Future

* WHAT...Flash flooding caused by excessive rainfall is possible due to thunderstorms. * WHERE...Portions of east central California, including the following area, Mono County and western Nevada, including the following area, Mineral and Southern Lyon Counties. * WHEN...From Tuesday afternoon through Tuesday evening. * IMPACTS...Excessive runoff may result in flooding of creeks, streams, urban areas, burn scars, and areas near steep terrain. * ADDITIONAL DETAILS...

* WHAT...For the Heat Advisory, temperatures between 93 to 103 expected. For the Extreme Heat Watch, dangerously hot conditions with temperatures between 97 and 107 possible. * WHERE...A portion of southwest California. * WHEN...For the Heat Advisory, from 10 AM to 8 PM PDT Wednesday. For the Extreme Heat Watch, from Wednesday evening through Monday evening. * IMPACTS...There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without

* WHAT...Dangerously hot conditions with temperatures up to 108 possible. * WHERE...Antelope Valley. * WHEN...From Thursday morning through Monday evening. * IMPACTS...There is a high risk for dangerous heat illness for anyone, especially for 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 the sun, and check up on relatives and neighbors.

* WHAT...Dangerously hot conditions with high temperatures 113 to 117 possible. Low temperatures in the upper 80s. * WHERE...Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning. * WHEN...From Wednesday morning through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Major HeatRisk. Elevated low temperatures will limit overnight relief from the heat. Drink plenty of fluids, stay in an air-conditioned room, stay out of

* WHAT...Dangerously hot conditions with high temperatures 103 to 108 possible. Low temperatures in the low to mid-70s, locally near 80 degrees in the Lucerne Valley. * WHERE...Apple and Lucerne Valleys. * WHEN...From Wednesday morning through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Areas of major HeatRisk. Elevated low temperatures will limit overnight relief from the heat.

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northern Delaware, including the following area, New Castle, New Jersey, including the following areas, Camden, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Somerset and Western Monmouth, and southeast Pennsylvania, including the following areas, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester and Western Montgomery.

* WHAT...Dangerously hot conditions possible. Afternoon temperatures 105 to 116. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...In Arizona, Central La Paz, Gila River Valley, Kofa, and Southeast Yuma County. In California, Joshua Tree NP East and Joshua Tree NP West. * WHEN...From Thursday morning through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

* WHAT...Dangerously hot conditions possible. Afternoon temperatures 104 to 113. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...Portions of southwest Arizona and southeast and southern California. * WHEN...From Wednesday morning through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. An Extreme Heat Watch means that a period of very hot temperatures,

* WHAT...Dangerously hot conditions possible. Afternoon temperatures 108 to 115. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...Buckeye/Avondale, Central Phoenix, Deer Valley, East Valley, North Phoenix/Glendale, Northwest Valley, Scottsdale/Paradise Valley, South Mountain/Ahwatukee, and Southeast Valley/Queen Creek. * WHEN...From Thursday morning through Monday evening.

* WHAT...Dangerously hot conditions possible. Afternoon temperatures 105 to 116. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...A portion of south central Arizona. * WHEN...From Thursday morning through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. An Extreme Heat Watch means that a period of very hot temperatures,