Alert archive / Alaska / Gale Warnings in 2015
Gale Warning 316, NWS Anchorage, AK
NWS Anchorage, AK issued this gale warning at Apr 16, 2015, 3:43 AM AKDT. It was in force for 3 days. 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 16, 2015, 3:43 AM AKDT (11:43 UTC)
- Expired
- Apr 19, 2015, 3:09 PM AKDT
- In force
- 3 days
- Issued by
- NWS Anchorage, AK
The text
As transmitted, in the capitals the NWS used until 2016.
078 FZAK61 PAFC 161143 OFFAER OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 343 AM AKDT THU APR 16 2015 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. PKZ399-170115- 343 AM AKDT THU APR 16 2015 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A 999 MB LOW OVER THE KENAI PENINSULA WILL MOVE FURTHER INLAND AND DISSIPATE THROUGH THE THU. A STRONG FRONT WILL ENTER THE SOUTHERN GULF FRI MORNING AND MOVE TO THE NORTH GULF COAST LATE FRI NIGHT. $$ PKZ351-170115- GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W- 343 AM AKDT THU APR 16 2015 ...GALE WARNING FRIDAY... .TODAY...SW WIND 15 TO 25 KT. SEAS 8 TO 13 FT. .TONIGHT...SW WIND 20 KT. SEAS 9 FT. .FRI...S WIND 15 TO 30 KT BECOMING SE 30 TO 45 KT IN THE AFTERNOON. SEAS 8 TO 16 FT. RAIN. .FRI NIGHT...SE WIND 35 TO 50 KT. SEAS 14 TO 22 FT. .SAT THROUGH SUN...S WIND 20 TO 30 KT. SEAS 13 TO 21 FT. .MON...SW WIND 20 KT. SEAS 6 TO 11 FT. $$ PKZ352-170115- GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF 144W- 343 AM AKDT THU APR 16 2015 ...GALE WARNING FRIDAY... .TODAY...SW WIND 25 KT. SEAS 8 TO 13 FT. .TONIGHT...SW WIND 15 TO 25 KT. SEAS 6 TO 9 FT. .FRI...SE WIND 30 TO 45 KT. SEAS 11 TO 19 FT. RAIN. .FRI NIGHT...SE WIND 30 TO 45 KT. SEAS 17 TO 23 FT. .SAT THROUGH SUN...S WIND 20 TO 35 KT. SEAS 12 TO 20 FT. .MON...SW WIND 15 TO 25 KT. SEAS 6 TO 10 FT. $$
8 follow-up statements
141 FZAK61 PAFC 161143 CCA OFFAER OFFSHORE WATERS FORECAST...CORRECTEDD NATIONAL WEATHER SERVICE ANCHORAGE AK 343 AM AKDT THU APR 16 2015 RETRANSMISSION OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ399-170115- 343 AM AKDT THU APR 16 2015 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A 999 MB LOW OVER THE KENAI PENINSULA WILL MOVE FURTHER INLAND AND DISSIPATE THROUGH THE THU. A STRONG FRONT WILL ENTER THE SOUTHERN GULF FRI MORNING AND MOVE TO THE NORTH GULF COAST LATE FRI NIGHT. $$ PKZ351-170115- GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W- 343 AM AKDT THU APR 16 2015 ...GALE WARNING FRIDAY... .TODAY...SW WIND 15 TO 25 KT. SEAS 8 TO 13 FT. .TONIGHT...SW WIND 20 KT. SEAS 9 FT. .FRI...S WIND 15 TO 30 KT BECOMING SE 30 TO 45 KT IN THE AFTERNOON. SEAS 8 TO 16 FT. RAIN. .FRI NIGHT...SE WIND 35 TO 50 KT. SEAS 14 TO 22 FT. .SAT THROUGH SUN...S WIND 20 TO 30 KT. SEAS 13 TO 21 FT. .MON...SW WIND 20 KT. SEAS 6 TO 11 FT. $$ PKZ352-170115- GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF 144W- 343 AM AKDT THU APR 16 2015 ...GALE WARNING FRIDAY... .TODAY...SW WIND 25 KT. SEAS 8 TO 13 FT. .TONIGHT...SW WIND 15 TO 25 KT. SEAS 6 TO 9 FT. .FRI...SE WIND 30 TO 45 KT. SEAS 11 TO 19 FT. RAIN. .FRI NIGHT...SE WIND 30 TO 45 KT. SEAS 17 TO 23 FT. .SAT THROUGH SUN...S WIND 20 TO 35 KT. SEAS 12 TO 20 FT. .MON...SW WIND 15 TO 25 KT. SEAS 6 TO 10 FT. $$
839 FZAK61 PAFC 162305 OFFAER OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 305 PM AKDT THU APR 16 2015 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. PKZ399-171330- 305 PM AKDT THU APR 16 2015 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A 977 MB LOW SOUTH OF THE ALEUTIANS WILL TRACK TO 54N 162W SAT AFTERNOON AT 973 MB. THE ASSOCIATED WEATHER FRONT WILL CROSS THE WESTERN GULF THU NIGHT AND MOVE INTO THE CENTRAL GULF BY FRI AFTERNOON. THE FRONT WILL THEN MOVE INTO THE EASTERN GULF FRI NIGHT. $$ PKZ351-171330- GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W- 305 PM AKDT THU APR 16 2015 ...STORM WARNING FRIDAY NIGHT... .TONIGHT...SW WIND 15 TO 25 KT. SEAS 9 FT. .FRI...S WIND 15 TO 25 KT BECOMING SE 30 TO 45 KT IN THE AFTERNOON. SEAS 7 FT BUILDING TO 16 FT IN THE AFTERNOON. RAIN. .FRI NIGHT...SE WIND 35 TO 50 KT. SEAS 14 TO 22 FT. RAIN. .SAT...SE WIND 30 KT. SEAS 16 TO 21 FT. .SAT NIGHT...S WIND 20 TO 30 KT. SEAS 16 FT. .SUN...S WIND 15 TO 30 KT. SEAS 13 TO 18 FT. .MON THROUGH TUE...SW WIND 10 TO 20 KT. SEAS 7 TO 12 FT. $$ PKZ352-171330- GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF 144W- 305 PM AKDT THU APR 16 2015 ...GALE WARNING FRIDAY AND FRIDAY NIGHT... .TONIGHT...SW WIND 15 TO 25 KT. SEAS 7 TO 10 FT. .FRI...SE WIND 30 TO 45 KT. SEAS 11 TO 19 FT. RAIN. .FRI NIGHT...S WIND 30 TO 45 KT. SEAS 17 TO 23 FT. RAIN. .SAT...S WIND 30 KT. SEAS 17 TO 20 FT. .SAT NIGHT...S WIND 25 TO 35 KT. SEAS 15 TO 19 FT. .SUN...SW WIND 20 TO 35 KT. SEAS 13 TO 20 FT. .MON THROUGH TUE...SW WIND 10 TO 25 KT. SEAS 8 TO 13 FT. $$
666 FZAK61 PAFC 171126 OFFAER OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 326 AM AKDT FRI APR 17 2015 OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ399-180130- 326 AM AKDT FRI APR 17 2015 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A FRONT WILL ENTER THE SOUTHWESTERN GULF FRI AFTERNOON AND REACH THE NORTHERN GULF SAT MORNING. $$ PKZ351-180130- GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W- 326 AM AKDT FRI APR 17 2015 ...GALE WARNING THROUGH TONIGHT... .TODAY...S WIND 15 TO 30 KT BECOMING SE 30 TO 45 KT IN THE AFTERNOON. SEAS 7 FT BUILDING TO 9 TO 14 FT IN THE AFTERNOON. RAIN. .TONIGHT...SE WIND 30 TO 45 KT. SEAS 13 TO 21 FT. RAIN. .SAT...SE WIND 30 KT. SEAS 17 FT. RAIN. .SAT NIGHT...SE WIND 30 KT. SEAS 15 FT. .SUN...S WIND 15 TO 30 KT. SEAS 13 TO 18 FT. .MON THROUGH TUE...SW WIND 10 TO 20 KT. SEAS 7 TO 12 FT. $$ PKZ352-180130- GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF 144W- 326 AM AKDT FRI APR 17 2015 ...GALE WARNING THROUGH TONIGHT... .TODAY...SE WIND 30 TO 45 KT. SEAS 9 TO 17 FT. RAIN. .TONIGHT...SE WIND 30 TO 45 KT BECOMING S 20 TO 35 KT AFTER MIDNIGHT. SEAS 15 TO 21 FT. RAIN. .SAT...S WIND 30 KT. SEAS 17 FT. RAIN. .SAT NIGHT...S WIND 25 TO 35 KT. SEAS 13 TO 16 FT. .SUN...SW WIND 20 TO 35 KT. SEAS 14 TO 20 FT. .MON THROUGH TUE...SW WIND 10 TO 25 KT. SEAS 8 TO 13 FT. $$
756 FZAK61 PAFC 172301 OFFAER OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 301 PM AKDT FRI APR 17 2015 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. PKZ399-181330- 301 PM AKDT FRI APR 17 2015 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A WEATHER FRONT OVER THE SOUTHWESTERN GULF WILL REACH THE NORTH GULF COAST BY SAT MORNING. ANOTHER WEATHER FRONT WILL MOVE INTO THE SOUTHWEST GULF SUN MORNING AND REACH THE NORTH GULF COAST SUN AFTERNOON. A 980 MB LOW NEAR 54N 159W SAT EVENING WILL MOVE INLAND ACROSS THE ALASKA PENINSULA EARLY SUN MORNING. $$ PKZ351-181330- GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W- 301 PM AKDT FRI APR 17 2015 ...GALE WARNING TONIGHT... .TONIGHT...SE WIND 30 TO 45 KT. SEAS 13 TO 21 FT. RAIN. .SAT...SE WIND 30 KT. SEAS 18 FT. .SAT NIGHT...SE WIND 30 KT. SEAS 16 FT. RAIN. .SUN...S WIND 30 KT. SEAS 14 TO 18 FT. .SUN NIGHT...S WIND 20 TO 30 KT. SEAS 14 TO 17 FT. .MON...SW WIND 15 TO 25 KT. SEAS 8 TO 13 FT. .TUE THROUGH WED...SE WIND 10 TO 20 KT. SEAS 5 TO 8 FT. $$ PKZ352-181330- GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF 144W- 301 PM AKDT FRI APR 17 2015 ...GALE WARNING TONIGHT AND SATURDAY NIGHT... .TONIGHT...SE WIND 30 TO 45 KT BECOMING S 20 TO 35 KT AFTER MIDNIGHT. SEAS 16 TO 21 FT. RAIN. .SAT...S WIND 30 KT. SEAS 18 FT. .SAT NIGHT...S WIND 25 TO 35 KT. SEAS 14 TO 17 FT. .SUN...S WIND 25 TO 35 KT. SEAS 14 TO 19 FT. .SUN NIGHT...SW WIND 20 TO 30 KT. SEAS 14 TO 17 FT. .MON...SW WIND 10 TO 25 KT. SEAS 8 TO 13 FT. .TUE THROUGH WED...SW WIND 10 TO 20 KT. SEAS 3 TO 8 FT. $$
721 FZAK61 PAFC 181149 OFFAER OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 349 AM AKDT SAT APR 18 2015 OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ399-190230- 349 AM AKDT SAT APR 18 2015 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A FRONT OVER THE CENTRAL GULF WILL REACH THE NORTH GULF COAST SAT AFTERNOON. ANOTHER FRONT WILL MOVE INTO THE SOUTHWEST GULF SUN MORNING AND REACH THE NORTH GULF COAST SUN AFTERNOON. $$ PKZ351-190230- GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W- 349 AM AKDT SAT APR 18 2015 .TODAY...SE WIND 30 KT. SEAS 16 FT. RAIN. .TONIGHT...SE WIND 30 KT. SEAS 16 FT. RAIN. .SUN...S WIND 30 KT. SEAS 15 FT. .SUN NIGHT...SW WIND 15 TO 25 KT. SEAS 13 TO 16 FT. .MON...SW WIND 20 KT. SEAS 8 TO 13 FT. .TUE THROUGH WED...SE WIND 20 KT. SEAS 8 TO 13 FT. $$ PKZ352-190230- GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF 144W- 349 AM AKDT SAT APR 18 2015 ...GALE WARNING TONIGHT... .TODAY...S WIND 30 KT. SEAS 16 FT. .TONIGHT...S WIND 25 TO 35 KT. SEAS 14 TO 17 FT. RAIN. .SUN...S WIND 30 KT. SEAS 13 TO 18 FT. .SUN NIGHT...SW WIND 15 TO 25 KT. SEAS 13 TO 17 FT. .MON...W WIND 15 TO 25 KT. SEAS 8 TO 13 FT. .TUE...S WIND 20 KT. SEAS 6 TO 9 FT. .WED...SW WIND 15 KT. SEAS 9 TO 13 FT. $$
434 FZAK61 PAFC 182257 OFFAER OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 257 PM AKDT SAT APR 18 2015 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. PKZ399-191315- 257 PM AKDT SAT APR 18 2015 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A FRONT ALONG THE NORTH GULF COAST WILL DISSIPATE AND MOVE INLAND THIS EVENING. ANOTHER FRONT WILL MOVE INTO THE SOUTHWEST GULF SUN MORNING AND DISSIPATE OVER THE NORTH GULF COAST SUN EVENING. $$ PKZ351-191315- GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W- 257 PM AKDT SAT APR 18 2015 .TONIGHT...S WIND 20 TO 30 KT. SEAS 16 FT. RAIN. .SUN...S WIND 30 KT. SEAS 14 TO 18 FT. .SUN NIGHT...SW WIND 15 TO 30 KT. SEAS 15 FT. .MON...W WIND 15 TO 25 KT. SEAS 10 TO 13 FT. .MON NIGHT...SW WIND 15 TO 25 KT. SEAS 7 TO 10 FT. .TUE THROUGH THU...E WIND 15 TO 30 KT. SEAS 8 TO 13 FT. $$ PKZ352-191315- GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF 144W- 257 PM AKDT SAT APR 18 2015 ...GALE WARNING THROUGH SUNDAY... .TONIGHT...S WIND 20 TO 35 KT. SEAS 15 FT. RAIN. .SUN...S WIND 25 TO 35 KT. SEAS 14 TO 19 FT. .SUN NIGHT...SW WIND 15 TO 30 KT. SEAS 15 FT. .MON...W WIND 25 KT. SEAS 9 TO 14 FT. .MON NIGHT...SW WIND 15 TO 25 KT. SEAS 7 TO 10 FT. .TUE THROUGH THU...SE WIND 15 TO 30 KT. SEAS 8 TO 16 FT. $$
101 FZAK61 PAFC 191153 OFFAER OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 353 AM AKDT SUN APR 19 2015 OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ399-200200- 353 AM AKDT SUN APR 19 2015 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A FRONT ALONG THE NORTH GULF COAST WILL MOVE INLAND THIS MORNING AND WEAKEN. ANOTHER FRONT NEAR THE SOUTHWEST GULF WILL SLOWLY WEAKEN AS IT MOVES TO THE NORTHERN GULF COAST BY MON MORNING. $$ PKZ351-200200- GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W- 353 AM AKDT SUN APR 19 2015 .TODAY...S WIND 30 KT. SEAS 13 TO 16 FT. .TONIGHT...S WIND 15 TO 30 KT. SEAS 14 FT. .MON...W WIND 15 TO 25 KT. SEAS 12 FT. .MON NIGHT...SW WIND 20 TO 30 KT. SEAS 8 TO 11 FT. .TUE...S WIND 20 TO 35 KT. SEAS 8 TO 13 FT. .WED...E WIND 20 TO 35 KT. SEAS 10 TO 15 FT. .THU...E WIND UP TO 20 KT. SEAS 6 TO 11 FT. $$ PKZ352-200200- GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF 144W- 353 AM AKDT SUN APR 19 2015 ...GALE WARNING TODAY... .TODAY...S WIND 25 TO 35 KT. SEAS 13 TO 17 FT. .TONIGHT...SW WIND 20 TO 30 KT. SEAS 12 TO 15 FT. .MON...W WIND 20 TO 30 KT. SEAS 12 FT. .MON NIGHT...SW WIND 25 KT. SEAS 7 TO 10 FT. .TUE...S WIND 20 TO 35 KT. SEAS 8 TO 16 FT. .WED...E WIND 20 TO 35 KT. SEAS 11 TO 17 FT. .THU...SE WIND 10 TO 20 KT. SEAS 7 TO 12 FT. $$
796 FZAK61 PAFC 192309 OFFAER OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 309 PM AKDT SUN APR 19 2015 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. PKZ399-201315- 309 PM AKDT SUN APR 19 2015 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A COLD FRONT OVER THE SOUTHWEST GULF WILL WEAKEN AS IT MOVES TO THE NORTHERN TO EASTERN GULF ON MON. $$ PKZ351-201315- GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W- 309 PM AKDT SUN APR 19 2015 .TONIGHT...S WIND 15 TO 30 KT. SEAS 14 TO 17 FT. .MON...W WIND 15 TO 25 KT. SEAS 12 FT. .MON NIGHT...SW WIND 25 KT. SEAS 10 FT. .TUE...S WIND 25 KT. SEAS 8 FT. .TUE NIGHT...SE WIND 20 TO 35 KT. SEAS 9 TO 17 FT. .WED...E WIND 25 TO 40 KT. SEAS 13 TO 21 FT. .THU THROUGH FRI...SE WIND 10 TO 20 KT. SEAS 8 TO 13 FT. $$ PKZ352-201315- GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF 144W- 309 PM AKDT SUN APR 19 2015 .TONIGHT...S WIND 30 KT BECOMING W AFTER MIDNIGHT. SEAS 16 FT. .MON...W WIND 25 KT. SEAS 10 TO 13 FT. .MON NIGHT...SW WIND 15 TO 25 KT. SEAS 8 TO 11 FT. .TUE...S WIND 25 KT. SEAS 7 TO 11 FT. .TUE NIGHT...SE WIND 25 TO 40 KT. SEAS 10 TO 18 FT. .WED...NE WIND 25 TO 40 KT. SEAS 12 TO 20 FT. .THU THROUGH FRI...SE WIND 10 TO 20 KT. SEAS 6 TO 11 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 15, 4:47 PM AKDT, 10 hours 56 minutes earlier.
Area forecast discussion, Apr 15, 4:47 PM AKDT, 10 hours 56 minutes before
SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ANCHORAGE AK 447 PM AKDT WED APR 15 2015 .ANALYSIS AND UPPER LEVELS... THERE IS A VERTICALLY STACKED LOW OVER THE NORTHWEST GULF OF ALASKA WITH A TRAILING UPPER LEVEL TROUGH OVER THE ALASKA PENINSULA. MOST OF THE PRECIPITATION WITH THESE SYSTEMS IS CURRENTLY LIMITED TO AREAS NEAR THE COAST. THERE IS AN UPPER LOW SOUTH OF THE WESTERN ALEUTAINS MOVING QUICKLY EASTWARD. ITS ASSOCIATED SURFACE LOW IS TO THE SOUTH OF THE UPPER LOW AND IS STILL DEEPENING. WEAK HIGH PRESSURE IS OVER THE BERING SEA STRETCHING EAST OVER CENTRAL ALASKA. THE MAIN JET STREAM CONTINUES TO BE STRONG AND FAIRLY ZONAL OVER THE NORTH PACIFIC ALONG ABOUT 45 DEGREES NORTH LATITUDE. && .MODEL DISCUSSION... THE MODELS ARE IN VERY GOOD AGREEMENT. WE GENERALLY PREFER THE HIGH RESOLUTION MODELS EARLY (NAM AND GEM REGIONAL) DUE TO THEIR BETTER HANDLING OF SMALL SCALE DETAILS THEN MORE TOWARDS THE ECMWF. THE MAIN DIFFERENCES INVOLVE PRECIPITATION TYPE AND AMOUNT. THIS LOWERS THE CONFIDENCE A BIT BUT IT IS STILL A BIT ABOVE NORMAL TODAY. && .SHORT TERM FORECAST SOUTHCENTRAL ALASKA (DAYS 1 AND 2)... WIDESPREAD PRECIPITATION ALONG THE GULF COAST WILL BEGIN TO SPREAD ACROSS THE MOUNTAINS TO INTERIOR PORTIONS OF SOUTH CENTRAL AK LATE TONIGHT INTO THURSDAY AS THE LOW OVER THE GULF PUSHES INLAND OVER THE KENAI PENINSULA AND TRACKS INTO THE SUSITNA VALLEY. THE AMOUNT OF COLD AIR ASSOCIATED WITH THIS SYSTEM WILL BE SOMEWHAT LIMITED KEEPING THE PRECIPITATION TYPE MOSTLY RAIN WITH SNOW MIXING IN AT TIMES THROUGH THURSDAY MORNING. PRESSURE RISES BEHIND THE DEPARTING LOW WILL LEAD TO THE DEVELOPMENT OF STRONG GAP WINDS THURSDAY AFTERNOON LASTING THROUGH THURSDAY NIGHT. A WEAK UPPER TROUGH LIFTING NORTH THROUGH THE GULF OF ALASKA WILL BRING ANOTHER CHANCE FOR PRECIPITATION ON THURSDAY NIGHT WITH ANY PRECIPITATION CHANGING OVER TO ALL SNOW AS COLDER AIR FILTERS BACK INTO THE REGION. SHOWERS WILL THEN LINGER THROUGH FRIDAY AHEAD OF THE NEXT SYSTEM TRACKING INTO THE GULF FRIDAY NIGHT. && .SHORT TERM FORECAST SOUTHWEST ALASKA (DAYS 1 AND 2)... THE LOW JUST EAST OF KODIAK ISLAND WILL MOVE INTO THE KENAI PENINSULA BY LATE WEDNESDAY EVENING. THIS SYSTEM WILL MOVE FARTHER INLAND INTO MATSU VALLEY BY THURSDAY BEFORE DISSIPATING BY FRIDAY. THIS WILL RESULT IN CONTINUED DRIER CONDITIONS WITH THE NORTHERLY WINDS. THERE WILL BE SCATTERED SNOW SHOWERS ALONG THE ALEUTIAN RANGE/ALASKA PENINSULA. THE EASTERN INTERIOR OF THE LOWER KUSKOKWIM VALLEY WILL HAVE SCATTERED SNOW SHOWERS EXCEPT FOR NUMEROUS SNOW SHOWERS BY THURSDAY EVENING WITH THE REMNANTS OF THE LOW PRESSURE SYSTEM DISSIPATING. BY FRIDAY AFTERNOON A WEATHER FRONT ASSOCIATED WITH A NORTH PACIFIC LOW WILL BE POSITIONED THROUGH THE BRISTOL BAY INTERIOR. THIS FRONT WILL BRING WARM TEMPERATURES HEADING INTO THE WEEKEND. AS THIS FRONT TRACKS NORTHWARD BY SATURDAY MORNING IT WILL BE IN THE KUSKOKWIM DELTA REGION. THIS WILL BRING GUSTY NORTHERLY WINDS FROM BETHEL TO THE COASTLINE AND ACCOMPANIED BY A LARGE SWATH OF MOISTURE. THE SYNOPTIC CONDITIONS ARE SETTING UP FOR THE POTENTIAL FOR BLOWING SNOW ADVISORY FOR THE KUSKOKWIM DELTA BY SATURDAY MORNING. && .SHORT TERM FORECAST BERING SEA/ALEUTIANS (DAYS 1 AND 2)... THE BRISTOL BAY REGION AND THE EASTERN ALEUTIAN CHAIN WILL HAVE NORTHERLY WINDS WITH ISOLATED SNOW AND RAIN SHOWERS THIS EVENING. UPSTREAM THERE IS A WEAK RIDGE OVER THE CENTRAL ALEUTIANS/BERING SEA THAT WILL MOVE INTO THE EASTERN BERING SEA THROUGH THURSDAY. FARTHER UPSTREAM JUST SOUTH OF THE WESTERN ALEUTIANS IS A STORM FORCE LOW. THIS SYSTEM WILL TRACK EASTWARD RUNNING PARALLEL TO THE ALEUTIAN CHAIN. BY THURSDAY THIS LOW WILL BE LOCATED SOUTH OF NIKOLSKI. RESULTING IN GUSTY GALE FORCE EASTERLY WINDS TO THE CENTRAL ALEUTIANS ACCOMPANIED BY A LARGE SWATH OF MOISTURE. BY FRIDAY EVENING THIS SYSTEM WILL BE LOCATED SOUTH OF DUTCH HARBOR. AN ASSOCIATED FRONTAL BOUNDARY WILL BE LOCATED THROUGH THE EASTERN BERING SEA AND INTO THE BRISTOL BAY INTERIOR. THIS WILL PRODUCE GUSTY NORTHEAST WINDS AND SHIFT MORE NORTHERLY BY SATURDAY MORNING. THIS WILL RESULT IN TEMPERATURES ABOVE FREEZING IN FRONT OF THE LOW OVER THE EASTERN ALEUTIANS. THERE WILL BE COOLER TEMPERATURES ON THE BACKSIDE OF THE LOW WITH A WINTRY MIX OF RAIN/SNOW OVER THE CENTRAL ALEUTIANS. THE COLDER TEMPERATURES WILL BE FARTHER NORTH INTO THE CENTRAL BERING. THE SYNOPTIC FEATURES ARE ALIGNING UP FOR THE POTENTIAL FOR BLOWING SNOW ADVISORY OR BLIZZARD WARNING WITH THE COLDER TEMPERATURES A LARGE PLUME OF MOISTURE AND GUSTY NORTHERLY WINDS BY SATURDAY MORNING FOR THE PRIBILOF ISLANDS. && .LONG TERM FORECAST (DAYS 3 THROUGH 7)... THE DEEP LOW SOUTH OF THE ALEUTIANS WILL TURN NORTH SATURDAY AND MOVE UP ALONG THE WEST COAST OF THE STATE. THIS WILL BRING IN CONTINUED WARM SOUTHERLY FLOW TO THE SOUTHCENTRAL INTO MONDAY WHEN THE SURFACE LOW DISSIPATES. ON THE WESTERN SIDE OF THE LOW OVER THE BERING COLD NORTHERLY FLOW WILL DOMINATE. MODEL GUIDANCE IS IN DECENT AGREEMENT WITH THIS OVERALL SYNOPTIC PATTERN. HOWEVER THERE ARE DIFFERENCES WITH HOW ELONGATED THE LOW BECOMES ALONG THE WEST COAST WHICH WILL IMPACT THE STRENGTH OF THE WINDS CIRCULATING AROUND THE LOW ESPECIALLY ON THE SOUTHERN SIDE NEAR BRISTOL BAY. A MORE CONSOLIDATED LOW CENTER IS THE PREFERRED CHOICE WITH THIS SYSTEM. && .AFC WATCHES/WARNINGS/ADVISORIES... PUBLIC...NONE. MARINE...NONE. FIRE WEATHER...NONE. && SYNOPSIS AND MODEL DISCUSSION...BL SOUTHCENTRAL ALASKA...CB SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...PD LONG TERM...DK
The office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 3:41 AM AKDT | Heavy Freezing Spray Warning | AFC | 3 days | |
| Apr 16, 3:49 AM AKDT | Gale Warning | AFC | 3 days | |
| Apr 16, 3:49 AM AKDT | Small Craft Advisory | AFC | 11 hr | |
| Apr 16, 3:49 AM AKDT | Storm Warning | AFC | 48 hr | |
| Apr 16, 4:03 AM AKDT | Brisk Wind Advisory | AFC | 12 hr | |
| Apr 16, 4:03 AM AKDT | Gale Warning | AFC | 4 days | |
| Apr 16, 4:03 AM AKDT | Small Craft Advisory | AFC | 4 days | |
| Apr 16, 4:03 AM AKDT | Heavy Freezing Spray Warning | AFC | 3 days | |
| Apr 16, 3:05 PM AKDT | Storm Warning | AFC | 12 hr | |
| Apr 16, 3:06 PM AKDT | Gale Warning | AFC | 3 days | |
| Apr 16, 3:06 PM AKDT | Small Craft Advisory | AFC | 4 days | |
| Apr 16, 3:06 PM AKDT | Storm Warning | AFC | 48 hr | |
| Apr 16, 3:08 PM AKDT | Gale Warning | AFC | 60 hr | |
| Apr 16, 3:38 PM AKDT | Gale Warning | AFC | 71 hr |
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.