#norcalwx — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #norcalwx, aggregated by home.social.
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DENSE FOG ADVISORY,
UNTIL 9 AM (5/8) THIS MORNINGVisibility one quarter mile or less in dense fog.
WHERE: North SF Bay Interior Valleys. #California
IMPACTS: Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS: If driving, slow down, use your headlights, and leave plenty of
distance ahead of you. -
DENSE FOG ADVISORY
UNTIL 9 AM PDT THIS MORNING (4/21).Visibility less than one mile in dense fog.
WHERE: North SF Bay Interior Valleys. #California
IMPACTS: Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS: If driving, slow down, use your headlights, and leave plenty of
distance ahead of you. -
More notes from the live chat by Weather West (Dr. Daniel Swain) on the chaos being wrought upon the National Weather Service:
Dept of Commerce terminated an agreement with a university regarding weather/climate research stated "this cooperative agreement promotes exaggerated climate threats...promoting anxiety..."
A doc from the White House states that the proposed close the NOAA office that does and funds research on weather and oceanographic. NASA is targeted for larger cuts regarding planetary research. Many cooperative research centers will be closed. Proposed is the canceling the partnership between NASA and NOAA, which would end weather satellite updates.
#weathter #ExtremeWeather #WeatherForecasts #NOAA #NWS #DOGE #CAwx #CaliforniaWeather #NorCalWx
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At 4 PM (on 4/14/25) Weather West (Dr. Daniel Swain) is discussing the impacts of the destruction of the National Oceanographic Atmospheric Association and the National Weather Service.
#CAwx #CaliforniaWeather #NOAA #NWW #WeatherForecasts #ExtremeWeather #NorCalWx #Weather
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...FROST ADVISORY, IN EFECT UNTIL 9 AM PDT THIS MORNING (3/18)
...FROST ADVISORY, IN EFFECT FROM 2 AM TO 9 AM WEDNESDAY (3/19) .WHAT: For the first Frost Advisory, temps as low as 30 F will result in frost. For the second Frost Advisory, temps as low as 36 F will result in frost.
WHERE: North SF Bay Interior Mountains & North Bay Interior Valleys. #California
IMPACTS: Cold will be hazardous to sensitive populations such as unhoused individuals. Cold conditions can lead to hypothermia with prolonged exposure.
PRECAUTIONARY/PREPAREDNESS ACTIONS: Take steps now to protect tender plants from the cold. Be sure to cover or tend to sensitive plants and vegetation as they may be damaged by frost.
#FrostAdvisory #SFBay #California #CaliforniaWeather #CAwx #NorCalWx
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FROST ADVISORY,
FROM 2 AM TO 9 AM TUESDAY (3/17)Temps as low as 32 F will result in frost formation.
WHERE: North SF Bay Interior Valleys. #California
IMPACTS: Cold will be hazardous to sensitive populations such as unhoused individuals. Cold conditions can lead to hypothermia with prolonged exposure.
PRECAUTIONARY/PREPAREDNESS ACTIONS: Take steps now to protect tender plants from the cold.
#CAwx #CaliforniaWeather #SFBay #NorCalWx #Frost #FrostAdvisory
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WIND ADVISORY,
FROM 11 AM THIS MORNING (3/16) TO 11 PM THIS EVENINGSouth winds 15 to 25 mph with gusts up to 45 mph expected.
WHERE: Coastal North SF Bay Including #PointReyes National Seashore & North Bay Interior Valleys. #California
IMPACTS: Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS: Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.Secure loose outdoor objects that could be blown around or damaged by the wind.
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WIND ADVISORY,
FROM 8 AM THIS MORNING (3/12) TO 8 PM THIS EVENINGSouth winds 20 to 30 mph with gusts up to 55 mph expected.
WHERE: The SF Bay Area & #California Central Coast.
IMPACTS: Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS: Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.Secure loose outdoor objects that could be blown around or damaged
by the wind. -
FROST ADVISORY,
FROM 1 AM TO 9 AM FRIDAY (3/7)Temp as low as 32 F will result in frost.
Temps in the higher elevations may drop down to as low as 28 F.WHERE: Interior #Monterey County & #SantaLucia Range, #SanBenito County & #Cholame Hills in southeast Monterey
County, North SF Bay Interior Valleys, Eastern #SantaClara Hills, East Bay Hills & southern #Salinas Valley/Arroyo Seco and Lake San Antonio. #CaliforniaMPACTS: Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. Cold conditions will be hazardous to sensitive populations such as unhoused individuals. Cold conditions can lead to hypothermia with prolonged exposure.
PRECAUTIONARY/PREPAREDNESS ACTIONS: Take steps now to protect tender plants from the cold.
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DENSE FOG ADVISORY,
UNTIL 9 AM THIS MORNING (2/25)Visibility quarter mile or less in dense fog.
WHERE: Coastal North SF Bay Including #PointReyes National Seashore, East Bay Interior Valleys, North SF Bay Interior Valleys, #SanFrancisco & San Francisco Bay Shoreline. #SFBay #California
IMPACTS: Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS: If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.If commuting, allow extra drive time to reach your destination
safely. -
FROST ADVISORY,
FROM 1 AM TO 9 AM SATURDAY (2/15)Temps as low as 32 F will result in frost formation.
WHERE: Interior #Monterey County & #SantaLucia Range, #SanBenito County & #Cholame Hills in Southeast Monterey
County, North SF Bay Interior Valleys, Eastern #SantaClara Hills & Southern #Salinas Valley/Arroyo Seco & Lake San Antonio. #SFBay #CaliforniaIMPACTS: Cold will be hazardous to sensitive populations such as unhoused individuals. Cold conditions can lead to hypothermia with prolonged exposure.
PRECAUTIONARY/PREPAREDNESS ACTIONS: Take steps now to protect tender plants from the cold.
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FLOOD WATCH,
IN EFFECT THRU SUNDAY EVE (2/16)Flooding caused by excessive rainfall continues to be possible.
WHERE: Entire North SF Bay. #California
IMPACTS: Excessive runoff may result in flooding of rivers, creeks, streams & low-lying & flood-prone locations. Creeks & streams may rise out of their banks. Flooding may occur in poor drainage & urban areas. Low-water crossings may be flooded. Area creeks & streams are running high & could flood with more heavy rain & continuous runoff.
*ADDITIONAL DETAILS:
- Excessive runoff & elevated levels on area rivers, streams & creeks as well as near-saturated soil will resulting in an increased flood potential as the Atmospheric River brings moderate to heavy rain to the region.- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS: Monitor later forecasts & be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action.
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FLOOD WATCH,
FROM 10 PM THIS EVE (2/12) THRU SATURDAY EVEFlooding caused by excessive rainfall possible.
WHERE: Entire North SF Bay. #California
IMPACTS: Excessive runoff may result in flooding of rivers, creeks, streams & other low-lying locations. Creeks & streams may rise out of their banks. Flooding may occur in poor drainage & urban areas. Low-water crossings may be flooded. Area creeks & streams are elevated & could flood with more heavy rain.
ADDITIONAL DETAILS:
- Elevated levels on area rivers, streams & creeks as well as near-saturated soil will result in an increased flood potential as the next Atmospheric River brings moderate to heavy rain to the region beginning tonight & into Thursday.
- http://www.weather.gov/safety/floodPRECAUTIONARY/PREPAREDNESS ACTIONS: Monitor later forecasts & be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action if flooding develop.
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WIND ADVISORY,
FROM 3 AM THURSDAY (2/12P TO 10 AM FRIDAYWHAT: Southwest winds 20 to 30 mph with gusts up to 55 mph expected. Isolated gusts up to 60 mph possible in the higher elevation.
WHERE: East SF Bay & #SanFrancisco Bay Shoreline, Interior Central Coast, #SantaClara Valley & Eastern Hills, North SF Bay Interior Mountains & North SF Bay Interior Valleys. #California
IMPACTS: Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The combination of wind and moist soils will increase the risk for downed trees.
PRECAUTIONARY/PREPAREDNESS ACTIONS: Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution. -
HIGH WIND WATCH,
FROM WEDNESDAY EVE (2/12) THRU FRIDAY MORNSouthwest winds 25 to 35 mph with gusts up to 60 mph possible.
WHERE: East #SFBay & #SanFrancisco Bay Shoreline, Interior Central Coast, North SF Bay Interior Mountains & Valleys, #SantaClara Valley & Eastern Hills & #SantaCruz Mountains. #California
IMPACTS: Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult,
especially for high profile vehicles. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees.PRECAUTIONARY/PREPAREDNESS ACTIONS: Monitor the latest forecasts and warnings for updates.
Secure loose outdoor objects that could be blown around or damaged
by the wind. -
FREEZE WARNING,
FROM 1 AM TO 9 AM SATURDAY (2/8)Sub-freezing temperatures as low as 30 F expected.
WHERE: North SF Bay Interior Valleys. #California
IMPACTS: Cold conditions will be hazardous to sensitive populations such as unhoused individuals. Cold Conditions can lead to hypothermia with prolonged exposure.
PRECAUTIONARY/PREPAREDNESS ACTIONS: Take steps now to protect tender plants from the cold. Be sure to open sink cabinet doors and/or drip faucets. This may help reduce or prevent damage to uninsulated pipes and other
plumbing. -
Where to find sandbags in #Napa county, #Calfornia :
https://www.countyofnapa.org/DocumentCenter/View/20444/Sandbag-Locations-PDF?bidId=Cal OES, where you can find #sandbags in your county, #California :
https://news.caloes.ca.gov/where-you-can-find-sandbags-in-your-county/ -
FLOOD WATCH,
MONDAY (2/3) AFTERNOON THRU LATE TUESDAY NIGHTFlooding due to excessive rainfall
possible.WHERE: #Sonoma, #Napa, #Marin, #SanFrancisco, #SanMateo, #Contra Costa, #Alameda, #SantaClara, #SantaCruz, #SanBenito, #Monterey Counties. #California
IMPACTS: Runoff may result in flooding of rivers, creeks, streams & low-lying areas, & poor drainage & urban areas.
ADDITIONAL DETAILS:
-Rain in past few days has helped to saturate soils & prime portions of the Bay Area for increased flood potential. Moderate to heavy rain is expected Monday into Tues, bringing additional flooding concerns to the Central Coast, where heaviest rainfall is likely within the Santa Cruz Mntns & Santa Lucia Range.
- http://www.weather.gov/safety/floodPRECAUTIONARY/PREPAREDNESS ACTIONS: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop. -
FLOOD WATCH,
FROM NOON TODAY (1/31) THRU SUNDAY EVENINGFlooding caused by excessive rainfall possible.
WHERE: The following counties: #Sonoma, #Napa, #Marin, #ContraCosta, #Alameda, #SanFrancisco, #SanMateo, #SantaClara, #SantaCruz. #Callifornia
IMPACTS: Excessive runoff may result in flooding of rivers, creeks, streams & low-lying and flood-prone locations. Flooding may occur in poor drainage & urban areas.
ADDITIONAL DETAILS:
- Excessive rainfall is forecast through the region. Around 1-3 inches of rain is expected across the warned region by Sunday afternoon, with locally higher totals up to 5 inches in the higher elevations.- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS: Monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
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FROST ADVISORY, FROM 1 AM TO 9 AM PST WEDNESDAY (1/29)
FREEZE WATCH NOW IN EFFECT FROM LATE WEDNESDAY NIGHT (1/29) THRU THURSDAY MORN
*WHAT: For the Frost Advisory, temps as low as 34 F will result in frost formation. For the Freeze Watch, near-freezing temps as low as 32 F possible.
* WHERE: #SantaClara Valley, North SF Bay Interior Mountains, North Bay Interior Valleys & Northern #Salinas Valley, #HollisterValley & #Carmel Valley. #California
IMPACTS: Frost & freeze conditions could kill crops, other sensitive vegetation & 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS: 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.#FreezeWatch #Freeze #California #SFBay #CAwx #CaliforniaWeather #NorCalWx
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FREEZE WATCH,
FROM LATE SUNDAY (1/26) NIGHT THRU WEDNESDAY MORNING.Sub-freezing temperatures as low as 31 possible.
WHERE: #Monterey Bay & #BigSur Coast, #SantaCruz Mountains, #SantaClara Valley, North SF Bay Interior Valleys, #SanFrancisco Bay Shoreline, East Bay Interior Valleys & Northern #Salinas Valley, #Hollister Valley & #Carmel Valley. #California
IMPACTS.: Frost & freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
PRECAUTIONARY/PREPAREDNESS ACTIONS: 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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FROST ADVISORY, FROM 1 AM TO 9 AM SATURDAY (1/25)
FREEZE WATCH, FROM LATE SATURDAY NIGHT THRU TUES
MORN (1/28)WHAT: For the Frost Advisory, temps as low as 31 F results in frost formation. For the Freeze Watch, sub-freezing temps as low as 29 F possible.
WHERE: East Bay Hills & Valleys, Most of #SanBenito County & #Cholame Hills in Southeast #Monterey County, North SF Bay Interior Valleys, Eastern #SantaClara Hills & Southern #Salinas
Valley, #ArroyoSeco & Lake #SanAntonio. #CaliforniaIMPACTS: Frost & freeze conditions could kill crops & sensitive vegetation & damage unprotected outdoor plumbing. Cold conditions will be hazardous to sensitive populations, e.g. unhoused individuals. Cold can lead to hypothermia w prolonged exposure.
PRECAUTIONARY/PREPAREDNESS ACTIONS: Take steps now to protect tender plants. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.
#CAwx #CaliforniaWeather #SFBay #NorCalWx #Freeze #FreezeWatch #FrostAdvisory
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FREEZE WARNING,
FROM MIDNIGHT TONIGHT TO 10 AM
WEDNESDAY (01/22)Sub-freezing temperatures as low as 28 F expected.
WHERE: Southern #Salinas Valley, #ArroyoSeco & Lake #SanAntonio
& North SF Bay Interior Valleys. #CaliforniaIMPACTS: Cold conditions will be hazardous to sensitive populations such as unhoused individuals. Cold Conditions can lead to hypothermia with prolonged exposure. Freeze conditions could
kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.PRECAUTIONARY/PREPAREDNESS ACTIONS: Take steps now to protect people, pets, pipes and plants from the
freezing temperatures.#FreezeWarning #Freeze #CaliforniaWeather #CAwx #SFBay #NorCalWx
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FROST ADVISORY,
FROM 1 AM TO 9 AM PST TUESDAY (1/21)Temp as low as 33 F will result in frost.
WHERE: #SantaClara Valley & Eastern Hills, Interior #Monterey County & #SantaLucia Range, Most of #SanBenito County & #Cholame Hills in Southeast #Monterey County, North
SF Bay Interior Valleys, East SF Bay Interior Valleys & Northern
#Salinas Valley, #Hollister Valley & Carmel Valley. #CaliforniaIMPACTS: Cold conditions will be hazardous to sensitive populations such as unhoused individuals. Cold Conditions can lead to hypothermia with prolonged exposure.
ADDITIONAL DETAILS: Temps in the vicinity of Fort Hunter Liggett and in portions of far southeastern Monterey County will experience locally colder temperatures as low as 29 degrees.
PRECAUTIONARY/PREPAREDNESS ACTIONS: Take steps now to protect tender plants from the cold.
Be sure to cover or tend to sensitive plants and vegetation as they
may be damaged by frost. -
FROST ADVISORY,
FROM 1 AM TO 9 AM MONDAY (1/20).WHAT: Temperatures as low as 33 F will result in frost.
WHERE: #SantaClara Valley & Eastern Hills, The East SF Bay Hills & Valleys, Interior #Monterey County & #SantaLucia Range, North Bay Interior Valleys & Northern #Salinas Valley/ #Hollister Valley & #Carmel Valley. #SFBay #California
IMPACTS: Cold conditions will be hazardous to sensitive populations such as unhoused individuals. Cold Conditions can lead to hypothermia with prolonged exposure.
ADDITIONAL DETAILS: Portions of far southern Monterey County, in the vicinity of Fort Hunter Liggett, and the highest peaks in the elevated terrain of eastern Santa Clara & #Alameda Counties may see locally colder weather closer to 30 F.
PRECAUTIONARY/PREPAREDNESS ACTIONS: Take steps now to protect tender plants from the cold.
Be sure to cover or tend to sensitive plants and vegetation as they
may be damaged by frost. -
DENSE FOG ADVISORY,
UNTIL 9 AM THIS MORNING (1/19)Visibility one quarter mile or less in dense fog.
WHERE: The #SantaClara Valley, and North SF Bay Interior Valleys. #California
IMPACTS: Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS: If driving, slow down, use your headlights, and leave plenty of
distance ahead of you. -
WIND ADVISORY,
FROM 2 AM MONDAY (1/13) TO 10 AM TUESDAY (1/14)Northerly to northeasterly winds 25 to 35 mph with gusts up to 55 mph expected. Winds will be stronger at higher elevations.
WHERE: North SF Bay Interior Mountains. #California
IMPACTS: Gusty winds will blow around unsecured objects. Tree limbs could be blown down & a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS: Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution. -
WIND ADVISORY,
UNTIL 10 AM SUNDAY (1/811)North winds 20 to 30 mph with gusts up to 50 mph. Winds will be stronger at higher elevations.
WHERE: North #SFBay Interior Mountains, East Bay Hills, #SantaCruz Mountains & The Eastern #SantaClara Hills. #California
IMPACTS: Gusty winds will blow around unsecured objects. Tree limbs could be blown down & a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS.: Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.Secure loose outdoor objects that could be blown around or damaged
by the wind. -
WIND ADVISORY
FROM 7 PM THIS EVE (1/6) TO 10 AM WEDNESDAYNorth winds 10 to 20 mph with gusts up to 45 mph.
WHERE: #Marin Hills, #SantaCruz Mountains, North #SFBay Interior Mountains, #SanFrancisco Peninsula Coast, Eastern #SantaClara Hills & #EastBay Hills #California
IMPACTS: Gusty winds will blow around unsecured objects. Tree limbs could be blown down & a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS:
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. -
DENSE FOG ADVISORY
UNTIL 10 AM THIS MORN (1/6)Visibility 1/4 mile or less in dense fog.
WHERE: #Marin Hills, Coastal North SF Bay, #PointReyes National Seashore & North Bay Interior Valleys. #SFBay #California
IMPACTS: Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS.:
*If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
*Patchy dense fog will result in sudden changes in visibility.
*Visibility at times will fall below one-quarter of a mile.
*Use your low beam headlights, slow down & be prepared for periods of hazardous driving conditions.