Severe

The National Weather Service in Sioux Falls has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Friday morning through Friday evening. * AFFECTED AREA...In South Dakota, Beadle, Jerauld and Sanborn. * WINDS...Northwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 17 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. A Fire Weather Watch means that critical fire weather conditions

The National Weather Service in Sioux Falls has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 10 AM to 7 PM CDT Thursday. * AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Cottonwood, Nobles, Jackson and Rock. In Nebraska, Dixon and Dakota. In South Dakota, Hanson, McCook, Minnehaha, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union.

SVRPBZ The National Weather Service in Pittsburgh has issued a * Severe Thunderstorm Warning for... Southwestern Greene County in southwestern Pennsylvania... Northwestern Marion County in northern West Virginia... Marshall County in northern West Virginia... Northwestern Monongalia County in northern West Virginia... Wetzel County in northern West Virginia... * Until 345 PM EDT. * At 259 PM EDT, a severe thunderstorm was located 6 miles east of New Martinsville, moving east at 35 mph.

* WHAT...Southwest winds 15 to 25 mph with gusts up to 40 mph and relative humidity between 7 to 15 percent. * WHERE...Mogollon Rim, Kaibito Plateau, Painted Desert, Kaibab Plateau, Grand Canyon Country, Coconino Plateau, Little Colorado River Valley in Coconino County, Little Colorado River Valley in Navajo County, and Black Mesa Area. This includes portions of the Apache-Sitgreaves, Coconino, and Kaibab national forests. * WHEN...Until 8 PM MST /9 PM MDT/ this evening.

At 233 PM EDT, a severe thunderstorm was located near Houghton, or 15 miles south of Letchworth State Park, moving east at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Dansville, Letchworth State Park, Belfast, Portageville, Nunda, Angelica, Ossian, Canaseraga, Birdsall, and Short Tract. This includes Interstate 390 between exits 4 and 5. For your protection move to an interior room on the lowest floor of a building.

* WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph. * WHERE...Southwestern Montana along and south of Interstate 90, Big Belt, Bridger and Castle Mountains, and Canyon Ferry Area. * WHEN...Until 9 PM MDT this evening. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Areas of blowing dust may create locally reduced visibility.

* WHAT...West winds 40 to 50 mph with gusts up to 65 mph expected. * WHERE...Eastern Toole and Liberty Counties, Eastern Pondera and Eastern Teton Counties, Cascade County below 5000ft, and Judith Basin County and Judith Gap. * WHEN...From midnight tonight to 6 PM MDT Thursday. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Areas of blowing dust may create locally

* WHAT...West winds 35 to 55 mph with gusts up to 80 mph expected. * WHERE...The Rocky Mountain Front and adjacent foothills and plains, Eastern Glacier, Western Toole, and Central Pondera Counties, and Upper Blackfoot and MacDonald Pass. * WHEN...From 6 PM this evening to midnight MDT Thursday Night. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. People are urged to secure loose objects that could be blown around