Alert archive / California / Red Flag Warnings in 2021

Red Flag Warning 1, NWS Eureka, CA

June 23, 2021

NWS Eureka, CA issued this red flag warning at Jun 23, 2021, 7:55 PM PDT. It took effect at Jun 24, 2021, 12:00 PM PDT. It was in force for 10 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
Jun 23, 2021, 7:55 PM PDT (02:55 UTC)
In effect from
Jun 24, 2021, 12:00 PM PDT
Expired
Jun 24, 2021, 10:00 PM PDT
In force
10 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

634 
WWUS86 KEKA 240255
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
755 PM PDT Wed Jun 23 2021

...RED FLAG WARNING FOR PORTIONS OF NORTHWEST CALIFORNIA...

.An area of low pressure will bring the threat of thunderstorms
Thursday afternoon to far northern Trinity, extreme northeastern 
Humboldt, and southwestern Siskiyou counties. Storms will develop 
during the early afternoon and then move west near the Siskiyou- 
Trinity county line. Scattered thunderstorms are likely with 
numerous lightning strikes on dry fuels.

CAZ204-283-241100-
/O.NEW.KEKA.FW.W.0001.210624T1900Z-210625T0300Z/
Lower Middle Klamath-Trinity-
755 PM PDT Wed Jun 23 2021

...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM PDT THURSDAY...

The National Weather Service in Eureka has issued a Red Flag
Warning, which is in effect from noon to 8 PM PDT Thursday. 

* AFFECTED AREA...Portions of fire weather zones 204 and 283 in
  northern Trinity, extreme northeast Humboldt, and southwestern
  Siskiyou counties.

* THUNDERSTORMS...Scattered thunderstorms with numerous lightning
  strikes on dry fuels.

* OUTFLOW WINDS...Wind gusts to 40 mph possible with the stronger
  storms.

* IMPACTS...Any fires that develop may spread rapidly.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions are
either occurring now, or will shortly. Lightning strikes with
little or no precipitation combined with dry fuels create
conditions where many fire starts may occur in a short period of
time.

&&

$$


http://weather.gov/eureka
4 follow-up statements
964 
WWUS86 KEKA 241051
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
351 AM PDT Thu Jun 24 2021

...Scattered Thunderstorms expected over Portions of interior 
northwest California this afternoon and early this evening...

.An area of low pressure offshore will draw early season monsoonal
moisture northwestward from eastern California and Nevada today.
This pattern will likely result in scattered thunderstorms
developing this afternoon, especially just east of our area in
Siskiyou and Shasta County. Thunderstorms are expected to track
westward and expand across portions of northern Trinity, possibly
reaching northeast Humboldt and southwest Siskiyou County. 
Isolated thunderstorms are possible near and south of the Highway 
299 and 36 corridors in Trinity County, but expect the threat of 
lightning to be limited compared to aforementioned areas to the 
north. All of this activity will diminish toward sunset and 
dissipate tonight. 


CAZ204-283-241900-
/O.CON.KEKA.FW.W.0001.210624T1900Z-210625T0300Z/
Lower Middle Klamath-Trinity-
351 AM PDT Thu Jun 24 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM PDT
THIS EVENING...

* AFFECTED AREA...Portions of fire weather zones 204 and 283 in
  northern Trinity, extreme northeast Humboldt, and southwestern
  Siskiyou counties.

* THUNDERSTORMS...Scattered thunderstorms with numerous 
  lightning strikes on dry fuels. 

* OUTFLOW WINDS...Erratic, gusty winds of 30 to 40 mph will be
  possible in the vicinity of any stronger storm cells.  

* IMPACTS...Lightning and dry fuels may result in new fire starts. Any
  fires that develop may spread rapidly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. Lightning strikes with
little or no precipitation combined with dry fuels create
conditions where many fire starts may occur in a short period of
time.

&&

$$


http://weather.gov/eureka
844 
WWUS86 KEKA 241841
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
1141 AM PDT Thu Jun 24 2021

...Scattered thunderstorms expected over portions of interior 
northwest California this afternoon and early this evening...

.An area of low pressure offshore will draw early season
monsoonal moisture northwestward from eastern California and
Nevada today. This pattern will likely result in isolated to 
scattered thunderstorms developing this afternoon, especially just 
east of our area in Siskiyou and Shasta counties. Thunderstorms are 
expected to track westward across portions of northern Trinity, 
possibly reaching northeast Humboldt and southwest Siskiyou County. 
Isolated thunderstorms are possible near and south of the Highway 299
and 36 corridors in Trinity County. Thunderstorm activity will 
diminish toward sunset and dissipate tonight.

CAZ204-283-250300-
/O.CON.KEKA.FW.W.0001.210624T1900Z-210625T0300Z/
Lower Middle Klamath-Trinity-
1141 AM PDT Thu Jun 24 2021

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

* AFFECTED AREA...Portions of fire weather zones 204 and 283 in 
  northern Trinity, extreme northeast Humboldt, and southwestern 
  Siskiyou counties. 

* THUNDERSTORMS...Scattered thunderstorms with lightning strikes on
  dry fuels.

* OUTFLOW WINDS...Erratic, gusty winds of 30 to 40 mph will be 
  possible in the vicinity of any stronger storm cells.

* IMPACTS...Lightning and dry fuels may result in new fire
  starts. Any fires that develop may spread rapidly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. Lightning strikes with
little or no precipitation combined with dry fuels create
conditions where many fire starts may occur in a short period of
time.

$$

http://weather.gov/eureka
516 
WWUS86 KEKA 250244
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
744 PM PDT Thu Jun 24 2021


CAZ204-283-250500-
/O.EXT.KEKA.FW.W.0001.000000T0000Z-210625T0500Z/
Lower Middle Klamath-Trinity-
744 PM PDT Thu Jun 24 2021

...RED FLAG WARNING NOW IN EFFECT UNTIL 10 PM PDT THIS EVENING...

* AFFECTED AREA...Fire weather zone 204 and 283.

* THUNDERSTORMS...Scattered thunderstorms with lightning strikes
  on dry fuels. 

* OUTFLOW WINDS...Erratic, gusty winds of 30 to 40 mph will be 
  possible in the vicinity of any stronger storm cells.

* IMPACTS...Lightning and dry fuels may result in new fire 
  starts. Any fires that develop may spread rapidly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. Lightning strikes with
little or no precipitation combined with dry fuels create
conditions where many fire starts may occur in a short period of
time.

$$


http://weather.gov/eureka
521 
WWUS86 KEKA 250432
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
932 PM PDT Thu Jun 24 2021



CAZ204-283-250545-
/O.EXP.KEKA.FW.W.0001.000000T0000Z-210625T0500Z/
Lower Middle Klamath-Trinity-
932 PM PDT Thu Jun 24 2021

...RED FLAG WARNING WILL EXPIRE AT 10 PM PDT THIS EVENING...



$$


http://weather.gov/eureka

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 5:07 PM PDTSpecial Weather StatementEKA23 min
Jun 24, 1:56 PM PDTExcessive Heat WarningEKALake, Mendocino, Trinity5 days
Jun 24, 1:56 PM PDTHeat AdvisoryEKAHumboldt, Lake, Mendocino, Trinity5 days
Jun 24, 2:21 PM PDTCoastal Flood AdvisoryEKAHumboldt12 hr

Nearby

Red Flag Warnings in California, 2021Every red flag warning in 2021

Sources

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