Alert archive / California / Red Flag Warnings in 2023

Red Flag Warning 8, NWS Eureka, CA

August 29, 2023

NWS Eureka, CA issued this red flag warning at Aug 29, 2023, 9:03 AM PDT. It took effect at Aug 29, 2023, 11:00 PM PDT. It was in force for 21 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 29, 2023, 9:03 AM PDT (16:03 UTC)
In effect from
Aug 29, 2023, 11:00 PM PDT
Expired
Aug 30, 2023, 8:00 PM PDT
In force
21 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

005 
WWUS86 KEKA 291603
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
903 AM PDT Tue Aug 29 2023

...STRONG NORTH WINDS AND LOW RELATIVE HUMIDITY VALUES WILL YIELD
CRITICAL FIRE WEATHER CONDITIONS ACROSS EASTERN LAKE COUNTY DURING
WEDNESDAY...

.North winds gusting from 25 to 35 mph across exposed ridges and
terrain will develop across eastern Lake County during Wednesday
morning. Winds will weaken slightly going into Wednesday
afternoon, but relative humidity values will fall into the teens
during the warmest hours of the day. The end result will be a
critical fire weather event occurring across eastern Lake County
from late Tuesday evening through early Wednesday evening.

CAZ264-300015-
/O.UPG.KEKA.FW.A.0001.230830T0800Z-230831T0600Z/
/O.NEW.KEKA.FW.W.0008.230830T0600Z-230831T0300Z/
Lake County Portion of Lake/Napa/Sonoma RU-
903 AM PDT Tue Aug 29 2023

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

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 The Fire Weather Watch is no longer in effect.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...North winds gusting from 25 to 35 mph across exposed
  ridges and terrain. Strongest winds Wednesday morning.

* HUMIDITY...Relative humidity values falling into the teens
  during Wednesday afternoon.

* IMPACTS...Any fires that develop will 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.

&&

$$

CAZ277-300015-
/O.NEW.KEKA.FW.W.0008.230830T0600Z-230831T0300Z/
W Mendocino NF/E Mendocino Unit-
903 AM PDT Tue Aug 29 2023

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

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...North winds gusting from 25 to 35 mph across exposed
  ridges and terrain. Strongest winds Wednesday morning.

* HUMIDITY...Relative humidity values falling into the teens
  during Wednesday afternoon.

* IMPACTS...Any fires that develop will 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
5 follow-up statements
986 
WWUS86 KEKA 292110
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
210 PM PDT Tue Aug 29 2023

...STRONG NORTH WINDS AND LOW RELATIVE HUMIDITY VALUES WILL YIELD
CRITICAL FIRE WEATHER CONDITIONS ACROSS EASTERN LAKE COUNTY
DURING WEDNESDAY...

.North winds gusting from 25 to 35 mph across exposed ridges and
terrain will develop across eastern Lake County during Wednesday
morning. Winds will weaken slightly going into Wednesday
afternoon, but relative humidity values will fall into the teens
during the warmest hours of the day. The end result will be a
critical fire weather event occurring across eastern Lake County
from late Tuesday evening through early Wednesday evening.

CAZ264-277-300515-
/O.CON.KEKA.FW.W.0008.230830T0600Z-230831T0300Z/
Lake County Portion of Lake/Napa/Sonoma RU-
W Mendocino NF/E Mendocino Unit-
210 PM PDT Tue Aug 29 2023

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
8 PM PDT WEDNESDAY...

* WIND...North winds gusting from 25 to 35 mph across exposed 
  ridges and terrain. Strongest winds Wednesday morning. 

* HUMIDITY...Relative humidity values falling into the teens 
  during Wednesday afternoon.

* IMPACTS...Any fires that develop will 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
053 
WWUS86 KEKA 300452
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
952 PM PDT Tue Aug 29 2023

...STRONG NORTH WINDS AND LOW RELATIVE HUMIDITY VALUES WILL YIELD
CRITICAL FIRE WEATHER CONDITIONS ACROSS EASTERN LAKE COUNTY
DURING WEDNESDAY...

.North winds gusting from 25 to 35 mph across exposed ridges and
terrain will develop across eastern Lake County during Wednesday
morning. Winds will weaken slightly going into Wednesday
afternoon, but relative humidity values will fall into the teens
during the warmest hours of the day. The end result will be a
critical fire weather event occurring across eastern Lake County
from late Tuesday evening through early Wednesday evening.

CAZ264-277-301300-
/O.CON.KEKA.FW.W.0008.230830T0600Z-230831T0300Z/
Lake County Portion of Lake/Napa/Sonoma RU-
W Mendocino NF/E Mendocino Unit-
952 PM PDT Tue Aug 29 2023

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT WEDNESDAY...

* WIND...North winds gusting from 25 to 35 mph across exposed 
  ridges and terrain. Strongest winds Wednesday morning. 

* HUMIDITY...Relative humidity values falling into the teens 
  during Wednesday afternoon.

* IMPACTS...Any fires that develop will 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
597 
WWUS86 KEKA 301201
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
501 AM PDT Wed Aug 30 2023

...STRONG NORTH WINDS AND LOW RELATIVE HUMIDITY VALUES WILL YIELD
CRITICAL FIRE WEATHER CONDITIONS ACROSS EASTERN LAKE COUNTY
TODAY...

.North winds gusting to 35 mph across exposed ridges and terrain 
will continue across eastern Lake County today. Relative humidity
values will fall into the teens during the warmest hours of the 
day.

CAZ264-277-310300-
/O.CON.KEKA.FW.W.0008.000000T0000Z-230831T0300Z/
Lake County Portion of Lake/Napa/Sonoma RU-
W Mendocino NF/E Mendocino Unit-
501 AM PDT Wed Aug 30 2023

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

* WIND...North winds gusting to 35 mph across exposed ridges and
  upper slopes. Strongest winds are expected this morning. 

* HUMIDITY...Relative humidity values falling into the teens by 
  afternoon.

* IMPACTS...Any fires that develop will 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
097 
WWUS86 KEKA 302113
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
213 PM PDT Wed Aug 30 2023


CAZ264-277-310300-
/O.CON.KEKA.FW.W.0008.000000T0000Z-230831T0300Z/
Lake County Portion of Lake/Napa/Sonoma RU-
W Mendocino NF/E Mendocino Unit-
213 PM PDT Wed Aug 30 2023

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

* WIND...North winds gusting to 30 mph across exposed ridges and
  upper slopes.

* HUMIDITY...Relative humidity values in the teens

* IMPACTS...Any fires that develop will 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
380 
WWUS86 KEKA 310258
RFWEKA

Urgent - Fire Weather Message
National Weather Service Eureka CA
758 PM PDT Wed Aug 30 2023

CAZ264-277-310400-
/O.EXP.KEKA.FW.W.0008.000000T0000Z-230831T0300Z/
Lake County Portion of Lake/Napa/Sonoma RU-
W Mendocino NF/E Mendocino Unit-
758 PM PDT Wed Aug 30 2023

...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING...

Weakening winds and rising RHs have improved conditions in 
southern Lake County this evening.

$$


http://weather.gov/eureka

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 8:54 AM PDTGale WatchEKA18 hr

Nearby

Red Flag Warnings in California, 2023Every red flag warning in 2023

Sources

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