Gale Warning 121, NWS Anchorage, AK

940 
FZAK61 PAFC 081203
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST FRI FEB 8 2013

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-090300-
400 AM AKST FRI FEB 8 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

WEAK HIGH PRESSURE OVER THE SOUTH CENTRAL GULF WILL RETREAT TO THE
EASTERN GULF AND WEAKEN TONIGHT. A PACIFIC LOW CENTERED NEAR 50N 160W
LATE THIS EVENING WILL MOVE TO 56N 156W AT 968 MB SAT AFTERNOON...
THEN MOVE ASHORE SOUTHERN BRISTOL BAY SAT EVENING. AN ASSOCIATED
FRONT WILL TRACK FROM SOUTHWESTERN GULF TONIGHT TO THE NORTHERN TO
EASTERN GULF ON SAT. A SECONDARY FRONT WILL APPROACH THE WESTERN GULF
LATE SAT NIGHT. 

$$

PKZ351-090300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST FRI FEB 8 2013

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...SW WIND 15 KT. SEAS 10 FT. 
.TONIGHT...SE WIND 25 KT INCREASING TO 40 KT AFTER MIDNIGHT. SEAS
12 FT. RAIN. 
.SAT...S WIND 35 KT. SEAS 16 FT. RAIN. 
.SAT NIGHT...S WIND 40 KT. SEAS 24 FT. 
.SUN...SW WIND 35 KT. SEAS 25 FT. 
.MON...SW WIND 30 KT. SEAS 15 FT. 
.TUE...S WIND 25 KT. SEAS 10 FT.  

$$

PKZ352-090300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST FRI FEB 8 2013

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...SW WIND 20 KT BECOMING SE IN THE AFTERNOON. SEAS 12 FT. 
.TONIGHT...SE WIND 35 KT. SEAS 16 FT. RAIN. 
.SAT...S WIND 35 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS
21 FT. RAIN. 
.SAT NIGHT...SW WIND 45 KT. SEAS 25 FT. 
.SUN...SW WIND 35 KT. SEAS 23 FT. 
.MON...SW WIND 25 KT. SEAS 15 FT. 
.TUE...S WIND 20 KT. SEAS 10 FT.  

$$

862 
FZAK61 PAFC 090016
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST FRI FEB 8 2013

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-091500-
400 PM AKST FRI FEB 8 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 960 MB LOW NEAR 47N 161W WILL WEAKEN TO 968 MB NEAR 56N 156W SAT
AFTERNOON AND MOVE INLAND OVER SOUTHWEST ALASKA SAT EVENING. A 989 MB
LOW NEAR 52N 163W EARLY SUN MORNING WILL MOVE TO 56N 151W AT 990 MB
SUN AFTERNOON.
$$

PKZ351-091500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKST FRI FEB 8 2013

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...SE WIND 20 TO 30 KT INCREASING TO 40 KT AFTER MIDNIGHT.
SEAS 10 TO 14 FT. RAIN AND SNOW. 
.SAT...S WIND 30 KT IN THE MORNING INCREASING TO 40 KT. SEAS 16 FT.
PATCHY FOG. RAIN.
.SAT NIGHT...S WIND 45 KT. SEAS 25 FT. RAIN.
.SUN...SW WIND 40 KT. SEAS 25 FT. 
.SUN NIGHT...S WIND 35 KT. SEAS 18 FT. 
.MON...W WIND 35 KT. SEAS 16 FT. 
.TUE...S WIND 25 KT. SEAS 10 FT. 
.WED...SE WIND 30 KT. SEAS 15 FT.  
$$

PKZ352-091500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKST FRI FEB 8 2013

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...E WIND 35 TO 45 KT BECOMING S 35 KT AFTER MIDNIGHT. SEAS
13 TO 17 FT. PATCHY FOG. RAIN AND SNOW. 
.SAT...S WIND 45 KT. SEAS 22 FT. PATCHY FOG. RAIN.
.SAT NIGHT...S WIND 45 KT. SEAS 26 FT. 
.SUN...SW WIND 35 KT. SEAS 23 FT. 
.SUN NIGHT...S WIND 40 KT. SEAS 19 FT. 
.MON...SW WIND 35 KT. SEAS 15 FT. 
.TUE...S WIND 20 KT. SEAS 10 FT. 
.WED...S WIND 30 KT. SEAS 14 FT.  
$$

657 
FZAK61 PAFC 091216
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST SAT FEB 9 2013

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-100300-
400 AM AKST SAT FEB 9 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 962 MB LOW NEAR 52N 158W WILL MOVE INLAND OVER SOUTHWEST ALASKA
THIS EVENING WHILE AN ASSOCIATED FRONT WEAKENS TODAY OVER THE
NORTHERN GULF. A SECONDARY FRONT MOVES FROM THE WESTERN GULF THIS
EVENING TO THE NORTHERN GULF ON SUN. A LOW FORMING NEAR THE EASTERN
ALEUTIANS TONIGHT WILL QUICKLY TRACK TO 54N 157W AT 988 MB SUN
MORNING...THEN MOVE TO NEAR 58N 145W EARLY MON MORNING WITH LITTLE
CHANGE IN STRENGTH. 

$$

PKZ351-100300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST SAT FEB 9 2013

...GALE WARNING THROUGH SUNDAY...

.TODAY...S WIND 30 KT BECOMING SE 40 KT IN THE AFTERNOON. SEAS
16 FT. RAIN. 
.TONIGHT...S WIND 40 KT. SEAS 25 FT. RAIN. 
.SUN...SW WIND 35 KT. SEAS 24 FT. RAIN SHOWERS. 
.SUN NIGHT AND MON...SW WIND 35 KT. SEAS 16 FT. 
.TUE...SW WIND 25 KT. SEAS 10 FT. 
.WED...SE WIND 30 KT. SEAS 14 FT.  

$$

PKZ352-100300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST SAT FEB 9 2013

...GALE WARNING THROUGH SUNDAY...

.TODAY...S WIND 35 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS
20 FT. RAIN. 
.TONIGHT...S WIND 40 KT. SEAS 23 FT. 
.SUN...SW WIND 35 KT. SEAS 21 FT. RAIN SHOWERS. 
.SUN NIGHT...W WIND 35 KT. SEAS 18 FT. 
.MON...SW WIND 35 KT. SEAS 15 FT. 
.TUE...S WIND 25 KT. SEAS 11 FT. 
.WED...SE WIND 30 KT. SEAS 15 FT.  

$$

279 
FZAK61 PAFC 100000
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST SAT FEB 9 2013

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-101500-
400 PM AKST SAT FEB 9 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 968 MB LOW NEAR 58N 160W WILL MOVE INLAND OVER SOUTHWEST ALASKA
THIS EVENING. A 987 MB LOW NEAR 55N 158W SUN MORNING WILL WEAKEN TO
995 MB NEAR 60N 148W LATE SUN NIGHT AND MOVE INLAND OVER PRINCE
WILLIAM SOUND MON MORNING.

$$

PKZ351-101500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKST SAT FEB 9 2013

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...S WIND 40 KT. SEAS 25 FT. RAIN AND SNOW SHOWERS.
.SUN...SW WIND 35 KT. SEAS 24 FT. RAIN AND SNOW SHOWERS. 
.SUN NIGHT...W WIND 20 TO 35 KT. SEAS 19 FT. RAIN SHOWERS. 
.MON...W WIND 35 KT. SEAS 18 FT. 
.MON NIGHT AND TUE...SW WIND 25 KT. SEAS 11 FT. 
.WED...SE WIND 30 KT. SEAS 14 FT. 
.THU...SE WIND 30 KT. SEAS 19 FT.  

$$

PKZ352-101500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKST SAT FEB 9 2013

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...S WIND 40 KT. SEAS 25 FT. 
.SUN...SW WIND 40 KT. SEAS 24 FT. RAIN AND SNOW SHOWERS. 
.SUN NIGHT...SW WIND 35 KT. SEAS 20 FT. 
.MON...SW WIND 35 KT. SEAS 17 FT. 
.MON NIGHT AND TUE...SW WIND 25 KT. SEAS 11 FT. 
.WED...SE WIND 30 KT. SEAS 15 FT. 
.THU...S WIND 25 KT. SEAS 22 FT.  

$$

889 
FZAK61 PAFC 101236
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST SUN FEB 10 2013

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-110300-
400 AM AKST SUN FEB 10 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 989 MB NORTH PACIFIC LOW WILL MOVE TO 57N 151W AT 993 MB THIS
EVENING...THEN MOVE TO 61N 146W AND DISSIPATE MON EVENING. A 1005 MB
LOW NEAR 51N 149W WILL MOVE TO 54N 140W AND INTENSIFY TO 994 MB TUE
MORNING. 

$$

PKZ351-110300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST SUN FEB 10 2013

...GALE WARNING THROUGH MONDAY...

.TODAY...SW WIND 35 KT. SEAS 22 FT. RAIN AND SNOW SHOWERS. 
.TONIGHT...W WIND 25 TO 35 KT. SEAS 19 FT. RAIN AND SNOW SHOWERS. 
.MON...W WIND 35 KT BECOMING SW 25 KT IN THE AFTERNOON. SEAS 17 FT. 
.MON NIGHT...S WIND 20 KT. SEAS 10 FT. 
.TUE...SW WIND 20 KT. SEAS 10 FT. 
.WED AND THU...SE WIND 30 KT. SEAS 12 FT.  

$$

PKZ352-110300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST SUN FEB 10 2013

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW WIND 35 KT. SEAS 24 FT. RAIN AND SNOW SHOWERS. 
.TONIGHT...SW WIND 35 KT. SEAS 20 FT. 
.MON...SW WIND 25 KT. SEAS 15 FT. 
.MON NIGHT...S WIND 20 KT. SEAS 11 FT. 
.TUE...SW WIND 25 KT. SEAS 11 FT. 
.WED...SE WIND 30 KT. SEAS 12 FT. 
.THU...S WIND 25 KT. SEAS 11 FT.  

$$

825 
FZAK61 PAFC 110015
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST SUN FEB 10 2013

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-111500-
400 PM AKST SUN FEB 10 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 992 MB LOW NEAR 57N 152W WILL WEAKEN TO 996 MB NEAR 60N 147W LATE
SUN NIGHT AND MOVE INLAND MON MORNING. A SERIES OF WEAK FRONTS WILL
MOVE FROM THE WESTERN GULF TO THE NORTH GULF COAST THROUGH TUE
AFTERNOON.

$$

PKZ351-111500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKST SUN FEB 10 2013

...GALE WARNING THROUGH MONDAY...

.TONIGHT...S WIND 35 KT BECOMING SW BY MIDNIGHT. SEAS 20 FT. SNOW AND
RAIN SHOWERS. 
.MON...W WIND 35 KT BECOMING SW 25 KT IN THE AFTERNOON. SEAS 20 FT
SUBSIDING TO 12 FT IN THE AFTERNOON. 
.MON NIGHT...S WIND 20 KT. SEAS 10 FT. 
.TUE AND TUE NIGHT...SW WIND 20 KT. SEAS 10 FT. 
.WED AND THU...SE WIND 30 KT. SEAS 13 FT. 
.FRI...SW WIND 30 KT. SEAS 20 FT.  

$$

PKZ352-111500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKST SUN FEB 10 2013

...GALE WARNING TONIGHT...

.TONIGHT...SW WIND 35 KT. SEAS 20 FT. 
.MON...SW WIND 25 KT. SEAS 15 FT. 
.MON NIGHT...SE WIND 20 KT. SEAS 11 FT. 
.TUE...SW WIND 25 KT. SEAS 12 FT. 
.TUE NIGHT...S WIND 20 KT. SEAS 11 FT. 
.WED...SE WIND 30 KT. SEAS 12 FT. 
.THU...S WIND 25 KT. SEAS 17 FT. 
.FRI...SW WIND 25 KT. SEAS 17 FT.  

$$

259 
FZAK61 PAFC 111246
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST MON FEB 11 2013

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-120300-
400 AM AKST MON FEB 11 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 997 MB LOW IN PRINCE WILLIAM SOUND WILL DISSIPATE THIS AFTERNOON.
A 998 MB NORTH PACIFIC LOW WILL MOVE TO 59N 146W AND WEAKEN TO 1011
MB WED MORNING.

$$

PKZ351-120300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST MON FEB 11 2013

.TODAY...W WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS
16 FT SUBSIDING TO 10 FT IN THE AFTERNOON. 
.TONIGHT...SW WIND 20 KT. SEAS 8 FT. 
.TUE...S WIND 25 KT. SEAS 11 FT. RAIN AND SNOW. 
.TUE NIGHT...SW WIND 25 KT. SEAS 14 FT. 
.WED...SE WIND 30 KT. SEAS 13 FT. 
.THU...S WIND 25 KT. SEAS 14 FT. 
.FRI...SW WIND 25 KT. SEAS 15 FT.  

$$

PKZ352-120300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST MON FEB 11 2013

.TODAY...W WIND 25 KT BECOMING S 15 KT IN THE AFTERNOON. SEAS 16 FT
SUBSIDING TO 10 FT IN THE AFTERNOON. 
.TONIGHT...SW WIND 15 TO 25 KT. SEAS 8 FT. 
.TUE...SW WIND 30 KT. SEAS 12 FT. RAIN AND SNOW. 
.TUE NIGHT...SW WIND 25 KT. SEAS 13 FT. 
.WED...SE WIND 30 KT. SEAS 12 FT. 
.THU...S WIND 25 KT. SEAS 16 FT. 
.FRI...SW WIND 25 KT. SEAS 16 FT.  

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
100 PM AKST THU FEB 7 2013

.ANALYSIS AND UPPER LEVELS...A HIGH AMPLITUDE TROUGH IS CENTERED
OVER THE BERING SEA WITH A SHORT-WAVE RIDGE DOWNSTREAM FROM THE
NORTHEAST PACIFIC UP TO SOUTHCENTRAL. A 100+ KT JET STREAK IS
TRACKING NORTHEASTWARD ALONG THE EAST SIDE OF THE TROUGH ACROSS
THE WESTERN GULF. DYNAMIC FORCING ASSOCIATED WITH THIS JET STREAK
ALONG WITH SHORT-WAVES EMBEDDED WITHIN THE FLOW ARE PRODUCING
WIDESPREAD PRECIPITATION ACROSS SOUTHCENTRAL ALASKA THIS MORNING.
AT THE SURFACE A TRIPLE POINT LOW HAS DEVELOPED NEAR KODIAK ISLAND
AND IS TRACKING NORTHEASTWARD. STRONG EASTERLY FLOW OUT AHEAD OF
THIS IS CAUSING SOME DOWNSLOPE DRYING IN THE LEE OF THE CHUGACH
AND KENAI MOUNTAINS...BUT SOUTHERLY FLOW ALOFT IS STILL PRODUCING
SOME LIGHT SNOW IN THESE AREAS. OUT WEST A VERTICALLY STACKED LOW
CONTINUES TO SLOWLY WEAKEN SOUTH OF THE ALEUTIAN CHAIN. AN OCCLUDED
FRONT IS NEARLY STATIONARY FROM NORTHWEST OF THIS LOW CENTER TO THE
SOUTHWEST ALASKA COAST. THE EASTERN PORTION OF THE FRONT HAS LOST '
ITS DEFINITION THANKS TO DEVELOPMENT OF WEAK LOWS NEAR THE PRIBILOF
ISLANDS AND IN BRISTOL BAY. THEREFORE...PRECIP HAS BECOME LESS
ORGANIZED ACROSS THE REGION.

.MODEL DISCUSSION...MODELS HAVE STRUGGLED WITH TRACK OF TRIPLE
POINT LOW IN THE NORTHWEST GULF THIS AFTERNOON AND EVENING. LATEST
SOLUTIONS INDICATE THE ENERGY WILL BE SPLIT ON EITHER SIDE OF THE
KENAI MOUNTAINS. THIS COMBINED WITH STRENGTH OF VERTICAL MOTION
AND PRESENCE OF SOUTHERLY FLOW ALOFT MEANS THAT SNOWFALL IS MORE
FAVORABLE ON THE LEE SIDE OF THE CHUGACH AND KENAI MOUNTAINS...FROM
THE WESTERN KENAI TO ANCHORAGE AND THE MAT VALLEY.

MODELS ARE IN VERY GOOD AGREEMENT WITH EVOLUTION OF SYNOPTIC SCALE
FEATURES AS WE HEAD THROUGH THE WEEKEND. WHERE THERE ARE MINOR
POSITION OR TIMING DIFFERENCES PREFER THE ECMWF/NAM SOLUTIONS WHICH
LINE UP VERY CLOSELY.

.SHORT TERM FORECAST...

SOUTHCENTRAL ALASKA...AS TRIPLE POINT LOW MOVES TO PRINCE WILLIAM
SOUND LATE THIS AFTERNOON THROUGH EARLY EVENING DOWNSLOPING WINDS
WILL WEAKEN. MEANWHILE A STRONG SHORT-WAVE WITH ACCOMPANYING UPPER
LEVEL JET STREAK WILL CROSS SOUTHCENTRAL. EXPECT SNOW TO BECOME
MORE WIDESPREAD AND HEAVIER AS WE HEAD INTO THE LATE AFTERNOON
HOURS. AREAS IN UPSLOPE FLOW...PRIMARILY THE EASTERN SUSITNA VALLEY
AND EASTERN PRINCE WILLIAM SOUND WILL SEE THE HEAVIEST SNOWFALL.
THIS STORM SYSTEM WILL EXIT TO THE NORTH AND EAST LATE TONIGHT
THROUGH EARLY MORNING BRINGING AN END TO MOST OF THE SNOW. HOWEVER
AREAS OF LIGHT SNOW WILL LINGER ALONG THE WESTERN SLOPES OF THE
MOUNTAINS THROUGH FRIDAY AFTERNOON AS WEAK UPPER LEVEL WAVES CONTINUE
TO MOVE THROUGH.

THERE WILL BE A BRIIF BREAK BEFORE THE NEXT MAJOR STORM MOVES IN
FRIDAY NIGHT. THIS STORM WILL BE CHARACTERIZED BY A DEEP LOW TRACKING
TO THE WEST ACROSS SOUTHWEST ALASKA. THIS TYPE OF TRACK MEANS THE
OBSERVED WEATHER WILL BE VERY DIFFERENT THAN TODAYS SYSTEM. MUCH
WARMER AIR WILL ADVECT NORTHWARD ACROSS THE GULF AND CHANGE PRECIP
TO RAIN ALONG THE COAST. THIS STORM TRACK IS ALSO VERY FAVORABLE FOR
VERY STRONG DOWNSLOPE WINDS. THUS...AS WE GET CLOSER TO THE EVENT
WILL NEED TO CONSIDER POSSIBILITY OF HIGH WIND WARNING FOR TURNAGAIN
ARM AND WHETHER ANY PRECIP ADVISORIES OR WARNINGS WILL BE NEEDED FOR
THE EASTERN SIDE OF MOUNTAINS. BOTTOM LINE FOR THIS STORM IS THE
POPULATION CENTERS WILL STAY MOSTLY DRY THANKS TO STRONG DOWNSLOPE
WINDS WHILE UPSLOPE AREAS WILL SEE HEAVY PRECIPITATION.

SOUTHWEST ALASKA...WEAK UPPER LEVEL WAVES WILL CONTINUE TO PRODUCE
AREAS OF LIGHT PRECIP ACROSS SOUTHWEST ALASKA TONIGHT. WITH GENERALLY
LIGHT FLOW ACROSS THE REGION AND VERY MOIST LOW LEVELS LOW CLOUDS
AND FOG WILL ALSO PERSIST. LOW VISIBILITIES IN BLOWING SNOW HAVE
BEEN VERY PERISTENT ALONG THE NORTHWEST KUSKOKWIM DELTA COAST.
THERE WILL BE SOME IMPROVEMENT AS WINDS DIMINISH THIS AFTERNOON AND
EVENING. HOWEVER...WINDS WILL INCREASE AGAIN ON FRIDAY AS ANOTHER
UPPER LEVEL WAVE ARRIVES. CONDITIONS WILL LIKELY BECOME MUCH WORSE
FRIDAY NIGHT AND SATURDAY AS SNOWFALL OUT AHEAD OF A STRONG PACIFIC
STORM ARRIVES...WINDS STRENGTHEN...AND TEMPERATURES FALL. PLAN TO
ISSUE A BLIZZARD WATCH FOR THE KUSKOKWIM DELTA COAST TO HIGHLIGHT
WHEN THE WORST CONDITIONS ARE LIKELY...BUT WILL ALSO MENTION THE
DETERIORATING CONDITIONS DURING THE DAY FRIDAY. THERE IS ALSO
POTENTIAL FOR BLIZZARD CONDITIONS WHEN THIS STORM FIRST ARRIVES IN
BRISTOL BAY FRIDAY NIGHT...MAINLY FOR AREAS NORTH AND WEST OF KING
SALMON WHERE WINDS WILL BE STRONGEST. THE FRONT WILL MOVE QUICKLY
THROUGH...SO EXPECT A FAIRLY SHORT DURATION OF MODERATE TO HEAVY
SNOW AND STRONG WINDS (ON THE ORDER OF 4 TO 6 HOURS). WARM AIR
BEHIND THE FRONT WILL END THE BLIZZARD THREAT AND CAUSE A TRANSITION
TO A MIX OF PRECIP TYPES OR TO ALL RAIN DURING THE DAY SATURDAY.
ARCTIC AIR WILL RAPIDLY MOVE BACK IN ON SUNDAY AS THIS SYSTEM EXITS
TO THE NORTH WHICH WILL AID IN DRYING THIS OUT.

BERING SEA/ALEUTIANS...THE LOW SOUTH OF THE ALEUTIANS WILL CONTINUE
TO SLOWLY TRACK TO THE EAST-SOUTHEAST AND THEN MERGE WITH THE
DEVELOPING PACIFIC SYSTEM ON FRIDAY. ARCTIC AIR WILL SPREAD BACK
SOUTH AND EAST BEHIND THE ALEUTIAN LOW. HOWEVER...COLD ADVECTION
WILL KICK INTO A HIGHER GEAR ACROSS THE EBRING SEA ON FRIDAY NIGHT
AND SATURDAY AS PACIFIC STORM TRACKS TO SOUTHWEST ALASKA AND AN
UPPER LEVEL LOW DROPS OUT OF THE ARCTIC. THIS WILL SET UP BLIZZARD
POTENTIAL FOR THE PRIBILOF ISLANDS BEGINNING FRIDAY AFTERNOON AND
LATER ON THIS WEEKEND FOR THE ALASKA PENINSULA. FOR NOW WILL ONLY
ISSUE A WATCH FOR THE PRIBILOFS.

.LONG TERM FORECAST...UPPER LEVEL FLOW WILL REMAIN PROGRESSIVE.
IT LOOKS LIKE THERE MAY BE A A FEW DAYS BREAK FROM ANY MAJOR STORM
SYSTEM EARLY NEXT WEEK BEFORE ANOTHER STRONG LOW ARRIVES THE MIDDLE
TO LATE PART OF NEXT WEEK.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...BLIZZARD WATCH 155 161 195.
MARINE...STORM WARNING...120 130.
         GALE WARNING...125 132 136 137 138 140 141 150 155 160 165
                        170 172 175 176 179 180 185.
FIRE WEATHER...NONE.

SEB FEB 13

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
137 PM AKST THU FEB 07 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0948 AM     BLIZZARD         1 E PORTAGE             60.78N 148.83W
02/07/2013                                      AK   ASOS

            1/4 MILE VISIBILITY WITH WINDS GUSTING TO 35 MPH FROM 948
            AM TO CURRENTLY.

&&

DSTRICKL

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ANCHORAGE AK
300 PM AKST THU FEB 7 2013

AKZ101-111-080400-

...SNOW AND BLOWING SNOW AFFECTING THE GLENN HIGHWAY THROUGH EARLY
THIS EVENING...

SNOW WILL CONTINUE TO FALL THROUGHOUT THE ANCHORAGE BOWL THROUGH
EARLY THIS EVENING. THE COMBINATION OF FALLING AND BLOWING SNOW WILL
CONTINUE TO PRODUCE REDUCED VISIBILITIES AND DIFFICULT DRIVING
CONDITIONS ALONG THE GLENN HIGHWAY FROM ANCHORAGE TO THE MATANUSKA
VALLEY DURING THE EVENING COMMUTE.

FOR THE LATEST UPDATES TO THIS FORECAST PLEASE VISIT
WWW.WEATHER.GOV/ANCHORAGE.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
337 PM AKST THU FEB 07 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0330 PM     SNOW             7 NW BENTALIT           61.62N 150.75W
02/07/2013  M7.0 INCH                           AK   TRAINED SPOTTER

            EAGLE SONG LODGE RECEIVED 7 INCHES OF SNOW FROM 9AM TO
            330 PM.

&&

DSTRICKL