Alert archive / Alaska / Gale Warnings in 2016

Gale Warning 307, NWS Anchorage, AK

April 7, 2016

NWS Anchorage, AK issued this gale warning at Apr 7, 2016, 3:33 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
Apr 7, 2016, 3:33 AM AKDT (11:33 UTC)
Expired
Apr 9, 2016, 3:34 AM AKDT
In force
48 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

925 
FZAK62 PAFC 071133
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
333 AM AKDT THU APR 7 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.

PKZ499-080145-
333 AM AKDT THU APR 7 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 989 MB LOW NEAR 56N 168E MOVES TO 55N 167E AT 1000 MB LATE
TONIGHT...THEN MOVES TO 52N 165E AT 1002 MB LATE FRI. A FRONT
ENTERS THE WESTERN AND CENTRAL ALEUTIANS THIS AFTERNOON. A 978 MB
LOW DEVELOPS ALONG THIS FRONT NEAR 52N 169W LATE TONIGHT AND
REMAINS NEARLY STATIONARY THROUGH LATE FRIDAY...MAINTAINING
STRENGTH.

$$

PKZ411-080145-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
333 AM AKDT THU APR 7 2016

.TODAY...S WIND UP TO 15 KT BECOMING VARIABLE IN THE AFTERNOON.
SEAS 9 FT.
.TONIGHT...N WIND 10 TO 20 KT. SEAS 7 FT.
.FRI...N WIND 10 TO 20 KT. SEAS 6 FT.
.FRI NIGHT...N WIND 10 TO 20 KT. SEAS 6 FT.
.SAT THROUGH MON...NW WIND 15 TO 30 KT. SEAS 7 TO 12 FT.

$$

PKZ412-080145-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
333 AM AKDT THU APR 7 2016

.TODAY...VARIABLE WIND TO 20 KT BECOMING NE WIND 10 TO 15 KT IN
THE AFTERNOON. SEAS 9 FT.
.TONIGHT...NE WIND 20 KT. SEAS 7 FT.
.FRI...NE WIND 15 TO 30 KT. SEAS 7 FT.
.FRI NIGHT...NE WIND 20 TO 35 KT. SEAS 7 TO 12 FT.
.SAT THROUGH SUN...NE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.
.MON...N WIND 10 TO 20 KT. SEAS 3 TO 8 FT.

$$

PKZ413-080145-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
333 AM AKDT THU APR 7 2016

.TODAY...VARIABLE WIND TO 15 KT BECOMING N WIND 10 TO 15 KT IN THE
AFTERNOON. SEAS 9 FT.
.TONIGHT...NE WIND UP TO 20 KT INCREASING TO 15 TO 25 KT AFTER
MIDNIGHT. SEAS 7 FT.
.FRI...N WIND 20 TO 30 KT. SEAS 7 TO 10 FT.
.FRI NIGHT...N WIND 20 TO 35 KT. SEAS 8 TO 13 FT.
.SAT...N WIND 10 TO 25 KT. SEAS 6 TO 11 FT.
.SUN THROUGH MON...W WIND 15 TO 30 KT. SEAS 7 TO 12 FT.

$$

PKZ414-080145-
BERING SEA OFFSHORE EAST OF 171W-
333 AM AKDT THU APR 7 2016

...GALE WARNING FRIDAY...

.TODAY...E WIND 10 TO 15 KT EXCEPT W WIND S OF THE PRIBILOF
ISLANDS. SEAS 3 TO 8 FT.
.TONIGHT...E WIND 10 TO 25 KT. SEAS 5 TO 8 FT.
.FRI...NE WIND 20 TO 35 KT. SEAS 6 TO 11 FT. RAIN AND SNOW.
.FRI NIGHT...E WIND 20 TO 35 KT. SEAS 7 TO 12 FT.
.SAT...E WIND 10 TO 20 KT. SEAS 3 TO 8 FT.
.SUN...SE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.
.MON...N WIND 10 TO 20 KT. SEAS 3 TO 8 FT.

$$
4 follow-up statements
456 
FZAK62 PAFC 072316
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
316 PM AKDT THU APR 7 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.

PKZ499-081330-
316 PM AKDT THU APR 7 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A FRONT JUST SOUTH OF THE CENTRAL ALEUTIANS WILL SWING INTO THE
EASTERN ALEUTIANS LATE TONIGHT AND ACROSS THE ALASKA PENINSULA
FRI. A 978 MB LOW DEVELOPS ALONG THE FRONT NEAR 52N 168W FRI
MORNING...MOVES TO 52N 169W AT 978 MB FRI AFTERNOON...THEN MOVES
TO 55N 171W AT 981 MB SAT AFTERNOON.

$$

PKZ411-081330-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
316 PM AKDT THU APR 7 2016

.TONIGHT...N WIND 10 TO 20 KT. SEAS 7 FT.
.FRI...N WIND 10 TO 20 KT. SEAS 6 FT.
.FRI NIGHT...N WIND 10 TO 20 KT. SEAS 6 FT.
.SAT...N WIND 10 TO 25 KT. SEAS 4 TO 8 FT.
.SAT NIGHT...N WIND 25 KT. SEAS 6 TO 10 FT.
.SUN...N WIND 15 TO 25 KT. SEAS 8 FT.
.MON...NW WIND 10 TO 25 KT. SEAS 6 TO 9 FT.
.TUE...E WIND 15 TO 30 KT. SEAS 6 TO 11 FT.

$$

PKZ412-081330-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
316 PM AKDT THU APR 7 2016

.TONIGHT...NE WIND 20 KT. SEAS 8 FT.
.FRI...NE WIND 15 TO 30 KT. SEAS 7 FT.
.FRI NIGHT...NE WIND 20 TO 30 KT. SEAS 6 TO 10 FT. RAIN.
.SAT...NE WIND 15 TO 30 KT. SEAS 6 TO 11 FT.
.SAT NIGHT...NE WIND 15 TO 25 KT. SEAS 5 TO 9 FT.
.SUN...N WIND 10 TO 25 KT. SEAS 4 TO 9 FT.
.MON...W WIND 10 TO 20 KT. SEAS 4 TO 7 FT.
.TUE...SE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$

PKZ413-081330-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
316 PM AKDT THU APR 7 2016

.TONIGHT...NE WIND 10 TO 25 KT. SEAS 7 FT.
.FRI...N WIND 20 TO 30 KT. SEAS 8 FT. RAIN.
.FRI NIGHT...N WIND 20 TO 30 KT. SEAS 7 TO 12 FT. RAIN AND SNOW.
.SAT...N WIND 15 TO 25 KT. SEAS 6 TO 11 FT.
.SAT NIGHT...NW WIND 15 TO 25 KT. SEAS 8 FT.
.SUN THROUGH MON...W WIND 10 TO 25 KT. SEAS 7 FT.
.TUE...E WIND 15 TO 30 KT. SEAS 7 TO 12 FT.

$$

PKZ414-081330-
BERING SEA OFFSHORE EAST OF 171W-
316 PM AKDT THU APR 7 2016

...GALE WARNING FRIDAY AND FRIDAY NIGHT...

.TONIGHT...E WIND 15 TO 25 KT. SEAS 6 FT.
.FRI...NE WIND 20 TO 35 KT. SEAS 5 TO 10 FT.
.FRI NIGHT...E WIND 20 TO 35 KT. SEAS 7 TO 11 FT. RAIN AND SNOW.
.SAT...E WIND 15 TO 25 KT. SEAS 5 TO 9 FT.
.SAT NIGHT...SE WIND 15 TO 25 KT. SEAS 4 TO 8 FT.
.SUN...S WIND 10 TO 25 KT. SEAS 4 TO 8 FT.
.MON THROUGH TUE...NE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$
699 
FZAK62 PAFC 081135
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
335 AM AKDT FRI APR 8 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.

PKZ499-090145-
335 AM AKDT FRI APR 8 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 978 MB LOW NEAR 51N 168W MOVES TO 53N 168W AT 981 MB LATE
TONIGHT...THEN MOVES TO 55N 175W AT 985 MB LATE SAT.

$$

PKZ411-090145-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
335 AM AKDT FRI APR 8 2016

.TODAY...N WIND 10 TO 20 KT. SEAS 6 FT.
.TONIGHT...N WIND 10 TO 20 KT. SEAS 6 FT.
.SAT...N WIND 15 TO 25 KT. SEAS 5 TO 9 FT.
.SAT NIGHT...N WIND 15 TO 25 KT. SEAS 6 TO 10 FT.
.SUN...N WIND 15 TO 25 KT. SEAS 8 FT.
.MON...NW WIND 10 TO 25 KT. SEAS 6 TO 9 FT.
.TUE...E WIND 15 TO 30 KT. SEAS 6 TO 11 FT.

$$

PKZ412-090145-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
335 AM AKDT FRI APR 8 2016

.TODAY...NE WIND 15 TO 30 KT. SEAS 7 FT.
.TONIGHT...N WIND 20 TO 30 KT. SEAS 6 TO 10 FT. RAIN.
FREEZING SPRAY N OF 58N.
.SAT...NE WIND 15 TO 30 KT. SEAS 6 TO 10 FT. SNOW AND RAIN
SHOWERS. FREEZING SPRAY N OF 58N.
.SAT NIGHT...NE WIND 15 TO 25 KT. SEAS 6 TO 9 FT.
.SUN...NE WIND 10 TO 25 KT. SEAS 4 TO 8 FT.
.MON...W WIND 10 TO 20 KT. SEAS 4 TO 7 FT.
.TUE...SE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$

PKZ413-090145-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
335 AM AKDT FRI APR 8 2016

...GALE WARNING TONIGHT...

.TODAY...N WIND 20 TO 30 KT. SEAS 7 TO 10 FT. RAIN.
.TONIGHT...N WIND 20 TO 35 KT. SEAS 7 TO 12 FT. RAIN AND SNOW.
.SAT...N WIND 15 TO 25 KT. SEAS 7 TO 11 FT.
.SAT NIGHT...NW WIND 15 TO 25 KT. SEAS 8 FT.
.SUN THROUGH MON...W WIND 15 TO 25 KT. SEAS 6 TO 10 FT.
.TUE...E WIND 15 TO 30 KT. SEAS 7 TO 12 FT.

$$

PKZ414-090145-
BERING SEA OFFSHORE EAST OF 171W-
335 AM AKDT FRI APR 8 2016

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE WIND 20 TO 35 KT. SEAS 7 TO 12 FT. RAIN AND SNOW.
.TONIGHT...E WIND 20 TO 35 KT. SEAS 8 TO 13 FT. RAIN AND SNOW.
.SAT...E WIND 10 TO 25 KT. SEAS 5 TO 9 FT.
.SAT NIGHT...SE WIND 15 TO 30 KT. SEAS 6 TO 9 FT.
.SUN...S WIND 10 TO 25 KT. SEAS 4 TO 8 FT.
.MON THROUGH TUE...NE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$
761 
FZAK62 PAFC 082310
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
310 PM AKDT FRI APR 8 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.

PKZ499-091315-
310 PM AKDT FRI APR 8 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 980 MB LOW NEAR 52N 169W MOVES TO 55N 170W AT 984 MB SAT
AFTERNOON...THEN MOVES TO 57N 173W AT 985 MB SUN AFTERNOON. A 991
MB LOW NEAR 52N 155W THIS EVENING MOVES TO 59N 158W AT 989 MB SAT
MORNING...THEN MOVES TO 63N 170W AT 992 MB SAT NIGHT...THEN
BECOMES A TROUGH OF LOW PRESSURE.

$$

PKZ411-091315-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
310 PM AKDT FRI APR 8 2016

.TONIGHT...N WIND 10 TO 20 KT. SEAS 6 FT.
.SAT...N WIND 15 TO 25 KT. SEAS 5 TO 8 FT.
.SAT NIGHT...N WIND 15 TO 25 KT. SEAS 6 TO 9 FT.
.SUN...N WIND 20 KT. SEAS 8 FT.
.SUN NIGHT...N WIND 20 KT. SEAS 7 FT.
.MON...NW WIND UP TO 20 KT. SEAS 4 TO 8 FT.
.TUE...E WIND 10 TO 25 KT. SEAS 3 TO 8 FT.
.WED...N WIND 25 KT. SEAS 7 TO 11 FT.

$$

PKZ412-091315-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
310 PM AKDT FRI APR 8 2016

.TONIGHT...N WIND 20 TO 30 KT. SEAS 6 TO 11 FT. SNOW AND RAIN.
.SAT...NE WIND 15 TO 30 KT. SEAS 5 TO 10 FT. SNOW AND RAIN
SHOWERS.
.SAT NIGHT...NE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.
.SUN...NE WIND 10 TO 20 KT. SEAS 4 TO 7 FT.
.SUN NIGHT...E WIND 10 TO 20 KT. SEAS 3 TO 6 FT.
.MON THROUGH TUE...SE WIND 10 TO 25 KT. SEAS 3 TO 8 FT.
.WED...NE WIND 25 KT. SEAS 8 TO 13 FT.

$$

PKZ413-091315-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
310 PM AKDT FRI APR 8 2016

...GALE WARNING TONIGHT...

.TONIGHT...N WIND 20 TO 35 KT. SEAS 7 TO 12 FT. RAIN AND SNOW.
.SAT...N WIND 10 TO 25 KT. SEAS 7 TO 11 FT. RAIN AND SNOW SHOWERS.
.SAT NIGHT...NW WIND 10 TO 20 KT. SEAS 7 FT.
.SUN...W WIND 15 TO 25 KT. SEAS 5 TO 8 FT.
.SUN NIGHT...W WIND 20 KT. SEAS 7 FT.
.MON...W WIND UP TO 20 KT. SEAS 5 TO 8 FT.
.TUE...SE WIND 10 TO 25 KT. SEAS 5 TO 10 FT.
.WED...N WIND 15 TO 25 KT. SEAS 10 TO 15 FT.

$$

PKZ414-091315-
BERING SEA OFFSHORE EAST OF 171W-
310 PM AKDT FRI APR 8 2016

...GALE WARNING TONIGHT...

.TONIGHT...E WIND 20 TO 35 KT DIMINISHING TO 15 TO 25 KT AFTER
MIDNIGHT. SEAS 7 TO 12 FT. RAIN AND SNOW.
.SAT...E WIND 10 TO 20 KT. SEAS 4 TO 8 FT. RAIN AND SNOW.
.SAT NIGHT...SE WIND 10 TO 25 KT. SEAS 6 FT.
.SUN...S WIND 10 TO 25 KT. SEAS 5 FT.
.SUN NIGHT...S WIND 10 TO 20 KT. SEAS 4 FT.
.MON...SE WIND UP TO 15 KT. SEAS 3 TO 5 FT.
.TUE...NE WIND UP TO 20 KT. SEAS 4 TO 9 FT.
.WED...E WIND 15 TO 25 KT. SEAS 8 TO 16 FT.

$$
189 
FZAK62 PAFC 091134
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
334 AM AKDT SAT APR 9 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.

PKZ499-100115-
334 AM AKDT SAT APR 9 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 982 MB LOW NEAR 54N 169W MOVES TO 56N 170W AT 984 MB LATE
TONIGHT...THEN MOVES TO 58N 175W AT 990 MB LATE SUN. A 989 MB LOW
NEAR 56N 156W MOVES TO 62N 168W TONIGHT AND MAINTAINS STRENGTH...THEN
MOVES TO 63N 175W SUN MORNING AND DISSIPATES.

$$

PKZ411-100115-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
334 AM AKDT SAT APR 9 2016

.TODAY...N WIND 15 TO 25 KT. SEAS 5 TO 8 FT.
.TONIGHT...N WIND 15 TO 25 KT. SEAS 6 TO 9 FT.
.SUN...N WIND 15 TO 25 KT. SEAS 8 FT. SNOW. FREEZING SPRAY.
.SUN NIGHT...N WIND 20 KT. SEAS 7 FT.
.MON...NW WIND UP TO 20 KT. SEAS 6 FT.
.TUE...E WIND 10 TO 25 KT. SEAS 3 TO 8 FT.
.WED...N WIND 25 KT. SEAS 7 TO 11 FT.

$$

PKZ412-100115-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
334 AM AKDT SAT APR 9 2016

.TODAY...NE WIND 15 TO 30 KT. SEAS 6 TO 10 FT. SNOW AND RAIN.
.TONIGHT...NE WIND 10 TO 25 KT. SEAS 4 TO 9 FT. SNOW AND RAIN.
.SUN...NE WIND 10 TO 20 KT. SEAS 3 TO 7 FT. SNOW.
.SUN NIGHT...N WIND 15 KT. SEAS 4 FT.
.MON...SW WIND UP TO 15 KT. SEAS 4 FT.
.TUE...SE WIND 10 TO 25 KT. SEAS 3 TO 8 FT.
.WED...NE WIND 25 KT. SEAS 8 TO 13 FT.

$$

PKZ413-100115-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
334 AM AKDT SAT APR 9 2016

.TODAY...N WIND 10 TO 25 KT. SEAS 7 TO 11 FT. RAIN SHOWERS.
.TONIGHT...NW WIND 10 TO 20 KT. SEAS 8 FT. RAIN.
.SUN...W WIND 10 TO 25 KT. SEAS 5 TO 9 FT. SNOW.
.SUN NIGHT...W WIND 10 TO 25 KT. SEAS 7 FT.
.MON...W WIND UP TO 15 KT. SEAS 4 TO 7 FT.
.TUE...SE WIND 10 TO 25 KT. SEAS 5 TO 10 FT.
.WED...N WIND 15 TO 25 KT. SEAS 10 TO 15 FT.

$$

PKZ414-100115-
BERING SEA OFFSHORE EAST OF 171W-
334 AM AKDT SAT APR 9 2016

.TODAY...E WIND 10 TO 25 KT. SEAS 4 TO 9 FT. RAIN.
.TONIGHT...SE WIND 10 TO 25 KT. SEAS 4 TO 7 FT. RAIN.
.SUN...S WIND 10 TO 20 KT. SEAS 5 FT. RAIN AND SNOW.
.SUN NIGHT...S WIND 10 TO 20 KT. SEAS 5 FT.
.MON...S WIND UP TO 15 KT. SEAS 3 TO 6 FT.
.TUE...NE WIND UP TO 20 KT. SEAS 4 TO 9 FT.
.WED...E WIND 15 TO 25 KT. SEAS 8 TO 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 Apr 6, 4:40 PM AKDT, 10 hours 53 minutes earlier.

Area forecast discussion, Apr 6, 4:40 PM AKDT, 10 hours 53 minutes before
SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
440 PM AKDT WED APR 6 2016

.ANALYSIS AND UPPER LEVELS...

THERE ARE TWO PRIMARY LOW PRESSURE AREAS IMPACTING THE ANCHORAGE
AREA OF RESPONSIBILITY CURRENTLY. THE FIRST IS AN UPPER LEVEL LOW
CENTERED NEAR KAMISHAK BAY IN LOWER COOK INLET. THIS FEATURE IS
BRINGING SCATTERED TO NUMEROUS RAIN SHOWERS TO MUCH OF SOUTHERN
ALASKA...PARTICULARLY TO SOUTH- AND EAST-FACING SLOPES OF THE
MOUNTAIN RANGES.

THE SECOND LOW IS ACTUALLY A WEAKENING UPPER LEVEL TROUGH CURRENTLY
LOCATED OVER THE FAR SOUTHWESTERN BERING SEA. THE WESTERLY
GRADIENT IS SUBSIDING ON THE SOUTHERN SIDE OF THIS FEATURE OVER
THE WESTERN ALEUTIANS...RESULTING IN DIMINISHING WINDS. AT THE
SURFACE...A FRONT ACROSS THE CENTRAL BERING EXTENDING TO THE
EASTERN ALEUTIANS IS GETTING STRETCHED AS THE ENERGY ALOFT SHEARS
APART.

&&

.MODEL DISCUSSION...

MODELS REMAIN IN FAIRLY GOOD AGREEMENT THROUGH THE REMAINDER OF
THE WORK WEEK. THE NAM CONTINUES AS AN EASTERLY OUTLIER WITH A LOW
MOVING FROM THE NORTHEAST PACIFIC NORTH TOWARD THE NORTH GULF
COAST THURSDAY BEFORE MOVING INLAND THURSDAY NIGHT AND LEAVING A
RESIDUAL LOW NEAR THE GULF COAST OR PRINCE WILLIAM SOUND. THE
GFS...WHICH IS TOWARD THE MIDDLE OF A TIGHT CLUSTER OF MODELS
EXCLUDING THE NAM...IS PREFERRED. THE MAIN IMPACTS OF THE EVENTUAL
TRACK WILL BE RAIN FOR THE COASTAL AREAS...WITH SNOW POTENTIALLY
FOR THOMPSON PASS AND PARTS OF THE COPPER RIVER BASIN WHERE
UP TO SEVERAL INCHES SNOW ACCUMULATION WOULD BE POSSIBLE.

BACK TOWARD THE BERING AND ALEUTIANS...JET ENERGY DIVING INTO THE
BASE OF THE TROUGH OVER THE NORTH PACIFIC WILL HELP TO ENERGIZE A
SURFACE FRONT AND PUSH IT TOWARD THE SOUTHERN BERING...WHICH WOULD
INCLUDE THE CENTRAL ALEUTIANS THROUGH AKPEN THURSDAY NIGHT INTO
FRIDAY. A NEW TRIPLE POINT LOW MAY THEN BE POISED TO DEVELOP FROM
THIS FRONT OVER THE CENTRAL AND EASTERN BERING SEA FRIDAY INTO
SATURDAY.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (DAYS 1 AND 2)...
THE UPPER LEVELS HAVE A STRONG 115 KNOT SOUTHERLY JET STREAKING
THROUGH THE GULF BEFORE TRANSITIONING TO SOUTHWESTERLY FLOW OVER
THE SOUTHEASTERN PANHANDLE REGION. THIS IS STREAMING MOISTURE INTO
THE NORTHERN GULF COASTAL COMMUNITIES AND MID-HIGH LEVEL CLOUDS
SPILLING INTO THE ANCHORAGE BOWL...MAT-SU VALLEYS AND THE COPPER
RIVER BASIN REGION THIS LATE AFTERNOON. WHILE AT 500 MB THERE IS A
NEGATIVE TILTED TROUGH OVER THE NORTHERN GULF WHICH IS KICKING OFF
NUMEROUS RAIN SHOWERS IN THE NORTHERN GULF THAT IS SPREADING INTO
THE NORTHERN COASTAL COMMUNITIES. THIS SYNOPTIC FEATURE WILL
CONTINUE TO PRODUCE A SHOWERY WEATHER REGIME THROUGH THURSDAY.
WHILE THE ANCHORAGE BOWL AND THE WESTERN KENAI CONTINUES TO GET
DOWNSLOPED OUT RESULTING IN DRIER CONDITIONS WITH THE CROSS-
BARRIER FLOW. THERE WILL BE A GALE FORCE NORTH PACIFIC LOW
TRACKING INTO THE GULF BY MIDDAY THURSDAY. THIS WILL BRING THE
NEXT SWATH OF MOISTURE APPROACHING THE NORTHERN GULF BY THURSDAY
AFTERNOON. THIS LOW PRESSURE SYSTEM WILL TRACK JUST SOUTH OF CAPE
SUCKLING WHICH WILL BRING GALE FORCE EASTERLY WINDS ALONG THE
COASTLINE NEAR CAPE SUCKLING. THIS WILL BRING A BAND OF
PRECIPITATION INTO PRINCE WILLIAM SOUND EXTENDING INTO MATANUSKA
VALLEY BY LATE THURSDAY NIGHT. THIS WILL BRING A WINTRY MIX WITH
RAIN ALONG THE COASTLINE BEFORE TRANSITIONING TO A RAIN/SNOW MIX
FARTHER INLAND EXCEPT FOR ALL SNOW THROUGH THOMPSON PASS AND
HIGHER ELEVATIONS.

.FIRE WEATHER DISCUSSION (DAYS 1 AND 2)...
THERE WILL BE SEVERAL UPPER LEVEL DISTURBANCES TRACKING THROUGH
THE NORTHERN GULF INTO THE SOUTHCENTRAL REGION THROUGH FRIDAY.
THIS WILL CONTINUE TO PRODUCE A SHOWERY WEATHER REGIME WITH THE
NORTHERN COASTAL COMMUNITIES RECEIVING THE MAJORITY OF THE
PRECIPITATION. THE ANCHORAGE BOWL AND THE WESTERN KENAI WILL HAVE
DRIER CONDITIONS WITH DOWNSLOPING EXCEPT FOR THE LOWER WESTERN
KENAI. THE RELATIVE HUMIDITIES WILL REMAIN WELL ABOVE RED FLAG
CRITERIA THROUGH FRIDAY.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (DAYS 1 AND 2)...
THE BROAD UPPER TROUGH CENTERED OVER BRISTOL BAY AND SOUTHWEST
ALASKA WILL CONTINUE TO BRING ISOLATED TO SCATTERED SHOWERS TO THE
AREA TONIGHT AND THURSDAY BEFORE TAPERING OFF THURSDAY NIGHT. A
TRANSIENT UPPER LEVEL RIDGE OUT AHEAD OF THE NEXT LOW SHIFTS EAST
ACROSS THE ALASKA PENINSULA AND BRISTOL BAY THURSDAY NIGHT AND
INLAND OVER SOUTHWEST ALASKA FRIDAY.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (DAYS 1 AND 2)...
THE FRONTAL SYSTEM STRETCHING ACROSS THE BERING AND EASTERN
ALEUTIANS WILL SHEAR APART AND WEAKEN AS IT CONTINUES TO ROTATE
NORTHEAST TONIGHT AND THURSDAY. THE NEXT DEVELOPING LOW PRESSURE
SYSTEM WILL TRACK TO SOUTH OF THE CENTRAL ALEUTIANS TO AROUND 48N
BY THURSDAY AFTERNOON. THE ASSOCIATED FRONTAL SYSTEM WILL LIFT
NORTH OVER THE CENTRAL AND EASTERN ALEUTIANS THURSDAY NIGHT TO
STRETCH ACROSS THE SOUTHERN BERING AND ALASKA PENINSULA FRIDAY.

&&

.LONG TERM FORECAST (DAYS 3 THROUGH 7)...
RIDGING WILL DOMINATE THE EASTERN PART OF THE MAINLAND FRIDAY AND
INTO THE WEEKEND WITH A BROAD LONGWAVE TROUGH OVER THE BERING AND
ALEUTIANS. MULTIPLE LOWS WILL MOVE THROUGH THE TROUGH BRINGING
WINDS AND PRECIPITATION PRIMARILY TO THE ALEUTIANS AND COASTAL
AREAS. NEXT WEEK WEDNESDAY THERE IS POTENTIAL FOR A DEEP LOW TO
MOVE INTO THE AREA. AT THIS TIME THE MODELS VARY WIDELY ON ITS
POTENTIAL DEPTH AND WHETHER IT WOULD MOVE INTO THE BERING OR STAY
SOUTH OF THE ALEUTIANS. HOWEVER...THEY DO SEEM TO BE MOVING MORE
TO THE SOUTH WITH THE MOST RECENT RUNS. THESE DIFFERENCES COULD
RESULT IN MAJOR CHANGES TO THE WINDS FOR THE MIDDLE OF NEXT WEEK.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...GALE...119 155 172 174 176 177.

&&

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

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 3:37 AM AKDTSmall Craft AdvisoryAFC48 hr
Apr 7, 3:41 AM AKDTGale WarningAFC35 hr
Apr 7, 3:41 AM AKDTSmall Craft AdvisoryAFC4 days
Apr 7, 2:57 PM AKDTGale WarningAFC37 hr
Apr 7, 2:57 PM AKDTSmall Craft AdvisoryAFC37 hr
Apr 7, 3:16 PM AKDTBrisk Wind AdvisoryAFC71 hr
Apr 7, 3:16 PM AKDTGale WarningAFC36 hr

Nearby

Gale Warnings in Alaska, 2016Every gale warning in 2016

Sources

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