Alert archive / California / Wind Advisories in 2015
Wind Advisory 8, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this wind advisory at Dec 12, 2015, 1:08 PM PST for 8 counties in California. It took effect at Dec 13, 2015, 6:00 AM PST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Dec 12, 2015, 1:08 PM PST (21:08 UTC)
- In effect from
- Dec 13, 2015, 6:00 AM PST
- Expired
- Dec 13, 2015, 1:52 PM PST
- In force
- 8 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, San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA, Sonoma County, CA
The radar
The San Francisco radar (KMUX), 69 km from the middle of the area, began a volume at 21:10 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, 9.1 hours before the alert went out and 6 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
- 1048 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
374 WWUS76 KMTR 122108 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 108 PM PST SAT DEC 12 2015 ...STRONG AND GUSTY WINDS EXPECTED SUNDAY... .A FRONTAL PASSAGE WILL PRODUCE STRONG AND GUSTY SOUTHWESTERLY WINDS SUNDAY MORNING THROUGH EARLY AFTERNOON. WINDS WILL BE STRONGEST OVER THE NORTH AND EAST BAY HILLS. CAZ507-131200- /O.NEW.KMTR.WI.Y.0008.151213T1200Z-151213T2000Z/ NORTH BAY MOUNTAINS- 108 PM PST SAT DEC 12 2015 ...WIND ADVISORY IN EFFECT FROM 4 AM TO NOON PST SUNDAY... THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 4 AM TO NOON PST SUNDAY. * TIMING...SUNDAY MORNING. * WINDS...SUSTAINED SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS 45 TO 50 MPH. * IMPACTS...DROUGHT STRESSED TREES MAY TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER LINES AND LEAD TO POWER OUTAGES. DRIVING MAY BE DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. 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. && $$ CAZ511-131200- /O.NEW.KMTR.WI.Y.0008.151213T1800Z-151213T2200Z/ EAST BAY HILLS AND DIABLO RANGE- 108 PM PST SAT DEC 12 2015 ...WIND ADVISORY IN EFFECT FROM 10 AM TO 2 PM PST SUNDAY... THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 10 AM TO 2 PM PST SUNDAY. * TIMING...LATE MORNING THROUGH EARLY AFTERNOON SUNDAY. * WINDS...SUSTAINED SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS 45 TO 50 MPH. * IMPACTS...DROUGHT STRESSED TREES MAY TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER LINES AND LEAD TO POWER OUTAGES. DRIVING MAY BE DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
3 follow-up statements
023 WWUS76 KMTR 130046 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 446 PM PST SAT DEC 12 2015 ...STRONG AND GUSTY WINDS EXPECTED FROM SUNDAY MORNING THROUGH SUNDAY EVENING... .STRONG AND GUSTY SOUTHWESTERLY WINDS WILL DEVELOP AHEAD OF A COLD FRONT ON SUNDAY MORNING. WINDS WILL THEN SWITCH TO THE NORTHWEST BEHIND THE FRONT SUNDAY AFTERNOON AND REMAIN STRONG AND GUSTY THROUGH SUNDAY EVENING. WINDS WILL BE STRONGEST NEAR THE COAST AND IN THE HILLS. CAZ505-131400- /O.EXB.KMTR.WI.Y.0008.151213T1400Z-151214T0600Z/ COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- 446 PM PST SAT DEC 12 2015 ...WIND ADVISORY IN EFFECT FROM 6 AM TO 10 PM PST SUNDAY... THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 6 AM TO 10 PM PST SUNDAY. * TIMING...SUNDAY MORNING THROUGH SUNDAY EVENING. * LOCATION...COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE. * WINDS...SUSTAINED SOUTHWEST WINDS OF 20 TO 30 MPH SWITCHING TO THE NORTHWEST IN THE AFTERNOON. WIND GUSTS OF 40 TO 50 MPH. * IMPACTS...DROUGHT STRESSED TREES MAY TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER LINES AND LEAD TO POWER OUTAGES. DRIVING MAY BE DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. 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. && $$ CAZ006-508-509-512-131400- /O.EXB.KMTR.WI.Y.0008.151213T1600Z-151214T0600Z/ SAN FRANCISCO-SAN FRANCISCO BAY SHORELINE- SAN FRANCISCO PENINSULA COAST-SANTA CRUZ MOUNTAINS- 446 PM PST SAT DEC 12 2015 ...WIND ADVISORY IN EFFECT FROM 8 AM TO 10 PM PST SUNDAY... THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 8 AM TO 10 PM PST SUNDAY. * TIMING...SUNDAY MORNING THROUGH SUNDAY EVENING. * LOCATION...THE CITY OF SAN FRANCISCO...THE SAN FRANCISCO BAY SHORELINE...THE SAN FRANCISCO PENINSULA COAST...AND THE SANTA CRUZ MOUNTAINS. * WINDS...SUSTAINED SOUTHWEST WINDS OF 20 TO 30 MPH SWITCHING TO THE NORTHWEST IN THE AFTERNOON. WIND GUSTS OF 40 TO 50 MPH. * IMPACTS...DROUGHT STRESSED TREES MAY TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER LINES AND LEAD TO POWER OUTAGES. DRIVING MAY BE DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OF AT LEAST 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ CAZ507-131400- /O.EXT.KMTR.WI.Y.0008.151213T1400Z-151214T0600Z/ NORTH BAY MOUNTAINS- 446 PM PST SAT DEC 12 2015 ...WIND ADVISORY NOW IN EFFECT FROM 6 AM TO 10 PM PST SUNDAY... * TIMING...SUNDAY MORNING THROUGH SUNDAY EVENING. * LOCATION...NORTH BAY MOUNTAINS. * WINDS...SUSTAINED SOUTHWEST WINDS OF 20 TO 30 MPH SWITCHING TO THE NORTHWEST IN THE AFTERNOON. WIND GUSTS OF 40 TO 50 MPH. * IMPACTS...DROUGHT STRESSED TREES MAY TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER LINES AND LEAD TO POWER OUTAGES. DRIVING MAY BE DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OF AT LEAST 45 MPH ARE EXPECTED. WINDS THIS STRONG BRING DOWN TREES AND POWER LINES AND RESULT IN POWER OUTAGES. && $$ CAZ511-131400- /O.EXT.KMTR.WI.Y.0008.151213T1600Z-151214T0600Z/ EAST BAY HILLS AND DIABLO RANGE- 446 PM PST SAT DEC 12 2015 ...WIND ADVISORY NOW IN EFFECT FROM 8 AM TO 10 PM PST SUNDAY... * TIMING...SUNDAY MORNING THROUGH SUNDAY EVENING. * LOCATION...EAST BAY HILLS AND THE DIABLO RANGE. * WINDS...SUSTAINED SOUTHWEST WINDS OF 20 TO 30 MPH SWITCHING TO THE NORTHWEST IN THE AFTERNOON. WIND GUSTS OF 40 TO 50 MPH. * IMPACTS...DROUGHT STRESSED TREES MAY TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER LINES AND LEAD TO POWER OUTAGES. DRIVING MAY BE DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OF AT LEAST 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN BRING DOWN TREES AND POWER LINES RESULTING IN POWER OUTAGES. && $$
532 WWUS76 KMTR 131300 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 500 AM PST SUN DEC 13 2015 ...STRONG AND GUSTY WINDS EXPECTED FROM SUNDAY MORNING THROUGH SUNDAY EVENING... .STRONG AND GUSTY SOUTHWESTERLY WINDS WILL DEVELOP AHEAD OF A COLD FRONT ON SUNDAY MORNING. WINDS WILL THEN SWITCH TO THE NORTHWEST BEHIND THE FRONT SUNDAY AFTERNOON AND REMAIN STRONG AND GUSTY THROUGH SUNDAY EVENING. WINDS WILL BE STRONGEST NEAR THE COAST AND IN THE HILLS. CAZ505-507-140600- /O.CON.KMTR.WI.Y.0008.151213T1400Z-151214T0600Z/ COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- NORTH BAY MOUNTAINS- 500 AM PST SUN DEC 13 2015 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * TIMING...SUNDAY MORNING THROUGH SUNDAY EVENING. * LOCATION...NORTH BAY COAST AND MOUNTAINS. * WINDS...SUSTAINED SOUTHWEST WINDS OF 20 TO 30 MPH SWITCHING TO THE NORTHWEST IN THE AFTERNOON AND REMAINING STRONG INTO THE EVENING HOURS. WIND GUSTS OF 40 TO 50 MPH ARE FORECAST. * IMPACTS...DROUGHT STRESSED TREES MAY TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER LINES AND LEAD TO POWER OUTAGES. DRIVING MAY BE DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. 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. && $$ CAZ006-508-509-511-512-140600- /O.CON.KMTR.WI.Y.0008.151213T1600Z-151214T0600Z/ SAN FRANCISCO-SAN FRANCISCO BAY SHORELINE- SAN FRANCISCO PENINSULA COAST-EAST BAY HILLS AND DIABLO RANGE- SANTA CRUZ MOUNTAINS- 500 AM PST SUN DEC 13 2015 ...WIND ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 10 PM PST THIS EVENING... * TIMING...SUNDAY MORNING THROUGH SUNDAY EVENING. * LOCATION...THE CITY OF SAN FRANCISCO...SAN FRANCISCO BAY SHORELINE...SAN FRANCISCO PENINSULA COAST...THE SANTA CRUZ MOUNTAINS...AND THE EAST BAY HILLS. * WINDS...SUSTAINED SOUTHWEST WINDS OF 20 TO 30 MPH SWITCHING TO THE NORTHWEST IN THE AFTERNOON AND REMAINING STRONG INTO THE EVENING HOURS. WIND GUSTS OF 40 TO 50 MPH ARE FORECAST. * IMPACTS...DROUGHT STRESSED TREES MAY TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER LINES AND LEAD TO POWER OUTAGES. DRIVING MAY BE DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OF AT LEAST 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
179 WWUS76 KMTR 132152 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO CA 152 PM PST SUN DEC 13 2015 CAZ006-505-507>509-511-512-132300- /O.CAN.KMTR.WI.Y.0008.000000T0000Z-151214T0600Z/ 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- 152 PM PST SUN DEC 13 2015 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS CANCELLED THE WIND ADVISORY. ALTHOUGH GUSTY WINDS ARE FORECAST TO CONTINUE THROUGH THE EVENING, THEY ARE NO LONGER EXPECTED TO REACH ADVISORY LEVELS. $$
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 12, 2:39 AM PST | Gale Watch | MTR | 12 hr | |
| Dec 12, 2:51 PM PST | Gale Warning | MTR | 48 hr | |
| Dec 12, 2:51 PM PST | Small Craft Advisory | MTR | 22 hr | |
| Dec 12, 2:51 PM PST | Small Craft Advisory | MTR | 4 days |
Nearby
Wind Advisories in California, 2015Every wind advisory in 2015
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.