Wind Advisory 4, NWS San Francisco Bay Area, CA

958 
WWUS76 KMTR 191327
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
527 AM PST Sun Jan 19 2025

CAZ506-513-192130-
/O.NEW.KMTR.FG.Y.0004.250120T1300Z-250120T1700Z/
North Bay Interior Valleys-Santa Clara Valley Including San Jose-
527 AM PST Sun Jan 19 2025

...DENSE FOG ADVISORY IN EFFECT FROM 5 AM TO 9 AM PST MONDAY...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...The Santa Clara Valley, and North Bay Interior Valleys.

* WHEN...From 5 AM to 9 AM PST Monday.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

CAZ516>518-191700-
/O.CON.KMTR.FR.Y.0009.000000T0000Z-250119T1700Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Santa
Lucia Mountains and Los Padres National Forest-Mountains of San
Benito County And Interior Monterey County including Pinnacles
National Park-
527 AM PST Sun Jan 19 2025

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING...

* WHAT...Temperatures as low as 31 will result in frost formation.

* WHERE...Interior Monterey County and the Santa Lucia Range, Most 
  of San Benito County and the Cholame Hills in Southeast Monterey 
  County, and Southern Salinas Valley/Arroyo Seco and Lake San 
  Antonio.

* WHEN...Until 9 AM PST this morning.

* IMPACTS...Cold conditions will be hazardous to sensitive 
  populations such as unhoused individuals. Cold conditions can lead 
  to hypothermia with prolonged exposure.

* ADDITIONAL DETAILS...Portions of interior southeastern Monterey 
  County, including the town of Bradley and Lockwood, may see 
  temperatures drop into the upper 20s overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ504-192130-
/O.CON.KMTR.WI.Y.0004.250120T1200Z-250121T0900Z/
North Bay Interior Mountains-
527 AM PST Sun Jan 19 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM MONDAY TO 1 AM PST 
TUESDAY...

* WHAT...North winds 20 to 30 mph with gusts up to 35 to 50 mph 
  expected. Stronger gusts of 50 to 60 mph are expected for the 
  highest peaks of the North Bay.

* WHERE...North Bay Interior Mountains.

* WHEN...From 4 AM Monday to 1 AM PST Tuesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Sarment

459 
WWUS76 KMTR 191342
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
542 AM PST Sun Jan 19 2025

CAZ506-513-191700-
/O.CAN.KMTR.FG.Y.0004.250120T1300Z-250120T1700Z/
/O.NEW.KMTR.FG.Y.0005.250119T1342Z-250119T1700Z/
North Bay Interior Valleys-Santa Clara Valley Including San Jose-
542 AM PST Sun Jan 19 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM PST THIS MORNING...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...The Santa Clara Valley, and North Bay Interior Valleys.

* WHEN...Until 9 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

CAZ516>518-191700-
/O.CON.KMTR.FR.Y.0009.000000T0000Z-250119T1700Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Santa
Lucia Mountains and Los Padres National Forest-Mountains of San
Benito County And Interior Monterey County including Pinnacles
National Park-
542 AM PST Sun Jan 19 2025

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING...

* WHAT...Temperatures as low as 31 will result in frost formation.

* WHERE...Interior Monterey County and the Santa Lucia Range, Most 
  of San Benito County and the Cholame Hills in Southeast Monterey 
  County, and Southern Salinas Valley/Arroyo Seco and Lake San 
  Antonio.

* WHEN...Until 9 AM PST this morning.

* IMPACTS...Cold conditions will be hazardous to sensitive 
  populations such as unhoused individuals. Cold Conditions can lead 
  to hypothermia with prolonged exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ504-192145-
/O.CON.KMTR.WI.Y.0004.250120T1200Z-250121T0900Z/
North Bay Interior Mountains-
542 AM PST Sun Jan 19 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM MONDAY TO 1 AM PST 
TUESDAY...

* WHAT...North winds 25 to 35 mph with gusts up to 45 mph expected.

* WHERE...North Bay Interior Mountains.

* WHEN...From 4 AM Monday to 1 AM PST Tuesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Sarment

781 
WWUS76 KMTR 191615
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
815 AM PST Sun Jan 19 2025

CAZ506-513-192000-
/O.EXT.KMTR.FG.Y.0005.000000T0000Z-250119T2000Z/
North Bay Interior Valleys-Santa Clara Valley Including San Jose-
815 AM PST Sun Jan 19 2025

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...The Santa Clara Valley, and North Bay Interior Valleys.

* WHEN...Until noon PST today.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

CAZ516>518-191715-
/O.CON.KMTR.FR.Y.0009.000000T0000Z-250119T1700Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Santa
Lucia Mountains and Los Padres National Forest-Mountains of San
Benito County And Interior Monterey County including Pinnacles
National Park-
815 AM PST Sun Jan 19 2025

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING...

* WHAT...Temperatures as low as 33 will result in frost formation.

* WHERE...Interior Monterey County and the Santa Lucia Range, Most 
  of San Benito County and the Cholame Hills in Southeast Monterey 
  County, and Southern Salinas Valley/Arroyo Seco and Lake San 
  Antonio.

* WHEN...Until 9 AM PST this morning.

* IMPACTS...Cold conditions will be hazardous to sensitive 
  populations such as unhoused individuals. Cold conditions can lead 
  to hypothermia with prolonged exposure.

* ADDITIONAL DETAILS...Portions of interior southeastern Monterey 
  County, including the town of Bradley and Lockwood, may see 
  temperatures drop into the upper 20s overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ504-200015-
/O.CON.KMTR.WI.Y.0004.250120T1200Z-250121T0900Z/
North Bay Interior Mountains-
815 AM PST Sun Jan 19 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM MONDAY TO 1 AM PST 
TUESDAY...

* WHAT...North winds 20 to 30 mph with gusts up to 35 to 50 mph 
  expected. Stronger gusts of 50 to 60 mph are expected for the 
  highest peaks of the North Bay.

* WHERE...North Bay Interior Mountains.

* WHEN...From 4 AM Monday to 1 AM PST Tuesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Kennedy

693 
WWUS76 KMTR 191646
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
846 AM PST Sun Jan 19 2025

CAZ516>518-191800-
/O.EXP.KMTR.FR.Y.0009.000000T0000Z-250119T1700Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Santa
Lucia Mountains and Los Padres National Forest-Mountains of San
Benito County And Interior Monterey County including Pinnacles
National Park-
846 AM PST Sun Jan 19 2025

...FROST ADVISORY WILL EXPIRE AT 9 AM PST THIS MORNING...

Temperatures are increasing, so the Frost Advisory will 
be allowed to expire at 9 AM. Chilly conditions will gradually 
improve across the far southeastern corner of Monterey County 
through the remainder of the morning.

$$

CAZ506-513-192000-
/O.CON.KMTR.FG.Y.0005.000000T0000Z-250119T2000Z/
North Bay Interior Valleys-Santa Clara Valley Including San Jose-
846 AM PST Sun Jan 19 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...The Santa Clara Valley, and North Bay Interior Valleys.

* WHEN...Until noon PST today.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

CAZ504-200100-
/O.CON.KMTR.WI.Y.0004.250120T1200Z-250121T0900Z/
North Bay Interior Mountains-
846 AM PST Sun Jan 19 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM MONDAY TO 1 AM PST 
TUESDAY...

* WHAT...North winds 20 to 30 mph with gusts up to 35 to 50 mph 
  expected. Stronger gusts of 50 to 60 mph are expected for the 
  highest peaks of the North Bay.

* WHERE...North Bay Interior Mountains.

* WHEN...From 4 AM Monday to 1 AM PST Tuesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Kennedy

385 
WWUS76 KMTR 191936
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
1136 AM PST Sun Jan 19 2025

CAZ506-513-192045-
/O.EXP.KMTR.FG.Y.0005.000000T0000Z-250119T2000Z/
North Bay Interior Valleys-Santa Clara Valley Including San Jose-
1136 AM PST Sun Jan 19 2025

...DENSE FOG ADVISORY WILL EXPIRE AT NOON PST TODAY...

Visibilities are increasing across the region, and the Dense Fog 
Advisory will be allowed to expire. Patchy dense fog is still 
possible into the early afternoon. If you encounter a patch of dense 
fog while driving, slow down, use your low beam headlights, and 
leave plenty of distance ahead of you.

$$

CAZ504-200500-
/O.CON.KMTR.WI.Y.0004.250120T1200Z-250121T0900Z/
North Bay Interior Mountains-
1136 AM PST Sun Jan 19 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM MONDAY TO 1 AM PST 
TUESDAY...

* WHAT...North winds 20 to 30 mph with gusts up to 35 to 50 mph 
  expected. Stronger gusts of 50 to 60 mph are expected for the 
  highest peaks of the North Bay.

* WHERE...North Bay Interior Mountains.

* WHEN...From 4 AM Monday to 1 AM PST Tuesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

DialH

837 
WWUS76 KMTR 192131
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
131 PM PST Sun Jan 19 2025

CAZ516-518-200700-
/O.NEW.KMTR.FZ.W.0001.250120T0900Z-250120T1700Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Mountains of San Benito County And Interior Monterey County
including Pinnacles National Park-
131 PM PST Sun Jan 19 2025

...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM PST MONDAY...

* WHAT...Sub-freezing temperatures as low as 26 expected.

* WHERE...Most of San Benito County and the Cholame Hills in 
  Southeast Monterey County, and Southern Salinas Valley/Arroyo Seco 
  and Lake San Antonio.

* WHEN...From 1 AM to 9 AM PST Monday.

* IMPACTS...Cold conditions will be hazardous to sensitive 
  populations such as unhoused individuals. Cold Conditions can lead 
  to hypothermia with prolonged exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

Be sure to open sink cabinet doors and/or drip faucets. This may 
help reduce or prevent damage to uninsulated pipes and other 
plumbing.

&&

$$

CAZ506-510-513>515-517-528-200700-
/O.NEW.KMTR.FR.Y.0010.250120T0900Z-250120T1700Z/
North Bay Interior Valleys-East Bay Interior Valleys-Santa Clara
Valley Including San Jose-Eastern Santa Clara Hills-East Bay
Hills-Santa Lucia Mountains and Los Padres National Forest-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
131 PM PST Sun Jan 19 2025

...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM PST MONDAY...

* WHAT...Temperatures as low as 33 will result in frost formation.

* WHERE...The Santa Clara Valley and Eastern Hills, The East Bay 
  Hills and Valleys, Interior Monterey County and the Santa Lucia 
  Range, North Bay Interior Valleys, and Northern Salinas 
  Valley/Hollister Valley and Carmel Valley.

* WHEN...From 1 AM to 9 AM PST Monday.

* IMPACTS...Cold conditions will be hazardous to sensitive 
  populations such as unhoused individuals. Cold Conditions can lead 
  to hypothermia with prolonged exposure.

* ADDITIONAL DETAILS...Portions of far southern Monterey County, in 
  the vicinity of Fort Hunter Liggett, and the highest peaks in the 
  elevated terrain of eastern Santa Clara and Alameda Counties may 
  see locally colder weather closer to 30 degrees.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

Be sure to cover or tend to sensitive plants and vegetation as they 
may be damaged by frost.

&&

$$

CAZ504-200700-
/O.CON.KMTR.WI.Y.0004.250120T1200Z-250121T0900Z/
North Bay Interior Mountains-
131 PM PST Sun Jan 19 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM MONDAY TO 1 AM PST 
TUESDAY...

* WHAT...North winds 20 to 30 mph with gusts up to 35 to 50 mph 
  expected. Stronger gusts of 50 to 60 mph are expected for the 
  highest peaks of the North Bay.

* WHERE...North Bay Interior Mountains.

* WHEN...From 4 AM Monday to 1 AM PST Tuesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Kennedy

520 
WWUS76 KMTR 200635
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
1035 PM PST Sun Jan 19 2025

CAZ516-518-201700-
/O.CON.KMTR.FZ.W.0001.250120T0900Z-250120T1700Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Mountains of San Benito County And Interior Monterey County
including Pinnacles National Park-
1035 PM PST Sun Jan 19 2025

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST MONDAY...

* WHAT...Sub-freezing temperatures as low as 27 expected.

* WHERE...Most of San Benito County and the Cholame Hills in 
  Southeast Monterey County, and Southern Salinas Valley/Arroyo Seco 
  and Lake San Antonio.

* WHEN...Until 9 AM PST Monday.

* IMPACTS...Cold conditions will be hazardous to sensitive 
  populations such as unhoused individuals. Cold conditions can lead 
  to hypothermia with prolonged exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

Be sure to open sink cabinet doors and/or drip faucets. This may 
help reduce or prevent damage to uninsulated pipes and other 
plumbing.

&&

$$

CAZ506-510-513>515-517-528-201700-
/O.CON.KMTR.FR.Y.0010.250120T0900Z-250120T1700Z/
North Bay Interior Valleys-East Bay Interior Valleys-Santa Clara
Valley Including San Jose-Eastern Santa Clara Hills-East Bay
Hills-Santa Lucia Mountains and Los Padres National Forest-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
1035 PM PST Sun Jan 19 2025

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST MONDAY...

* WHAT...Temperatures as low as 33 will result in frost formation.

* WHERE...The Santa Clara Valley and Eastern Hills, The East Bay 
  Hills and Valleys, Interior Monterey County and the Santa Lucia 
  Range, North Bay Interior Valleys, and Northern Salinas 
  Valley/Hollister Valley and Carmel Valley.

* WHEN...Until 9 AM PST Monday.

* IMPACTS...Cold conditions will be hazardous to sensitive 
  populations such as unhoused individuals. Cold conditions can lead 
  to hypothermia with prolonged exposure.

* ADDITIONAL DETAILS...Portions of far southern Monterey County, in 
  the vicinity of Fort Hunter Liggett, and the highest peaks in the 
  elevated terrain of eastern Santa Clara and Alameda Counties may 
  see locally colder weather closer to 30 degrees.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

Be sure to cover or tend to sensitive plants and vegetation as they 
may be damaged by frost.

&&

$$

CAZ504-201700-
/O.CON.KMTR.WI.Y.0004.250120T1200Z-250121T0900Z/
North Bay Interior Mountains-
1035 PM PST Sun Jan 19 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM MONDAY TO 1 AM PST 
TUESDAY...

* WHAT...North winds 20 to 30 mph with gusts up to 35 to 50 mph 
  expected. Stronger gusts of 50 to 60 mph are expected for the 
  highest peaks of the North Bay.

* WHERE...North Bay Interior Mountains.

* WHEN...From 4 AM Monday to 1 AM PST Tuesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Sarment

496 
WWUS76 KMTR 201644
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
844 AM PST Mon Jan 20 2025

CAZ516-518-201745-
/O.EXP.KMTR.FZ.W.0001.000000T0000Z-250120T1700Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Mountains of San Benito County And Interior Monterey County
including Pinnacles National Park-
844 AM PST Mon Jan 20 2025

...FREEZE WARNING WILL EXPIRE AT 9 AM PST THIS MORNING...

Temperatures are starting to rise across the interior Central Coast 
so will allow the freeze warning to expire at 9 AM. A few pockets of 
chilly, near freezing, temperatures are still present in far 
southeastern Monterey County but temperatures are expected to 
continue warming above freezing over the remainder of the morning.

$$

CAZ506-510-513>515-517-528-201745-
/O.EXP.KMTR.FR.Y.0010.000000T0000Z-250120T1700Z/
North Bay Interior Valleys-East Bay Interior Valleys-Santa Clara
Valley Including San Jose-Eastern Santa Clara Hills-East Bay
Hills-Santa Lucia Mountains and Los Padres National Forest-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
844 AM PST Mon Jan 20 2025

...FROST ADVISORY WILL EXPIRE AT 9 AM PST THIS MORNING...

Temperatures are rising across the Bay Area and Central Coast, so 
the frost advisory will be allowed to expire at 9 AM.

$$

CAZ504-210100-
/O.CON.KMTR.WI.Y.0004.000000T0000Z-250121T0900Z/
North Bay Interior Mountains-
844 AM PST Mon Jan 20 2025

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST TUESDAY...

* WHAT...North winds 20 to 30 mph with gusts up to 35 to 50 mph 
  expected. Stronger gusts of 50 to 60 mph are expected for the 
  highest peaks of the North Bay.

* WHERE...North Bay Interior Mountains.

* WHEN...Until 1 AM PST Tuesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Kennedy

741 
WWUS76 KMTR 201910
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
1110 AM PST Mon Jan 20 2025

CAZ515-210900-
/O.EXA.KMTR.WI.Y.0004.000000T0000Z-250121T0900Z/
East Bay Hills-
1110 AM PST Mon Jan 20 2025

...WIND ADVISORY IN EFFECT UNTIL 1 AM PST TUESDAY...

* WHAT...Northeast winds 10 to 20 mph with gusts up to 35 to 45 mph.

* WHERE...East Bay Hills.

* WHEN...Until 1 AM PST Tuesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

Secure loose outdoor objects that could be blown around or damaged 
by the wind.

&&

$$

CAZ504-210900-
/O.CON.KMTR.WI.Y.0004.000000T0000Z-250121T0900Z/
North Bay Interior Mountains-
1110 AM PST Mon Jan 20 2025

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST TUESDAY...

* WHAT...North winds 20 to 30 mph with gusts up to 35 to 50 mph 
  expected. Stronger gusts of 50 to 60 mph are expected for the 
  highest peaks of the North Bay.

* WHERE...North Bay Interior Mountains.

* WHEN...Until 1 AM PST Tuesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

Secure loose outdoor objects that could be blown around or damaged 
by the wind.

&&

$$

DialH

961 
WWUS76 KMTR 201929
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
1129 AM PST Mon Jan 20 2025

CAZ516-210330-
/O.NEW.KMTR.FZ.W.0002.250121T0900Z-250121T1700Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
1129 AM PST Mon Jan 20 2025

...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM PST TUESDAY...

* WHAT...Sub-freezing temperatures as low as 26 expected.

* WHERE...Southern Salinas Valley/Arroyo Seco and Lake San Antonio.

* WHEN...From 1 AM to 9 AM PST Tuesday.

* IMPACTS...Cold conditions will be hazardous to sensitive 
  populations such as unhoused individuals. Cold Conditions can lead 
  to hypothermia with prolonged exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

Be sure to open sink cabinet doors and/or drip faucets. This may 
help reduce or prevent damage to uninsulated pipes and other 
plumbing.

&&

$$

CAZ504-515-210330-
/O.NEW.KMTR.FR.Y.0011.250121T0900Z-250121T1700Z/
/O.CON.KMTR.WI.Y.0004.000000T0000Z-250121T0900Z/
North Bay Interior Mountains-East Bay Hills-
1129 AM PST Mon Jan 20 2025

...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM PST TUESDAY...
...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST TUESDAY...

* WHAT...For the Wind Advisory, north to northeast winds 20 to 30 
  mph with gusts up to 35 to 50 mph expected. Stronger gusts of 50 
  to 60 mph are expected for the highest peaks of the North Bay. For 
  the Frost Advisory, temperatures as low as 33 will result in frost 
  formation.

* WHERE...East Bay Hills and North Bay Interior Mountains.

* WHEN...For the Wind Advisory, until 1 AM PST Tuesday. For the 
  Frost Advisory, from 1 AM to 9 AM PST Tuesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result. Cold 
  conditions will be hazardous to sensitive populations such as 
  unhoused individuals. Cold Conditions can lead to hypothermia with 
  prolonged exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

Secure loose outdoor objects that could be blown around or damaged 
by the wind.

Take steps now to protect tender plants from the cold.

Be sure to cover or tend to sensitive plants and vegetation as they 
may be damaged by frost.

&&

$$

CAZ506-510-513-514-517-518-528-210330-
/O.NEW.KMTR.FR.Y.0011.250121T0900Z-250121T1700Z/
North Bay Interior Valleys-East Bay Interior Valleys-Santa Clara
Valley Including San Jose-Eastern Santa Clara Hills-Santa Lucia
Mountains and Los Padres National Forest-Mountains of San Benito
County And Interior Monterey County including Pinnacles National
Park-Northern Salinas Valley/Hollister Valley and Carmel Valley-
1129 AM PST Mon Jan 20 2025

...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM PST TUESDAY...

* WHAT...Temperatures as low as 33 will result in frost formation.

* WHERE...The Santa Clara Valley and Eastern Hills, Interior 
  Monterey County and the Santa Lucia Range, Most of San Benito 
  County and the Cholame Hills in Southeast Monterey County, North 
  Bay Interior Valleys, East Bay Interior Valleys, and Northern 
  Salinas Valley/Hollister Valley and Carmel Valley.

* WHEN...From 1 AM to 9 AM PST Tuesday.

* IMPACTS...Cold conditions will be hazardous to sensitive 
  populations such as unhoused individuals. Cold Conditions can lead 
  to hypothermia with prolonged exposure.

* ADDITIONAL DETAILS...Temperatures in the vicinity of Fort Hunter 
  Liggett and in portions of far southeastern Monterey County will 
  experience locally colder temperatures as low as 29 degrees.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

Be sure to cover or tend to sensitive plants and vegetation as they 
may be damaged by frost.

&&

$$

Kennedy

421 
WWUS76 KMTR 210314
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
714 PM PST Mon Jan 20 2025

CAZ504-515-211400-
/O.CAN.KMTR.WI.Y.0004.000000T0000Z-250121T0900Z/
/O.CON.KMTR.FR.Y.0011.250121T0900Z-250121T1700Z/
North Bay Interior Mountains-East Bay Hills-
714 PM PST Mon Jan 20 2025

...WIND ADVISORY IS CANCELLED...
...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM PST TUESDAY...

* WHAT...For the Wind Advisory, winds have diminished and are now 
  below advisory criteria. Therefore, the Wind Advisory will be 
  cancelled. For the Frost Advisory, temperatures as low as 31 will 
  result in frost formation.

* WHERE...East Bay Hills and North Bay Interior Mountains.

* WHEN...From 1 AM to 9 AM PST Tuesday.

* IMPACTS...Cold conditions will be hazardous to sensitive 
  populations such as unhoused individuals. Cold Conditions can lead 
  to hypothermia with prolonged exposure.

* ADDITIONAL DETAILS...Winds will still remain breezy with gusts of 
  30 to 40 mph possible this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

Be sure to cover or tend to sensitive plants and vegetation as they 
may be damaged by frost.

&&

$$

CAZ516-211400-
/O.CON.KMTR.FZ.W.0002.250121T0900Z-250121T1700Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
714 PM PST Mon Jan 20 2025

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM PST TUESDAY...

* WHAT...Sub-freezing temperatures as low as 26 expected.

* WHERE...Southern Salinas Valley/Arroyo Seco and Lake San Antonio.

* WHEN...From 1 AM to 9 AM PST Tuesday.

* IMPACTS...Cold conditions will be hazardous to sensitive 
  populations such as unhoused individuals. Cold Conditions can lead 
  to hypothermia with prolonged exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

Be sure to open sink cabinet doors and/or drip faucets. This may 
help reduce or prevent damage to uninsulated pipes and other 
plumbing.

&&

$$

CAZ506-510-513-514-517-518-528-211400-
/O.CON.KMTR.FR.Y.0011.250121T0900Z-250121T1700Z/
North Bay Interior Valleys-East Bay Interior Valleys-Santa Clara
Valley Including San Jose-Eastern Santa Clara Hills-Santa Lucia
Mountains and Los Padres National Forest-Mountains of San Benito
County And Interior Monterey County including Pinnacles National
Park-Northern Salinas Valley/Hollister Valley and Carmel Valley-
714 PM PST Mon Jan 20 2025

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM PST TUESDAY...

* WHAT...Temperatures as low as 33 will result in frost formation.

* WHERE...The Santa Clara Valley and Eastern Hills, Interior 
  Monterey County and the Santa Lucia Range, Most of San Benito 
  County and the Cholame Hills in Southeast Monterey County, North 
  Bay Interior Valleys, East Bay Interior Valleys, and Northern 
  Salinas Valley/Hollister Valley and Carmel Valley.

* WHEN...From 1 AM to 9 AM PST Tuesday.

* IMPACTS...Cold conditions will be hazardous to sensitive 
  populations such as unhoused individuals. Cold Conditions can lead 
  to hypothermia with prolonged exposure.

* ADDITIONAL DETAILS...Temperatures in the vicinity of Fort Hunter 
  Liggett and in portions of far southeastern Monterey County will 
  experience locally colder temperatures as low as 29 degrees.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

Be sure to cover or tend to sensitive plants and vegetation as they 
may be damaged by frost.

&&

$$

MM

Area Forecast Discussion
National Weather Service San Francisco CA
845 PM PST Sat Jan 18 2025

...New AVIATION, MARINE...

.SYNOPSIS...
Issued at 249 PM PST Sat Jan 18 2025

Cool weather continues with coastal and valley fog expected to
return again tonight. A Frost Advisory will be in effect from 1 AM
PST to 9 AM PST Sunday morning for portions of the interior
Central Coast. Gusty offshore winds remain likely Monday into
Tuesday with peak gusts between 35 to 40 mph across the interior
North Bay Mountains.

&&

.UPDATE...
Issued at 758 PM PST Sat Jan 18 2025

Not a bad way to finish a Saturday weather wise, relatively light
winds, clear skies and above normal temperatures. High
temperatures this afternoon topped out in the mid 50s to lower
60s, which is a few degrees within climatology.

Near term weather impacts will be the return of the marine layer
tonight and ongoing Frost Advisory. The marine layer retreated
westward during the afternoon and is slowly inching/reforming to
the coast. Lastest satellite imagery shows some lower stratus
expanding around the Monterey Peninsula and the San Mateo coast.
Latest guidance shows this stratus expanding and moving inland
(similar to latest night). Xsection put the developing marine
layer in the 1500-2000 foot range. That being said, do not expect
the stratus to reach the southern Salinas Valley. As such, clear
skies and light winds will be ideal for radiation cooling. A Frost
Advisory remains in effect for interior Central Coast with
temperatures below 36 degrees. In fact, the coldest sheltered
regions (Lockwood, Ft Hunter Liggett) will reach the upper 20s. As
noted below some lower confidence on temperatures outside of the
Frost Advisory, especially interior valleys locations. Similar to
last night's concerns : marine layer clouds equals warmer
overnight lows and clear skies equals colder overnight lows.
Probabilistic guidance suggest N and E Valleys reaching the mid-
upper 30s, which is chilly, but not cold enough for a Frost
Advisory.

No update needed at this time.

A quick peek at the 00Z hi-res WRF guidance for Monday - still
looking offshore with peak winds late Sunday night and early
Monday. Gradient will yield peak winds of 50-60 mph over the
highest peaks of the N Bay and 35-50 mph for other higher terrain
the Bay Area. Will continue to fine tune this as Sunday night
nears.

MM

&&

.SHORT TERM...
(This evening through Sunday)
Issued at 249 PM PST Sat Jan 18 2025

Satellite shows stratus has primarily dissipated across the Bay Area
and Central Coast. Pleasant conditions continue through the
remainder of Saturday with widespread highs in the upper 50s to low
60s. Another chilly morning is on tap tomorrow with a Frost Advisory
in effect from 1 AM PST to 9 AM PST for interior Monterey and San
Benito Counties with temperatures in the low 30s expected. Portions
of far southeastern Monterey County may drop into the upper 20s.
Elsewhere, temperatures will hover in the mid 30s to low 40s with
most locations staying just above Frost Advisory criteria. In terms
of the forecast, temperatures were adjusted upwards by a few degrees
across the valleys (excluding the southern Salinas Valley) and along
the Monterey Bay Coastline. Temperatures in the straight NBM
forecast leaned too cold in comparison to the scenarios suggested by
WRF and MOS guidance. In fact, for some locations across the North
Bay the NBM deterministic and NBM 90th percentile (typically the
warmest temperature forecast) were equal to each other. An
additional complicating factor for tonight's temperature forecast is
return of widespread stratus and fog tonight. A cut off upper level
low continues to linger just off of the California Coast, serving to
compress the marine layer and increase the likelihood of stratus and
fog across the region. The North Bay Valleys (highest confidence),
Bay Shoreline, East Bay Valleys, and Santa Clara Valley (lowest
confidence) all look likely to develop fog tonight. Any locations
where stratus or foggy conditions develop tonight are likely to
experience less radiational cooling and prevent low temperatures
from dropping as much as the models say they will. High resolution
models suggest that stratus and fog could develop as early as 9 PM
PST in the North Bay Valleys and between 12 AM PST to 3 AM PST for
the Bay Shoreline, East Bay Valleys, and Santa Clara Valley. The
combination of the NBM leaning too cold and widespread stratus/fog
expected tonight contributed to the decision to limit Frost
Advisories to the interior Central Coast. It is worth noting that if
stratus/fog does not develop as expected then temperatures may be
able to cool a few more degrees than they would have otherwise.

&&

.LONG TERM...
(Sunday night through next Friday)
Issued at 249 PM PST Sat Jan 18 2025

An upper level cut off low lingering off the California Coast will
weaken and gradually merge with upper level ridging over the Pacific
Ocean. At the same time, a strong upper level trough will move
inland over the Central United States. As the inland trough
strengthens, it will become positively tilted (trough axis oriented
from the northeast to southwest) and dig into the Southwest United
States. This will lead to an "inside slider" type setup which is
likely to bring gusty offshore winds to our area. Confidence has
continued to increase that we will see strong offshore winds across
the North Bay interior mountains as the trough digs/the pressure
gradient strengthens Monday into Tuesday. The strongest winds are
likely to occur between Monday morning and early Tuesday morning.
Sustained winds across the North Bay interior mountains are likely
to be between 30 to 40 mph with gusts to around 50 mph possible on
the highest ridgetops. Local, high resolution WRF guidance suggests
that isolated stronger gusts may be possible across the highest
ridgetops in the North Bay. Gusty winds to around 25 mph are likely
to develop across the East Bay hills and along the San Francisco/San
Mateo Peninsula during the same time frame. Fire concerns remain low
as fuel moistures remain high thanks to rainfall from earlier this
winter.

High temperatures will stay in the upper 50s to low 60s through
midweek. A gradual warming trend is expected to occur mid to late
week with most inland sites warming to the mid to upper 60s. Cold
mornings will continue throughout the rest of the week with lows
generally in the 30s to low 40s across the region. Additional Frost
Advisories are likely to be considered as we move through the week
for the coldest locations. Now a response to the age old question:
"where's the rain?" Long range guidance shows an upper level
trough moving through the Western United States the weekend of the
25th through the 28th. NBM guidance has started to populate low
PoP values on the 25th/26th but confidence in this event remains
low given that most ensembles still show either no rain or only a
few hundredths of an inch. Potentially more exciting news on the
rain front, however, is that the CPC has introduced a 50-55%
chance of above normal rainfall for much of our area in their
weeks 3-4 outlook (February 1-14). While this is unfortunately a
few weeks away, it is still a good indication of when we can
expect the rain to return again.

&&

.AVIATION...
(06Z TAFS)
Issued at 845 PM PST Sat Jan 18 2025

Mostly VFR with some MVFR ceilings building along the coastal
terminals. MVFR/IFR/LIFR conditions are expected overnight with
higher confidence of fog/low stratus over the North Bay and Monterey
Bay as the marine layer compresses. Confidence remains moderate that
the remaining terminals will see low VIS and CIGs overnight but
several models show MVFR/IFR conditions until 19-20Z. There is some
models that show terminals clearing as late as 21Z with Monterey
Bay terminals seeing clearing in the late afternoon. Confidence is
low at this moment on timing of low CIGs and VIS Sunday night,
but models show a stronger signal for return after 06Z. Winds will
continue to remain light to moderate through the TAF period.

Vicinity of SFO...VFR with a FEW low status building. There is
moderate confidence that MVFR/IFR conditions will build overnight
and clear by 20Z. Models show there is a possibility of a return
of VFR conditions after 21Z. Light winds build to moderate and
onshore by Sunday afternoon.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...MVFR conditions with a chance for CIGs to
lower to IFR. Confidence is low to moderate on ceiling height and
visibility but expect MVFR/IFR conditions through most of the TAF
period for KMRY with a break during the afternoon hours for KMRY.
KSNS is expected to see VFR through the remainder of the TAF period
after 18Z, but there is a chance for MVFR conditions to return
towards 05-06Z.
&&

.MARINE...
(Tonight through next Friday)
Issued at 845 PM PST Sat Jan 18 2025

Moderate northwest breezes continue through Sunday with high
pressure continuing to support dry conditions. Compression of the
marine layer promote fog and low clouds during the overnight
periods. Moderate offshore breezes early next week will limit fog
and low cloud development.

&&

.BEACHES...
Issued at 432 AM PST Sat Jan 18 2025

A long period westerly swell with a period up to 22 seconds will
result in a moderate to high risk of sneaker waves and bring an
increased risk of rip currents beginning today and lingering
through Monday. For beachgoers to remain safe it is vital to keep
off of jetties and rocks, keep pets on a leash, observe the ocean
for 20 minutes before recreating on the beach or in the water, and
never turn your back on the ocean. A Beach Hazards Statement has
been issued for all Pacific Coast beaches from 7 PM today through
7 PM Monday.

Sarment

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...Beach Hazards Statement through Monday evening for CAZ006-505-
     509-529-530.

     Frost Advisory from 1 AM to 9 AM PST Sunday for CAZ516>518.

PZ...None.
&&

SHORT TERM...Kennedy
LONG TERM....Kennedy
AVIATION...SO
MARINE...SO

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