Expected

The National Weather Service in Tucson has issued a * Dust Storm Warning for... North Central Pima County in southeastern Arizona... Southwestern Pinal County in southeastern Arizona... * Until 1230 AM MST. * At 1132 PM MST, a wall of dust was located along a line from 15 miles west of Avra Valley to 11 miles north of Marana, moving north at 20 mph. HAZARD...Less than a quarter mile visibility. SOURCE...Detected by National Weather Service meteorologists. IMPACT...Dangerous life-threatening travel. * Locations impacted include...

* AFFECTED AREA...Fire weather zones 421 through 425. * WIND...West to northwest winds from 15 to 25 mph with gusts up to 35 mph. * HUMIDITY...Between 5 and 10 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

* AFFECTED AREA...Fire weather zone 417 through 425 and 428 through 430. * WIND...West to northwest winds from 15 to 25 mph with gusts up to 35 mph. * HUMIDITY...Between 5 and 10 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

* AFFECTED AREA...Fire Weather Zones 220 and 223. * WINDS...Northwest 5 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution with any outdoor burning. A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

* IMPACTS...Any fires that develop will likely spread rapidly. * AFFECTED AREA...In Oregon, Fire Weather zones 620 and 622, including the East Evans Creek fire, as well as Medford, Grants Pass, Ashland, Cave Junction, and Shady Cove. In California... Fire weather zones 280. This includes Happy Camp, Etna, and Fort Jones. * WIND...Northwest to west 10 to 15 mph with gusts up to 25 mph. * HUMIDITY...Minimum humidity 8 to 15 percent. * ADDITIONAL INFORMATION...Increasingly unstable conditions could further increase fire activity.

The National Weather Service in Tucson has issued a * Dust Storm Warning for... Central Pima County in southeastern Arizona... * Until 100 AM MST. * At 1102 PM MST, a wall of dust was located along a line from 11 miles north of Arivaca to near Marana, moving west at 15 mph. HAZARD...Less than a quarter mile visibility with damaging winds in excess of 60 mph. SOURCE...Detected by National Weather Service meteorologists. IMPACT...Dangerous life-threatening travel. * Locations impacted include...

* WHAT...Dangerously hot conditions with temperatures up to 105 expected for most valley locations. Temperatures may approach or exceed 110 degrees for Lower Washington County, Glen Canyon, and Zion Canyon. Overnight lows in the upper 70s to low 80s will offer little relief. * WHERE...Capitol Reef National Park and Vicinity, Glen Canyon Recreation Area/Lake Powell, South Central Utah, Western Canyonlands, Lower Washington County, and Zion National Park. * WHEN...From noon Thursday to 9 PM MDT Saturday.

* WHAT...Dangerously hot conditions with temperatures up to 104 expected. Warm overnight lows in the mid to high 70s will offer little relief. * WHERE...Castle Country, San Rafael Swell, Western Millard and Juab Counties, Great Salt Lake Desert and Mountains, Northern Wasatch Front, Salt Lake Valley, and Tooele and Rush Valleys. * WHEN...From noon Friday to midnight MDT Sunday Night. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

* WHAT...Dangerously hot conditions with high temperatures of 100 to 110 expected. * WHERE...Apple and Lucerne Valleys. * WHEN...Until 8 PM PDT Saturday. * 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.