The Nation's Weather

WEATHERBANK, INC EDMOND, OK TIME: 4:00 AM EDT DATE: 08/02/07 WEATHER EXTREMES FOR YESTERDAY: HIGHEST TEMPERATURE (DEGREES F)...........104 Redding, CA HIGHEST HEAT INDEX (DEGREES

Thursday, August 2nd 2007, 6:45 am

By: News On 6

WEATHERBANK, INC EDMOND, OK TIME: 4:00 AM EDT DATE: 08/02/07

WEATHER EXTREMES FOR YESTERDAY:

HIGHEST TEMPERATURE (DEGREES F)...........104 Redding, CA

HIGHEST HEAT INDEX (DEGREES F)............113 Chickasha, OK

LOWEST TEMPERATURE (DEGREES F).............33 Meacham, OR

LOWEST WIND CHILL (DEGREES F)..............33 Meacham, OR

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

HIGHEST PRECIPITATION (INCHES)...........3.54 Orlando, FL

NATIONAL WEATHER SUMMARY:

In the East, a trailing cold front produced scattered showers and thunderstorms across Florida, with more widespread activity developing throughout the afternoon due to daytime heating affects. Rainfall totals with this activity were generally light to moderate, with under a half inch reported across the majority of the state, and localized totals of up to three inches in some areas. Isolated afternoon showers and thunderstorms impacted portions of the Gulf coast and southern Appalachians late this afternoon before diminishing shortly after sunset. Conditions across much of the Carolinas, Southeast, Tennessee Valley, Ohio Valley, Middle Atlantic, and the Northeast remained dry throughout the afternoon and into the evening, under clear to partly cloudy skies.

Across the central third of the Nation, scattered showers and thunderstorms pushed further southeast into the southern half of the northern Plains in association with a cold front pushing through the region. Rainfall amounts attributed to this activity ranged from near a quarter of an inch in many locations, to over two inches in parts of Nebraska. To the south, scattered showers and thunderstorms continued to impact the central Plains throughout the evening. Rainfall became locally heavy at times, leading to several flash flood warnings for parts of central and southern Kansas, as well as portions of central Oklahoma. Scattered showers and isolated thunderstorms also impacted much of eastern Texas and southern Louisiana throughout the afternoon and evening, due to an outflow boundary positioned over eastern Texas and southwestern Oklahoma. Otherwise, dry and relatively mild conditions were felt across the Dakotas, much of the upper Midwest, and the upper and middle Mississippi Valley throughout the afternoon and evening.

In the West, showers and thunderstorms resumed this afternoon across much of the Desert Southwest, the southern and central Rockies, and the southern Great Basin in association with monsoonal flow. Periods of brief heavy rainfall and scattered lightning were the main concerns with this activity. Showers and thunderstorms slowly diminished near sunset, yielding partly cloudy skies and mild conditions overnight. Otherwise, clear to partly cloudy skies and dry, fair conditions continued across the northern Rockies, the northern Great Basin, much of California, and the Pacific Northwest as high pressure continued to dominate these regions.

ON THIS DATE IN HISTORY:

In 1989, the remnants of Hurricane Chantal dumped heavy rains across parts of Texas; 6-point-50 inches fell in Stephanie County, while 2-point-22 inches fell in Wichita Falls in just one hour.

In 1985, wind shear caused a Delta Air Lines jumbo jet to crash during its approach to Dallas/Ft. Worth International; 133 people were killed.

In 1954, golf ball size hail fell for 30 minutes in Kansas producing a drift that was 3 feet high, 70 feet wide, and 200 feet long.

FRONTS ACROSS THE NATION:

A stationary front is located over central Florida.

A cold front is moving through Wisconsin, Minnesota, South Dakota, Nebraska, northwestern Kansas, Colorado, Wyoming, and Montana.

NATIONAL WEATHER FORECAST:

In the East, expect partly cloudy skies with a chance for afternoon and evening showers and thunderstorms across the Southeast and Florida. A few stronger thunderstorms will be capable of producing frequent lightning, strong winds, sizable hail, and heavy downpours. Rainfall amounts of an inch will be possible. Elsewhere, partly cloudy skies and the chance for isolated thunderstorms can be expected across the Great Lakes region. Gusty winds, small hail, and rainfall amounts of a quarter of an inch will be possible with this activity. Otherwise, mostly sunny to partly cloudy skies and dry conditions will prevail throughout the Northeast, the Mid-Atlantic region, and the Ohio and Tennessee Valleys. High temperatures will reach into the 80s and 90s.

Across the central part of the country, a low pressure system will produce scattered showers and thunderstorms across the central Plains and into southern portions of the Upper Mississippi Valley. A few strong to severe thunderstorms will be possible, capable of producing frequent lightning, strong winds, large hail, and brief heavy downpours. Rainfall amounts of up to a half of an inch will be possible. Further south, widely scattered showers and thunderstorms will affect the southern Plains and the Lower Mississippi Valley. The main concern with this activity will be areas of flooding or flash flooding due to heavy rain. Rainfall amounts of one to three inches will be possible. Otherwise, high pressure will allow for fair skies and dry conditions through the northern Plains, the northern half of the Upper Mississippi Valley, and the Middle Mississippi Valley. High temperatures will reach into the 80s to near 100.

In the West, partly cloudy skies and the chance for afternoon and evening showers and thunderstorms can be expected across the high Plains, the Rocky Mountains, the Desert Southwest, the Great Basin, and eastern California. A few stronger thunderstorms may produce gusty winds and small hail. However, the main concern will be areas of flash flooding as rainfall amounts of a half of an inch to an inch may fall in a very short amount of time. Otherwise, fair skies and dry conditions will prevail through the Pacific Northwest and the western half of California. High temperatures will reach into the 60s and 70s along the coastal regions of both California and the Pacific Northwest; and into the 80s to the lower 100s through the high Plains, the Rocky Mountains, the Desert Southwest, the Great Basin, interior California, and much of the Pacific Northwest.

Prepared by WeatherBank, Inc.