Alert archive / California / Wind Advisories in 2017
Wind Advisory 17, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this wind advisory at May 5, 2017, 12:14 PM PDT for 9 counties in California. It took effect at May 5, 2017, 5:00 PM PDT. It was in force for 17 hr.
The area
The counties it named.
The facts
- Issued
- May 5, 2017, 12:14 PM PDT (19:14 UTC)
- In effect from
- May 5, 2017, 5:00 PM PDT
- Expired
- May 6, 2017, 9:45 AM PDT
- In force
- 17 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, Monterey County, CA, San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA, Sonoma County, CA
The radar
The San Francisco radar (KMUX), 48 km from the middle of the area, began a volume at 19:13 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, 7.2 hours before the alert went out and 22 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
- 832 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -96 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
462 WWUS76 KMTR 051914 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 1214 PM PDT Fri May 5 2017 CAZ006-505-507>509-511-512-517-529-530-061200- /O.NEW.KMTR.WI.Y.0017.170506T0000Z-170507T0400Z/ 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 the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 1214 PM PDT Fri May 5 2017 ...WIND ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 9 PM PDT SATURDAY... The National Weather Service in San Francisco has issued a Wind Advisory, which is in effect from 5 PM this afternoon to 9 PM PDT Saturday. * WINDS...Northwesterly winds of 20 to 35 mph with local gusts over 45 mph. * LOCATION...Highest speeds will be near the coast and San Francisco Bay plus higher elevation locations. * IMPACTS...Gusty winds will make driving difficult especially for drivers of high profile vehicles. Downed trees and powerlines are possible during strong winds. Stronger winds will lead to an elevated fire danger. 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. && $$
2 follow-up statements
902 WWUS76 KMTR 061213 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 513 AM PDT Sat May 6 2017 CAZ006-505-507>509-511-512-517-529-530-070400- /O.CON.KMTR.WI.Y.0017.000000T0000Z-170507T0400Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Mountains-San Francisco Bay Shoreline- San Francisco Peninsula Coast-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 513 AM PDT Sat May 6 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... a Wind Advisory remains in effect until 9 PM PDT this evening. * WINDS...Northwesterly winds of 20 to 35 mph with local gusts over 45 mph. * LOCATION...Highest speeds will be near the coast and San Francisco Bay plus higher elevation locations. * IMPACTS...Gusty winds will make driving difficult especially for drivers of high profile vehicles. Downed trees and powerlines are possible during strong winds. Stronger winds will lead to an elevated fire danger. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$
961 WWUS76 KMTR 061645 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 945 AM PDT Sat May 6 2017 CAZ006-505-507>509-511-512-517-529-530-061745- /O.CAN.KMTR.WI.Y.0017.000000T0000Z-170507T0400Z/ 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 the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 945 AM PDT Sat May 6 2017 ...WIND ADVISORY IS CANCELLED... The National Weather Service in San Francisco has cancelled the Wind Advisory. While winds remain breezy with gusts to around 35 to 40 MPH near the coast and in the higher elevations, wind speeds are likely to remain below advisory criteria. Expect breezy conditions to persist through this evening and potentially into the overnight in the North Bay Mountains before diminishing region-wide on Sunday. $$
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 2:28 PM PDT | Small Craft Advisory | MTR | 5 hr |
Nearby
Wind Advisories in California, 2017Every wind advisory in 2017
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.