Alert archive / California / Wind Advisories in 2012
Wind Advisory 7, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this wind advisory at Dec 1, 2012, 10:23 AM PST for 9 counties in California. It took effect at Dec 1, 2012, 10:00 PM PST. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Dec 1, 2012, 10:23 AM PST (18:23 UTC)
- In effect from
- Dec 1, 2012, 10:00 PM PST
- Expired
- Dec 2, 2012, 12:00 PM PST
- In force
- 14 hr
- Issued by
- NWS San Francisco Bay Area, CA
Counties Alameda County, CA, City and County of San Francisco, CA, Contra Costa County, CA, Marin County, CA, Napa County, CA, San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA, Sonoma County, CA
The radar
The San Francisco radar (KMUX), 78 km from the middle of the area, began a volume at 18:25 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.
The nearest sounding before it
Oakland, CA (KOAK), launched 12:00Z, 6.4 hours before the alert went out and 9 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
- 634 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 290 m²/s²
- 0-3 km storm-relative helicity
- 433 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
309 WWUS76 KMTR 011823 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1023 AM PST SAT DEC 1 2012 ...STRONG AND GUSTY WINDS EXPECTED TO MOVE ACROSS MOST OF THE SAN FRANCISCO BAY AND MONTEREY BAY AREAS... CAZ006-505-507-509-511-512-529-020230- /O.NEW.KMTR.WI.Y.0007.121202T0600Z-121202T1800Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- NORTH BAY MOUNTAINS-SAN FRANCISCO PENINSULA COAST- EAST BAY HILLS AND DIABLO RANGE-SANTA CRUZ MOUNTAINS- NORTHERN MONTEREY BAY- 1023 AM PST SAT DEC 1 2012 ...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST SUNDAY... THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST SUNDAY. * TIMING: WINDS WILL INCREASE LATE THIS EVENING AND CONTINUE THROUGH 10 AM SUNDAY MORNING. * WINDS: SOUTHERLY WINDS SUSTAINED BETWEEN 20 AND 30 MPH...WITH GUSTS TO OVER 50 MPH. A FEW OF THE HIGHER LOCATIONS MAY SEE WIND GUSTS NEAR 60 MPH. * IMPACTS: THE STRONG WINDS IN COMBINATION WITH SATURATED SOILS FROM ABUNDANT RAIN OVER THE PAST FEW DAYS WILL LEAD TO DOWNED TREES AND POWER LINES. IN ADDITION...THOSE DRIVING IN THE HIGHER ELEVATIONS MAY EXPERIENCE DIFFICULTY WHILE DRIVING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && RILEY $$
2 follow-up statements
652 WWUS76 KMTR 020336 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 736 PM PST SAT DEC 1 2012 ...STRONG AND GUSTY WINDS EXPECTED EXPECTED SATURDAY NIGHT THROUGH SUNDAY MORNING... .ANOTHER POWERFUL PACIFIC STORM SYSTEM WILL MOVE INTO NORTHERN CALIFORNIA ON SATURDAY NIGHT. SOUTHERLY WINDS WILL INCREASE ACROSS THE SAN FRANCISCO BAY AREA ON SATURDAY EVENING...AND BECOME STRONG AND GUSTY BY MIDNIGHT. STRONG AND GUSTY WINDS WILL THEN CONTINUE THROUGH SUNDAY MORNING. WINDS WILL DECREASE SIGNIFICANTLY AROUND MIDDAY SUNDAY. CAZ508-022000- /O.EXB.KMTR.WI.Y.0007.121202T0600Z-121202T2000Z/ SAN FRANCISCO BAY SHORELINE- 736 PM PST SAT DEC 1 2012 ...WIND ADVISORY IN EFFECT UNTIL NOON PST SUNDAY... THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL NOON PST SUNDAY...FOR THE SAN FRANCISCO BAY SHORELINE. * TIMING: WINDS WILL INCREASE LATE SATURDAY EVENING AND CONTINUE THROUGH SUNDAY MORNING. * WINDS: SUSTAINED SOUTHERLY WINDS OF BETWEEN 20 AND 30 MPH ARE EXPECTED ALONG WITH GUSTS UP TO 50 MPH. * IMPACTS: THE STRONG WINDS IN COMBINATION WITH SATURATED SOILS FROM ABUNDANT RAIN OVER THE PAST FEW DAYS WILL LEAD TO DOWNED TREES AND POWER LINES. IN ADDITION...DRIVING HIGH PROFILE VEHICLES MAY BE DIFFICULT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OF AT LEAST 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && DYKEMA $$ CAZ006-505-507-509-511-512-529-022000- /O.EXT.KMTR.WI.Y.0007.121202T0600Z-121202T2000Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- NORTH BAY MOUNTAINS-SAN FRANCISCO PENINSULA COAST- EAST BAY HILLS AND DIABLO RANGE-SANTA CRUZ MOUNTAINS- NORTHERN MONTEREY BAY- 736 PM PST SAT DEC 1 2012 ...WIND ADVISORY NOW IN EFFECT UNTIL NOON PST SUNDAY... THE WIND ADVISORY FOR COASTAL AND MOUNTAINOUS AREAS OF THE SAN FRANCISCO BAY AREA IS NOW IN EFFECT UNTIL NOON PST SUNDAY. * TIMING: WINDS WILL INCREASE LATE THIS EVENING AND CONTINUE THROUGH SUNDAY MORNING. * WINDS: SUSTAINED SOUTHERLY WINDS OF BETWEEN 20 AND 30 MPH ARE EXPECTED ALONG WITH GUSTS UP TO 50 MPH. LOCAL GUSTS UP TO 60 MPH ARE POSSIBLE IN THE HILLS. * IMPACTS: THE STRONG WINDS IN COMBINATION WITH SATURATED SOILS FROM ABUNDANT RAIN OVER THE PAST FEW DAYS WILL LEAD TO DOWNED TREES AND POWER LINES. IN ADDITION...DRIVING HIGH PROFILE VEHICLES MAY BE DIFFICULT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS GUSTS OF AT LEAST 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && DYKEMA $$
184 WWUS76 KMTR 021353 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 553 AM PST SUN DEC 2 2012 ...STRONG AND GUSTY WINDS EXPECTED THIS MORNING... .ANOTHER POWERFUL PACIFIC STORM SYSTEM WILL MOVE INTO NORTHERN CALIFORNIA THIS MORNING. SOUTHERLY WINDS WILL BE STRONG AND GUSTY THROUGH THE MORNING. WINDS WILL DECREASE SIGNIFICANTLY AROUND MIDDAY SUNDAY. CAZ506-022000- /O.EXA.KMTR.WI.Y.0007.000000T0000Z-121202T2000Z/ NORTH BAY INTERIOR VALLEYS- 553 AM PST SUN DEC 2 2012 ...WIND ADVISORY IN EFFECT UNTIL NOON PST TODAY... THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL NOON PST TODAY. * TIMING: THROUGH THE MORNING HOURS. * WINDS: SUSTAINED SOUTHERLY WINDS OF BETWEEN 20 AND 30 MPH ARE EXPECTED ALONG WITH GUSTS UP TO 50 MPH. * IMPACTS: THE STRONG WINDS IN COMBINATION WITH SATURATED SOILS FROM ABUNDANT RAIN OVER THE PAST FEW DAYS WILL LEAD TO DOWNED TREES AND POWER LINES. IN ADDITION...DRIVING HIGH PROFILE VEHICLES MAY BE DIFFICULT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS GUSTS OF AT LEAST 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && DYKEMA $$ CAZ006-505-507>509-511-512-529-022000- /O.CON.KMTR.WI.Y.0007.000000T0000Z-121202T2000Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- NORTH BAY MOUNTAINS-SAN FRANCISCO BAY SHORELINE- SAN FRANCISCO PENINSULA COAST-EAST BAY HILLS AND DIABLO RANGE- SANTA CRUZ MOUNTAINS-NORTHERN MONTEREY BAY- 553 AM PST SUN DEC 2 2012 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... A WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY. * TIMING: THROUGH THE MORNING HOURS. * WINDS: SUSTAINED SOUTHERLY WINDS OF BETWEEN 20 AND 30 MPH ARE EXPECTED ALONG WITH GUSTS UP TO 50 MPH. LOCAL GUSTS UP TO 60 MPH ARE POSSIBLE IN THE HILLS. * IMPACTS: THE STRONG WINDS IN COMBINATION WITH SATURATED SOILS FROM ABUNDANT RAIN OVER THE PAST FEW DAYS WILL LEAD TO DOWNED TREES AND POWER LINES. IN ADDITION...DRIVING HIGH PROFILE VEHICLES MAY BE DIFFICULT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS 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 30, 4:57 PM PST | Small Craft Advisory for Hazardous Seas | MTR | 30 hr | |
| Nov 30, 10:32 PM PST | River Flood Warning | MTR | Napa | 41 hr |
| Nov 30, 10:32 PM PST | River Flood Warning | MTR | Sonoma | 3 days |
| Nov 30, 11:00 PM PST | River Flood Watch | MTR | Napa | 8 hr |
| Dec 1, 5:15 AM PST | River Flood Warning | MTR | Napa | 34 hr |
Nearby
Wind Advisories in California, 2012Every wind advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.