Alert archive / Alaska / Small Craft Advisories in 2016

Small Craft Advisory 345, NWS Anchorage, AK

April 21, 2016

NWS Anchorage, AK issued this small craft advisory at Apr 21, 2016, 3:00 PM AKDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Apr 21, 2016, 3:00 PM AKDT (23:00 UTC)
Expired
Apr 22, 2016, 3:45 AM AKDT
In force
13 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

396 
FZAK52 PAFC 212300
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
300 PM AKDT THU APR 21 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.

PKZ199-221145-
300 PM AKDT THU APR 21 2016
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 992 MB LOW 80 NM EAST OF DUTCH HARBOR MOVES 210 NM NORTHWEST
OF DUTCH HARBOR AT 995 MB FRI NIGHT AND DISSIPATES. A 1000 MB
NORTH PACIFIC LOW MOVES 300 NM SOUTHWEST OF ADAK AT 990 MB FRI
AFTERNOON...THEN MOVES 90 NM SOUTHEAST OF ADAK AT 987 MB SAT
AFTERNOON.

$$

PKZ150-221145-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...E WIND 30 KT. SEAS 11 FT.
.FRI...E WIND 25 KT. SEAS 10 FT. RAIN.
.FRI NIGHT...E WIND 20 KT. SEAS 7 FT. RAIN.
.SAT...NW WIND 25 KT. SEAS 7 FT.
.SAT NIGHT...N WIND 20 KT. SEAS 7 FT.
.SUN...E WIND 30 KT. SEAS 10 FT.
.MON...E WIND 30 KT. SEAS 18 FT.
.TUE...SE WIND 25 KT. SEAS 14 FT.

$$

PKZ155-221145-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...SW WIND 20 KT EXCEPT E 30 KT FROM THE SHUMAGIN ISLANDS
E. SEAS 13 FT. RAIN.
.FRI...SW WIND 20 KT EXCEPT E 20 KT E OF THE SHUMAGIN ISLANDS.
SEAS 9 FT. RAIN.
.FRI NIGHT...NW WIND 20 KT. SEAS 7 FT.
.SAT...W WIND 20 KT. SEAS 7 FT.
.SAT NIGHT...S WIND 25 KT. SEAS 9 FT.
.SUN...E WIND 35 KT. SEAS 13 FT.
.MON...NE WIND 30 KT. SEAS 13 FT.
.TUE...S WIND 20 KT. SEAS 11 FT.

$$

PKZ160-221145-
BRISTOL BAY-
300 PM AKDT THU APR 21 2016

.TONIGHT...E WIND 20 KT. SEAS 3 FT.
.FRI...E WIND 20 KT. SEAS 3 FT.
.FRI NIGHT...NE WIND 15 KT BECOMING E AFTER MIDNIGHT. SEAS 2 FT.
.SAT...NW WIND 10 KT. SEAS 1 FT.
.SAT NIGHT...N WIND 10 KT. SEAS 2 FT.
.SUN THROUGH MON...E WIND 30 KT. SEAS 5 FT.
.TUE...E WIND 20 KT. SEAS 3 FT.

$$

PKZ165-221145-
PORT HEIDEN TO CAPE SARICHEF-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...E WIND 30 KT. SEAS 8 FT. RAIN.
.FRI...E WIND 25 KT. SEAS 7 FT. RAIN.
.FRI NIGHT...NW WIND 15 KT. SEAS 5 FT.
.SAT...SW WIND 15 KT. SEAS 4 FT.
.SAT NIGHT...SE WIND 20 KT. SEAS 4 FT.
.SUN THROUGH MON...NE WIND 30 KT. SEAS 7 FT.
.TUE...E WIND 20 KT. SEAS 5 FT.

$$

PKZ170-221145-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
300 PM AKDT THU APR 21 2016

.TONIGHT...NW WIND 20 KT. SEAS 5 FT. RAIN.
.FRI...W WIND 20 KT. SEAS 6 FT. RAIN.
.FRI NIGHT...SW WIND 20 KT. SEAS 6 FT.
.SAT...SE WIND 30 KT. SEAS 6 FT.
.SAT NIGHT...SE WIND 25 KT. SEAS 7 FT.
.SUN...NE WIND 30 KT. SEAS 8 FT.
.MON...N WIND 25 KT. SEAS 7 FT.
.TUE...E WIND 15 KT. SEAS 5 FT.

$$

PKZ171-221145-
UNALASKA BAY-
300 PM AKDT THU APR 21 2016

.TONIGHT...NW WIND 10 KT BECOMING W AFTER MIDNIGHT. SEAS 2 FT.
.FRI...W WIND 15 KT. SEAS 2 FT. RAIN.
.FRI NIGHT...W WIND 10 KT. SEAS 2 FT.
.SAT...SE WIND 20 KT. SEAS 3 FT.
.SAT NIGHT...SE WIND 25 KT. SEAS 4 FT.
.SUN...E WIND 30 KT. SEAS 6 FT.
.MON...N WIND 20 KT. SEAS 5 FT.
.TUE...S WIND 10 KT. SEAS 2 FT.

$$

PKZ172-221145-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...NW WIND 15 KT. SEAS 9 FT.
.FRI...W WIND 20 KT. SEAS 8 FT. RAIN.
.FRI NIGHT...W WIND 20 KT. SEAS 7 FT.
.SAT...S WIND 25 KT. SEAS 10 FT.
.SAT NIGHT...SE WIND 30 KT. SEAS 13 FT.
.SUN...NE WIND 40 KT. SEAS 16 FT.
.MON...NW WIND 25 KT. SEAS 12 FT.
.TUE...SW WIND 15 KT. SEAS 9 FT.

$$

PKZ173-221145-
NIKOLSKI TO SEGUAM ISLAND BERING SIDE-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY FRIDAY NIGHT...

.TONIGHT...NW WIND 15 KT. SEAS 4 FT.
.FRI...W WIND 20 KT. SEAS 5 FT.
.FRI NIGHT...SW WIND 15 KT BECOMING SE 25 KT AFTER MIDNIGHT.
SEAS 5 FT.
.SAT...SE WIND 30 KT. SEAS 7 FT.
.SAT NIGHT...SE WIND 20 KT. SEAS 9 FT.
.SUN...NE WIND 25 KT. SEAS 9 FT.
.MON...N WIND 20 KT. SEAS 9 FT.
.TUE...NE WIND 15 KT. SEAS 5 FT.

$$

PKZ174-221145-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...NW WIND 15 KT. SEAS 9 FT.
.FRI...W WIND 20 KT. SEAS 8 FT.
.FRI NIGHT...SW WIND 20 KT BECOMING SE 30 KT AFTER MIDNIGHT.
SEAS 9 FT.
.SAT...S WIND 30 KT. SEAS 12 FT.
.SAT NIGHT...SE WIND 25 KT. SEAS 13 FT.
.SUN...NE WIND 30 KT. SEAS 14 FT.
.MON...NW WIND 25 KT. SEAS 12 FT.
.TUE...SW WIND 15 KT. SEAS 9 FT.

$$

PKZ175-221145-
SEGUAM ISLAND TO ADAK BERING SIDE-
300 PM AKDT THU APR 21 2016

.TONIGHT...VARIABLE WIND 10 KT. SEAS 4 FT.
.FRI...W WIND 15 KT. SEAS 4 FT.
.FRI NIGHT...VARIABLE WIND 10 KT BECOMING E 20 KT AFTER MIDNIGHT.
SEAS 4 FT.
.SAT...E WIND 25 KT. SEAS 7 FT.
.SAT NIGHT...NE WIND 20 KT. SEAS 7 FT.
.SUN THROUGH TUE...NE WIND 20 KT. SEAS 7 FT.

$$

PKZ176-221145-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...W WIND 20 KT. SEAS 8 FT.
.FRI...W WIND 20 KT. SEAS 8 FT.
.FRI NIGHT...SE WIND 25 KT. SEAS 8 FT.
.SAT...E WIND 25 KT. SEAS 11 FT.
.SAT NIGHT...NE WIND 20 KT. SEAS 10 FT.
.SUN THROUGH MON...NW WIND 25 KT. SEAS 11 FT.
.TUE...NE WIND 15 KT. SEAS 8 FT.

$$

PKZ177-221145-
ADAK TO KISKA-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...W WIND 25 KT. SEAS 8 FT.
.FRI...W WIND 20 KT IN THE MORNING BECOMING VARIABLE 10 KT. SEAS
8 FT.
.FRI NIGHT...NE WIND 25 KT. SEAS 6 FT.
.SAT...N WIND 25 KT. SEAS 7 FT.
.SAT NIGHT THROUGH SUN...N WIND 20 KT. SEAS 8 FT.
.MON THROUGH TUE...NE WIND 20 KT. SEAS 7 FT.

$$

PKZ178-221145-
KISKA TO ATTU-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W WIND 25 KT. SEAS 8 FT.
.FRI...NW WIND 15 KT IN THE MORNING BECOMING VARIABLE 10 KT. SEAS
6 FT.
.FRI NIGHT...N WIND 15 KT. SEAS 5 FT.
.SAT AND SAT NIGHT...N WIND 25 KT. SEAS 8 FT.
.SUN THROUGH MON...NE WIND 20 KT. SEAS 9 FT.
.TUE...NE WIND 25 KT. SEAS 8 FT.

$$

PKZ179-221145-
PRIBILOF ISLANDS NEAR SHORE WATERS-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...NE WIND INCREASING TO 20 KT. SEAS BUILDING TO 8 FT.
RAIN.
.FRI...E WIND 20 KT. SEAS 8 FT. RAIN.
.FRI NIGHT...SE WIND 20 KT. SEAS 7 FT.
.SAT...SE WIND 20 KT. SEAS 5 FT.
.SAT NIGHT...E WIND 25 KT. SEAS 8 FT.
.SUN THROUGH MON...NE WIND 20 KT. SEAS 8 FT.
.TUE...NE WIND 15 KT. SEAS 6 FT.

$$

PKZ180-221145-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...E WIND 25 KT. SEAS 7 FT.
.FRI...E WIND 20 KT. SEAS 5 FT.
.FRI NIGHT...NE WIND 15 KT. SEAS 4 FT.
.SAT...NW WIND 10 KT. SEAS 2 FT.
.SAT NIGHT...NE WIND 10 KT. SEAS 2 FT.
.SUN THROUGH MON...NE WIND 30 KT. SEAS 6 FT.
.TUE...E WIND 20 KT. SEAS 4 FT.

$$

PKZ181-221145-
NORTH AND WEST OF NUNIVAK ISLAND-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 3 FT.
.FRI...NE WIND 20 KT. SEAS IN ICE FREE WATERS 2 FT.
.FRI NIGHT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT.
.SAT AND SAT NIGHT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT.
.SUN THROUGH TUE...NE WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

PKZ185-221145-
SAINT MATTHEW ISLAND WATERS-
300 PM AKDT THU APR 21 2016

...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 4 FT. SNOW.
.FRI...NE WIND 25 KT. SEAS IN ICE FREE WATERS 3 FT.
.FRI NIGHT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 3 FT. FREEZING
SPRAY.
.SAT AND SAT NIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 3 FT.
.SUN THROUGH TUE...NE WIND 30 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

What forecasters said that day

The local office's own words before this small craft advisory 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 small craft advisory went out at Apr 21, 5:41 AM AKDT, 9 hours 19 minutes earlier.

Area forecast discussion, Apr 21, 5:41 AM AKDT, 9 hours 19 minutes before
SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
541 AM AKDT THU APR 21 2016

.ANALYSIS AND UPPER LEVELS...
THE NORTH AMERICAN RIDGE IS ASSERTING ITSELF INTO SOUTHERN AK THIS
MORNING. MUCH OF THE MOISTURE THAT WAS PUSHING INTO THE STATE FROM
THE GULF ON WED HAS DRIED OUT AS THE HIGH BUILDS IN. THIS HAS LED
TO CLEARING SKIES OVERNIGHT AND SHOULD ALLOW FOR BOUNTIFUL
SUNSHINE ACROSS THE AREA TODAY. EVEN KODIAK...WHO IS STILL UNDER
THE INFLUENCE OF SOME ONSHORE FLOW AND LOW CLOUDS...SHOULD DRY OUT
LATER TODAY. OUT WEST...THE JET CONTINUES TO CLIP ALONG BETWEEN 70
AND 150 KTS FROM 40N TO 50N WELL SOUTH OF THE ALEUTIANS. THIS
IS HELPING KEEP THE BROAD LONGWAVE TROUGH CENTERED OVER THE
BERING. THE MOST ACTIVE WEATHER CONTINUES TO BE ON THE EASTERN
SIDE OF THIS TROUGH. WARM AND MOIST FLOW FROM THE NORTH PACIFIC IS
RIDING THE SOUTH TO NORTH THERMAL GRADIENT. THIS IS HELPING WEAK
AREAS OF LOW PRESSURE TO FORM NEAR COLD BAY AND MOVE QUICKLY TO
THE NORTH AND EAST OF THE PRIBILOF ISLANDS.

&&

.MODEL DISCUSSION...
IN THE EAST...MODELS ARE IN GOOD AGREEMENT FOR THE FIRST 36 HOURS.
THUS...HIGHER RESOLUTION DATA WAS USED FOR MINOR UPDATES. BEYOND
THAT...A GFS/EC BLEND WAS USED AS THE NAM BECAME A WEAK OUTLIER
MOVING A LOW INTO THE GULF LATE FRI INTO SAT. MODELS HAVE NOT DONE
A GREAT JOB WITH THIS LOW OVER THE PAST FEW DAYS SHIFTING THEIR
POSITIONS QUITE A BIT FROM RUN TO RUN HEADING INTO THE WEEKEND.
SOME OF THIS MAY BE DUE TO WHAT IS HAPPENING UPSTREAM. A TRIPLE
POINT LOW IS PROJECTED TO DEVELOP EARLY SUN SOUTH OF DUTCH HARBOR.
BUT SOME OF THE MODELS OVERNIGHT MADE DRAMATIC JUMPS WITH THE
STRENGTH AND POSITION OF THIS FEATURE. DEPENDING ON HOW STRONG AND
THE EXACT LOCATION OF THE LOW WILL HAVE A DIRECT IMPACT ON WHAT
HAPPENS TO THE LOW IN THE GULF. AT THIS TIME...NEITHER LOW LOOKS
TO BRING MANY WEATHER IMPACTS TO THE STATE. BUT FORECAST
CONFIDENCE IN THE DETAILS REMAINS RATHER LOW.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (DAYS 1 AND 2)...

A WEAKENING FRONT FROM OVER THE GULF CONTINUES TO DRIFT SOUTH.
THE TREND ACROSS MUCH OF SOUTHCENTRAL WILL BE FOR DECREASING
CLOUDINESS...WITH TODAY SHAPING UP TO BE A RETURN TO SIGNIFICANT
AMOUNTS OF SUNSHINE. WINDS OVERALL WILL BE FAIRLY LIGHT WITH
AFTERNOON AND EARLY EVENING SEA BREEZES BEING THE GENERAL RULE
ALONG THE COASTS WITH WEAK DIURNALLY DRIVEN WINDS INLAND (KNIK
RIVER SOUTHEAST WINDS THE MOST NOTABLE). TEMPERATURES WILL REBOUND
INTO THE MID TO UPPER 50S TODAY WITH SOME OF THE MOST WIDESPREAD
LOWER 60S READINGS OF THE SEASON SO FAR POSSIBLE FROM EAST
ANCHORAGE UP TO THE MAT-SU VALLEYS.

TONIGHT AND FRI...AN INVERTED SURFACE TROUGH AND ACCOMPANYING
WEAK MIDLEVEL SHORTWAVE WILL BRING CLOUDS BACK TO THE
REGION...WITH ANOTHER ROUND OF RAINFALL MOVING INTO COASTAL
AREAS. ANOTHER IMPACT FROM THIS FAST-MOVING FEATURE WILL BE TO
BRING GUSTY EAST WINDS TO THE NORTH GULF COAST...PRINCE WILLIAM
SOUND...AND THROUGH PASSAGE CANAL TO WESTERN TURNAGAIN ARM. THESE
WINDS WILL NOT BE ANYWHERE CLOSE TO WARNING LEVELS...BUT WILL
STILL BE A NOTABLE INCREASE FROM TODAY.

&&

.FIRE WEATHER...
TEMPS ARE EXPECTED TO WARM ACROSS MUCH OF SOUTHCENTRAL TODAY WITH VALUES
RANGING FROM THE MID 50S TO LOWER 60S...WARMEST FROM EAST ANCHORAGE
TO OVER THE MAT-SU VALLEYS. ACCOMPANYING RH VALUES WILL DIP DOWN
INTO THE MID TO UPPER 20S IN SPOTS FROM THE ANCHORAGE BOWL TO THE
MAT-SU VALLEYS THIS AFTERNOON. WINDS OVERALL SHOULD BE FAIRLY
LIGHT ACROSS MUCH OF SOUTHCENTRAL...THOUGH THE ONE AREA OF CONCERN
WOULD BE THE DEVELOPMENT OF WEAK SOUTHEAST WINDS OUT OF THE KNIK
RIVER VALLEY THIS AFTERNOON. CURRENT THINKING IS THAT THE
COMBINATION OF TEMPS...RH..AND WINDS SHOULD STAY JUST BELOW CRITICAL
PRE-GREEN UP CRITERIA. RH VALUES WILL RECOVER DURING THE EVENING
HOURS TONIGHT. ON FRI...A WAVE MOVING WEST ACROSS THE NORTHERN
GULF WILL BRING INCREASED CLOUD COVER WITH COOLER TEMPS AND HIGHER
DAYTIME RH VALUES.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (DAYS 1 AND 2...THU AND FRI)...
HIGH PRESSURE WILL PUSH OVER THE MAINLAND FROM THE EAST TODAY.
THIS WILL BRING DECREASING CLOUDS AND FINALLY ALLOW THE GUSTY
SOUTHEAST WINDS TO SUBSIDE...EXCEPT FOR THE ALASKA PENINSULA
WHERE ANOTHER LOW WILL DEVELOP ALONG THE FRONT DRAPED ACROSS THAT
REGION. THIS WILL MAKE FOR ANOTHER ROUND OF GUSTY SOUTHEAST WINDS
AND MODERATE RAIN FOR PLACES LIKE COLD BAY AND FALSE PASS.

ON FRIDAY...THE LOW NEAR COLD BAY STALLS. SO WHILE THERE WILL
STILL BE WIDESPREAD RAIN...THE WINDS SHOULD SUBSIDE SOMEWHAT. OVER
MAINLAND SOUTHWEST...SOME MOISTURE WILL TRY TO CREEP OVER THE
ALASKA RANGE. MOST POPULATION CENTERS WILL REMAIN DRY AND JUST
SEE INCREASING CLOUD COVER WITH COOLER TEMPERATURES.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (DAYS 1 AND 2...THU AND
FRI)... QUIET WEATHER REMAINS THE STORY OVER THE AREA. BROAD
CYCLONIC FLOW WILL CONTINUE THROUGH THE END OF THE WEEK. A FEW
WEAK SYSTEMS TRY TO DEVELOP OVER THE NORTH PACIFIC AND CLIP THE
EASTERN ALEUTIANS. NOT UNTIL LATE SAT INTO SUN DO WE SEE ANY SIGNS
OF A MORE SIGNIFICANT LOW DEVELOPING SOUTH OF THE CHAIN (SEE MODEL
DISCUSSION FOR MORE DETAILS).

&&

.LONG TERM FORECAST (DAYS 3 THROUGH 7)...

THE MODELS HAVE COME INTO BETTER AGREEMENT TODAY WITH DEPICTING
THE OVERALL LONGWAVE PATTERN AND SURFACE FEATURES ACROSS ALASKA
AND THE NORTH PACIFIC. AN AREA OF LOW PRESSURE WILL PUSH FROM THE
NORTH PACIFIC INTO THE GULF OF ALASKA ON SATURDAY AND RETURN RAIN
CHANCES BACK TO THE NORTHERN GULF COAST. RAIN WILL HAVE A
DIFFICULT TIME MAKING IT INLAND. IT APPEARS THAT ENOUGH OF AN
OFFSHORE GRADIENT EXISTS WHICH SHOULD KEEP THE MAINLAND ON THE DRY
SIDE. AT THE SAME TIME...AN AREA OF LOW PRESSURE WILL MOVE QUICKLY
FROM THE NORTH PACIFIC TO NEAR THE EASTERN ALEUTIANS BY SUNDAY
MORNING. MODELS HAVE BEEN IN EXCELLENT AGREEMENT WITH THIS FEATURE
AND HAVE SPED IT UP OVER PREVIOUS RUNS AS A MORE POTENT JET STREAK
ALOFT DRIVES THIS LOW NORTHWARD. THIS LOW WILL THEN CONTINUE TO
TRACK EASTWARD JUST SOUTH OF THE ALEUTIANS AND INTO THE GULF OF
ALASKA...BRINGING YET ANOTHER CHANCE OF RAIN TO THE NORTHERN GULF
COAST. MUCH OF THE SOUTHWEST AND SOUTHCENTRAL MAINLAND WILL REMAIN
ON THE DRY SIDE ONCE AGAIN AS THE LOW TRACKS FAR ENOUGH SOUTH OF
ALASKA. ANOTHER LOW PRESSURE SYSTEM WILL TRACK NEAR THE CENTRAL
ALEUTIANS ON TUESDAY AND CONTINUE EASTWARD THROUGH THURSDAY.

OVERALL...SOUTHWEST AND SOUTHCENTRAL ALASKA WILL SEE A GOOD BIT OF
CLOUD COVER BUT BREAKS ARE SURE TO HAPPEN THROUGHOUT THE FORECAST
PERIOD. TEMPERATURES WILL REMAIN WELL ABOVE NORMAL AND POSSIBLY
NEAR RECORD HIGHS IN SOME LOCATIONS. THE LONGWAVE PATTERN CONTINUES
TO BE REINFORCED BY UPPER LEVEL DISTURBANCES BEING EJECTED FROM
THE RUSSIAN AND ASIAN COASTLINES. THE PERSISTENT NORTH AMERICAN
RIDGE WILL CONTINUE TO TRY TO NUDGE OVER PARTS OF EASTERN ALASKA
THROUGH THE PERIOD AND THE WARMEST DAYTIME HIGH TEMPERATURES WILL
LIKELY OCCUR WHEN THIS RIDGE IS ABLE TO BUILD ACROSS PORTIONS OF
SOUTHCENTRAL ALASKA.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...SMALL CRAFT ADVISORIES 119 130 131 132 138 150 155 160
165 172 174 176 177 178 179 180 181 185

&&

SYNOPSIS AND MODEL DISCUSSION...MO
SOUTHCENTRAL ALASKA...BC
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MO
LONG TERM...MC

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 3:45 PM AKDTSmall Craft AdvisoryAFC36 hr

Nearby

Small Craft Advisories in Alaska, 2016Every small craft advisory 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.