Alert archive / California / Red Flag Warnings in 2020

Red Flag Warning 6, NWS Eureka, CA

August 17, 2020

NWS Eureka, CA issued this red flag warning at Aug 17, 2020, 3:47 AM PDT. It took effect at Aug 17, 2020, 6:00 AM PDT. It was in force for 13 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 17, 2020, 3:47 AM PDT (10:47 UTC)
In effect from
Aug 17, 2020, 6:00 AM PDT
Expired
Aug 17, 2020, 7:02 PM PDT
In force
13 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

053 
WWUS86 KEKA 171047
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
347 AM PDT Mon Aug 17 2020

...ANOTHER ROUND OF THUNDERSTORMS EXPECTED TODAY FOR PORTIONS OF 
MENDOCINO, LAKE, AND TRINITY COUNTIES....

Another round of abundant lightning activity will develop this 
morning across Lake and Mendocino Counties and then spread 
northward into Trinity County by afternoon. These thunderstorms 
will be dry and capable of causing new fire starts due to their 
fast movement, coupled with very dry fuels and low humidities. 
Gusty and erratic winds may also accompany some storms as rain 
evaporates before reaching the ground. 

CAZ264-276-277-172230-
/O.CAN.KEKA.FW.W.0005.000000T0000Z-200817T1800Z/
/O.NEW.KEKA.FW.W.0006.200817T1300Z-200818T0000Z/
Lake County Portion of Lake/Napa/Sonoma RU-Interior Mendocino-
W Mendocino NF/E Mendocino Unit-
347 AM PDT Mon Aug 17 2020

...RED FLAG WARNING IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON...

The National Weather Service in Eureka has issued a Red Flag
Warning, which is in effect until 5 PM PDT this afternoon. 

* AFFECTED AREA...Fire weather zone 264.Fire weather zone 
  276.Fire weather zone 277. 

* THUNDERSTORMS...Fast moving thunderstorms will pose a threat 
  for fire starts due to lightning.

* WINDS...Erratic, gusty outflow winds will be possible in and 
  around thunderstorms. Winds outside of storms will be 
  lighter, but west-northwest breezes will pick up late Monday 
  afternoon and evening.

* IMPACTS...Higher potential for wildfire starts in proximity 
  to thunderstorms due to lightning. Any fires that develop may 
  spread rapidly due to the combination of dry fuels and low 
  humidity. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

&&

$$

CAZ212-172230-
/O.NEW.KEKA.FW.W.0006.200817T1700Z-200818T0000Z/
Van Duzen/Mad River-
347 AM PDT Mon Aug 17 2020

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 5 PM PDT
THIS AFTERNOON...

The National Weather Service in Eureka has issued a Red Flag
Warning, which is in effect from 10 AM this morning to 5 PM PDT
this afternoon. 

* AFFECTED AREA...Fire weather zone 212.

* THUNDERSTORMS...Fast moving thunderstorms will pose a threat 
  for fire starts due to lightning.

* WINDS...Erratic, gusty outflow winds will be possible in and 
  around thunderstorms. Winds outside of storms will be 
  lighter, but west-northwest breezes will pick up late Monday 
  afternoon and evening.

* IMPACTS...Higher potential for wildfire starts in proximity 
  to thunderstorms due to lightning. Any fires that develop may 
  spread rapidly due to the combination of dry fuels and low 
  humidity. Outdoor burning is not recommended.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

&&

$$

CAZ283-172230-
/O.NEW.KEKA.FW.W.0006.200817T1700Z-200818T0300Z/
Trinity-
347 AM PDT Mon Aug 17 2020

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT
THIS EVENING...

The National Weather Service in Eureka has issued a Red Flag
Warning, which is in effect from 10 AM this morning to 8 PM PDT
this evening. 

* AFFECTED AREA...Fire weather zone 283.

* THUNDERSTORMS...Fast moving thunderstorms will pose a threat 
  for fire starts due to lightning.

* WINDS...Erratic, gusty outflow winds will be possible in and 
  around thunderstorms. Winds outside of storms will be 
  lighter, but west-northwest breezes will pick up late Monday 
  afternoon and evening.

* IMPACTS...Higher potential for wildfire starts in proximity 
  to thunderstorms due to lightning. Any fires that develop may 
  spread rapidly due to the combination of dry fuels and low 
  humidity. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

&&

$$


http://weather.gov/eureka
3 follow-up statements
895 
WWUS86 KEKA 172225
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
325 PM PDT Mon Aug 17 2020

...ANOTHER ROUND OF THUNDERSTORMS EXPECTED TODAY FOR PORTIONS OF
MENDOCINO, LAKE, AND TRINITY COUNTIES....

Abundant lightning activity lingers for a few more hours this 
afternoon across Lake and Mendocino Counties, with continuing 
chances in eastern Trinity County this evening. These 
thunderstorms will be dry and capable of causing new fire starts 
due to their fast movement, coupled with very dry fuels and low 
humidities. Gusty and erratic winds may also accompany some storms
as rain evaporates before reaching the ground.

CAZ212-172330-
/O.CAN.KEKA.FW.W.0006.000000T0000Z-200818T0000Z/
Van Duzen/Mad River-
325 PM PDT Mon Aug 17 2020

...RED FLAG WARNING IS CANCELLED...

The National Weather Service in Eureka has cancelled the Red Flag
Warning. 

$$

CAZ264-276-277-180000-
/O.CON.KEKA.FW.W.0006.000000T0000Z-200818T0000Z/
Lake County Portion of Lake/Napa/Sonoma RU-Interior Mendocino-
W Mendocino NF/E Mendocino Unit-
325 PM PDT Mon Aug 17 2020

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON...

* AFFECTED AREA...Fire weather zone 264.Fire weather zone 
  276.Fire weather zone 277. 

* THUNDERSTORMS...Fast moving thunderstorms will pose a threat 
  for fire starts due to lightning.

* WINDS...Erratic, gusty outflow winds will be possible in and 
  around thunderstorms. Winds outside of storms will be 
  lighter, but west-northwest breezes will pick up late Monday 
  afternoon and evening.

* IMPACTS...Higher potential for wildfire starts in proximity 
  to thunderstorms due to lightning. Any fires that develop may 
  spread rapidly due to the combination of dry fuels and low 
  humidity. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

&&

$$

CAZ283-180300-
/O.CON.KEKA.FW.W.0006.000000T0000Z-200818T0300Z/
Trinity-
325 PM PDT Mon Aug 17 2020

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...

* AFFECTED AREA...Fire weather zone 283.

* THUNDERSTORMS...Fast moving thunderstorms will pose a threat 
  for fire starts due to lightning.

* WINDS...Erratic, gusty outflow winds will be possible in and 
  around thunderstorms. Winds outside of storms will be 
  lighter, but west-northwest breezes will pick up late Monday 
  afternoon and evening.

* IMPACTS...Higher potential for wildfire starts in proximity 
  to thunderstorms due to lightning. Any fires that develop may 
  spread rapidly due to the combination of dry fuels and low 
  humidity. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

&&

$$


http://weather.gov/eureka
976 
WWUS86 KEKA 172358
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
458 PM PDT Mon Aug 17 2020

...THUNDERSTORMS CONTINUE THIS EVENING FOR PORTIONS OF MENDOCINO,
LAKE, AND TRINITY COUNTIES....

Scattered thunderstorms will continue to produce abundant 
lightning activity for a few more hours this evening across Lake 
and Mendocino Counties, potentially moving into eastern Trinity 
County as well. The fast movement of these thunderstorms will
produce little rainfall in any one location, leading to increased 
potential for new fire starts given very dry fuels and low 
humidities. Gusty and erratic winds may also accompany these 
storms.

CAZ264-276-277-180200-
/O.EXT.KEKA.FW.W.0006.000000T0000Z-200818T0200Z/
Lake County Portion of Lake/Napa/Sonoma RU-Interior Mendocino-
W Mendocino NF/E Mendocino Unit-
458 PM PDT Mon Aug 17 2020

...RED FLAG WARNING NOW IN EFFECT UNTIL 7 PM PDT THIS EVENING...

* AFFECTED AREA...Fire weather zones 264, 276 and 277.

* THUNDERSTORMS...Fast moving dry thunderstorms will pose a 
  threat for fire starts due to lightning.

* WINDS...Erratic, gusty outflow winds will be possible in and
  around thunderstorms. Winds outside of storms will be lighter,
  but west-northwest breezes will pick up this evening.

* IMPACTS...Higher potential for wildfire starts in proximity 
  to thunderstorms due to lightning. Any fires that develop may 
  spread rapidly due to the combination of dry fuels and low 
  humidity. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

&&

$$

CAZ283-180300-
/O.CON.KEKA.FW.W.0006.000000T0000Z-200818T0300Z/
Trinity-
458 PM PDT Mon Aug 17 2020

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...

* AFFECTED AREA...Fire weather zone 283.

* THUNDERSTORMS...Fast moving dry thunderstorms will pose a 
  threat for fire starts due to lightning.

* WINDS...Erratic, gusty outflow winds will be possible in and
  around thunderstorms. Winds outside of storms will be lighter,
  but west-northwest breezes will pick up this evening.

* IMPACTS...Higher potential for wildfire starts in proximity 
  to thunderstorms due to lightning. Any fires that develop may 
  spread rapidly due to the combination of dry fuels and low 
  humidity. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

&&

$$


http://weather.gov/eureka
465 
WWUS86 KEKA 180202
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
702 PM PDT Mon Aug 17 2020


CAZ283-180315-
/O.CAN.KEKA.FW.W.0006.000000T0000Z-200818T0300Z/
Trinity-
702 PM PDT Mon Aug 17 2020

...RED FLAG WARNING IS CANCELLED...

The National Weather Service in Eureka has cancelled the Red Flag
Warning. 

Any thunderstorms will remain east of the area through the rest of
the evening.

$$

CAZ264-276-277-180315-
/O.EXP.KEKA.FW.W.0006.000000T0000Z-200818T0200Z/
Lake County Portion of Lake/Napa/Sonoma RU-Interior Mendocino-
W Mendocino NF/E Mendocino Unit-
702 PM PDT Mon Aug 17 2020

...RED FLAG WARNING HAS EXPIRED...

Showers will quickly diminish through the rest of the evening.

$$


http://weather.gov/eureka

The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 17, 2:54 AM PDTSmall Craft AdvisoryEKA54 hr
Aug 17, 3:32 AM PDTHeat AdvisoryEKALake, Mendocino23 hr
Aug 17, 7:15 AM PDTSpecial Weather StatementEKALake30 min
Aug 17, 11:26 AM PDTSpecial Weather StatementEKALake49 min
Aug 17, 11:42 AM PDTSpecial Weather StatementEKALake33 min
Aug 17, 12:10 PM PDTSpecial Weather StatementEKAMendocino50 min
Aug 17, 12:58 PM PDTSpecial Weather StatementEKATrinity47 min
Aug 17, 1:46 PM PDTSpecial Weather StatementEKATrinity44 min
Aug 17, 2:41 PM PDTSpecial Weather StatementEKALake49 min
Aug 17, 3:33 PM PDTSpecial Weather StatementEKALake57 min
Aug 17, 4:33 PM PDTSpecial Weather StatementEKALake57 min

Nearby

Red Flag Warnings in California, 2020Every red flag warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.