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  Storm Center: Weather Alerts: Warnings


 
My Location: Sanibel, FL 
 
Current Time: 02:14:02 AM EST
Other Alerts  
Weather Alert
    Other Weather Alerts
Type Hydrologic Outlook
Issued By NWS San Francisco CA
Issuing Time Mon, 10 Feb 2025 16:31:00 PST
Broadcast Time Mon, 10 Feb 2025 16:31:00 PST
Valid Until Tue, 11 Feb 2025 11:00:00 PST
Brief Description Hydrologic Outlook
Detailed Description ESFMTR * WHAT. Unsettled weather is forecast to return to the region this week. The first round of rain is progged to impact areas mainly south of the Golden Gate Tuesday night into Wednesday. Rainfall amounts will range from 0.10"-0.25" over inland and valley locations to 0.25"-0.75" along the coastal mountain ranges. Highest precipitation is forecast over the Santa Cruz Mountains and Santa Lucia range. A stronger and significantly wetter system will move into the area Wednesday night into Thursday. Models agree that this system will pack a bigger punch with strong upper level jet support and ample moisture associated with an atmospheric river that is taking aim at the Central Coast. This storm will not only bring heavy rainfall but also potentially damaging winds. Given the current location of the moisture axis and dynamic features, this system will generally favor areas from about San Francisco southward across the Central Coast. Overall good news in terms of annual rainfall since southern areas are a bit behind the curve so far this water year (since Oct 1). An interesting tidbit to include; the Central Coast watershed which runs along the coast roughly from Monterey to Arroyo Grande is about 4.37" below normal for the water year to date. The current forecast for that watershed by the end of the week is about 3"-6". There is a slight chance (at least 15%) of rainfall rates resulting in flash flooding conditions area-wide on Thursday. It is likely that there will be more of a focus as the event nears and more information about convective rainfall rates becomes clear from high res guidance. The system does appear to be rather progressive and should move through the region relatively quickly, thus hindering any increase in the probability of flash flooding for now. Guidance keeps this vigorous wave open and embedded in the flow, so there is relatively low stall potential. As far as rainfall totals go, the North Bay will still see respectable totals in the 2"-4" range, the greater Bay Area will see a range of 1.5"-3" (less in the rainshadowed South Bay, more along the peninsula), 4"-6" and locally up to 8" in the Santa Cruz Mtns, 2"-3" across the Central Coast counties, and 3"-6" along the Big Sur Coast, locally up to 8". * WHERE. Bay Area and Central Coast. Latest model guidance suggests the Bay Area and Central Coast will receive the greatest accumulation of precipitation with the heaviest rainfall expected over the Santa Cruz Mountains and Santa Lucia range. * WHEN. Tuesday night through Thursday. Light to locally moderate rainfall expected Tuesday night into Wednesday. Moderate to locally heavy rain expected Wednesday night into Thursday. * ADDITIONAL DETAILS. In addition to the moderate rainfall and localized ponding of water in low-lying or poorly drained areas, such as freeway offramps. Locally strong and gusty winds may result in downed trees, and potential power outages. Confidence is high that we will receive rainfall from these systems however, confidence is moderate with respect to the exact location and timing of the most intense rainfall. Details regarding this storm will likely change as the system nears. Therefore, stay tuned to the latest forecast for the most up to date weather information.
       
All Alerts
Region Alert
Kentucky Flood Warning (3)
Indiana,Kentucky Flood Warning (9)
Illinois,Kentucky Flood Warning
California Flood Warning (4)
Alabama Flood Warning (2)
Texas Flood Warning (17)
Mississippi Flood Warning
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California Winter Weather Warning, Watch, or Advisory (28)
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Oklahoma Winter Weather Warning, Watch, or Advisory (2)
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Nebraska Winter Weather Warning, Watch, or Advisory (9)
Kansas Winter Weather Warning, Watch, or Advisory (34)
Pennsylvania,West Virginia Winter Weather Warning, Watch, or Advisory (7)
Michigan Winter Weather Warning, Watch, or Advisory (10)
Wisconsin Winter Weather Warning, Watch, or Advisory
Colorado Winter Weather Warning, Watch, or Advisory (12)
Delaware,Maryland Winter Weather Warning, Watch, or Advisory (25)
New Jersey Winter Weather Warning, Watch, or Advisory (5)
Oregon Winter Weather Warning, Watch, or Advisory (8)
Alaska Winter Weather Warning, Watch, or Advisory
Indiana,Kentucky,Ohio Winter Weather Warning, Watch, or Advisory (42)
New York Winter Weather Warning, Watch, or Advisory (13)
District of Columbia,Maryland,Virginia Winter Weather Warning, Watch, or Advisory (5)
Iowa,Illinois,Missouri Winter Weather Warning, Watch, or Advisory (22)
Arkansas Winter Weather Warning, Watch, or Advisory (10)
Tennessee,Virginia Winter Weather Warning, Watch, or Advisory (4)
California Flash Flood Watch (2)
Coastal California Public Severe Weather Alert (5)
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Coastal Oregon-California Public Severe Weather Alert (3)
Montana Coastal Flood Warning, Watch, or Statement (2)
Kentucky Coastal Flood Warning, Watch, or Statement (14)
Arkansas Coastal Flood Warning, Watch, or Statement
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Kentucky Flood Statement (7)
Arkansas,Louisiana,Texas Flood Statement
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California Flood Statement (4)
Michigan Special Weather Statement (2)
Alaska Special Weather Statement
Idaho,Washington Special Weather Statement
Montana Non Precipitation Warning, Watch, or Statement (56)
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Idaho Non Precipitation Warning, Watch, or Statement (10)
Minnesota,Wisconsin Non Precipitation Warning, Watch, or Statement (26)
Oregon Non Precipitation Warning, Watch, or Statement (30)
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Coastal California-Oregon Non Precipitation Warning, Watch, or Statement (14)
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Iowa,Minnesota,South Dakota Non Precipitation Warning, Watch, or Statement (4)
Arizona Non Precipitation Warning, Watch, or Statement (4)
Louisiana,Texas Non Precipitation Warning, Watch, or Statement (4)
North Dakota Non Precipitation Warning, Watch, or Statement (17)
Florida Non Precipitation Warning, Watch, or Statement
New Mexico,Texas Non Precipitation Warning, Watch, or Statement (5)
New Mexico Red Flag Warning
Arizona Red Flag Warning (2)
Coastal Massachusetts Marine Weather Statement (3)
Coastal North Carolina-South Carolina,Coastal South Carolina Marine Weather Statement (25)
Coastal North Carolina Marine Weather Statement
Coastal North Carolina Marine Weather Statement
Pamlico Sound - North Carolina Marine Weather Statement (6)
Coastal Oregon-California Marine Weather Statement (5)
Coastal California-Oregon Marine Weather Statement (65)
Coastal Maine,Coastal Atlantic (south to NC) Marine Weather Statement (9)
Galveston Bay (Texas) Marine Weather Statement
Lake Superior Marine Weather Statement (2)
Lake Michigan - Michigan,Lake Michigan Marine Weather Statement (2)
Federated States of Micronesia Marine Weather Statement (12)
Hawaii Marine Weather Statement (4)
Lake Ontario Marine Weather Statement (5)
Guam Coastal Waters,Rota Coastal Waters,Tinian Coastal Waters,Saipan Coastal Waters Marine Weather Statement
Guam,Mauritius Marine Weather Statement (5)
Koror Palau Coastal Waters,Yap Coastal Waters Marine Weather Statement
Koror Palau Coastal Waters,Yap Coastal Waters Marine Weather Statement
Guam Coastal Waters,Rota Coastal Waters,Tinian Coastal Waters,Saipan Coastal Waters Marine Weather Statement
Lake Ontario Marine Weather Statement
Lake Ontario Marine Weather Statement
Lake Ontario Marine Weather Statement
Guam Coastal Waters,Rota Coastal Waters,Tinian Coastal Waters,Saipan Coastal Waters Marine Weather Statement
Koror Palau Coastal Waters,Yap Coastal Waters Marine Weather Statement
Lake Ontario Marine Weather Statement
Koror Palau Coastal Waters,Yap Coastal Waters Marine Weather Statement
Guam Coastal Waters,Rota Coastal Waters,Tinian Coastal Waters,Saipan Coastal Waters Marine Weather Statement
Lake Ontario Marine Weather Statement
Lake Ontario Marine Weather Statement
Koror Palau Coastal Waters,Yap Coastal Waters Marine Weather Statement
Guam Coastal Waters,Rota Coastal Waters,Tinian Coastal Waters,Saipan Coastal Waters Marine Weather Statement
Lake Ontario Marine Weather Statement
California River Statement
Kentucky River Statement
       
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