Alert archive / California / Fire Weather Watches in 2021

Fire Weather Watch 3, NWS Eureka, CA

August 16, 2021

NWS Eureka, CA issued this fire weather watch at Aug 16, 2021, 4:07 AM PDT. It took effect at Aug 17, 2021, 11:00 PM PDT. It was in force for .

The area

The counties it named.

The facts

Issued
Aug 16, 2021, 4:07 AM PDT (11:07 UTC)
In effect from
Aug 17, 2021, 11:00 PM PDT
Expired
Aug 17, 2021, 3:51 AM PDT
In force
Issued by
NWS Eureka, CA

The text

As transmitted.

803 
WWUS86 KEKA 161107
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
407 AM PDT Mon Aug 16 2021

...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON DUE TO GUSTY NORTHEAST TO EAST WINDS AND 
DRIER RH VALUES...

.A large trough digging to our east mid-week is expected to bring
gusty northeast to east winds across upper elevations of Trinity
and northeastern Mendocino county, as well as most of Lake county,
late Tuesday night and Wednesday. These winds will be accompanied
by a drying trend, with poor RH recoveries expected both Tuesday 
and Wednesday night along upper slopes and ridges.

CAZ264-277-283-161915-
/O.NEW.KEKA.FW.A.0003.210818T0600Z-210819T0000Z/
Lake County Portion of Lake/Napa/Sonoma RU-
W Mendocino NF/E Mendocino Unit-Trinity-
407 AM PDT Mon Aug 16 2021

...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

The National Weather Service in Eureka has issued a Fire Weather
Watch, which is in effect from Tuesday evening through Wednesday
afternoon. 

* AFFECTED AREA...Fire weather zone 264. Elevations above 2500 ft
  in Fire weather zones 277 and 283. 

* WIND...North to Northeast winds 15 to 25 mph, with gusts to 35
  mph possible along exposed ridges late Tuesday night through
  Wednesday morning. Residual light NE to E winds are possible
  Wednesday night as well, although speeds are expected to
  significantly weaken Wednesday afternoon.
  

* HUMIDITY...Widespread afternoon humidities in the teens Tuesday
  will likely be followed by poor recoveries in the low 30's
  Tuesday night at elevations above 2500 ft in Trinity,
  northeastern Mendocino, and Lake county. Recoveries may continue
  to trend down for Wednesday night.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$


http://weather.gov/eureka
5 follow-up statements
313 
WWUS86 KEKA 161907
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
1207 PM PDT Mon Aug 16 2021

...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON DUE TO GUSTY NORTHEAST TO EAST WINDS AND
DRIER RH VALUES...

.A large trough digging to our east mid-week is expected to bring
gusty northeast to east winds across upper elevations of Trinity
and northeastern Mendocino county, as well as most of Lake
county, late Tuesday night and Wednesday. These winds will be
accompanied by a drying trend, with poor RH recoveries expected
both Tuesday and Wednesday night along upper slopes and ridges.

CAZ264-277-283-170315-
/O.CON.KEKA.FW.A.0003.210818T0600Z-210819T0000Z/
Lake County Portion of Lake/Napa/Sonoma RU-
W Mendocino NF/E Mendocino Unit-Trinity-
1207 PM PDT Mon Aug 16 2021

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY EVENING
THROUGH WEDNESDAY AFTERNOON...

* AFFECTED AREA...Fire weather zone 264.Fire weather zone 
  277.Fire weather zone 283. 

* WIND...North to Northeast winds 15 to 25 mph, with gusts to 
  35 mph possible along exposed ridges late Tuesday night 
  through Wednesday morning. Residual light NE to E winds are 
  possible Wednesday night as well, although speeds are 
  expected to significantly weaken Wednesday afternoon.

* HUMIDITY...Widespread afternoon humidities in the teens 
  Tuesdaywill likely be followed by poor recoveries in the low 
  30's Tuesday night at elevations above 2500 ft in Trinity, 
  northeastern Mendocino, and Lake county. Recoveries may 
  continue to trend down for Wednesday night. 

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$


http://weather.gov/eureka
685 
WWUS86 KEKA 162217
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
317 PM PDT Mon Aug 16 2021

...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON DUE TO GUSTY NORTHEAST TO EAST WINDS AND
DRIER RH VALUES...

.A large trough digging to our east mid-week is expected to bring
gusty northeast to east winds across upper elevations of Trinity,
Eastern Del Norte and northeastern Mendocino county, as well as 
most of Lake county, late Tuesday night and Wednesday. These winds
will be accompanied by a drying trend, with poor RH recoveries 
expected both Tuesday and Wednesday night along upper slopes and 
ridges.

CAZ283-170630-
/O.UPG.KEKA.FW.A.0003.210818T0600Z-210819T0000Z/
/O.NEW.KEKA.FW.W.0003.210817T2000Z-210818T1000Z/
Trinity-
317 PM PDT Mon Aug 16 2021

...RED FLAG WARNING IN EFFECT FROM 1 PM TUESDAY TO 3 AM PDT
WEDNESDAY ABOVE 2500 FEET...

The National Weather Service in Eureka has issued a Red Flag
Warning, which is in effect from 1 PM Tuesday to 3 AM PDT
Wednesday. The Fire Weather Watch is no longer in effect. 


* WIND...Widespread North and Northwest winds will continue on
  Tuesday afternoon. Winds 15 to 25 mph, with gusts to 30 mph
  possible along exposed ridges through Wednesday morning. Gusty
  winds continuing after the shift to NE to E winds are possible 
  Wednesday night as well, although speeds are expected to 
  significantly weaken Wednesday evening except along the fringes 
  of the zone.
  

* HUMIDITY...Widespread afternoon humidities in the teens
  Tuesday will likely be followed by poor recoveries in the low
  30's Tuesday night at elevations above 2500 ft. Minimum
  humidities around 10 are likely. Recoveries will continue to be
  poor Wednesday night. 

* IMPACTS...any fires that develop will likely spread rapidly. 
  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.

&&

$$

CAZ203-204-211-170630-
/O.NEW.KEKA.FW.W.0003.210817T2000Z-210818T2200Z/
Upper Smith-Lower Middle Klamath-Hoopa-
317 PM PDT Mon Aug 16 2021

...RED FLAG WARNING IN EFFECT FROM 1 PM TUESDAY TO 3 PM PDT
WEDNESDAY...

The National Weather Service in Eureka has issued a Red Flag
Warning, which is in effect from 1 PM Tuesday to 3 PM PDT
Wednesday. 

* AFFECTED AREA...Fire weather zone 203.Fire weather zone 
  204.Fire weather zone 211. 

* WIND...North to Northeast winds 15 to 25 mph, with gusts to 30
  mph possible along exposed ridges late Tuesday through Wednesday
  afternoon. Residual NE to E winds are possible Wednesday night
  as well, although speeds are expected to significantly weaken
  Wednesday night. 

* HUMIDITY...Widespread afternoon humidities in the teens Tuesday
  will likely be followed by poor recoveries in the 30's overnight
  Even drier conditions are expected on Wednesday with minimums as
  low as 10. Recoveries Wednesday night will continue to be poor.
 

* IMPACTS...any fires that develop will likely spread rapidly. 
  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.

&&

$$

CAZ264-277-170630-
/O.EXT.KEKA.FW.A.0003.210818T0600Z-210818T2200Z/
Lake County Portion of Lake/Napa/Sonoma RU-
W Mendocino NF/E Mendocino Unit-
317 PM PDT Mon Aug 16 2021

...FIRE WEATHER WATCH NOW IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON BELOW 500 FEET...

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

* WIND...North to Northeast winds 15 to 25 mph, with gusts to 
  35 mph possible along exposed ridges late Tuesday night 
  through Wednesday morning. Residual light NE to E winds are 
  possible Wednesday night as well, although speeds are 
  expected to significantly weaken Wednesday afternoon.

* HUMIDITY...Widespread afternoon humidities in the teens 
  Tuesday will likely be followed by poor recoveries in the low 
  30's Tuesday night at elevations above 2500 ft in Trinity, 
  northeastern Mendocino, and Lake county. Recoveries may 
  continue to trend down for Wednesday night.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$


http://weather.gov/eureka
478 
WWUS86 KEKA 170122
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
622 PM PDT Mon Aug 16 2021

...Low Humidity combined with Periods of Gusty Winds, Shifting 
from North and Northwest Tuesday afternoon to Northeast Tuesday 
night into Wednesday...

.An upper level trough passing by on Tuesday will bring enhanced
north to northwest afternoon breezes, combined with humidity
bottoming out in the teens. As this trough passes by and high
pressure builds to our north Tuesday night and Wednesday, winds
will veer to the northeast. While valley areas will be mainly
protected from these winds, gusty northeast winds will be found 
across exposed slopes and ridgetops in eastern Del Norte County, 
western Siskiyou, northeastern Mendocino County, as well as much 
of Lake County, late Tuesday night and Wednesday. These winds will
be accompanied by a drying trend, with poor RH recoveries 
expected both Tuesday and Wednesday night along upper slopes and 
ridges. Northeast to East winds will remain elevated Wednesday
night into early Thursday morning across the same ridgetop areas. 


CAZ203-204-211-170930-
/O.CON.KEKA.FW.W.0003.210817T2000Z-210818T2200Z/
Upper Smith-Lower Middle Klamath-Hoopa-
622 PM PDT Mon Aug 16 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TUESDAY TO 3 PM
PDT WEDNESDAY ABOVE 1500 FEET...

* AFFECTED AREA...Fire weather zones 203, 204, and 211 above 1500
  feet elevation. 

* WIND...North winds 10 to 20 mph Tuesday afternoon. Northeast
  winds developing Tuesday night 15 to 25 mph, with gusts to 30
  mph possible along exposed ridges through midday Wednesday.
  Northeast to east winds will remain locally gusty over 
  ridgetops Wednesday night as well. 

* HUMIDITY...Afternoon minimum humidity in the teens and low
  twenties Tuesday and Wednesday. RH recoveries Tuesday night 35
  to 45 percent across upper slopes and ridges, but 60 to 80
  percent in valleys. Recoveries Wednesday night will likely trend
  even lower. 

* IMPACTS...any fires that develop will likely spread rapidly. 
  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.

&&

$$

CAZ283-170930-
/O.CON.KEKA.FW.W.0003.210817T2000Z-210818T1000Z/
Trinity-
622 PM PDT Mon Aug 16 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TUESDAY TO 3 AM
PDT WEDNESDAY ABOVE 2500 FEET...

* AFFECTED AREA...Fire weather zone 283 above 2500 feet.

* WIND...North and Northwest winds 15 to 25 mph will pick up again
  Tuesday afternoon and evening. Gusts to 30 mph possible along
  exposed ridges. These winds will veer to the northeast Tuesday
  night, and remain elevated across ridges, while easing through
  valleys and lower slopes.  

* HUMIDITY...Widespread afternoon humidities in the teens Tuesday
  will likely be followed by poor recoveries in the low 30's
  Tuesday night over mountain slopes and ridgetops above 2500 ft.
  Minimum humidities in the low teens on Wednesday. Recoveries 
  will continue to be poor Wednesday night.

* IMPACTS...any fires that develop will likely spread rapidly. 
  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.

&&

$$

CAZ264-277-170930-
/O.CON.KEKA.FW.A.0003.210818T0600Z-210818T2200Z/
Lake County Portion of Lake/Napa/Sonoma RU-
W Mendocino NF/E Mendocino Unit-
622 PM PDT Mon Aug 16 2021

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY EVENING
THROUGH WEDNESDAY AFTERNOON ABOVE 1500 FEET...

* AFFECTED AREA...Fire weather zones 264 and 277 above 1500 feet.

* WIND...Northeast winds 15 to 25 mph, with gusts to 35 mph
  possible along exposed ridges late Tuesday night through
  Wednesday morning. Northeast winds will ease somewhat later 
  Wednesday, but may increase again Wednesday night. 

* HUMIDITY...Widespread afternoon humidities in the teens Tuesday
  will likely be followed by poor recoveries in the low 30's
  Tuesday night, especially over higher slopes and ridgetops. Poor
  RH recoveries will persist Wednesday night into Thursday
  morning. 

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$


http://weather.gov/eureka
180 
WWUS86 KEKA 170931
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
231 AM PDT Tue Aug 17 2021

...Low Humidity combined with Periods of Gusty Winds, Shifting
from North and Northwest Tuesday afternoon to Northeast Tuesday
night into Wednesday...

.An upper level trough passing by on Tuesday will bring enhanced
north to northwest afternoon breezes, combined with humidity
bottoming out in the teens. As this trough passes by and high
pressure builds to our north Tuesday night and Wednesday, winds
will veer to the northeast. While valley areas will be mainly
protected from these winds, gusty northeast winds will be found
across exposed slopes and ridgetops in eastern Del Norte County,
western Siskiyou, northeastern Mendocino County, as well as much
of Lake County, late Tuesday night and Wednesday. These winds
will be accompanied by a drying trend, with poor RH recoveries
expected both Tuesday and Wednesday night along upper slopes and
ridges. Northeast to East winds will remain elevated Wednesday
night into early Thursday morning across the same ridgetop areas.

CAZ203-204-211-171745-
/O.CON.KEKA.FW.W.0003.210817T2000Z-210818T2200Z/
Upper Smith-Lower Middle Klamath-Hoopa-
231 AM PDT Tue Aug 17 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
3 PM PDT WEDNESDAY...

* AFFECTED AREA...Fire weather zones 203, 204, and 211 above 
  1500 feet elevation. 

* WIND...North winds 10 to 20 mph Tuesday afternoon. Northeast 
  winds developing Tuesday night 15 to 25 mph, with gusts to 30 
  mph possible along exposed ridges through midday Wednesday. 
  Northeast to east winds will remain locally gusty over 
  ridgetops Wednesday night as well.

* HUMIDITY...Afternoon minimum humidity in the teens and low 
  twenties Tuesday and Wednesday. RH recoveries Tuesday night 
  35 to 45 percent across upper slopes and ridges, but 60 to 80 
  percent in valleys. Recoveries Wednesday night will likely 
  trend even lower. 

* IMPACTS...any fires that develop will likely spread rapidly. 
  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.

&&

$$

CAZ283-171745-
/O.CON.KEKA.FW.W.0003.210817T2000Z-210818T1000Z/
Trinity-
231 AM PDT Tue Aug 17 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
3 AM PDT WEDNESDAY ABOVE 2500 FEET...

* AFFECTED AREA...Fire weather zone 283 above 2500 feet.

* WIND...North and Northwest winds 15 to 25 mph will pick up
  again Tuesday afternoon and evening. Gusts to 30 mph possible 
  along exposed ridges. These winds will veer to the northeast 
  Tuesday night, and remain elevated across ridges, while 
  easing through valleys and lower slopes. 

* HUMIDITY...Widespread afternoon humidities in the teens 
  Tuesdaywill likely be followed by poor recoveries in the low 
  30's Tuesday night over mountain slopes and ridgetops above 
  2500 ft. Minimum humidities in the low teens on Wednesday. 
  Recoveries will continue to be poor Wednesday night.

* IMPACTS...any fires that develop will likely spread rapidly. 
  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.

&&

$$

CAZ264-277-171745-
/O.CON.KEKA.FW.A.0003.210818T0600Z-210818T2200Z/
Lake County Portion of Lake/Napa/Sonoma RU-
W Mendocino NF/E Mendocino Unit-
231 AM PDT Tue Aug 17 2021

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY AFTERNOON BELOW 500 FEET...

* AFFECTED AREA...Fire weather zones 264 and 277 above 1500 
  feet. 

* WIND...Northeast winds 15 to 25 mph, with gusts to 35 mph 
  possible along exposed ridges late Tuesday night through 
  Wednesday morning. Northeast winds will ease somewhat later 
  Wednesday, but may increase again Wednesday night.

* HUMIDITY...Widespread afternoon humidities in the teens 
  Tuesdaywill likely be followed by poor recoveries in the low 
  30's Tuesday night, especially over higher slopes and 
  ridgetops. Poor RH recoveries will persist Wednesday night 
  into Thursday morning.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$


http://weather.gov/eureka
548 
WWUS86 KEKA 171051
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
351 AM PDT Tue Aug 17 2021

...Low Humidity combined with Periods of Gusty Winds, Shifting
from North and Northwest this afternoon to Northeast tonight 
into Wednesday...

.As an upper level trough approaches, NW to N winds will increase
this afternoon and evening. This will combine with with low 
afternoon humidity in the teens and result in critical 
conditions, especially over exposed upper slopes and ridges over 
Trinity County northward.

Winds are forecast to shift to the northeast tonight and 
Wednesday, with continued low afternoon humidity and poor 
overnight recoveries outside of valleys. These winds will ease a 
bit on Wednesday over the ridges, but will spread into the
valleys. 

CAZ264-277-171900-
/O.UPG.KEKA.FW.A.0003.210818T0600Z-210818T2200Z/
/O.EXB.KEKA.FW.W.0003.210818T0600Z-210819T0300Z/
Lake County Portion of Lake/Napa/Sonoma RU-
W Mendocino NF/E Mendocino Unit-
351 AM PDT Tue Aug 17 2021

...RED FLAG WARNING IN EFFECT FROM 11 PM THIS EVENING TO 8 PM PDT
WEDNESDAY ABOVE 1500 FEET...

The National Weather Service in Eureka has issued a Red Flag
Warning, which is in effect from 11 PM this evening to 8 PM PDT
Wednesday. The Fire Weather Watch is no longer in effect. 

* WIND...Northeast winds 15 to 25 mph, with gusts to 35 mph
  possible along exposed ridges late tonight through Wednesday
  morning. Northeast winds will ease somewhat later Wednesday, but
  will expand across the valleys.  

* HUMIDITY...Widespread afternoon humidities in the teens today
  will be followed by poor recoveries in the low 30's tonight,
  especially over higher slopes and ridgetops. RH in the teens is
  expected again Wednesday afternoon.

* IMPACTS...any fires that develop will likely spread rapidly. 

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.

&&

$$

CAZ212-171900-
/O.EXB.KEKA.FW.W.0003.210817T2000Z-210819T0300Z/
Van Duzen/Mad River-
351 AM PDT Tue Aug 17 2021

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
PDT WEDNESDAY ABOVE 1500 FEET...

The National Weather Service in Eureka has issued a Red Flag
Warning, which is in effect from 1 PM this afternoon to 8 PM PDT
Wednesday. 

* AFFECTED AREA...The eastern portion of Fire weather zone 212.

* WIND...North winds 10 to 20 mph this afternoon. Northeast winds
  of 15 to 25 mph, with gusts to 30 mph are expected to develope
  tonight along exposed ridges. Wednesday afternoon winds will
 remain elevated.

* HUMIDITY...Afternoon minimum humidity in the teens to low
  thirties is expected today and Wednesday. RH recoveries tonight
  35 to 45 percent across upper slopes and ridges, but 60 to 80
  percent in valleys. 

* IMPACTS...any fires that develop will likely spread rapidly. 

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.

&&

$$

CAZ203-204-211-171900-
/O.EXT.KEKA.FW.W.0003.210817T2000Z-210819T0300Z/
Upper Smith-Lower Middle Klamath-Hoopa-
351 AM PDT Tue Aug 17 2021

...RED FLAG WARNING NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM PDT WEDNESDAY ABOVE 1500 FEET...

* AFFECTED AREA...Fire weather zone 203, 204 and 211.

* WIND...North winds 10 to 20 mph this afternoon. Northeast winds
  developing tonight 15 to 25 mph, with gusts to 30 mph possible
  along exposed ridges through midday Wednesday. Northerly winds
  will spread down into the valleys Wednesday afternoon.

* HUMIDITY...Afternoon minimum humidity in the teens and low
  twenties today and Wednesday. RH recoveries tonight 35 to 45
  percent across upper slopes and ridges, but 60 to 80 percent in
  valleys. 

* IMPACTS...any fires that develop will likely spread rapidly. 

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.

&&

$$

CAZ283-171900-
/O.EXT.KEKA.FW.W.0003.210817T2000Z-210819T0300Z/
Trinity-
351 AM PDT Tue Aug 17 2021

...RED FLAG WARNING NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM PDT WEDNESDAY ABOVE 2500 FEET...

* AFFECTED AREA...Fire weather zone 283.

* WIND...North and Northwest winds 15 to 25 mph will pick up again
  this afternoon and evening. Gusts to 30 mph possible along
  exposed ridges. These winds will veer to the northeast tonight,
  and remain elevated across ridges. Northerly winds will spread 
  down into the valleys Wednesday afternoon.

* HUMIDITY...Widespread afternoon humidities in the teens today
  will be followed by poor recoveries in the low 30's tonight over
  mountain slopes and ridgetops above 2500 ft. Minimum humidities
  in the low teens on Wednesday. 

* IMPACTS...any fires that develop will likely spread rapidly. 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 2:39 AM PDTGale WarningEKA5 days
Aug 16, 2:39 AM PDTHazardous Seas WatchEKA24 hr
Aug 16, 3:17 PM PDTRed Flag WarningEKA68 hr

Nearby

Fire Weather Watches in California, 2021Every fire weather watch 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.