108
WWUS76 KMTR 220435
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
935 PM PDT Thu Aug 21 2025

CAZ506-508-220545-
/O.EXP.KMTR.HT.Y.0004.000000T0000Z-250822T0500Z/
North Bay Interior Valleys-San Francisco Bay Shoreline-
935 PM PDT Thu Aug 21 2025

...HEAT ADVISORY WILL EXPIRE AT 10 PM PDT THIS EVENING...

Temperatures are decreasing below critical heat levels. Thus, the
Heat Advisory will be allowed to expire.

$$

CAZ504-510-513>518-221300-
/O.CON.KMTR.HT.Y.0004.000000T0000Z-250824T0400Z/
North Bay Interior Mountains-East Bay Interior Valleys-Santa
Clara Valley Including San Jose-Eastern Santa Clara Hills-East
Bay Hills-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-
935 PM PDT Thu Aug 21 2025

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY...

* WHAT...Daytime temperatures in the 90s to low 100s expected.
  Nighttime temperatures in the low 60s in the Santa Clara Valley
  and upper 60s to mid 70s at higher elevations.

* WHERE...The Santa Clara Valley and Eastern Hills, The East Bay
  Hills and Valleys, Interior Monterey County and the Santa Lucia
  Range, Most of San Benito County and the Cholame Hills in
  Southeast Monterey County, North Bay Interior Mountains, and
  Southern Salinas Valley/Arroyo Seco and Lake San Antonio.

* WHEN...Until 9 PM PDT Saturday.

* IMPACTS...Hot conditions can cause heat illnesses. This level of
  heat affects most individuals sensitive to heat, especially those
  without effective cooling and/or adequate hydration. Impacts
  possible in some health systems and in heat-sensitive industries.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Hydration is a critical piece to surviving the heat. Drink water,
and if possible, take water to those who are vulnerable.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to the early
morning or evening. Take action when you experience symptoms of heat
exhaustion and/or heat stroke.

Beat the heat and check the backseat! Do not leave young children or
pets in unattended vehicles.

&&

$$

CAZ512-221300-
/O.CON.KMTR.HT.Y.0004.000000T0000Z-250823T0500Z/
Santa Cruz Mountains-
935 PM PDT Thu Aug 21 2025

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY...

* WHAT...Daytime temperatures in the 90s with nighttime temperatures
  ranging from upper 50s in San Mateo County to mid 70s along the
  ridge.

* WHERE...The Santa Cruz Mountains.

* WHEN...Until 10 PM PDT Friday.

* IMPACTS...Hot conditions can cause heat illnesses. This level of
  heat affects most individuals sensitive to heat, especially those
  without effective cooling and/or adequate hydration. Impacts
  possible in some health systems and in heat-sensitive industries.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Hydration is a critical piece to surviving the heat. Drink water,
and if possible, take water to those who are vulnerable.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to the early
morning or evening. Take action when you experience symptoms of heat
exhaustion and/or heat stroke.

Beat the heat and check the backseat! Do not leave young children or
pets in unattended vehicles.

&&

$$

DialH