Freeze Warning issued December 30 at 8:32AM PST until December 31 at 10:00AM PST by NWS San Francisco CA
* WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...Interior Monterey County and the Santa Lucia Range, Most of San Benito County and the Cholame Hills in Southeast Monterey County, North Bay Interior Mountains, North Bay Interior Valleys, Eastern Santa Clara Hills, and Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...From 8 PM this evening to 10 AM PST Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Cold conditions will be hazardous to sensitive populations such as unhoused individuals. Cold Conditions can lead to hypothermia with prolonged exposure.
Flood Advisory issued December 30 at 7:00AM PST until December 30 at 1:45PM PST by NWS San Francisco CA
* WHAT...Small stream flooding caused by excessive rainfall continues. * WHERE...A portion of northern California, including the following county, central Sonoma. * WHEN...Until 145 PM PST Monday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 700 AM PST, Green Valley Creek at Martinelli Road continues to be in minor flood stage with minor flooding likely in the vicinity of this creek. Between 0.5 and 1.2 inches of rain have fallen. - Flooding impacts will continue along Green Valley Creek, but no substantial additional rainfall is expected. - Some locations that will experience flooding include...
Flood Advisory issued December 29 at 11:03AM PST until December 29 at 1:45PM PST by NWS San Francisco CA
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Western Santa Cruz. * WHEN...Until 145 PM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1059 AM PST, Doppler radar indicated moderate to heavy rain occuring earlier this morning with light rain continuing into the afternoon. Minor flooding has been reported in the advisory area. Between 0.5 and 1.5 inches of rain have fallen over the last 6 hours. - Additional rainfall amounts up to 0.3 inches are expected over the area through this afternoon. Minor flooding is expected to continue. - Some locations that
Flood Advisory issued December 29 at 10:40AM PST until December 29 at 1:30PM PST by NWS San Francisco CA
* WHAT...Colgan Creek near Sebastopol has reached minor flood stage with minor flooding possible in nearby areas. * WHERE...A portion of northern California, including the following county, southeastern Sonoma along Colgan Creek near Sebastopol. * WHEN...Until 130 PM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos. * ADDITIONAL DETAILS... - At 1035 AM PST, moderate to heavy rain moved through Sonoma County early this morning which resulted in Colgan Creek near Sebastopol reaching minor flood stage. Between 0.5 and 1 inch of rain has fallen. - Flooding impacts will continue
Flood Advisory issued December 29 at 9:58AM PST until December 29 at 12:15PM PST by NWS San Francisco CA
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...A portion of northern California, including the following county, northwestern Alameda. * WHEN...Until 1215 PM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Ponding of water in urban or other areas is occurring or is imminent. * ADDITIONAL DETAILS... - At 958 AM PST, Doppler radar indicated heavy rain. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 0.2 and 0.5 inches of rain have fallen. - Additional rainfall amounts up to 0.1 inches are expected over the area. This additional rain will result in
Flood Advisory issued December 29 at 9:40AM PST until December 29 at 1:30PM PST by NWS San Francisco CA
* WHAT...Small stream flooding caused by excessive rainfall continues. * WHERE...A portion of northern California, including the following county, central Sonoma. * WHEN...Until 130 PM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos. * ADDITIONAL DETAILS... - At 935 AM PST, Green Valley Creek at Martinelli Road continues to be in minor flood stage with minor flooding likely in the vicinity of this creek. Between 0.5 and 1.2 inches of rain have fallen. - Scattered showers producing light rain will continue into the afternoon with up to an additional 0.1
Flood Advisory issued December 28 at 11:03AM PST until December 28 at 7:00PM PST by NWS San Francisco CA
* WHAT...Small stream flooding caused by earlier excessive rainfall continues. * WHERE...Areas along Green Valley Creek near Forestville across Sonoma County in Central California. * WHEN...Until 700 PM PST Saturday. * IMPACTS...Dangerous flows over low-water crossings and water over roadways. Some low-water crossings and roads are impassable. * ADDITIONAL DETAILS... - At 1059 AM PST, Emergency management reported ongoing flooding along Green Valley Creek due to 1 to 4 inches of rain that have fallen over the last 72 hours. While water levels continue to gradual fall, area roadways remain flooded and/or closed. - Green Valley Creek is the most
High Surf Advisory issued December 27 at 9:43AM PST until December 29 at 4:00AM PST by NWS San Francisco CA
* WHAT...Large breaking waves of 20 to 30 feet. * WHERE...San Francisco, Coastal North Bay Including Point Reyes National Seashore, San Francisco Peninsula Coast, Northern Monterey Bay and Southern Monterey Bay and the Big Sur Coast. * WHEN...Until 4 AM PST Sunday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion can be expected. Large waves can sweep across the beach without warning, pulling people into the sea from rocks, jetties and beaches. Sudden immersion in cold water can result in cold water shock even for the most experienced swimmers. Cold water shock can result in dramatic changes in
Flood Warning issued December 27 at 2:29AM PST until December 27 at 2:30PM PST by NWS San Francisco CA
* WHAT...Small stream flooding caused by excessive rainfall is expected. * WHERE...A portion of northern California, including the following county, central Sonoma. * WHEN...Until 230 PM PST Friday. * 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 227 AM PST, gauge reports indicated Colgan Creek near Sebastopol is in moderate flood stage. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts up to 0.2 inches are possible in the warned area. - Some
High Surf Advisory issued December 26 at 5:34AM PST until December 29 at 4:00PM PST by NWS San Francisco CA
* WHAT...Large breaking waves of 20 to 30 feet. * WHERE...Pacific Coast. * WHEN...From 10 AM Thursday to 4 PM PST Sunday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion can be expected. Large waves can sweep across the beach without warning, pulling people into the sea from rocks, jetties and beaches. Sudden immersion in cold water can result in cold water shock even for the most experienced swimmers. Cold water shock can result in dramatic changes in breathing, heart rate and blood pressure, greatly increasing the risk of drowning in rough open waters.