San Francisco, California
Regional Weather Alerts
| Alert: | Special Weather Statement |
| Area(s): | Southern Monterey Bay and Big Sur Coast |
| Effective: | 2026-01-05 @ 9:08 pm |
| Onset: | 2026-01-05 @ 9:08 pm -> 2026-01-05 @ 9:45 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS San Francisco CA on 2026-01-05 @ 9:08 pm |
| Headline: | Special Weather Statement issued January 5 at 7:08PM PST by NWS San Francisco CA |
| Description: |
At 708 PM PST, Doppler radar was tracking a strong thunderstorm over Del Monte Forest, or 5 miles southwest of Monterey, moving north at 35 mph. HAZARD...Wind gusts up to 50 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Seaside, Monterey, Marina, Pacific Grove, Carmel-By-The-Sea, Castroville, Moss Landing, Del Monte Forest, Prunedale, Del Rey Oaks, Sand City and Elkhorn. |
| Alert: | Flood Advisory |
| Area(s): | Marin, CA; Sonoma, CA |
| Effective: | 2026-01-05 @ 8:09 pm -> 2026-01-06 @ 2:30 am |
| Onset: | 2026-01-05 @ 8:09 pm -> 2026-01-06 @ 2:30 am |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS San Francisco CA on 2026-01-05 @ 8:09 pm |
| Headline: | Flood Advisory issued January 5 at 6:09PM PST until January 6 at 12:30AM PST by NWS San Francisco CA |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Areas west of a line from Cotati to Healdsburg in the Sonoma coastal range. * Until 1230 AM PST Tuesday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. River or stream flows are elevated. * ADDITIONAL DETAILS... - At 608 PM PST, Doppler radar and automated rain gauges indicated heavy rain. Minor flooding is already occurring in the advisory area. Between 2 and 4.5 inches of rain have fallen. - Additional rainfall amounts of 0.1 to 0.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Santa Rosa, Rohnert Park, Windsor, Healdsburg, Sebastopol, Cotati, Tomales, Larkfield-Wikiup, Dillon Beach, Roseland, South Santa Rosa Cdp, Forestville, Guerneville, Occidental, Graton, Monte Rio, Bodega Bay and South Santa Rosa. - http://www.weather.gov/safety/flood |
| Alert: | Flood Advisory |
| Area(s): | Alameda, CA; Contra Costa, CA |
| Effective: | 2026-01-05 @ 7:49 pm -> 2026-01-05 @ 10:45 pm |
| Onset: | 2026-01-05 @ 7:49 pm -> 2026-01-05 @ 10:45 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS San Francisco CA on 2026-01-05 @ 7:49 pm |
| Headline: | Flood Advisory issued January 5 at 5:49PM PST until January 5 at 8:45PM PST by NWS San Francisco CA |
| Description: |
* WHAT...Urban area and small stream flooding caused by excessive rainfall is expected. * WHERE...Western Alameda County in northern California... Western Contra Costa County in northern California... * Until 845 PM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 549 PM PST, Doppler radar indicated heavy rain. This is causing urban and small stream flooding. Between 0.5 and 1 inch of rain has fallen. - Additional rainfall amounts up to 0.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Oakland, Fremont, Hayward, Concord, Berkeley, Richmond, San Leandro, Mountain View, Alameda, San Ramon, Pleasanton, Union City, Walnut Creek, Dublin, Newark, Danville, Martinez, Pleasant Hill, San Pablo and Lafayette. - http://www.weather.gov/safety/flood |
| Alert: | Flood Advisory |
| Area(s): | Marin, CA; Sonoma, CA |
| Effective: | 2026-01-05 @ 7:47 pm -> 2026-01-05 @ 10:00 pm |
| Onset: | 2026-01-05 @ 7:47 pm -> 2026-01-05 @ 10:00 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS San Francisco CA on 2026-01-05 @ 7:47 pm |
| Headline: | Flood Advisory issued January 5 at 5:47PM PST until January 5 at 8:00PM PST by NWS San Francisco CA |
| Description: |
* WHAT...Urban area and small stream flooding caused by excessive rainfall continues. * WHERE...Marin County and the Highway 101 corridor into Sonoma County. * Until 800 PM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 546 PM PST, Doppler radar indicated heavy rain. This will cause urban and small stream flooding. Between 1.2 and 3.5 inches of rain have fallen. - Additional rainfall amounts up to 0.2 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Petaluma, San Rafael, Novato, Rohnert Park, Mill Valley, San Anselmo, Larkspur, Corte Madera, Tiburon, Fairfax, Cotati, Sausalito, San Geronimo, Lucas Valley-Marinwood, Point Reyes Station, Black Point-Green Point, Kentfield, Stinson Beach, Muir Beach and Tamalpais-Homestead. - http://www.weather.gov/safety/flood |
| Alert: | Flood Advisory |
| Area(s): | Napa, CA |
| Effective: | 2026-01-05 @ 7:28 pm -> 2026-01-05 @ 9:45 pm |
| Onset: | 2026-01-05 @ 7:28 pm -> 2026-01-05 @ 9:45 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS San Francisco CA on 2026-01-05 @ 7:28 pm |
| Headline: | Flood Advisory issued January 5 at 5:28PM PST until January 5 at 7:45PM PST by NWS San Francisco CA |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Napa County in northern California... * Until 745 PM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 528 PM PST, Doppler radar indicated heavy rain. Minor flooding is ongoing or expected to begin shortly in the advisory area. - Some locations that will experience flooding include... Napa, American Canyon, St. Helena, Calistoga, Yountville, Deer Park and Angwin. - http://www.weather.gov/safety/flood |
| Alert: | Flood Advisory |
| Area(s): | Santa Cruz, CA |
| Effective: | 2026-01-05 @ 7:22 pm -> 2026-01-05 @ 10:30 pm |
| Onset: | 2026-01-05 @ 7:22 pm -> 2026-01-05 @ 10:30 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS San Francisco CA on 2026-01-05 @ 7:22 pm |
| Headline: | Flood Advisory issued January 5 at 5:22PM PST until January 5 at 8:30PM PST by NWS San Francisco CA |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...West Central Santa Cruz County in northern California... * Until 830 PM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Some low-water crossings may become impassable. * ADDITIONAL DETAILS... - At 521 PM PST, Doppler radar indicated heavy rain. Minor flooding is already occurring in the advisory area. Between 1 and 2 inches of rain have fallen in the past 3-6 hours. - Additional rainfall amounts of 1 to 2 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Santa Cruz, Scotts Valley, Ben Lomond, Boulder Creek and Felton. - http://www.weather.gov/safety/flood |
| Alert: | Flood Watch |
| Area(s): | Northern Humboldt Coast; Southwestern Humboldt; Northern Humboldt Interior; Southern Humboldt Interior; Southern Trinity; Mendocino Coast; Northwestern Mendocino Interior; Northeastern Mendocino Interior; Southwestern Mendocino Interior; Southeastern Mendocino Interior; Northern Lake County; Southern Lake County |
| Effective: | 2026-01-05 @ 7:02 pm -> 2026-01-06 @ 12:00 am |
| Onset: | 2026-01-05 @ 7:02 pm -> 2026-01-06 @ 12:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Eureka CA on 2026-01-05 @ 7:02 pm |
| Headline: | Flood Watch issued January 5 at 5:02PM PST until January 5 at 10:00PM PST by NWS Eureka CA |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northwest California, including the following areas, Humboldt County, Mendocino County, Lake County, and Southern Trinity * WHEN...Until 10 PM PST this evening. * IMPACTS...There will be an increased risk of rock and land slides along roadways. Excessive runoff may result in flooding of creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Rainfall will continue to diminish in Mendocino and Lake counties and it has already ended farther north. - This may include Hwy 1 near the Garcia river, north of Point Arena. - http://www.weather.gov/safety/flood |
| Alert: | Flood Warning |
| Area(s): | Mendocino, CA |
| Effective: | 2026-01-05 @ 5:30 pm -> 2026-01-06 @ 11:00 am |
| Onset: | 2026-01-05 @ 5:30 pm -> 2026-01-06 @ 10:30 am |
| Severity: | Severe |
| Certainty: | Observed |
| Urgency: | Immediate |
| Issued By: | NWS Eureka CA on 2026-01-05 @ 5:30 pm |
| Headline: | Flood Warning issued January 5 at 3:30PM PST until January 6 at 9:00AM PST by NWS Eureka CA |
| Description: |
...The Flood Warning is extended for the following rivers in California... Russian River near Hopland affecting Mendocino County. For the Russian River...including Hopland...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Russian River near Hopland. * WHEN...Until Tuesday morning. * IMPACTS...At 18.0 feet, Flooding of Highway 222 near Ukiah. Secondary roads in low-lying areas will be flooded in the Hopland, Ukiah, and Talmage areas. * ADDITIONAL DETAILS... - At 2:45 PM PST Monday the stage was 16.7 feet. - Bankfull stage is 21.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 2:45 PM PST Monday was 16.7 feet. - Forecast...The river is expected to rise to a crest of 18.0 feet late this evening. It will then fall below flood stage tomorrow morning. - Flood stage is 15.0 feet. - Flood History...This crest compares to a previous crest of 17.6 feet on 01/18/2016. - http://www.weather.gov/safety/flood |
| Alert: | Flood Warning |
| Area(s): | Sonoma, CA |
| Effective: | 2026-01-05 @ 5:13 pm -> 2026-01-07 @ 10:00 am |
| Onset: | 2026-01-05 @ 5:13 pm -> 2026-01-07 @ 10:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS San Francisco CA on 2026-01-05 @ 5:13 pm |
| Headline: | Flood Warning issued January 5 at 3:13PM PST until January 7 at 8:00AM PST by NWS San Francisco CA |
| Description: |
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Areas near and downstream of Mark West Creek near Mirabel Heights * Until 800 AM PST Wednesday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. It will take several hours for all the water from these storms to work through local drainage systems in urban areas. * ADDITIONAL DETAILS... - At 312 PM PST, Doppler radar and automated rain gauges indicated heavy rain. Flooding is already occurring in the warned area. Between 2 and 3 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1.5 inches are possible in the warned area. - Some locations that will experience flooding include... Santa Rosa, Rohnert Park, Windsor, Sebastopol, Cotati, Larkfield-Wikiup, South Santa Rosa Cdp, Forestville and Graton. - http://www.weather.gov/safety/flood |
| Alert: | Flood Advisory |
| Area(s): | Lake, CA |
| Effective: | 2026-01-05 @ 4:23 pm -> 2026-01-06 @ 1:30 am |
| Onset: | 2026-01-05 @ 4:23 pm -> 2026-01-06 @ 1:30 am |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Eureka CA on 2026-01-05 @ 4:23 pm |
| Headline: | Flood Advisory issued January 5 at 2:23PM PST until January 5 at 11:30PM PST by NWS Eureka CA |
| Description: |
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Lake County in central California... * Until 1130 PM PST Monday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Ponding of water in urban or other areas is occurring or is imminent. There will be an increased risk of rock and land slides along roadways. * ADDITIONAL DETAILS... - At 223 PM PST, Doppler radar indicated heavy rain. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Lakeport, Middletown, Upper Lake, Clearlake, Konocti Bay, Glenhaven, Mount Konocti, Soda Bay, Seigler Springs, Loch Lomond, Adams, Ettawa Springs, Hobergs, Forest Lake, Whispering Pines, Finley, Anderson Springs, Hough Springs, Barkerville and North Lakeport. - http://www.weather.gov/safety/flood |
| Alert: | Flood Warning |
| Area(s): | Mendocino, CA |
| Effective: | 2026-01-05 @ 2:16 pm -> 2026-01-06 @ 5:00 am |
| Onset: | 2026-01-06 @ 12:00 am -> 2026-01-06 @ 2:30 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Eureka CA on 2026-01-05 @ 2:16 pm |
| Headline: | Flood Warning issued January 5 at 12:16PM PST until January 6 at 3:00AM PST by NWS Eureka CA |
| Description: |
...The National Weather Service in Eureka has issued a Flood Warning for the following rivers in California... Navarro River at Navarro affecting Mendocino County. For the Navarro River...including Navarro...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Navarro River at Navarro. * WHEN...From this evening to late tonight. * ADDITIONAL DETAILS... - At 11:15 AM PST Monday the stage was 16.5 feet. - Forecast...The river is expected to rise above flood stage late this evening to a crest of 23.6 feet just after midnight tonight. It will then fall below flood stage just after midnight tonight. - Flood stage is 23.0 feet. - Flood History...No available flood history. - http://www.weather.gov/safety/flood |