Alert archive / Alaska / Gale Warnings in 2009

Gale Warning 534, NWS Anchorage, AK

August 29, 2009

NWS Anchorage, AK issued this gale warning at Aug 29, 2009, 4:00 AM AKDT. It was in force for 48 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, 2009, 4:00 AM AKDT (12:00 UTC)
Expired
Aug 31, 2009, 4:00 AM AKDT
In force
48 hr
Issued by
NWS Anchorage, AK

The text

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

000 
FZAK62 PAFC 291136
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT SAT AUG 29 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.

PKZ499-300200-
400 AM AKDT SAT AUG 29 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A RIDGE OF HIGH PRESSURE OVER THE CENTRAL ALEUTIANS MOVES EASTWARD
THROUGH THE WEEKEND. A WEATHER FRONT MOVES INTO THE WESTERN BERING 
SUNDAY MORNING AND INTO THE CENTRAL BERING LATE SUNDAY NIGHT.

$$

PKZ411-300200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT SAT AUG 29 2009

...GALE WARNING TONIGHT AND SUNDAY...

.TODAY...S WIND 20 KT. SEAS 7 FT. AREAS OF FOG. 
.TONIGHT...S WIND INCREASING TO 35 KT. SEAS BUILDING TO 14 FT. AREAS
OF FOG. 
.SUN...SW WIND 40 KT. SEAS 17 FT. PATCHY FOG. RAIN.
.SUN NIGHT...SW WIND 30 KT. SEAS 15 FT. 
.MON...SW WIND 25 KT. SEAS 12 FT. 
.TUE...NW WIND 15 KT. SEAS 9 FT. 
.WED...W WIND 20 KT. SEAS 6 FT.  

$$

PKZ412-300200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT SAT AUG 29 2009

...GALE WARNING SUNDAY...

.TODAY...W WIND 20 KT. SEAS 6 FT. PATCHY FOG. 
.TONIGHT...SW WIND 25 KT. SEAS 9 FT. AREAS OF FOG. 
.SUN...SW WIND 40 KT. SEAS 15 FT. AREAS OF FOG. 
.SUN NIGHT...SW WIND 35 KT. SEAS 16 FT. 
.MON...SW WIND 25 KT. SEAS 14 FT. 
.TUE...W WIND 20 KT. SEAS 10 FT. 
.WED...W WIND 20 KT. SEAS 7 FT.  

$$

PKZ413-300200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT SAT AUG 29 2009

...GALE WARNING SUNDAY...

.TODAY...W WIND 15 KT. SEAS 4 FT. PATCHY FOG. 
.TONIGHT...SW WIND 20 KT. SEAS 8 FT. AREAS OF FOG. 
.SUN...SW WIND 35 KT. SEAS 12 FT. PATCHY FOG. 
.SUN NIGHT...SW WIND 35 KT. SEAS 14 FT. 
.MON...SW WIND 30 KT. SEAS 13 FT. 
.TUE...W WIND 20 KT. SEAS 10 FT. 
.WED...W WIND 15 KT. SEAS 6 FT.  

$$

PKZ414-300200-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT SAT AUG 29 2009

.TODAY...NW WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.TONIGHT...W WIND 20 KT. SEAS 5 FT. PATCHY FOG. 
.SUN...W WIND 20 KT BECOMING SW 30 KT IN THE AFTERNOON. SEAS 10 FT.
PATCHY FOG. 
.SUN NIGHT...SW WIND 30 KT. SEAS 12 FT. 
.MON...SW WIND 30 KT. SEAS 13 FT. 
.TUE...SW WIND 25 KT. SEAS 12 FT. 
.WED...W WIND 15 KT. SEAS 7 FT.  

$$
5 follow-up statements
000 
FZAK62 PAFC 292302
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT SAT AUG 29 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.

PKZ499-301400-
400 PM AKDT SAT AUG 29 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A RIDGE OF HIGH PRESSURE OVER THE CENTRAL ALEUTIANS MOVES EASTWARD
THROUGH SUNDAY. A WEATHER FRONT MOVES INTO THE WESTERN BERING 
TONIGHT AND WEAKENS AS IT MOVES INTO THE CENTRAL BERING MONDAY.
$$

PKZ411-301400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT SAT AUG 29 2009

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...S WIND 20 KT INCREASING TO 35 KT AFTER MIDNIGHT. SEAS
BUILDING TO 11 FT. AREAS OF FOG. 
.SUN...S WIND 35 KT. SEAS 14 FT. PATCHY FOG. RAIN.
.SUN NIGHT...SW WIND 30 KT. SEAS 15 FT. 
.MON...SW WIND 25 KT. SEAS 12 FT. 
.MON NIGHT...W WIND 20 KT. SEAS 10 FT. 
.TUE...NW WIND 15 KT. SEAS 8 FT. 
.WED AND THU...W WIND 15 KT. SEAS 7 FT. 

$$

PKZ412-301400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT SAT AUG 29 2009

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 7 FT. AREAS OF FOG. 
.SUN...SW WIND 35 KT. SEAS BUILDING TO 14 FT. AREAS OF FOG. 
.SUN NIGHT...SW WIND 35 KT. SEAS 15 FT. RAIN.
.MON...SW WIND 25 KT. SEAS 15 FT. 
.MON NIGHT...SW WIND 20 KT. SEAS 12 FT. 
.TUE...W WIND 15 KT. SEAS 9 FT. 
.WED AND THU...W WIND 15 KT. SEAS 7 FT. 

$$

PKZ413-301400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT SAT AUG 29 2009

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...SW WIND 20 KT. SEAS 5 FT. PATCHY FOG. 
.SUN...SW WIND 35 KT. SEAS 11 FT. PATCHY FOG. 
.SUN NIGHT...SW WIND 35 KT. SEAS 13 FT. PATCHY FOG. 
.MON AND MON NIGHT...SW WIND 25 KT. SEAS 12 FT. 
.TUE...W WIND 15 KT. SEAS 8 FT. 
.WED AND THU...W WIND 15 KT. SEAS 6 FT. 

$$

PKZ414-301400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT SAT AUG 29 2009

.TONIGHT...W WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.SUN...SW WIND 25 KT. SEAS 7 FT. PATCHY FOG. 
.SUN NIGHT...SW WIND 30 KT. SEAS 11 FT. PATCHY FOG. 
.MON...SW WIND 30 KT. SEAS 13 FT. 
.MON NIGHT AND TUE...SW WIND 25 KT. SEAS 11 FT. 
.WED AND THU...W WIND 15 KT. SEAS 7 FT. 

$$
000 
FZAK62 PAFC 301114
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT SUN AUG 30 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.

PKZ499-310200-
400 AM AKDT SUN AUG 30 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A RIDGE OF HIGH PRESSURE OVER THE CENTRAL ALEUTIANS WILL MOVE
OVER SOUTHWEST ALASKA BY SUNDAY NIGHT. A WEATHER FRONT MOVES INTO
THE WESTERN BERING TODAY AND WEAKENS AS IT MOVES INTO THE CENTRAL
BERING MONDAY.

$$

PKZ411-310200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT SUN AUG 30 2009

...GALE WARNING TODAY...

.TODAY...S WIND 35 KT. SEAS 15 FT. PATCHY FOG. RAIN.
.TONIGHT...SW WIND 30 KT. SEAS 15 FT. 
.MON...SW WIND 25 KT. SEAS 12 FT. 
.MON NIGHT...W WIND 20 KT. SEAS 10 FT. 
.TUE...NW WIND 20 KT. SEAS 8 FT. 
.WED...W WIND 20 KT. SEAS 7 FT. 
.THU...W WIND 15 KT. SEAS 6 FT.  

$$

PKZ412-310200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT SUN AUG 30 2009

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW WIND INCREASING TO 35 KT. SEAS BUILDING TO 14 FT. AREAS
OF FOG. 
.TONIGHT...SW WIND 35 KT. SEAS 16 FT. RAIN.
.MON...SW WIND 25 KT. SEAS 15 FT. 
.MON NIGHT...SW WIND 20 KT. SEAS 12 FT. 
.TUE AND WED...W WIND 20 KT. SEAS 8 FT. 
.THU...W WIND 15 KT. SEAS 7 FT.  

$$

PKZ413-310200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT SUN AUG 30 2009

...GALE WARNING THROUGH TONIGHT...

.TODAY...S WIND INCREASING TO 25 TO 35 KT. SEAS BUILDING TO 8 TO 11
FT. PATCHY FOG. 
.TONIGHT...SW WIND 25 TO 35 KT. SEAS 13 FT. PATCHY FOG. 
.MON...SW WIND 25 KT. SEAS 12 FT. PATCHY FOG. RAIN.
.MON NIGHT...SW WIND 20 KT. SEAS 10 FT. 
.TUE...W WIND 15 KT. SEAS 8 FT. 
.WED...W WIND 20 KT. SEAS 7 FT. 
.THU...W WIND 15 KT. SEAS 6 FT.  

$$

PKZ414-310200-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT SUN AUG 30 2009

.TODAY...SW WIND INCREASING TO 25 KT. SEAS BUILDING TO 7 FT. PATCHY
FOG. 
.TONIGHT...SW WIND 30 KT. SEAS 12 FT. PATCHY FOG. 
.MON AND MON NIGHT...SW WIND 25 KT. SEAS 13 FT. PATCHY FOG. 
.TUE...SW WIND 20 KT. SEAS 10 FT. 
.WED AND THU...W WIND 20 KT. SEAS 8 FT. 

$$
000 
FZAK62 PAFC 301807 AAA
OFFALU

OFFSHORE WATERS FORECAST...UPDATE
NATIONAL WEATHER SERVICE ANCHORAGE AK
1005 AM AKDT SUN AUG 30 2009

UPDATED 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.

PKZ499-310200-
400 AM AKDT SUN AUG 30 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A RIDGE OF HIGH PRESSURE OVER THE CENTRAL ALEUTIANS WILL MOVE
OVER SOUTHWEST ALASKA BY SUNDAY NIGHT. A WEATHER FRONT MOVES INTO
THE WESTERN BERING TODAY AND WEAKENS AS IT MOVES INTO THE CENTRAL
BERING MONDAY.

$$

PKZ411-310200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT SUN AUG 30 2009

...GALE WARNING TODAY...

.TODAY...S WIND 35 KT. SEAS 15 FT. PATCHY FOG. RAIN.
.TONIGHT...SW WIND 30 KT. SEAS 15 FT. 
.MON...SW WIND 25 KT. SEAS 12 FT. 
.MON NIGHT...W WIND 20 KT. SEAS 10 FT. 
.TUE...NW WIND 20 KT. SEAS 8 FT. 
.WED...W WIND 20 KT. SEAS 7 FT. 
.THU...W WIND 15 KT. SEAS 6 FT.  

$$

PKZ412-310200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT SUN AUG 30 2009

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW WIND INCREASING TO 35 KT. SEAS BUILDING TO 14 FT. AREAS
OF FOG. 
.TONIGHT...SW WIND 35 KT. SEAS 16 FT. RAIN.
.MON...SW WIND 25 KT. SEAS 15 FT. 
.MON NIGHT...SW WIND 20 KT. SEAS 12 FT. 
.TUE AND WED...W WIND 20 KT. SEAS 8 FT. 
.THU...W WIND 15 KT. SEAS 7 FT.  

$$

PKZ413-310200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT SUN AUG 30 2009

...GALE WARNING THROUGH TONIGHT...

.TODAY...S WIND INCREASING TO 25 TO 35 KT. SEAS BUILDING TO 8 TO 11
FT. PATCHY FOG. 
.TONIGHT...SW WIND 25 TO 35 KT. SEAS 13 FT. PATCHY FOG. 
.MON...SW WIND 25 KT. SEAS 12 FT. PATCHY FOG. RAIN.
.MON NIGHT...SW WIND 20 KT. SEAS 10 FT. 
.TUE...W WIND 15 KT. SEAS 8 FT. 
.WED...W WIND 20 KT. SEAS 7 FT. 
.THU...W WIND 15 KT. SEAS 6 FT.  

$$

PKZ414-310200-
BERING SEA OFFSHORE EAST OF 171W
1005 AM AKDT SUN AUG 30 2009

...GALE WARNING TONIGHT...

.TODAY...SW WIND INCREASING TO 25 KT. SEAS BUILDING TO 7 FT. PATCHY
FOG. 
.TONIGHT...SW WIND 35 KT. SEAS 12 FT. PATCHY FOG. 
.MON AND MON NIGHT...SW WIND 25 KT. SEAS 13 FT. PATCHY FOG. 
.TUE...SW WIND 20 KT. SEAS 10 FT. 
.WED AND THU...W WIND 20 KT. SEAS 8 FT. 

$$
000 
FZAK62 PAFC 302323
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT SUN AUG 30 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.

PKZ499-311400-
400 PM AKDT SUN AUG 30 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A RIDGE OF HIGH PRESSURE OVER THE CENTRAL ALEUTIANS WILL MOVE
OVER THE ALASKA PENINSULA TONIGHT. A WEATHER FRONT WEAKENS AS IT
MOVES FROM THE WESTERN ALEUTIANS TONIGHT TO THE ALASKA PENINSULA
TUESDAY.
$$

PKZ411-311400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT SUN AUG 30 2009

...GALE WARNING TONIGHT...

.TONIGHT...SW WIND 35 KT DIMINISHING TO 25 KT AFTER MIDNIGHT. SEAS
16 FT SUBSIDING TO 13 FT. RAIN.
.MON...SW WIND 25 KT. SEAS 12 FT. 
.MON NIGHT...W WIND 20 KT. SEAS 11 FT. RAIN.
.TUE...NW WIND 15 KT. SEAS 8 FT. 
.TUE NIGHT AND WED...W WIND 20 KT. SEAS 7 FT. 
.THU AND FRI...W WIND 15 KT. SEAS 6 FT. 

$$

PKZ412-311400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT SUN AUG 30 2009

...GALE WARNING TONIGHT...

.TONIGHT...SW WIND 40 KT. SEAS 13 TO 17 FT. PATCHY FOG. RAIN.
.MON AND MON NIGHT...SW WIND 25 KT. SEAS 13 FT. 
.TUE THROUGH WED...W WIND 20 KT. SEAS 9 FT. 
.THU...NW WIND 15 KT. SEAS 7 FT.
.FRI...W WIND 20 KT. SEAS 7 FT.  

$$

PKZ413-311400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT SUN AUG 30 2009

...GALE WARNING TONIGHT...

.TONIGHT...WEST OF 175 W...SW WIND 35 KT. SEAS 14 FT. EAST OF 175
W...SW WIND 25 KT INCREASING TO 35 KT DURING THE LATE EVENING.  SEAS
8 FT BUILDING TO 12 FT. PATCHY FOG. RAIN.
.MON AND MON NIGHT...SW WIND 25 KT. SEAS 10 FT. PATCHY FOG. RAIN.
.TUE THROUGH THU...W WIND 20 KT. SEAS 8 FT. 
.FRI...VARIABLE WIND 10 KT. SEAS 5 FT.  

$$

PKZ414-311400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT SUN AUG 30 2009

...GALE WARNING TONIGHT AND MONDAY...

.TONIGHT...SW WIND 25 KT INCREASING TO 35 KT DURING THE LATE EVENING.
SEAS 9 FT BUILDING TO 13 FT. PATCHY FOG. RAIN.
.MON...SW WIND 35 KT DIMINISHING TO 25 KT DURING THE AFTERNOON. SEAS
13 FT. PATCHY FOG. RAIN.
.MON NIGHT...SW WIND 25 KT. SEAS 12 FT. PATCHY FOG. RAIN.
.TUE...SW WIND 25 KT. SEAS 11 FT. 
.TUE NIGHT THROUGH THU...W WIND 20 KT. SEAS 9 FT. 
.FRI...W WIND 15 KT. SEAS 7 FT.  

$$
000 
FZAK62 PAFC 311114
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT MON AUG 31 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.

PKZ499-010200-
400 AM AKDT MON AUG 31 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A WEATHER FRONT WEAKENS AS IT MOVES FROM THE CENTRAL ALEUTIANS TODAY
TO THE SOUTHWEST COAST TUESDAY NIGHT.

$$

PKZ411-010200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT MON AUG 31 2009

.TODAY...SW WIND 25 KT. SEAS 11 FT. 
.TONIGHT...W WIND 20 KT. SEAS 10 FT. 
.TUE...NW WIND 20 KT. SEAS 8 FT. 
.TUE NIGHT...W WIND 20 KT. SEAS 7 FT. 
.WED...W WIND 20 KT. SEAS 7 FT. 
.THU AND FRI...W WIND 15 KT. SEAS 5 FT. 

$$

PKZ412-010200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT MON AUG 31 2009

.TODAY...SW WIND 25 KT. SEAS 11 TO 15 FT. 
.TONIGHT...SW WIND 20 KT. SEAS 12 FT. 
.TUE...W WIND 15 KT. SEAS 9 FT. RAIN.
.TUE NIGHT...W WIND 25 KT. SEAS 8 FT. 
.WED AND THU...NW WIND 20 KT. SEAS 7 FT. 
.FRI...VARIABLE WIND 10 KT. SEAS 5 FT.  

$$

PKZ413-010200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT MON AUG 31 2009

.TODAY...SW WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS 
12 FT. PATCHY FOG. RAIN.
.TONIGHT...SW WIND 25 KT. SEAS 11 FT. 
.TUE...W WIND 15 KT. SEAS 8 FT. 
.TUE NIGHT AND WED...W WIND 20 KT. SEAS 7 FT. 
.THU...NW WIND 15 KT. SEAS 7 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 5 FT.  

$$

PKZ414-010200-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT MON AUG 31 2009

...GALE WARNING TODAY...

.TODAY...SW WIND 35 KT. SEAS 14 FT. PATCHY FOG. RAIN.
.TONIGHT...SW WIND 25 KT. SEAS 13 FT. PATCHY FOG. 
.TUE...SW WIND 20 KT. SEAS 10 FT. PATCHY FOG. 
.TUE NIGHT AND WED...W WIND 20 KT. SEAS 8 FT. 
.THU...NW WIND 20 KT. SEAS 7 FT.
.FRI...NW WIND 15 KT. SEAS 6 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 Aug 28, 2:00 PM AKDT, 14 hours earlier.

Area forecast discussion, Aug 28, 2:00 PM AKDT, 14 hours before
AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
200 PM AKDT FRI AUG 28 2009

.ANALYSIS AND UPPER LEVELS...
UPPER LEVEL PATTERN REMAINS UNCHANGED WITH A NEUTRALLY TILTED LONG
WAVE UPPER TROUGH LOCATED OVER CENTRAL ALASKA AND THE NORTHWESTERN
GULF. MAIN FEATURES OF INTEREST INCLUDE THE MULTIPLE STRONG SHORT
WAVES ROTATING AROUND THE BASE OF THE UPPER TROUGH IN THE GULF. UPPER
LEVEL RIDGE IS BUILDING OVER THE CENTRAL AND WESTERN BERING SEA WHILE
ANOTHER COLD CORE UPPER LEVEL LOW IS ROTATING ACROSS THE SEA OF
OKHOTSK...WEST OF THE KAMCHATKA PENINSULA.

AT THE SURFACE...
TWO SURFACE LOWS ARE MERGING SOUTH OF KODIAK THIS AFTERNOON AND WILL
BECOME ONE LARGE LOW THAT WILL MEANDER ABOUT THE GULF THROUGH THE
WEEKEND AS IT SLOWLY WEAKENS. HIGH PRESSURE IS BUILDING OVER THE
NORTHERN PACIFIC AND SPREADING ITS INFLUENCE INTO THE BERING SEA.
WIDESPREAD STRATUS AND FOG WILL REMAIN A THREAT ACROSS THIS REGION.

.MODEL DISCUSSION...MODELS ARE IN REASONABLE AGREEMENT CONCERNING THE
OVERALL PATTERN BUT DIFFER IN THE DETAILS. ALL MODELS SWING THE NEW
LOW TOWARD THE CENTRAL GULF SATURDAY AFTERNOON BEFORE WEAKENING IT
AND DROPPING IT SOUTHEAST OUT OF OUR DOMAIN BY EARLY MONDAY MORNING.
THE DIFFERENCES ARISE WITH THE STRENGTH OF THE LOW AND HOW FAR IT
MOVES NORTH BEFORE GETTING CAUGHT UP IN THE UPPER FLOW AND SHIFTING
SOUTHEAST. WE FEEL THAT THE STRONGER AND MORE NORTH SOLUTION
ADVERTISED BY THE NAM IS THE BEST AT THIS TIME. MAIN EDITS WILL BE
CONCERNING THE SHORT TERM EFFECTS OF THIS SLIGHT CHANGE FROM PREVIOUS
RUNS...WHILE MID AND LONG RANGE FORECAST WILL BE LEFT AS IS.

.SHORT TERM FORECAST...

.SOUTHCENTRAL ALASKA...WIDESPREAD RAIN ASSOCIATED WITH THE FIRST OF
TWO SHORTWAVES TO CROSS THE COAST TODAY. WINDS BEHIND THIS FIRST
OCCLUSION HAVE INCREASED TO MINIMUM GALES ACROSS MOST OF THE COASTAL
WATERS...AND INCREASED THE GAP WINDS TO STRONG WIND CRITERIA FOR
SEVERAL ZONES. A POSSIBLE BARRIER JET FORMED ALONG THE COAST NEAR
CORDOVA WHERE WINDS GUSTS IN EXCESS OF 65 MPH WERE REPORTED FOR 4
HOURS STRAIGHT. WINDS HAVE INCREASED THROUGH PORTAGE VALLEY AND ARE
LIKELY MOVING DOWN TURNAGAIN ARM EARLY THIS AFTERNOON. RAIN WILL
TAPER OFF INLAND BY MORNING AS FLOW ALOFT BECOMES MORE NORTHERLY IN
RESPONSE TO THE LOW SHIFTING FURTHER AWAY. COASTAL ZONES AND THE
COPPER RIVER BASIN WILL HOLD ON TO THE CLOUDS AND MOISTURE THE
LONGEST...BUT BY SUNDAY SHOULD SEE FAIR WEATHER AGAIN WITH SOME
BROKEN MID TO HIGH LEVEL CLOUDS.

A TRANSITORY RIDGE MOVES OVER SOUTHCENTRAL MONDAY AND THEN
SOUTHWESTERLY FLOW ALOFT QUICKLY MOVES IN BEHIND THE RIDGE BY MID
WEEK...BRINGING WITH IT MORE CLOUDS AND THE CHANCE FOR RAIN.

.SOUTHWEST ALASKA...
MOSTLY CLEAR SKIES AND SEASONAL TEMPERATURES PREVAILING FOR THE
SOUTHWEST INTERIOR TODAY. SOME CLOUDS AND FOG ARE BUTTING UP AGAINST
THE ALEUTIAN MOUNTAINS BUT OTHERWISE A BEAUTIFUL START TO THE WEEKEND
FOR MOST OF THE SOUTHWEST. WHILE THE INTERIOR SHOULD REMAIN CLEAR
THROUGH SATURDAY...ONSHORE FLOW WILL RETURN LOW CLOUDS AND FOG ALONG
THE COAST ESPECIALLY THE KUSKOKWIM DELTA AND ALASKA PENINSULA. HIGH
CLOUDS WILL RETURN TO THE KUSKOKWIM VALLEY TOMORROW NIGHT WITH SOME
SHOWERS POSSIBLE SUNDAY AS THE MOISTURE MOVES FURTHER INLAND. BY
EARLY NEXT WEEK...THE RIDGE WILL SHIFT EAST AND ANOTHER LONG WAVE
TROUGH WILL MOVE OVER THE CENTRAL BERING SEA RESULTING IN A LONG
FETCH OF MOISTURE FEEDING THE COASTAL ZONES. MOSTLY CLOUDY SKIES AND
NUMEROUS SHOWERS UNDER THE UPPER TROUGH SHOULD PREVAIL THROUGH THE
REMAINDER OF THE WEEK.

.BERING SEA/ALEUTIANS...
THE ACTIVE PATTERN ACROSS OUR DOMAIN WILL BRING PERIODS OF STRATUS
AND FOG...FOLLOWED BY A GALE FORCE FRONT AND THEN SHOWERS ON THE
BACKSIDE. THAT IS THE FORECAST FOR THE BERING SEA FOR THE NEXT 6 DAYS
IN A NUTSHELL. WIDESPREAD FOG AND STRATUS WILL PREVAIL UNTIL A FRONT
ASSOCIATED WITH THE SEA OF OKHOTSK LOW MOVES ACROSS THE WESTERN
ALEUTIANS DURING THE WEEKEND. THIS FRONT WILL WEAKEN AS IT MOVES
TOWARD THE CENTRAL AND EASTERN ALEUTIANS EARLY NEXT WEEK. THE MAIN
BAND OF MOISTURE MOVES INTO BRISTOL BAY AND SOUTHCENTRAL ALASKA
MIDWEEK WHILE WIDESPREAD SHOWERS DEVELOP ON THE BACKSIDE OF THE LOW
UNDER THE LARGE UPPER TROUGH.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...FLOOD WATCH ZONE 141.
MARINE...GALE WARNING 120 155 170 176 411 412.
FIRE WEATHER...NONE.

AB AUG 09

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 4:00 PM AKDTGale WarningAFC60 hr
Aug 28, 4:00 PM AKDTGale WarningAFC48 hr
Aug 28, 4:00 PM AKDTGale WarningAFC12 hr
Aug 28, 4:00 PM AKDTSmall Craft AdvisoryAFC12 hr
Aug 28, 4:00 PM AKDTSmall Craft AdvisoryAFC12 hr
Aug 29, 4:00 AM AKDTGale WarningAFC60 hr
Aug 29, 4:00 AM AKDTSmall Craft AdvisoryAFC8 hr
Aug 29, 4:00 AM AKDTSmall Craft AdvisoryAFC3 days
Aug 29, 12:10 PM AKDTGale WarningAFC4 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.