Effective:

2025-03-12T02:50:00-07:00

Expires:

2025-03-15T05:00:00-07:00

Certainty:

Likely

Event:

Winter Storm Warning

Type:

Update

Severity:

Severe

Urgency:

Expected

Areas:

Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills

* WHAT...Heavy snow possible with 12 to 24 inches possible above 6500-7000 feet, 6-12 inches 5500-7000, 1-5 inches 4000-5500 feet, and up to an inch as low as 3000 feet. Winds could gust as high as 50 mph. * WHERE...The mountains of Los Angeles, Ventura, and Santa Barbara Counties. * WHEN...From 4 PM this afternoon to 5 AM PDT Saturday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Wednesday evening and Thursday morning commutes. Strong winds could cause tree damage. * ADDITIONAL DETAILS...The heaviest snow is expected to be tonight into Thursday morning. A second, and much weaker system will move into the mountains Friday into Friday night generating much lighter accumulations.

Instruction: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

Effective:

2025-03-12T02:53:00-07:00

Expires:

2025-03-13T18:00:00-07:00

Certainty:

Possible

Event:

Flood Watch

Type:

Update

Severity:

Severe

Urgency:

Future

Areas:

Catalina and Santa Barbara Islands; Santa Clarita Valley; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Ventura County Beaches; Ventura County Inland Coast; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Southeastern Ventura County Valleys; Santa Susana Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Los Angeles County San Gabriel Valley

* WHAT...Flash flooding and debris flows caused by excessive rainfall are possible. * WHERE...Much of Los Angeles and Ventura Counties (below 5,000 to 6,000 feet), and the Santa Barbara County South Coast including the Santa Ynez Range. Higher concern for recent burn scars within the watch area. * WHEN...From this evening through Thursday afternoon. * IMPACTS...Potential for heavy rain over the burn scars may trigger hazardous and damaging flooding and debris flows. Flooding may also occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Peak rates of 0.5 to 0.75 inch/hr are possible, with a 10 to 20 percent chance rates of 1.0+ inch/hr (due to thunderstorms or heavy showers). - http://www.weather.gov/safety/flood

Instruction: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.