Gale Warning 316, NWS Anchorage, AK

586 
FZAK62 PAFC 162304
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
304 PM AKDT SAT APR 16 2016

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.

PKZ499-171400-
304 PM AKDT SAT APR 16 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 971 MB LOW NEAR 52N 168E WILL MOVE TO 52N 176E SUN AFTERNOON 
AT 982 MB THEN DISSIPATE SUN EVENING. AN ASSOCIATED FRONT OVER 
THE CENTRAL BERING WILL WEAKEN AS IT MOVES TO THE NORTHERN TO
EASTERN BERING THROUGH SUN NIGHT. A 984 MB LOW WILL FORM NEAR 55N
174W SUN MORNING THEN TRACK TO 57N 177E SUN NIGHT.

$$

PKZ411-171400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
304 PM AKDT SAT APR 16 2016

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...SE WIND 25 TO 40 KT. SEAS 13 TO 20 FT. RAIN AND SNOW.
.SUN...E WIND 20 TO 35 KT. SEAS 12 TO 18 FT. RAIN AND SNOW.
.SUN NIGHT...N TO E WIND 20 TO 35 KT. SEAS 11 TO 19 FT. SNOW.
.MON...SE WIND 10 TO 25 KT. SEAS 8 TO 16 FT.
.MON NIGHT...E WIND 10 TO 20 KT. SEAS 6 TO 10 FT.
.TUE THROUGH THU...NE WIND 10 TO 25 KT. SEAS 6 TO 11 FT.

$$

PKZ412-171400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
304 PM AKDT SAT APR 16 2016

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...SE WIND 25 TO 40 KT. SEAS 9 TO 14 FT. SNOW AND RAIN.
.SUN...E WIND 20 TO 35 KT. SEAS 10 TO 18 FT. SNOW AND RAIN.
.SUN NIGHT...E WIND 20 TO 35 KT BECOMING SE 10 TO 25 KT AFTER
MIDNIGHT. SEAS 10 TO 17 FT. RAIN AND SNOW.
.MON...E WIND 10 TO 20 KT. SEAS 9 TO 14 FT.
.MON NIGHT...E WIND 10 TO 20 KT. SEAS 6 TO 9 FT.
.TUE THROUGH THU...NE WIND 15 TO 30 KT. SEAS 5 TO 10 FT.

$$

PKZ413-171400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
304 PM AKDT SAT APR 16 2016

...GALE WARNING TONIGHT...

.TONIGHT...SE WIND 25 TO 40 KT. SEAS 9 TO 16 FT. RAIN AND SNOW.
.SUN...S WIND 15 TO 30 KT BECOMING SW UP TO 20 KT IN THE
AFTERNOON. SEAS 9 TO 14 FT. RAIN.
.SUN NIGHT...S WIND 10 TO 15 KT. SEAS 8 TO 12 FT.
.MON...SE WIND 10 KT. SEAS 6 TO 11 FT.
.MON NIGHT...E WIND UP TO 15 KT. SEAS 7 FT.
.TUE THROUGH THU...NE WIND UP TO 15 KT. SEAS 4 TO 7 FT.

$$

PKZ414-171400-
BERING SEA OFFSHORE EAST OF 171W-
304 PM AKDT SAT APR 16 2016

...GALE WARNING SUNDAY...

.TONIGHT...SE WIND 15 TO 30 KT. SEAS 3 TO 8 FT.
.SUN...SE WIND 20 TO 35 KT. SEAS 7 TO 12 FT. RAIN.
.SUN NIGHT...SE WIND 15 TO 30 KT. SEAS 7 TO 12 FT. RAIN AND SNOW.
.MON...E WIND 10 TO 25 KT. SEAS 7 TO 10 FT.
.MON NIGHT...E WIND 10 TO 25 KT. SEAS 8 FT.
.TUE THROUGH THU...E WIND 10 TO 25 KT. SEAS 5 TO 9 FT.

$$

393 
FZAK62 PAFC 171132
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
332 AM AKDT SUN APR 17 2016

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.

PKZ499-180130-
332 AM AKDT SUN APR 17 2016
.SYNOPSIS FOR CENTRAL BERING SEA...

A 975 MB LOW NEAR 53N 172E WILL DISSIPATE THIS EVENING NEAR 52N
179E. AN ASSOCIATED FRONT OVER THE CENTRAL BERING WILL WEAKEN AS
IT MOVES TO THE NORTHERN AND EASTERN BERING THROUGH MON NIGHT. A
DEVELOPING 984 MB LOW NEAR 55N 175W WILL MOVE TO 56N 169E AT 987
MB BY MON NIGHT.

$$

PKZ411-180130-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
332 AM AKDT SUN APR 17 2016

...GALE WARNING THROUGH TONIGHT...

.TODAY...E WIND 15 TO 35 KT. SEAS 12 TO 17 FT. RAIN AND SNOW.
.TONIGHT...N TO E WIND 15 TO 35 KT. SEAS 10 TO 17 FT. RAIN AND
SNOW.
.MON...E WIND 10 TO 25 KT. SEAS 9 TO 13 FT.
.MON NIGHT...E WIND UP TO 20 KT. SEAS 6 TO 9 FT.
.TUE THROUGH THU...NE WIND 10 TO 25 KT. SEAS 6 TO 11 FT.

$$

PKZ412-180130-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
332 AM AKDT SUN APR 17 2016

...GALE WARNING THROUGH TONIGHT...

.TODAY...E WIND 25 TO 40 KT. SEAS 9 TO 17 FT. RAIN AND SNOW.
.TONIGHT...SE WIND 25 TO 40 KT DIMINISHING TO 10 TO 25 KT AFTER
MIDNIGHT. SEAS 9 TO 14 FT. RAIN AND SNOW.
.MON...E WIND 10 TO 20 KT. SEAS 7 TO 12 FT.
.MON NIGHT...E WIND UP TO 20 KT. SEAS 5 TO 9 FT.
.TUE THROUGH THU...NE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$

PKZ413-180130-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
332 AM AKDT SUN APR 17 2016

.TODAY...S WIND 15 TO 30 KT DIMINISHING TO 10 TO 20 KT IN THE
AFTERNOON. SEAS 8 TO 13 FT. RAIN.
.TONIGHT...S WIND 10 TO 15 KT. SEAS 7 TO 11 FT.
.MON...SE WIND 10 KT. SEAS 7 TO 11 FT.
.MON NIGHT...E WIND UP TO 15 KT. SEAS 7 FT.
.TUE THROUGH THU...NE WIND UP TO 15 KT. SEAS 3 TO 7 FT.

$$

PKZ414-180130-
BERING SEA OFFSHORE EAST OF 171W-
332 AM AKDT SUN APR 17 2016

...GALE WARNING TODAY...

.TODAY...SE WIND 20 TO 35 KT. SEAS 7 TO 12 FT. RAIN.
.TONIGHT...SE WIND 15 TO 30 KT. SEAS 7 TO 12 FT. RAIN.
.MON...SE WIND 10 TO 25 KT. SEAS 8 FT. RAIN.
.MON NIGHT...SE WIND 10 TO 25 KT. SEAS 6 TO 9 FT.
.TUE THROUGH THU...E WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$

860 
FZAK62 PAFC 172254
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
254 PM AKDT SUN APR 17 2016

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.

PKZ499-181345-
254 PM AKDT SUN APR 17 2016
.SYNOPSIS FOR CENTRAL BERING SEA...

A 983 MB LOW AT 56N 175W MOVES TO 56N 168E AT 989 MB TUE
AFTERNOON. THE ASSOCIATED FRONT MOVES OVER THE ALEUTIANS TO THE ALASKA
PENINSULA BY TUE AFTERNOON. A NORTH PACIFIC LOW MOVES TO 48N 167E
AT 996 MB MON NIGHT THEN CONTINUES TO 48N 175W AT 984 MB TUE
AFTERNOON.

$$

PKZ411-181345-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
254 PM AKDT SUN APR 17 2016

.TONIGHT...VARIABLE WIND 15 KT...EXCEPT NE 25 KT NORTH OF 57N.
SEAS 10 TO 16 FT. RAIN AND SNOW.
.MON...S TO E WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.MON NIGHT...E WIND 10 TO 20 KT. SEAS 8 FT.
.TUE...E WIND UP TO 15 KT. SEAS 6 FT.
.TUE NIGHT...NE WIND UP TO 15 KT. SEAS 5 FT.
.WED THROUGH THU...E WIND UP TO 20 KT. SEAS 5 TO 8 FT.
.FRI...NE WIND 15 TO 25 KT. SEAS 6 FT.

$$

PKZ412-181345-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
254 PM AKDT SUN APR 17 2016

...GALE WARNING TONIGHT...

.TONIGHT...E WIND 20 TO 35 KT BECOMING SE 10 TO 25 KT BY LATE
EVENING. SEAS 8 TO 13 FT. RAIN AND SNOW.
.MON...E WIND 10 TO 20 KT. SEAS 7 TO 12 FT.
.MON NIGHT...E WIND 10 TO 20 KT. SEAS 4 TO 9 FT.
.TUE...E WIND UP TO 20 KT. SEAS 3 TO 6 FT.
.TUE NIGHT...E WIND 10 TO 20 KT. SEAS 5 FT.
.WED THROUGH FRI...NE WIND 10 TO 25 KT. SEAS 5 TO 9 FT.

$$

PKZ413-181345-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
254 PM AKDT SUN APR 17 2016

.TONIGHT...S WIND 10 TO 15 KT. SEAS 8 TO 11 FT.
.MON...SE WIND 10 KT. SEAS 8 TO 11 FT.
.MON NIGHT...SE WIND 10 TO 15 KT. SEAS 8 FT.
.TUE...E WIND 10 KT. SEAS 5 FT.
.TUE NIGHT...NE WIND 10 KT. SEAS 5 FT.
.WED...SW WIND 10 KT. SEAS 5 FT.
.THU...NW WIND UP TO 15 KT. SEAS 6 FT.
.FRI...N WIND 10 TO 20 KT. SEAS 5 TO 8 FT.

$$

PKZ414-181345-
BERING SEA OFFSHORE EAST OF 171W-
254 PM AKDT SUN APR 17 2016

...GALE WARNING TONIGHT...

.TONIGHT...SE WIND 20 TO 35 KT...EXCEPT BECOMING VARIABLE 15 KT S
OF 56N AFTER MIDNIGHT. SEAS 7 TO 12 FT. RAIN AND SNOW.
.MON...SE WIND 15 TO 30 KT. SEAS 7 TO 10 FT. RAIN.
.MON NIGHT...SE WIND 10 TO 25 KT. SEAS 6 TO 9 FT.
.TUE...E WIND UP TO 20 KT. SEAS 6 FT.
.TUE NIGHT...E WIND 10 TO 25 KT. SEAS 6 FT.
.WED THROUGH FRI...NE WIND 10 TO 25 KT. SEAS 5 TO 10 FT.

$$

867 
FZAK62 PAFC 181144
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
344 AM AKDT MON APR 18 2016

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.

PKZ499-190130-
344 AM AKDT MON APR 18 2016
.SYNOPSIS FOR CENTRAL BERING SEA...

A FRONT IN THE EASTERN AND NORTHERN BERING SEA WILL WEAKEN IN
PLACE THROUGH TONIGHT. A 987 MB LOW NEAR 56N 177E WILL BECOME A
BROAD COMPLEX LOW OVER THE CENTRAL AND SOUTHERN BERING SEA THROUGH
TUE NIGHT. A FRONT IN THE NORTH PACIFIC TUE WILL CROSS THE ALASKA
PENINSULA AND MOVE INTO THE EASTERN BERING BY TUE NIGHT. 

$$

PKZ411-190130-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
344 AM AKDT MON APR 18 2016

.TODAY...VARIABLE WIND 15 KT. SEAS 9 TO 12 FT.
.TONIGHT...SE WIND 10 TO 15 KT. SEAS 8 FT.
.TUE...NE WIND 10 TO 15 KT. SEAS 6 FT.
.TUE NIGHT...NE WIND 10 KT. SEAS 6 FT.
.WED THROUGH THU...E WIND UP TO 15 KT. SEAS 5 TO 8 FT.
.FRI...NE WIND 15 TO 25 KT. SEAS 6 FT.

$$

PKZ412-190130-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
344 AM AKDT MON APR 18 2016

.TODAY...E WIND 10 TO 15 KT. SEAS 7 TO 12 FT.
.TONIGHT...E WIND 10 TO 20 KT. SEAS 5 TO 8 FT.
.TUE...E WIND 10 TO 20 KT. SEAS 5 TO 8 FT.
.TUE NIGHT...E WIND UP TO 20 KT. SEAS 4 TO 7 FT.
.WED THROUGH FRI...NE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$

PKZ413-190130-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
344 AM AKDT MON APR 18 2016

.TODAY...SE WIND 10 KT. SEAS 7 TO 11 FT.
.TONIGHT...SE WIND 10 KT. SEAS 8 FT.
.TUE...E WIND 10 KT. SEAS 6 FT.
.TUE NIGHT...NE WIND 10 KT. SEAS 5 FT.
.WED THROUGH THU...NW WIND UP TO 15 KT. SEAS 4 TO 7 FT.
.FRI...N WIND 10 TO 20 KT. SEAS 5 TO 8 FT.

$$

PKZ414-190130-
BERING SEA OFFSHORE EAST OF 171W-
344 AM AKDT MON APR 18 2016

.TODAY...SE WIND 15 TO 30 KT. SEAS 6 TO 11 FT. RAIN.
.TONIGHT...SE WIND 10 TO 25 KT. SEAS 8 FT.
.TUE...SE WIND 10 TO 25 KT. SEAS 7 FT.
.TUE NIGHT...E WIND 15 TO 25 KT. SEAS 6 FT.
.WED THROUGH FRI...NE WIND 15 TO 30 KT. SEAS 5 TO 10 FT.

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
426 PM AKDT FRI APR 15 2016

.ANALYSIS AND UPPER LEVELS...

BROAD CYCLONIC FLOW IN THE UPPER LEVELS CONTINUES ACROSS THE GULF
AND THE SOUTHERN MAINLAND. AT THE SURFACE A BROAD TROUGH EXTENDS
FROM A WEAKENING LOW SOUTH OF THE AK PEN TO A WEAKENING FRONT
MOVING TOWARD THE NORTH GULF. SHOWERS WERE EVIDENT ACROSS THE GULF
AND THE COOK INLET REGION. EXCEPT FOR A FEW SHOWERS...SOUTHWEST
ALASKA WAS GENERALLY DRY WITH WEAK OFFSHORE FLOW (NORTHERLY).
SATELLITE IMAGERY SHOWED A DEVELOPING LOW SOUTH OF THE KURIL
ISLANDS WITH ITS ASSOCIATED FRONTAL TROUGH APPROACHING THE FAR
WEST ALEUTIAN ISLANDS. SATELLITE DERIVED WINDS (ASCAT) FROM THIS
MORNING SHOWED SOLID GALES AROUND THE SURFACE LOW AND IN ADVANCE
OF THE FRONT.

&&

.MODEL DISCUSSION...
MODELS OVERALL ARE IN FAIRLY GOOD AGREEMENT THROUGH THE SHORT
TERM. THE HIGHER RESOLUTION NAM WAS OVERALL THE BEST CHOICE FOR
BOTH THE EAST AND WEST DOMAINS. HOWEVER...THE GFS QPF FIELDS WILL
BE USED IN THE WEST.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (DAYS 1 AND 2)...
WE STAY IN THE SAME SYNOPTIC REGIME FOR THE NEXT COUPLE DAYS WITH
AN UPPER LOW SOUTH OF THE GULF. BEYOND A SHORTWAVE AND WEAK FRONT
IN THE GULF TODAY...FORCING IS NEARLY NON-EXISTENT. THE BEST
COVERAGE FOR SHOWERS WILL BE FROM TONIGHT INTO THE EARLY AFTERNOON
TOMORROW AS LOW LEVEL INSTABILITY COMBINES WITH THE WAVE ALOFT.
THIS WILL BRING SHOWERS FROM THE NORTHERN GULF TO WESTERN PRINCE
WILLIAM SOUND. SHOWERS WILL MAKE IT OVER THE MOUNTAINS TO A LESSER
EXTENT INTO THE COOK INLET REGION...AIDED BY DIURNAL INSTABILITY.
THE BEST CHANCE WILL BE ON THE KENAI PENINSULA ON SATURDAY. THE
SHORTWAVE OVERNIGHT INTO THE MORNING HOURS WILL BRING THE MOST
SHOWER COVERAGE...BEYOND THAT FOR THE REMAINDER OF THE DAY AND
SUNDAY SHOWERS WILL BE DIURNALLY FOCUSED ON THE TERRAIN AND MOVE
OFF IN THE EVENING. CLOUDS WILL REMAIN THICK WITH ALMOST TOTAL
COVERAGE UNTIL SATURDAY AFTERNOON WHEN SOME BREAKS WILL BEGIN TO
APPEAR...SUNDAY EVEN MORE SO. WINDS WILL CONTINUE TO BE LIGHT AND
TEMPERATURES ABOVE NORMAL FOR APRIL.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (DAYS 1 AND 2)...
SOUTHWEST ALASKA WILL GENERALLY REMAIN IN A BENIGN PATTERN
THROUGH SUNDAY AS THE LOW SOUTH OF KODIAK MEANDERS EASTWARD THROUGH
THE WEEKEND AND A RIDGE MOVES EASTWARD ALONG THE ALEUTIANS.
SCATTERED SHOWERS THIS AFTERNOON AND EVENING WILL GRADUALLY TAPER
OFF THROUGH THE EVENING AS INSOLATION DIMINISHES. SCATTERED
SHOWERS WILL RETURN TO BRISTOL BAY AND THE MIDDLE KUSKOKWIM VALLEY
TOMORROW AFTERNOON AS DAYTIME HEATING COMBINES WITH A WEAK
SHORTWAVE MOVING IN FROM THE EAST. THIS PATTERN WILL CONTINUE ON
SUNDAY AS A WEAK TROUGH MOVING DOWN FROM THE NORTH INTERACTS WITH
THE REMNANTS OF SATURDAYS WAVE...EXPANDING SHOWERS TO THE
KUSKOKWIM DELTA.

&&

.FIRE WEATHER...
THERE ARE NO SIGNIFICANT FIRE WEATHER CONCERNS OVER THE NEXT COUPLE
OF DAYS.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (DAYS 1 AND 2)...
THE FORECAST FOR THE BERING SEA REMAINS ON TRACK AS THE SHORTWAVE
RIDGE PUSHES EASTWARD AHEAD OF THE STILL DEEPENING 974MB LOW
LOCATED SOUTH OF THE THE KAMCHATKA PENINSULA THIS AFTERNOON. THE
ASSOCIATED FRONT IS MAKING ITS WAY INTO THE WESTERN ALEUTIANS
THIS AFTERNOON AND WINDS OVER THE WESTERN ALEUTIANS AND SOUTHWEST
BERING WILL BE INCREASING TO STORM FORCE AS THE FRONT CONTINUES TO
PUSH NORTHWARD OVERNIGHT. AS THE LOW REACHES PEAK
INTENSITY...WINDS WILL DECREASE SOMEWHAT ALONG THE FRONT BUT IS
STILL EXPECTED TO PRODUCE GALE FORCE WINDS AS IT PUSHES THROUGH
THE REGION THROUGH SUNDAY.

&&

.LONG TERM FORECAST (DAYS 3 THROUGH 7)...
WE WILL SEE A FAMILIAR PATTERN THROUGH MUCH OF NEXT WEEK WITH A
BROAD AREA OF LOW PRESSURE OVER THE BERING AND RIDGING OVER THE
EASTERN PART OF THE STATE. THIS WILL KEEP MOST OF THE ACTIVITY IN
AREAS AROUND THE BERING AND THE NORTH GULF COAST. THE MODELS ARE
IN DECENT AGREEMENT WITH THIS OVERALL PATTERN BUT ARE STRUGGLING
WITH THE INDIVIDUAL LOWS AS THEY MOVE THROUGH. THIS WILL PLAY A
FACTOR FOR WHEN STRONGER WINDS WILL MOVE INTO THE BERING.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...STORM WARNING...178.
         GALE WARNING...172 173 174 175 176 177 185.

&&

SYNOPSIS AND MODEL DISCUSSION...BC
SOUTHCENTRAL ALASKA...ML
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...RF
LONG TERM...DK