Alert archive / Alaska / Red Flag Warnings in 2007

Red Flag Warning 3, NWS Fairbanks, AK

April 19, 2007

NWS Fairbanks, AK issued this red flag warning at Apr 19, 2007, 2:12 AM AKDT. It took effect at Apr 19, 2007, 10:00 AM AKDT. It was in force for 36 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
Apr 19, 2007, 2:12 AM AKDT (10:12 UTC)
In effect from
Apr 19, 2007, 10:00 AM AKDT
Expired
Apr 20, 2007, 9:46 PM AKDT
In force
36 hr
Issued by
NWS Fairbanks, AK

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWAK63 PAFG 191512
RFWAFG

RED FLAG WARNING
NATIONAL WEATHER SERVICE FAIRBANKS AK
712 AM ADT THU APR 19 2007

...RED FLAG WARNING IN EFFECT UNTIL 10 PM ADT FRIDAY FOR STRONG
   WIND FOR A PORTION OF THE CENTRAL INTERIOR...

AKZ223-192315-
/X.NEW.PAFG.FW.W.0003.070419T1800Z-070421T0600Z/
DELTANA AND TANANA FLATS-
712 AM ADT THU APR 19 2007

...RED FLAG WARNING IN EFFECT UNTIL 10 PM ADT FRIDAY FOR 
   STRONG WIND...

THE NATIONAL WEATHER SERVICE IN FAIRBANKS HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 10 PM ADT FRIDAY. 

DISCUSSION...GUSTY SOUTH WINDS OF 20 TO 35 MPH WITH LOCAL GUSTS
TO 45 MPH WILL OCCUR AGAIN TODAY. RELATIVE HUMIDITIES WILL ALSO
DROP TO NEAR 20 PERCENT THIS AFTERNOON. WINDS WILL DIMINISH
TONIGHT...AND RELATIVE HUMIDITIES INCREASE...BUT GUSTY WINDS
AND RELATIVE HUMIDITIES BELOW 30 PERCENT WILL OCCUR AGAIN FRIDAY.
HENCE THE RED FLAG WARNING WILL REMAIN IN EFFECT THROUGH FRIDAY.

A RED FLAG WARNING MEANS THAT CONDITIONS ARE OCCURRING OR WILL
OCCUR WHICH COULD LEAD TO THE DEVELOPMENT OF LARGE AND DANGEROUS
FIRES. IT IS DIRECTED TOWARD FIRE AGENCIES...AND THROUGH THEM...
TO THE PUBLIC.

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.

$$

MAR/KS APR 07
6 follow-up statements
000 
WWAK63 PAFG 192315
RFWAFG

RED FLAG WARNING
NATIONAL WEATHER SERVICE FAIRBANKS AK
315 PM ADT THU APR 19 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT FRIDAY
   FOR STRONG WIND FOR A PORTION OF THE CENTRAL INTERIOR...

AKZ223-200715-
/X.CON.PAFG.FW.W.0003.000000T0000Z-070421T0600Z/
DELTANA AND TANANA FLATS-
315 PM ADT THU APR 19 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT FRIDAY
   FOR STRONG WIND...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT FRIDAY. 

DISCUSSION...GUSTY SOUTH WINDS OF 20 TO 35 MPH WITH LOCAL GUSTS
TO 45 MPH WILL CONTINUE INTO THIS EVENING. RELATIVE HUMIDITIES 
WILL ALSO REMAIN BELOW 30 PERCENT INTO THIS EVENING. WINDS WILL
DIMINISH LATER TONIGHT...AND RELATIVE HUMIDITIES INCREASE...BUT
GUSTY WINDS AND RELATIVE HUMIDITIES BELOW 30 PERCENT WILL OCCUR
AGAIN FRIDAY. HENCE THE RED FLAG WARNING WILL REMAIN IN EFFECT
THROUGH FRIDAY.

A RED FLAG WARNING MEANS THAT CONDITIONS ARE OCCURRING OR WILL
OCCUR WHICH COULD LEAD TO THE DEVELOPMENT OF LARGE AND DANGEROUS
FIRES. IT IS DIRECTED TOWARD FIRE AGENCIES...AND THROUGH THEM...
TO THE PUBLIC.

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.

$$

MAR APR 07
000 
WWAK63 PAFG 200542
RFWAFG

RED FLAG WARNING
NATIONAL WEATHER SERVICE FAIRBANKS AK
942 PM ADT THU APR 19 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT FRIDAY   
FOR STRONG WIND FOR A PORTION OF THE CENTRAL INTERIOR...

AKZ223-201700-
/X.CON.PAFG.FW.W.0003.000000T0000Z-070421T0600Z/
DELTANA AND TANANA FLATS-
942 PM ADT THU APR 19 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT FRIDAY   
FOR STRONG WIND...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT FRIDAY. 

DISCUSSION...GUSTY SOUTH WINDS ARE DIMINISHING AND HUMIDITIES
INCREASING. HOWEVER...GUSTY WINDS AND RELATIVE HUMIDITIES 
BELOW 30 PERCENT WILL OCCUR AGAIN FRIDAY. HENCE THE RED FLAG
WARNING WILL REMAIN IN EFFECT THROUGH FRIDAY.

A RED FLAG WARNING MEANS THAT CONDITIONS ARE OCCURRING OR WILL
OCCUR WHICH COULD LEAD TO THE DEVELOPMENT OF LARGE AND DANGEROUS
FIRES. IT IS DIRECTED TOWARD FIRE AGENCIES...AND THROUGH THEM...
TO THE PUBLIC.

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.

$$
RT APR 07
000 
WWAK63 PAFG 201531
RFWAFG

RED FLAG WARNING
NATIONAL WEATHER SERVICE FAIRBANKS AK
731 AM ADT FRI APR 20 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT THIS 
   EVENING FOR STRONG WIND FOR A PORTION OF THE CENTRAL INTERIOR...

AKZ223-202345-
/X.CON.PAFG.FW.W.0003.000000T0000Z-070421T0600Z/
DELTANA AND TANANA FLATS-
731 AM ADT FRI APR 20 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT THIS
EVENING FOR STRONG WIND...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT THIS
EVENING. 

DISCUSSION...GUSTY SOUTH WINDS OF 20 TO 35 MPH WITH LOCAL GUSTS
OF 40 TO 50 MPH WILL CONTINUE TODAY. RELATIVE HUMIDITIES ARE
ALREADY BELOW 30 PERCENT AND WILL REMAIN SO WELL INTO THIS EVENING.
WINDS ARE EXPECTED TO DIMINISH TONIGHT...AND RELATIVE HUMIDITIES
TO INCREASE ABOVE 30 PERCENT AFTER 10 PM.

A RED FLAG WARNING MEANS THAT CONDITIONS ARE OCCURRING OR WILL
OCCUR WHICH COULD LEAD TO THE DEVELOPMENT OF LARGE AND DANGEROUS
FIRES. IT IS DIRECTED TOWARD FIRE AGENCIES...AND THROUGH THEM...
TO THE PUBLIC.

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.

$$
000 
WWAK63 PAFG 202303
RFWAFG

RED FLAG WARNING
NATIONAL WEATHER SERVICE FAIRBANKS AK
303 PM ADT FRI APR 20 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT THIS
   EVENING FOR STRONG WIND FOR A PORTION OF THE CENTRAL
   INTERIOR...

AKZ223-210600-
/X.CON.PAFG.FW.W.0003.000000T0000Z-070421T0600Z/
DELTANA AND TANANA FLATS-
303 PM ADT FRI APR 20 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT THIS
EVENING FOR STRONG WIND AND LOW HUMIDITY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT THIS
EVENING. 

DISCUSSION...GUSTY SOUTH WINDS OF 20 TO 35 MPH WILL CONTINUE
INTO THIS EVENING. EXTREMELY DRY AIR HAS ALSO MIXED DOWN FROM ALOFT.
RELATIVE HUMIDITIES ARE WELL BELOW 15 PERCENT AND WILL REMAIN SO
INTO THIS EVENING. WINDS WILL DIMINISH TONIGHT...AND RELATIVE
HUMIDITIES WILL INCREASE ABOVE 15 PERCENT LATER THIS EVENING.
RELATIVE HUMIDITIES WILL INCREASE TO ABOVE 30 PERCENT AFTER
MIDNIGHT AS WELL. 

A RED FLAG WARNING MEANS THAT CONDITIONS ARE OCCURRING OR WILL
OCCUR WHICH COULD LEAD TO THE DEVELOPMENT OF LARGE AND DANGEROUS
FIRES. IT IS DIRECTED TOWARD FIRE AGENCIES...AND THROUGH THEM...
TO THE PUBLIC.

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.

$$
000 
WWAK63 PAFG 202319 CCA
RFWAFG

RED FLAG WARNING...CORRECTED
NATIONAL WEATHER SERVICE FAIRBANKS AK
319 PM ADT FRI APR 20 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT THIS
   EVENING FOR STRONG WIND AND LOW HUMIDITY FOR A PORTION OF THE
   CENTRAL INTERIOR...

AKZ223-210600-
/X.CON.PAFG.FW.W.0003.000000T0000Z-070421T0600Z/
DELTANA AND TANANA FLATS-
319 PM ADT FRI APR 20 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT THIS
EVENING FOR STRONG WIND AND LOW HUMIDITY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM ADT THIS
EVENING. 

DISCUSSION...GUSTY SOUTH WINDS OF 20 TO 35 MPH WILL CONTINUE
INTO THIS EVENING. EXTREMELY DRY AIR HAS ALSO MIXED DOWN FROM ALOFT.
RELATIVE HUMIDITIES ARE WELL BELOW 15 PERCENT AND WILL REMAIN SO
INTO THIS EVENING. WINDS WILL DIMINISH TONIGHT...AND RELATIVE
HUMIDITIES WILL INCREASE ABOVE 15 PERCENT LATER THIS EVENING.
RELATIVE HUMIDITIES WILL INCREASE TO ABOVE 30 PERCENT AFTER
MIDNIGHT AS WELL. 

A RED FLAG WARNING MEANS THAT CONDITIONS ARE OCCURRING OR WILL
OCCUR WHICH COULD LEAD TO THE DEVELOPMENT OF LARGE AND DANGEROUS
FIRES. IT IS DIRECTED TOWARD FIRE AGENCIES...AND THROUGH THEM...
TO THE PUBLIC.

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.

$$
000 
WWAK63 PAFG 210546
RFWAFG

RED FLAG WARNING
NATIONAL WEATHER SERVICE FAIRBANKS AK
946 PM ADT FRI APR 20 2007

...RED FLAG WARNING IS CANCELED FOR A PORTION OF THE CENTRAL
INTERIOR...

AKZ223-210700-
/X.CAN.PAFG.FW.W.0003.000000T0000Z-070421T0600Z/
DELTANA AND TANANA FLATS-
946 PM ADT FRI APR 20 2007

...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN FAIRBANKS HAS CANCELED THE RED
FLAG WARNING. 

THE BRISK SOUTH WINDS IN THE DELTANA AND TANANA FLATS HAVE
DIMINISHED. THE HUMIDITY WILL RECOVER TO 20 PERCENT BY MIDNIGHT
AND WILL RISE TO 30 PERCENT BY 2 AM.

$$

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Fairbanks, AK wrote its last area forecast discussion before this red flag warning went out at Apr 18, 9:43 PM AKDT, 4 hours 29 minutes earlier.

Area forecast discussion, Apr 18, 9:43 PM AKDT, 4 hours 29 minutes before
NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
243 AM ADT THU APR 19 2007

.DISCUSSION...
MODELS SIMILAR THROUGH FIRST 48 HOURS. GFS SEEMS TO HAVE HAD A
BETTER HANDLE ON THIS MOST RECENT LOW...ALTHOUGH ALL THE MODELS
WERE WAY OFF IN TERMS OF PRECIPITATION AMOUNTS.

LOW IS CURRENTLY NEAR WRANGLE ISLAND AND CONTINUING TO MOVE
NORTHWARD. COMPLEX FRONTAL BOUNDARY FROM LOW HAS NOW DEVELOPED
INTO A CLEAR ARCTIC BOUNDARY AS IT HAS WRAPPED THE ARCTIC AIR BACK
INTO THE WEST COAST FROM BEHIND. STRONG SOUTHERLY FEED WILL
CONTINUE OVER THE WEST COAST AND JUST INLAND TILL FRIDAY NIGHT.
THIS MEANS OCCASIONAL SNOW SHOWERS OVER THE AREA WITH MAYBE A FEW
AREAS PICKING UP LIKE 1 TO 3 INCHES...PARTICULARLY IN THE
ENHANCED AREAS THAT SPORT OROGRAPHIC LIFT..

SURFACE WINDS SHOULD COME BACK DOWN OVER THE ARCTIC COAST AS THE
SURFACE LOW CONTINUES TO LIFT NORTHWARD AND THE INVERTED TROUGH
FROM THE NEXT LOW POKES UP TO THE ARCTIC COAST BY 12Z FRIDAY. THIS
WILL CONTINUE THE SOUTHERLY FLOW OF MOISTURE INTO THE WESTERN
ALASKA BUT PROBABLY ONLY THE HIGHER ELEVATIONS WILL BENEFIT FROM
THIS SCENARIO

CENTRAL INTERIOR WINDS WILL BE MOSTLY FROM THE EAST. CATABATIC
WINDS WILL CONTINUE OVER THE CENTRAL AND AND EASTERN INTERIOR
TODAY WHICH WILL CONTINUE ENHANCE THE SURFACE TEMPERATURES A
LITTLE. AS THE NEXT SURFACE LOW MOVES INTO THE GULF OF ALASKA BY
SUNDAY...THE GRADIENT WILL BE SIGNIFICANT ENOUGH TO STIR UP SOME
DECENT EASTERLY WINDS PARTICULARLY OVER HIGHER TERRAIN.

COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NONE

&&

.FIRE WEATHER...LOW RH VALUES WILL BE SEEN OVER A GREAT PORTION OF
THE INTERIOR DUE TO CATABATIC WINDS OVER THE ALASKA RANGE BUT THE
SURFACE WINDS SHOULD NOT BE STRONG ENOUGH TO MEET RED FLAG
CRITERIA.

&&

.HYDROLOGY...NONE.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
BRISK WIND ADVISORY FOR PKZ220-PKZ225-PKZ230-PKZ235-PKZ240-
PKZ245.
&&

CF APR 07

The office that day

Everything else NWS Fairbanks, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 19, 8:45 AM AKDTBrisk Wind AdvisoryAFG37 hr
Apr 19, 1:49 PM AKDTFlood WatchAFG3 days

Nearby

Red Flag Warnings in Alaska, 2007Every red flag warning in 2007

Sources

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