Alert archive / Alaska / Storm Warnings in 2019
Storm Warning 43, NWS Anchorage, AK
NWS Anchorage, AK issued this storm warning at Feb 23, 2019, 3:55 AM AKST. It was in force for 59 hr. 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 23, 2019, 3:55 AM AKST (12:55 UTC)
- Expired
- Feb 25, 2019, 3:04 PM AKST
- In force
- 59 hr
- Issued by
- NWS Anchorage, AK
The text
As transmitted.
462 FZAK62 PAFC 231255 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 355 AM AKST Sat Feb 23 2019 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. PKZ499-240200- 355 AM AKST Sat Feb 23 2019 .SYNOPSIS FOR CENTRAL BERING SEA... A 981 mb low at 54N 177W will move to the Northern Bering at 980 mb Sat afternoon. A 961 mb North Pacific low will move to 48N 179E Sun morning then it will move to 54N 180E at 964 mb Mon morning. $$ PKZ411-240200- Bering Sea Offshore West of 180 and East of the International Dateline- 355 AM AKST Sat Feb 23 2019 ...STORM WARNING SUNDAY... .TODAY...W wind 20 to 35 kt. Seas 9 to 14 ft. .TONIGHT...SW wind 15 to 25 kt. Seas 8 to 11 ft. Freezing spray W of 177E after midnight. .SUN...S wind 10 to 25 kt becoming E 35 to 50 kt in the afternoon. Seas 8 to 11 ft building to 10 to 18 ft in the afternoon. Rain. .SUN NIGHT...E wind 30 to 45 kt. Seas 13 to 28 ft. .MON...SW wind 30 to 45 kt. Seas 22 to 31 ft. .TUE...SW wind 20 to 35 kt. Seas 15 to 23 ft. .WED...NE wind up to 20 kt. Seas 13 to 21 ft. $$ PKZ412-240200- Bering Sea Offshore 171W to 180 and North of 56N- 355 AM AKST Sat Feb 23 2019 ...GALE WARNING TODAY AND SUNDAY... .TODAY...S wind 30 to 45 kt becoming W 20 to 35 kt. Seas 14 to 22 ft. Rain. .TONIGHT...SW wind 15 to 25 kt. Seas 11 to 18 ft. Rain. .SUN...S wind 10 to 25 kt becoming SE 25 to 40 kt in the afternoon. Seas 9 to 13 ft. .SUN NIGHT...SE wind 35 to 50 kt. Seas 15 to 23 ft. .MON...S wind 30 to 45 kt. Seas 17 to 32 ft. .TUE...S wind 20 to 30 kt. Seas 17 to 24 ft. .WED...SE wind 20 to 35 kt. Seas 16 to 24 ft. $$ PKZ413-240200- Bering Sea Offshore 171W to 180 and South of 56N- 355 AM AKST Sat Feb 23 2019 ...STORM WARNING SUNDAY... .TODAY...S to W wind 25 to 40 kt becoming W 20 to 30 kt in the afternoon. Seas 12 to 19 ft. Rain. .TONIGHT...SW wind 15 to 25 kt. Seas 9 to 17 ft. .SUN...SE wind 20 to 35 kt increasing to 35 to 50 kt in the afternoon. Seas 9 ft building to 10 to 18 ft in the afternoon. Rain. .SUN NIGHT...SE wind 35 to 50 kt. Seas 15 to 30 ft. .MON...S wind 30 to 45 kt. Seas 17 to 30 ft. .TUE THROUGH WED...SE wind 20 to 35 kt. Seas 15 to 23 ft. $$ PKZ414-240200- Bering Sea Offshore East of 171W- 355 AM AKST Sat Feb 23 2019 ...GALE WARNING THROUGH TONIGHT... .TODAY...SE wind 25 to 40 kt. Seas 12 to 19 ft. Rain. .TONIGHT...SE wind 20 to 35 kt becoming W 15 to 30 kt after midnight. Seas 10 to 17 ft. Rain. .SUN...W wind up to 20 kt becoming E 10 to 25 kt in the afternoon. Seas 8 to 13 ft. .SUN NIGHT...SE wind 25 to 40 kt. Seas 7 to 12 ft. .MON...SE wind 25 to 40 kt. Seas 9 to 17 ft. .TUE THROUGH WED...SE wind 20 to 35 kt. Seas 11 to 19 ft. $$
5 follow-up statements
897 FZAK62 PAFC 240032 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 332 PM AKST Sat Feb 23 2019 Offshore Waters Forecast for the Bering Sea Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ499-241415- 332 PM AKST Sat Feb 23 2019 .SYNOPSIS FOR CENTRAL BERING SEA... A 977 mb low at 60N 179W continues to move into the northern Bering through tonight. A 951 mb North Pacific low moves to 50N 179E at 953 mb by Sun afternoon and then to 58N 174E at 954 mb by Mon morning. $$ PKZ411-241415- Bering Sea Offshore West of 180 and East of the International Dateline- 332 PM AKST Sat Feb 23 2019 ...GALE WARNING SUNDAY AND SUNDAY NIGHT... .TONIGHT...SW wind 15 to 30 kt. Seas 7 to 12 ft. Freezing spray. .SUN...S wind 10 to 25 kt becoming E 30 to 45 kt in the afternoon. Seas 8 to 11 ft building to 10 to 18 ft in the afternoon. Snow. .SUN NIGHT...E wind 30 to 45 kt. Seas 14 to 22 ft building to 20 to 29 ft after midnight. Rain and snow. .MON...SW wind 30 to 45 kt. Seas 23 to 31 ft. .MON NIGHT...SW wind 30 to 45 kt. Seas 22 to 29 ft. .TUE...SW wind 20 to 35 kt. Seas 15 to 23 ft. .WED...NE wind up to 20 kt. Seas 13 to 21 ft. .THU...W wind 15 to 30 kt. Seas 12 to 18 ft. $$ PKZ412-241415- Bering Sea Offshore 171W to 180 and North of 56N- 332 PM AKST Sat Feb 23 2019 ...STORM WARNING SUNDAY NIGHT... .TONIGHT...SW wind 20 to 35 kt. Seas 13 to 21 ft. Rain. .SUN...S wind 15 to 30 kt becoming SE 25 to 40 kt in the afternoon. Seas 9 to 13 ft. .SUN NIGHT...SE wind 35 to 50 kt. Seas 14 to 22 ft. .MON...SE wind 35 to 45 kt. Seas 17 to 32 ft. .MON NIGHT...S wind 25 to 40 kt. Seas 18 to 26 ft. .TUE...S wind 20 to 30 kt. Seas 17 to 24 ft. .WED...SE wind 20 to 35 kt. Seas 16 to 24 ft. .THU...S wind 20 to 30 kt. Seas 15 to 20 ft. $$ PKZ413-241415- Bering Sea Offshore 171W to 180 and South of 56N- 332 PM AKST Sat Feb 23 2019 ...STORM WARNING SUNDAY AND SUNDAY NIGHT... .TONIGHT...SW wind 20 to 30 kt. Seas 10 to 18 ft. .SUN...SE wind 20 to 35 kt increasing to 35 to 50 kt in the afternoon. Seas 9 ft building to 10 to 18 ft in the afternoon. Rain. .SUN NIGHT...SE wind 35 to 50 kt. Seas 14 to 28 ft building to 20 to 31 ft after midnight. Rain. .MON...S wind 30 to 45 kt. Seas 17 to 30 ft. .MON NIGHT...SW wind 20 to 35 kt. Seas 17 to 26 ft. .TUE THROUGH WED...SE wind 20 to 35 kt. Seas 15 to 23 ft. .THU...SW wind 20 to 30 kt. Seas 13 to 16 ft. $$ PKZ414-241415- Bering Sea Offshore East of 171W- 332 PM AKST Sat Feb 23 2019 ...GALE WARNING TONIGHT AND SUNDAY NIGHT... .TONIGHT...SE wind 25 to 40 kt becoming SW 15 to 30 kt after midnight. Seas 11 to 18 ft. Rain. .SUN...W wind up to 20 kt becoming E 10 to 25 kt in the afternoon. Seas 8 to 13 ft. .SUN NIGHT...E wind 15 to 30 kt becoming SE 25 to 40 kt after midnight. Seas 7 to 12 ft. .MON...SE wind 25 to 40 kt. Seas 9 to 17 ft. .MON NIGHT...S wind 15 to 30 kt. Seas 11 to 16 ft. .TUE THROUGH THU...S wind 20 to 35 kt. Seas 11 to 19 ft. $$
355 FZAK62 PAFC 241300 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 400 AM AKST Sun Feb 24 2019 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. PKZ499-250145- 400 AM AKST Sun Feb 24 2019 .SYNOPSIS FOR CENTRAL BERING SEA... A front over the Eastern Bering edges into Western Alaska through Mon afternoon. A strong 957 mb low at 43N 175E drives over the Aleutians to Northern Kamchatka at 961 mb for Tue morning. Its front stretches across the Bering and Central Aleutians by Tue morning. $$ PKZ411-250145- Bering Sea Offshore West of 180 and East of the International Dateline- 400 AM AKST Sun Feb 24 2019 ...GALE WARNING THROUGH MONDAY... .TODAY...S wind 10 to 25 kt becoming E 30 to 45 kt in the afternoon. Seas 8 to 11 ft building to 10 to 18 ft in the afternoon. Snow and rain. .TONIGHT...E wind 30 to 45 kt. Seas 14 to 29 ft. Rain and snow. .MON...E 30 to 45 kt wind north of 56N. W wind 30 to 45 kt south of 56N. Seas 22 to 32 ft. Snow and rain. .MON NIGHT...SW wind 30 to 45 kt. Seas 21 to 30 ft. .TUE...SW wind 20 to 35 kt. Seas 14 to 22 ft. .WED...NE wind up to 20 kt. Seas 13 to 21 ft. .THU...W wind 15 to 30 kt. Seas 12 to 18 ft. $$ PKZ412-250145- Bering Sea Offshore 171W to 180 and North of 56N- 400 AM AKST Sun Feb 24 2019 ...STORM WARNING TONIGHT... .TODAY...S wind 15 to 30 kt becoming SE 25 to 40 kt in the afternoon. Seas 9 to 14 ft. .TONIGHT...SE wind 35 to 50 kt. Seas 14 to 29 ft. Rain. .MON...SE wind 35 to 45 kt. Seas 20 to 32 ft. Rain and snow showers. .MON NIGHT...S wind 25 to 40 kt. Seas 20 to 31 ft. .TUE THROUGH WED...SE wind 20 to 35 kt. Seas 16 to 24 ft. .THU...S wind 20 to 30 kt. Seas 15 to 20 ft. $$ PKZ413-250145- Bering Sea Offshore 171W to 180 and South of 56N- 400 AM AKST Sun Feb 24 2019 ...STORM WARNING THROUGH TONIGHT... .TODAY...SE wind 20 to 35 kt increasing to 35 to 50 kt in the afternoon. Seas 10 to 18 ft. Rain. .TONIGHT...SE wind 35 to 50 kt. Seas 16 to 28 ft building to 23 to 31 ft after midnight. Rain. .MON...S wind 30 to 45 kt. Seas 20 to 31 ft. Snow with rain. .MON NIGHT...SW wind 20 to 35 kt. Seas 18 to 27 ft. .TUE THROUGH WED...SE wind 20 to 35 kt. Seas 14 to 22 ft. .THU...SW wind 20 to 30 kt. Seas 13 to 16 ft. $$ PKZ414-250145- Bering Sea Offshore East of 171W- 400 AM AKST Sun Feb 24 2019 ...GALE WARNING TONIGHT AND MONDAY... .TODAY...W wind up to 20 kt becoming E 10 to 25 kt in the afternoon. Seas 8 to 13 ft. .TONIGHT...E wind 15 to 30 kt becoming SE 25 to 40 kt after midnight. Seas 7 to 12 ft. .MON...SE wind 25 to 40 kt. Seas 10 to 18 ft. .MON NIGHT...S wind 15 to 30 kt. Seas 10 to 18 ft. .TUE THROUGH THU...S wind 20 to 35 kt. Seas 11 to 19 ft. $$
356 FZAK62 PAFC 250048 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 348 PM AKST Sun Feb 24 2019 Offshore Waters Forecast for the Bering Sea Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ499-251445- 348 PM AKST Sun Feb 24 2019 .SYNOPSIS FOR CENTRAL BERING SEA... A 959 mb low at 49N 179E Sun afternoon moves to 58N 175E at 957 mb by Mon morning and then moves over northern Kamchatka by Tue afternoon. A front associated with a North Pacific low moves over the central Aleutians Tue afternoon. $$ PKZ411-251445- Bering Sea Offshore West of 180 and East of the International Dateline- 348 PM AKST Sun Feb 24 2019 ...STORM WARNING THROUGH MONDAY NIGHT... .TONIGHT...E wind 35 to 50 kt. Seas 14 to 28 ft. Rain and snow. .MON...E wind 30 to 45 kt wind N of 56N. W wind 40 to 55 kt S of 56N. Seas 23 to 33 ft. Snow and rain. .MON NIGHT...SW wind 35 to 50 kt. Seas 20 to 30 ft. Freezing spray. Snow. .TUE...SW wind 20 to 35 kt. Seas 15 to 23 ft. .TUE NIGHT...S wind 10 to 25 kt. Seas 12 to 20 ft. .WED...NE wind up to 20 kt. Seas 13 to 21 ft. .THU THROUGH FRI...SW wind 15 to 30 kt. Seas 11 to 18 ft. $$ PKZ412-251445- Bering Sea Offshore 171W to 180 and North of 56N- 348 PM AKST Sun Feb 24 2019 ...STORM WARNING THROUGH MONDAY NIGHT... .TONIGHT...SE wind 35 to 50 kt. Seas 14 to 29 ft. Snow and rain. .MON...SE wind 35 to 50 kt. Seas 20 to 31 ft. Rain and snow. .MON NIGHT...S wind 35 to 50 kt diminishing to 25 to 40 kt after midnight. Seas 20 to 31 ft. Rain and snow showers. .TUE...S wind 15 to 30 kt. Seas 16 to 23 ft. .TUE NIGHT...S wind 25 kt. Seas 15 to 22 ft. .WED...SE wind 20 to 35 kt. Seas 16 to 24 ft. .THU THROUGH FRI...S wind 20 to 30 kt. Seas 12 to 20 ft. $$ PKZ413-251445- Bering Sea Offshore 171W to 180 and South of 56N- 348 PM AKST Sun Feb 24 2019 ...STORM WARNING THROUGH MONDAY... .TONIGHT...SE wind 40 to 55 kt. Seas 16 to 28 ft building to 23 to 30 ft after midnight. Rain and snow. .MON...SW wind 35 to 50 kt. Seas 20 to 32 ft. Snow and rain. .MON NIGHT...SW wind 25 to 35 kt diminishing to 15 to 30 kt after midnight. Seas 18 to 29 ft. Snow showers. .TUE...S wind 15 to 25 kt. Seas 14 to 20 ft. .TUE NIGHT...S wind 15 to 25 kt. Seas 12 to 20 ft. .WED...SE wind 20 to 35 kt. Seas 13 to 21 ft. .THU THROUGH FRI...SW wind 20 to 30 kt. Seas 11 to 16 ft. $$ PKZ414-251445- Bering Sea Offshore East of 171W- 348 PM AKST Sun Feb 24 2019 ...GALE WARNING THROUGH MONDAY... .TONIGHT...SE wind 20 to 35 kt increasing to 30 to 45 kt after midnight. Seas 8 to 13 ft. .MON...SE wind 30 to 45 kt becoming S 25 to 35 kt in the afternoon. Seas 10 to 18 ft. .MON NIGHT...S wind 15 to 30 kt. Seas 11 to 19 ft. Rain and snow. .TUE...S wind 15 to 30 kt. Seas 11 to 18 ft. .TUE NIGHT...S wind 15 to 25 kt. Seas 10 to 16 ft. .WED THROUGH FRI...S wind 20 to 35 kt. Seas 10 to 18 ft. $$
420 FZAK62 PAFC 251223 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 323 AM AKST Mon Feb 25 2019 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. PKZ499-260130- 323 AM AKST Mon Feb 25 2019 .SYNOPSIS FOR CENTRAL BERING SEA... A 960 mb low at 54N 178E moves over Northern Kamchatka at 963 mb for Tue morning. Its front pushes into Western Alaska by Tue afternoon. A 993 mb low near 44N 169E Tue morning moves to 59N 175W at 988 mb Wed morning. Its front trails across the Central Aleutians to a 990 mb low at 49N 178W by Wed morning. $$ PKZ411-260130- Bering Sea Offshore West of 180 and East of the International Dateline- 323 AM AKST Mon Feb 25 2019 ...STORM WARNING THROUGH TONIGHT... .TODAY...SW wind 40 to 55 kt. Seas 23 to 34 ft. Freezing spray. Snow and rain. .TONIGHT...SW wind 35 to 50 kt. Seas 20 to 32 ft. Freezing spray. Snow. .TUE...SW wind 20 to 35 kt becoming 25 kt in the afternoon. Seas 16 to 24 ft. .TUE NIGHT...S wind 10 to 25 kt. Seas 8 to 16 ft. .WED...W wind 10 to 25 kt. Seas 7 to 10 ft. .THU THROUGH FRI...SW wind 10 to 25 kt. Seas 7 to 12 ft. $$ PKZ412-260130- Bering Sea Offshore 171W to 180 and North of 56N- 323 AM AKST Mon Feb 25 2019 ...STORM WARNING THROUGH TONIGHT... .TODAY...SE wind 35 to 50 kt. Seas 20 to 31 ft. .TONIGHT...S wind 35 to 50 kt diminishing to 25 to 40 kt after midnight. Seas 20 to 33 ft. .TUE...S wind 15 to 30 kt. Seas 16 to 24 ft. .TUE NIGHT...S wind 10 to 25 kt. Seas 11 to 17 ft. .WED...S wind 20 to 35 kt. Seas 12 to 20 ft. .THU...SW wind 15 to 30 kt. Seas 11 to 19 ft. .FRI...SW wind 20 kt. Seas 9 ft. $$ PKZ413-260130- Bering Sea Offshore 171W to 180 and South of 56N- 323 AM AKST Mon Feb 25 2019 ...STORM WARNING TODAY... .TODAY...SW wind 35 to 50 kt. Seas 19 to 33 ft. Snow and rain. .TONIGHT...SW wind 25 to 35 kt diminishing to 15 to 30 kt after midnight. Seas 19 to 30 ft. .TUE...S wind 10 to 25 kt. Seas 13 to 21 ft. .TUE NIGHT...S wind 10 to 25 kt. Seas 9 to 16 ft. .WED...SW wind 25 to 40 kt. Seas 11 to 19 ft. .THU THROUGH FRI...SW wind 15 to 25 kt. Seas 9 to 14 ft. $$ PKZ414-260130- Bering Sea Offshore East of 171W- 323 AM AKST Mon Feb 25 2019 ...GALE WARNING TODAY... .TODAY...SE wind 25 to 40 kt. Seas 10 to 18 ft. .TONIGHT...S wind 20 to 30 kt diminishing to 10 to 25 kt after midnight. Seas 11 to 19 ft. .TUE...S wind 10 to 25 kt. Seas 10 to 18 ft. .TUE NIGHT...S wind 20 to 30 kt. Seas 10 to 18 ft. .WED THROUGH THU...SW wind 25 to 40 kt. Seas 13 to 21 ft. .FRI...SW wind up to 15 kt. Seas 7 ft. $$
134 FZAK62 PAFC 260004 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 304 PM AKST Mon Feb 25 2019 Offshore Waters Forecast for the Bering Sea Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ499-261430- 304 PM AKST Mon Feb 25 2019 .SYNOPSIS FOR CENTRAL BERING SEA... A 956 mb low at 57N 177E Mon afternoon moves over northern Kamchatka by Tue morning. A 989 mb low Tue afternoon at 50N 179E moves into the northern Bering by Wed afternoon. A 987 mb low at 49N 178W Wed morning moves to 56N 174W at 982 mb by Wed afternoon. $$ PKZ411-261430- Bering Sea Offshore West of 180 and East of the International Dateline- 304 PM AKST Mon Feb 25 2019 ...STORM WARNING TONIGHT... .TONIGHT...SW wind 35 to 50 kt. Seas 20 to 32 ft. Freezing spray west of 177W. Snow. .TUE...SW wind 20 to 35 kt. Seas 15 to 23 ft. Freezing spray west of 177W. .TUE NIGHT...SW wind 10 to 25 kt. Seas 9 to 15 ft. .WED...NW wind up to 15 kt. Seas 7 to 10 ft. .WED NIGHT...W wind 10 to 25 kt. Seas 7 to 11 ft. .THU THROUGH FRI...SW wind 10 to 25 kt. Seas 7 to 11 ft. .SAT...SE wind 25 to 40 kt. Seas 14 to 22 ft. $$ PKZ412-261430- Bering Sea Offshore 171W to 180 and North of 56N- 304 PM AKST Mon Feb 25 2019 ...STORM WARNING TONIGHT... .TONIGHT...S wind 35 to 50 kt diminishing to 25 to 40 kt after midnight. Seas 20 to 33 ft. .TUE...S wind 15 to 30 kt. Seas 16 to 24 ft. .TUE NIGHT...SE wind 15 to 30 kt. Seas 12 to 17 ft. Snow with rain. .WED...N wind 20 to 35 kt. Seas 11 to 19 ft. .WED NIGHT...W wind 20 to 35 kt. Seas 12 to 20 ft. .THU...SW wind 15 to 30 kt. Seas 11 to 19 ft. .FRI THROUGH SAT...S wind 15 to 30 kt. Seas 10 to 18 ft. $$ PKZ413-261430- Bering Sea Offshore 171W to 180 and South of 56N- 304 PM AKST Mon Feb 25 2019 ...GALE WARNING TONIGHT AND TUESDAY NIGHT... .TONIGHT...SW wind 25 to 35 kt diminishing to 15 to 30 kt after midnight. Seas 19 to 30 ft. .TUE...S wind 15 to 25 kt. Seas 14 to 21 ft. .TUE NIGHT...SE wind 20 to 35 kt becoming SW 15 to 30 kt after midnight. Seas 11 to 19 ft. Snow with rain. .WED...NW wind 25 to 40 kt. Seas 11 to 19 ft. .WED NIGHT...W wind 15 to 30 kt. Seas 10 to 18 ft. .THU THROUGH FRI...SW wind 15 to 25 kt. Seas 9 to 15 ft. .SAT...S wind 25 to 40 kt. Seas 12 to 20 ft. $$ PKZ414-261430- Bering Sea Offshore East of 171W- 304 PM AKST Mon Feb 25 2019 ...GALE WARNING TUESDAY NIGHT... .TONIGHT...S wind 20 to 30 kt diminishing to 10 to 25 kt after midnight. Seas 11 to 19 ft. .TUE...S wind 10 to 25 kt becoming 20 kt in the afternoon. Seas 10 to 18 ft. .TUE NIGHT...S wind 25 to 40 kt. Seas 11 to 19 ft. Rain. .WED...S wind 30 to 40 kt. Seas 14 to 22 ft. .WED NIGHT...S wind 25 to 40 kt. Seas 16 to 23 ft. .THU...SW wind 15 to 30 kt. Seas 11 to 19 ft. .FRI THROUGH SAT...SW wind up to 20 kt. Seas 5 to 8 ft. $$
What forecasters said that day
The local office's own words before this storm 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 storm warning went out at Feb 22, 4:21 PM AKST, 11 hours 34 minutes earlier.
Area forecast discussion, Feb 22, 4:21 PM AKST, 11 hours 34 minutes before
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 421 PM AKST Fri Feb 22 2019 .ANALYSIS AND UPPER LEVELS... A ridge continues to build over mainland Alaska, with a trough digging in over the Bering, which will be the dominant synoptic pattern through early next week. Southcentral is experiencing dry conditions and offshore flow as this ridge starts to amplify over the area. A front stretching from the North Pacific to the northern Bering along the western part of the ridge is bringing gusty conditions and rain showers across the western and central Aleutians and Bering. && .MODEL DISCUSSION... The numerical models are generally in very good agreement through Sunday afternoon. Out west, there are some differences in how the models handle a low moving across the central/western Aleutians Friday afternoon and then northward across the central Bering Friday night and Saturday. With a ridge and subsidence over Southcentral, some fog is expected and the models generally do not do very well with low level moisture. The forecast confidence for the afternoon package is above normal, except below normal for the fog. && .AVIATION... PANC...VFR conditions and light winds will persist into this evening. LIFR conditions in fog are expected beginning around midnight, and continuing through the morning. The timing and density of the fog around there area is uncertain, but judging from last night conditions, it should move in. Then conditions should improve Saturday afternoon as the fog lifts/clears. && .SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3)... (Tonight through Monday) As a former colleague of mine would say, "big bubble...no trouble". That is the best way to some up at least the next few days, as high pressure will continue to build across Southcentral through the period. This will allow fog to develop during the nocturnal hours and persist through the morning. For tonight, it looks like portions of Copper Basin and Western Kenai up through the western Anchorage Bowl will see the greatest impact from this. Then, as the ridge will continue to strengthen over the next few days, look for the fog to increase in coverage and density, with visibilities 1/2 mile or less a real possibility for many locations. With a higher sun angle compared to the past few months, most locations should experience enough heating to help mix out some or all of the fog during the afternoon hours, except for the Copper Basin. Here, much colder air being trapped in the valleys will make it more difficult for this to occur. && .SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2...Saturday and Sunday)... As upper level ridging builds over the southern mainland, and moisture from a low and its associated front over the Central Aleutians flows over the top of this ridge, the resulting moist southwest onshore flow over the Kuskokwim Delta will keep a chance of precipitation across the region through tonight. As this ridge is pushed east by the low and front moving into the Bering Sea Saturday, increased moisture moves to the Kuskokwim Delta coast once again increasing the chance for precipitation Saturday afternoon and night. Along with this increased moisture will be very warm low level air, and the 850 mb level temperatures are expected to warm from -10C to 0C Saturday. This will result in precipitation, if any, in the form of rain. By Sunday the upper ridge is shoved over the Southcentral region, thus increased cloud cover and chances of precipitation can be expected over the southwest mainland Sunday. && .SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2...Saturday and Sunday)... A low now over the central Aleutians will continue to trek north with its associated frontal boundary pushing east to south of the Aleutians Sunday producing a strong gradient in advance of the front and around the low resulting in strong wind. Temperatures will support snow at first then a mix of rain and snow. This elevates the concern for a brief period of possible blizzard conditions for the central and western Aleutians Sunday. && .MARINE (Days 3 through 5)... There is high confidence in a deep storm-force low crossing the Western Aleutians late Sunday into Monday. A widespread area of southeasterly gales, with the potential for smaller core of storm- force winds, are expected across the central and western Bering ahead of this system through late Monday. Westerly storm- force winds will wrap underneath the low, impacting the coastal water surrounding the western and central Aleutians. Waves with this system will rise to 30 to 40 feet on the Pacific side of the western and central Aleutians and to 20 to 30 feet across the western and central Bering. Winds and waves will slowly decrease in intensity and height as the low lifts north Tuesday. Confidence is also above average with a second deepening storm-force low moving across the central Aleutians and into the central and eastern Bering late Tuesday into Wednesday with widespread southerly gales, areas of storms, and wave heights building to over 20 feet. High pressure anchored over the Gulf of Alaska will allow generally westerly, sub small-craft winds along the coast from Kodiak Island to Cordova through midweek. && .LONG TERM FORECAST (Days 3 through 7...Mon through Fri)... An established omega block stretching from the western Aleutians east to the Canadian Interior will anchor a ridge directly over Southcentral through much of next week. The vertically stacked ridge will result in a rather tranquil weather pattern, with the biggest forecast challenge through the period being fog, due to the weak flow in the lower levels and warmer air advecting northward in the mid-levels. Drier conditions and light winds will also allow for larger diurnal temperature swings, with daytime highs across Southcentral running slightly above average and nighttime lows below average. A few areas of scattered cloud cover may develop late Monday into Tuesday from Kodiak north through the Cook inlet and again late Wednesday into Thursday across western areas of Southcentral as two shortwaves rotate around the ridge. Both of these systems, however, are expected to weaken and shear apart as they lift northward. For the southwest mainland, conditions will remain more unsettled with the region sitting in the transition zone between the main trough to the west and the ridge to the east. Here, a series of fronts will track toward the coast, move inland and fall apart as they run into the ridge. The first will arrive late Sunday and linger through Monday before a second reinforces the southerly flow and precipitation (especially along the coast) late Monday through Tuesday. These systems then fall apart as the ridge to the east shifts a bit to the west. A third front is then expected to impact the southwest late Thursday into Friday. The challenge here will be precipitation type, especially as a persistent southerly flow continues to bring warmer air into the region. The first two systems look to be mostly a rain event along the coast (with snow aloft and over the interior), but slightly colder air in place over the region prior to the third frontal system may bring a wintry mix to all locations during the onset of precipitation before the warmer air arrives. Farther west, the weather pattern is expected to remain quite active with a deep trough anchored over the Bering. we have a very active pattern on tap for next week. The week starts with a strong storm-force low crossing the western Aleutians into the western Bering. This low lifts north, a second gale-force low follows behind the first and tracks north into the western Bering beginning early Wednesday. Broad, cyclonic flow and areas of showers continue across the Bering as this second storm lifts north. A newly developing North Pacific low is then expected to advance toward the western Aleutians by the end of next week. && .AFC WATCHES/WARNINGS/ADVISORIES... PUBLIC...NONE. MARINE...Gale Warning: 150-170, 172-177, 179-185, 411-414. FIRE WEATHER...NONE. && SYNOPSIS AND MODEL DISCUSSION...AH/BL SOUTHCENTRAL ALASKA...PD SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...SA MARINE/LONG TERM...TM
The office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 3:43 PM AKST | Gale Warning | AFC | 72 hr | |
| Feb 22, 3:53 PM AKST | Small Craft Advisory | AFC | 71 hr | |
| Feb 23, 3:39 AM AKST | Small Craft Advisory | AFC | 36 hr | |
| Feb 23, 4:14 AM AKST | Gale Warning | AFC | 11 hr | |
| Feb 23, 4:14 AM AKST | Storm Warning | AFC | 59 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.