U.S. Alerts |
NOAA's National Weather Service
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WARNINGS - WATCHES - ADVISORIES - STATEMENTS
Updates every 15 Minutes
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FLOOD ADVISORY | ||
Los Angeles County | ||
Effective: Fri, 11/22 9:35am | Severity: Minor | |
Updated: November 22, 2024 12:00 pm | Urgency: Expected | |
Expires: Sat, 11/23 3:15am | Certainty: Likely | |
Areas Affected: Marin, CA - Napa, CA - Sonoma, CA | ||
Alert
Details:
* WHAT...Urban area and small stream flooding caused by excessive rainfall continues. * WHERE...A portion of northern California, including the following counties, Marin, Napa and Sonoma. * WHEN...Until 315 AM PST Saturday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Overflowing poor drainage areas. * ADDITIONAL DETAILS... - At 935 AM PST, Doppler radar and automated rain gauges indicated heavy rain. This is causing urban and small stream flooding. Between 5 and 22 inches of rain have fallen. - Additional rainfall amounts of 1 to 3 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Santa Rosa, Napa, Petaluma, San Rafael, Novato, Rohnert Park, Windsor, American Canyon, Mill Valley, San Anselmo, Larkspur, Healdsburg, Sonoma, Corte Madera, Tiburon, Cloverdale, Fairfax, Sebastopol, Cotati and Sausalito. - http://www.weather.gov/safety/flood Information: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. |
FLOOD ADVISORY | ||
Marin County | ||
Effective: Fri, 11/22 9:35am | Severity: Minor | |
Updated: November 22, 2024 12:00 pm | Urgency: Expected | |
Expires: Sat, 11/23 3:15am | Certainty: Likely | |
Areas Affected: Marin, CA - Napa, CA - Sonoma, CA | ||
Alert
Details:
* WHAT...Urban area and small stream flooding caused by excessive rainfall continues. * WHERE...A portion of northern California, including the following counties, Marin, Napa and Sonoma. * WHEN...Until 315 AM PST Saturday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Overflowing poor drainage areas. * ADDITIONAL DETAILS... - At 935 AM PST, Doppler radar and automated rain gauges indicated heavy rain. This is causing urban and small stream flooding. Between 5 and 22 inches of rain have fallen. - Additional rainfall amounts of 1 to 3 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Santa Rosa, Napa, Petaluma, San Rafael, Novato, Rohnert Park, Windsor, American Canyon, Mill Valley, San Anselmo, Larkspur, Healdsburg, Sonoma, Corte Madera, Tiburon, Cloverdale, Fairfax, Sebastopol, Cotati and Sausalito. - http://www.weather.gov/safety/flood Information: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. |
WIND ADVISORY | ||
Los Angeles County | ||
Effective: Fri, 11/22 6:51am | Severity: Moderate | |
Updated: November 22, 2024 12:00 pm | Urgency: Expected | |
Expires: Fri, 11/22 3:00pm | Certainty: Likely | |
Areas Affected: San Francisco - Marin Coastal Range - Sonoma Coastal Range - North Bay Interior Mountains - Coastal North Bay Including Point Reyes National Seashore - San Francisco Peninsula Coast - Santa Cruz Mountains - Eastern Santa Clara Hills - East Bay Hills - Santa Lucia Mountains and Los Padres National Forest - Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park - Southern Monterey Bay and Big Sur Coast | ||
Alert
Details:
* WHAT...South winds 15 to 30 mph with gusts up to 50 mph expected, locally higher gusts greater than 65 mph are possible above 2,500 feet. * WHERE...Coastal and higher elevation regions of the North Bay, the city of San Francisco, the East Bay and Santa Clara Hills, Santa Cruz Mountains and San Mateo, the Gabilan Range, the Santa Lucia Range, southern Monterey Bay, and coastal Big Sur. * WHEN...Until 10 PM PST this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The combination of wind and moist soils will increase the risk for downed trees particularly across the North Bay. * ADDITIONAL DETAILS...A narrow frontal rain band will move through the Bay Area and Central Coast today which will result in gusty south winds ahead of and during its passage. Winds will start to ease overnight after the frontal rain band has progressed out of the region. Moderate to heavy rains over the last 48 hours have saturated soils across the North Bay which will lead to increased risk of downed trees and power lines as gusty winds redevelop. Information: Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. |
WIND ADVISORY | ||
Marin County | ||
Effective: Fri, 11/22 6:51am | Severity: Moderate | |
Updated: November 22, 2024 12:00 pm | Urgency: Expected | |
Expires: Fri, 11/22 3:00pm | Certainty: Likely | |
Areas Affected: San Francisco - Marin Coastal Range - Sonoma Coastal Range - North Bay Interior Mountains - Coastal North Bay Including Point Reyes National Seashore - San Francisco Peninsula Coast - Santa Cruz Mountains - Eastern Santa Clara Hills - East Bay Hills - Santa Lucia Mountains and Los Padres National Forest - Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park - Southern Monterey Bay and Big Sur Coast | ||
Alert
Details:
* WHAT...South winds 15 to 30 mph with gusts up to 50 mph expected, locally higher gusts greater than 65 mph are possible above 2,500 feet. * WHERE...Coastal and higher elevation regions of the North Bay, the city of San Francisco, the East Bay and Santa Clara Hills, Santa Cruz Mountains and San Mateo, the Gabilan Range, the Santa Lucia Range, southern Monterey Bay, and coastal Big Sur. * WHEN...Until 10 PM PST this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The combination of wind and moist soils will increase the risk for downed trees particularly across the North Bay. * ADDITIONAL DETAILS...A narrow frontal rain band will move through the Bay Area and Central Coast today which will result in gusty south winds ahead of and during its passage. Winds will start to ease overnight after the frontal rain band has progressed out of the region. Moderate to heavy rains over the last 48 hours have saturated soils across the North Bay which will lead to increased risk of downed trees and power lines as gusty winds redevelop. Information: Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. |
FLOOD WATCH | ||
Los Angeles County | ||
Effective: Fri, 11/22 5:25am | Severity: Severe | |
Updated: November 22, 2024 12:00 pm | Urgency: Future | |
Expires: Fri, 11/22 1:30pm | Certainty: Possible | |
Areas Affected: Marin Coastal Range - Sonoma Coastal Range - North Bay Interior Mountains - Coastal North Bay Including Point Reyes National Seashore - North Bay Interior Valleys | ||
Alert
Details:
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...The North Bay. * WHEN...Through Saturday morning. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood Information: 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. |
FLOOD WATCH | ||
Marin County | ||
Effective: Fri, 11/22 5:25am | Severity: Severe | |
Updated: November 22, 2024 12:00 pm | Urgency: Future | |
Expires: Fri, 11/22 1:30pm | Certainty: Possible | |
Areas Affected: Marin Coastal Range - Sonoma Coastal Range - North Bay Interior Mountains - Coastal North Bay Including Point Reyes National Seashore - North Bay Interior Valleys | ||
Alert
Details:
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...The North Bay. * WHEN...Through Saturday morning. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood Information: 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. |