Gale Warning 363, NWS Anchorage, AK

Issued

Apr 18, 2016, 3:01 PM AKDT (23:01 UTC)

Expired

Apr 19, 2016, 3:45 AM AKDT

In force

13 hr

Issued by

NWS Anchorage, AK

039 
FZAK52 PAFC 182301
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
301 PM AKDT MON APR 18 2016

COASTAL WATERS FORECAST FOR SOUTHWEST ALASKA+BRISTOL BAY+THE
ALASKA PENINSULA WATERS AND THE ALEUTIAN ISLANDS UP TO 100 NM OUT.

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.

PKZ199-191145-
301 PM AKDT MON APR 18 2016
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A BROAD AND COMPLEX 987 MB LOW REMAINS STATIONARY OVER THE
SOUTHERN BERING SEA WHILE SLOWLY WEAKENING THROUGH WED. A 987 MB
LOW FORMS NEAR DUTCH HARBOR WED MORNING AND MOVES 100 NM NORTHWEST
OF DUTCH HARBOR WED AFTERNOON WHILE WEAKENING TO 990 MB.

$$

PKZ150-191145-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
301 PM AKDT MON APR 18 2016

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SE WIND 30 KT BECOMING S 20 KT TOWARD MORNING. 
SEAS 12 FT. RAIN.
.TUE...S WIND 25 KT. SEAS 10 FT. RAIN.
.TUE NIGHT...SE WIND 30 KT. SEAS 11 FT.
.WED AND WED NIGHT...E WIND 30 KT. SEAS 13 FT.
.THU...E WIND 25 KT. SEAS 13 FT.
.FRI...E WIND 20 KT. SEAS 10 FT.
.SAT...SE WIND 20 KT. SEAS 9 FT.

$$

PKZ155-191145-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
301 PM AKDT MON APR 18 2016

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...S WIND 15 KT INCREASING TO 25 KT TOWARD MORNING.
SEAS 11 FT.
.TUE...S WIND 25 KT. SEAS 12 FT. RAIN.
.TUE NIGHT...SE WIND 35 KT. SEAS 16 FT. RAIN.
.WED...E WIND 35 KT. SEAS 16 FT.
.WED NIGHT...E WIND 30 KT. SEAS 16 FT.
.THU...E WIND 25 KT. SEAS 13 FT.
.FRI...NE WIND 20 KT. SEAS 9 FT.
.SAT...S WIND 20 KT. SEAS 8 FT.

$$

PKZ160-191145-
BRISTOL BAY-
301 PM AKDT MON APR 18 2016

...GALE WARNING TONIGHT...

.TONIGHT...E WIND 25 KT IN THE EVENING INCREASING TO 35 KT. 
SEAS 7 FT.
.TUE...E WIND 30 KT BECOMING SE 25 KT IN THE MORNING. SEAS 6 FT.
RAIN.
.TUE NIGHT...SE WIND 25 KT. SEAS 5 FT.
.WED AND WED NIGHT...E WIND 25 KT. SEAS 5 FT.
.THU THROUGH FRI...NE WIND 25 KT. SEAS 5 FT.
.SAT...E WIND 20 KT. SEAS 3 FT.

$$

PKZ165-191145-
PORT HEIDEN TO CAPE SARICHEF-
301 PM AKDT MON APR 18 2016

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SE WIND 15 KT EXCEPT SE 25 KT IN THE EVENING FROM PORT
MOLLER E. SEAS 7 FT.
.TUE...SE WIND 25 KT. SEAS 6 FT.
.TUE NIGHT...E WIND 30 KT. SEAS 7 FT.
.WED...E WIND 30 KT. SEAS 9 FT.
.WED NIGHT...E WIND 25 KT. SEAS 8 FT.
.THU...E WIND 25 KT. SEAS 7 FT.
.FRI...NE WIND 25 KT. SEAS 6 FT.
.SAT...E WIND 15 KT. SEAS 5 FT.

$$

PKZ170-191145-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
301 PM AKDT MON APR 18 2016

...SMALL CRAFT ADVISORY TUESDAY NIGHT...

.TONIGHT...S WIND 15 KT BECOMING SE AFTER MIDNIGHT. SEAS 7 FT.
.TUE...SE WIND 20 KT. SEAS 6 FT.
.TUE NIGHT...SE WIND 20 KT BECOMING NE 30 KT AFTER MIDNIGHT. SEAS
7 FT.
.WED...SE WIND 30 KT. SEAS 9 FT.
.WED NIGHT...SE WIND 20 KT. SEAS 7 FT.
.THU THROUGH FRI...N WIND 20 KT. SEAS 8 FT.
.SAT...N WIND 15 KT. SEAS 5 FT.

$$

PKZ171-191145-
UNALASKA BAY-
301 PM AKDT MON APR 18 2016

.TONIGHT...S WIND 10 KT. SEAS 2 FT.
.TUE...SE WIND 10 KT INCREASING TO 20 KT IN THE AFTERNOON. SEAS
2 FT.
.TUE NIGHT...E WIND 20 KT. SEAS 2 FT. RAIN.
.WED...E WIND 15 KT BECOMING VARIABLE 10 KT IN THE AFTERNOON.
SEAS 2 FT.
.WED NIGHT...NW WIND 10 KT. SEAS 3 FT.
.THU...NE WIND 10 KT. SEAS 3 FT.
.FRI...N WIND 10 KT. SEAS 3 FT.
.SAT...VARIABLE WIND LESS THAN 10 KT. SEAS 3 FT.

$$

PKZ172-191145-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
301 PM AKDT MON APR 18 2016

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...S WIND 15 KT. SEAS 13 FT.
.TUE...SE WIND 20 KT. SEAS 12 FT.
.TUE NIGHT...E WIND 30 KT...EXCEPT NE 20 KT W OF DUTCH HARBOR.
SEAS 13 FT. RAIN.
.WED...SE WIND 30 KT...EXCEPT NW 20 KT W OF DUTCH HARBOR. SEAS 13
FT.
.WED NIGHT...NW WIND 20 KT. SEAS 11 FT.
.THU...N WIND 20 KT. SEAS 12 FT.
.FRI...NW WIND 20 KT. SEAS 8 FT.
.SAT...SW WIND 15 KT. SEAS 7 FT.

$$

PKZ173-191145-
NIKOLSKI TO SEGUAM ISLAND BERING SIDE-
301 PM AKDT MON APR 18 2016

.TONIGHT...VARIABLE WIND 10 KT. SEAS 6 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 5 FT.
.TUE NIGHT...NE WIND 10 KT BECOMING NW AFTER MIDNIGHT. SEAS 5 FT.
.WED...NW WIND 20 KT. SEAS 6 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 5 FT.
.THU THROUGH SAT...N WIND 20 KT. SEAS 7 FT.

$$

PKZ174-191145-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
301 PM AKDT MON APR 18 2016

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 15 FT.
.TUE...SE WIND 15 KT. SEAS 11 FT.
.TUE NIGHT...VARIABLE WIND 10 KT BECOMING NW 15 KT AFTER
MIDNIGHT. SEAS 7 FT.
.WED...NW WIND 20 KT. SEAS 8 FT.
.WED NIGHT...W WIND 15 KT. SEAS 9 FT.
.THU THROUGH FRI...W WIND 25 KT. SEAS 9 FT.
.SAT...NW WIND 15 KT. SEAS 7 FT.

$$

PKZ175-191145-
SEGUAM ISLAND TO ADAK BERING SIDE-
301 PM AKDT MON APR 18 2016

.TONIGHT...VARIABLE WIND 10 KT. SEAS 6 FT.
.TUE...SE WIND 10 KT BECOMING NE TOWARD EVENING. SEAS 5 FT.
.TUE NIGHT...NE WIND 10 KT BECOMING NW AFTER MIDNIGHT. SEAS 4 FT.
.WED...NW WIND 15 KT. SEAS 4 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 4 FT.
.THU THROUGH FRI...NW WIND 15 KT. SEAS 6 FT.
.SAT...N WIND 20 KT. SEAS 6 FT.

$$

PKZ176-191145-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
301 PM AKDT MON APR 18 2016

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 15 FT.
.TUE...VARIABLE WIND 10 KT BECOMING N IN THE AFTERNOON. 
SEAS 9 FT.
.TUE NIGHT...NW WIND 15 KT. SEAS 7 FT.
.WED AND WED NIGHT...W WIND 15 KT. SEAS 9 FT.
.THU THROUGH FRI...W WIND 25 KT. SEAS 9 FT.
.SAT...NW WIND 20 KT. SEAS 8 FT.

$$

PKZ177-191145-
ADAK TO KISKA-
301 PM AKDT MON APR 18 2016

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W WIND 10 KT IN THE EVENING BECOMING VARIABLE. 
SEAS 11 FT.
.TUE...VARIABLE WIND 10 KT BECOMING NW 15 KT IN THE AFTERNOON.
SEAS 7 FT.
.TUE NIGHT...NW WIND 15 KT. SEAS 7 FT.
.WED AND WED NIGHT...W WIND 20 KT. SEAS 10 FT.
.THU...SW WIND 15 KT. SEAS 8 FT.
.FRI...NE WIND 15 KT. SEAS 8 FT.
.SAT...N WIND 20 KT. SEAS 8 FT.

$$

PKZ178-191145-
KISKA TO ATTU-
301 PM AKDT MON APR 18 2016

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT...EXCEPT N 15 KT FROM SHEMYA W.
SEAS 8 FT.
.TUE...NW WIND 20 KT. SEAS 8 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 11 FT.
.WED AND WED NIGHT...W WIND 20 KT. SEAS 10 FT.
.THU...SW WIND 20 KT. SEAS 9 FT.
.FRI...NE WIND 20 KT. SEAS 7 FT.
.SAT...N WIND 25 KT. SEAS 8 FT.

$$

PKZ179-191145-
PRIBILOF ISLANDS NEAR SHORE WATERS-
301 PM AKDT MON APR 18 2016

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SE WIND 20 KT DIMINISHING TO 10 KT AFTER MIDNIGHT.
SEAS 10 FT.
.TUE...E WIND 15 KT. SEAS 7 FT.
.TUE NIGHT...E WIND 20 KT. SEAS 6 FT.
.WED...E WIND 30 KT. SEAS 11 FT.
.WED NIGHT...SE WIND 25 KT. SEAS 10 FT.
.THU THROUGH SAT...NE WIND 20 KT. SEAS 6 FT.

$$

PKZ180-191145-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
301 PM AKDT MON APR 18 2016

...GALE WARNING TONIGHT...

.TONIGHT...E WIND 30 KT...EXCEPT E 35 KT AFTER MIDNIGHT FROM CAPE
NEWENHAM S. SEAS 8 FT.
.TUE...E WIND 30 KT IN THE MORNING BECOMING SE 25 KT. SEAS 8 FT.
.TUE NIGHT...SE WIND 25 KT. SEAS 7 FT.
.WED...E WIND 30 KT. SEAS 8 FT.
.WED NIGHT...E WIND 25 KT. SEAS 7 FT.
.THU THROUGH FRI...NE WIND 25 KT. SEAS 6 FT.
.SAT...NE WIND 15 KT. SEAS 4 FT.

$$

PKZ181-191145-
NORTH AND WEST OF NUNIVAK ISLAND-
301 PM AKDT MON APR 18 2016

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 3 FT. PATCHY FOG.
.TUE...E WIND 25 KT. SEAS IN ICE FREE WATERS 3 FT.
.TUE NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.
.WED AND WED NIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 3 FT.
.THU...E WIND 25 KT. SEAS IN ICE FREE WATERS 2 FT.
.FRI THROUGH SAT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 2 FT.

$$

PKZ185-191145-
SAINT MATTHEW ISLAND WATERS-
301 PM AKDT MON APR 18 2016

...BRISK WIND ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...E WIND 25 KT.
.TUE...E WIND 25 KT. PATCHY FOG.
.TUE NIGHT...E WIND 25 KT.
.WED AND WED NIGHT...E WIND 25 KT.
.THU THROUGH FRI...NE WIND 25 KT.
.SAT...NE WIND 30 KT.

$$

NWS Anchorage, AK wrote its last area forecast discussion before this gale warning went out at Apr 18, 10:14 AM AKDT, 4 hours 47 minutes earlier.

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE ANCHORAGE AK
1014 AM AKDT MON APR 18 2016

.ANALYSIS AND UPPER LEVELS...
A HIGH AMPLITUDE PATTERN REMAINS IN PLACE ACROSS THE REGION. THE
DOMINANT FEATURE ON SATELLITE IMAGERY IS A BROAD UPPER TROUGH
COVERING MUCH OF THE BERING AND ALEUTIANS...WITH A WEAKENING
UPPER LOW JUST SOUTH OF THE CENTRAL ALEUTIANS AND ANOTHER UPPER
LOW DEVELOPING OVER THE WESTERN BERING. A BROAD AREA OF LOW
PRESSURE AT THE SURFACE HAS ALSO SPREAD OVER MUCH OF THE BERING
AND ALEUTIANS...WITH A WEAKENING LOW OVER THE EASTERN ALEUTIANS
AND A LOW CENTERED OVER THE WESTERN BERING. A FRONTAL SYSTEM
ASSOCIATED WITH THE LOW OVER THE EASTERN ALEUTIANS HAS STALLED
OVER THE ALASKA PENINSULA AND SOUTHWEST COAST...WHICH CONTINUES TO
BRING WET AND WINDY CONDITIONS TO THE AREA.

IMMEDIATELY DOWNSTREAM OF THIS LARGE STACKED SYSTEM LIES A NARROW
YET PROGRESSIVE UPPER LEVEL RIDGE...WHICH CURRENTLY RESIDES OVER
MUCH OF THE SOUTHWEST MAINLAND AND WESTERN GULF OF ALASKA.
DIRECTLY EAST OF THE RIDGE IS ANOTHER TROUGH TRACKING EASTWARD
INTO THE SOUTHEASTERN COAST OF ALASKA. A WEAK SURFACE LOW OVER
THE CENTRAL GULF IS SLOWLY DISSIPATING AS THIS UPPER LOW CONTINUES
TO DISSIPATE. HOWEVER A WAVE BRIEFLY TRACKING IN FROM THE EAST
HAS STARTED TO BRING SOME RAIN INTO THE EASTERN PORTIONS OF
PRINCE WILLIAM SOUND AND THE NORTHERN GULF COAST...BEFORE IT
WEAKENS AND TRACKS OFF TO THE NORTH.

&&

.MODEL DISCUSSION...
MODELS REMAIN IN FAIRLY GOOD SYNOPTIC AGREEMENT. THE FRONT OVER
THE ALASKA PENINSULA AND EASTERN BERING WILL SLOWLY PROGRESS
EASTWARD ALONG THE ALEUTIAN RANGE AND INTO THE WESTERN GULF...WITH
THE NORTHERN PORTION OF THE SYSTEM STALLING OVER THE SOUTHWESTERN
COAST BEFORE PUSHING INLAND AND DISSIPATING TUESDAY. OVER THE
GULF...A SURFACE RIDGE WILL BUILD RAPIDLY ALONG THE NORTH GULF
COAST TODAY AND HELP TO INITIATE GAP WINDS THROUGH THE FAVORED
SOUTHEAST-NORTHWEST GAPS ACROSS SOUTHERN ALASKA...PARTICULARLY
SOUTHCENTRAL.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (DAYS 1 AND 2)...
HIGH PRESSURE WILL BUILD INTO SOUTH CENTRAL ALASKA TODAY. A
WEATHER FRONT ASSOCIATED WITH A LOW CENTERED OVER THE EASTERN
ALEUTIANS WILL MOVE INTO KODIAK ISLAND TONIGHT AND TO THE KENAI
PENINSULA ON TUESDAY. THIS FRONT WILL THEN STALL AND EVEN BEGIN TO
MOVE BACK TOWARDS THE SOUTHWEST TUESDAY NIGHT AS HIGH PRESSURE
BUILDS IN OVER INLAND ALASKA. SURFACE HIGH PRESSURE WILL BUILD
ALONG THE GULF COAST AS THE FRONT APPROACHES. THIS WILL INCREASE
THE WINDS THROUGH TURNAGAIN ARM...AS WELL AS OTHER FAVORABLE
LOCATIONS SUCH AS THE KNIK AND COPPER RIVER VALLEYS. PRECIPITATION
WILL GENERALLY BE LIMITED TO KODIAK ISLAND AND THE EASTERN KENAI
PENINSULA...THOUGH SOME SHOWERS SHOULD SNEAK THROUGH TO THE
WESTERN KENAI.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (DAYS 1 AND 2)...
THE FRONT ALONG THE WEST COAST HAS BECOME STATIONARY AND IS
WEAKENING BUT IT IS STILL BRINGING SOME PRECIPITATION TO THE AREA.
AS THAT FRONT CONTINUES TO DECAY RIDGING IS BEGINNING TO BUILD IN
OVER EASTERN ALASKA. THIS COMBINED WITH THE BROAD LOW OVER THE
BERING WILL KEEP SOUTHEAST WINDS OVER THE AREA FOR THE NEXT COUPLE
DAYS. THE STRONGEST OF THOSE WINDS WILL BE ALONG THE COAST AND
ALEUTIAN RANGE. TUESDAY A SHORTWAVE WILL COME UP FROM THE SOUTH
AND REINFORCE THE FRONT BRINGING PRECIPITATION FURTHER INLAND.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (DAYS 1 AND 2)...
THE BROAD AREA OF LOW PRESSURE OVER THE BERING WILL ALLOW FOR
CONTINUED SHOWERS OVER THE ALEUTIANS AND BERING FOR THE NEXT
COUPLE OF DAYS. THERE IS ALSO ENOUGH COLD AIR BEING PULLED DOWN BY
THE LOW FOR THE SHOWERS TO BE A MIX OF RAIN AND SNOW FOR MUCH OF
THE BERING AND THE CENTRAL AND WESTERN ALEUTIANS. FOR THE EASTERN
ALEUTIANS THERE IS ENOUGH WARM SOUTHERLY FLOW TO THINGS PRIMARILY
RAIN.

&&

.LONG TERM FORECAST (DAYS 3 THROUGH 7)...
BY TUESDAY EVENING THE LOW OVER THE ALEUTIANS WILL HAVE ELONGATED
TO A BROAD UPPER LEVEL TROUGH STRETCHING FROM THE KAMCHATKA
PENINSULA...ACROSS THE BERING TO THE ALASKA PENINSULA. UPPER LEVEL
RIDGING WILL EXTEND FROM THE PACIFIC NORTHWEST...THROUGH THE
SOUTHEAST ALASKA PANHANDLE ACROSS THE NORTHERN GULF COAST AND INTO
INTERIOR ALASKA. A SHORTWAVE TROUGH AND ASSOCIATED FRONTAL WAVE
WILL STRETCHING FROM THE BRISTOL BAY AREA ACROSS KODIAK ISLAND
WILL WEAKEN AND SHEAR APART AS A DEVELOPING LOW PRESSURE SYSTEM
SOUTH OF THE EASTERN ALEUTIANS TRACKS EAST TUESDAY NIGHT AND
WEDNESDAY.

THIS GENERAL PATTERN WILL CONTINUE THROUGH THE END OF THE WEEK
WITH A LARGE UPPER LEVEL LOW CENTERED OVER THE WESTERN ALEUTIANS
AND ANOTHER SURFACE LOW SOUTH OF THE ALEUTIANS SPINNING UP NEAR THE
ALASKA PENINSULA FRIDAY. BY SATURDAY THE MEAN UPPER LOW POSITION
WILL SHIFT TO THE CENTRAL ALEUTIANS WITH SEVERAL ADDITIONAL
FRONTAL SYSTEMS ROTATING ACROSS THE ALASKA PENINSULA AND THEN
PROGRESSIVELY FURTHER EAST INTO THE GULF THROUGH EARLY NEXT WEEK.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...GALE WARNING...130 131.

&&

SYNOPSIS AND MODEL DISCUSSION...TP
SOUTHCENTRAL ALASKA...BL
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...DK
LONG TERM...JR

Gale Warnings in Alaska, 2016Every gale warning in 2016

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