Severe

* WHAT...Dangerously hot conditions possible. Afternoon temperatures 102 to 106. Major Heat Risk. * WHERE...In Arizona, Gila River Valley and Parker Valley. In California, Chuckwalla Valley and Palo Verde Valley. * WHEN...Until 8 PM MST /8 PM PDT/ this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.

* WHAT...Dangerously hot conditions possible. Afternoon temperatures 104 to 109. Major Heat Risk. * WHERE...Portions of Imperial County, including the Imperial Valley. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. An Extreme Heat Warning means that a period of very hot temperatures,

The National Weather Service in Pocatello has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 2 PM to 8 PM MDT Friday. * AFFECTED AREA...Fire Weather Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River. * WINDS...Southwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS... A Red Flag Warning means that critical fire weather conditions

* WHAT...Southeast winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...Bering Strait Coast and Diomede. * WHEN...Until 1 AM AKDT Friday. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult. People are urged to secure loose objects that could be blown around or damaged by the wind.

* WHAT...South winds 30 to 40 mph with gusts up to 60 mph. * WHERE...St Lawrence Island. * WHEN...Until 10 PM AKDT this evening. * IMPACTS...High winds may damage property and cause power outages. Travel could be difficult. People are urged to secure loose objects that could be blown around or damaged by the wind.

...RED FLAG WARNING FOR PORTIONS OF SOUTHEAST TEXAS AND CENTRAL AND SOUTHWEST LOUISIANA FRIDAY... .Breezy and dry conditions on the outer periphery of Hurricane Isaias combined with dry fuels will produce red flag conditions across portions of central and southwest Louisiana and southeast Texas Friday. * AFFECTED AREA...Fire Weather Zone 027 Vernon, Fire Weather Zone 028 Rapides, Fire Weather Zone 030 Beauregard, Fire Weather Zone 031 Allen, Fire Weather Zone 032 Evangeline, Fire

...RED FLAG WARNING FOR PORTIONS OF SOUTHEAST TEXAS AND CENTRAL AND SOUTHWEST LOUISIANA FRIDAY... .Breezy and dry conditions on the outer periphery of Hurricane Isaias combined with dry fuels will produce red flag conditions across portions of central and southwest Louisiana and southeast Texas Friday. The National Weather Service in Lake Charles has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM to 7 PM CDT Friday. * AFFECTED AREA...Fire Weather Zone 029 Avoyelles.

FFWHFO The National Weather Service in Honolulu has issued a * Flash Flood Warning for... The island of Oahu in Honolulu County * Until 115 PM HST. * At 1021 AM HST, emergency management reported water flowing over portions of Kamehameha Highway on the North Shore between Turtle Bay and Sharks's Cove, making passage through the area dangerous. Moderate to locally heavy rain continues to develop and move over the island with the majority occurring over the western half of the

* WHAT...Heavy snow expected. Total snow accumulations up to 10 to 14 inches for areas of elevation. Winds occasionally gusting as high as 45 mph. * WHERE...Noatak Valley and South Slopes of the Western Brooks Range. * WHEN...From midnight tonight to 10 AM AKDT Saturday. * IMPACTS...Travel could be very difficult. Areas of blowing snow could significantly reduce visibility. If you must travel, keep an extra flashlight, food, and water with you in case of an emergency.

* WHAT...Southeast winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Point Hope. * WHEN...From 10 AM Thursday to 7 AM AKDT Friday. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel may be difficult. People are urged to secure loose objects that could be blown around or damaged by the wind.