Alert archive / Alaska / Gale Warnings in 2009

Gale Warning 567, NWS Anchorage, AK

September 2, 2009

NWS Anchorage, AK issued this gale warning at Sep 2, 2009, 4:00 PM AKDT. It was in force for 60 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 2, 2009, 4:00 PM AKDT (00:00 UTC)
Expired
Sep 5, 2009, 4:00 AM AKDT
In force
60 hr
Issued by
NWS Anchorage, AK

The text

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

837 
FZAK62 PAFC 022329
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT WED SEP 2 2009

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-031400-
400 PM AKDT WED SEP 2 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 998 MB LOW NEAR 47N 166E WILL MOVE TO 50N 172E THU NIGHT AT 
990 MB AND THEN DRIFT EASTWARD ON FRI. A 998 MB LOW NEAR 57N 155W 
WILL MOVE TO 54N 147W THU AFTERNOON AND THEN DISSIPATE THU NIGHT.

$$

PKZ411-031400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT WED SEP 2 2009

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 5 FT. PATCHY FOG. 
.THU...S OF 54...E WIND INCREASING TO 30 KT IN THE AFTERNOON. SEAS
BUILDING TO 9 FT. N OF 54N...E WIND INCREASING TO 20 KT IN THE
AFTERNOON. SEAS 5 FT. PATCHY FOG. 
.THU NIGHT...S OF 55N...E WIND 35 KT. SEAS BUILDING TO 11 FT. N OF
55N...E WIND 15 TO 25 KT. SEAS BUILDING TO 7 FT. HIGHEST WINDS AND
SEAS S. PATCHY FOG. 
.FRI...S OF 55N...E WIND 25 TO 35 KT. SEAS BUILDING TO 14 FT. N OF
55N...E WIND 15 TO 25 KT. SEAS 5 TO 12 FT. HIGHEST WINDS AND SEAS S. 
.FRI NIGHT...E WIND 15 TO 30 KT. SEAS 6 TO 13 FT. HIGHEST WINDS AND
SEAS S. 
.SAT...NE WIND 15 TO 30 KT. SEAS 5 TO 11 FT. HIGHEST WINDS AND SEAS
S.
.SUN...N WIND 25 KT. SEAS 8 FT. 
.MON...NE WIND 25 KT. SEAS 9 FT.  

$$

PKZ412-031400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT WED SEP 2 2009

.TONIGHT...E OF 175W...N WIND 20 KT. W OF 175W...VARIABLE WIND 15 
KT. SEAS 9 FT. PATCHY FOG. 
.THU...E OF 174W...N WIND 10 TO 20 KT. W OF 174...VARIABLE WIND 15
KT. SEAS 7 FT. PATCHY FOG. 
.THU NIGHT...VARIABLE WIND 10 KT...EXCEPT SE WIND INCREASING TO 20 KT
S OF 57N AND W OF 178W AFTER MIDNIGHT. SEAS 5 FT. PATCHY FOG. 
.FRI AND FRI NIGHT...E WIND 10 TO 20 KT. SEAS 3 TO 6 FT. HIGHEST
WINDS AND SEAS SW.
.SAT...NE WIND 20 KT. SEAS 6 FT.
.SUN...NE WIND 30 KT. SEAS 9 FT. 
.MON...N WIND 35 KT. SEAS 14 FT.  

$$

PKZ413-031400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT WED SEP 2 2009

.TONIGHT...NW WIND 20 KT. SEAS 8 FT. PATCHY FOG. 
.THU...NE WIND 15 KT BECOMING E IN THE AFTERNOON. SEAS 7 FT. PATCHY
FOG. 
.THU NIGHT...W OF 174W...E WIND 15 TO 25 KT. SEAS BUILDING TO 8 FT. E
OF 174W...NE WIND 10 KT. SEAS 5 FT. PATCHY FOG. 
.FRI...E OF 174W...E WIND 15 TO 30 KT. W OF 174W...E WIND 10 TO 20
KT. SEAS 5 TO 9 FT. HIGHEST SEAS S AND W.  
.FRI NIGHT...E WIND 20 TO 30 KT. SEAS 5 TO 11 FT. HIGHEST WINDS AND
SEAS S AND W.
.SAT AND SUN...NE WIND 25 KT. SEAS 9 FT. 
.MON...N WIND 30 KT. SEAS 13 FT.  

$$

PKZ414-031400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT WED SEP 2 2009

.TONIGHT...NW WIND 25 KT. SEAS 10 FT. PATCHY FOG. 
.THU...NW WIND 25 KT. SEAS 9 FT. PATCHY FOG. 
.THU NIGHT...N WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.FRI...N WIND 15 KT. SEAS 5 FT. 
.FRI NIGHT...NE WIND 15 KT. SEAS 4 FT. 
.SAT...NE WIND 20 KT. SEAS 4 FT. 
.SUN...NE WIND 25 KT. SEAS 6 FT. 
.MON...NE WIND 35 KT. SEAS 11 FT.  

$$
9 follow-up statements
000 
FZAK62 PAFC 030125 AAB
OFFALU

OFFSHORE WATERS FORECAST...UPDATED
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT WED SEP 2 2009

UPDATED ZONE 414

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-031400-
400 PM AKDT WED SEP 2 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 998 MB LOW NEAR 47N 166E WILL MOVE TO 50N 172E THU NIGHT AT 
990 MB AND THEN DRIFT EASTWARD ON FRI. A 998 MB LOW NEAR 57N 155W 
WILL MOVE TO 54N 147W THU AFTERNOON AND THEN DISSIPATE THU NIGHT.

$$

PKZ411-031400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT WED SEP 2 2009

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 5 FT. PATCHY FOG. 
.THU...E WIND INCREASING TO 20 TO 30 KT IN THE AFTERNOON. SEAS
5 TO 9 FT. HIGHEST WINDS AND SEAS S. PATCHY FOG. 
.THU NIGHT...S OF 55N...E WIND 35 KT. SEAS BUILDING TO 11 FT. N OF
55N...E WIND 15 TO 25 KT. SEAS BUILDING TO 7 FT. PATCHY FOG. 
.FRI...S OF 55N...E WIND 25 TO 35 KT. SEAS BUILDING TO 14 FT. N OF
55N...E WIND 15 TO 25 KT. SEAS 5 TO 12 FT. HIGHEST WINDS AND SEAS S. 
.FRI NIGHT...E WIND 15 TO 30 KT. SEAS 6 TO 13 FT. HIGHEST WINDS AND
SEAS S. 
.SAT...NE WIND 15 TO 30 KT. SEAS 5 TO 11 FT. HIGHEST WINDS AND SEAS
S.
.SUN...N WIND 25 KT. SEAS 8 FT. 
.MON...NE WIND 25 KT. SEAS 9 FT.  

$$

PKZ412-031400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT WED SEP 2 2009

.TONIGHT...E OF 175W...N WIND 20 KT. W OF 175W...VARIABLE WIND 15 
KT. SEAS 9 FT. PATCHY FOG. 
.THU...E OF 174W...N WIND 10 TO 20 KT. W OF 174...VARIABLE WIND 15
KT. SEAS 7 FT. PATCHY FOG. 
.THU NIGHT...VARIABLE WIND 10 KT...EXCEPT SE WIND INCREASING TO 20 
KT S OF 57N AND W OF 178W AFTER MIDNIGHT. SEAS 5 FT. PATCHY FOG. 
.FRI AND FRI NIGHT...E WIND 10 TO 20 KT. SEAS 3 TO 6 FT. 
.SAT...NE WIND 20 KT. SEAS 6 FT.
.SUN...NE WIND 30 KT. SEAS 9 FT. 
.MON...N WIND 35 KT. SEAS 14 FT.  

$$

PKZ413-031400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT WED SEP 2 2009

.TONIGHT...NW WIND 20 KT. SEAS 8 FT. PATCHY FOG. 
.THU...NE WIND 15 KT BECOMING E IN THE AFTERNOON. SEAS 7 FT. PATCHY
FOG. 
.THU NIGHT...W OF 174W...E WIND 15 TO 25 KT. SEAS BUILDING TO 8 FT. 
E OF 174W...NE WIND 10 KT. SEAS 5 FT. PATCHY FOG. 
.FRI...E OF 174W...E WIND 15 TO 30 KT. W OF 174W...E WIND 10 TO 20
KT. SEAS 5 TO 9 FT. HIGHEST SEAS S AND W.  
.FRI NIGHT...E WIND 20 TO 30 KT. SEAS 5 TO 11 FT. HIGHEST WINDS AND
SEAS S AND W.
.SAT AND SUN...NE WIND 25 KT. SEAS 9 FT. 
.MON...N WIND 30 KT. SEAS 13 FT.  

$$

PKZ414-031400-
BERING SEA OFFSHORE EAST OF 171W
525 PM AKDT WED SEP 2 2009

.TONIGHT...NW WIND 30 KT. SEAS 10 FT. PATCHY FOG. 
.THU...NW WIND 25 KT. SEAS 9 FT. PATCHY FOG. 
.THU NIGHT...N WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.FRI...N WIND 15 KT. SEAS 5 FT. 
.FRI NIGHT...NE WIND 15 KT. SEAS 4 FT. 
.SAT...NE WIND 20 KT. SEAS 4 FT. 
.SUN...NE WIND 25 KT. SEAS 6 FT. 
.MON...NE WIND 35 KT. SEAS 11 FT.  

$$
000 
FZAK62 PAFC 030017 CCA
OFFALU

OFFSHORE WATERS FORECAST...CORRECTED
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT WED SEP 2 2009

CORRECTED ZONES 411 AND 412

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-031400-
400 PM AKDT WED SEP 2 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 998 MB LOW NEAR 47N 166E WILL MOVE TO 50N 172E THU NIGHT AT 
990 MB AND THEN DRIFT EASTWARD ON FRI. A 998 MB LOW NEAR 57N 155W 
WILL MOVE TO 54N 147W THU AFTERNOON AND THEN DISSIPATE THU NIGHT.

$$

PKZ411-031400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT WED SEP 2 2009

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 5 FT. PATCHY FOG. 
.THU...E WIND INCREASING TO 20 TO 30 KT IN THE AFTERNOON. SEAS
5 TO 9 FT. HIGHEST WINDS AND SEAS S. PATCHY FOG. 
.THU NIGHT...S OF 55N...E WIND 35 KT. SEAS BUILDING TO 11 FT. N OF
55N...E WIND 15 TO 25 KT. SEAS BUILDING TO 7 FT. PATCHY FOG. 
.FRI...S OF 55N...E WIND 25 TO 35 KT. SEAS BUILDING TO 14 FT. N OF
55N...E WIND 15 TO 25 KT. SEAS 5 TO 12 FT. HIGHEST WINDS AND SEAS S. 
.FRI NIGHT...E WIND 15 TO 30 KT. SEAS 6 TO 13 FT. HIGHEST WINDS AND
SEAS S. 
.SAT...NE WIND 15 TO 30 KT. SEAS 5 TO 11 FT. HIGHEST WINDS AND SEAS
S.
.SUN...N WIND 25 KT. SEAS 8 FT. 
.MON...NE WIND 25 KT. SEAS 9 FT.  

$$

PKZ412-031400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT WED SEP 2 2009

.TONIGHT...E OF 175W...N WIND 20 KT. W OF 175W...VARIABLE WIND 15 
KT. SEAS 9 FT. PATCHY FOG. 
.THU...E OF 174W...N WIND 10 TO 20 KT. W OF 174...VARIABLE WIND 15
KT. SEAS 7 FT. PATCHY FOG. 
.THU NIGHT...VARIABLE WIND 10 KT...EXCEPT SE WIND INCREASING TO 20 
KT S OF 57N AND W OF 178W AFTER MIDNIGHT. SEAS 5 FT. PATCHY FOG. 
.FRI AND FRI NIGHT...E WIND 10 TO 20 KT. SEAS 3 TO 6 FT. 
.SAT...NE WIND 20 KT. SEAS 6 FT.
.SUN...NE WIND 30 KT. SEAS 9 FT. 
.MON...N WIND 35 KT. SEAS 14 FT.  

$$

PKZ413-031400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT WED SEP 2 2009

.TONIGHT...NW WIND 20 KT. SEAS 8 FT. PATCHY FOG. 
.THU...NE WIND 15 KT BECOMING E IN THE AFTERNOON. SEAS 7 FT. PATCHY
FOG. 
.THU NIGHT...W OF 174W...E WIND 15 TO 25 KT. SEAS BUILDING TO 8 FT. 
E OF 174W...NE WIND 10 KT. SEAS 5 FT. PATCHY FOG. 
.FRI...E OF 174W...E WIND 15 TO 30 KT. W OF 174W...E WIND 10 TO 20
KT. SEAS 5 TO 9 FT. HIGHEST SEAS S AND W.  
.FRI NIGHT...E WIND 20 TO 30 KT. SEAS 5 TO 11 FT. HIGHEST WINDS AND
SEAS S AND W.
.SAT AND SUN...NE WIND 25 KT. SEAS 9 FT. 
.MON...N WIND 30 KT. SEAS 13 FT.  

$$

PKZ414-031400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT WED SEP 2 2009

.TONIGHT...NW WIND 25 KT. SEAS 10 FT. PATCHY FOG. 
.THU...NW WIND 25 KT. SEAS 9 FT. PATCHY FOG. 
.THU NIGHT...N WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.FRI...N WIND 15 KT. SEAS 5 FT. 
.FRI NIGHT...NE WIND 15 KT. SEAS 4 FT. 
.SAT...NE WIND 20 KT. SEAS 4 FT. 
.SUN...NE WIND 25 KT. SEAS 6 FT. 
.MON...NE WIND 35 KT. SEAS 11 FT.  

$$
000 
FZAK62 PAFC 030126 AAB
OFFALU

OFFSHORE WATERS FORECAST...UPDATED
NATIONAL WEATHER SERVICE ANCHORAGE AK
525 PM AKDT WED SEP 2 2009

UPDATED ZONE 414

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-031400-
400 PM AKDT WED SEP 2 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 998 MB LOW NEAR 47N 166E WILL MOVE TO 50N 172E THU NIGHT AT 
990 MB AND THEN DRIFT EASTWARD ON FRI. A 998 MB LOW NEAR 57N 155W 
WILL MOVE TO 54N 147W THU AFTERNOON AND THEN DISSIPATE THU NIGHT.

$$

PKZ411-031400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT WED SEP 2 2009

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 5 FT. PATCHY FOG. 
.THU...E WIND INCREASING TO 20 TO 30 KT IN THE AFTERNOON. SEAS
5 TO 9 FT. HIGHEST WINDS AND SEAS S. PATCHY FOG. 
.THU NIGHT...S OF 55N...E WIND 35 KT. SEAS BUILDING TO 11 FT. N OF
55N...E WIND 15 TO 25 KT. SEAS BUILDING TO 7 FT. PATCHY FOG. 
.FRI...S OF 55N...E WIND 25 TO 35 KT. SEAS BUILDING TO 14 FT. N OF
55N...E WIND 15 TO 25 KT. SEAS 5 TO 12 FT. HIGHEST WINDS AND SEAS S. 
.FRI NIGHT...E WIND 15 TO 30 KT. SEAS 6 TO 13 FT. HIGHEST WINDS AND
SEAS S. 
.SAT...NE WIND 15 TO 30 KT. SEAS 5 TO 11 FT. HIGHEST WINDS AND SEAS
S.
.SUN...N WIND 25 KT. SEAS 8 FT. 
.MON...NE WIND 25 KT. SEAS 9 FT.  

$$

PKZ412-031400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT WED SEP 2 2009

.TONIGHT...E OF 175W...N WIND 20 KT. W OF 175W...VARIABLE WIND 15 
KT. SEAS 9 FT. PATCHY FOG. 
.THU...E OF 174W...N WIND 10 TO 20 KT. W OF 174...VARIABLE WIND 15
KT. SEAS 7 FT. PATCHY FOG. 
.THU NIGHT...VARIABLE WIND 10 KT...EXCEPT SE WIND INCREASING TO 20 
KT S OF 57N AND W OF 178W AFTER MIDNIGHT. SEAS 5 FT. PATCHY FOG. 
.FRI AND FRI NIGHT...E WIND 10 TO 20 KT. SEAS 3 TO 6 FT. 
.SAT...NE WIND 20 KT. SEAS 6 FT.
.SUN...NE WIND 30 KT. SEAS 9 FT. 
.MON...N WIND 35 KT. SEAS 14 FT.  

$$

PKZ413-031400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT WED SEP 2 2009

.TONIGHT...NW WIND 20 KT. SEAS 8 FT. PATCHY FOG. 
.THU...NE WIND 15 KT BECOMING E IN THE AFTERNOON. SEAS 7 FT. PATCHY
FOG. 
.THU NIGHT...W OF 174W...E WIND 15 TO 25 KT. SEAS BUILDING TO 8 FT. 
E OF 174W...NE WIND 10 KT. SEAS 5 FT. PATCHY FOG. 
.FRI...E OF 174W...E WIND 15 TO 30 KT. W OF 174W...E WIND 10 TO 20
KT. SEAS 5 TO 9 FT. HIGHEST SEAS S AND W.  
.FRI NIGHT...E WIND 20 TO 30 KT. SEAS 5 TO 11 FT. HIGHEST WINDS AND
SEAS S AND W.
.SAT AND SUN...NE WIND 25 KT. SEAS 9 FT. 
.MON...N WIND 30 KT. SEAS 13 FT.  

$$

PKZ414-031400-
BERING SEA OFFSHORE EAST OF 171W
525 PM AKDT WED SEP 2 2009

.TONIGHT...NW WIND 30 KT. SEAS 10 FT. PATCHY FOG. 
.THU...NW WIND 25 KT. SEAS 9 FT. PATCHY FOG. 
.THU NIGHT...N WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.FRI...N WIND 15 KT. SEAS 5 FT. 
.FRI NIGHT...NE WIND 15 KT. SEAS 4 FT. 
.SAT...NE WIND 20 KT. SEAS 4 FT. 
.SUN...NE WIND 25 KT. SEAS 6 FT. 
.MON...NE WIND 35 KT. SEAS 11 FT.  

$$
000 
FZAK62 PAFC 031110
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT THU SEP 3 2009

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-040200-
400 AM AKDT THU SEP 3 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 998 MB LOW NEAR 47N 166E WILL MOVE TO 50N 172E THU NIGHT AT 990 MB
AND THEN DRIFT EASTWARD ON FRI. A 998 MB LOW NEAR 57N 155W WILL MOVE
TO 54N 147W THU AFTERNOON AND THEN DISSIPATE THU NIGHT. 

$$

PKZ411-040200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT THU SEP 3 2009

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...SE WIND 15 KT BECOMING E 25 KT IN THE AFTERNOON. SEAS 6 FT.
PATCHY FOG. 
.TONIGHT AND FRI...E WIND 35 KT. SEAS 14 FT. PATCHY FOG. 
.FRI NIGHT...E WIND 30 KT. SEAS 12 FT. 
.SAT...NE WIND 25 KT. SEAS 9 FT. 
.SUN...N WIND 20 KT. SEAS 6 FT. 
.MON...NE WIND 20 KT. SEAS 5 FT.  

$$

PKZ412-040200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT THU SEP 3 2009

.TODAY...N WIND 15 KT BECOMING SE IN THE AFTERNOON. SEAS 4 FT. 
PATCHY FOG. 
.TONIGHT...SE WIND 15 KT. SEAS 4 FT. PATCHY FOG. 
.FRI AND FRI NIGHT...E WIND 20 KT. SEAS 6 FT. PATCHY FOG. 
.SAT...NE WIND 20 KT. SEAS 6 FT. 
.SUN...NE WIND 25 KT. SEAS 8 FT. 
.MON...N WIND 30 KT. SEAS 11 FT.  

$$

PKZ413-040200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT THU SEP 3 2009

.TODAY...N WIND 20 KT BECOMING SE IN THE AFTERNOON. SEAS 6 FT. 
PATCHY FOG. 
.TONIGHT...E WIND 25 KT. SEAS 8 FT. PATCHY FOG. 
.FRI...E WIND 30 KT. SEAS 11 FT. PATCHY FOG. 
.FRI NIGHT AND SAT...E WIND 30 KT. SEAS 11 FT. 
.SUN AND MON...N WIND 25 KT. SEAS 8 FT.  

$$

PKZ414-040200-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT THU SEP 3 2009

.TODAY...NW WIND 25 KT. SEAS 9 FT. PATCHY FOG. 
.TONIGHT...N WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.FRI...N WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.FRI NIGHT AND SAT...NE WIND 15 KT. SEAS 4 FT. 
.SUN...NE WIND 25 KT. SEAS 8 FT. 
.MON...N WIND 30 KT. SEAS 11 FT.  

$$
271 
FZAK62 PAFC 032259
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT THU SEP 3 2009

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-041400-
400 PM AKDT THU SEP 3 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 988 MB LOW NEAR 49N 172E WILL WEAKEN TO 996 MB AS IT MOVES 
TO 49N 179W SAT AFTERNOON. HIGH PRESSURE WILL PERSIST OVER 
THE NORTHERN BERING THROUGH SATURDAY.
$$

PKZ411-041400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT THU SEP 3 2009

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...E WIND 35 KT. SEAS 11 FT. PATCHY FOG. 
.FRI...E WIND 35 KT. SEAS 13 FT. PATCHY FOG. 
.FRI NIGHT...E WIND 30 KT. SEAS 12 FT. PATCHY FOG. 
.SAT...NE WIND 25 KT. SEAS 10 FT. 
.SAT NIGHT...N WIND 20 KT. SEAS 9 FT. 
.SUN...N WIND 20 KT. SEAS 8 FT. 
.MON...E WIND 15 KT. SEAS 5 FT. 
.TUE...SW WIND 25 KT. SEAS 9 FT.  

$$

PKZ412-041400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT THU SEP 3 2009

.TONIGHT...E WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.FRI...E WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.FRI NIGHT...NE WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.SAT...NE WIND 20 KT. SEAS 7 FT. 
.SAT NIGHT...NE WIND 20 KT. SEAS 7 FT. 
.SUN...NE WIND 25 KT. SEAS 9 FT. 
.MON...NE WIND 25 KT. SEAS 9 FT. 
.TUE...N WIND 25 KT. SEAS 9 FT.  

$$

PKZ413-041400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT THU SEP 3 2009

.TONIGHT...E WIND 25 KT. SEAS 9 FT. PATCHY FOG. 
.FRI...E WIND 30 KT. SEAS 11 FT. PATCHY FOG. 
.FRI NIGHT...E WIND 30 KT. SEAS 11 FT. PATCHY FOG. 
.SAT...E WIND 30 KT. SEAS 11 FT. 
.SAT NIGHT...NE WIND 25 KT. SEAS 9 FT. 
.SUN...N WIND 25 KT. SEAS 9 FT. 
.MON...N WIND 25 KT. SEAS 9 FT. 
.TUE...N WIND 25 KT. SEAS 9 FT.  

$$

PKZ414-041400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT THU SEP 3 2009

.TONIGHT...N WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.FRI...N WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.FRI NIGHT...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.SAT...NE WIND 20 KT. SEAS 7 FT. 
.SAT NIGHT...E WIND 20 KT. SEAS 7 FT. 
.SUN...NE WIND 25 KT. SEAS 9 FT. 
.MON...N WIND 30 KT. SEAS 11 FT. 
.TUE...N WIND 30 KT. SEAS 11 FT.  

$$
000 
FZAK62 PAFC 040628 AAA
OFFALU

OFFSHORE WATERS FORECAST...UPDATED
NATIONAL WEATHER SERVICE ANCHORAGE AK
1030 PM AKDT THU SEP 3 2009

UPDATED 411 AND 413

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-041400-
400 PM AKDT THU SEP 3 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 988 MB LOW NEAR 49N 172E WILL WEAKEN TO 996 MB AS IT MOVES 
TO 49N 179W SAT AFTERNOON. HIGH PRESSURE WILL PERSIST OVER 
THE NORTHERN BERING THROUGH SATURDAY.
$$

PKZ411-041400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
1030 PM AKDT THU SEP 3 2009

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...E WIND 15 TO 35 KT. SEAS 5 TO 11 FT. HIGHEST WINDS AND
SEAS S. PATCHY FOG. 
.FRI...E WIND 20 TO 35 KT. SEAS 6 TO 14 FT. HIGHEST WINDS AND SEAS 
S. PATCHY FOG. 
.FRI NIGHT...E WIND 30 KT. SEAS 12 FT. PATCHY FOG. 
.SAT...NE WIND 25 KT. SEAS 10 FT. 
.SAT NIGHT...N WIND 20 KT. SEAS 9 FT. 
.SUN...N WIND 20 KT. SEAS 8 FT. 
.MON...E WIND 15 KT. SEAS 5 FT. 
.TUE...SW WIND 25 KT. SEAS 9 FT.  

$$

PKZ412-041400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT THU SEP 3 2009

.TONIGHT...E WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.FRI...E WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.FRI NIGHT...NE WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.SAT...NE WIND 20 KT. SEAS 7 FT. 
.SAT NIGHT...NE WIND 20 KT. SEAS 7 FT. 
.SUN...NE WIND 25 KT. SEAS 9 FT. 
.MON...NE WIND 25 KT. SEAS 9 FT. 
.TUE...N WIND 25 KT. SEAS 9 FT.  

$$

PKZ413-041400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
1030 PM AKDT THU SEP 3 2009

.TONIGHT...E WIND 15 TO 25 KT. SEAS 5 TO 9 FT. HIGHEST WINDS AND 
SEAS W. PATCHY FOG. 
.FRI...E WIND 15 TO 30 KT. SEAS 6 TO 12 FT. HIGHEST WINDS AND SEAS 
W. PATCHY FOG. 
.FRI NIGHT...E WIND 30 KT. SEAS 11 FT. PATCHY FOG. 
.SAT...E WIND 30 KT. SEAS 11 FT. 
.SAT NIGHT...NE WIND 25 KT. SEAS 9 FT. 
.SUN...N WIND 25 KT. SEAS 9 FT. 
.MON...N WIND 25 KT. SEAS 9 FT. 
.TUE...N WIND 25 KT. SEAS 9 FT.  

$$

PKZ414-041400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT THU SEP 3 2009

.TONIGHT...N WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.FRI...N WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.FRI NIGHT...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.SAT...NE WIND 20 KT. SEAS 7 FT. 
.SAT NIGHT...E WIND 20 KT. SEAS 7 FT. 
.SUN...NE WIND 25 KT. SEAS 9 FT. 
.MON...N WIND 30 KT. SEAS 11 FT. 
.TUE...N WIND 30 KT. SEAS 11 FT.  

$$
000 
FZAK62 PAFC 041149
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT FRI SEP 4 2009

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-050200-
400 AM AKDT FRI SEP 4 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 988 MB LOW AT 50N 171E MOVES TO 51N 169W LATE SAT NIGHT AS IT
WEAKENS TO 996 MB.
$$

PKZ411-050200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT FRI SEP 4 2009

...GALE WARNING THROUGH TONIGHT...

.TODAY...SOUTH OF 56N...E WIND 40 KT. SEAS 14 FT. NORTH OF 56N...E
WIND 30 KT. SEAS 10 FT. PATCHY FOG. RAIN.
.TONIGHT...SOUTH OF 56N...E WIND 35 KT. SEAS 13 FT. NORTH OF 56N...E
WIND 25 KT. SEAS 10 FT. PATCHY FOG. RAIN.
.SAT...NE WIND 30 KT. SEAS 13 FT. PATCHY FOG. 
.SAT NIGHT...NE WIND 25 KT. SEAS 10 FT. 
.SUN...N WIND 25 KT. SEAS 9 FT. 
.MON...NE WIND 25 KT. SEAS 9 FT. 
.TUE...NW WIND 20 KT. SEAS 8 FT.  

$$

PKZ412-050200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT FRI SEP 4 2009

.TODAY...E WIND 20 KT. SEAS 5 FT. PATCHY FOG. 
.TONIGHT AND SAT...E WIND 20 KT. SEAS 6 FT. PATCHY FOG. 
.SAT NIGHT AND SUN...NE WIND 25 KT. SEAS 9 FT. 
.MON AND TUE...N WIND 30 KT. SEAS 11 FT. 

$$

PKZ413-050200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT FRI SEP 4 2009

...GALE WARNING THROUGH TONIGHT...

.TODAY...WEST OF 175W...E WIND 35 KT. SEAS 12 FT. EAST OF 175W...E
WIND 15 KT INCREASING TO 25 KT DURING THE AFTERNOON. SEAS 5 FT
BUILDING TO 8 FT. PATCHY FOG. 
.TONIGHT...WEST OF 175W...E WIND 35 KT. SEAS 13 FT. EAST OF 175 W...E
WIND 25 KT. SEAS 9 FT. PATCHY FOG. 
.SAT...E WIND 30 KT. SEAS 11 FT. PATCHY FOG. RAIN.
.SAT NIGHT AND SUN...NE WIND 25 KT. SEAS 9 FT. 
.MON...N WIND 30 KT. SEAS 11 FT. 
.TUE...NW WIND 30 KT. SEAS 12 FT.  

$$

PKZ414-050200-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT FRI SEP 4 2009

.TODAY...N WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.TONIGHT...VARIABLE WIND 10 KT. SEAS 4 FT. 
.SAT...NE WIND 15 KT. SEAS 4 FT. 
.SAT NIGHT...E WIND 20 KT. SEAS 6 FT. 
.SUN...E WIND 25 KT. SEAS 8 FT. 
.MON...N WIND 30 KT. SEAS 10 FT. 
.TUE...N WIND 35 KT. SEAS 12 FT.  

$$
000 
FZAK62 PAFC 042306
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT FRI SEP 4 2009

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-051400-
400 PM AKDT FRI SEP 4 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 991 MB LOW NEAR 50N 174E WILL WEAKEN TO 996 MB AS IT MOVES 
TO 52N 170W SUN AFTERNOON.

$$

PKZ411-051400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT FRI SEP 4 2009

...GALE WARNING TONIGHT...

.TONIGHT...E WIND 25 TO 35 KT. SEAS 10 TO 14 FT. STRONGEST WINDS AND
HIGHEST SEAS SOUTH OF 56N. PATCHY FOG. RAIN SHOWERS. 
.SAT...NE WIND 15 TO 25 KT. SEAS 7 TO 12 FT. STRONGEST WINDS AND
HIGHEST SEAS SOUTH OF 56N. PATCHY FOG. 
.SAT NIGHT...NE WIND 15 TO 25 KT. SEAS 6 TO 10 FT. PATCHY FOG.
.SUN AND SUN NIGHT...N WIND 25 KT. SEAS 8 FT. 
.MON...NE WIND 15 KT. SEAS 8 FT. 
.TUE THROUGH WED...NW WIND 20 KT. SEAS 7 FT.  

$$

PKZ412-051400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT FRI SEP 4 2009

.TONIGHT...E WIND 20 KT. SEAS 5 FT. PATCHY FOG. 
.SAT...E WIND 20 KT. SEAS 5 FT. PATCHY FOG. 
.SAT NIGHT...NE WIND 25 KT. SEAS 7 FT. PATCHY FOG. 
.SUN...NE WIND 25 KT. SEAS 7 FT. 
.SUN NIGHT...N WIND 30 KT. SEAS 10 FT. 
.MON THROUGH TUE...N WIND 30 KT. SEAS 13 FT. 
.WED...N WIND 35 KT. SEAS 13 FT.  

$$

PKZ413-051400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT FRI SEP 4 2009

...GALE WARNING TONIGHT...

.TONIGHT...E WIND 20 TO 35 KT. SEAS 7 TO 13 FT. STRONGEST WINDS AND
HIGHEST SEAS NEAR 180. PATCHY FOG. 
.SAT...E WIND 30 KT. SEAS 10 FT. PATCHY FOG. 
.SAT NIGHT...NE WIND 25 KT. SEAS 9 FT. PATCHY FOG. RAIN.
.SUN...NE WIND 25 KT. SEAS 9 FT. 
.SUN NIGHT...N WIND 25 KT. SEAS 9 FT. 
.MON...N WIND 30 KT. SEAS 12 FT. 
.TUE...NW WIND 30 KT. SEAS 15 FT. 
.WED...NW WIND 35 KT. SEAS 13 FT.  

$$

PKZ414-051400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT FRI SEP 4 2009

.TONIGHT...NE WIND 15 KT. SEAS 4 FT. PATCHY FOG. 
.SAT...NE WIND 15 KT. SEAS 4 FT. 
.SAT NIGHT...E WIND 20 KT. SEAS 4 FT. PATCHY FOG. 
.SUN...E WIND 20 KT. SEAS 5 FT. 
.SUN NIGHT...NE WIND 20 KT. SEAS 6 FT. 
.MON...N WIND 30 KT. SEAS 12 FT. 
.TUE THROUGH WED...N WIND 35 KT. SEAS 14 FT.  

$$
000 
FZAK62 PAFC 051154
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT SAT SEP 5 2009

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-060200-
400 AM AKDT SAT SEP 5 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 992 MB LOW AT 50N 177E MOVES TO 52N 167W AT 994 MB LATE SUN NIGHT.
$$

PKZ411-060200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT SAT SEP 5 2009

.TODAY...NE WIND 30 KT. SEAS 15 FT. PATCHY FOG. RAIN.
.TONIGHT...NE WIND 30 KT. SEAS 14 FT. PATCHY FOG. 
.SUN AND SUN NIGHT...N WIND 25 KT. SEAS 11 FT. 
.MON...NE WIND 20 KT. SEAS 9 FT. 
.TUE...NW WIND 20 KT. SEAS 8 FT. 
.WED...NW WIND 15 KT. SEAS 7 FT.  

$$

PKZ412-060200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT SAT SEP 5 2009

.TODAY...E WIND 20 KT. SEAS 6 FT. PATCHY FOG. 
.TONIGHT AND SUN...NE WIND 25 KT. SEAS 8 FT. PATCHY FOG. 
.SUN NIGHT...N WIND 30 KT. SEAS 11 FT. 
.MON...N WIND 35 KT. SEAS 14 FT. 
.TUE AND WED...NW WIND 35 KT. SEAS 15 FT. 

$$

PKZ413-060200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT SAT SEP 5 2009

.TODAY...E WIND 20 TO 30 KT. SEAS 7 TO 11 FT. PATCHY FOG. RAIN.
.TONIGHT...E WIND 30 KT. SEAS 12 FT. PATCHY FOG. RAIN.
.SUN...NE WIND 25 KT. SEAS 11 FT. PATCHY FOG. RAIN.
.SUN NIGHT...N WIND 25 KT. SEAS 11 FT. 
.MON...N WIND 30 KT. SEAS 14 FT. 
.TUE...NW WIND 30 KT. SEAS 15 FT. 
.WED...NW WIND 35 KT. SEAS 13 FT.  

$$

PKZ414-060200-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT SAT SEP 5 2009

.TODAY...E WIND 15 KT. SEAS 3 FT. AREAS OF FOG. 
.TONIGHT...E WIND 15 KT INCREASING TO 25 KT AFTER MIDNIGHT. SEAS 4 FT
BUILDING TO 7 FT AFTER MIDNIGHT. PATCHY FOG.
.SUN...E WIND 25 KT. SEAS 7 FT. PATCHY FOG. 
.SUN NIGHT...NE WIND 20 KT. SEAS 7 FT. 
.MON...N WIND 30 KT. SEAS 11 FT. 
.TUE...NW WIND 35 KT. SEAS 15 FT. 
.WED...N WIND 35 KT. SEAS 16 FT.  

$$

What forecasters said that day

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

NWS Anchorage, AK wrote its last area forecast discussion before this gale warning went out at Sep 2, 1:45 PM AKDT, 2 hours 15 minutes earlier.

Area forecast discussion, Sep 2, 1:45 PM AKDT, 2 hours 15 minutes before
AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
145 PM AKDT WED SEP 2 2009

.ANALYSIS AND UPPER LEVELS...LARGE CLOSED LOW CENTERED OFF THE
KUSKOKWIM DELTA COAST THIS MORNING IS DIVING SOUTHEAST TOWARD
THE GULF/NORTHEAST PACIFIC. THIS MOTION IS PRIMARILY DRIVEN BY
A STRONG TROPICAL JET (ESTIMATED MAX SPEED AROUND 120 KT) WHICH
EXTENDS FROM THE WESTERN ALEUTIANS SOUTHEASTWARD INTO THE BASE
OF THE TROUGH...ACTUALLY PRODUCING STRONG DIGGING OF A SLIGHTLY
OUT-OF PHASE SHORT-WAVE AT THE BASE OF THE TROUGH. A SURFACE LOW
HAS NOW DEVELOPED JUST AHEAD OF THIS SHORT-WAVE. THIS JET WILL
SOON COMBINE WITH A MUCH WEAKER JET ON THE WEST SIDE OF THE UPPER
LOW AND PUSH THE ENTIRE SYSTEM DOWN INTO THE NORTHEAST PACIFIC.

SYNOPTIC LIFT OUT AHEAD OF THE UPPER TROUGH CONTINUES TO PRODUCE
AREAS OF RAIN ACROSS THE SOUTHERN MAINLAND. A SURFACE RIDGE
EXTENDING FROM SOUTHEAST ALASKA ALONG THE NORTH GULF COAST HAS
PRODUCED STRONG GRADIENT WINDS WITH DOWNSLOPING ON THE LEE SIDE
OF THE CHUGACH AND KENAI MOUNTAINS. HOWEVER...THE RIDGE IS NOW
BEING PUSHED INLAND AS THE EASTERN BERING TROUGH BEGINS TO
TRANSITION TO THE GULF AND WINDS ARE DIMINISHING...SO THAT
LIGHT RAIN IS AGAIN FALLING ON THE LEE SIDE OF THE MOUNTAINS.

A TIGHT GRADIENT ON THE BACK SIDE OF THE EASTERN BERING LOW
ALONG WITH DECENT JET SUPPORT ALOFT AND LOW LEVEL COLD ADVECTION
ARE WORKING TO PRODUCE GUSTY WINDS FROM THE CENTRAL BERING DOWN
TO THE EASTERN ALEUTIANS AND SOUTHERN ALASKA PENINSULA. A SHORT-WAVE
RIDGE DOMINATES WEST OF HERE...ALTHOUGH A SHORT-WAVE EMBEDDED WITHIN
THE WESTERLIES IS AIDING IN DEVELOPMENT OF A SURFACE LOW SOUTHWEST
OF THE WESTERN ALEUTIANS.

.MODEL DISCUSSION...MODELS ARE IN GENERAL AGREEMENT THROUGH THE
FIRST FEW DAYS OF THE FORECAST. MINOR DIFFERENCES CONTINUE IN
HANDLING OF EASTERN BERING SURFACE LOW AS IT TRANSITIONS TO THE
GULF AND ITS INTERACTION WITH THE NEWLY FORMED LOW NEAR THE BASE
OF THE TROUGH. THE GFS/NAM SWING THE NEW LOW TOWARD THE QUEEN
CHARLOTTE ISLANDS AND ABSORB THE BERING LOW INTO THIS NEW LOW.
THE ECMWF/UKMET QUICKLY MERGE THE TWO LOWS BACK TO THE WEST
SOUTHEAST OF KODIAK ISLAND. A RUN-TO-RUN COMPARISON SHOWS EACH
MODEL TO BE CONSISTENT WITH ITSELF. CURRENT FORECAST IS NOT TOO
FAR FROM THE GFS/NAM SOLUTION SO PLAN TO STICK WITH THAT FOR NOW.
THE GREATEST IMPACT FROM THIS WOULD BE FOR THE GULF AND KODIAK
ISLAND.

MODELS HAVE A MORE SIMILAR HANDLING OF THE LOW MOVING TOWARD THE
WESTERN ALEUTIANS...ALTHOUGH THERE IS A DEFINITE TREND TOWARD
SLOWER EASTWARD PROGRESSION WHICH WILL BE REFLECTED IN THE NEW
FORECAST.

THERE HAS BEEN A CHANGE IN THE HANDLING OF THE RIDGE BUILDING
OVER MAINLAND ALASKA THIS WEEKEND. THE LATEST MODEL SOLUTIONS
KEEP THE RIDGE CENTERED FROM INTERIOR ALASKA TO SOUTHWEST
ALASKA...WHICH ALLOWS A SHORT-WAVE TO DROP SOUTHWESTWARD FROM
THE YUKON TO ANCHORAGE ON SATURDAY. PRIOR TO THIS MODELS HAD
CONSISTENTLY SHOWED THIS PASSING TO THE EAST ACROSS THE EASTERN
COPPER RIVER BASIN. SINCE THIS WOULD BE A DRAMATIC CHANGE AM
NOT READY TO BUY INTO IT YET...BUT WITH AGREEMENT AMONG MODELS
WILL TREND TOWARD MORE CLOUDS AND INTRODUCE A CHANCE OF RAIN AS
FAR WEST AS ANCHORAGE.

.SHORT TERM FORECAST...

SOUTHCENTRAL ALASKA...AS THE EASTERN BERING LOW TRANSITIONS
TO THE GULF TONIGHT FLOW WILL GRADUALLY BACK TO THE EAST AND
EVENTUALLY NORTH...RESULTING IN DRYING OVER INTERIOR SOUTHCENTRAL
TONIGHT AND SPREADING TOWARD THE COAST THURSDAY MORNING. THIS
PROCESS WILL CONTINUE ON THURSDAY AS THE UPPER LEVEL LOW MOVES
TO A POSITION SOUTH OF THE GULF...SO THAT ALL OF SOUTHCENTRAL
(INCLUDING KODIAK ISLAND) WILL DRY OUT BY THURSDAY NIGHT. FRIDAY
LOOKS LIKE A NICE DAY ACROSS THE REGION AS HIGH PRESSURE WILL
BUILD FROM THE BERING SEA TO INTERIOR ALASKA. HOWEVER...MODELS
NOW INDICATE THAT A SHORT-WAVE WILL NOW TRACK BETWEEN THE INTERIOR
RIDGE AND THE NORTHEAST PACIFIC LOW...HEADING FROM THE YUKON
SOUTHWESTWARD ACROSS THE COPPER BASIN TO ANCHORAGE AND THE KENAI
PENINSULA. IF SO...SATURDAY WILL BE A RAINY DAY. HOWEVER...CONFIDENCE
IN THE TRACKING OF THIS FEATURE IS LOW...SO WILL WILL HAVE TO
REEVALUATE THIS WITH THE NEXT FORECAST TONIGHT. EVEN IF IT DOES
MATERIALIZE IT LOOKS LIKE IT SHOULD CLEAR BACK OUT BY SUNDAY.

SOUTHWEST ALASKA...AREAS OF RAIN WILL CONTINUE THROUGH TONIGHT
AS THE LOW PASSES ACROSS BRISTOL BAY AND ACROSS THE ALASKA PENINSULA.
RAIN SHOWERS WILL THEN END FROM NORTH TO SOUTH ON THURSDAY AS THE
SYSTEM MOVES DOWN INTO THE GULF AND NORTHEAST PACIFIC. HIGH PRESSURE
WILL THEN BUILD IN AND PROVIDE A NICE WEEKEND. AN ALEUTIAN LOW WILL
APPROACH THE REGION BY MONDAY...BRINGING A RETURN TO CLOUDS AND RAIN.

BERING SEA/ALEUTIANS...THE LOW FORMING SOUTHWEST OF THE ALEUTIANS
HAS GOOD UPPER SUPPORT AND WILL CONTINUE TO STRENGTHEN AS IT
APPROACHES THE WESTERN ALEUTIANS TONIGHT AND THURSDAY. WITH A RIDGE
TO THE EAST THE SURFACE PRESSURE GRADIENT WILL BE TIGHT...SO EXPECT
GALE FORCE WINDS TO ACCOMPANY THE STORM. THE LOW WILL QUICKLY MATURE
INTO A VERTICALLY STACKED CUT-OFF LOW WITH LITTLE IN THE WAY OF
STEERING FLOW. THUS..THE LOW WILL STALL SOUTH OF SHEMYA THURSDAY
NIGHT AND THEN BEGIN A SLOW EASTWARD TRACK ALONG THE ALEUTIANS
THIS WEEKEND AS THE FLOW BECOMES A LITTLE MORE PROGRESSIVE.

.LONG TERM FORECAST...CONFIDENCE IN THE MEDIUM RANGE IS QUITE
LOW DUE TO LARGE MODEL DIFFERENCES AND RUN-TO-RUN INCONSISTENCIES.
AN ENSEMBLE APPROACH IS POINTING TOWARD A HIGH AMPLITUDE TROUGH
CENTERED AROUND 160W. THIS WOULD FOCUS STORM SYSTEMS SOUTH OF THE
ALASKA PENINSULA AND INTO THE GULF...PRODUCING WET AND COOL
CONDITIONS OVER MAINLAND ALASKA.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALE WARNING...175 176.
FIRE WEATHER...NONE.

SEB SEP 09

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 4:00 PM AKDTGale WarningAFC60 hr
Sep 2, 4:00 PM AKDTGale WarningAFC12 hr
Sep 2, 4:00 PM AKDTSmall Craft AdvisoryAFC48 hr
Sep 3, 4:00 AM AKDTGale WarningAFC24 hr
Sep 3, 4:00 AM AKDTGale WarningAFC48 hr
Sep 3, 4:00 AM AKDTSmall Craft AdvisoryAFC36 hr
Sep 3, 4:00 AM AKDTSmall Craft AdvisoryAFC12 hr
Sep 3, 5:16 AM AKDTDense Fog AdvisoryAFC5 hr

Nearby

Gale Warnings in Alaska, 2009Every gale warning in 2009

Sources

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