Active Weather Alerts
Flood Advisory
Issued: 8:48 AM Mar. 22, 2023 – National Weather Service
...FLOOD ADVISORY NOW IN EFFECT UNTIL 1145 AM PDT THIS MORNING... * WHAT...Urban and small stream flooding caused by excessive rainfall continues. * WHERE...A portion of northern California, including the following counties, Alameda, San Francisco, San Mateo and Santa Clara. * WHEN...Until 1145 AM PDT Wednesday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 147 AM PDT, Doppler radar indicated heavy rain. This will cause urban and small stream flooding. Between 0.8 and 1.5 inches of rain have fallen. - Additional rainfall amounts of 0.1 to 0.3 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... San Jose, San Francisco, Oakland, Fremont, Hayward, Sunnyvale, Santa Clara, Daly City, San Mateo, San Leandro, Redwood City, Mountain View, Alameda, Union City, Milpitas, Palo Alto, South San Francisco, Newark, San Bruno and Pacifica. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. &&
Flood Advisory
Issued: 8:47 AM Mar. 22, 2023 – National Weather Service
...FLOOD ADVISORY NOW IN EFFECT UNTIL 11 AM PDT THIS MORNING... * WHAT...Small stream flooding caused by excessive rainfall continues. * WHERE...A portion of northern California, including the following counties, San Mateo, Santa Clara and Santa Cruz. * WHEN...Until 1100 AM PDT Wednesday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. River or stream flows are elevated. * ADDITIONAL DETAILS... - At 146 AM PDT, Doppler radar indicated heavy rain due to thunderstorms. This will cause small stream flooding. Between 0.75 and 3 inches of rain have fallen. - Additional rainfall amounts of 0.3 to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Redwood City, Palo Alto, Santa Cruz, Cupertino, Menlo Park, Saratoga, Los Gatos, Scotts Valley, Half Moon Bay, Capitola, Live Oak, Los Altos Hills, Atherton, Woodside, Boulder Creek, Ben Lomond, Felton, Twin Lakes, Soquel and Opal Cliffs. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. &&
Flood Warning
Issued: 10:19 AM Mar. 22, 2023 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL 945 AM PDT THIS MORNING... * WHAT...Small stream flooding caused by excessive rainfall continues. * WHERE...A portion of northern California, including the following county, San Mateo. * WHEN...Until 945 AM PDT 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. * ADDITIONAL DETAILS... - At 319 AM PDT, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. Between 0.8 and 1.7 inches of rain have fallen. - Additional rainfall amounts of 0.2 to 0.5 inches are possible in the warned area. - Some locations that will experience flooding include... Half Moon Bay. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. &&
Small Craft Advisory
Issued: 9:35 AM Mar. 22, 2023 – National Weather Service
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 AM PDT THURSDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THURSDAY TO 9 AM PDT FRIDAY... * WHAT...For the first Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and seas 8 to 10 ft expected, resulting in hazardous conditions near harbor entrances. For the second Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt expected, resulting in hazardous conditions near harbor entrances. * WHERE...Coastal Waters from Point Reyes to Pigeon Point California out to 10 nm. * WHEN...For the Small Craft Advisory, from 3 PM this afternoon to 9 AM PDT Thursday. For the Small Craft Advisory, from 9 PM Thursday to 9 AM PDT Friday. * IMPACTS...Conditions will be hazardous to small craft especially when navigating in or near harbor entrances. PRECAUTIONARY/PREPAREDNESS ACTIONS... Small craft should use extreme caution when navigating in or near harbor entrances. &&
Small Craft Advisory
Issued: 9:35 AM Mar. 22, 2023 – National Weather Service
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 AM PDT THURSDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THURSDAY TO 9 AM PDT FRIDAY... * WHAT...For the first Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and seas 8 to 10 ft expected, resulting in hazardous conditions near harbor entrances. For the second Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt expected, resulting in hazardous conditions near harbor entrances. * WHERE...Coastal Waters from Point Reyes to Pigeon Point California out to 10 nm. * WHEN...For the Small Craft Advisory, from 3 PM this afternoon to 9 AM PDT Thursday. For the Small Craft Advisory, from 9 PM Thursday to 9 AM PDT Friday. * IMPACTS...Conditions will be hazardous to small craft especially when navigating in or near harbor entrances. PRECAUTIONARY/PREPAREDNESS ACTIONS... Small craft should use extreme caution when navigating in or near harbor entrances. &&
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