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NOAA's National Weather Service
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WARNINGS - WATCHES - ADVISORIES - STATEMENTS
Updates every 15 Minutes
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 FROST ADVISORY |
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| Napa County | ||
| Effective: Mon, 1/27 11:57am | Severity: Minor | |
| Updated: January 27, 2025 6:00 pm | Urgency: Expected | |
| Expires: Mon, 1/27 10:00pm | Certainty: Likely | |
| Areas Affected: North Bay Interior Mountains - North Bay Interior Valleys - San Francisco Bay Shoreline - East Bay Interior Valleys - Santa Cruz Mountains - Santa Clara Valley Including San Jose - East Bay Hills - Northern Monterey Bay - Southern Monterey Bay and Big Sur Coast | ||
Alert
Details:
* WHAT...For the Frost Advisory, temperatures as low as 32 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 32 possible. * WHERE...The East Bay and San Francisco Bay Shoreline, Monterey Bay and the Big Sur Coast, The Santa Cruz Mountains, The Santa Clara Valley, North Bay Interior Mountains, and North Bay Interior Valleys. * WHEN...For the Frost Advisory, from 1 AM to 9 AM PST Tuesday. For the Freeze Watch, from late Tuesday night through Thursday morning. * 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. Information: Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. |
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 FREEZE WATCH |
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| Napa County | ||
| Effective: Mon, 1/27 11:57am | Severity: Severe | |
| Updated: January 27, 2025 6:00 pm | Urgency: Future | |
| Expires: Mon, 1/27 10:00pm | Certainty: Possible | |
| Areas Affected: North Bay Interior Mountains - North Bay Interior Valleys - San Francisco Bay Shoreline - East Bay Interior Valleys - Santa Cruz Mountains - Santa Clara Valley Including San Jose - East Bay Hills - Northern Monterey Bay - Southern Monterey Bay and Big Sur Coast | ||
Alert
Details:
* WHAT...For the Frost Advisory, temperatures as low as 32 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 32 possible. * WHERE...The East Bay and San Francisco Bay Shoreline, Monterey Bay and the Big Sur Coast, The Santa Cruz Mountains, The Santa Clara Valley, North Bay Interior Mountains, and North Bay Interior Valleys. * WHEN...For the Frost Advisory, from 1 AM to 9 AM PST Tuesday. For the Freeze Watch, from late Tuesday night through Thursday morning. * 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. Information: Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. |
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