Severe

* WHAT...Dangerously hot conditions with high temperatures ranging from the mid 80s to around 90 near the coast to the mid 90s to around 100 near higher coastal terrain expected. Nights will be very warm with low temperatures mostly in the 70s. * WHERE...Orange County Coastal Areas. * WHEN...Until 8 PM PDT Thursday. * 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...For the Extreme Heat Warning, dangerously hot conditions with high temperatures in the upper 90s to 105 with very warm nights with low temperatures in the lower to mid 70s expected. For the Wind Advisory, east winds 25 to 35 mph with gusts to 50 mph expected. * WHERE...San Diego County Valleys. * WHEN...For the Extreme Heat Warning, until 8 PM PDT Thursday. For the Wind Advisory, from 6 AM to 6 PM PDT Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree

* WHAT...Dangerously hot conditions with high temperatures ranging from the mid 80s to lower 90s near the coast to the mid 90s to low 100s for the mesas and other higher coastal terrain expected. Nights will be very warm with low temperatures mostly in the 70s. * WHERE...San Diego County Coastal Areas. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Drink plenty of fluids, stay in an air-conditioned room, stay out of

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with temperatures up to 100 expected. For the Wind Advisory, east winds 15 to 25 mph with gusts to 40 mph expected. * WHERE...Santa Ana Mountains and Foothills. * WHEN...For the Extreme Heat Warning, until 8 PM PDT Thursday. For the Wind Advisory, from 6 AM to 6 PM PDT Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Heat

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with temperatures up to 101. For the Wind Advisory, east winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Orange County Inland Areas. Wind Advisory for southeastern Orange County valleys. * WHEN...For the Extreme Heat Warning, until 8 PM PDT Thursday. For the Wind Advisory, from 6 AM to 6 PM PDT Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Heat

* WHAT...Sub-freezing temperatures as low as 24. * WHERE...Portions of central Upper and western Upper Michigan. * WHEN...Until 10 AM EDT /9 AM CDT/ this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. Those that have in-ground sprinkler systems should drain

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of southwest Alabama, including the following areas, Baldwin Central, Baldwin Coastal, Baldwin Inland, Mobile Central, Mobile Coastal and Mobile Inland and northwest Florida, including the following areas, Escambia Coastal, Escambia Inland, Okaloosa Coastal, Okaloosa Inland, Santa Rosa Coastal and Santa Rosa Inland. * WHEN...From 10 AM CDT Saturday through Sunday evening. * IMPACTS...Excessive runoff may result in flooding of rivers,

...The Flood Warning continues for the following rivers in New Mexico... Rio Puerco Near Bernardo affecting Socorro County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Rio Puerco near Bernardo. * WHEN...Until late Saturday night. * IMPACTS...At 19.5 feet, the water level in the Lower Rio Puerco will begin to threaten several homes and structures in the village of San Francisco between Interstate 25 and the Rio Grande. Further rises in water levels would begin to flood the village of San

...The Flood Warning is extended for the following rivers in Iowa... Black Hawk Creek at Hudson affecting Black Hawk County. South Skunk River near Ames US 30 affecting Polk and Story Counties. South Skunk River at Colfax affecting Jasper, Polk and Marion Counties. ...The Flood Warning continues for the following rivers in Iowa... South Skunk River near Ames W Riverside Rd affecting Story County. Des Moines River at Des Moines SE 6th St affecting Polk, Warren and Marion Counties. Raccoon River at Des Moines Fleur Dr affecting Polk County.