511
WWUS76 KEKA 090401
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
901 PM PDT Fri Aug 8 2025

CAZ102-091800-
/O.CON.KEKA.HT.Y.0004.250809T1600Z-250810T0500Z/
/O.CON.KEKA.HT.Y.0003.250810T1600Z-250811T0800Z/
Del Norte Interior-
901 PM PDT Fri Aug 8 2025

...HEAT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 10 PM PDT SATURDAY...
...HEAT ADVISORY REMAINS IN EFFECT FROM 9 AM SUNDAY TO 1 AM PDT
MONDAY...

* WHAT...For the First Heat Advisory on Saturday, highs up to 105
  with overnight lows in the mid 60s. For the Second Heat Advisory
  Sunday, highs in the low 100 with overnight lows approaching 70.

* WHERE...Del Norte Interior.

* WHEN...For the first Heat Advisory, from 9 AM to 10 PM PDT
  Saturday. For the second Heat Advisory, from 9 AM Sunday to 1 AM
  PDT Monday.

* IMPACTS...Major risk of heat-related illness for anyone without
  effective cooling and/or adequate hydration.

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.

&&

$$

CAZ105-091800-
/O.CON.KEKA.HT.Y.0004.250809T1600Z-250810T0500Z/
/O.CON.KEKA.HT.Y.0003.250810T1600Z-250811T0800Z/
Northern Humboldt Interior-
Including Orleans and Willow Creek
901 PM PDT Fri Aug 8 2025

...HEAT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 10 PM PDT SATURDAY...
...HEAT ADVISORY REMAINS IN EFFECT FROM 9 AM SUNDAY TO 1 AM PDT
MONDAY...

* WHAT...For the First Heat Advisory on Saturday, highs 105 to 110
  with lows in the mid 60s overnight. For the Second Heat Advisory
  on Sunday, highs 100 to 110 and lows approaching 70 overnight.

* WHERE...Northern Humboldt Interior.

* WHEN...For the first Heat Advisory, from 9 AM to 10 PM PDT
  Saturday. For the second Heat Advisory, from 9 AM Sunday to 1 AM
  PDT Monday.

* IMPACTS...Major risk of heat-related illness for anyone without
  effective cooling and/or adequate hydration.

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.

&&

$$

CAZ107-091800-
/O.CON.KEKA.HT.Y.0004.250809T1600Z-250810T0500Z/
/O.CON.KEKA.HT.Y.0003.250810T1600Z-250811T0800Z/
Northern Trinity-
Including Weaverville, Big Bar, Del Loma, Douglas City, and
Carrville
901 PM PDT Fri Aug 8 2025

...HEAT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 10 PM PDT SATURDAY...
...HEAT ADVISORY REMAINS IN EFFECT FROM 9 AM SUNDAY TO 1 AM PDT
MONDAY...

* WHAT...For the First Heat Advisory on Saturday, highs 105 to 110
  with lows in the mid to upper 60s. For the Second Heat Advisory on
  Sunday, major heatrisk in valleys with highs up to 112 and lows
  near 70 overnight.

* WHERE...Northern Trinity.

* WHEN...For the first Heat Advisory, from 9 AM to 10 PM PDT
  Saturday. For the second Heat Advisory, from 9 AM Sunday to 1 AM
  PDT Monday.

* IMPACTS...Major risk of heat-related illness for anyone without
  effective cooling and/or adequate hydration.

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.

&&

$$

CAZ113-091800-
/O.CON.KEKA.HT.Y.0004.250809T1600Z-250810T0500Z/
/O.CON.KEKA.HT.Y.0003.250810T1600Z-250811T0800Z/
Southeastern Mendocino Interior-
Including Ukiah, Redwood Valley, and Calpella
901 PM PDT Fri Aug 8 2025

...HEAT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 10 PM PDT SATURDAY...
...HEAT ADVISORY REMAINS IN EFFECT FROM 9 AM SUNDAY TO 1 AM PDT
MONDAY...

* WHAT...Highs up to 105 and lows approaching 70 overnight for both
  Heat Advisories.

* WHERE...Southeastern Mendocino Interior.

* WHEN...For the first Heat Advisory, from 9 AM to 10 PM PDT
  Saturday. For the second Heat Advisory, from 9 AM Sunday to 1 AM
  PDT Monday.

* IMPACTS...Major risk of heat-related illness for anyone without
  effective cooling and/or adequate hydration.

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.

&&

$$

CAZ110-091800-
/O.CON.KEKA.HT.Y.0004.250809T1600Z-250810T0500Z/
Northwestern Mendocino Interior-
901 PM PDT Fri Aug 8 2025

...HEAT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 10 PM PDT SATURDAY...

* WHAT...Highs from up to 105F and lows in the mid to upper 60s
  overnight.

* WHERE...Northwestern Mendocino Interior.

* WHEN...From 9 AM to 10 PM PDT Saturday.

* IMPACTS...Major risk of heat-related illness for anyone without
  effective cooling and/or adequate hydration.

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.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

ZVS