid-Atlantic. Rainfall totals are expected to be around a quarter of an inch with locally higher totals of a half inch possible in some locations. The Ohio Valley and Great lakes should expect to see variably cloudy skies and only an isolated showers or two with rainfall totals near a trace. Meanwhile, the Tennessee Valley and Southeast will experience partly cloudy skies and dry conditions. Highs will be in the 40s and 50s in the Great Lakes; the 50s and 60s in the Northeast, the Mid-Atlantic, and the Ohio Valley; the 60s, 70s, and 80s in the Tennessee valley and Deep South; and the 80s and 90s in Florida.

Across the western two-thirds of the Nation, a narrow upper level trough and tropical moisture will bring a few isolated afternoon showers to parts of the Plains. Rainfall values are expected to be under a tenth of an inch. Isolated showers are also possible across northern California and the Pacific Northwest as a low pressure system wobbles around offshore. Morning coastal fog is expected across California and the Pacific Northwest and may reduce visibilities to less than a quarter of a mile before clearing out towards late morning. Elsewhere, highs pressure is expected to remain in control of the Mississippi Valley, the Rocky Mountains, the Great Basin, and the Desert Southwest. Today's highs will be in the 40s, 50s, and 60s in the Upper and Middle Mississippi Valley, the northern Plains, and the Pacific Northwest; the 60s and 70s in the central Plains and Rocky Mountains, the Great Basin, and California; and the 70s, 80s, and 90s in the Lower Mississippi Valley, the southern Plains and Rocky Mountains, and the Desert Southwest.

Prepared by WeatherBank, Inc.