Alert archive / California / Wind Advisories in 2017
Wind Advisory 23, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this wind advisory at Dec 14, 2017, 9:25 AM PST for 5 counties in California. It took effect at Dec 15, 2017, 10:00 PM PST. It was in force for 36 hr.
The area
The counties it named.
The facts
- Issued
- Dec 14, 2017, 9:25 AM PST (17:25 UTC)
- In effect from
- Dec 15, 2017, 10:00 PM PST
- Expired
- Dec 17, 2017, 10:00 AM PST
- In force
- 36 hr
- Issued by
- NWS San Francisco Bay Area, CA
Counties Monterey County, CA, San Benito County, CA, San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA
The radar
The San Francisco radar (KMUX), 33 km from the middle of the area, began a volume at 17:22 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 12:00Z, 5.4 hours before the alert went out and 102 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
- 2472 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- -12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
047 WWUS76 KMTR 141725 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 925 AM PST Thu Dec 14 2017 .A dry system dropping down from the north late on Friday will produce gusty northerly winds across higher elevation sections of our region. CAZ507-511-512-517-518-150800- /O.NEW.KMTR.WI.Y.0023.171216T0600Z-171217T1800Z/ North Bay Mountains-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 925 AM PST Thu Dec 14 2017 ...WIND ADVISORY IN EFFECT FROM 10 PM FRIDAY TO 10 AM PST SUNDAY... The National Weather Service in San Francisco has issued a Wind Advisory, which is in effect from 10 PM Friday to 10 AM PST Sunday. * TIMING: 10 PM Friday to 10 AM Sunday * LOCATION: elevations above 1,000 feet in the San Francisco and Monterey Bay Region. * WINDS: Northerly winds of 20 to 35 mph with local gusts over 50 mph. 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. && $$
5 follow-up statements
190 WWUS76 KMTR 152158 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 158 PM PST Fri Dec 15 2017 .A dry system dropping down from the north late tonight will produce gusty northerly winds across higher elevation sections of our region. CAZ507-511-512-517-518-161200- /O.CON.KMTR.WI.Y.0023.171216T0600Z-171217T1800Z/ North Bay Mountains-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 158 PM PST Fri Dec 15 2017 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST SUNDAY... a Wind Advisory remains in effect from 10 PM this evening to 10 AM PST Sunday. * TIMING: 10 PM Friday to 10 AM Sunday * LOCATION: elevations above 1,000 feet in the San Francisco and Monterey Bay Region. * WINDS: Northerly winds of 20 to 35 mph with local gusts over 50 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$
371 WWUS76 KMTR 161203 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 403 AM PST Sat Dec 16 2017 .Gusty northerly winds will increase across higher elevation sections of our region through tonight. CAZ507-511-512-517-518-170400- /O.CON.KMTR.WI.Y.0023.000000T0000Z-171217T1800Z/ North Bay Mountains-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 403 AM PST Sat Dec 16 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... a Wind Advisory remains in effect until 10 AM PST Sunday. * TIMING: Through 10 AM Sunday * LOCATION: elevations above 1,000 feet in the San Francisco and Monterey Bay Region. * WINDS: Northerly winds of 20 to 35 mph with local gusts over 50 mph. 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. && $$
872 WWUS76 KMTR 170352 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 752 PM PST Sat Dec 16 2017 CAZ507-511-512-517-518-171200- /O.CON.KMTR.WI.Y.0023.000000T0000Z-171217T1800Z/ North Bay Mountains-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 752 PM PST Sat Dec 16 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... A Wind Advisory remains in effect until 10 AM PST Sunday. * TIMING: Through 10 AM Sunday * LOCATION: Elevations above 1,000 feet in the San Francisco and Monterey Bay Region. * WINDS: Northerly winds of 20 to 35 mph with local gusts over 50 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$
444 WWUS76 KMTR 171007 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 207 AM PST Sun Dec 17 2017 Winds remain strong and gusty in the North and East Bay hills but have diminished to below wind advisory criteria elsewhere. CAZ507-511-512-517-518-171800- /O.CON.KMTR.WI.Y.0023.000000T0000Z-171217T1800Z/ North Bay Mountains-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 207 AM PST Sun Dec 17 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM SUNDAY FOR THE NORTH AND EAST BAY HILLS... ...WIND ADVISORY IS CANCELLED ELSEWHERE... * TIMING: Through 10 AM Sunday * LOCATION: Elevations above 1,000 feet in the North and East Bay hills. * WINDS: Northerly winds of 20 to 35 mph with local gusts over 50 mph. 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. && $$
136 WWUS76 KMTR 171752 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 952 AM PST Sun Dec 17 2017 ...Wind Advisory for the North Bay Hills and East Bay Hills will expire at 10 am PST... CAZ512-517-518-171900- /O.CAN.KMTR.WI.Y.0023.000000T0000Z-171217T1800Z/ Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Scotts Valley, Boulder Creek, and Day Valley 952 AM PST Sun Dec 17 2017 ...WIND ADVISORY IS CANCELLED... The National Weather Service in San Francisco has cancelled the Wind Advisory. Northerly winds are forecast to decrease through the day. While some ridgetops and mountains may see some sustained winds and/or gusts above 35 mph through the early afternoon, widespread elevated wind speeds are not expected. $$ CAZ507-511-171900- /O.EXP.KMTR.WI.Y.0023.000000T0000Z-171217T1800Z/ North Bay Mountains-East Bay Hills and the Diablo Range- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, and Blackhawk 952 AM PST Sun Dec 17 2017 ...WIND ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING... The Wind Advisory will expire at 10 AM PST this morning. Northerly winds are forecast to decrease through the day. While some ridgetops and mountains will likely see some sustained winds and/or gusts above 35 mph through the early afternoon, widespread elevated wind speeds are not expected. Therefore, the Wind Advisory will be allowed to expire at 10 am PST. $$
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 14, 2:40 AM PST | Small Craft Advisory | MTR | 3 days | |
| Dec 14, 9:21 AM PST | Fire Weather Watch | MTR | Monterey, San Benito, San Mateo, Santa Clara, Santa Cruz | 17 hr |
| Dec 14, 2:54 PM PST | Gale Watch | MTR | 6 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.