Alert archive / Alaska / Gale Warnings in 2023
Gale Warning 98, NWS Anchorage, AK
NWS Anchorage, AK issued this gale warning at Feb 16, 2023, 3:41 AM AKST. It was in force for 5 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
- Feb 16, 2023, 3:41 AM AKST (12:41 UTC)
- Expired
- Feb 21, 2023, 3:20 AM AKST
- In force
- 5 days
- Issued by
- NWS Anchorage, AK
The text
As transmitted.
805 FZAK61 PAFC 161241 OFFAER Offshore Waters Forecast National Weather Service Anchorage AK 341 AM AKST Thu Feb 16 2023 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. PKZ399-170215- 341 AM AKST Thu Feb 16 2023 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A strong front enters the western Gulf Thursday morning and reaches the central Gulf Thursday afternoon. A 993 mb low forms near 59N 150W Friday morning and moves inland towards Prince William Sound at 995 mb through Saturday morning. $$ PKZ351-170215- Gulf of Alaska Offshore North of 57N and West of 144W- 341 AM AKST Thu Feb 16 2023 ...GALE WARNING FRIDAY... .TODAY...SW wind 10 to 20 kt. Seas 8 to 11 ft. .TONIGHT...SE wind 15 to 25 kt. Seas 7 ft. Rain. .FRI...W wind 25 to 40 kt. Seas 11 to 19 ft. .FRI NIGHT...SW wind 20 to 35 kt. Seas 11 to 19 ft. .SAT...SW wind 25 to 40 kt. Seas 9 to 16 ft. .SUN THROUGH MON...NW wind 25 to 40 kt. Seas 10 to 18 ft. $$ PKZ352-170215- Gulf of Alaska Offshore South of 57N North of 55N and West of 144W- 341 AM AKST Thu Feb 16 2023 ...GALE WARNING TONIGHT AND FRIDAY... .TODAY...S wind 10 to 20 kt. Seas 6 to 11 ft. .TONIGHT...S wind 15 to 25 kt becoming SW 20 to 35 kt after midnight. Seas 7 to 12 ft. Rain. .FRI...W wind 20 to 35 kt. Seas 9 to 17 ft building to 16 to 19 ft in the afternoon. .FRI NIGHT...SW wind 15 to 30 kt. Seas 12 to 18 ft. .SAT THROUGH MON...NW wind 20 to 35 kt. Seas 9 to 17 ft. $$
10 follow-up statements
008 FZAK61 PAFC 170028 OFFAER Offshore Waters Forecast National Weather Service Anchorage AK 328 PM AKST Thu Feb 16 2023 Offshore waters forecast for the Gulf of Alaska West of 144W Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ399-171400- 328 PM AKST Thu Feb 16 2023 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A 995 mb low develops over Kodiak Island tonight and moves to 59N 148W Fri morning at 997 mb then moves to 59N 143W at 1001 mb Fri afternoon. A 997 mb low forms at 59N 152W Sat morning and then moves to 60N 147W at 999 mb Sat afternoon. $$ PKZ351-171400- Gulf of Alaska Offshore North of 57N and West of 144W- 328 PM AKST Thu Feb 16 2023 ...GALE WARNING FRIDAY... .TONIGHT...SE wind 15 to 25 kt. Seas 7 ft. Rain. .FRI...W wind 30 to 45 kt. Seas 8 to 13 ft building to 14 to 19 ft in the afternoon. .FRI NIGHT...W wind 15 to 30 kt becoming S 10 to 20 kt after midnight. Seas 9 to 17 ft. Rain. .SAT...SW wind 15 to 30 kt. Seas 9 to 17 ft. .SAT NIGHT...W wind 25 to 35 kt. Seas 15 to 18 ft. .SUN THROUGH TUE...NW wind 20 to 35 kt. Seas 9 to 17 ft. $$ PKZ352-171400- Gulf of Alaska Offshore South of 57N North of 55N and West of 144W- 328 PM AKST Thu Feb 16 2023 ...GALE WARNING THROUGH FRIDAY... .TONIGHT...SW wind 15 to 25 kt becoming 20 to 35 kt after midnight. Seas 8 to 13 ft. Rain. .FRI...W wind 20 to 35 kt. Seas 10 to 16 ft. .FRI NIGHT...SW wind 15 to 30 kt. Seas 11 to 16 ft. Rain. .SAT...SW wind 30 kt. Seas 13 to 18 ft. .SAT NIGHT...W wind 25 to 35 kt. Seas 14 to 18 ft. .SUN THROUGH TUE...NW wind 15 to 30 kt. Seas 8 to 16 ft. $$
277 FZAK61 PAFC 171245 OFFAER Offshore Waters Forecast National Weather Service Anchorage AK 345 AM AKST Fri Feb 17 2023 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. PKZ399-180230- 345 AM AKST Fri Feb 17 2023 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A 997 mb low at 59N 148W Friday moves to 59N 143W at 1001 mb Friday afternoon and then moves inland. Another front enters the western Gulf Friday night. A 997 mb low forms at 59N 152W Saturday morning and then moves to 60N 147W at 999 mb Saturday afternoon. $$ PKZ351-180230- Gulf of Alaska Offshore North of 57N and West of 144W- 345 AM AKST Fri Feb 17 2023 ...STORM WARNING TODAY... .TODAY...W wind 35 to 50 kt. Seas 8 to 16 ft building to 15 to 22 ft in the afternoon. Rain. .TONIGHT...SW wind 15 to 30 kt becoming SE late. Seas 11 to 19 ft. Rain. .SAT...SW wind 20 to 35 kt increasing to 30 to 40 kt in the afternoon. Seas 11 to 19 ft. .SAT NIGHT...W wind 30 to 40 kt. Seas 17 to 20 ft. .SUN THROUGH TUE...NW wind 20 to 35 kt. Seas 9 to 17 ft. $$ PKZ352-180230- Gulf of Alaska Offshore South of 57N North of 55N and West of 144W- 345 AM AKST Fri Feb 17 2023 ...GALE WARNING THROUGH SATURDAY... .TODAY...W wind 30 to 45 kt. Seas 10 to 18 ft building to 16 to 20 ft in the afternoon. .TONIGHT...S wind 20 to 35 kt. Seas 13 to 18 ft. .SAT...SW wind 35 kt. Seas 14 to 20 ft. .SAT NIGHT...W wind 25 to 40 kt. Seas 15 to 20 ft. .SUN THROUGH TUE...NW wind 20 to 35 kt. Seas 9 to 17 ft. $$
676 FZAK61 PAFC 180013 OFFAER Offshore Waters Forecast National Weather Service Anchorage AK 313 PM AKST Fri Feb 17 2023 Offshore waters forecast for the Gulf of Alaska West of 144W Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ399-181445- 313 PM AKST Fri Feb 17 2023 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A 998 mb low at 59N 140W exits into Southeast Alaska Sat morning. A 999 mb low forms over Kodiak City Sat morning and moves to Prince William Sound at 999 mb Sat afternoon then to 60N 144W at 1012 mb Sun afternoon. $$ PKZ351-181445- Gulf of Alaska Offshore North of 57N and West of 144W- 313 PM AKST Fri Feb 17 2023 ...GALE WARNING SATURDAY AND SATURDAY NIGHT... .TONIGHT...SW wind 15 to 30 kt becoming SE late. Seas 11 to 19 ft. Rain. .SAT...SW wind 20 to 35 kt increasing to 40 kt in the afternoon. Seas 11 to 19 ft. .SAT NIGHT...W wind 40 kt. Seas 15 to 20 ft. .SUN...W wind 20 to 30 kt. Seas 12 to 15 ft. .SUN NIGHT...W wind 15 to 30 kt. Seas 9 to 13 ft. .MON THROUGH TUE...NW wind 15 to 30 kt. Seas 9 to 14 ft. .WED...SW wind 10 to 20 kt. Seas 6 ft. $$ PKZ352-181445- Gulf of Alaska Offshore South of 57N North of 55N and West of 144W- 313 PM AKST Fri Feb 17 2023 ...GALE WARNING THROUGH SATURDAY NIGHT... .TONIGHT...S wind 20 to 35 kt. Seas 13 to 18 ft. .SAT...SW wind 35 kt. Seas 15 to 20 ft. .SAT NIGHT...W wind 25 to 35 kt. Seas 13 to 19 ft. .SUN...W wind 15 to 30 kt. Seas 9 to 15 ft. .SUN NIGHT...W wind 15 to 25 kt. Seas 10 ft. .MON THROUGH TUE...NW wind 15 to 30 kt. Seas 9 to 17 ft. .WED...SW wind 20 kt. Seas 7 ft. $$
469 FZAK61 PAFC 181244 OFFAER Offshore Waters Forecast National Weather Service Anchorage AK 344 AM AKST Sat Feb 18 2023 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. PKZ399-190215- 344 AM AKST Sat Feb 18 2023 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A 998 mb low at 59N 140W exits into Southeast Alaska by Sat morning. A 999 mb low forms over Kodiak City Sat morning. It moves to Prince William Sound at 999 mb by Sat afternoon, then to 59N 143W at 1015 mb by Mon morning. $$ PKZ351-190215- Gulf of Alaska Offshore North of 57N and West of 144W- 344 AM AKST Sat Feb 18 2023 ...GALE WARNING THROUGH TONIGHT... .TODAY...SW wind 20 to 35 kt increasing to 30 to 40 kt in the afternoon. Seas 11 to 18 ft. Rain. .TONIGHT...W wind 30 to 40 kt. Seas 16 to 20 ft. .SUN...W wind 20 to 30 kt. Seas 12 to 18 ft. .SUN NIGHT...W wind 15 to 30 kt. Seas 9 to 13 ft. .MON THROUGH TUE...W wind 20 to 35 kt. Seas 8 to 13 ft. .WED...SW wind 15 kt. Seas 5 to 8 ft. $$ PKZ352-190215- Gulf of Alaska Offshore South of 57N North of 55N and West of 144W- 344 AM AKST Sat Feb 18 2023 ...GALE WARNING THROUGH TONIGHT... .TODAY...SW wind 25 to 35 kt. Seas 14 to 20 ft. .TONIGHT...W wind 25 to 35 kt. Seas 16 to 21 ft. .SUN...W wind 15 to 30 kt. Seas 11 to 17 ft. .SUN NIGHT...NW wind 15 to 25 kt. Seas 8 to 12 ft. .MON THROUGH WED...SW wind 20 to 35 kt. Seas 8 to 13 ft. $$
465 FZAK61 PAFC 190020 OFFAER Offshore Waters Forecast National Weather Service Anchorage AK 320 PM AKST Sat Feb 18 2023 Offshore waters forecast for the Gulf of Alaska West of 144W Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ399-191430- 320 PM AKST Sat Feb 18 2023 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A 998 mb low at 60N 147W exits into Southeast Alaska at 1002 mb by Mon afternoon. Its front moves into Southeast Alaska through Mon afternoon. A weak ridge moves over the Western Gulf for Mon afternoon. $$ PKZ351-191430- Gulf of Alaska Offshore North of 57N and West of 144W- 320 PM AKST Sat Feb 18 2023 ...GALE WARNING TONIGHT... .TONIGHT...W wind 30 to 40 kt. Seas 16 to 20 ft. .SUN...W wind 20 to 30 kt. Seas 12 to 18 ft. .SUN NIGHT...W wind 15 to 30 kt. Seas 8 to 13 ft. .MON...NW wind 15 to 30 kt. Seas 8 to 13 ft. .MON NIGHT...NW wind 25 to 35 kt. Seas 9 to 14 ft. .TUE THROUGH THU...W wind 15 to 30 kt. Seas 6 to 11 ft. $$ PKZ352-191430- Gulf of Alaska Offshore South of 57N North of 55N and West of 144W- 320 PM AKST Sat Feb 18 2023 ...GALE WARNING TONIGHT... .TONIGHT...W wind 25 to 35 kt. Seas 16 to 21 ft. .SUN...W wind 15 to 30 kt. Seas 11 to 17 ft. .SUN NIGHT...NW wind 15 to 25 kt. Seas 8 to 12 ft. .MON...NW wind 20 to 30 kt. Seas 9 to 14 ft. .MON NIGHT...NW wind 20 to 35 kt. Seas 9 to 17 ft. .TUE THROUGH THU...W wind 15 to 30 kt. Seas 8 to 13 ft. $$
688 FZAK61 PAFC 191243 OFFAER Offshore Waters Forecast National Weather Service Anchorage AK 343 AM AKST Sun Feb 19 2023 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. PKZ399-200215- 343 AM AKST Sun Feb 19 2023 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A 1005 mb low and its front weaken near the Southeast Alaska coast this morning. A front lifts over the southeastern Gulf tonight. High pressure enters the Gulf from Mon morning through Tue morning. $$ PKZ351-200215- Gulf of Alaska Offshore North of 57N and West of 144W- 343 AM AKST Sun Feb 19 2023 ...GALE WARNING MONDAY... .TODAY...W wind 15 to 25 kt. Seas 11 to 16 ft. .TONIGHT...W wind 15 to 30 kt. Seas 8 to 13 ft. .MON...NW wind 20 to 35 kt. Seas 7 to 12 ft. .MON NIGHT...NW wind 25 to 40 kt. Seas 10 to 17 ft. .TUE...W wind 15 to 30 kt. Seas 7 to 12 ft. .WED THROUGH THU...W wind 10 to 20 kt. Seas 8 ft. $$ PKZ352-200215- Gulf of Alaska Offshore South of 57N North of 55N and West of 144W- 343 AM AKST Sun Feb 19 2023 ...GALE WARNING MONDAY... .TODAY...W wind 15 to 30 kt. Seas 12 to 16 ft. .TONIGHT...NW wind 15 to 30 kt. Seas 9 to 13 ft. .MON...NW wind 30 to 40 kt. Seas 10 to 15 ft. .MON NIGHT...NW wind 25 to 40 kt. Seas 10 to 18 ft. .TUE THROUGH THU...W wind 15 to 30 kt. Seas 7 to 12 ft. $$
720 FZAK61 PAFC 200017 OFFAER Offshore Waters Forecast National Weather Service Anchorage AK 317 PM AKST Sun Feb 19 2023 Offshore waters forecast for the Gulf of Alaska West of 144W Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ399-201545- 317 PM AKST Sun Feb 19 2023 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A front crosses the southeastern Gulf tonight. High pressure enters the Gulf from Mon morning through Tue afternoon. $$ PKZ351-201545- Gulf of Alaska Offshore North of 57N and West of 144W- 317 PM AKST Sun Feb 19 2023 ...GALE WARNING MONDAY AND MONDAY NIGHT... .TONIGHT...NW wind 10 to 25 kt. Seas 8 to 11 ft. .MON...NW wind 25 to 40 kt. Seas 8 to 13 ft. .MON NIGHT...NW wind 20 to 35 kt. Seas 10 to 16 ft. .TUE...NW wind 15 to 30 kt. Seas 8 to 13 ft. .TUE NIGHT...SW wind 10 to 20 kt. Seas 7 ft. .WED THROUGH FRI...W wind 15 to 30 kt. Seas 7 to 12 ft. $$ PKZ352-201545- Gulf of Alaska Offshore South of 57N North of 55N and West of 144W- 317 PM AKST Sun Feb 19 2023 ...GALE WARNING MONDAY AND MONDAY NIGHT... .TONIGHT...NW wind 15 to 30 kt. Seas 10 ft. .MON...NW wind 30 kt becoming 25 to 40 kt in the afternoon. Seas 11 to 15 ft. .MON NIGHT...W wind 25 to 40 kt diminishing to 20 to 30 kt after midnight. Seas 9 to 17 ft. .TUE...W wind 15 to 30 kt. Seas 8 to 13 ft. .TUE NIGHT...SW wind 10 to 20 kt. Seas 7 ft. .WED THROUGH FRI...W wind 20 to 35 kt. Seas 8 to 13 ft. $$
197 FZAK61 PAFC 201254 OFFAER Offshore Waters Forecast National Weather Service Anchorage AK 354 AM AKST Mon Feb 20 2023 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. PKZ399-210215- 354 AM AKST Mon Feb 20 2023 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... High pressure enters the Gulf this morning and persists through Wed morning. $$ PKZ351-210215- Gulf of Alaska Offshore North of 57N and West of 144W- 354 AM AKST Mon Feb 20 2023 ...GALE WARNING THROUGH TONIGHT... .TODAY...NW wind 20 to 35 kt. Seas 8 to 13 ft. .TONIGHT...NW wind 20 to 35 kt. Seas 10 to 16 ft. .TUE...NW wind 15 to 25 kt. Seas 8 to 13 ft. .TUE NIGHT...SW wind 10 to 20 kt. Seas 5 to 8 ft. .WED THROUGH THU...SW wind up to 20 kt. Seas 5 to 8 ft. .FRI...W wind 15 to 25 kt. Seas 7 to 11 ft. $$ PKZ352-210215- Gulf of Alaska Offshore South of 57N North of 55N and West of 144W- 354 AM AKST Mon Feb 20 2023 ...GALE WARNING THROUGH TONIGHT... .TODAY...NW wind 20 to 35 kt. Seas 9 to 15 ft. .TONIGHT...W wind 20 to 35 kt. Seas 9 to 17 ft. .TUE...W wind 15 to 30 kt diminishing to 10 to 20 kt in the afternoon. Seas 9 to 14 ft. .TUE NIGHT...SW wind 10 to 20 kt. Seas 8 ft. .WED THROUGH FRI...W wind 10 to 25 kt. Seas 6 to 11 ft. $$
183 FZAK61 PAFC 210020 OFFAER Offshore Waters Forecast National Weather Service Anchorage AK 320 PM AKST Mon Feb 20 2023 Offshore waters forecast for the Gulf of Alaska West of 144W Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ399-211345- 320 PM AKST Mon Feb 20 2023 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... High pressure persists through Wed morning. A weak front moves into the Western Gulf Tue night through Wed afternoon. $$ PKZ351-211345- Gulf of Alaska Offshore North of 57N and West of 144W- 320 PM AKST Mon Feb 20 2023 ...GALE WARNING TONIGHT... .TONIGHT...NW wind 20 to 35 kt. Seas 10 to 16 ft. .TUE...NW wind 15 to 25 kt diminishing to up to 15 kt in the afternoon. Seas 8 to 13 ft. .TUE NIGHT...W wind 15 kt. Seas 7 ft. .WED...SW wind up to 15 kt. Seas 5 ft. .WED NIGHT...S wind up to 15 kt. Seas 4 to 7 ft. .THU THROUGH SAT...NW wind 15 to 30 kt. Seas 7 to 12 ft. $$ PKZ352-211345- Gulf of Alaska Offshore South of 57N North of 55N and West of 144W- 320 PM AKST Mon Feb 20 2023 ...GALE WARNING TONIGHT... .TONIGHT...W wind 20 to 35 kt. Seas 9 to 17 ft. .TUE...W wind 15 to 30 kt diminishing to 10 to 20 kt in the afternoon. Seas 8 to 13 ft. .TUE NIGHT...SW wind 15 kt. Seas 8 ft. .WED...SW wind up to 15 kt. Seas 6 ft. .WED NIGHT...S wind up to 15 kt. Seas 5 to 8 ft. .THU THROUGH FRI...W wind 10 to 25 kt. Seas 7 to 11 ft. .SAT...W wind 30 kt. Seas 9 to 15 ft. $$
610 FZAK61 PAFC 211220 OFFAER Offshore Waters Forecast National Weather Service Anchorage AK 320 AM AKST Tue Feb 21 2023 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. PKZ399-220130- 320 AM AKST Tue Feb 21 2023 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... High pressure persists through Wed morning. A weak front moves into the Western Gulf tonight through Wed afternoon. Another front enters the Western Gulf Thu morning. $$ PKZ351-220130- Gulf of Alaska Offshore North of 57N and West of 144W- 320 AM AKST Tue Feb 21 2023 .TODAY...NW wind 15 to 25 kt. Seas 8 to 12 ft. .TONIGHT...W wind 15 kt. Seas 7 ft. .WED...W wind 10 to 15 kt. Seas 6 ft. .WED NIGHT...S wind up to 20 kt. Seas 6 ft. .THU THROUGH SAT...NW wind 15 to 30 kt. Seas 7 to 12 ft. $$ PKZ352-220130- Gulf of Alaska Offshore South of 57N North of 55N and West of 144W- 320 AM AKST Tue Feb 21 2023 .TODAY...W wind 15 to 30 kt diminishing to 10 to 20 kt in the afternoon. Seas 7 to 12 ft. .TONIGHT...SW wind 15 kt. Seas 7 ft. .WED...SW wind 10 to 15 kt. Seas 7 ft. .WED NIGHT...S wind up to 20 kt. Seas 5 to 8 ft. .THU THROUGH FRI...W wind 10 to 25 kt. Seas 6 to 11 ft. .SAT...W wind 20 to 35 kt. Seas 11 to 17 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 Feb 15, 4:45 PM AKST, 10 hours 56 minutes earlier.
Area forecast discussion, Feb 15, 4:45 PM AKST, 10 hours 56 minutes before
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 445 PM AKST Wed Feb 15 2023 .ANALYSIS AND UPPER LEVELS... An amplified pattern persists across the region with the jet stream tapping into sub-tropical moisture and crossing the central Aleutians and then bending over the ridge near Southwest Alaska before diving southward across the Gulf. Two shortwaves are crossing Southcentral with the first producing light snow across the western Kenai Peninsula. This snow will end this afternoon. A second shortwave is moving east into the Yukon and Southeast Alaska pushing the snow east of the area. Out west an occluded low pressure system is west of the chain with the occluded front stretching from the northern Bering through the eastern Aleutians. This is producing gales across the Bering and central and eastern Aleutians with blizzard conditions across the Pribilof Islands. && .MODEL DISCUSSION... Models are in decent agreement with the general synoptic scale pattern, but are struggling with some of the details. There are some model differences as the next storm force low moves across the central Aleutians and towards Southwest Alaska Thursday and Thursday night with the GFS the farthest south of the bunch, while the GEM is farthest north and the EC somewhere in between. The main challenge with this low is how strong the winds will be and if high winds are possible. Also depending on the track of the low will influence whether or not the Pribilofs will get strong winds and blizzard conditions on Thursday. Across the east, models differ on the movement of a triple point low forming along the front near the southern tip of the Kenai Peninsula Friday morning. The GEM models suggest a track just east of the Kenai Peninsula moving into Prince William Sound, while the GFS is farther south as it moves into the northern Gulf with the NAM and EC in between these solutions. The ensembles are also not helpful as they each favor their respective deterministic solutions. The biggest challenge this low will bring is the potential for increased snow amounts for the Anchorage area if the low tracks into Prince William Sound. && .AVIATION... PANC...VFR conditions and light winds will persist through through tonight. Tomorrow morning an approaching shortwave trough could possibly bring some light snow near the area with ceilings decreasing to MVFR. && .SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3: Tonight through Friday)... Benign weather tonight and early tomorrow will transition towards stormier weather Thursday night and Friday. Calm to light winds, with the occasional light bout of snow, will persist across Southcentral tonight as weak low pressure in the Gulf slowly dissipates. Snow chances increase later tomorrow as an upper level shortwave moves across Anchorage, the Mat-Su Valleys, and Prince William Sound. This shortwave is weak, and guidance looks to have trimmed back snow amounts a bit since the previous forecast package. Any snow that does fall is expected to be very light. The main story in the short-term continues to be a triple point low that develops near Kodiak Island Thursday night. Confidence is high that this will be a moist system, with increasing confidence that we'll see fairly strong winds, especially at elevation. This system will first impact Kodiak island Thursday afternoon, with precipitation initially starting as snow before transitioning to rain. The front will quickly move into the north Gulf coast by Friday morning, before exiting to Southeast Alaska by Friday night. Snow will be moderate to heavy at times, especially along Eastern Kenai Peninsula and Prince William Sound. A tight pressure gradient will induce strong easterly winds through Eastern Turnagain Arm and along the Anchorage Hillside. This could create hazardous conditions along Eastern Turnagain Arm/Portage Valley and in the Anchorage Hillside for early Friday morning. Stay tuned as we continue to update the forecast and hone in on these details. Otherwise, more snow could be on the way for Saturday as yet another triple point low moves along the north Gulf coast. && .SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: Tonight through Saturday)... A front moving in from the Bering Sea will reach the Southwest coast tonight. A brief period of light snow is expected from the front for the Kuskokwim Delta and the Bristol Bay coast before it tracks farther inland and decays rapidly Thursday morning. A stronger system will approach the Southwest coast Thursday afternoon and begin to move inland Thursday night. This stronger front is expected to bring more substantial snow and gusty easterly winds across much of Southwest Alaska. There will be some potential for blowing snow, especially along the coast, though temperatures are expected to increase into the 30s rapidly in Bristol Bay. The Kuskokwim Delta looks more ripe for more blowing snow, with temperatures expected to remain cooler for longer. A Winter Weather Advisory has been issued for this risk. Snow totals from this system will range from 3 to 6 inches for most locations, and the bulk of this snow will accompany the front Thursday night. As the low moves inland over the Kuskokwim Delta, winds will shift out of the southwest and are likely to reach gale force along the coast. Light snow showers are expected to accompany this onshore push, but they could be widespread enough in the Kuskokwim Delta for blowing snow and low visibility to stick around through Friday afternoon. Winds will ease through the day Friday as the low exits to the north. Then, a low tracking along the Alaska Peninsula looks to bring more snow to Bristol Bay for Saturday. && .SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 to 3: Tonight through Saturday)... A strong front extending off a deep low in the far western Bering Sea pushes east to the Southwest coast this evening. Gusty southerly winds wrapping around the low center will continue for the western Aleutians as the low tracks slowly northeast through Friday. Further east, the forecast is complicated. Models continue to have a significant spread with a low expected to develop near the central and eastern Aleutians Thursday morning. This introduces significant uncertainty with regards to its impacts. There is significant potential for high winds in association with the developing low, but the placement is still uncertain at this time. They will have the potential to occur on the south side of the low through the eastern Aleutians and southern Alaska Peninsula with cold air wrapping around the back side of the low and rapid pressure rises in its wake. The likelihood of high winds increases further east as the low strengthens along its track, though high winds are less favored along the Alaska Peninsula due to terrain blockage with a southwesterly wind direction. A High Wind Watch has been issued for the eastern Aleutians due to the remaining uncertainty. Precipitation will largely be rain with this system along the Aleutians, though some snow will be possible at the onset and as snow showers in the colder air mass behind the front. Snow is likely for the Pribilof Islands as the center is now expected to track east of the islands. Winds decrease below gale force across most of the region by Friday night as the low tracks up the Western Alaska coast. By Saturday, the Aleutians/Bering Sea will be under the influence of a cold air mass aloft as the former hurricane force low weakens over the western Bering. This will keep the region in a showery regime going into the weekend. && .LONG TERM FORECAST (Days 4 through 7: Sunday through Wednesday)... A broad upper level ridge is expected to move over Southcentral and Southwest Alaska during the extended period. Ensemble guidance shows consistency in the ridge-axis extending across the lower Kuskokwim Valley and across the western Alaska Range. The orientation of this ridge supports a moderate tilt in the odds in favor of warmer than normal temperatures and above normal precipitation across Southwest Alaska. The odds also show a slight tilt in favor of below normal temperatures across the Copper Basin, with the strength of the tilt increasing farther east. Synoptically, a frontal system is likely to move over Southwest Alaska on Tuesday, though confidence remains low on the position and orientation of the front at this time which results in low confidence in the precipitation and precipitation type forecast. The other concern this forecast period is strong westerly gap flow through bays and passes across the western Gulf of Alaska on Monday and Tuesday. Heavy freezing spray will likely be associated with these strong gap winds due to cold air advection being expected at the same time. && .AFC WATCHES/WARNINGS/ADVISORIES... PUBLIC...High Wind Watch 185. Winter Weather Advisory 155. MARINE...Gale 130 132 150-170 172-178 180-185. Storm 171 179. Heavy Freezing Spray 130 139 140 155 180 185. FIRE WEATHER...NONE. && SYNOPSIS AND MODEL DISCUSSION...RC SOUTHCENTRAL ALASKA...KC SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...CQ LONG TERM...ED
The office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 3:34 PM AKST | Gale Warning | AFC | 4 days | |
| Feb 15, 3:34 PM AKST | Small Craft Advisory | AFC | 48 hr | |
| Feb 15, 3:34 PM AKST | Heavy Freezing Spray Warning | AFC | 12 hr | |
| Feb 15, 3:36 PM AKST | Gale Warning | AFC | 48 hr | |
| Feb 15, 3:36 PM AKST | Storm Warning | AFC | 36 hr | |
| Feb 15, 3:40 PM AKST | Gale Warning | AFC | 36 hr | |
| Feb 15, 3:40 PM AKST | Storm Warning | AFC | 12 hr | |
| Feb 15, 3:40 PM AKST | Heavy Freezing Spray Warning | AFC | 12 hr | |
| Feb 15, 3:57 PM AKST | High Wind Watch | AFC | 13 hr | |
| Feb 15, 4:10 PM AKST | Winter Weather Advisory | AFC | 44 hr | |
| Feb 16, 3:43 AM AKST | Gale Warning | AFC | 4 days | |
| Feb 16, 3:43 AM AKST | Small Craft Advisory | AFC | 36 hr | |
| Feb 16, 3:55 AM AKST | Brisk Wind Advisory | AFC | 11 hr | |
| Feb 16, 3:55 AM AKST | Gale Warning | AFC | 24 hr | |
| Feb 16, 3:55 AM AKST | Storm Warning | AFC | 24 hr | |
| Feb 16, 4:17 AM AKST | Winter Weather Advisory | AFC | 29 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.