Alert archive / California / High Wind Warnings in 2012
High Wind Warning 1, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this high wind warning at Nov 27, 2012, 1:53 PM PST for 5 counties in California. It took effect at Nov 28, 2012, 4:00 AM PST. It was in force for 6 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Nov 27, 2012, 1:53 PM PST (21:53 UTC)
- In effect from
- Nov 28, 2012, 4:00 AM PST
- Expired
- Nov 28, 2012, 10:26 AM PST
- In force
- 6 hr
- Issued by
- NWS San Francisco Bay Area, CA
Counties City and County of San Francisco, CA, Marin County, CA, San Mateo County, CA, Santa Cruz County, CA, Sonoma County, CA
The radar
The San Francisco radar (KMUX), 86 km from the middle of the area, began a volume at 21:51 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 28, 9:45 AM PST | NON-TSTM WND DMG | Pacifica, CA | POWER OUTAGES NEAR PACIFICA DUE TO WIND |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Oakland, CA (KOAK), launched 12:00Z, 9.9 hours before the alert went out and 26 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 551 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
088 WWUS76 KMTR 272153 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 153 PM PST TUE NOV 27 2012 ...STRONG AND GUSTY WINDS DURING THE WEDNESDAY MORNING COMMUTE FOR MOST OF THE SAN FRANCISCO AND MONTEREY BAY REGION... .A STRONG PACIFIC COLD FRONT WILL MOVE ONSHORE EARLY WEDNESDAY MORNING. AS THE FRONT PASSES THROUGH THE REGION STRONG AND GUSTY SOUTHERLY WINDS ARE EXPECTED...WITH THE WINDS SHIFTING SOUTHWEST BEHIND THE FRONT. DAMAGING WIND GUSTS WILL BE STRONG ENOUGH TO BRING DOWN WEAKENED TREES AND OR BRANCHES WHICH CAN LEAD TO POWER OUTAGES. THE STRONGEST WINDS ARE EXPECTED NEAR THE COAST WHERE GUSTS FROM 55 TO 65 MPH ARE EXPECTED. CAZ006-505-509-280600- /O.UPG.KMTR.WI.Y.0005.121128T1200Z-121128T1900Z/ /O.NEW.KMTR.HW.W.0001.121128T1200Z-121128T1900Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST- 153 PM PST TUE NOV 27 2012 ...HIGH WIND WARNING IN EFFECT FROM 4 AM TO 11 AM PST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 4 AM TO 11 AM PST WEDNESDAY. THE WIND ADVISORY IS NO LONGER IN EFFECT. * TIMING: FROM 4 AM WEDNESDAY THROUGH 11 AM WEDNESDAY...AS A COLD FRONT PASSES OVER THE REGION. * WINDS: SOUTHERLY WIND GUSTS FROM 55 TO 65 MPH WITH LOCAL GUSTS TO 75 MPH POSSIBLE ALONG THE COAST. * LOCATIONS: THE NORTH BAY COAST...SAN FRANCISCO AND SAN FRANCISCO PENINSULA COAST. * IMPACTS: THE FIRST STRONG COLD FRONT OF THE SEASON WILL LIKELY BRING DOWN WEAK TREES AND BRANCHES...LEADING TO POSSIBLE POWER OUTAGES. DRIVING HIGH PROFILE VEHICLES WILL BE DIFFICULT. SECURE OUTDOOR ITEMS AROUND YOUR RESIDENCE AND OTHER LOCATIONS SUCH AS CONSTRUCTION SITES SHOULD CONSIDER SECURING LOOSE OBJECTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. && $$ CAZ506>508-510>512-517-528>530-280600- /O.CON.KMTR.WI.Y.0005.121128T1200Z-121128T1900Z/ NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS- SAN FRANCISCO BAY SHORELINE-EAST BAY INTERIOR VALLEYS- EAST BAY HILLS AND DIABLO RANGE-SANTA CRUZ MOUNTAINS- SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST- NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY- NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST- 153 PM PST TUE NOV 27 2012 ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 11 AM PST WEDNESDAY... A WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 11 AM PST WEDNESDAY. * TIMING: FROM 4 AM WEDNESDAY THROUGH 11 AM WEDNESDAY...AS A COLD FRONT PASSES OVER THE REGION. * WINDS: SOUTHERLY WIND GUSTS FROM 45 TO 55 MPH WITH LOCAL GUSTS TO 70 MPH POSSIBLE OVER THE RIDGES AND ALONG THE COAST. * LOCATIONS: NORTH AND EAST BAY VALLEYS AND MOUNTAINS...SAN FRANCISCO BAY SHORELINE...SANTA CRUZ MOUNTAINS...MONTEREY BAY REGION INCLUDING THE SANTA LUCIA MOUNTAINS. * IMPACTS: THE FIRST STRONG COLD FRONT OF THE SEASON WILL LIKELY BRING DOWN WEAK TREES AND BRANCHES...LEADING TO POSSIBLE POWER OUTAGES. DRIVING HIGH PROFILE VEHICLES WILL BE DIFFICULT. SOME OF THE HIGHER PASSES SUCH AS PACHECO AND ALTAMONT WILL BE ESPECIALLY WINDY. SECURE OUTDOOR ITEMS AROUND YOUR RESIDENCE AND OTHER LOCATIONS SUCH AS CONSTRUCTION SITES SHOULD CONSIDER SECURING LOOSE OBJECTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OF 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
3 follow-up statements
292 WWUS76 KMTR 280408 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 808 PM PST TUE NOV 27 2012 ...STRONG AND GUSTY WINDS DURING THE WEDNESDAY MORNING COMMUTE FOR MOST OF THE SAN FRANCISCO AND MONTEREY BAY REGION... .A STRONG PACIFIC COLD FRONT WILL MOVE ONSHORE EARLY WEDNESDAY MORNING. AS THE FRONT PASSES THROUGH THE REGION STRONG AND GUSTY SOUTHERLY WINDS ARE EXPECTED...WITH THE WINDS SHIFTING SOUTHWEST BEHIND THE FRONT. DAMAGING WIND GUSTS WILL BE STRONG ENOUGH TO BRING DOWN WEAKENED TREES AND OR BRANCHES WHICH CAN LEAD TO POWER OUTAGES. THE STRONGEST WINDS ARE EXPECTED NEAR THE COAST WHERE GUSTS FROM 55 TO 65 MPH ARE EXPECTED. CAZ006-505-509-281400- /O.CON.KMTR.HW.W.0001.121128T1200Z-121128T1900Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST- 808 PM PST TUE NOV 27 2012 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 AM TO 11 AM PST WEDNESDAY... A HIGH WIND WARNING REMAINS IN EFFECT FROM 4 AM TO 11 AM PST WEDNESDAY. * TIMING: FROM 4 AM WEDNESDAY THROUGH 11 AM WEDNESDAY...AS A COLD FRONT PASSES OVER THE REGION. * WINDS: SOUTHERLY WIND GUSTS FROM 55 TO 65 MPH WITH LOCAL GUSTS TO 75 MPH POSSIBLE ALONG THE COAST. * LOCATIONS: THE NORTH BAY COAST...SAN FRANCISCO AND SAN FRANCISCO PENINSULA COAST. * IMPACTS: THE FIRST STRONG COLD FRONT OF THE SEASON WILL LIKELY BRING DOWN WEAK TREES AND BRANCHES...LEADING TO POSSIBLE POWER OUTAGES. DRIVING HIGH PROFILE VEHICLES WILL BE DIFFICULT. SECURE OUTDOOR ITEMS AROUND YOUR RESIDENCE AND OTHER LOCATIONS SUCH AS CONSTRUCTION SITES SHOULD CONSIDER SECURING LOOSE OBJECTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. && $$ CAZ506>508-510>512-517-528>530-281400- /O.CON.KMTR.WI.Y.0005.121128T1200Z-121128T1900Z/ NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS- SAN FRANCISCO BAY SHORELINE-EAST BAY INTERIOR VALLEYS- EAST BAY HILLS AND DIABLO RANGE-SANTA CRUZ MOUNTAINS- SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST- NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY- NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST- 808 PM PST TUE NOV 27 2012 ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 11 AM PST WEDNESDAY... A WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 11 AM PST WEDNESDAY. * TIMING: FROM 4 AM WEDNESDAY THROUGH 11 AM WEDNESDAY...AS A COLD FRONT PASSES OVER THE REGION. * WINDS: SOUTHERLY WIND GUSTS FROM 45 TO 55 MPH WITH LOCAL GUSTS TO 70 MPH POSSIBLE OVER THE RIDGES AND ALONG THE COAST. * LOCATIONS: NORTH AND EAST BAY VALLEYS AND MOUNTAINS...SAN FRANCISCO BAY SHORELINE...SANTA CRUZ MOUNTAINS...MONTEREY BAY REGION INCLUDING THE SANTA LUCIA MOUNTAINS. * IMPACTS: THE FIRST STRONG COLD FRONT OF THE SEASON WILL LIKELY BRING DOWN WEAK TREES AND BRANCHES...LEADING TO POSSIBLE POWER OUTAGES. DRIVING HIGH PROFILE VEHICLES WILL BE DIFFICULT. SOME OF THE HIGHER PASSES SUCH AS PACHECO AND ALTAMONT WILL BE ESPECIALLY WINDY. SECURE OUTDOOR ITEMS AROUND YOUR RESIDENCE AND OTHER LOCATIONS SUCH AS CONSTRUCTION SITES SHOULD CONSIDER SECURING LOOSE OBJECTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OF 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
816 WWUS76 KMTR 281249 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 449 AM PST WED NOV 28 2012 ...STRONG AND GUSTY WINDS DURING THE WEDNESDAY MORNING COMMUTE FOR MOST OF THE SAN FRANCISCO BAY AREA AND MONTEREY BAY AREA... .A STRONG PACIFIC COLD FRONT WILL MOVE ONSHORE BY LATE WEDNESDAY MORNING. STRONG AND GUSTY SOUTHEAST WINDS WILL OCCUR AHEAD OF THE FRONT. WIND GUSTS WILL BE STRONG ENOUGH TO BRING DOWN WEAKENED TREES AND BRANCHES. POWER OUTAGES ARE LIKELY. STRONGEST WINDS ARE FORECAST TO OCCUR NEAR THE COAST WHERE GUSTS FROM 50 TO 60 MPH ARE EXPECTED. CAZ006-505-509-281900- /O.CON.KMTR.HW.W.0001.000000T0000Z-121128T1900Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST- 449 AM PST WED NOV 28 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING FOR COASTAL AREAS FROM SONOMA COUNTY SOUTH THROUGH SAN MATEO COUNTY. * TIMING: THROUGH 11 AM WEDNESDAY. WINDS WILL BE MOST INTENSE AROUND MID MORNING. * WINDS: SOUTHERLY WIND GUSTS FROM 50 TO 60 MPH WITH LOCAL GUSTS TO 70 MPH POSSIBLE NEAR THE COAST. * LOCATIONS: THE NORTH BAY COAST...SAN FRANCISCO AND SAN FRANCISCO PENINSULA COAST. * IMPACTS: A POWERFUL PACIFIC STORM WILL PRODUCE STRONG WINDS WHICH WILL LIKELY BRING DOWN WEAK TREES AND BRANCHES...LEADING TO POWER OUTAGES. DRIVING HIGH PROFILE VEHICLES WILL BE DIFFICULT. LOOSE OUTDOOR ITEMS SHOULD BE SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. && $$ CAZ506>508-510>512-517-528>530-281900- /O.CON.KMTR.WI.Y.0005.000000T0000Z-121128T1900Z/ NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS- SAN FRANCISCO BAY SHORELINE-EAST BAY INTERIOR VALLEYS- EAST BAY HILLS AND DIABLO RANGE-SANTA CRUZ MOUNTAINS- SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST- NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY- NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST- 449 AM PST WED NOV 28 2012 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... A WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING FOR MOST INLAND AREAS OF THE SAN FRANCISCO BAY AREA AS WELL AS COASTAL AREAS OF THE MONTEREY BAY AREA. * TIMING: THROUGH 11 AM WEDNESDAY. WINDS WILL BE MOST INTENSE AROUND MID MORNING. * WINDS: SOUTHERLY WIND GUSTS FROM 40 TO 50 MPH WITH LOCAL GUSTS TO 60 MPH POSSIBLE OVER THE RIDGES AND NEAR THE COAST. * LOCATIONS: NORTH AND EAST BAY VALLEYS AND MOUNTAINS...SAN FRANCISCO BAY SHORELINE...SANTA CRUZ MOUNTAINS...MONTEREY BAY REGION INCLUDING THE SANTA LUCIA MOUNTAINS. * IMPACTS: A POWERFUL PACIFIC STORM WILL PRODUCE STRONG WINDS WHICH WILL LIKELY BRING DOWN WEAK TREES AND BRANCHES...LEADING TO POWER OUTAGES. DRIVING HIGH PROFILE VEHICLES WILL BE DIFFICULT. LOOSE OUTDOOR ITEMS SHOULD BE SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OF AT LEAST 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
335 WWUS76 KMTR 281826 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1026 AM PST WED NOV 28 2012 ...GUSTY WINDS EXPECTED TO CONTINUE FOR A LARGE PORTION OF THE SAN FRANCISCO BAY AREA AND MONTEREY BAY AREA TODAY... CAZ006-505-509-282200- /O.CAN.KMTR.HW.W.0001.000000T0000Z-121128T1900Z/ /O.EXB.KMTR.WI.Y.0005.000000T0000Z-121128T2200Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- SAN FRANCISCO PENINSULA COAST- 1026 AM PST WED NOV 28 2012 ...WIND ADVISORY IN EFFECT UNTIL 2 PM PST THIS AFTERNOON... ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 2 PM PST THIS AFTERNOON. THE HIGH WIND WARNING HAS BEEN CANCELLED. * TIMING: THROUGH 2 PM TODAY. * WINDS: SOUTHERLY WIND GUSTS FROM 35 TO 45 MPH WITH LOCAL GUSTS TO 60 MPH POSSIBLE OVER THE RIDGES AND NEAR THE COAST. * LOCATIONS:SAN FRANCISCO AND COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE * IMPACTS: A POWERFUL PACIFIC STORM WILL PRODUCE STRONG WINDS WHICH WILL LIKELY BRING DOWN WEAK TREES AND BRANCHES...LEADING TO POWER OUTAGES. DRIVING HIGH PROFILE VEHICLES WILL BE DIFFICULT. LOOSE OUTDOOR ITEMS SHOULD BE SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OF AT LEAST 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ CAZ506>508-510>512-517-528>530-282200- /O.EXT.KMTR.WI.Y.0005.000000T0000Z-121128T2200Z/ NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS- SAN FRANCISCO BAY SHORELINE-EAST BAY INTERIOR VALLEYS- EAST BAY HILLS AND DIABLO RANGE-SANTA CRUZ MOUNTAINS- SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST- NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY- NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST- 1026 AM PST WED NOV 28 2012 ...WIND ADVISORY NOW IN EFFECT UNTIL 2 PM PST THIS AFTERNOON... THE WIND ADVISORY IS NOW IN EFFECT UNTIL 2 PM PST THIS AFTERNOON. * TIMING: THROUGH 2 PM TODAY. * WINDS: SOUTHERLY WIND GUSTS FROM 35 TO 45 MPH WITH LOCAL GUSTS TO 60 MPH POSSIBLE OVER THE RIDGES AND NEAR THE COAST. * LOCATIONS: NORTH AND EAST BAY VALLEYS AND MOUNTAINS...SAN FRANCISCO BAY SHORELINE...SANTA CRUZ MOUNTAINS...MONTEREY BAY REGION INCLUDING THE SANTA LUCIA MOUNTAINS. * IMPACTS: A POWERFUL PACIFIC STORM WILL PRODUCE STRONG WINDS WHICH WILL LIKELY BRING DOWN WEAK TREES AND BRANCHES...LEADING TO POWER OUTAGES. DRIVING HIGH PROFILE VEHICLES WILL BE DIFFICULT. LOOSE OUTDOOR ITEMS SHOULD BE SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OF AT LEAST 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 27, 3:39 AM PST | Wind Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 34 hr |
Nearby
High Wind Warnings in California, 2012Every high wind warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.