Alert archive / Alaska / Gale Warnings in 2018
Gale Warning 111, NWS Anchorage, AK
NWS Anchorage, AK issued this gale warning at Feb 10, 2018, 3:43 PM AKST. It was in force for 60 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 10, 2018, 3:43 PM AKST (00:43 UTC)
- Expired
- Feb 13, 2018, 3:25 AM AKST
- In force
- 60 hr
- Issued by
- NWS Anchorage, AK
The text
As transmitted.
544 FZAK62 PAFC 110043 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 343 PM AKST Sat Feb 10 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. PKZ499-111415- 343 PM AKST Sat Feb 10 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A 993 mb low at 56N 166W moves into the Gulf of Anadyr Sun afternoon at 998 mb. A 995 mb low at 51N 164W Sun afternoon moves over Bristol Bay Sun evening at 997 mb and then moves inland Sun night. A strong front moves over the western Bering Mon afternoon. $$ PKZ411-111415- Bering Sea Offshore West of 180 and East of the International Dateline- 343 PM AKST Sat Feb 10 2018 ...GALE WARNING SUNDAY NIGHT... .TONIGHT...W wind 10 to 15 kt. Seas 7 ft. .SUN...W wind 10 to 20 kt. Seas 6 ft. .SUN NIGHT...S wind 15 to 30 kt increasing to 25 to 40 kt after midnight. Seas 7 to 12 ft. Snow and rain. .MON...S wind 30 to 45 kt. Seas 12 to 20 ft. .MON NIGHT...SW wind 20 to 30 kt. Seas 19 to 23 ft. .TUE...SW wind 20 to 30 kt. Seas 19 to 25 ft. .WED...S wind 15 kt. Seas 9 to 13 ft. .THU...SE wind up to 20 kt. Seas 8 ft. $$ PKZ412-111415- Bering Sea Offshore 171W to 180 and North of 56N- 343 PM AKST Sat Feb 10 2018 .TONIGHT...NW wind 10 to 25 kt. Seas 6 to 9 ft. .SUN...W wind 10 to 25 kt. Seas 8 ft. .SUN NIGHT...W wind 15 to 25 kt. Seas 6 to 10 ft. .MON...S wind 25 to 40 kt. Seas 9 to 14 ft. .MON NIGHT...S wind 25 to 40 kt. Seas 12 to 20 ft. .TUE THROUGH THU...SE wind 15 to 30 kt. Seas 11 to 19 ft. $$ PKZ413-111415- Bering Sea Offshore 171W to 180 and South of 56N- 343 PM AKST Sat Feb 10 2018 .TONIGHT...W wind 15 to 25 kt. Seas 7 to 10 ft. .SUN...NW wind 20 kt. Seas 6 to 9 ft. .SUN NIGHT...W to S wind 15 to 30 kt. Seas 7 ft. .MON...S wind 30 to 45 kt. Seas 11 to 19 ft. .MON NIGHT...SW wind 30 to 45 kt. Seas 14 to 22 ft. .TUE THROUGH THU...S wind 10 to 25 kt. Seas 11 to 19 ft. $$ PKZ414-111415- Bering Sea Offshore East of 171W- 343 PM AKST Sat Feb 10 2018 .TONIGHT...S wind 10 to 25 kt. Seas 7 ft. .SUN...SW wind 10 to 20 kt. Seas 7 ft. .SUN NIGHT...NW wind 15 to 30 kt. Seas 5 to 10 ft. .MON...W wind 15 to 25 kt. Seas 7 to 11 ft. .MON NIGHT...S wind 25 to 40 kt. Seas 9 to 17 ft. .TUE...SW wind 20 to 35 kt. Seas 11 to 19 ft. .WED THROUGH THU...SE wind 10 to 25 kt. Seas 8 to 13 ft. $$
5 follow-up statements
408 FZAK62 PAFC 111226 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 326 AM AKST Sun Feb 11 2018 Offshore Waters Forecast for the Bering Sea Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ499-120215- 326 AM AKST Sun Feb 11 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A 998 mb low at 59N 175W moves to 68N 167W at 1000 mb Mon afternoon. A 985 mb low near 45N 167W moves to 60N 163W at 995 mb by Midnight Sunday. The associated front sweeps across the Gulf of Alaska through Tue morning. A 956 mb Kamchatka low pushes a front over the Western Aleutians for Tue morning. $$ PKZ411-120215- Bering Sea Offshore West of 180 and East of the International Dateline- 326 AM AKST Sun Feb 11 2018 ...GALE WARNING TONIGHT AND MONDAY... .TODAY...W wind 10 to 20 kt. Seas 6 ft. .TONIGHT...S wind 15 to 30 kt increasing to 25 to 40 kt after midnight. Seas 7 to 12 ft. Snow and rain. .MON...S wind 30 to 45 kt. Seas 13 to 21 ft. Rain and snow. .MON NIGHT...SW wind 30 kt. Seas 18 to 21 ft. .TUE THROUGH WED...S wind 15 to 30 kt. Seas 13 to 21 ft. .THU...SE wind up to 15 kt. Seas 8 to 13 ft. $$ PKZ412-120215- Bering Sea Offshore 171W to 180 and North of 56N- 326 AM AKST Sun Feb 11 2018 ...GALE WARNING MONDAY... .TODAY...W wind 10 to 25 kt. Seas 8 ft. .TONIGHT...W wind 15 to 25 kt. Seas 6 to 10 ft. .MON...SW wind 15 to 30 kt becoming S 25 to 40 kt in the afternoon. Seas 6 to 9 ft building to 9 to 17 ft in the afternoon. Rain. .MON NIGHT...S wind 25 to 40 kt. Seas 13 to 21 ft. .TUE...SW wind 15 to 30 kt. Seas 15 to 22 ft. .WED THROUGH THU...SE wind 10 to 20 kt. Seas 11 to 19 ft. $$ PKZ413-120215- Bering Sea Offshore 171W to 180 and South of 56N- 326 AM AKST Sun Feb 11 2018 ...GALE WARNING MONDAY... .TODAY...NW wind 15 to 25 kt. Seas 7 ft. .TONIGHT...W wind 15 to 30 kt. Seas 5 to 9 ft. .MON...S wind 30 to 45 kt. Seas 11 to 19 ft. Rain. .MON NIGHT...SW wind 30 to 45 kt. Seas 15 to 23 ft. .TUE...SW wind 15 to 30 kt. Seas 12 to 20 ft. .WED THROUGH THU...S wind up to 15 kt. Seas 8 to 16 ft. $$ PKZ414-120215- Bering Sea Offshore East of 171W- 326 AM AKST Sun Feb 11 2018 .TODAY...SW wind 10 to 20 kt. Seas 7 ft. .TONIGHT...NW wind 15 to 30 kt. Seas 6 to 11 ft. .MON...W wind 15 to 25 kt. Seas 7 to 11 ft. .MON NIGHT...S wind 25 to 40 kt. Seas 9 to 17 ft. .TUE...SW wind 25 to 40 kt. Seas 11 to 19 ft. .WED THROUGH THU...SE wind up to 15 kt. Seas 8 to 13 ft. $$
002 FZAK62 PAFC 120000 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 300 PM AKST Sun Feb 11 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. PKZ499-121500- 300 PM AKST Sun Feb 11 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A 994 mb low at 54N 164W moves over Bristol Bay this evening and then moves inland. A front associated with a Kamchatka low enters the western Bering tonight. The front moves over the central Bering Mon night and reaches the eastern Bering Tue afternoon. $$ PKZ411-121500- Bering Sea Offshore West of 180 and East of the International Dateline- 300 PM AKST Sun Feb 11 2018 ...GALE WARNING THROUGH MONDAY... .TONIGHT...S wind 15 to 30 kt increasing to 25 to 40 kt after midnight. Seas 7 to 12 ft. Snow and rain. .MON...S wind 25 to 40 kt. Seas 12 to 20 ft. Rain. .MON NIGHT...SW wind 20 to 30 kt. Seas 17 to 21 ft. Rain showers and snow showers. .TUE...SW wind 30 kt. Seas 19 to 22 ft. .TUE NIGHT...S wind 20 to 30 kt. Seas 17 to 21 ft. .WED...SE wind 10 to 25 kt. Seas 12 to 20 ft. .THU THROUGH FRI...SE wind up to 15 kt. Seas 9 to 17 ft. $$ PKZ412-121500- Bering Sea Offshore 171W to 180 and North of 56N- 300 PM AKST Sun Feb 11 2018 ...GALE WARNING MONDAY AND MONDAY NIGHT... .TONIGHT...W wind 15 to 30 kt. Seas 6 to 10 ft. .MON...S wind 15 to 30 kt increasing to 25 to 40 kt in the afternoon. Seas 6 to 9 ft building to 8 to 16 ft in the afternoon. Rain. .MON NIGHT...S wind 25 to 40 kt. Seas 15 to 23 ft. Rain. .TUE...SW wind 20 to 30 kt. Seas 18 to 25 ft. .TUE NIGHT...SW wind 15 to 30 kt. Seas 15 to 20 ft. .WED THROUGH FRI...SE wind 10 to 25 kt. Seas 10 to 18 ft. $$ PKZ413-121500- Bering Sea Offshore 171W to 180 and South of 56N- 300 PM AKST Sun Feb 11 2018 ...GALE WARNING MONDAY AND MONDAY NIGHT... .TONIGHT...SW wind 15 to 30 kt. Seas 6 to 9 ft. .MON...S wind 30 to 45 kt. Seas 11 to 19 ft. Rain. .MON NIGHT...S wind 30 to 45 kt. Seas 16 to 24 ft. Rain. .TUE...SW wind 15 to 30 kt. Seas 14 to 22 ft. .TUE NIGHT...S wind 10 to 25 kt. Seas 11 to 19 ft. .WED...SE wind 10 to 25 kt. Seas 10 to 16 ft. .THU THROUGH FRI...S wind up to 20 kt. Seas 9 to 16 ft. $$ PKZ414-121500- Bering Sea Offshore East of 171W- 300 PM AKST Sun Feb 11 2018 ...GALE WARNING MONDAY NIGHT... .TONIGHT...W wind 15 to 30 kt. Seas 6 to 11 ft. .MON...W wind 20 to 30 kt. Seas 7 to 12 ft. .MON NIGHT...S wind 25 to 40 kt. Seas 9 to 17 ft. .TUE...S wind 25 to 40 kt. Seas 13 to 21 ft. .TUE NIGHT...SW wind 10 to 25 kt. Seas 10 to 18 ft. .WED THROUGH FRI...S wind up to 20 kt. Seas 8 to 13 ft. $$
685 FZAK62 PAFC 121221 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 321 AM AKST Mon Feb 12 2018 Offshore Waters Forecast for the Bering Sea Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ499-130230- 321 AM AKST Mon Feb 12 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A front over the Alaska Peninsula enters the Gulf of Alaska Mon afternoon. A 956 mb Kamchatka low extends a front that pushes into the Eastern Aleutians by Wed morning. A 987 mb North Pacific low moves to 46N 173E for Wed morning. $$ PKZ411-130230- Bering Sea Offshore West of 180 and East of the International Dateline- 321 AM AKST Mon Feb 12 2018 ...GALE WARNING THROUGH TUESDAY... .TODAY...S wind 25 to 40 kt. Seas 11 to 19 ft. Rain and snow. .TONIGHT...SW wind 25 to 40 kt. Seas 17 to 23 ft. Snow showers and rain showers. .TUE...SW wind 25 to 35 kt. Seas 19 to 22 ft. .TUE NIGHT...SW wind 30 kt. Seas 17 to 23 ft. .WED...SE wind 20 to 35 kt. Seas 12 to 20 ft. .THU THROUGH FRI...S wind 20 to 35 kt. Seas 12 to 20 ft. $$ PKZ412-130230- Bering Sea Offshore 171W to 180 and North of 56N- 321 AM AKST Mon Feb 12 2018 ...GALE WARNING THROUGH TUESDAY... .TODAY...S wind 15 to 30 kt increasing to 25 to 40 kt in the afternoon. Seas 6 to 9 ft building to 8 to 16 ft in the afternoon. Snow and rain. .TONIGHT...S wind 30 to 45 kt. Seas 14 to 22 ft building to 21 to 28 ft after midnight. Rain and snow. .TUE...SW wind 25 to 40 kt becoming 30 kt in the afternoon. Seas 19 to 26 ft. .TUE NIGHT...SW wind 15 to 30 kt. Seas 16 to 21 ft. .WED THROUGH FRI...S wind 20 to 35 kt. Seas 11 to 19 ft. $$ PKZ413-130230- Bering Sea Offshore 171W to 180 and South of 56N- 321 AM AKST Mon Feb 12 2018 ...STORM WARNING TONIGHT... .TODAY...S wind 30 to 45 kt. Seas 11 to 19 ft. Rain. .TONIGHT...S wind 35 to 50 kt. Seas 15 to 22 ft building to 22 to 27 ft after midnight. Rain. .TUE...SW wind 30 to 45 kt diminishing to 15 to 30 kt in the afternoon. Seas 15 to 25 ft. Rain. .TUE NIGHT...SW wind 15 to 30 kt. Seas 13 to 19 ft. .WED...SE wind 20 to 35 kt. Seas 12 to 16 ft. .THU THROUGH FRI...S wind 20 to 35 kt. Seas 12 to 19 ft. $$ PKZ414-130230- Bering Sea Offshore East of 171W- 321 AM AKST Mon Feb 12 2018 ...GALE WARNING TONIGHT AND TUESDAY... .TODAY...W wind 20 to 30 kt. Seas 7 to 11 ft. .TONIGHT...S wind 30 to 45 kt. Seas 8 to 13 ft building to 11 to 19 ft after midnight. .TUE...S wind 30 to 45 kt. Seas 15 to 23 ft. Rain. .TUE NIGHT...SW wind 15 to 30 kt. Seas 12 to 18 ft. .WED THROUGH FRI...S wind 15 to 30 kt. Seas 9 to 17 ft. $$
766 FZAK62 PAFC 130005 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 305 PM AKST Mon Feb 12 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. PKZ499-131400- 305 PM AKST Mon Feb 12 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A front extending from a 962 mb Kamchatka low will move east across the Bering and Aleutian chain through Wed morning. A 987 mb North Pacific low will move to near 49N 179W by Wed afternoon. $$ PKZ411-131400- Bering Sea Offshore West of 180 and East of the International Dateline- 305 PM AKST Mon Feb 12 2018 ...GALE WARNING TONIGHT... .TONIGHT...SW wind 25 to 40 kt. Seas 17 to 23 ft. Rain and snow showers. .TUE...SW wind 30 kt. Seas 19 to 22 ft. Snow showers. .TUE NIGHT...SW wind 20 to 30 kt. Seas 16 to 21 ft. .WED...S wind 10 to 25 kt. Seas 12 to 19 ft. .WED NIGHT...NE wind 15 to 30 kt. Seas 9 to 15 ft. .THU...SW wind 20 to 35 kt. Seas 9 to 14 ft. .FRI THROUGH SAT...SW wind 15 to 30 kt. Seas 14 to 21 ft. $$ PKZ412-131400- Bering Sea Offshore 171W to 180 and North of 56N- 305 PM AKST Mon Feb 12 2018 ...GALE WARNING THROUGH TUESDAY... .TONIGHT...S wind 30 to 45 kt. Seas 14 to 22 ft building to 21 to 26 ft after midnight. Rain and snow. .TUE...SW wind 25 to 35 kt. Seas 20 to 25 ft. .TUE NIGHT...SW wind 20 to 30 kt. Seas 16 to 20 ft. .WED...S wind 10 to 25 kt. Seas 13 to 17 ft. .WED NIGHT...E wind 20 to 35 kt. Seas 12 to 16 ft. .THU THROUGH FRI...S wind 20 to 35 kt. Seas 11 to 19 ft. .SAT...S wind 10 to 25 kt. Seas 15 to 19 ft. $$ PKZ413-131400- Bering Sea Offshore 171W to 180 and South of 56N- 305 PM AKST Mon Feb 12 2018 ...STORM WARNING TONIGHT... .TONIGHT...S wind 35 to 50 kt. Seas 15 to 26 ft. Rain. .TUE...SW wind 20 to 35 kt. Seas 15 to 23 ft. .TUE NIGHT...SW wind 15 to 30 kt. Seas 12 to 19 ft. .WED...SE wind 15 to 30 kt. Seas 12 to 15 ft. .WED NIGHT...E wind 20 to 35 kt. Seas 9 to 14 ft. .THU THROUGH FRI...S wind 25 to 40 kt. Seas 13 to 21 ft. .SAT...S wind 10 to 20 kt. Seas 13 to 20 ft. $$ PKZ414-131400- Bering Sea Offshore East of 171W- 305 PM AKST Mon Feb 12 2018 ...GALE WARNING THROUGH TUESDAY... .TONIGHT...S wind 30 to 45 kt. Seas 9 to 17 ft. Rain. .TUE...S wind 30 to 45 kt becoming SW 20 to 35 kt in the afternoon. Seas 14 to 22 ft. Rain. .TUE NIGHT...SW wind 15 to 30 kt diminishing to 10 to 20 kt after midnight. Seas 11 to 18 ft. Rain. .WED...S wind up to 20 kt. Seas 8 to 12 ft. .WED NIGHT...E wind 15 to 30 kt. Seas 8 to 12 ft. .THU THROUGH SAT...S wind 15 to 30 kt. Seas 9 to 17 ft. $$
006 FZAK62 PAFC 131225 OFFALU Offshore Waters Forecast National Weather Service Anchorage AK 325 AM AKST Tue Feb 13 2018 Offshore Waters Forecast for the Bering Sea Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ499-140200- 325 AM AKST Tue Feb 13 2018 .SYNOPSIS FOR CENTRAL BERING SEA... A 963 mb Kamchatka low brings a front through the Central Aleutians. The front moves into Western Alaska by Wed afternoon. A 997 mb North Pacific low moves to 50N 179W at 987 mb Wed afternoon and continues to 55N 177W at 988 mb by Thu morning. Its associated front pushes into the Eastern Aleutians by Thu morning. $$ PKZ411-140200- Bering Sea Offshore West of 180 and East of the International Dateline- 325 AM AKST Tue Feb 13 2018 .TODAY...SW wind 30 kt. Seas 19 to 22 ft. Snow showers. .TONIGHT...SW wind 20 to 30 kt. Seas 16 to 22 ft. .WED...S wind 10 to 25 kt. Seas 13 to 19 ft. .WED NIGHT...NE wind 15 to 30 kt. Seas 9 to 14 ft. .THU THROUGH SAT...SW wind 15 to 30 kt. Seas 11 to 19 ft. $$ PKZ412-140200- Bering Sea Offshore 171W to 180 and North of 56N- 325 AM AKST Tue Feb 13 2018 ...GALE WARNING TODAY... .TODAY...SW wind 25 to 35 kt. Seas 20 to 25 ft. .TONIGHT...SW wind 20 to 30 kt. Seas 17 to 21 ft. .WED...S wind 10 to 25 kt. Seas 11 to 18 ft. .WED NIGHT...E wind 20 to 35 kt. Seas 11 to 18 ft. .THU THROUGH SAT...S wind 20 to 35 kt. Seas 11 to 19 ft. $$ PKZ413-140200- Bering Sea Offshore 171W to 180 and South of 56N- 325 AM AKST Tue Feb 13 2018 ...GALE WARNING TODAY... .TODAY...SW wind 20 to 35 kt. Seas 15 to 23 ft. .TONIGHT...SW wind 15 to 30 kt. Seas 13 to 20 ft. .WED...S wind 10 to 20 kt becoming SE 15 to 30 kt in the afternoon. Seas 10 to 16 ft. .WED NIGHT...E wind 20 to 35 kt. Seas 10 to 17 ft. .THU THROUGH FRI...S wind 25 to 40 kt. Seas 12 to 20 ft. .SAT...S wind 10 to 20 kt. Seas 13 to 20 ft. $$ PKZ414-140200- Bering Sea Offshore East of 171W- 325 AM AKST Tue Feb 13 2018 ...GALE WARNING TODAY... .TODAY...S wind 30 to 45 kt becoming SW 20 to 35 kt in the afternoon. Seas 13 to 21 ft. Rain and snow. .TONIGHT...SW wind 15 to 30 kt diminishing to 10 to 20 kt after midnight. Seas 13 to 17 ft. Rain. .WED...S wind 10 to 20 kt. Seas 8 to 13 ft. .WED NIGHT...E wind 15 to 30 kt. Seas 8 to 13 ft. .THU THROUGH SAT...S wind 20 to 35 kt. Seas 11 to 19 ft. $$
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 10, 4:50 AM AKST, 10 hours 53 minutes earlier.
Area forecast discussion, Feb 10, 4:50 AM AKST, 10 hours 53 minutes before
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 450 AM AKST Sat Feb 10 2018 .ANALYSIS AND UPPER LEVELS... A stacked low pressure system located just south of the eastern Aleutians is slowly tracking north early this morning. The associated occluded surface front is spreading rain from the central Aleutians to the northern Bering. This front extends eastward across the southern mainland to the central Gulf with light rain and snow developing across the Southwest and light rain over the Gulf. Winds along the frontal boundary tapered down significantly overnight across the Bering with the strongest gusts now mainly across the Southwest. Ahead of the front, a cold air mass remains in place over the Copper River Basin with 33 below reported in Glennallen this morning. Elsewhere across Southcentral, temperatures have moderated slightly warmer than previous mornings as cloud cover streams overhead and the trough edges further east. && .MODEL DISCUSSION... Models are generally in good agreement with the synoptic pattern through the start of next week, however there is still some uncertainty in how they handle the surface low that tracks into the Bering today. The GFS and ECMWF track this feature slightly faster north than the NAM, but the main details that bring forecast uncertainty is how far north the warm air mass is pulled. The GFS was mainly used to update the Southwest and Bering with a combined model approach across Southcentral and the Gulf. && .AVIATION... PANC...VFR conditions are expected today with increasing cloud cover through the evening as a front moves up from the Southwest. MVFR ceilings were introduced after midnight as the boundary moves up from the Kenai. Light snow is expected to develop along this boundary; visibilities may need to be adjusted if the system remains better organized than currently expected. Light winds today increase out of the southeast Sunday morning with the pressure gradient shifting in response to the surface low lifting north. && .SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)... A gale force front over the southwest Gulf will continue to slowly weaken as it lifts northward today, with light precipitation spreading to the Kenai Peninsula coastal areas and clouds moving inland across the remainder of Southcentral. An approaching upper level trough will split into two, with one short-wave shooting eastward across the northeast Pacific (just south of the Gulf of Alaska) and the other short-wave tracking northward across the southern mainland of Alaska tonight through Sunday. This will really serve to elongate and weaken the surface front as it approaches the north Gulf coast tonight. The upper trough does look a little stronger than previous guidance indicated, so have upped the forecast to likely to categorical probability of snow tonight for everywhere but the Copper River Basin. Vertical motion will be weak, so generally expect an inch or less of snow. There will be very little break between this system and the next, with an amplifying pattern over the North Pacific leading development of a strong southerly jet which will head right for the Alaska Peninsula Sunday then curve northeastward into Southcentral Alaska on Monday. This jet will ultimately steer a weakening low northward to Southwest Alaska Sunday night. However, isentropic lift will spread way out ahead of the low center, with precipitation spreading northward across the western Gulf Sunday afternoon and up to Southcentral Sunday evening. It looks cold enough for precipitation to start as mostly snow across Southcentral, with the exception of the Gulf coast, but much warmer air will advect northward Sunday night into Monday, leading to a transition to all rain for areas near the coast. Precipitation intensity will begin to increase Sunday night as the upper jet arrives and the upper trough and surface low make northward progress. A low track to the west of Southcentral often leads to downslope winds and drying along the west side of mountain ranges. However, in this case, the southeast flow will be fairly shallow, with south to southwest flow through most of the atmosphere. In addition, the dynamic lift and abundance of moisture with this system are impressive. Thus, have forecasted high PoPs area-wide. Though the southeast flow will not lead to complete drying in the lee of the mountains, it will serve to cut down on precipitation amounts in these areas. && .SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)... A highly progressive pattern is on tap for this forecast period. The remnants of an occluded front will continue to push into Southwest Alaska. Generally expecting rain along the coast with the possibility of transitioning over to snow for interior locations. As of 12z or 3 AM AKST, the radar at Bethel (PABC) has showers from Russian Mission to Bethel and Eek. The models continue to lift this moisture north-northeastward as the attendant shortwave pushes through the area. All the while, another low will be churning near the Central Aleutians and rapidly move into Southwest. The leading edge of the precipitation shield will be in Bristol Bay Sunday morning. This second system looks to be even warmer. The way the models are depicting the thickness values and the jet placement, it looks as though the actual warm front, not just the occlusion will move across the AKPEN. A few locations can expect a max temp of 40F or better if the models stay on track. This will be a stratiform event. && .SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)... A very active pattern is anticipated this forecast period. The synoptic pattern features troughing from Kamchatka to the North Pacific along with surface lows near the Central Aleutians and southwest at 35N/175W. While one front is currently pushing away from the area and into the Southwest Mainland today, the next storm will rapidly follow in its wake. This second system will have a strong jet driving it and will continue to monitor the wind potential at the surface. Generally expecting the seas to swell. There is a good sub-tropical moisture fetch associated with this second system but the most notable sensible weather high light might actually be the warm temperatures along the Chain. A third system will rear its head near the end of this forecast period. The models have been struggling to get in sync with the exact track of the low but all of them are pinging into a mature cyclone for the Western and Central Bering. && .LONG TERM FORECAST (Days 3 through 7)... A change to a warmer pattern remains in store for the beginning of next week. On Monday, a low pressure system approaches the AK Pen from the North Pacific and then moves into the eastern Bering Sea. This system is accompanied by a lot of warm air, which makes precipitation type a challenge for Monday's forecast. Models have been somewhat inconsistent with the track of this low as well, finally coming into some agreement with this morning's 18Z run. Current forecast keeps a more southerly flow aloft, which indicates a greater chance for precip reaching the lee side of the mountains. This will also prevent a true snow-eater Chinook in Southcentral, but some liquid precipitation is expected with temperatures rising into the 30s at the surface. On Tuesday and Wednesday, a short wave ridge will move through the region, temporarily clearing skies first in the eastern Bering, then over the mainland. This ridge is followed by a series of low pressure systems that move into the central and western Bering. Models forecasts have been very inconsistent on these next systems, so there is little confidence in specific storm tracks and timing past Wednesday. Overall though, an active pattern looks to persist over the Bering and Western AK while high pressure builds over Southcentral leading to quieter weather by the middle of next week. && .AFC WATCHES/WARNINGS/ADVISORIES... PUBLIC...None. MARINE...Gales 120 130 131 139 155 178. && SYNOPSIS AND MODEL DISCUSSION...KH SOUTHCENTRAL ALASKA...SEB SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...PJS LONG TERM...LF
The office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 10, 3:47 PM AKST | Gale Warning | AFC | 12 hr | |
| Feb 10, 3:47 PM AKST | Small Craft Advisory | AFC | 36 hr | |
| Feb 10, 3:55 PM AKST | Small Craft Advisory | AFC | 71 hr | |
| Feb 10, 4:03 PM AKST | Winter Weather Advisory | AFC | 53 hr | |
| Feb 11, 3:00 AM AKST | Gale Warning | AFC | 60 hr | |
| Feb 11, 3:26 AM AKST | Gale Warning | AFC | 7 days | |
| Feb 11, 3:31 AM AKST | Gale Warning | AFC | 60 hr | |
| Feb 11, 3:31 AM AKST | Storm Warning | AFC | 48 hr | |
| Feb 11, 3:36 AM AKST | Gale Warning | AFC | 59 hr | |
| Feb 11, 3:36 AM AKST | Small Craft Advisory | AFC | 24 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.