Severe

* WHAT...Dangerously hot conditions, with temperatures around 108 to 115 degrees expected below 4000 feet. * WHERE...Northern Gila and Yavapai counties below 4000 feet; including the Verde Valley and Black Canyon City. * WHEN...Until 8 PM MST Monday. * 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

* WHAT...Hot daytime conditions with high temperatures between 95 and 105 common. Warm overnight conditions will bring less relief than usual. * WHERE...Interstate 5 Corridor and Western San Gabriel Mountains and Highway 14 Corridor. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...There is a high risk for dangerous heat illness, especially for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors.

* WHAT...Hot daytime conditions with high temperatures between 102 and 110 common. Warm overnight conditions will bring less relief than usual. * WHERE...Antelope Valley and nearby foothills. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...There is a high risk for dangerous heat illness, especially for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors. Drink plenty of fluids, stay in an air-conditioned room, stay out of

* WHAT...Hot daytime conditions with high temperatures between 95 and 105 common, except localized 105 to 110 in the hottest locations. Warm overnight conditions will bring less relief than usual. * WHERE...Most valleys and mountains of Los Angeles, Ventura, Santa Barbara, and San Luis Obispo Counties. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...There is a high risk for dangerous heat illness, especially for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors.

The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon Sunday to 9 PM MDT Monday. * AFFECTED AREA...Fire weather zones 421 through 423. * WIND...Southwest to west winds Sunday, becoming west to northwest Monday, at 10 to 20 mph with gusts up to 30 mph. * HUMIDITY...5 to 10 percent Sunday; overnight recoveries 20 to 30 percent; 10 to 15 percent Monday. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended.

The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon to 9 PM MDT Sunday. * AFFECTED AREA...Fire weather zones 434 through 437. * WIND...South to southwest winds 15 to 20 mph with gusts up to 35 mph. * HUMIDITY...Between 8 and 15 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

* WHAT...Dangerously hot conditions with high temperatures up to 108 expected, and overnight low temperatures in the upper-70's. * WHERE...Arches/Grand Flat and Canyonlands/Natural Bridges. * WHEN...Until 9 PM MDT 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.

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of central New Mexico, including the following area, South Central Mountains. * WHEN...Until midnight MDT tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams on and downstream of burn scars may rise out of their banks. * ADDITIONAL DETAILS... - Higher moisture behind a backdoor front will result in a greater

* WHAT...Dangerously hot conditions with highs today in the upper 90s to mid 100s. * WHERE...Northern Phillips, Northern Valley, and Southwest Phillips Counties. * WHEN...Until noon MDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Low temperatures on Sunday morning will be in the upper 60s to mid 70s. Poor overnight recovery will add to heat related stress.

* WHAT...For the Extreme Heat Warning, dangerously hot temperatures with highs today in the low to mid 100s. For the Lake Wind Advisory, west winds 10 to 20 mph with gusts up to 30 mph expected. * WHERE...McCone County. * WHEN...For the Extreme Heat Warning, until 6 PM MDT Sunday. For the Lake Wind Advisory, from 6 PM this evening to 6 PM MDT Sunday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Heat related illnesses