Alert archive / California / Wind Advisories in 2011
Wind Advisory 2, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this wind advisory at Feb 15, 2011, 5:22 PM PST for 9 counties in California. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Feb 15, 2011, 5:22 PM PST (01:22 UTC)
- Expired
- Feb 16, 2011, 1:00 AM 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, 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 01:22 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 00:00Z, 1.4 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
- 1236 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 221 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
015 WWUS76 KMTR 160122 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 522 PM PST TUE FEB 15 2011 ...STRONG AND GUSTY SOUTHEAST WINDS UNTIL 1 AM PST EARLY WEDNESDAY MORNING... CAZ006-505>512-529-160900- /O.NEW.KMTR.WI.Y.0002.110216T0122Z-110216T0900Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS- SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST- EAST BAY INTERIOR VALLEYS-EAST BAY HILLS AND DIABLO RANGE- SANTA CRUZ MOUNTAINS-NORTHERN MONTEREY BAY- 522 PM PST TUE FEB 15 2011 ...WIND ADVISORY IN EFFECT UNTIL 1 AM PST WEDNESDAY... A STRONG COLD FRONT WILL SLIDE SOUTHEAST ACROSS THE BAY AREA THIS EVENING WITH HEAVY WINDS AND RAIN. * TIMING: STRONG AND GUSTY WINDS UNTIL 1 AM PST EARLY WEDNESDAY MORNING. * WINDS: SOUTHEAST WINDS 35 TO 45 MPH WITH GUSTS TO 50 MPH POSSIBLE. * IMPACTS: STRONG GUSTY WINDS WILL MAKE DRIVING HIGH PROFILE VEHICLES DIFFICULT. IN ADDITION...WINDS OF THIS STRENGTH ALONG WITH HEAVY DOWNPOURS CAN BRING DOWN LARGE TREES...POWER LINES AND WEAKENED TREE LIMBS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 TO 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ CANEPA
1 follow-up statement
666 WWUS76 KMTR 160859 NPWMTR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1259 AM PST WED FEB 16 2011 CAZ006-505>512-529-161000- /O.EXP.KMTR.WI.Y.0002.000000T0000Z-110216T0900Z/ SAN FRANCISCO- COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE- NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS- SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST- EAST BAY INTERIOR VALLEYS-EAST BAY HILLS AND DIABLO RANGE- SANTA CRUZ MOUNTAINS-NORTHERN MONTEREY BAY- 1259 AM PST WED FEB 16 2011 ...WIND ADVISORY WILL EXPIRE AT 1 AM PST EARLY THIS MORNING... THE WIND ADVISORY FOR THE GREATER SAN FRANCISCO BAY AREA WILL EXPIRE AT 1 AM PST. WIND SPEEDS WITH THE PASSING COLD FRONT HAVE STARTED TO DECREASE...ALTHOUGH LOCALLY GUSTY WINDS ARE EXPECTED TO CONTINUE THROUGH THE NIGHT. $$
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 5:41 PM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 20 hr |
Nearby
Wind Advisories in California, 2011Every wind advisory in 2011
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.