Alert archive / Alaska / Small Craft Advisories in 2018
Small Craft Advisory 970, NWS Anchorage, AK
NWS Anchorage, AK issued this small craft advisory at Dec 8, 2018, 4:01 PM AKST. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Dec 8, 2018, 4:01 PM AKST (01:01 UTC)
- Expired
- Dec 9, 2018, 4:00 AM AKST
- In force
- 12 hr
- Issued by
- NWS Anchorage, AK
The text
As transmitted.
857 FZAK51 PAFC 090101 CWFAER Coastal Waters Forecast National Weather Service Anchorage Alaska 401 PM AKST Sat Dec 8 2018 Coastal Waters Forecast for the Northern Gulf of Alaska Coast up to 100 nm out including Kodiak Island and Cook Inlet. 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. PKZ197-091430- 401 PM AKST Sat Dec 8 2018 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... A 980 mb low 70 nm southeast of Middleton Island moves inland Sat evening. A front enters the western Gulf Sun morning and reaches the central Gulf Sun evening. The associated 964 mb low moves 90 nm southeast of Middleton Island Mon afternoon. $$ PKZ119-091430- Cape Suckling to Cape Cleare- 401 PM AKST Sat Dec 8 2018 ...GALE WARNING TONIGHT AND SUNDAY NIGHT... .TONIGHT...E of Middleton Island, E wind 40 kt becoming SW 30 kt after midnight. W of Middleton Island, NW wind 20 kt becoming SW 30 kt after midnight. Seas 18 ft. Rain. .SUN...SW wind 25 kt. Seas 13 ft. Rain. .SUN NIGHT...S wind 35 kt diminishing to 20 kt after midnight. Near the coast, SE wind 40 kt. Seas 14 ft. .MON...SE wind 40 kt. Seas 16 ft. .MON NIGHT...S wind 30 kt. Seas 18 ft. .TUE...SW wind 35 kt. Seas 26 ft. .WED...SE wind 40 kt. Seas 23 ft. .THU...SE wind 20 kt. Seas 17 ft. $$ PKZ120-091430- Cape Cleare to Gore Point- 401 PM AKST Sat Dec 8 2018 ...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT... .TONIGHT...W wind 30 kt. Seas 15 ft. .SUN...SW wind 25 kt becoming SE 30 kt in the afternoon. Seas 12 ft. Rain. .SUN NIGHT...S wind 25 kt. Seas 13 ft. .MON...NE wind 30 kt. Seas 12 ft. .MON NIGHT...SW wind 30 kt. Seas 16 ft. .TUE...W wind 40 kt. Seas 22 ft. .WED...E wind 40 kt. Seas 16 ft. .THU...N wind 20 kt. Seas 16 ft. $$ PKZ121-091430- Resurrection Bay- 401 PM AKST Sat Dec 8 2018 .TONIGHT...S wind 10 kt in the evening becoming N 15 kt after midnight. Seas 3 ft. .SUN...N wind 15 kt in the morning becoming variable less than 10 kt. Seas 3 ft. Snow. .SUN NIGHT...S wind 10 kt increasing to 15 kt after midnight. Seas 3 ft. Snow with rain. .MON...N wind 15 kt. Seas 3 ft. .MON NIGHT...N wind 10 kt. Seas 2 ft. .TUE...N wind 20 kt. Seas 4 ft. .WED THROUGH THU...N wind 25 kt. Seas 5 ft. $$ PKZ125-091430- Prince William Sound- 401 PM AKST Sat Dec 8 2018 ...GALE WARNING SUNDAY NIGHT... .TONIGHT...SW wind 15 kt becoming S 25 kt after midnight. Seas 2 ft building to 4 ft after midnight. Rain with snow. .SUN...SW wind 20 kt becoming SE 15 kt in the afternoon. Seas 3 ft. Rain. .SUN NIGHT...SE wind 35 kt. Seas 7 ft. Rain and snow. .MON...E wind 30 kt. Seas 6 ft. .MON NIGHT...SE wind 30 kt. Seas 6 ft. .TUE...SE wind 20 kt. Seas 4 ft. .WED...E wind 25 kt. Seas 6 ft. .THU...E wind 20 kt. Seas 4 ft. $$ PKZ126-091430- Port Valdez- 401 PM AKST Sat Dec 8 2018 .TONIGHT...E wind 15 kt in the evening becoming variable less than 10 kt. Seas 2 ft. Rain and snow. .SUN...Variable wind less than 10 kt. Seas 2 ft. Snow. .SUN NIGHT...E wind 10 kt. Seas 2 ft. Snow. .MON AND MON NIGHT...NE wind 10 kt. Seas 2 ft. .TUE...NE wind 10 kt. Seas 2 ft. .WED...NE wind 15 kt. Seas 3 ft. .THU...NE wind 10 kt. Seas 2 ft. $$ PKZ127-091430- Valdez Narrows- 401 PM AKST Sat Dec 8 2018 .TONIGHT...N wind 10 kt becoming SW 10 kt after midnight. Seas 3 ft. Rain and snow. .SUN...Variable wind less than 10 kt becoming NE 10 kt in the afternoon. Seas 2 ft. Snow. .SUN NIGHT...NE wind 20 kt. Seas 3 ft. Snow. .MON AND MON NIGHT...NE wind 20 kt. Seas 3 ft. .TUE THROUGH THU...NE wind 20 kt. Seas 3 ft. $$ PKZ128-091430- Valdez Arm- 401 PM AKST Sat Dec 8 2018 .TONIGHT...N wind 15 kt becoming S after midnight. Seas 3 ft. Rain and snow. .SUN...SW wind 10 kt. Seas 2 ft. Snow and rain. .SUN NIGHT...NE wind 20 kt. Seas 4 ft. Snow and rain. .MON AND MON NIGHT...NE wind 25 kt. Seas 5 ft. .TUE...NE wind 25 kt. Seas 5 ft. .WED THROUGH THU...NE wind 20 kt. Seas 4 ft. $$ PKZ129-091430- Passage Canal- 401 PM AKST Sat Dec 8 2018 ...SMALL CRAFT ADVISORY SUNDAY NIGHT... .TONIGHT...Variable wind 10 kt becoming W 20 kt after midnight. Gusts to 35 kt after midnight near Whittier. Seas 3 ft. Rain. .SUN...W wind 20 kt becoming E 10 kt in the afternoon. Seas 3 ft. Snow and rain. .SUN NIGHT...E wind 25 kt. Seas 4 ft. Snow and rain. .MON...E wind 15 kt. Seas 2 ft. .MON NIGHT...E wind 20 kt. Seas 3 ft. .TUE...W wind 15 kt. Seas 2 ft. .WED...E wind 10 kt. Seas 2 ft. .THU...Variable wind 15 kt. Seas 2 ft. $$ PKZ130-091430- West of Barren Islands including Kamishak Bay- 401 PM AKST Sat Dec 8 2018 ...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT... .TONIGHT...W wind 30 kt. Seas 9 ft. .SUN...S wind 15 kt becoming E 25 kt in the afternoon. Seas 7 ft. Snow and rain. .SUN NIGHT...NE wind 25 kt. Seas 9 ft. .MON...NE wind 30 kt. Seas 8 ft. .MON NIGHT...NW wind 25 kt. Seas 6 ft. .TUE...W wind 50 kt. Seas 12 ft. .WED THROUGH THU...NW wind 35 kt. Seas 14 ft. $$ PKZ131-091430- Barren Islands East- 401 PM AKST Sat Dec 8 2018 ...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT... .TONIGHT...W wind 30 kt. Seas 10 ft. .SUN...SW wind 20 kt becoming SE 30 kt in the afternoon. Seas 11 ft. Rain with snow. .SUN NIGHT...SW wind 30 kt becoming S 20 kt after midnight. Seas 14 ft. .MON...NE wind 25 kt. Seas 10 ft. .MON NIGHT...W wind 30 kt. Seas 14 ft. .TUE...W wind 45 kt. Seas 18 ft. .WED...NE wind 40 kt. Seas 18 ft. .THU...NW wind 30 kt. Seas 18 ft. $$ PKZ132-091430- Marmot Island to Sitkinak- 401 PM AKST Sat Dec 8 2018 ...GALE WARNING SUNDAY... .TONIGHT...W wind 25 kt. Seas 10 ft. .SUN...S wind 35 kt. Seas 15 ft. Rain and snow. .SUN NIGHT...SW wind 30 kt becoming S 20 kt after midnight. Seas 15 ft. .MON...SW wind 30 kt. Seas 13 ft. .MON NIGHT...W wind 30 kt. Seas 18 ft. .TUE...W wind 40 kt. Seas 24 ft. .WED...NW wind 40 kt. Seas 17 ft. .THU...NW wind 35 kt. Seas 17 ft. $$ PKZ136-091430- Chiniak Bay- 401 PM AKST Sat Dec 8 2018 ...SMALL CRAFT ADVISORY SUNDAY... .TONIGHT...W wind 20 kt. Seas 3 ft. .SUN...S wind 25 kt. Seas 4 ft building to 8 ft in the afternoon. Snow. .SUN NIGHT...SW wind 20 kt becoming S 10 kt after midnight. Seas 3 ft. .MON...NE wind 15 kt. Seas 4 ft. .MON NIGHT...W wind 20 kt. Seas 3 ft. .TUE...W wind 30 kt. Seas 5 ft. .WED...N wind 30 kt. Seas 7 ft. .THU...NW wind 25 kt. Seas 4 ft. $$ PKZ137-091430- Marmot Bay- 401 PM AKST Sat Dec 8 2018 ...SMALL CRAFT ADVISORY SUNDAY... .TONIGHT...W wind 20 kt. Seas 4 ft. .SUN...S wind 25 kt. Seas 4 ft building to 10 ft in the afternoon. Snow. .SUN NIGHT...SW wind 20 kt becoming S 10 kt after midnight. Seas 4 ft. .MON...NE wind 15 kt. Seas 3 ft. .MON NIGHT...W wind 20 kt. Seas 4 ft. .TUE...W wind 30 kt. Seas 7 ft. .WED...N wind 30 kt. Seas 11 ft. .THU...W wind 25 kt. Seas 4 ft. $$ PKZ138-091430- Shelikof Strait- 401 PM AKST Sat Dec 8 2018 ...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT... .TONIGHT...W wind 25 kt. Seas 5 ft. .SUN...SE wind 20 kt becoming S 30 kt in the afternoon. Seas 5 ft building to 11 ft in the afternoon. Snow. .SUN NIGHT...SW wind 30 kt becoming S 15 kt after midnight. Seas 11 ft subsiding to 5 ft after midnight. .MON...NE wind 20 kt. Seas 5 ft. .MON NIGHT...W wind 30 kt. Seas 6 ft. .TUE...W wind 35 kt. Seas 9 ft. .WED...N wind 35 kt. Seas 13 ft. .THU...W wind 30 kt. Seas 9 ft. $$ PKZ139-091430- Cook Inlet Kalgin Island to Point Bede- 401 PM AKST Sat Dec 8 2018 ...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT... .TONIGHT...W wind 30 kt. Seas 8 ft. .SUN...SW wind 20 kt becoming NE 25 kt in the afternoon. Seas 4 ft building to 7 ft in the afternoon. Snow. .SUN NIGHT...N wind 30 kt becoming NE 20 kt after midnight. Seas 9 ft. Snow and rain. .MON...N wind 30 kt. Seas 8 ft. .MON NIGHT...NW wind 20 kt. Seas 5 ft. .TUE...W wind 30 kt. Seas 8 ft. .WED...N wind 35 kt. Seas 13 ft. .THU...NW wind 20 kt. Seas 7 ft. $$ PKZ140-091430- Cook Inlet North of Kalgin Island- 401 PM AKST Sat Dec 8 2018 ...SMALL CRAFT ADVISORY SUNDAY NIGHT... .TONIGHT...SW wind 20 kt. Seas 5 ft. .SUN...SW wind 20 kt becoming NE 15 kt in the afternoon. Seas 4 ft. .SUN NIGHT...N wind 25 kt. Seas 7 ft. Freezing spray. .MON...N wind 25 kt. Seas 6 ft. .MON NIGHT...N wind 20 kt. Seas 5 ft. .TUE...W wind 15 kt. Seas 4 ft. .WED...N wind 25 kt. Seas 10 ft. .THU...N wind 15 kt. Seas 5 ft. $$ PKZ141-091430- Kachemak Bay- 401 PM AKST Sat Dec 8 2018 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...SW wind 30 kt. Seas 9 ft. .SUN...SW wind 15 kt becoming E 20 kt in the afternoon. Seas 4 ft. Snow showers. .SUN NIGHT...E wind 15 kt. Seas 2 ft. Rain. .MON...NE wind 20 kt. Seas 3 ft. .MON NIGHT...NW wind 15 kt. Seas 2 ft. .TUE...W wind 20 kt. Seas 6 ft. .WED...N wind 25 kt. Seas 4 ft. .THU...NW wind 15 kt. Seas 2 ft. $$
1 follow-up statement
599 FZAK51 PAFC 091300 CWFAER Coastal Waters Forecast National Weather Service Anchorage Alaska 400 AM AKST Sun Dec 9 2018 Coastal Waters Forecast for the Northern Gulf of Alaska Coast up to 100 nm out including Kodiak Island and Cook Inlet. 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. PKZ197-100215- 400 AM AKST Sun Dec 9 2018 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... A front enters the Southwestern Gulf Sun morning and moves onshore of the north Gulf coast Sun night. A second front enters the western Gulf Mon morning and moves to the north Gulf coast by Tue morning. A 967 mb low 80 nm East of Chignik Mon afternoon moves to 90 nm south of Seward at 970 mb for Tue morning. $$ PKZ119-100215- Cape Suckling to Cape Cleare- 400 AM AKST Sun Dec 9 2018 ...GALE WARNING TONIGHT... .TODAY...SW wind 25 kt becoming S 15 kt in the afternoon. Seas 12 ft. Rain and snow showers. .TONIGHT...SE wind 35 kt becoming S 20 kt after midnight. Near the coast, SE wind 25 kt becoming E 40 kt around midnight. Seas 13 ft. Rain. .MON...S wind 25 kt. Seas 13 ft. Rain. .MON NIGHT...S wind 30 kt. Seas 13 ft. .TUE...SW wind 30 kt. Seas 20 ft. .WED...SE wind 35 kt. Seas 19 ft. .THU...SE wind 20 kt. Seas 17 ft. $$ PKZ120-100215- Cape Cleare to Gore Point- 400 AM AKST Sun Dec 9 2018 ...GALE WARNING TONIGHT... .TODAY...SW wind 25 kt diminishing to 15 kt midday, then becoming SE 25 kt late. Seas 12 ft. Rain and snow showers. .TONIGHT...SE wind 35 kt becoming SW 20 kt after midnight. Seas 13 ft. .MON...E wind 20 kt. Seas 12 ft. Rain. .MON NIGHT...SW wind 30 kt. Seas 12 ft. .TUE...W wind 35 kt. Seas 17 ft. .WED...E wind 30 kt. Seas 16 ft. .THU...NW wind 25 kt. Seas 16 ft. $$ PKZ121-100215- Resurrection Bay- 400 AM AKST Sun Dec 9 2018 .TODAY...Variable wind 10 kt. Seas 2 ft. .TONIGHT...N wind 10 kt becoming S 15 kt toward morning. Seas 2 ft. Snow. .MON...Variable wind less than 10 kt becoming N 15 kt late. Seas 2 ft. Snow. .MON NIGHT AND TUE...N wind 15 kt. Seas 3 ft. .WED...N wind 25 kt. Seas 5 ft. .THU...N wind 20 kt. Seas 4 ft. $$ PKZ125-100215- Prince William Sound- 400 AM AKST Sun Dec 9 2018 ...GALE WARNING TONIGHT... .TODAY...SW wind 20 kt becoming Variable 10 kt in the afternoon. Seas 4 ft subsiding to 2 ft in the afternoon. Snow showers. .TONIGHT...E wind increasing to 35 kt. Seas 2 ft building to 7 ft after midnight. Snow and rain. .MON...E wind 20 kt. Seas 4 ft. Rain. .MON NIGHT...SE wind 20 kt. Seas 4 ft. .TUE...E wind 15 kt. Seas 3 ft. .WED...E wind 20 kt. Seas 4 ft. .THU...E wind 15 kt. Seas 3 ft. $$ PKZ126-100215- Port Valdez- 400 AM AKST Sun Dec 9 2018 .TODAY...Variable wind less than 10 kt. Seas 1 ft. Snow and rain showers. .TONIGHT...Variable wind less than 10 kt becoming E 10 kt after midnight. Seas 2 ft. Snow. .MON...Variable wind less than 10 kt becoming NE 10 kt in the afternoon. Seas 2 ft. Snow with rain. .MON NIGHT...E wind 10 kt. Seas 2 ft. .TUE...NE wind 10 kt. Seas 2 ft. .WED...NE wind 15 kt. Seas 3 ft. .THU...NE wind 10 kt. Seas 2 ft. $$ PKZ127-100215- Valdez Narrows- 400 AM AKST Sun Dec 9 2018 .TODAY...Variable wind 10 kt becoming NE in the afternoon. Seas 2 ft. Snow showers. .TONIGHT...NE wind increasing to 20 kt. Seas 3 ft. Snow. .MON...NE wind 20 kt. Seas 3 ft. Snow with rain. .MON NIGHT...NE wind 20 kt. Seas 3 ft. .TUE...NE wind 15 kt. Seas 3 ft. .WED...NE wind 20 kt. Seas 3 ft. .THU...NE wind 15 kt. Seas 3 ft. $$ PKZ128-100215- Valdez Arm- 400 AM AKST Sun Dec 9 2018 .TODAY...SW wind 10 kt in the morning becoming variable less than 10 kt. Seas 2 ft. .TONIGHT...NE wind increasing to 20 kt. Seas building to 4 ft. Snow and rain. .MON...NE wind 20 kt. Seas 4 ft. Rain. .MON NIGHT...NE wind 15 kt. Seas 3 ft. .TUE...NE wind 15 kt. Seas 3 ft. .WED...NE wind 20 kt. Seas 4 ft. .THU...NE wind 15 kt. Seas 3 ft. $$ PKZ129-100215- Passage Canal- 400 AM AKST Sun Dec 9 2018 .TODAY...W wind 10 kt with gusts to 20 kt in the morning becoming variable less than 10 kt. Seas 2 ft. Snow showers. .TONIGHT...E wind 10 kt increasing to 15 kt after midnight. Seas 2 ft. Snow. .MON...E wind 10 kt. Seas 2 ft. Rain and snow. .MON NIGHT...E wind 15 kt. Seas 2 ft. .TUE THROUGH WED...E wind 10 kt. Seas 2 ft. .THU...E wind 15 kt. Seas 2 ft. $$ PKZ130-100215- West of Barren Islands including Kamishak Bay- 400 AM AKST Sun Dec 9 2018 ...GALE WARNING TONIGHT... .TODAY...SW wind 25 kt becoming S 10 kt by late morning, then increasing to E 30 kt during the afternoon. Seas 7 ft. Snow and rain. .TONIGHT...NE wind 35 kt diminishing to 25 kt after midnight. Seas 13 ft subsiding to 8 ft after midnight. Rain. .MON...NE wind 30 kt. Seas 12 ft. .MON NIGHT...NW wind 25 kt. Seas 9 ft. .TUE...W wind 45 kt. Seas 16 ft. .WED THROUGH THU...NW wind 30 kt. Seas 14 ft. $$ PKZ131-100215- Barren Islands East- 400 AM AKST Sun Dec 9 2018 ...GALE WARNING THROUGH TONIGHT... .TODAY...SW wind 20 kt becoming SE 35 kt in the afternoon. Seas 12 ft. Rain. .TONIGHT...SW wind 35 kt diminishing to 20 kt after midnight. Seas 14 ft. .MON...SE wind 20 kt becoming SW in the afternoon. Seas 9 ft. .MON NIGHT...W wind 25 kt. Seas 11 ft. .TUE...W wind 40 kt. Seas 17 ft. .WED...NE wind 30 kt. Seas 18 ft. .THU...NW wind 30 kt. Seas 18 ft. $$ PKZ132-100215- Marmot Island to Sitkinak- 400 AM AKST Sun Dec 9 2018 ...GALE WARNING THROUGH TONIGHT... .TODAY...S wind 25 kt becoming SW 40 kt in the afternoon. Seas 10 ft building to 16 ft in the afternoon. Rain and snow. .TONIGHT...SW wind 35 kt becoming S 20 kt after midnight. Seas 15 ft. .MON...S wind 30 kt. N of Dangerous Cape, SE wind 15 kt becoming SW 30 kt in the afternoon. Seas 13 ft. .MON NIGHT...W wind 30 kt. Seas 13 ft. .TUE...W wind 45 kt. Seas 23 ft. .WED...NW wind 35 kt. Seas 17 ft. .THU...W wind 35 kt. Seas 17 ft. $$ PKZ136-100215- Chiniak Bay- 400 AM AKST Sun Dec 9 2018 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...SW wind 10 kt becoming SE and increasing to 30 kt by afternoon. Seas 2 ft building to 8 ft in the afternoon. Rain and snow. .TONIGHT...SW wind 25 kt becoming S 15 kt after midnight. Seas 4 ft subsiding to 2 ft after midnight. .MON...SE wind 15 kt becoming SW in the afternoon. Seas 4 ft subsiding to 2 ft in the afternoon. Rain. .MON NIGHT...SW wind 15 kt. Seas 2 ft. .TUE...W wind 25 kt. Seas 4 ft. .WED...N wind 25 kt. Seas 5 ft. .THU...NW wind 25 kt. Seas 4 ft. $$ PKZ137-100215- Marmot Bay- 400 AM AKST Sun Dec 9 2018 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...SW wind 15 kt becoming SE 30 kt in the afternoon. Seas 3 ft building to 10 ft in the afternoon. Rain and snow. .TONIGHT...SW wind 25 kt becoming S 10 kt after midnight. Seas 6 ft subsiding to 2 ft after midnight. .MON...E wind 15 kt becoming SW in the afternoon. Seas 4 ft subsiding to 2 ft in the afternoon. Rain. .MON NIGHT...W wind 15 kt. Seas 3 ft. .TUE...W wind 25 kt. Seas 6 ft. .WED...N wind 25 kt. Seas 7 ft. .THU...W wind 25 kt. Seas 4 ft. $$ PKZ138-100215- Shelikof Strait- 400 AM AKST Sun Dec 9 2018 ...GALE WARNING TONIGHT... .TODAY...SW wind 25 kt becoming NE 30 kt in the afternoon. Seas 7 ft. Snow and rain. .TONIGHT...SW wind 35 kt becoming S 20 kt after midnight. Seas 12 ft subsiding to 6 ft after midnight. .MON...E wind 15 kt becoming S in the afternoon. Seas 4 ft. .MON NIGHT...W wind 25 kt. Seas 4 ft. .TUE...W wind 35 kt. Seas 8 ft. .WED...N wind 25 kt. Seas 13 ft. .THU...NW wind 25 kt. Seas 9 ft. $$ PKZ139-100215- Cook Inlet Kalgin Island to Point Bede- 400 AM AKST Sun Dec 9 2018 ...GALE WARNING TONIGHT... .TODAY...SW wind 25 kt diminishing to 15 kt by late morning, then becoming NE 20 kt in the afternoon. Seas 9 ft subsiding to 5 ft by afternoon. .TONIGHT...NE wind 35 kt diminishing to 25 kt after midnight. Seas 12 ft. Freezing spray. .MON...N wind 30 kt. Seas 10 ft. .MON NIGHT...NW wind 25 kt. Seas 8 ft. .TUE...NW wind 20 kt. Seas 5 ft. .WED...N wind 25 kt. Seas 13 ft. .THU...N wind 20 kt. Seas 7 ft. $$ PKZ140-100215- Cook Inlet North of Kalgin Island- 400 AM AKST Sun Dec 9 2018 ...SMALL CRAFT ADVISORY TONIGHT AND MONDAY... .TODAY...S wind 20 kt becoming Variable 10 kt by late morning. Seas 5 ft subsiding. .TONIGHT...NE wind increasing to 30 kt. Seas 5 ft building to 9 ft after midnight. Freezing spray. .MON...N wind 15 kt increasing to 25 kt in the afternoon. Seas 4 ft building to 7 ft in the afternoon. Freezing spray. .MON NIGHT...N wind 20 kt. Seas 5 ft. .TUE...N wind 15 kt. Seas 2 ft. .WED...N wind 20 kt. Seas 10 ft. .THU...N wind 15 kt. Seas 5 ft. $$ PKZ141-100215- Kachemak Bay- 400 AM AKST Sun Dec 9 2018 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...SW wind 25 kt becoming S 10 kt by late morning, then becoming E 20 kt in the late afternoon. Seas 8 ft subsiding to 3 ft in the afternoon. .TONIGHT...E wind 25 kt becoming S 15 kt after midnight. Seas 4 ft subsiding to 2 ft after midnight. Snow and rain. .MON...NE wind 10 kt increasing to 15 kt in the afternoon. Seas 2 ft. .MON NIGHT...NW wind 15 kt. Seas 2 ft. .TUE...W wind 15 kt. Seas 4 ft. .WED...N wind 20 kt. Seas 3 ft. .THU...NW wind 15 kt. Seas 2 ft. $$
What forecasters said that day
The local office's own words before this small craft advisory 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 small craft advisory went out at Dec 8, 8:50 AM AKST, 7 hours 11 minutes earlier.
Area forecast discussion, Dec 8, 8:50 AM AKST, 7 hours 11 minutes before
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 850 AM AKST Sat Dec 8 2018 .ANALYSIS AND UPPER LEVELS... A deep upper level trough extends south across the Eastern Bering/Aleutians well into the Pacific Ocean. This trough is supporting a strong vertically stacked 964 mb surface low centered over the North Gulf Coast moving north into the Prince William Sound. Satellite imagery shows a well defined cyclonic system with dry air wrapping into the low center, a sign of previous intensification. Over the past hour or so, the stream of dry air has been cut off as the low begins to fill and weaken. A wide swath of precipitation is seen on radar moving across the Gulf Coast. Strong winds were seen through channeled terrain and have led to strong cross barrier flow and downsloping on the lee of the Chugach Mountains. Recent scatterometer passes show a wide swath of gale force winds over the Northern Gulf of Alaska with areas of storm force winds showing up near the coast between Cordova and Yakutat, indicative of a strong coastal barrier jet. The next system is beginning to show up on satellite, currently near 50 N over the N Pacific moving north towards the Gulf of Alaska. Further west, dry northerly flow can be seen over SW mainland and the Central/Eastern Bering Sea, with a wide swath of open cell cumulus seen pushing south across the Bering. High clouds can be seen well ahead of the next low moving into the Western Bering/Aleutians. && .MODEL DISCUSSION... Models agreement has improved regarding the next low rapidly moving north into the Gulf. The low track is fairly consistent between models, with the center coming right through the gut of Prince William Sound sometime tonight. Models are still struggling with timing though, with the EC the fastest solution and the NAM/Canadian the slowest, with the GFS in between. Models are also struggling with some of the finer details as the system moves through, especially with precipitation type and location over the Anchorage/Mat-Su areas tonight. A deformation zone is expected to form around the area, but the exact location is uncertain. The GFS brings snow over all of Anchorage while the some of the Hi-Res models keep the band just to the east. Obviously, these small differences will have significant implications to the short-term forecast today. Decided to go with the NAM solution which takes more of a middle ground approach with better run-to-run consistency. && .AVIATION... PANC...Conditions over the terminal should start off VFR with Anchorage staying in the downslope hole. As the low lifts north out of the area, precipitation will move up the Cook Inlet and over the terminal later this morning. Temperatures should hold up keeping precipitation rain or mixed, but with colder air advecting from the west, should change over to all snow later this afternoon. This should drop the flight category to IFR, though if slower to change over expect cig/vis to remain MVFR. Tonight, snow is expected to form as the next low pulls north, though there is model disagreement as to how far west the heaviest snow will be, with some model solutions keeping the terminal west of the main snow band. && .SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2/Today through Sunday night)... A powerful storm force low over Prince William Sound early this morning will head quickly inland, with an approximate track to the far western Copper River Basin. Strong pressure rises behind the low will contribute to strong gusty winds spreading from eastern Prince William Sound early this morning across the Copper River Basin during the morning hours. As is typical some of the strongest winds will be along and near the Copper River. Areas to the west of Prince William Sound will see much smaller pressure rises, with most of the increase in winds felt on mountain tops. Temperatures will rapidly rise as winds arrive, especially across the Copper River Basin where there may be a 15 to 20 degree rise as the shallow cold air is scoured out. Precipitation will spread inland with the low. With many areas right near the threshold between rain and snow there will be quite the mixed bag of precipitation types out there. Precipitation type will tend to vary over small distances depending on intensity of precipitation and whether the winds are blowing (producing warm temps). This is especially true in Anchorage and the Mat Valley, as a bit of wind is expected to move off the Inlet into west Anchorage and out of the Knik River Valley into Palmer. This may keep these areas warm enough for all rain while nearby areas with little or no wind remain cold enough for snow or a mix. Meanwhile, a series of troughs moving in from the Bering are advecting colder air into the western Gulf. As the storm heads inland this afternoon this cold air will begin to work its way up Cook Inlet and the Kenai Peninsula toward Anchorage which could be just enough to change any remaining precipitation to all snow during the mid to late afternoon hours. Another weaker storm system moving up from the Northeast Pacific this morning will track rapidly to Prince William Sound this evening. With such little space between storm systems expect multiple rapid changes in wind speed and direction across the Gulf of Alaska and Prince William Sound marine areas. As the low tracks northward today a couple troughs will phase (or almost phase) and interact across Southwest Alaska. The speed of this trough will determine where the surface low heads inland - and there is quite a bit of uncertainty in the ultimate track at the moment. A track toward western Prince William Sound would lead to a deformation band over Anchorage and the Mat-Su, bringing accumulating snow tonight. A further east track means this band would set up further north and east, so Anchorage (or portions of) would see no snow at all. Right now the forecast calls for some light snow accumulation across all of Anchorage and the Mat-Su, with highest amounts in the Mat-Su. In any case, cold air will continue to advect across all of Southcentral tonight into Sunday morning gradually changing precipitation to all snow, even along the coast. The active weather doesn't end there. Another trough and surface frontal system will move into the western Gulf Sunday then spread northward toward Southcentral Sunday night. It's a bit soon to nail down the details of weather with this. However, the one thing that can be said with confidence is that an arctic air mass will be in place when this arrives and there will be only marginally warmer air accompanying this system. Thus, precipitation looks like it will mainly be in the form of snow. && .SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: Today through Monday)... The snow impacting far eastern portions of Southwest Alaska this morning is weakening and shifting further east into the Alaska Range. Thus, the Winter Weather Advisories are both cancelled. A small area of low pressure over Norton Sound continues to keep gusty northerly winds ongoing along the coast. As the low moves north and weakens, those winds will diminish tonight. A small area of surface ridging will help keep the area dry, with only an isolated snow shower or two across the Kuskokwim Delta from that low today. Otherwise, the cold air mass will continue to build into the area keeping temperatures seasonably cold with highs in the 10s and 20s and lows dipping to around zero in the colder spots of the Lower Kuskokwim Valley that clear out tonight. On Sunday morning, a "warm" front and associated area of low pressure will bring the next round of wintry precipitation to the area. The front now appears to be fairly fast-moving, and will quickly weaken as it moves inland during the day Sunday. As such, the worst conditions are expected to be from King Salmon west through Dillingham and the Western Capes during the day Sunday. In these areas, a broad 1 to 3 inches of snow are expected, with isolated amounts of 4 and 5 inches possible on the eastern slopes of the Kuskokwim Mountains due to the easterly winds. The front will have some wind to it (15 to 30 mph), especially at the coast, so areas of blowing snow are possible that may briefly reduce visibilities. The air mass initially with the front is only marginally warmer, and as such, only areas at the immediate coast and south of King Salmon have much chance of seeing anything other than snow with it. The low associated with the front is expected to approach Cape Newenham Sunday afternoon and stall out around that area into Monday. Weak disturbances will track northward through Bristol Bay and the Lower Kuskokwim Valley Sunday night and Monday. None of these features is expected to be particularly strong, so this weather pattern is likely to feature off-and-on snow showers for most. However, some of the models are hinting at deformation banding potentially developing Monday morning somewhere over Bristol Bay and the Lower Kuskokwim Valley, but those features are small and very difficult to pin down location-wise much in advance. && .SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3: Today through Monday)... A few changes to the forecast were made across the Bering this morning, but nothing amounting to large changes. The primary hazard continues to be an area of low pressure tracking eastward into the Western Bering and Aleutians this afternoon. South of the low center, the low and its associated core of stronger westerly winds will be moving over the same area of waves as the waves also track westward with the low. As such, dynamic fetch is likely to produce some very high seas primarily on the Pacific side of the Western Aleutians starting this afternoon, peaking tonight, then slowly subsiding during the day Sunday. The models now have the low slowing its forward motion and maintaining its intensity during this time instead of continuing to strengthen. As such, the wave forecast has been reduced somewhat since now all the conditions meeting the criteria needed to sustain fully risen seas and dynamic fetch are slightly diminished. However, waves of 30 to 40 feet are still expected, and mariners are still urged to avoid the area. Waves on the Bering side will still be elevated in the 20 to 30 foot range, but the islands will help protect that side from seeing the highest waves. The low is expected to elongate and develop multiple centers further east during the day Sunday, following along a steadily progressing leading front across the Southern Bering and Aleutians. With decent cold air present, snow will mix with rain with this feature along the Aleutians, with snow expected for the Pribilofs tonight. Temperatures should be just below freezing, making for a wet snow there, which should negate the blowing snow threat a bit, though heavy wet snow falling in 30 mph winds will still make for deteriorated conditions overnight. All the low centers will shift eastward Sunday night into Monday, and move into the Gulf by Monday night. Behind the low, more cold air and northerly winds will redevelop over all of the eastern half of the Bering on Monday, as the winds relax over the western Bering by Monday afternoon. && .LONG TERM FORECAST (Days 4 through 7)... (Tuesday through Friday) The active pattern continues this afternoon's weather theme, as model continuity continues to be moderate to good as a series of storms affect the region. Our first contender in the extended is a rapidly deepening storm (into the lower 950s mb range) lifting north into the Gulf. This system will pull some tropical moisture into our neck of the woods, with current forecast values being some 300 to 400 percent above normal. At this time, the heaviest precipitation looks to be along the coastal locations along the Gulf, but, some fairly respectable precipitation totals looks to make it into much of Southcentral as well. Additionally, one notable change today is all models have trended cooler with some wintry type precipitation a legitimate possibility. As is typical with these deep systems, strong winds for the upper elevations and marine waters are extremely likely, with sustained storm force winds a good bet. Our attention then turns to another storm, with this one passing south of the Aleutians on Tuesday, moving into the Gulf on Wednesday. Most of the heavy precipitation with this 950s mb low looks to stay south of the chain, but some storm force winds are possible for the southern coastal waters. By the time it enters the Gulf it will have weakened some, as current forecasts have it in the lower 960s with a further south track compared to yesterday. These two things are noteworthy, because the tropical moisture will still make its way into Southcentral, but the warm advection now looks to be less aggressive, with the majority of the precipitation looking to be snow (hope I didn't just jinx that), but for you snow lovers this could be one of our best potentials this year IF...the current forecast holds. It's still several days out but the trend towards this has been consistent the last several model runs. Looking just beyond the extended forecast range, it looks like more of the same is on tap for us...so stay tuned! && .AFC WATCHES/WARNINGS/ADVISORIES... PUBLIC...None. MARINE...Storms 177. Gales 119 120 125 128 130 131 132 138 150 155 165 170 172 174 175 176 178 351 352 411 412 413. && SYNOPSIS AND MODEL DISCUSSION...KVP SOUTHCENTRAL ALASKA...SB SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...JW LONG TERM...PD
The office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 8, 3:55 PM AKST | Gale Warning | AFC | 24 hr | |
| Dec 9, 4:00 AM AKST | Gale Warning | AFC | 4 days | |
| Dec 9, 4:11 AM AKST | Gale Warning | AFC | 60 hr | |
| Dec 9, 4:11 AM AKST | Small Craft Advisory | AFC | 8 days | |
| Dec 9, 4:11 AM AKST | Heavy Freezing Spray Warning | AFC | 35 hr | |
| Dec 9, 9:11 AM AKST | Gale Warning | AFC | 19 hr |
Nearby
Small Craft Advisories in Alaska, 2018Every small craft advisory in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.