Alert archive / Alaska / Storm Warnings in 2010

Storm Warning 4, NWS Fairbanks, AK

September 25, 2010

NWS Fairbanks, AK issued this storm warning at Sep 25, 2010, 2:47 AM AKDT. It was in force for 11 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
Sep 25, 2010, 2:47 AM AKDT (10:47 UTC)
Expired
Sep 25, 2010, 2:12 PM AKDT
In force
11 hr
Issued by
NWS Fairbanks, AK

The text

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

861 
FZAK69 PAFG 251047
OFFAFG

EXPERIMENTAL OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE FAIRBANKS AK
247 AM AKDT SAT SEP 25 2010

OFFSHORE WATERS FORECAST FOR THE US ARCTIC WATERS

SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF
THE COMBINED WIND WAVE AND SWELL HEIGHT. INDIVIDUAL WAVES MAY BE
TWICE AS HIGH.

PKZ599-260200-
247 AM AKDT SAT SEP 25 2010

.SYNOPSIS FOR ARCTIC WATERS...
A 989 MB LOW 250 NM NORTH OF BARROW WILL MOVE EAST TODAY AND THEN
BEGIN TO MOVE BACK TO THE NORTH TONIGHT. LITTLE CHANGE IN THE
DEPTH OF THE LOW IS EXPECTED THROUGH SUNDAY. THE LOW IS EXPECTED
TO BE 350 NM NORTH OF PRUDHOE BAY BY 4 AM AKDT SUNDAY. A RIDGE OF
HIGH PRESSURE WILL GRADUALLY BUILD OVER EASTERN RUSSIA THROUGH
TONIGHT. AN AREA OF STORM FORCE WINDS IS EXPECTED TODAY ALONG THE
BACK SIDE OF THE LOW.

$$

PKZ500-260200-
WESTERN US ARCTIC OFFSHORE-
247 AM AKDT SAT SEP 25 2010

...GALE WARNING IN EFFECT THROUGH LATE THIS AFTERNOON...

.TODAY...NW WINDS 35 KT. SEAS 14 FT. SNOW SHOWERS. FREEZING SPRAY.
.TONIGHT...NW WINDS 35 KT DIMINISHING TO 25 KT AFTER MIDNIGHT.
SEAS 14 FT SUBSIDING TO 10 FT. SNOW SHOWERS. FREEZING SPRAY.
.SUN...NW WINDS 25 KT. SEAS 10 FT. SNOW SHOWERS. FREEZING SPRAY.
.SUN NIGHT...NW WINDS 25 KT. SEAS 9 FT. FREEZING SPRAY. 
.MON...NW WINDS 20 KT. SEAS 7 FT. 
.TUE...W WINDS 20 KT. SEAS 8 FT. 
.WED...NW WINDS 20 KT. SEAS 10 FT.  

$$

PKZ505-260200-
CENTRAL US ARCTIC OFFSHORE-
247 AM AKDT SAT SEP 25 2010

...STORM WARNING IN EFFECT THROUGH LATE THIS AFTERNOON...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH LATE THIS
AFTERNOON...
...GALE WARNING IN EFFECT FROM LATE THIS AFTERNOON THROUGH EARLY
SUNDAY MORNING...

.TODAY...NW WINDS 50 KT. SEAS 17 FT. SNOW SHOWERS. HEAVY FREEZING
SPRAY.
.TONIGHT...NW WINDS DIMINISHING TO 35 KT. SEAS 15 FT. SNOW
SHOWERS. FREEZING SPRAY.
.SUN...NW WINDS 30 KT. SEAS 13 FT. SNOW SHOWERS. FREEZING SPRAY.
.SUN NIGHT...NW WINDS 20 KT. SEAS 9 FT. SNOW SHOWERS. FREEZING
SPRAY.
.MON...W WINDS 20 KT. SEAS 7 FT. 
.TUE...W WINDS 20 KT. SEAS 7 FT. 
.WED...W WINDS 20 KT. SEAS 7 FT.

$$

PKZ510-260200-
EASTERN US ARCTIC OFFSHORE-
247 AM AKDT SAT SEP 25 2010

.TODAY...W WINDS 30 KT. SEAS 8 FT BUILDING TO 13 FT. SNOW SHOWERS. 
FREEZING SPRAY.
.TONIGHT...W WINDS 30 KT. SEAS 14 FT. SNOW SHOWERS. FREEZING
SPRAY.
.SUN...W WINDS 30 KT. SEAS 13 FT. SNOW SHOWERS. FREEZING SPRAY. 
.SUN NIGHT...W WINDS 25 KT. SEAS 9 FT. FREEZING SPRAY.
.MON...W WINDS 25 KT. SEAS 7 FT. 
.TUE...SW WINDS 20 KT. SEAS 6 FT. 
.WED...S WINDS 25 KT. SEAS 7 FT.  

$$

MKK/CB SEP 10
1 follow-up statement
387 
FZAK69 PAFG 252212
OFFAFG

EXPERIMENTAL OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE FAIRBANKS AK
212 PM AKDT SAT SEP 25 2010

OFFSHORE WATERS FORECAST FOR THE US ARCTIC WATERS

SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF
THE COMBINED WIND WAVE AND SWELL HEIGHT. INDIVIDUAL WAVES MAY BE
TWICE AS HIGH.

PKZ599-261315-
212 PM AKDT SAT SEP 25 2010

.SYNOPSIS FOR ARCTIC WATERS...
A 992 MB LOW 350 NM NORTHEAST OF BARROW WILL REMAIN NEARLY
STATIONARY THROUGH TUE AND SLOWLY WEAKEN.

$$

PKZ500-261315-
WESTERN US ARCTIC OFFSHORE-
212 PM AKDT SAT SEP 25 2010

.TONIGHT...NW WINDS 30 KT. SEAS 14 FT. FREEZING SPRAY.
.SUN...NW WINDS 25 KT. SEAS 10 FT. FREEZING SPRAY.
.SUN NIGHT...NW WINDS 25 KT. SEAS 9 FT. FREEZING SPRAY. 
.MON...NW WINDS 20 KT. SEAS 7 FT. FREEZING SPRAY. 
.MON NIGHT...NW WINDS 20 KT. SEAS 6 FT. FREEZING SPRAY. 
.TUE...NW WINDS 20 KT. SEAS 8 FT. 
.WED...NW WINDS 20 KT. SEAS 10 FT. 
.THU...W WINDS 20 KT. SEAS 7 FT.  

$$

PKZ505-261315-
CENTRAL US ARCTIC OFFSHORE-
212 PM AKDT SAT SEP 25 2010

...GALE WARNING IN EFFECT THROUGH EARLY SUNDAY MORNING...

.TONIGHT...NW WINDS 35 KT. SEAS 15 FT. HEAVY FREEZING SPRAY. 
.SUN...NW WINDS 30 KT. SEAS 12 FT. HEAVY FREEZING SPRAY. 
.SUN NIGHT...NW WINDS 25 KT. SEAS 9 FT. FREEZING SPRAY. 
.MON...W WINDS 20 KT. SEAS 7 FT. FREEZING SPRAY. 
.MON NIGHT...W WINDS 20 KT. SEAS 6 FT. FREEZING SPRAY.
.TUE...W WINDS 20 KT. SEAS 7 FT. 
.WED...W WINDS 20 KT. SEAS 8 FT. 
.THU...SW WINDS 20 KT. SEAS 9 FT.  

$$

PKZ510-261315-
EASTERN US ARCTIC OFFSHORE-
212 PM AKDT SAT SEP 25 2010

.TONIGHT...W WINDS 30 KT. SEAS 14 FT. FREEZING SPRAY. 
.SUN...W WINDS 30 KT. SEAS 13 FT. HEAVY FREEZING SPRAY. 
.SUN NIGHT...W WINDS 20 KT. SEAS 9 FT. FREEZING SPRAY.
.MON...W WINDS 20 KT. SEAS 7 FT. FREEZING SPRAY. 
.MON NIGHT...W WINDS 15 KT. SEAS 7 FT. FREEZING SPRAY.
.TUE...SW WINDS 20 KT. SEAS 6 FT. 
.WED...S WINDS 25 KT. SEAS 7 FT. 
.THU...S WINDS 15 KT. SEAS 7 FT.  

$$

SDB/ES SEP 10

What forecasters said that day

The local office's own words before this storm 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 storm warning went out at Sep 24, 3:31 PM AKDT, 11 hours 16 minutes earlier.

Area forecast discussion, Sep 24, 3:31 PM AKDT, 11 hours 16 minutes before
NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
331 PM AKDT FRI SEP 24 2010

.DISCUSSION...
MODELS IN DECENT AGREEMENT THROUGH ABOUT 60 HOURS. VERY DEEP 959
MB LOW IN THE GULF OF ALASKA WILL CONTINUE TO PINWHEEL AROUND IN
THE GULF THROUGH SATURDAY AND RAPIDLY FILL...HOWEVER THE GFS DOES
FILL THE LOW MUCH QUICKER THAN THE ETA OR THE ECMWF.

A 995 MB LOW ABOUT 400 NM NORTH OF BARROW WILL DEEPEN SLIGHTLY
AND MOVE TO ABOUT 250 NM NORTH OF PRUDHOE BAY BY SAT EVENING.
STRONG COLD ADVECTION WILL PUSH ONSHORE OF THE ARCTIC COAST BY
THIS EVENING. THIS SHOULD RAMP UP THE WINDS QUITE SIGNIFICANTLY
AND SHOULD EVEN BE ENHANCED SOMEWHAT BY THE COLD ADVECTION. EXPECT
GALES NORTH OF THE ARCTIC COAST IN OFFSHORE ZONES. GIVEN LONG
FETCH DUE TO EXPANSIVE OPEN WATER NORTHWEST OF BARROW...THIS WILL
LIKELY HAVE SOME EFFECT ON COASTAL ISSUES.

COASTAL FLOOD WATCH REMAINS OUT FOR ZONE 202. HESITANT TO PULL THE
TRIGGER ON THE WARNING AS THEN WINDS HAVE NOT COME UP LIKE
THOUGHT...TO THIS POINT...HOWEVER THEY MAY BE DELAYED.

SCATTERED SNOW SHOWERS OR EVEN SQUALLS BEHIND THE FRONT GIVEN THE
VERY WARM SEA SURFACE TEMPERATURES AND THE GOOD COLD AIR ALOFT
MOVING OVER THE WATER.

THE REINFORCING ARCTIC AIR WILL POUR DOWN SOUTH TO THE ALASKA
RANGE BY SUNDAY MORNING. THIS WILL INCREASE WINDS OVER HIGHER
TERRAIN IN THEN INTERIOR FROM SAT THROUGH SUN.

APPEARS THAT THE COLD LONG WAVE TROUGH PATTERN MAY LOCK NORTHERN
ALASKA INTO BELOW NORMAL TEMPERATURES FOR AT LEAST THE NEXT 10
DAYS.

EASTERLY FLOW OVER SOUTHEAST ALASKA WILL PROVIDE THE POSSIBILITY
OF ISOLATED SNOW SHOWERS FROM SAY EAST OF EIELSON AFB ON SUNDAY
WITH COLD AIR ALREADY IN PLACE.

EASTERLY TO NORTHEASTERLY WINDS WILL BE THE INFLUENCE OVER THE
ARCTIC SLOPE THROUGH AT LEAST TUESDAY. THIS WILL CONTINUE THE
STRATUS AND THE FOG.

COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NONE

&&

.FIRE WEATHER...NONE.

&&

.HYDROLOGY...NONE.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY FOR AKZ201.

COASTAL FLOOD WATCH FOR AKZ202.

SMALL CRAFT ADVISORY FOR PKZ200-PKZ210-PKZ215-PKZ220-PKZ225-
PKZ230-PKZ235-PKZ240-PKZ245.
&&

CF SEP 10

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 24, 7:50 PM AKDTCoastal Flood WarningAFG38 hr
Sep 25, 2:47 AM AKDTHeavy Freezing Spray WarningAFG11 hr
Sep 25, 2:53 AM AKDTGale WarningAFG11 hr
Sep 25, 2:13 PM AKDTSmall Craft AdvisoryAFG37 hr

Nearby

Storm Warnings in Alaska, 2010Every storm warning in 2010

Sources

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