Weather Extremes For Saturday

WEATHER EXTREMES FOR SATURDAY: HIGHEST TEMPERATURE (DEGREES F)...........105 China Lake, CA HIGHEST HEAT INDEX (DEGREES F)............119 Marieta, GA LOWEST TEMPERATURE (DEGREES

Monday, August 27th 2007, 4:38 am

By: News On 6

WEATHER EXTREMES FOR SATURDAY:

HIGHEST TEMPERATURE (DEGREES F)...........105 China Lake, CA

HIGHEST HEAT INDEX (DEGREES F)............119 Marieta, GA

LOWEST TEMPERATURE (DEGREES F).............29 Stanley, ID

LOWEST WIND CHILL (DEGREES F)..............29 Stanley, ID

HIGHEST WIND GUST (MPH)....................70 Barre, VT

HIGHEST PRECIPITATION (INCHES)..............3.78 Mc Alester, OK

NATIONAL WEATHER SUMMARY

In the East, isolated to scattered showers and thunderstorms swept across the lower Great Lakes, the eastern and southern Ohio Valley, the Middle Atlantic, and the Northeast, along a cold front stretching from the lower Mississippi Valley, into the Ohio Valley, and into the Northeast. Rainfall amounts ranged from a half inch to near two inches across these regions. Scattered severe thunderstorms developed along this frontal boundary by the mid-afternoon hours across the northern Middle Atlantic region, Northeast, and eastern Ohio Valley. Hail up to two-inches in diameter, damaging wind gusts near 70 miles-per-hour, and periods of brief, heavy rainfall were the main threats with this activity. Skies cleared across the upper Great Lakes, western Ohio Valley, and along the middle and upper Mississippi Valleys in the wake of this exiting frontal boundary. Further south, daytime heating coupled with this advancing cold front, triggered widespread showers and thunderstorms across the Southeast and Florida. Severe weather associated with this activity was limited to half-dollar sized hail, wind gusts up to 60 miles-per-hour, and periods of heavy rainfall.

In the western two-thirds of the Nation, skies cleared across the lower Mississippi Valley and central Plains in the wake of a passing cold front. Further west, monsoonal moisture flow continued to generate areas of showers and thunderstorms across the southern Rockies, the Southwest, and portions of southern California this afternoon. A few of these storms contained gusty winds and frequent lightning, but no severe activity was reported. Shortly after sunset, the majority of this activity dissipated, yielding partly cloudy skies and dry conditions overnight. Elsewhere, a strong ridge of high pressure dominated the remainder of the western two-thirds of the country, providing fair skies to the Plains, the Mississippi Valley, the northern Rockies, the northern Great Basin, the Pacific Northwest, and northern California.

ON THIS DATE IN HISTORY

In 1993, Butte, Montana recorded five inches of heavy, early season snowfall.

In 1976, a weak tornado hit Kiana, Alaska, about 29 miles north of the Arctic Circle.

In 1992, Hurricane Andrew made its second and final landfall in Louisiana near Burns Point as a category 3 storm. The hurricane spawned at least one destructive tornado at LaPlace, Louisiana. Damage in Louisiana alone totaled $1.8 billion, with eight people losing their lives.

FRONTS ACROSS THE NATION

A cold front is stretched across New York, Pennsylvania, West Virginia, southeastern Kentucky, central Tennessee, northwestern Alabama, northern Mississippi and northern Louisiana.

A cold front is located across far northwestern Washington, far northern Idaho and far northwestern Montana.

NATIONAL WEATHER FORECAST

In the East tonight, a cold front will generate thunderstorms over the Northeast, Appalachians, Mid-Atlantic, and the Southeast. A few severe storms, with hail up to one inch in diameter and wind gusts up to 60 miles-per-hour, will be possible. Some areas of fog may develop from New Jersey through eastern Massachusetts overnight. Fair and dry conditions will prevail over the Great Lakes Region. Lows will range from the mid 50's to mid 60's across the Great Lakes Region. The remainder of the East will experience lows in the 60's and 70's.

In the Central United States, isolated showers and thunderstorms are possible tonight across the Southern Plains along the trailing edge of a cold front. Otherwise, a ridge of high pressure will produce fair weather across the Upper Midwest, Northern Plains, and Central Plains overnight. Lows will be mainly in the 50's and 60's across the Northern Plains. Over the Central and Southern Plains, lows will be mainly in the 60's and 70's.

Tonight in the West, an upper-level disturbance will generate scattered thunderstorms in New Mexico and Arizona. Isolated severe storms with wind gusts up to 60 miles-per-hour will be possible before midnight. Elsewhere, scattered showers will move into the Pacific Northwest in advance of a low pressure system. Fair weather is expected for the northern and central Rockies, as well as the Intermountain West. Lows will be in the 40's and 50's in the Pacific Northwest and northern Rockies. The Four Corners Region, Intermountain West, northern interior California, and areas along the California coastline can expect lows in the 50's and 60's. Across southern interior California and the Desert Southwest, lows will be in the 70's and 80's.

Prepared by WeatherBank, Inc.