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Frost Advisory 0011
Issued by the Eureka Forecast Office

Action Issued Starts Expiration
New 2025-04-03 05:28:07 2025-04-04 04:00:00 2025-04-04 11:00:00
New 2025-04-03 05:28:07 2025-04-04 04:00:00 2025-04-04 11:00:00
Continued 2025-04-03 10:43:16 2025-04-04 04:00:00 2025-04-04 11:00:00
Continued 2025-04-03 10:43:16 2025-04-04 04:00:00 2025-04-04 11:00:00
Continued 2025-04-03 16:36:29 2025-04-04 04:00:00 2025-04-04 11:00:00
Continued 2025-04-04 00:31:19 2025-04-04 04:00:00 2025-04-04 11:00:00
Continued 2025-04-04 08:30:44 2025-04-04 11:00:00
Expired 2025-04-04 10:45:19 2025-04-04 11:00:00


Action: New
Issued At: 2025-04-03 05:28:07

911 
WWUS76 KEKA 031027
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
327 AM PDT Thu Apr 3 2025

CAZ110-111-114-031830-
/O.NEW.KEKA.FR.Y.0011.250404T0900Z-250404T1600Z/
/O.CON.KEKA.FZ.W.0006.000000T0000Z-250403T1600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Northern Lake-
Including Willits, Covelo, Gravelly Valley Airport, Potter
Valley, and Laytonville
327 AM PDT Thu Apr 3 2025

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PDT FRIDAY...
...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low as 
  29. For the Frost Advisory, temperatures as low as 33 will result 
  in frost formation.

* WHERE...Northern Mendocino Interior, and Northern Lake.

* WHEN...For the Freeze Warning, until 9 AM PDT this morning. For 
  the Frost Advisory, from 2 AM to 9 AM PDT Friday.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ113-115-031830-
/O.NEW.KEKA.FR.Y.0011.250404T0900Z-250404T1600Z/
/O.CON.KEKA.FR.Y.0010.000000T0000Z-250403T1600Z/
Southeastern Mendocino Interior-Southern Lake-
Including Lakeport, Ukiah, Finley, Hidden Valley Lake, Clearlake,
Talmage, Middletown, Hopland, Clearlake Park, Calpella, and
Redwood Valley
327 AM PDT Thu Apr 3 2025

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PDT FRIDAY...
...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING...

* WHAT...For the first Frost Advisory, temperatures as low as 33 
  will result in frost formation. For the second Frost Advisory, 
  temperatures as low as 33 will result in frost formation.

* WHERE...Southeastern Mendocino Interior and Southern Lake.

* WHEN...For the first Frost Advisory, until 9 AM PDT this morning. 
  For the second Frost Advisory, from 2 AM to 9 AM PDT Friday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ112-031600-
/O.CON.KEKA.FR.Y.0010.000000T0000Z-250403T1600Z/
Southwestern Mendocino Interior-
Including Comptche and Boonville
327 AM PDT Thu Apr 3 2025

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

* WHAT...Temperatures as low as 34 will result in frost formation.

* WHERE...Southwestern Mendocino Interior.

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

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

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

JLW


Action: New
Issued At: 2025-04-03 05:28:07

911 
WWUS76 KEKA 031027
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
327 AM PDT Thu Apr 3 2025

CAZ110-111-114-031830-
/O.NEW.KEKA.FR.Y.0011.250404T0900Z-250404T1600Z/
/O.CON.KEKA.FZ.W.0006.000000T0000Z-250403T1600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Northern Lake-
Including Willits, Covelo, Gravelly Valley Airport, Potter
Valley, and Laytonville
327 AM PDT Thu Apr 3 2025

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PDT FRIDAY...
...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low as 
  29. For the Frost Advisory, temperatures as low as 33 will result 
  in frost formation.

* WHERE...Northern Mendocino Interior, and Northern Lake.

* WHEN...For the Freeze Warning, until 9 AM PDT this morning. For 
  the Frost Advisory, from 2 AM to 9 AM PDT Friday.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ113-115-031830-
/O.NEW.KEKA.FR.Y.0011.250404T0900Z-250404T1600Z/
/O.CON.KEKA.FR.Y.0010.000000T0000Z-250403T1600Z/
Southeastern Mendocino Interior-Southern Lake-
Including Lakeport, Ukiah, Finley, Hidden Valley Lake, Clearlake,
Talmage, Middletown, Hopland, Clearlake Park, Calpella, and
Redwood Valley
327 AM PDT Thu Apr 3 2025

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PDT FRIDAY...
...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING...

* WHAT...For the first Frost Advisory, temperatures as low as 33 
  will result in frost formation. For the second Frost Advisory, 
  temperatures as low as 33 will result in frost formation.

* WHERE...Southeastern Mendocino Interior and Southern Lake.

* WHEN...For the first Frost Advisory, until 9 AM PDT this morning. 
  For the second Frost Advisory, from 2 AM to 9 AM PDT Friday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ112-031600-
/O.CON.KEKA.FR.Y.0010.000000T0000Z-250403T1600Z/
Southwestern Mendocino Interior-
Including Comptche and Boonville
327 AM PDT Thu Apr 3 2025

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

* WHAT...Temperatures as low as 34 will result in frost formation.

* WHERE...Southwestern Mendocino Interior.

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

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

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

JLW


Action: Continued
Issued At: 2025-04-03 10:43:16

011 
WWUS76 KEKA 031542
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
842 AM PDT Thu Apr 3 2025

CAZ110-111-114-032345-
/O.EXP.KEKA.FZ.W.0006.000000T0000Z-250403T1600Z/
/O.CON.KEKA.FR.Y.0011.250404T0900Z-250404T1600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Northern Lake-
Including Covelo, Willits, Potter Valley, Laytonville, and
Gravelly Valley Airport
842 AM PDT Thu Apr 3 2025

...FREEZE WARNING WILL EXPIRE AT 9 AM PDT THIS MORNING...
...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT FRIDAY...

* WHAT...Temperatures as low as 29 will result in frost formation.

* WHERE...Northern Mendocino Interior, and Northern Lake.

* WHEN...From 2 AM to 9 AM PDT Friday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ113-115-032345-
/O.EXP.KEKA.FR.Y.0010.000000T0000Z-250403T1600Z/
/O.CON.KEKA.FR.Y.0011.250404T0900Z-250404T1600Z/
Southeastern Mendocino Interior-Southern Lake-
Including Ukiah, Talmage, Clearlake Park, Finley, Redwood Valley,
Hidden Valley Lake, Clearlake, Middletown, Calpella, Lakeport,
and Hopland
842 AM PDT Thu Apr 3 2025

...FROST ADVISORY WILL EXPIRE AT 9 AM PDT THIS MORNING...
...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT FRIDAY...

* WHAT...Temperatures as low as 32 will result in frost formation.

* WHERE...Southeastern Mendocino Interior and Southern Lake.

* WHEN...From 2 AM to 9 AM PDT Friday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ112-031645-
/O.EXP.KEKA.FR.Y.0010.000000T0000Z-250403T1600Z/
Southwestern Mendocino Interior-
Including Boonville and Comptche
842 AM PDT Thu Apr 3 2025

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

$$

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

JHW


Action: Continued
Issued At: 2025-04-03 10:43:16

011 
WWUS76 KEKA 031542
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
842 AM PDT Thu Apr 3 2025

CAZ110-111-114-032345-
/O.EXP.KEKA.FZ.W.0006.000000T0000Z-250403T1600Z/
/O.CON.KEKA.FR.Y.0011.250404T0900Z-250404T1600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Northern Lake-
Including Covelo, Willits, Potter Valley, Laytonville, and
Gravelly Valley Airport
842 AM PDT Thu Apr 3 2025

...FREEZE WARNING WILL EXPIRE AT 9 AM PDT THIS MORNING...
...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT FRIDAY...

* WHAT...Temperatures as low as 29 will result in frost formation.

* WHERE...Northern Mendocino Interior, and Northern Lake.

* WHEN...From 2 AM to 9 AM PDT Friday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ113-115-032345-
/O.EXP.KEKA.FR.Y.0010.000000T0000Z-250403T1600Z/
/O.CON.KEKA.FR.Y.0011.250404T0900Z-250404T1600Z/
Southeastern Mendocino Interior-Southern Lake-
Including Ukiah, Talmage, Clearlake Park, Finley, Redwood Valley,
Hidden Valley Lake, Clearlake, Middletown, Calpella, Lakeport,
and Hopland
842 AM PDT Thu Apr 3 2025

...FROST ADVISORY WILL EXPIRE AT 9 AM PDT THIS MORNING...
...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT FRIDAY...

* WHAT...Temperatures as low as 32 will result in frost formation.

* WHERE...Southeastern Mendocino Interior and Southern Lake.

* WHEN...From 2 AM to 9 AM PDT Friday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ112-031645-
/O.EXP.KEKA.FR.Y.0010.000000T0000Z-250403T1600Z/
Southwestern Mendocino Interior-
Including Boonville and Comptche
842 AM PDT Thu Apr 3 2025

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

$$

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

JHW


Action: Continued
Issued At: 2025-04-03 16:36:29

246 
WWUS76 KEKA 032136
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
236 PM PDT Thu Apr 3 2025

CAZ110-111-113>115-040545-
/O.CON.KEKA.FR.Y.0011.250404T0900Z-250404T1600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Southeastern Mendocino Interior-Northern Lake-Southern Lake-
Including Covelo, Willits, Redwood Valley, Potter Valley,
Laytonville, Gravelly Valley Airport, and Calpella
236 PM PDT Thu Apr 3 2025

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT FRIDAY...

* WHAT...Temperatures as low as 30 will result in frost formation.

* WHERE...Lake County, Northern Mendocino Interior, and Southeastern 
  Mendocino Interior.

* WHEN...From 2 AM to 9 AM PDT Friday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

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

JHW


Action: Continued
Issued At: 2025-04-04 00:31:19

404 
WWUS76 KEKA 040531
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1031 PM PDT Thu Apr 3 2025

CAZ110-111-113>115-041345-
/O.CON.KEKA.FR.Y.0011.250404T0900Z-250404T1600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Southeastern Mendocino Interior-Northern Lake-Southern Lake-
Including Redwood Valley, Willits, Potter Valley, Covelo,
Calpella, Gravelly Valley Airport, and Laytonville
1031 PM PDT Thu Apr 3 2025

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT FRIDAY...

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

* WHERE...Lake County, Northern Mendocino Interior, and Southeastern 
  Mendocino Interior.

* WHEN...From 2 AM to 9 AM PDT Friday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

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

MKK


Action: Continued
Issued At: 2025-04-04 08:30:44

917 
WWUS76 KEKA 041330
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
630 AM PDT Fri Apr 4 2025

CAZ110-111-113>115-041600-
/O.CON.KEKA.FR.Y.0011.000000T0000Z-250404T1600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Southeastern Mendocino Interior-Northern Lake-Southern Lake-
Including Redwood Valley, Gravelly Valley Airport, Laytonville,
Potter Valley, Willits, Calpella, and Covelo
630 AM PDT Fri Apr 4 2025

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

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

* WHERE...Lake County, Northern Mendocino Interior, and Southeastern 
  Mendocino Interior.

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

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

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

JLW


Action: Expired
Issued At: 2025-04-04 10:45:19

628 
WWUS76 KEKA 041544
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
844 AM PDT Fri Apr 4 2025

CAZ110-111-113>115-041645-
/O.EXP.KEKA.FR.Y.0011.000000T0000Z-250404T1600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Southeastern Mendocino Interior-Northern Lake-Southern Lake-
Including Redwood Valley, Covelo, Laytonville, Calpella, Potter
Valley, Gravelly Valley Airport, and Willits
844 AM PDT Fri Apr 4 2025

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

The threat has ended.

$$

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

JHW



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