Alert archive / California / Wind Advisories in 2019
Wind Advisory 14, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this wind advisory at Oct 25, 2019, 11:12 AM PDT for 9 counties in California. It took effect at Oct 26, 2019, 8:00 PM PDT. It was in force for 34 hr.
The area
The counties it named.
The facts
- Issued
- Oct 25, 2019, 11:12 AM PDT (18:12 UTC)
- In effect from
- Oct 26, 2019, 8:00 PM PDT
- Expired
- Oct 28, 2019, 5:31 AM PDT
- In force
- 34 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 18:12 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, 6.2 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
- 3787 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
123
WWUS76 KMTR 251812
NPWMTR
URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
1112 AM PDT Fri Oct 25 2019
CAZ507-260200-
/O.UPG.KMTR.HW.A.0004.191027T0300Z-191028T1800Z/
/O.NEW.KMTR.HW.W.0004.191027T0300Z-191028T1800Z/
North Bay Mountains-
Including the cities of Angwin, Lagunitas-Forest Knolls,
and Woodacre
1112 AM PDT Fri Oct 25 2019
...HIGH WIND WARNING IN EFFECT FROM 8 PM SATURDAY TO 11 AM PDT
MONDAY...
* WHAT... Extremely strong north to northeast winds are
forecast Saturday night through Sunday morning.
Sat Night... Sustained 30-55mph Gusts 60-80mph...
Sun Day... Sustained 20-35mph Gusts 40-60mph...
Sun Night... Sustained 15-25mph Gusts 25-40mph...
Mon Day... Sustained 5-15mph Gusts 15-25mph...
* WHERE...North Bay Mountains.
* WHEN...From 8 PM Saturday to 11 AM PDT Monday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be
difficult, especially for high profile vehicles. Rapid fire
growth potential.
* ADDITIONAL DETAILS... Winds gradually decrease from Sunday
through early Monday but will remain locally gusty
throughout Sunday night.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.
&&
$$
CAZ509-260200-
/O.UPG.KMTR.HW.A.0004.191027T1000Z-191028T1800Z/
/O.NEW.KMTR.WI.Y.0014.191027T1000Z-191028T1800Z/
/O.CON.KMTR.HT.Y.0012.000000T0000Z-191026T0200Z/
San Francisco Peninsula Coast-
Including the city of Pacifica
1112 AM PDT Fri Oct 25 2019
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM PDT THIS EVENING...
...WIND ADVISORY IN EFFECT FROM 3 AM SUNDAY TO 11 AM PDT MONDAY...
* WHAT...For the Heat Advisory, upper 80s to low 90s possible, 17
to 22 degrees above normal. Coastal areas may be equally as warm
or warmer than inland areas. For the wind advisory, northeast
winds 15 to 35 mph with gusts up to 55 mph possible.
* WHERE...San Francisco Peninsula Coast.
* WHEN...For the Heat Advisory, until 7 PM PDT this evening. For
the Wind Advisory, from 3 AM Sunday to 11 AM PDT Monday.
* IMPACTS... HEAT. The heat may cause an increased risk of heat related
illnesses. Heat related illnesses such as heat exhaustion and
heat stroke will be possible. People most vulnerable include
those who are spending considerable time outdoors...those who do
not have air conditioning...young children...the elderly... and
those with chronic ailments. WINDS. Damaging winds could blow down
trees and power lines. Widespread power outages are possible.
Travel could be difficult, especially for high profile vehicles.
Rapid fire growth potential.
* ADDITIONAL DETAILS...The strongest winds are likely from late
Saturday evening into Sunday morning before diminishing
slightly Sunday afternoon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.
&&
$$
CAZ505-506-510-511-260200-
/O.UPG.KMTR.HW.A.0004.191027T0300Z-191028T1800Z/
/O.NEW.KMTR.WI.Y.0014.191027T0300Z-191028T1800Z/
Coastal North Bay Including Point Reyes National Seashore-
North Bay Interior Valleys-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-
Including the cities of Tamalpais-Homestead, Sausalito,
Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato,
Rohnert Park, Concord, Antioch, Livermore, Walnut Creek,
Pleasanton, Pittsburg, San Ramon, and Blackhawk
1112 AM PDT Fri Oct 25 2019
...WIND ADVISORY IN EFFECT FROM 8 PM SATURDAY TO 11 AM PDT
MONDAY...
* WHAT...Strong and dangerous north to northeast winds are forecast
Saturday night into Sunday morning. Winds are expected to reach
the lower elevations particularly by Sunday morning and through
the day Sunday. Offshore winds weaken but remain locally gusty
Sunday night into Monday.
Mountains/Hills... Sat Night... Sustained 30-50mph Gusts 55-75mph...
Sun Day... Sustained 20-35mph Gusts 40-60mph...
Sun Night... Sustained 15-25mph Gusts 25-40mph...
Mon Day... Sustained 5-15mph Gusts 15-25mph...
Valleys/Coast... Sat Night... Sustained 5-15mph Gusts 15-35mph...
Sun Day... Sustained 15-25mph Gusts 30-50mph...
Sun Night... Sustained 5-10mph Gusts 10-20mph...
Mon Day... Light Winds...
* WHERE...Coastal North Bay Including Point Reyes National
Seashore, North Bay Interior Valleys, East Bay Interior
Valleys and East Bay Hills and the Diablo Range.
* WHEN...From 8 PM Saturday to 11 AM PDT Monday.
* IMPACTS...Gusty winds could blow around unsecured objects.
Tree limbs could be blown down and a few power outages may
result. Rapid fire growth potential.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.
&&
$$
CAZ512-260200-
/O.UPG.KMTR.HW.A.0004.191027T1000Z-191028T1800Z/
/O.NEW.KMTR.WI.Y.0014.191027T1000Z-191028T1800Z/
Santa Cruz Mountains-
Including the cities of Scotts Valley, Boulder Creek,
and Day Valley
1112 AM PDT Fri Oct 25 2019
...WIND ADVISORY IN EFFECT FROM 3 AM SUNDAY TO 11 AM PDT MONDAY...
* WHAT...Strong north to northeast winds will develop through
Saturday night into Sunday, peaking early Sunday morning.
Sustained wind speeds of 15 to 30 mph with gusts 35 to 55 mph
are possible. Winds gradually weaken from Sunday morning through
Monday morning, but will remain locally gusty into early Monday.
* WHERE...Santa Cruz Mountains.
* WHEN...From 3 AM Sunday to 11 AM PDT Monday.
* IMPACTS...Gusty winds could blow around unsecured objects.
Tree limbs could be blown down and a few power outages may
result. Rapid fire growth potential.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.
&&
$$
CAZ006-508-513-528>530-260200-
/O.CON.KMTR.HT.Y.0012.000000T0000Z-191026T0200Z/
San Francisco-San Francisco Bay Shoreline-
Santa Clara Valley Including San Jose-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, San Jose, Salinas, Santa Cruz, Watsonville,
Live Oak, Seaside, Monterey, and Marina
1112 AM PDT Fri Oct 25 2019
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM PDT THIS EVENING...
* WHAT...Temperatures will range from the upper 80s to mid 90s
which is 17 to 22 degrees above normal. Coastal areas may be
equally as warm or warmer than inland areas.
* WHERE...Portions of western California.
* WHEN...Until 7 PM PDT this evening.
* IMPACTS...The heat may cause an increased risk of heat related
illnesses. Heat related illnesses such as heat exhaustion and
heat stroke will be possible. People most vulnerable include
those who are spending considerable time outdoors...those who do
not have air conditioning...young children...the elderly... and
those with chronic ailments.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.
&&
$$
For more information from the National Weather Service visit
http://weather.gov/mtr8 follow-up statements
714
WWUS76 KMTR 260154
NPWMTR
URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
654 PM PDT Fri Oct 25 2019
CAZ509-261300-
/O.EXP.KMTR.HT.Y.0012.000000T0000Z-191026T0200Z/
/O.CON.KMTR.WI.Y.0014.191027T1000Z-191028T1800Z/
San Francisco Peninsula Coast-
Including the city of Pacifica
654 PM PDT Fri Oct 25 2019
...WIND ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO 11 AM PDT
MONDAY...
...HEAT ADVISORY WILL EXPIRE AT 7 PM PDT THIS EVENING...
* WHAT...Northeast winds 15 to 30 mph with gusts up to 50 mph
expected.
* WHERE...San Francisco Peninsula Coast.
* WHEN...From 3 AM Sunday to 11 AM PDT Monday.
* IMPACTS...Gusty winds could blow down trees and power lines.
Power outages may result.
* ADDITIONAL DETAILS...The strongest winds are likely from late
Saturday night through Sunday morning before diminishing
slightly Sunday afternoon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.
&&
$$
CAZ006-508-261300-
/O.EXP.KMTR.HT.Y.0012.000000T0000Z-191026T0200Z/
/O.EXA.KMTR.WI.Y.0014.191027T1000Z-191028T1800Z/
San Francisco-San Francisco Bay Shoreline-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, and Berkeley
654 PM PDT Fri Oct 25 2019
...WIND ADVISORY IN EFFECT FROM 3 AM SUNDAY TO 11 AM PDT MONDAY...
...HEAT ADVISORY WILL EXPIRE AT 7 PM PDT THIS EVENING...
* WHAT...Northeast winds 15 to 25 mph with gusts up to 45 mph
expected.
* WHERE...San Francisco and San Francisco Bay Shoreline.
* WHEN...From 3 AM Sunday to 11 AM PDT Monday.
* IMPACTS...Gusty winds could blow down trees and power lines.
Power outages may result.
* ADDITIONAL DETAILS...The strongest winds are likely from late
Saturday night through Sunday morning before diminishing
slightly Sunday afternoon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.
&&
$$
CAZ513-528>530-260300-
/O.EXP.KMTR.HT.Y.0012.000000T0000Z-191026T0200Z/
Santa Clara Valley Including San Jose-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast-
Including the cities of San Jose, Salinas, Santa Cruz,
Watsonville, Live Oak, Seaside, Monterey, and Marina
654 PM PDT Fri Oct 25 2019
...HEAT ADVISORY WILL EXPIRE AT 7 PM PDT THIS EVENING...
Temperatures have cooled into 70s and lower 80s and will continue
to cool overnight. Cooler temperatures are forecast over the
weekend.
$$
CAZ507-261300-
/O.CON.KMTR.HW.W.0004.191027T0300Z-191028T1800Z/
North Bay Mountains-
Including the cities of Angwin, Lagunitas-Forest Knolls,
and Woodacre
654 PM PDT Fri Oct 25 2019
...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM SATURDAY TO
11 AM PDT MONDAY...
* WHAT... Extremely strong north to northeast winds are forecast
Saturday night through Sunday morning.
Sat Night... Sustained 30-55mph Gusts 60-80mph...
Sun Day... Sustained 20-35mph Gusts 40-60mph...
Sun Night... Sustained 15-25mph Gusts 25-40mph...
Mon Day... Sustained 5-15mph Gusts 15-25mph...
* WHERE...North Bay Mountains.
* WHEN...From 8 PM Saturday to 11 AM PDT Monday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be
difficult, especially for high profile vehicles. Rapid fire
growth potential.
* ADDITIONAL DETAILS... Winds gradually decrease from Sunday
through early Monday but will remain locally gusty throughout
Sunday night.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.
&&
$$
CAZ505-506-510-511-261300-
/O.CON.KMTR.WI.Y.0014.191027T0300Z-191028T1800Z/
Coastal North Bay Including Point Reyes National Seashore-
North Bay Interior Valleys-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-
Including the cities of Tamalpais-Homestead, Sausalito,
Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato,
Rohnert Park, Concord, Antioch, Livermore, Walnut Creek,
Pleasanton, Pittsburg, San Ramon, and Blackhawk
654 PM PDT Fri Oct 25 2019
...WIND ADVISORY REMAINS IN EFFECT FROM 8 PM SATURDAY TO 11 AM
PDT MONDAY...
* WHAT...Strong and gusty north to northeast winds are forecast
Saturday night into Sunday morning. Winds are expected to reach
the lower elevations particularly by Sunday morning and through
the day Sunday. Offshore winds weaken but remain locally gusty
Sunday night into Monday.
Mountains/Hills... Sat Night... Sustained 30-50mph Gusts 55-75mph...
Sun Day... Sustained 20-35mph Gusts 40-60mph...
Sun Night... Sustained 15-25mph Gusts 25-40mph...
Mon Day... Sustained 5-15mph Gusts 15-25mph...
Valleys/Coast... Sat Night... Sustained 5-15mph Gusts 15-35mph...
Sun Day... Sustained 15-25mph Gusts 30-50mph...
Sun Night... Sustained 5-10mph Gusts 10-20mph...
Mon Day... Light Winds...
* WHERE...Coastal North Bay Including Point Reyes National
Seashore, North Bay Interior Valleys, East Bay Interior
Valleys and East Bay Hills and the Diablo Range.
* WHEN...From 8 PM Saturday to 11 AM PDT Monday.
* IMPACTS...Gusty winds could blow around unsecured objects.
Tree limbs could be blown down and a few power outages may
result. Rapid fire growth potential.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.
&&
$$
CAZ512-261300-
/O.CON.KMTR.WI.Y.0014.191027T1000Z-191028T1800Z/
Santa Cruz Mountains-
Including the cities of Scotts Valley, Boulder Creek,
and Day Valley
654 PM PDT Fri Oct 25 2019
...WIND ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO 11 AM PDT
MONDAY...
* WHAT...Strong north to northeast winds will develop through
Saturday night into Sunday, peaking early Sunday morning.
Sustained wind speeds of 15 to 30 mph with gusts 35 to 55 mph
are possible. Winds gradually weaken from Sunday morning
through Monday morning, but will remain locally gusty into
early Monday.
* WHERE...Santa Cruz Mountains.
* WHEN...From 3 AM Sunday to 11 AM PDT Monday.
* IMPACTS...Gusty winds could blow around unsecured objects.
Tree limbs could be blown down and a few power outages may
result. Rapid fire growth potential.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.
&&
$$
For more information from the National Weather Service visit
http://weather.gov/mtr763
WWUS76 KMTR 261251
NPWMTR
URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
551 AM PDT Sat Oct 26 2019
CAZ507-270000-
/O.CON.KMTR.HW.W.0004.191027T0300Z-191028T1800Z/
North Bay Mountains-
Including the cities of Angwin, Lagunitas-Forest Knolls,
and Woodacre
551 AM PDT Sat Oct 26 2019
...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
11 AM PDT MONDAY...
* WHAT... Extremely strong north to northeast winds are forecast
tonight through Sunday morning.
Sat Night... Sustained 30-55mph Gusts 60-80mph...
Sun Day... Sustained 20-35mph Gusts 40-60mph...
Sun Night... Sustained 15-25mph Gusts 25-40mph...
Mon Day... Sustained 5-15mph Gusts 15-25mph...
* WHERE...North Bay Mountains.
* WHEN...From 8 PM Saturday to 11 AM PDT Monday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be
difficult, especially for high profile vehicles. Rapid fire
growth potential.
* ADDITIONAL DETAILS... Winds gradually decrease from Sunday
through early Monday but will remain locally gusty throughout
Sunday night.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.
&&
$$
CAZ505-506-510-511-270000-
/O.CON.KMTR.WI.Y.0014.191027T0300Z-191028T1800Z/
Coastal North Bay Including Point Reyes National Seashore-
North Bay Interior Valleys-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-
Including the cities of Tamalpais-Homestead, Sausalito,
Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato,
Rohnert Park, Concord, Antioch, Livermore, Walnut Creek,
Pleasanton, Pittsburg, San Ramon, and Blackhawk
551 AM PDT Sat Oct 26 2019
...WIND ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
11 AM PDT MONDAY...
* WHAT...Strong and gusty north to northeast winds are forecast tonight
into Sunday morning. Winds are expected to reach the lower
elevations particularly by Sunday morning and through the day
Sunday. Offshore winds weaken but remain locally gusty Sunday
night into Monday.
Mountains/Hills... Sat Night... Sustained 30-50mph Gusts 55-75mph...
Sun Day... Sustained 20-35mph Gusts 40-60mph...
Sun Night... Sustained 15-25mph Gusts 25-40mph...
Mon Day... Sustained 5-15mph Gusts 15-25mph...
Valleys/Coast... Sat Night... Sustained 5-15mph Gusts 15-35mph...
Sun Day... Sustained 15-25mph Gusts 30-50mph...
Sun Night... Sustained 5-10mph Gusts 10-20mph...
Mon Day... Light Winds...
* WHERE...Coastal North Bay Including Point Reyes National
Seashore, North Bay Interior Valleys, East Bay Interior
Valleys and East Bay Hills and the Diablo Range.
* WHEN...From 8 PM Saturday to 11 AM PDT Monday.
* IMPACTS...Gusty winds could blow around unsecured objects.
Tree limbs could be blown down and a few power outages may
result. Rapid fire growth potential.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.
&&
$$
CAZ006-508-509-512-270000-
/O.CON.KMTR.WI.Y.0014.191027T1000Z-191028T1800Z/
San Francisco-San Francisco Bay Shoreline-
San Francisco Peninsula Coast-Santa Cruz Mountains-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, Pacifica, Scotts Valley, Boulder Creek,
and Day Valley
551 AM PDT Sat Oct 26 2019
...WIND ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO 11 AM PDT
MONDAY...
* WHAT...Northeast winds 15 to 30 mph with gusts up to 45 mph
expected.
* WHERE...San Francisco Peninsula Coast and San Francisco Bay
Shoreline.
* WHEN...From 3 AM Sunday to 11 AM PDT Monday.
* IMPACTS...Gusty winds could blow down trees and power lines.
Power outages may result.
* ADDITIONAL DETAILS...The strongest winds are likely from late
Saturday night through Sunday morning before diminishing
slightly Sunday afternoon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.
&&
$$
For more information from the National Weather Service visit
http://weather.gov/mtr208 WWUS76 KMTR 262052 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 152 PM PDT Sat Oct 26 2019 CAZ507-271300- /O.CON.KMTR.HW.W.0004.191027T0300Z-191028T1800Z/ North Bay Mountains- Including the cities of Angwin, Lagunitas-Forest Knolls, and Woodacre 152 PM PDT Sat Oct 26 2019 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 11 AM PDT MONDAY... * WHAT... Extremely strong north to northeast winds are forecast tonight through early Monday. The strongest winds will occur overnight tonight and into early Sunday. Winds weaken through the day Sunday but will increase Sunday night before dissipating through Monday morning. Sat Night... Sustained 30-55mph Gusts 60-80mph... Sun Day... Sustained 20-35mph Gusts 40-60mph... Sun Night... Sustained 25-45mph Gusts 50-70mph... Mon Day... Sustained 5-15mph Gusts 15-25mph... * WHERE...North Bay Mountains. * WHEN...From 8 PM Saturday to 11 AM PDT Monday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Rapid fire growth potential. * ADDITIONAL DETAILS... The strongest winds are likely from late Saturday night through Sunday morning. Winds weaken through the day Sunday but will remain gusty through Sunday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ505-506-510-511-271300- /O.CON.KMTR.WI.Y.0014.191027T0300Z-191028T1800Z/ Coastal North Bay Including Point Reyes National Seashore- North Bay Interior Valleys-East Bay Interior Valleys- East Bay Hills and the Diablo Range- Including the cities of Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, and Blackhawk 152 PM PDT Sat Oct 26 2019 ...WIND ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 11 AM PDT MONDAY... * WHAT...Strong and gusty north to northeast winds are forecast tonight into Sunday morning. Winds are expected to reach the lower elevations particularly by Sunday morning and through the day Sunday. Offshore winds weaken but remain gusty Sunday night into Monday. Mountains/Hills... Sat Night... Sustained 30-50mph Gusts 55-75mph... Sun Day... Sustained 20-35mph Gusts 40-60mph... Sun Night... Sustained 25-45mph Gusts 45-65mph... Mon Day... Sustained 5-15mph Gusts 15-25mph... Valleys/Coast... Sat Night... Sustained 5-15mph Gusts 15-35mph... Sun Day... Sustained 15-25mph Gusts 30-50mph... Sun Night... Sustained 5-10mph Gusts 15-30mph... Mon Day... Light Winds... * WHERE...Coastal North Bay Including Point Reyes National Seashore, North Bay Interior Valleys, East Bay Interior Valleys and East Bay Hills and the Diablo Range. * WHEN...From 8 PM Saturday to 11 AM PDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Rapid fire growth potential. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ006-508-509-512-271300- /O.CON.KMTR.WI.Y.0014.191027T1000Z-191028T1800Z/ San Francisco-San Francisco Bay Shoreline- San Francisco Peninsula Coast-Santa Cruz Mountains- Including the cities of San Francisco, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Scotts Valley, Boulder Creek, and Day Valley 152 PM PDT Sat Oct 26 2019 ...WIND ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO 11 AM PDT MONDAY... * WHAT...Northeast winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...San Francisco Peninsula Coast and San Francisco Bay Shoreline. * WHEN...From 3 AM Sunday to 11 AM PDT Monday. * IMPACTS...Gusty winds could blow down trees and power lines. Power outages may result. * ADDITIONAL DETAILS...The strongest winds are likely from late Saturday night through Sunday morning. Winds weaken through the day Sunday but will remain gusty through Sunday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
392 WWUS76 KMTR 270308 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 808 PM PDT Sat Oct 26 2019 CAZ507-271300- /O.CON.KMTR.HW.W.0004.000000T0000Z-191028T1800Z/ North Bay Mountains- Including the cities of Angwin, Lagunitas-Forest Knolls, and Woodacre 808 PM PDT Sat Oct 26 2019 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM PDT MONDAY... * WHAT... Extremely strong north to northeast winds are forecast from Saturday night through early Monday. The strongest winds will occur from late Saturday night through Sunday morning. Winds will diminish Sunday afternoon but will increase Sunday night before decreasing significantly by late Monday morning. Sat Night... Sustained 30-55mph Gusts 60-80mph... Sun Day... Sustained 20-35mph Gusts 40-60mph... Sun Night... Sustained 25-45mph Gusts 50-70mph... Mon Day... Sustained 5-15mph Gusts 15-25mph... * WHERE...North Bay Hills and Mountains above 1000 feet. * WHEN...From 8 PM Saturday to 11 AM PDT Monday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Rapid fire growth potential. * ADDITIONAL DETAILS... The strongest winds are likely from late Saturday night through Sunday morning. Winds weaken through the day Sunday but will remain gusty through Sunday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ505-506-510-511-271300- /O.CON.KMTR.WI.Y.0014.000000T0000Z-191028T1800Z/ Coastal North Bay Including Point Reyes National Seashore- North Bay Interior Valleys-East Bay Interior Valleys- East Bay Hills and the Diablo Range- Including the cities of Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, and Blackhawk 808 PM PDT Sat Oct 26 2019 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT MONDAY... * WHAT...Strong and gusty north to northeast winds are forecast late Saturday night and Sunday. Offshore winds will diminish Sunday night, especially in the valleys, but remain locally strong and gusty in the hills through early Monday. Mountains/Hills... Sat Night... Sustained 30-50mph Gusts 55-75mph... Sun Day... Sustained 20-35mph Gusts 40-60mph... Sun Night... Sustained 25-45mph Gusts 45-65mph... Mon Day... Sustained 5-15mph Gusts 15-25mph... Valleys/Coast... Sat Night... Sustained 5-15mph Gusts 15-35mph... Sun Day... Sustained 15-25mph Gusts 30-50mph... Sun Night... Sustained 5-10mph Gusts 15-30mph... Mon Day... Light Winds... * WHERE...Coastal North Bay Including Point Reyes National Seashore, North Bay Interior Valleys, East Bay Interior Valleys, and East Bay Hills and the Diablo Range. * WHEN...From 8 PM Saturday to 11 AM PDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and power outages may result. Rapid fire growth potential. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ006-508-509-512-271300- /O.CON.KMTR.WI.Y.0014.191027T1000Z-191028T1800Z/ San Francisco-San Francisco Bay Shoreline- San Francisco Peninsula Coast-Santa Cruz Mountains- Including the cities of San Francisco, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Scotts Valley, Boulder Creek, and Day Valley 808 PM PDT Sat Oct 26 2019 ...WIND ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO 11 AM PDT MONDAY... * WHAT...Northeast winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...San Francisco Peninsula Coast and San Francisco Bay Shoreline. * WHEN...From 3 AM Sunday to 11 AM PDT Monday. * IMPACTS...Gusty winds could blow down trees and power lines. Power outages may result. * ADDITIONAL DETAILS...The strongest winds are likely from late Saturday night through Sunday morning. Winds weaken through the day Sunday but will remain gusty through Sunday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
470 WWUS76 KMTR 271238 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 538 AM PDT Sun Oct 27 2019 CAZ507-280100- /O.CON.KMTR.HW.W.0004.000000T0000Z-191028T1800Z/ North Bay Mountains- Including the cities of Angwin, Lagunitas-Forest Knolls, and Woodacre 538 AM PDT Sun Oct 27 2019 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM PDT MONDAY... * WHAT... Extremely strong north to northeast winds are forecast through early Monday. Sustained winds of 30 to 50 mph with gusts to 80 mph are expected through Sunday morning, decreasing to 20 to 35 mph sustained with gusts to 60 mph during the day. Overnight winds will increase to 25 to 45 mph sustained with gusts possibly as high as 70 mph. Winds will decrease to 5 to 15 mph with gusts to 25 mph late Monday morning. * WHERE...North Bay Hills and Mountains above 1000 feet. * WHEN...From 8 PM Saturday to 11 AM PDT Monday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Rapid fire growth potential. * ADDITIONAL DETAILS... The strongest winds are likely through Sunday morning. Winds weaken through the day Sunday but will remain gusty through Sunday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ505-506-510-511-280100- /O.CON.KMTR.WI.Y.0014.000000T0000Z-191028T1800Z/ Coastal North Bay Including Point Reyes National Seashore- North Bay Interior Valleys-East Bay Interior Valleys- East Bay Hills and the Diablo Range- Including the cities of Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, and Blackhawk 538 AM PDT Sun Oct 27 2019 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT MONDAY... * WHAT...Strong and gusty north to northeast winds are forecast through late morning Sunday with sustained winds 30 to 50 mph and gusts to 75 mph...strongest in the hills. Offshore winds will diminish Sunday night, especially in the valleys, but remain locally strong and gusty in the hills through early Monday with sustained winds of 25 to 45 mph with higher gusts. * WHERE...Coastal North Bay Including Point Reyes National Seashore, North Bay Interior Valleys, East Bay Interior Valleys, and East Bay Hills and the Diablo Range. * WHEN...Until 11 AM PDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and power outages may result. Rapid fire growth potential. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ006-508-509-512-280100- /O.CON.KMTR.WI.Y.0014.000000T0000Z-191028T1800Z/ San Francisco-San Francisco Bay Shoreline- San Francisco Peninsula Coast-Santa Cruz Mountains- Including the cities of San Francisco, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Scotts Valley, Boulder Creek, and Day Valley 538 AM PDT Sun Oct 27 2019 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT MONDAY... * WHAT...Northeast winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...San Francisco Peninsula Coast and San Francisco Bay Shoreline. * WHEN...Until 11 AM PDT Monday. * IMPACTS...Gusty winds could blow down trees and power lines. Power outages may result. * ADDITIONAL DETAILS...The strongest winds are likely through Sunday morning. Winds weaken through the day Sunday but will remain gusty through Sunday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
898 WWUS76 KMTR 280054 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 554 PM PDT Sun Oct 27 2019 CAZ507-281300- /O.CON.KMTR.HW.W.0004.000000T0000Z-191028T1800Z/ North Bay Mountains- Including the cities of Angwin, Lagunitas-Forest Knolls, and Woodacre 554 PM PDT Sun Oct 27 2019 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM PDT MONDAY... * WHAT...Very strong north to northeast winds are forecast to continue through early Monday. Sustained winds of 25 to 35 mph with gusts to 70 mph are expected through Sunday night. Winds will decrease to 5 to 15 mph with gusts to 25 mph by late Monday morning. * WHERE...North Bay Hills and Mountains above 1000 feet. * WHEN...Until 11 AM PDT Monday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Rapid fire growth potential. * ADDITIONAL DETAILS... The strongest winds are likely through Sunday night. Winds will decreasing significantly by late monday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ505-506-510-511-281300- /O.CON.KMTR.WI.Y.0014.000000T0000Z-191028T1800Z/ Coastal North Bay Including Point Reyes National Seashore- North Bay Interior Valleys-East Bay Interior Valleys- East Bay Hills and the Diablo Range- Including the cities of Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, and Blackhawk 554 PM PDT Sun Oct 27 2019 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT MONDAY... * WHAT...Strong and gusty north to northeast winds are forecast through much of Sunday night with sustained winds 20 to 30 mph and gusts 40 to 55 mph expected. Strongest winds will be in the hills. Offshore winds will diminish in the valleys by late Sunday evening, but remain locally strong and gusty in the hills through early Monday morning. Winds will diminish in all areas by late Monday morning. * WHERE...Coastal North Bay Including Point Reyes National Seashore, North Bay Interior Valleys, East Bay Interior Valleys, and East Bay Hills and the Diablo Range. * WHEN...Until 11 AM PDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and power outages may result. Rapid fire growth potential. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ006-508-509-512-281300- /O.CON.KMTR.WI.Y.0014.000000T0000Z-191028T1800Z/ San Francisco-San Francisco Bay Shoreline- San Francisco Peninsula Coast-Santa Cruz Mountains- Including the cities of San Francisco, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Scotts Valley, Boulder Creek, and Day Valley 554 PM PDT Sun Oct 27 2019 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT MONDAY... * WHAT...Northeast winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...San Francisco, San Francisco Peninsula Coast, San Francisco Bay Shoreline, and Santa Cruz Mountains. * WHEN...Until 11 AM PDT Monday. * IMPACTS...Gusty winds could blow down trees and power lines. Power outages may result. * ADDITIONAL DETAILS...The strongest winds are likely through Sunday evening. Winds weaken through Sunday night and especially on Monday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
179 WWUS76 KMTR 280848 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 148 AM PDT Mon Oct 28 2019 CAZ507-281800- /O.CAN.KMTR.HW.W.0004.000000T0000Z-191028T1800Z/ /O.EXA.KMTR.WI.Y.0014.000000T0000Z-191028T1800Z/ North Bay Mountains- Including the cities of Angwin, Lagunitas-Forest Knolls, and Woodacre 148 AM PDT Mon Oct 28 2019 ...WIND ADVISORY IN EFFECT UNTIL 11 AM PDT THIS MORNING... ...HIGH WIND WARNING IS CANCELLED... * WHAT...Northeast winds 25 to 35 mph with gusts up to 55 mph. * WHERE...North Bay Hills and Mountains above 1000 feet. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and power outages may result. * ADDITIONAL DETAILS...Winds will gradually diminish through Monday morning. Another round of strong and gusty offshore winds are forecast to occur from midday Tuesday through Wednesday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ006-505-506-508>510-512-281000- /O.CAN.KMTR.WI.Y.0014.000000T0000Z-191028T1800Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Interior Valleys-San Francisco Bay Shoreline- San Francisco Peninsula Coast-East Bay Interior Valleys- Santa Cruz Mountains- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Scotts Valley, Boulder Creek, and Day Valley 148 AM PDT Mon Oct 28 2019 ...WIND ADVISORY IS CANCELLED... Winds have been subsiding overnight and current observations indicate that wind gusts are below 40 mph. Winds will continue to decrease through the morning. $$ CAZ511-281800- /O.CON.KMTR.WI.Y.0014.000000T0000Z-191028T1800Z/ East Bay Hills and the Diablo Range- Including the city of Blackhawk 148 AM PDT Mon Oct 28 2019 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING... * WHAT...Northeast winds 20 to 30 mph with gusts to 45 mph. * WHERE...East Bay Hills and the Diablo Range. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and power outages may result. * ADDITIONAL DETAILS...Winds will gradually diminish through Monday morning. Another round of strong and gusty offshore winds are forecast to occur from Tuesday afternoon through Wednesday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
946 WWUS76 KMTR 281231 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 531 AM PDT Mon Oct 28 2019 CAZ507-511-281345- /O.CAN.KMTR.WI.Y.0014.000000T0000Z-191028T1800Z/ North Bay Mountains-East Bay Hills and the Diablo Range- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, and Blackhawk 531 AM PDT Mon Oct 28 2019 ...WIND ADVISORY IS CANCELLED... By 5 AM PDT, winds in the North and East Bay Hills had decreased to below advisory levels, with strongest gusts around 35 mph. Winds will continue to decrease through the morning hours. Therefore, the wind advisory is cancelled. The Red Flag Warning remains in effect until 11 am due to gusty winds and very low humidity. Another round of strong and gusty offshore winds is expected across the North and East Bay Hills from Tuesday afternoon through Wednesday morning. $$ For more information from the National Weather Service visit http://weather.gov/mtr
What forecasters said that day
The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Francisco Bay Area, CA wrote its last area forecast discussion before this wind advisory went out at Oct 25, 10:58 AM PDT, 14 minutes earlier.
Area forecast discussion, Oct 25, 10:58 AM PDT, 14 minutes before
Area Forecast Discussion
National Weather Service San Francisco Bay Area
1058 AM PDT Fri Oct 25 2019
.SYNOPSIS..High pressure over the region will result in continued
above normal temperatures and dry conditions. While temperatures
cool slightly over the weekend, a stronger offshore flow event is
forecast to occur late this weekend. Critical fire weather
conditions and potentially damaging winds will be possible over
portions of the San Francisco Bay Area from late Saturday through
Monday morning.
&&
.DISCUSSION...as of 10:21 AM PDT Friday...Forecast remains on
track this morning. A heat advisory has been issued for portions
of the area, including the Bay Shoreline, SF Peninsula coast,
Monterey Bay coastline, Santa Clara Valley, and North Salinas
Valley. Temperatures in these areas will be into the 90s again.
This creates a concern with people reaching to the ocean to escape
the heat due to the ocean water temps being in the mid 50s.
The main wind event remains on track for the weekend. The fire
weather watch and high wind watch are both being upgraded to
warnings at this time.
&&
.PREV DISCUSSION...as of 3:53 AM PDT Friday...Satellite imagery shows
an area of high clouds rotating over Central California. The fog
imagery reveals the heat signatures of California fires. Current
temperature trends are interesting - those in the North Bay are
running as many as 25 degrees cooler than 24 hours ago, in the
lower 50s, and areas in the Monterey County are 8 degrees warmer,
in the 60s! It's still 64 degrees in Monterey.
Another hot day is expected today with highs mainly in
the 80s and 90s, although temperatures should be a few degrees
cooler than Thursday's highs. Further cooling is expected over
the weekend as the upper level ridge weakens as a trough deepens
over the Great Basin. This coupling will bring another offshore
wind event late Saturday into Monday. This event is expected to be
the strongest one of the season with strong and gusty winds not
only being confined to the higher terrain, but even mixing down to
the valleys and coast. A High Wind Watch has been issued for the
entire North Bay region, East Bay Hills, interior valleys and the
Diablo Range, Santa Cruz Mountains and San Francisco Peninsula
Coast from late Saturday through Monday morning.
Even though cooler temperatures (near normal) will translate to
higher relative humidities, the strong winds will be more than
enough to push fire weather conditions to critical once again.
Thus, a Fire Weather Watch is in effect from Saturday night
through Monday morning for dangerously strong offshore winds.
Winds will will begin to taper off on Monday, and temperatures
will remain seasonably cool, especially overnights. Low temps in
the inland valley areas are forecast to drop to the upper 30s to
lower 40s in sheltered areas. Looking out in the extended, the
blocking ridge is forecast to remain over the Eastern Pacific,
thus no rain in sight through 10 days.
&&
.AVIATION...as of 11:00 AM PDT Friday...VFR. Clear skies continue
as light, offshore flow persists. Smoke from the Kincade Fire in
Sonoma County has dropped visibility at KSTS to 3 statute miles.
The smoke is forecast to move over much of the Bay Area as winds
shift to the northwest this afternoon and through this evening,
reducing visibilities at times. By tomorrow morning, the smoke
plume could reach as far south as the Monterey Peninsula and
Salinas Valley, but there is still uncertainty if the plume
will diffuse or remain more dense. Winds will switch back to
offshore flow on Saturday.
Vicinity of KSFO...VFR. Onshore winds expected to return late
this afternoon. Smoke could occasionally reduce visibility much of
the day.
SFO Bridge Approach...Similar to KSFO.
Monterey Bay Terminals...VFR. Onshore winds return this
afternoon. Smoke could drift near the terminals late this evening
or early tomorrow morning, but confidence on coverage is low.
&&
.FIRE WEATHER...as of 9:24 PM PDT Thursday...While wind speeds
have diminish across the region through the day, a very dry air
mass remains in place this evening with light to occasionally
moderate offshore flow. This will lead to poor to moderate at best
humidity recoveries overnight which is not good for ongoing fires
over the region. All this is leading up to an even stronger
offshore wind event beginning Saturday and lasting until Monday
morning. Thus, a Fire Weather Watch has been issued for the entire
North Bay, East Bay Hills, interior valleys and the Diablo Range,
Santa Cruz Mountains and San Francisco Peninsula Coast.
Now for the details...confidence continues to increase with the
development of a very strong offshore flow gradient late this
weekend. The forecast models put this on par, strength wise, with
the 2017 offshore event that resulted in the deadly and devastating
North Bay/Wine Country Fires. 925 MB winds of 40-45kt will develop
first over Napa County late Saturday night and spread south and west
into Sunday morning. The local MTR WRF model shows winds peaking
early Sunday morning with 925 MB winds approaching 60kt over the
higher peaks of the North Bay region. Given better upper level
support, these stronger winds will have the potential to downslope
on the lee side of the mountains, thus mixing strong and gusty winds
into the valley floor and even to the coast early Sunday morning.
Thus, cannot rule out frequent wind gusts of 45 to 55 mph across the
aforementioned areas with gusts of up to 65 to 75 mph in the
region's highest ridges and peaks. Relative humidity values will
also plummet as these winds develop and mix down to the surface late
Saturday night into Sunday. This will make any ongoing fire fighting
efforts very difficult and will allow for any new fire starts to
spread rapidly. Winds will diminish slightly in the valley and
coastal locations late Sunday, yet critically dry conditions will
likely persist and gusty winds will continue in the higher
elevations. Please continue to monitor the latest forecast
information regarding the forecast critical fire weather conditions
and potentially damaging winds.
&&
.MARINE...as of 10:43 AM PDT Friday...Weak easterly winds Friday
will switch to northwesterly late tonight as high pressure
rebuilds over the northeastern Pacific. Winds will remain from the
northwest and strengthen on Saturday. A larger northwest swell
will arrive this weekend. A light southerly swell will persist
through the forecast period. Gale- force winds are possible
across the northern outer waters Saturday night. Additionally,
gale force winds are possible along the coastal waters north of
Pigeon Point late Saturday night and Sunday due to strong
developing offshore winds.
&&
.MTR WATCHES/WARNINGS/ADVISORIES...
.Tday...Heat Advisory...*CAZ006-508-509-513-528>530*
&&
PUBLIC FORECAST: BFG/Sims
AVIATION: DK
MARINE: DK
FIRE WEATHER: RGass
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www.youtube.com/nwsbayareaThe office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 7:19 PM PDT | High Wind Watch | MTR | Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara and 2 more | 16 hr |
| Oct 25, 3:00 AM PDT | Gale Watch | MTR | 19 hr | |
| Oct 25, 7:21 AM PDT | Heat Advisory | MTR | Alameda, Contra Costa, Monterey, San Benito, City and County of San Francisco, San Mateo and 2 more | 12 hr |
| Oct 25, 10:35 AM PDT | Red Flag Warning | MTR | Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara and 2 more | 3 days |
| Oct 25, 11:12 AM PDT | High Wind Warning | MTR | 63 hr |
Nearby
Wind Advisories in California, 2019Every wind advisory in 2019
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.