Alert archive / Alaska / Gale Warnings in 2018
Gale Warning 224, NWS Anchorage, AK
NWS Anchorage, AK issued this gale warning at Mar 23, 2018, 3:38 PM 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
- Mar 23, 2018, 3:38 PM AKDT (23:38 UTC)
- Expired
- Mar 26, 2018, 3:43 PM AKDT
- In force
- 3 days
- Issued by
- NWS Anchorage, AK
The text
As transmitted.
638 FZAK62 PAFC 232338 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 338 PM AKDT Fri Mar 23 2018 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. PKZ499-241315- 338 PM AKDT Fri Mar 23 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A 992 mb low at 50N 172E moves to 58N 169W at 976 mb by Sun afternoon. The associated weather front moves over the Aleutians and extends across the Alaska Peninsula then splits into the Southern Gulf of Alaska and North Pacific by Sun afternoon. $$ PKZ411-241315- Bering Sea Offshore West of 180 and East of the International Dateline- 338 PM AKDT Fri Mar 23 2018 .TONIGHT...SW wind up to 20 kt becoming N after midnight. Seas 8 to 13 ft. Snow. .SAT...NW wind 15 to 30 kt. Seas 7 to 12 ft. Freezing spray. .SAT NIGHT...NW wind 25 kt. Seas 8 to 11 ft. Freezing spray. .SUN...NW wind 25 kt. Seas 10 ft. .SUN NIGHT...NW wind 15 to 25 kt. Seas 8 to 11 ft. .MON THROUGH TUE...W wind 10 to 20 kt. Seas 5 to 10 ft. .WED...SW wind 10 to 20 kt. Seas 4 ft. $$ PKZ412-241315- Bering Sea Offshore 171W to 180 and North of 56N- 338 PM AKDT Fri Mar 23 2018 .TONIGHT...S wind 10 to 25 kt. Seas 10 to 15 ft. Snow. .SAT...E wind 10 to 25 kt. Seas 9 to 16 ft. Snow and rain showers. .SAT NIGHT...N wind 15 to 30 kt. Seas 11 to 16 ft. Snow and rain showers. .SUN...N wind 15 to 30 kt. Seas 11 to 15 ft. .SUN NIGHT...NW wind 20 to 30 kt. Seas 12 to 16 ft. .MON...NW wind 20 to 30 kt. Seas 9 to 14 ft. .TUE...NW wind 10 to 20 kt. Seas 4 to 8 ft. .WED...SW wind 15 kt. Seas 5 ft. $$ PKZ413-241315- Bering Sea Offshore 171W to 180 and South of 56N- 338 PM AKDT Fri Mar 23 2018 ...GALE WARNING SATURDAY NIGHT... .TONIGHT...S wind 20 to 30 kt. Seas 11 to 15 ft. Snow and rain. .SAT...SE wind 15 to 30 kt becoming W in the afternoon. Seas 10 to 16 ft. .SAT NIGHT...NW wind 20 to 35 kt. Seas 9 to 17 ft. .SUN...NW wind 25 to 35 kt. Seas 11 to 16 ft. .SUN NIGHT...NW wind 30 kt. Seas 11 to 15 ft. .MON...NW wind 15 to 30 kt. Seas 8 to 13 ft. .TUE...W wind up to 15 kt. Seas 4 to 7 ft. .WED...SW wind 10 kt. Seas 4 ft. $$ PKZ414-241315- Bering Sea Offshore East of 171W- 338 PM AKDT Fri Mar 23 2018 .TONIGHT...S wind 15 to 25 kt. Seas 8 to 12 ft. Snow and rain. .SAT...SE wind 15 to 30 kt becoming 25 kt in the afternoon. Seas 8 to 13 ft. Snow and rain showers. .SAT NIGHT...SE wind 15 to 25 kt. Seas 9 to 14 ft. Rain and snow showers. .SUN...S wind 15 to 30 kt. Seas 9 to 14 ft. .SUN NIGHT...SW wind 15 to 30 kt. Seas 9 to 14 ft. .MON THROUGH WED...W wind 15 to 30 kt. Seas 7 to 12 ft. $$
6 follow-up statements
989 FZAK62 PAFC 241153 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 353 AM AKDT Sat Mar 24 2018 Offshore Waters Forecast for the Bering Sea Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ499-250115- 353 AM AKDT Sat Mar 24 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A 986 mb low at 54N 180 will move to 59N 169W at 976 mb Mon morning. $$ PKZ411-250115- Bering Sea Offshore West of 180 and East of the International Dateline- 353 AM AKDT Sat Mar 24 2018 ...GALE WARNING TODAY... .TODAY...NW wind 20 to 35 kt. Seas 8 to 13 ft. .TONIGHT...NW wind 20 to 30 kt. Seas 8 to 12 ft. Freezing spray. .SUN...NW wind 20 to 30 kt. Seas 9 to 12 ft. Freezing spray. .SUN NIGHT...NW wind 15 to 25 kt. Seas 8 to 13 ft. .MON THROUGH TUE...W wind up to 20 kt. Seas 6 to 11 ft. .WED...SW wind 10 to 20 kt. Seas 4 ft. $$ PKZ412-250115- Bering Sea Offshore 171W to 180 and North of 56N- 353 AM AKDT Sat Mar 24 2018 ...GALE WARNING TONIGHT AND SUNDAY... .TODAY...E wind 15 to 30 kt. Seas 9 to 15 ft. Snow and rain showers. .TONIGHT...N wind 20 to 35 kt. Seas 11 to 16 ft. Snow showers and rain showers. .SUN...NW wind 20 to 35 kt. Seas 10 to 17 ft. .SUN NIGHT...NW wind 25 to 35 kt. Seas 11 to 17 ft. .MON THROUGH TUE...NW wind 15 to 30 kt. Seas 7 to 12 ft. .WED...SW wind 15 kt. Seas 5 ft. $$ PKZ413-250115- Bering Sea Offshore 171W to 180 and South of 56N- 353 AM AKDT Sat Mar 24 2018 ...GALE WARNING THROUGH SUNDAY... .TODAY...SW wind 25 to 40 kt. Seas 11 to 16 ft. Rain and snow. .TONIGHT...NW wind 25 to 40 kt. Seas 12 to 20 ft. .SUN...NW wind 25 to 35 kt. Seas 13 to 20 ft. .SUN NIGHT...NW wind 25 to 35 kt. Seas 13 to 19 ft. .MON...NW wind 15 to 30 kt. Seas 9 to 17 ft. .TUE...W wind up to 20 kt. Seas 5 to 10 ft. .WED...SW wind 10 kt. Seas 4 ft. $$ PKZ414-250115- Bering Sea Offshore East of 171W- 353 AM AKDT Sat Mar 24 2018 .TODAY...SE wind 20 to 30 kt. Seas 8 to 13 ft. Snow and rain showers. .TONIGHT...S wind 15 to 30 kt. Seas 8 to 13 ft. Snow and rain showers. .SUN...SW wind 15 to 30 kt. Seas 10 to 18 ft. .SUN NIGHT...SW wind 15 to 30 kt. Seas 9 to 17 ft. .MON THROUGH TUE...W wind 15 to 30 kt. Seas 9 to 17 ft. .WED...W wind 15 kt. Seas 4 ft. $$
741 FZAK62 PAFC 242319 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 319 PM AKDT Sat Mar 24 2018 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. PKZ499-251300- 319 PM AKDT Sat Mar 24 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A 980 mb low at 56N 175W moves to 58N 170W at 972 mb Sun afternoon then slips to 59N 166W at 979 mb for Mon afternoon. Its front pushes across into the Gulf of Alaska Sun morning with the trailing front following into the Gulf by Mon morning. $$ PKZ411-251300- Bering Sea Offshore West of 180 and East of the International Dateline- 319 PM AKDT Sat Mar 24 2018 .TONIGHT...NW wind 20 to 30 kt. Seas 9 to 12 ft. Freezing spray. .SUN...NW wind 20 to 30 kt. Seas 9 to 13 ft. Freezing spray. .SUN NIGHT...NW wind 15 to 30 kt. Seas 8 to 13 ft. Freezing spray. .MON...NW wind 10 to 25 kt. Seas 7 to 11 ft. .MON NIGHT...W wind up to 15 kt. Seas 5 to 8 ft. .TUE...W wind up to 15 kt. Seas 5 ft. .WED THROUGH THU...S wind 10 to 25 kt. Seas 4 to 9 ft. $$ PKZ412-251300- Bering Sea Offshore 171W to 180 and North of 56N- 319 PM AKDT Sat Mar 24 2018 ...GALE WARNING THROUGH SUNDAY NIGHT... .TONIGHT...N wind 20 to 35 kt. Seas 11 to 15 ft. Snow showers and rain showers. .SUN...NW wind 20 to 35 kt. Seas 10 to 18 ft. Snow and rain showers. .SUN NIGHT...NW wind 20 to 35 kt. Seas 11 to 18 ft. Snow. .MON...NW wind 20 to 30 kt. Seas 10 to 17 ft. .MON NIGHT...NW wind 15 to 30 kt. Seas 9 to 14 ft. .TUE THROUGH WED...SW wind 10 to 25 kt. Seas 5 to 10 ft. .THU...S wind 20 kt. Seas 5 ft. $$ PKZ413-251300- Bering Sea Offshore 171W to 180 and South of 56N- 319 PM AKDT Sat Mar 24 2018 ...GALE WARNING THROUGH SUNDAY NIGHT... .TONIGHT...NW wind 25 to 40 kt. Seas 12 to 20 ft. .SUN...NW wind 35 kt. Seas 13 to 20 ft. .SUN NIGHT...NW wind 25 to 35 kt. Seas 13 to 20 ft. .MON...NW wind 20 to 35 kt. Seas 11 to 19 ft. .MON NIGHT...W wind 15 to 30 kt. Seas 9 to 14 ft. .TUE THROUGH WED...SW wind up to 20 kt. Seas 5 to 10 ft. .THU...SE wind 15 kt. Seas 4 to 7 ft. $$ PKZ414-251300- Bering Sea Offshore East of 171W- 319 PM AKDT Sat Mar 24 2018 ...GALE WARNING SUNDAY NIGHT... .TONIGHT...SE wind 15 to 30 kt. Seas 9 to 14 ft. Snow and rain showers. .SUN...SW wind 15 to 30 kt. Seas 10 to 18 ft. .SUN NIGHT...SW wind 20 to 35 kt. Seas 10 to 18 ft. .MON...W wind 15 to 30 kt. Seas 10 to 18 ft. .MON NIGHT...W wind 30 kt. Seas 10 to 18 ft. .TUE...W wind 15 to 30 kt. Seas 7 to 12 ft. .WED...W wind 15 kt. Seas 4 ft. .THU...SE wind 15 kt. Seas 3 to 6 ft. $$
367 FZAK62 PAFC 251157 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 357 AM AKDT Sun Mar 25 2018 Offshore Waters Forecast for the Bering Sea Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ499-260100- 357 AM AKDT Sun Mar 25 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A 978 mb low at 56N 172W will move to 59N 163W at 990 mb Tue morning. $$ PKZ411-260100- Bering Sea Offshore West of 180 and East of the International Dateline- 357 AM AKDT Sun Mar 25 2018 .TODAY...NW wind 20 to 30 kt. Seas 9 to 13 ft. Freezing spray. .TONIGHT...NW wind 15 to 30 kt. Seas 8 to 12 ft. Freezing spray. .MON...NW wind 10 to 25 kt. Seas 7 to 10 ft. Freezing spray. .MON NIGHT...NW wind 15 kt. Seas 5 to 8 ft. .TUE...W wind up to 15 kt. Seas 3 to 6 ft. .WED...SW wind 10 to 25 kt. Seas 4 ft. .THU...S wind 30 kt. Seas 7 to 12 ft. $$ PKZ412-260100- Bering Sea Offshore 171W to 180 and North of 56N- 357 AM AKDT Sun Mar 25 2018 ...GALE WARNING THROUGH TONIGHT... .TODAY...N wind 20 to 35 kt. Seas 10 to 16 ft. Snow showers and rain showers. .TONIGHT...N wind 20 to 35 kt. Seas 10 to 16 ft. Snow. .MON...NW wind 20 to 30 kt. Seas 9 to 14 ft. .MON NIGHT...NW wind 15 to 30 kt. Seas 8 to 13 ft. .TUE THROUGH THU...SW wind 10 to 25 kt. Seas 5 to 10 ft. $$ PKZ413-260100- Bering Sea Offshore 171W to 180 and South of 56N- 357 AM AKDT Sun Mar 25 2018 ...GALE WARNING THROUGH MONDAY... .TODAY...NW wind 30 to 40 kt. Seas 13 to 19 ft. Snow showers. .TONIGHT...NW wind 25 to 40 kt. Seas 13 to 19 ft. .MON...NW wind 20 to 35 kt. Seas 10 to 18 ft. .MON NIGHT...NW wind 15 to 30 kt. Seas 9 to 14 ft. .TUE THROUGH THU...SW wind 10 to 25 kt. Seas 4 to 9 ft. $$ PKZ414-260100- Bering Sea Offshore East of 171W- 357 AM AKDT Sun Mar 25 2018 ...GALE WARNING TONIGHT AND MONDAY... .TODAY...S wind 15 to 30 kt. Seas 9 to 17 ft. .TONIGHT...SW wind 20 to 35 kt. Seas 9 to 17 ft. .MON...W wind 20 to 35 kt. Seas 8 to 16 ft. .MON NIGHT...W wind 15 to 30 kt. Seas 8 to 16 ft. .TUE THROUGH THU...SW wind 15 to 30 kt. Seas 6 to 11 ft. $$
719 FZAK62 PAFC 252336 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 336 PM AKDT Sun Mar 25 2018 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. PKZ499-261330- 336 PM AKDT Sun Mar 25 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A 977 mb low at 57N 170W moves onshore near 60N 162W at 996 mb for Midday Tue. Its front wraps over the Northern Bering through Tue afternoon. A 985 mb low near 56N 159W moves to 60N 141W at 1010 mb pulling its front across the Gulf of Alaska by Tue afternoon. $$ PKZ411-261330- Bering Sea Offshore West of 180 and East of the International Dateline- 336 PM AKDT Sun Mar 25 2018 .TONIGHT...NW wind 15 to 30 kt. Seas 8 to 12 ft. Freezing spray. .MON...NW wind 10 to 25 kt. Seas 7 to 10 ft. Freezing spray in the morning. .MON NIGHT...NW wind 10 to 15 kt. Seas 7 ft. Freezing spray. .TUE...W wind up to 15 kt. Seas 5 ft. .TUE NIGHT...W wind up to 15 kt. Seas 4 ft. .WED...SW wind 10 to 25 kt. Seas 4 ft. .THU THROUGH FRI...S wind 30 kt. Seas 7 to 12 ft. $$ PKZ412-261330- Bering Sea Offshore 171W to 180 and North of 56N- 336 PM AKDT Sun Mar 25 2018 ...GALE WARNING THROUGH MONDAY... .TONIGHT...N wind 20 to 35 kt. Seas 9 to 15 ft. Snow showers. .MON...NW wind 20 to 35 kt. Seas 9 to 14 ft. Snow showers. .MON NIGHT...NW wind 15 to 30 kt. Seas 8 to 13 ft. Freezing spray. Snow showers. .TUE...W wind 15 to 25 kt. Seas 5 to 10 ft. .TUE NIGHT...W wind 10 to 20 kt. Seas 4 to 7 ft. .WED THROUGH FRI...SW wind 10 to 25 kt. Seas 4 to 8 ft. $$ PKZ413-261330- Bering Sea Offshore 171W to 180 and South of 56N- 336 PM AKDT Sun Mar 25 2018 ...GALE WARNING THROUGH MONDAY... .TONIGHT...NW wind 25 to 40 kt. Seas 13 to 18 ft. Snow showers. .MON...NW wind 20 to 35 kt. Seas 9 to 17 ft. .MON NIGHT...W wind 15 to 30 kt. Seas 8 to 13 ft. .TUE...W wind 10 to 20 kt. Seas 5 to 10 ft. .TUE NIGHT...W wind up to 15 kt. Seas 3 to 6 ft. .WED THROUGH FRI...S wind 10 to 25 kt. Seas 3 to 6 ft. $$ PKZ414-261330- Bering Sea Offshore East of 171W- 336 PM AKDT Sun Mar 25 2018 ...GALE WARNING TONIGHT... .TONIGHT...W wind 20 to 35 kt except variable 20 kt N of 56N. Seas 8 to 16 ft. .MON...NW wind 15 to 30 kt. Seas 9 to 14 ft. .MON NIGHT...NW wind 15 to 30 kt. Seas 9 to 14 ft. Snow showers. .TUE...W wind 20 to 30 kt. Seas 9 to 14 ft. .TUE NIGHT...W wind 10 to 25 kt. Seas 6 to 11 ft. .WED THROUGH FRI...SW wind up to 20 kt. Seas 3 to 7 ft. $$
480 FZAK62 PAFC 261155 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 355 AM AKDT Mon Mar 26 2018 Offshore Waters Forecast for the Bering Sea Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ499-270045- 355 AM AKDT Mon Mar 26 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A 977 mb low at 58N 170W will move inland passing over Norton Sound Tue morning at 995 mb. A front associated with a Kamchatka low approaches the western Aleutians Wed morning. $$ PKZ411-270045- Bering Sea Offshore West of 180 and East of the International Dateline- 355 AM AKDT Mon Mar 26 2018 .TODAY...NW wind 10 to 25 kt. Seas 6 to 10 ft. Freezing spray. .TONIGHT...W wind 10 to 15 kt. Seas 6 ft. Freezing spray. .TUE...W wind 10 to 15 kt. Seas 5 ft. .TUE NIGHT...W wind up to 15 kt. Seas 4 ft. .WED THROUGH FRI...S wind 15 to 30 kt. Seas 6 to 11 ft. $$ PKZ412-270045- Bering Sea Offshore 171W to 180 and North of 56N- 355 AM AKDT Mon Mar 26 2018 .TODAY...NW wind 20 to 30 kt. Seas 9 to 14 ft. .TONIGHT...NW wind 15 to 30 kt. Seas 7 to 12 ft. Freezing spray. .TUE...W wind 10 to 25 kt. Seas 5 to 10 ft. Freezing spray. .TUE NIGHT...W wind 15 kt. Seas 4 to 7 ft. .WED THROUGH FRI...SW wind 10 to 25 kt. Seas 3 to 8 ft. $$ PKZ413-270045- Bering Sea Offshore 171W to 180 and South of 56N- 355 AM AKDT Mon Mar 26 2018 ...GALE WARNING TODAY... .TODAY...NW wind 20 to 35 kt. Seas 9 to 17 ft. .TONIGHT...W wind 15 to 30 kt. Seas 8 to 13 ft. .TUE...W wind 10 to 20 kt. Seas 5 to 9 ft. .TUE NIGHT...SW wind up to 15 kt. Seas 5 ft. .WED THROUGH FRI...S wind up to 20 kt. Seas 3 to 6 ft. $$ PKZ414-270045- Bering Sea Offshore East of 171W- 355 AM AKDT Mon Mar 26 2018 ...GALE WARNING TODAY... .TODAY...W wind 20 to 35 kt. Seas 9 to 14 ft. .TONIGHT...W wind 15 to 30 kt. Seas 8 to 16 ft. Snow showers and rain showers. .TUE...W wind 15 to 30 kt. Seas 9 to 14 ft. .TUE NIGHT...W wind 10 to 25 kt. Seas 5 to 10 ft. .WED THROUGH FRI...SW wind up to 15 kt. Seas 3 to 7 ft. $$
780 FZAK62 PAFC 262343 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 343 PM AKDT Mon Mar 26 2018 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. PKZ499-271415- 343 PM AKDT Mon Mar 26 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A 983 mb low near 58N 167W will weaken to 996 mb and move onshore near Bethel by Tuesday morning. Westerly flow will dominate the Bering through Wed morning. A front associated with a Kamchatka low approaches the western Aleutians Wed afternoon. $$ PKZ411-271415- Bering Sea Offshore West of 180 and East of the International Dateline- 343 PM AKDT Mon Mar 26 2018 .TONIGHT...W wind 10 to 15 kt. Seas 6 ft. Freezing spray. .TUE...NW wind 10 to 15 kt. Seas 5 ft. .TUE NIGHT...W wind up to 15 kt. Seas 4 ft. .WED...SW wind up to 15 kt. Seas 3 ft. .WED NIGHT...S wind 15 to 30 kt. Seas 3 to 7 ft. .THU THROUGH SAT...S wind 20 to 30 kt. Seas 7 to 12 ft. $$ PKZ412-271415- Bering Sea Offshore 171W to 180 and North of 56N- 343 PM AKDT Mon Mar 26 2018 .TONIGHT...NW wind 15 to 30 kt. Seas 7 to 12 ft. Freezing spray. .TUE...W wind 10 to 25 kt. Seas 5 to 9 ft. .TUE NIGHT...W wind 15 kt. Seas 4 to 7 ft. .WED...SW wind up to 15 kt. Seas 4 ft. .WED NIGHT...SW wind up to 15 kt. Seas 4 ft. .THU THROUGH SAT...S wind 10 to 25 kt. Seas 3 to 8 ft. $$ PKZ413-271415- Bering Sea Offshore 171W to 180 and South of 56N- 343 PM AKDT Mon Mar 26 2018 .TONIGHT...W wind 15 to 30 kt. Seas 8 to 13 ft. .TUE...W wind 10 to 20 kt. Seas 5 to 9 ft. .TUE NIGHT...SW wind 10 to 15 kt. Seas 5 ft. .WED...SW wind 10 kt. Seas 3 ft. .WED NIGHT...S wind up to 15 kt. Seas 3 ft. .THU THROUGH FRI...S wind up to 20 kt. Seas 3 to 6 ft. .SAT...SE wind 15 kt. Seas 7 ft. $$ PKZ414-271415- Bering Sea Offshore East of 171W- 343 PM AKDT Mon Mar 26 2018 ...GALE WARNING TONIGHT... .TONIGHT...W wind 20 to 35 kt. Seas 9 to 14 ft. Snow and rain showers. .TUE...W wind 15 to 30 kt. Seas 9 to 14 ft. .TUE NIGHT...W wind 10 to 20 kt. Seas 5 to 10 ft. .WED...SW wind up to 15 kt. Seas 3 to 6 ft. .WED NIGHT...SW wind 10 kt. Seas 4 ft. .THU THROUGH FRI...SW wind up to 15 kt. Seas 3 to 6 ft. .SAT...E wind up to 15 kt. Seas 3 to 5 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 Mar 23, 8:21 AM AKDT, 7 hours 17 minutes earlier.
Area forecast discussion, Mar 23, 8:21 AM AKDT, 7 hours 17 minutes before
Southcentral and Southwest Alaska Forecast Discussion...CORRECTED National Weather Service Anchorage AK 821 AM AKDT Fri Mar 23 2018 .ANALYSIS AND UPPER LEVELS... The upper level omega block over the area is beginning to break down this morning as a strong upper level low, over eastern Russia, and it's associated trough over the eastern Bering continue to move eastward. This results in an eastward shift in the pattern. Mid-level atmospheric temperatures continue to warm as the ridge moves over Southcentral, though from here, the ridge will be weakening so the warming in the mid-levels is just about over. Fortunately, the 12Z Anchorage sounding remains similar to previous ones in the sense that the entire atmosphere is very dry. Thus, fog concerns remain minimal this morning. As the upper ridge weakens, the flow on the east side of the ridge across the Copper Basin and southeastern Prince William Sound is also diminishing. The very strong winds we have seen through that area, especially Thompson Pass, are also gradually weakening. Across Southwest Alaska, a dying cold front marking the eastern edge of the colder air, produced some snow over the Kuskokwim Delta yesterday evening. This localized addition of moisture along with onshore flow could result in some fog concerns as well until sunrise. The front has moved into the Bristol Bay area causing localized very light snow. As the morning progresses, the snow will dissipate. Across the Bering, the cold air in place through the upper levels has made the atmosphere through that area very unstable thus resulting in a large cumulus field over the area. Fortunately, no individual clusters have thus far been able to become thunderstorms. The off-and-on snow shower activity continues over the Pribilofs with individual snow showers briefly dropping visibilities as low as 1 mile. && .MODEL DISCUSSION... The models are in decent agreement over the next two days on the evolution on the broad synoptic setup. The GFS is a bit stronger and further north than the other models with the low by late Saturday night. Thus an EC/NAM solution was used out west. No real differences exist between any of the models in the Gulf/Southcentral, so high resolution models were used for the winds. Forecast confidence remains high. && .AVIATION... PANC...VFR conditions and light winds will persist. && .SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)... Localized gap winds along the north Gulf coast and Prince William Sound will finally die down today as a weakening upper level ridge moves overhead and surface pressure gradients slacken. An elongating and weakening front over Southwest Alaska will make its way into the western Gulf and Southcentral this afternoon, with very little precipitation surviving the journey across the Aleutian/Alaska Ranges. Increasing mid to high clouds for western-most areas will be the main impact. Weak cold air advection combined with tightening pressure gradients as a ridge builds over Southwest Alaska will lead to gusty gap winds across the western Gulf/Kodiak Island beginning late this afternoon and continuing through early Saturday. Slightly cooler air and tighter pressure gradients will also bring another round of wind to gaps along the north Gulf coast and Prince William Sound, albeit notably weaker than the wind event of the past few days. For most of the region dry conditions and seasonable temperatures will be the norm for the next couple days. The next chance for precipitation will come with a frontal system moving into the southwestern Gulf Saturday night, with snow and strengthening winds for Kodiak Island. && .SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3)... The frontal system currently stretched from the Lower Kuskokwim south across the greater Bristol Bay area will continue to shear apart as it continues slowly east today accompanied by a cold upper level trough. Flat ridging will briefly build over Southwest Alaska late Friday night through Saturday morning. The next frontal system will begin spreading across the Alaska Peninsula Saturday and then lift northeast into Southwest Alaska Saturday night through Sunday. && .SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3)... As the most recent Bering low lifts away to the north and into Russia, the next developing North Pacific low is approaching the western Aleutians this morning. The surface low will cross the Aleutian chain just to west of Kiska this evening and then continue into the central Bering through Saturday. The low will become vertically stacked as it crosses the Pribilof Islands Sunday afternoon and evening, then continue drifting slowly east northeast to reach the Kuskokwim Delta Coast around Tuesday morning. && .LONG TERM FORECAST (Days 3 through 7)... A brief pattern change will begin on Sunday, as the ridge in the North Pacific weakens slightly and moves southward. This will allow the low pressure systems that have been remaining in the western portion of the area to move eastward, affecting more of the mainland. On Sunday, a triple point low will develop along the front south of the Aleutians, then strengthen as it moves into the Gulf of Alaska. This will bring weather onshore for the Gulf Coast region. However, the system will weaken rapidly as it heads northward over the mainland and precipitation will diminish for interior regions on Monday. By Tuesday, forecast continuity between the model solutions begins to struggle. Earlier runs indicated that the ridging would build back in to the North Pacific, which would bring a very spring-like pattern to the forecast area. However, this afternoon's runs have diverged, instead bringing a strong low into the Gulf of Alaska. This brings low confidence to the extended forecast. && .AFC WATCHES/WARNINGS/ADVISORIES... PUBLIC...None. MARINE...Gales: 130 131 176 177. && SYNOPSIS AND MODEL DISCUSSION...JPW SOUTHCENTRAL ALASKA...SEB SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...JER LONG TERM...LF
The office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 23, 3:11 AM AKDT | Gale Warning | AFC | 13 hr | |
| Mar 23, 3:11 AM AKDT | Small Craft Advisory | AFC | 5 days | |
| Mar 23, 3:11 AM AKDT | Small Craft Advisory | AFC | 3 days | |
| Mar 23, 3:46 PM AKDT | Small Craft Advisory | AFC | 5 days |
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.