Expected

...RED FLAG WARNING FOR THUNDERSTORMS THURSDAY, FIRE WEATHER WATCHES FOR WINDS AND LOW HUMIDITY FRIDAY AND SATURDAY... A ridge breakdown will first bring a threat for thunderstorms across portions of central and north-central Washington today and tonight. Drier weather arrives Friday and Saturday, though winds will become increasingly gusty with critical fire weather conditions likely. * Affected Area: East Washington Central Cascades (Zone 696), East Portion of North Cascades National Park/Lake Chelan

...RED FLAG WARNING FOR THUNDERSTORMS THURSDAY, FIRE WEATHER WATCHES FOR WINDS AND LOW HUMIDITY FRIDAY AND SATURDAY... A ridge breakdown will first bring a threat for thunderstorms across portions of central and north-central Washington today and tonight. Drier weather arrives Friday and Saturday, though winds will become increasingly gusty with critical fire weather conditions likely. * Affected Area: Colville Reservation (Zone 702). * Winds: Gusty and erratic outflow winds up to 35 mph possible in

...RED FLAG WARNING FOR THUNDERSTORMS THURSDAY, FIRE WEATHER WATCHES FOR WINDS AND LOW HUMIDITY FRIDAY AND SATURDAY... A ridge breakdown will first bring a threat for thunderstorms across portions of central and north-central Washington today and tonight. Drier weather arrives Friday and Saturday, though winds will become increasingly gusty with critical fire weather conditions likely. * Affected Area: Okanogan Highlands and Kettle Mountains (Zone 699).

...RED FLAG WARNING FOR THUNDERSTORMS THURSDAY, FIRE WEATHER WATCHES FOR WINDS AND LOW HUMIDITY FRIDAY AND SATURDAY... A ridge breakdown will first bring a threat for thunderstorms across portions of central and north-central Washington today and tonight. Drier weather arrives Friday and Saturday, though winds will become increasingly gusty with critical fire weather conditions likely. * Affected Area: Okanogan Valley (Zone 703), Methow Valley (Zone 704) and Foothills of Central Washington Cascades (Zone 705).

* AFFECTED AREA...Fire Weather Zone 649 North and Central Coastal Strip, Fire Weather Zone 650 North Coastal Lowlands, Fire Weather Zone 651 Central Coastal Lowlands, Fire Weather Zone 652 West Portion of the Olympic Mountains, Fire Weather Zone 655 Black Hills and Southwest Interior Lowlands, Fire Weather Zone 659 West Slopes of the Central Cascades Generally above 1500 Feet and Fire Weather Zone 661 East Portion of the Olympic Mountains. * WINDS...West 5 to 10 mph. * RELATIVE HUMIDITY...As low as 60 percent.

* WHAT...Significant coastal flooding. * WHERE...Lower St. Mary Parish. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure will be inundated. Some shoreline erosion will occur. * ADDITIONAL DETAILS...two to three feet of inundation is expected along the coast. Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth.

* WHAT...Dangerously hot conditions expected. Afternoon temperatures in the desert valleys will climb into the 108 to 114 degree range, and may exceed 115 along the Colorado River Valley and 120 in Death Valley. Overnight lows generally 80 to 95 degrees. * WHERE...Portions of northwest Arizona, southeast California, and southern Nevada including the Greater Mojave Desert region. * WHEN...From 10 AM PDT /10 AM MST/ this morning to 8 PM PDT /8 PM MST/ Monday. * IMPACTS...Heat related illnesses increase significantly during

* WHAT...Dangerously hot conditions with high temperatures between 108 to 112 degrees. * WHERE...Indian Wells Valley and Mojave Desert. * WHEN...From 8 AM this morning to 9 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

* WHAT...Dangerously hot conditions, with daytime temperatures 105 to 110 expected. * WHERE...Marble and Glen Canyons. * WHEN...From 10 AM MST /11 AM MDT/ Friday to 8 PM MST /9 PM MDT/ Sunday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Dangerously hot conditions expected below 4000 feet, with daytime temperatures around 105 degrees at Havasupai Gardens, and 112 to 114 degrees at Phantom Ranch. * WHERE...Lower elevations of the Grand Canyon. * WHEN...From 10 AM Friday to 8 PM MST Sunday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. This warning is reserved for only the hottest days of the year and is