Severe

* WHAT...Northeast winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Santa Ana Mountains and Foothills. * WHEN...From Thursday morning through Friday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel could be difficult, especially for high profile vehicles. Monitor the latest forecasts and warnings for updates. Protect property that may be damaged from high winds.

* WHAT...Northeast winds 25 to 35 mph with gusts up to 55 mph possible. Gusts over 60 mph near the coastal-facing foothills. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...From Thursday morning through Friday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel could be difficult, especially for high profile vehicles. Monitor the latest forecasts and warnings for updates. Protect property that may be damaged from high winds.

* WHAT...Northeast and east winds 25 to 35 mph with gusts up to 70 mph possible in the mountains; gusts up to 60 mph for valley and foothill locations. * WHERE...San Diego County Mountains and inland San Diego County Valleys and Foothills. * WHEN...From Thursday morning through Saturday evening. Windiest period will be on Friday. * IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel could be difficult, especially for high profile vehicles.

* WHAT...Northeast to east winds 30 to 40 mph with gusts up to 60 mph possible; winds over 70 mph through the San Gorgonio Pass possible. * WHERE...Riverside County Mountains, San Bernardino County Mountains, and San Gorgonio Pass near Banning. Highest winds along the coastal-facing slopes and through the San Gorgonio Pass. * WHEN...From Thursday morning through Friday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel could be difficult, especially

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of southwest and western Texas, including the following areas, in southwest Texas, Central Brewster, Chinati Mountains, Chisos Basin, Davis Mountains, Davis Mountains Foothills, Lower Brewster County, Marfa Plateau, Pecos, Presidio Valley and Terrell. In western Texas, Andrews, Borden, Crane, Dawson, Ector, Gaines, Glasscock, Howard, Loving, Martin, Midland, Mitchell, Reagan, Reeves County Plains, Scurry, Upton, Ward and

* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Campbell, Corson, Dewey, Edmunds, McPherson, Potter, Walworth, and Brown Counties. * WHEN...From 3 AM CDT /2 AM MDT/ to 9 AM CDT /8 AM MDT/ Wednesday. * 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.

* WHAT...Northeast winds 25 to 45 mph with gusts of 50 to 70 mph possible. * WHERE...Eastern San Gabriel Mountains, Interstate 5 Corridor, Santa Susana Mountains, Western San Gabriel Mountains and Highway 14 Corridor, and Western Santa Monica Mountains Recreational Area. * WHEN...From Thursday morning through Friday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. Secure outdoor objects.

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of the Rolling Plains and the Panhandle of Texas, including the following counties, Childress, Cottle, Motley, and Hall. * WHEN...From 7 PM CDT this evening through late Wednesday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS...

* WHAT...Thursday morning low temperatures in the mid 20s to lower 30s. * WHERE...The San Luis Valley. * WHEN...From midnight Wednesday Night to 8 AM MDT Thursday. * IMPACTS...Freezing temperatures could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...A killing freeze will be possible which could bring an end to the growing season across the San Luis Valley. Take steps now to protect tender plants from the cold.

* WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...Portions of northeast and southeast North Dakota. * WHEN...From 1 AM to 9 AM CDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Highest probability for freezing temperatures will be west of the Red River Valley. Take steps now to protect tender plants from the cold.