Alert archive / Alaska / High Wind Warnings in 2025
High Wind Warning 19, NWS Anchorage, AK
NWS Anchorage, AK issued this high wind warning at Dec 19, 2025, 9:27 AM AKST for Chugach Census Area, Matanuska-Susitna Borough, Alaska. It took effect at Dec 20, 2025, 6:00 PM AKST. It was in force for 24 hr. 8 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 19, 2025, 9:27 AM AKST (18:27 UTC)
- In effect from
- Dec 20, 2025, 6:00 PM AKST
- Expired
- Dec 21, 2025, 6:00 PM AKST
- In force
- 24 hr
- Issued by
- NWS Anchorage, AK
Counties Chugach Census Area, AK, Matanuska-Susitna Borough, AK
The radar
The Kenai radar (PAHG), 209 km from the middle of the area, began a volume at 18:27 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 20, 6:25 PM AKST | NON-TSTM WND GST 63 | Valdez, AK | Valdez airport recorded a sustained wind of 43 mph with a gust to 63 mph at 6:25pm on 12/20. Winds generally became elevated around 11:30am 12/20, and remained elevated through 2:45pm 12/21. |
| Dec 20, 10:45 PM AKST | NON-TSTM WND GST 63 | Wasilla, AK | EW9414 Wasilla recorded a sustained wind of 30 mph with a gust to 63 mph at 10:45PM 12/20. The station consistently reported wind gusts of at least 50 mph from this observation to 4:30AM 12/21. |
| Dec 21, 4:20 AM AKST | NON-TSTM WND GST 68 | Palmer, AK | Weather station at Parks Glenn Highway Interchange. Clocked a sustained wind of 42 mph with a gust of 68 mph at 4:20AM 12/21. Winds consistently gusted to at least 50 mph from 8:40PM 12/20 to 9:10AM 12/21. |
| Dec 21, 5:00 AM AKST | NON-TSTM WND GST 71 | Palmer, AK | PAAQ recorded/measured a sustained wind of 47 mph and a gust to 71 mph at 5AM 12/21. |
| Dec 21, 5:17 AM AKST | NON-TSTM WND GST 78 | Palmer, AK | Corrects previous non-tstm wnd gst report from Palmer. PAAQ recorded/measured a sustained wind of 47 mph and a gust to 78 mph at 5:17AM 12/21. Starting at 8:35PM 12/20, PAAQ consistently gusted to at least 50 mph through 5:20pm 12/21. |
| Dec 21, 5:20 AM AKST | NON-TSTM WND GST 65 | Palmer, AK | Weather station PTFA2 at Parks Glenn Highway Interchange. Recorded a sustained wind of 40 mph and a gust to 65 mph at 5:20AM 12/21. Winds consistently gusted to at least 50 mph from 4:50PM 12/20 through 6:50AM 12/21. |
| Dec 21, 8:02 AM AKST | NON-TSTM WND GST 60 | Valdez, AK | NDBCVDXA2 recorded a sustained wind of 26 mph with a gust to 60 mph at 8:02am 12/21. Elevated winds began as early as 5AM 12/21, remaining elevated through 4PM 12/21, with gusts generally anywhere from 20 to 50 mph. |
| Dec 21, 2:20 PM AKST | NON-TSTM WND GST 73 | Thompson Pass, AK | Thompson Pass FAA recorded a SUSTAINED wind of 73 mph at 2:20pm 12/21. Winds consistently stayed elevated from 6:50pm 12/20 to 5:20pm 12/21. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Anchorage Iap/Pt. Campbe, (PANC), launched 12:00Z, 6.5 hours before the alert went out and 121 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1783 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
687 WWAK71 PAFC 191827 NPWAER URGENT - WEATHER MESSAGE National Weather Service Anchorage AK 927 AM AKST Fri Dec 19 2025 AKZ731-201515- /O.UPG.PAFC.HW.A.0010.251220T2100Z-251222T0000Z/ /O.NEW.PAFC.HW.W.0019.251221T0300Z-251221T2100Z/ Valdez- Including the cities of Valdez 927 AM AKST Fri Dec 19 2025 ...HIGH WIND WARNING IN EFFECT FROM 6 PM SATURDAY TO NOON AKST SUNDAY... * WHAT...Northeast winds 25 to 45 mph with gusts from 60 to 70 mph expected. * WHERE...Valdez. * WHEN...From 6 PM Saturday to noon AKST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. * ADDITIONAL DETAILS...The window for strongest winds is Saturday night through early Sunday morning. Winds will slowly diminish through Sunday but will remain gusty. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ AKZ732-201515- /O.UPG.PAFC.HW.A.0010.251220T2100Z-251222T0600Z/ /O.NEW.PAFC.HW.W.0019.251221T0300Z-251222T0300Z/ Thompson Pass- Including the cities of Thompson Pass 927 AM AKST Fri Dec 19 2025 ...HIGH WIND WARNING IN EFFECT FROM 6 PM SATURDAY TO 6 PM AKST SUNDAY... * WHAT...Northeast winds 40 to 55 mph with gusts up to 80 mph expected. * WHERE...Thompson Pass. * WHEN...From 6 PM Saturday to 6 PM AKST Sunday. * IMPACTS...High winds could move loose debris, damage property, and cause power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The window for strongest winds is Saturday night through Sunday morning. Winds will diminish through the day Sunday but will remain gusty at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ AKZ711-201515- /O.UPG.PAFC.HW.A.0010.251221T0000Z-251222T0000Z/ /O.NEW.PAFC.HW.W.0019.251221T0300Z-251221T2100Z/ Lower Matanuska Valley- Including the cities of Big Lake, Wasilla, and Palmer 927 AM AKST Fri Dec 19 2025 ...HIGH WIND WARNING IN EFFECT FROM 6 PM SATURDAY TO NOON AKST SUNDAY... * WHAT...Northeast winds 30 to 40 mph with gusts from 60 to 70 mph expected. * WHERE...Lower Matanuska Valley. * WHEN...From 6 PM Saturday to noon AKST Sunday. * IMPACTS...High winds could move loose debris, damage property, and cause power outages. Travel could be difficult, especially for high profile vehicles. Increased fire weather concerns due to dry conditions and strong winds. * ADDITIONAL DETAILS...The window for strongest winds is Saturday evening through early Sunday morning. Winds will diminish through the day Sunday but will remain gusty at times. Dry conditions and strong winds will lead to increased fire weather concerns. Avoid outdoor burning and any activity that will produce a spark. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ DAN
6 follow-up statements
673 WWAK71 PAFC 192247 NPWAER URGENT - WEATHER MESSAGE National Weather Service Anchorage AK 147 PM AKST Fri Dec 19 2025 AKZ711-201515- /O.CON.PAFC.HW.W.0019.251221T0300Z-251221T2100Z/ Lower Matanuska Valley- Including the cities of Big Lake, Wasilla, and Palmer 147 PM AKST Fri Dec 19 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM SATURDAY TO NOON AKST SUNDAY... * WHAT...Northeast winds 30 to 40 mph with gusts from 60 to 70 mph expected. * WHERE...Lower Matanuska Valley. * WHEN...From 6 PM Saturday to noon AKST Sunday. * IMPACTS...High winds could move loose debris, damage property, and cause power outages. Travel could be difficult, especially for high profile vehicles. Increased fire weather concerns due to dry conditions and strong winds. * ADDITIONAL DETAILS...The window for strongest winds is Saturday evening through early Sunday morning. Winds will diminish through the day Sunday but will remain gusty at times. Dry conditions and strong winds will lead to increased fire weather concerns. Avoid outdoor burning and any activity that will produce a spark. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ AKZ731-201515- /O.CON.PAFC.HW.W.0019.251221T0300Z-251221T2100Z/ Valdez- Including the cities of Valdez 147 PM AKST Fri Dec 19 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM SATURDAY TO NOON AKST SUNDAY... * WHAT...Northeast winds 25 to 45 mph with gusts from 60 to 70 mph expected. * WHERE...Valdez. * WHEN...From 6 PM Saturday to noon AKST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. * ADDITIONAL DETAILS...The window for strongest winds is Saturday night through early Sunday morning. Winds will slowly diminish through Sunday but will remain gusty. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ AKZ732-201515- /O.CON.PAFC.HW.W.0019.251221T0300Z-251222T0300Z/ Thompson Pass- Including the cities of Thompson Pass 147 PM AKST Fri Dec 19 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM SATURDAY TO 6 PM AKST SUNDAY... * WHAT...Northeast winds 40 to 55 mph with gusts up to 80 mph expected. * WHERE...Thompson Pass. * WHEN...From 6 PM Saturday to 6 PM AKST Sunday. * IMPACTS...High winds could move loose debris, damage property, and cause power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The window for strongest winds is Saturday night through Sunday morning. Winds will diminish through the day Sunday but will remain gusty at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ DAN
775 WWAK71 PAFC 201242 NPWAER URGENT - WEATHER MESSAGE National Weather Service Anchorage AK 342 AM AKST Sat Dec 20 2025 AKZ711-210215- /O.CON.PAFC.HW.W.0019.251221T0300Z-251221T2100Z/ Lower Matanuska Valley- Including the cities of Big Lake, Palmer, and Wasilla 342 AM AKST Sat Dec 20 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON AKST SUNDAY... * WHAT...Northeast winds 30 to 40 mph with gusts from 60 to 75 mph expected. * WHERE...Lower Matanuska Valley. * WHEN...From 6 PM this evening to noon AKST Sunday. * IMPACTS...High winds could move loose debris, damage property, and cause power outages. Travel could be difficult, especially for high profile vehicles. Increased fire weather concerns due to dry conditions and strong winds. * ADDITIONAL DETAILS...The window for strongest winds is from this evening through early Sunday morning. Winds will diminish through the day Sunday but will remain gusty at times. Dry conditions and strong winds will lead to increased fire weather concerns. Avoid outdoor burning and any activity that will produce a spark. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ AKZ731-210215- /O.CON.PAFC.HW.W.0019.251221T0300Z-251221T2100Z/ Valdez- Including the cities of Valdez 342 AM AKST Sat Dec 20 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON AKST SUNDAY... * WHAT...Northeast winds 25 to 45 mph with gusts from 60 to 75 mph expected. * WHERE...Valdez. * WHEN...From 6 PM this evening to noon AKST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. * ADDITIONAL DETAILS...The window for strongest winds is from tonight through early Sunday morning. Winds will slowly diminish through Sunday but will remain gusty. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ AKZ732-210215- /O.CON.PAFC.HW.W.0019.251221T0300Z-251222T0300Z/ Thompson Pass- Including the cities of Thompson Pass 342 AM AKST Sat Dec 20 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM AKST SUNDAY... * WHAT...Northeast winds 40 to 55 mph with gusts up to 80 mph expected. * WHERE...Thompson Pass. * WHEN...From 6 PM this evening to 6 PM AKST Sunday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The window for strongest winds is from tonight through Sunday morning. Winds will diminish through the day Sunday but will remain gusty at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Use caution if you must drive. && $$ AKZ701-210215- /O.NEW.PAFC.WI.Y.0005.251221T0300Z-251221T2100Z/ Anchorage- Including the cities of Eklutna, Eagle River, and Anchorage 342 AM AKST Sat Dec 20 2025 ...WIND ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON AKST SUNDAY... * WHAT...North winds 20 to 30 mph with gusts of 40 to 55 mph expected. * WHERE...Northwest Anchorage. * WHEN...From 6 PM this evening to noon AKST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. * ADDITIONAL DETAILS...Strong and gusty winds will pick up quickly this evening into tonight across mainly northern and western parts of the Anchorage area. Winds will rapidly weaken Sunday morning and fully diminish Sunday afternoon. Dry conditions and strong winds will lead to increased fire weather concerns. Avoid outdoor burning and any activity that will produce a spark. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Shriver
167 WWAK71 PAFC 202354 NPWAER URGENT - WEATHER MESSAGE National Weather Service Anchorage AK 254 PM AKST Sat Dec 20 2025 AKZ711-211500- /O.CON.PAFC.HW.W.0019.251221T0300Z-251221T2100Z/ Lower Matanuska Valley- Including the cities of Palmer, Wasilla, and Big Lake 254 PM AKST Sat Dec 20 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON AKST SUNDAY... * WHAT...Northeast winds 30 to 40 mph with gusts from 60 to 70 mph expected. * WHERE...Lower Matanuska Valley. * WHEN...From 6 PM this evening to noon AKST Sunday. * IMPACTS...High winds could move loose debris, damage property, and cause power outages. Travel could be difficult, especially for high profile vehicles. Increased fire weather concerns due to dry conditions and strong winds. * ADDITIONAL DETAILS...The window for strongest winds is from this evening through early Sunday morning. Winds will diminish through the day Sunday but will remain gusty at times. Dry conditions and strong winds will lead to increased fire weather concerns. Avoid outdoor burning and any activity that will produce a spark. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ AKZ731-211500- /O.CON.PAFC.HW.W.0019.251221T0300Z-251221T2100Z/ Valdez- Including the cities of Valdez 254 PM AKST Sat Dec 20 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON AKST SUNDAY... * WHAT...Northeast winds 25 to 45 mph with gusts from 60 to 75 mph expected. * WHERE...Valdez. * WHEN...From 6 PM this evening to noon AKST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. * ADDITIONAL DETAILS...The window for strongest winds is from tonight through early Sunday morning. Winds will slowly diminish through Sunday but will remain gusty. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ AKZ732-211500- /O.CON.PAFC.HW.W.0019.251221T0300Z-251222T0300Z/ Thompson Pass- Including the cities of Thompson Pass 254 PM AKST Sat Dec 20 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM AKST SUNDAY... * WHAT...Northeast winds 40 to 55 mph with gusts up to 80 mph expected. * WHERE...Thompson Pass. * WHEN...From 6 PM this evening to 6 PM AKST Sunday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The window for strongest winds is from tonight through Sunday morning. Winds will diminish through the day Sunday but will remain gusty at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ AKZ701-211500- /O.CON.PAFC.WI.Y.0005.251221T0300Z-251221T2100Z/ Anchorage- Including the cities of Eklutna, Anchorage, and Eagle River 254 PM AKST Sat Dec 20 2025 ...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON AKST SUNDAY... * WHAT...North winds 20 to 30 mph with gusts of 40 to 55 mph expected. * WHERE...Northwest Anchorage. * WHEN...From 6 PM this evening to noon AKST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. * ADDITIONAL DETAILS...Strong and gusty winds will pick up quickly this evening into tonight across mainly northern and western parts of the Anchorage area. Winds will rapidly weaken Sunday morning and fully diminish Sunday afternoon. Dry conditions and strong winds will lead to increased fire weather concerns. Avoid outdoor burning and any activity that will produce a spark. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ AM
743 WWAK71 PAFC 211240 NPWAER URGENT - WEATHER MESSAGE National Weather Service Anchorage AK 340 AM AKST Sun Dec 21 2025 AKZ711-212100- /O.CON.PAFC.HW.W.0019.000000T0000Z-251221T2100Z/ Lower Matanuska Valley- Including the cities of Big Lake, Palmer, and Wasilla 340 AM AKST Sun Dec 21 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON AKST TODAY... * WHAT...Northeast winds 30 to 40 mph with gusts from 60 to 70 mph occurring. * WHERE...Lower Matanuska Valley. * WHEN...Until noon AKST today. * IMPACTS...High winds could move loose debris, damage property, and cause power outages. Travel could be difficult, especially for high profile vehicles. Increased fire weather concerns due to dry conditions and strong winds. * ADDITIONAL DETAILS...The strongest winds are peaking and will steadily begin to weaken later this morning. Winds will continue to diminish through the day but will remain gusty at times. Dry conditions and strong winds will lead to increased fire weather concerns. Avoid outdoor burning and any activity that will produce a spark. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ AKZ731-212100- /O.CON.PAFC.HW.W.0019.000000T0000Z-251221T2100Z/ Valdez- Including the cities of Valdez 340 AM AKST Sun Dec 21 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON AKST TODAY... * WHAT...Northeast winds 25 to 45 mph with gusts from 60 to 75 mph occurring. * WHERE...Valdez. * WHEN...Until noon AKST today. * IMPACTS...High winds may move loose debris, damage property, and cause power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Winds have peaked overnight and will slowly diminish throughout the day today, but winds could remain gusty into this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. && $$ AKZ732-212115- /O.CON.PAFC.HW.W.0019.000000T0000Z-251222T0300Z/ Thompson Pass- Including the cities of Thompson Pass 340 AM AKST Sun Dec 21 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM AKST THIS EVENING... * WHAT...Northeast winds 40 to 55 mph with gusts up to 80 mph occurring. * WHERE...Thompson Pass. * WHEN...Until 6 PM AKST this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Winds will slowly diminish through this evening, but winds will remain gusty at times through Monday. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Use caution if you must drive. && $$ AKZ701-212100- /O.CON.PAFC.WI.Y.0005.000000T0000Z-251221T2100Z/ Anchorage- Including the cities of Eagle River, Anchorage, and Eklutna 340 AM AKST Sun Dec 21 2025 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON AKST TODAY... * WHAT...North winds 20 to 30 mph with gusts of 40 to 50 mph occurring. * WHERE...Northwest Anchorage. * WHEN...Until noon AKST today. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. * ADDITIONAL DETAILS...Strong winds have already peaked overnight across northern and western parts of the Anchorage area. Winds will rapidly weaken this morning and fully diminish this afternoon. Dry conditions and strong winds will lead to increased fire weather concerns. Avoid outdoor burning and any activity that will produce a spark. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Shriver
994 WWAK71 PAFC 212105 NPWAER URGENT - WEATHER MESSAGE National Weather Service Anchorage AK 1205 PM AKST Sun Dec 21 2025 AKZ711-220300- /O.EXP.PAFC.HW.W.0019.000000T0000Z-251221T2100Z/ /O.NEW.PAFC.WI.Y.0006.251221T2105Z-251222T0300Z/ Lower Matanuska Valley- Including the cities of Palmer, Wasilla, and Big Lake 1205 PM AKST Sun Dec 21 2025 ...WIND ADVISORY IN EFFECT UNTIL 6 PM AKST THIS EVENING... ...HIGH WIND WARNING HAS EXPIRED... * WHAT...North winds 20 to 30 mph with gusts up to 55 mph. * WHERE...Lower Matanuska Valley. * WHEN...Until 6 PM AKST this evening. * IMPACTS...High winds could move loose debris, damage property, and cause power outages. Travel could be difficult, especially for high profile vehicles. Increased fire weather concerns due to dry conditions and strong winds. * ADDITIONAL DETAILS...Winds will slowly diminish through this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ AKZ731-212215- /O.EXP.PAFC.HW.W.0019.000000T0000Z-251221T2100Z/ Valdez- Including the cities of Valdez 1205 PM AKST Sun Dec 21 2025 ...HIGH WIND WARNING HAS EXPIRED... Winds have diminished below warning criteria. $$ AKZ701-212215- /O.EXP.PAFC.WI.Y.0005.000000T0000Z-251221T2100Z/ Anchorage- Including the cities of Eagle River, Eklutna, and Anchorage 1205 PM AKST Sun Dec 21 2025 ...WIND ADVISORY HAS EXPIRED... Winds have dropped below advisory criteria. $$ AKZ732-220515- /O.NEW.PAFC.CW.Y.0008.251222T0000Z-251223T2000Z/ /O.CON.PAFC.HW.W.0019.000000T0000Z-251222T0300Z/ Thompson Pass- Including the cities of Thompson Pass 1205 PM AKST Sun Dec 21 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM AKST THIS EVENING... ...COLD WEATHER ADVISORY IN EFFECT UNTIL 11 AM AKST TUESDAY... * WHAT...For the High Wind Warning, north winds 25 to 35 mph with gusts up to 60 mph. For the Cold Weather Advisory, very cold wind chills as low as 45 below expected. * WHERE...Thompson Pass. * WHEN...For the High Wind Warning, until 6 PM AKST this evening. For the Cold Weather Advisory, until 11 AM AKST Tuesday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Winds will slowly diminish through this evening, but winds will remain gusty at times through Monday. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ AKZ741>744-749>751-220515- /O.NEW.PAFC.CW.Y.0008.251222T0000Z-251223T2000Z/ Northern Copper Valley-Western Copper Valley-Central Copper Valley-Ernestine-Southern Copper Valley-Tok Cutoff-McCarthy- Including the cities of McCarthy, Nebesna, 46 Mile, Mentasta Lake, Paxson, Gakona, Copper Center, Slana, Tolsona, Nelchina, Tonsina, Kenny Lake, Chitina, Mendeltna, Glennallen, and Chistochina 1205 PM AKST Sun Dec 21 2025 ...COLD WEATHER ADVISORY IN EFFECT UNTIL 11 AM AKST TUESDAY... * WHAT...Very cold wind chills as low as 59 below expected. * WHERE...Copper River Basin. * WHEN...Until 11 AM AKST Tuesday. * IMPACTS...The dangerously cold wind chills as low as 60 below zero could cause frostbite on exposed skin in as little as 5 minutes. Frostbite and hypothermia are likely if exposed to these temperatures. Wind chill values can lead to hypothermia with prolonged exposure. Very cold temperatures can lead to hypothermia with prolonged exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ Mitchell
055 WWAK71 PAFC 220252 NPWAER URGENT - WEATHER MESSAGE National Weather Service Anchorage AK 552 PM AKST Sun Dec 21 2025 AKZ732-232000- /O.EXP.PAFC.HW.W.0019.000000T0000Z-251222T0300Z/ /O.CON.PAFC.CW.Y.0008.000000T0000Z-251223T2000Z/ Thompson Pass- Including the cities of Thompson Pass 552 PM AKST Sun Dec 21 2025 ...COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM AKST TUESDAY... ...HIGH WIND WARNING WILL EXPIRE AT 6 PM AKST THIS EVENING... * WHAT...Very cold wind chills as low as 45 below. * WHERE...Thompson Pass. * WHEN...Until 11 AM AKST Tuesday. * IMPACTS...The dangerously cold wind chills as low as 45 below zero could cause frostbite on exposed skin in as little as 10 minutes. Frostbite and hypothermia are likely if exposed to these temperatures. Wind chill values can lead to hypothermia with prolonged exposure. Very cold temperatures can lead to hypothermia with prolonged exposure. * ADDITIONAL DETAILS...Per the expiring High Wind Warning: wind gusts continue, but will diminish progressively overnight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ AKZ711-220400- /O.EXP.PAFC.WI.Y.0006.000000T0000Z-251222T0300Z/ Lower Matanuska Valley- Including the cities of Palmer, Big Lake, and Wasilla 552 PM AKST Sun Dec 21 2025 ...WIND ADVISORY WILL EXPIRE AT 6 PM AKST THIS EVENING... Winds will continue to diminish overnight. $$ AKZ741>744-749>751-232000- /O.CON.PAFC.CW.Y.0008.000000T0000Z-251223T2000Z/ Northern Copper Valley-Western Copper Valley-Central Copper Valley-Ernestine-Southern Copper Valley-Tok Cutoff-McCarthy- Including the cities of Tolsona, Tonsina, Chitina, 46 Mile, Glennallen, Mendeltna, Copper Center, Kenny Lake, Slana, Nelchina, Nebesna, Mentasta Lake, Paxson, Gakona, McCarthy, and Chistochina 552 PM AKST Sun Dec 21 2025 ...COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM AKST TUESDAY... * WHAT...Very cold wind chills as low as 60 below. * WHERE...Copper River Basin. * WHEN...Until 11 AM AKST Tuesday. * IMPACTS...The dangerously cold wind chills as low as 60 below zero could cause frostbite on exposed skin in as little as 5 minutes. Frostbite and hypothermia are likely if exposed to these temperatures. Wind chill values can lead to hypothermia with prolonged exposure. Very cold temperatures can lead to hypothermia with prolonged exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ AB
What forecasters said that day
The local office's own words before this high wind 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 high wind warning went out at Dec 19, 4:58 AM AKST, 4 hours 29 minutes earlier.
Area forecast discussion, Dec 19, 4:58 AM AKST, 4 hours 29 minutes before
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 458 AM AKST Fri Dec 19 2025 .SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3)... Key Message: Winds will increase again this weekend, especially through the Matanuska Valley, Thompson Pass, and Valdez. Gusty conditions could also make it into North/West Anchorage. We are now in the third week of this same cold, dry and windy pattern which is increasing winds every few days as short waves drive stronger winds aloft toward the surface. This means that for the third weekend in a row there will be strong winds in the Matanuska Valley and Valdez where there are high wind watches in effect for parts of this coming weekend. The good news for the Matanuska Valley, is that winds do not appear likely to reach the same magnitude as either of the past two weekends. At this time, it looks likely that maximum wind gusts will reach speeds of 65 to 75 mph as opposed to the 90 mph+ that occurred the past two weekends. In addition, the duration should be shorter with the warning level winds expected from Saturday afternoon to Sunday afternoon. Even so, 65 to 75 mph winds are quite strong, so prepare for winds of this magnitude for this third weekend in a row. Valdez to Thompson Pass is the other location that is under a High Wind Watch for this weekend. While winds remain gusty there today, this is the reprieve in the high winds before they increase again Saturday into Sunday night. ANother area of interest will be the Copper River Basin for the potential for a significant drop in temperatures or wind chills for the early part of next week. For the next two days the ambient temperature will drop into the 20 to 30 below zero range when the wind is not blowing and then increase instantly when some wind mixes out the inversion some. However, the resulting wind chills will be close to what the ambient temperature was. By Sunday night, the winds should have diminished as even colder air moves into the region which may drop temperatures to 40 below which could even approach 50 below in the colder areas of the Basin for Monday and Tuesday. && .SHORT TERM FORECAST SOUTHWEST ALASKA/BERING SEA/ALEUTIANS (Days 1 through 3: Today through Sunday)... A seemingly unbreakable upper level ridge continues to dominate the synoptic picture across the Bering Sea this morning. This strong area of high pressure is helping divert incoming systems from the North Pacific away from the region, favoring a prevailing low track well to the north and west of the region. One of such lows is moving north along the Kamchatka Peninsula, with a trailing gale force front extending out into the southwest corner of the Bering. Areas of stratus and fog are continuing to drift across portions of the Bering and Aleutians as moisture in the marine layer steadily builds up under the strong inversion and warm air aloft anchored under the strong blocking ridge. Across Southwest, northwest flow continues between the ridge to the west and a trough centered over Northwest Canada. Areas of low cloud cover and fog have spread from the Bering into parts of the Kuskokwim Delta overnight, with some pockets of freezing drizzle also affecting the area. A shortwave trough riding along the corridor of strong northwesterlies is pushing into Southwest from the western Interior, helping light snow to spread south into much of the Lower Kuskokwim Valley. Along the AKPen, gusty northwest gap winds of varying intensity perpetuate. In terms of the outlook through the weekend, not much change is expected in terms of the large scale pattern. The front currently entering the western Bering will move northwest and weaken as it moves across the northern half of the Bering, bringing some slightly increased winds and rain/snow showers to the Pribilofs as it brushes past late Saturday into Sunday morning. The front will later reach the Kuskokwim Delta Coast Sunday afternoon, likely bringing in a round of light snow to the Kuskokwim Delta before the front fully shears apart. Otherwise, expect a steady cooling trend and continued dry conditions across most of Southwest through Sunday as Arctic air steadily builds in from the Interior. Along the AKPen, gusty gap winds will continue through the weekend as strong northwest flow holds firm in place. By the end of the weekend, a new shortwave and attendant surface low will round the crest of the upper ridge, spreading southwest winds up to gale force range across much of the central and western Bering through Sunday night. This system will have a good chance to bring more accumulating snow to western parts of Southwest as heads into the West Coast early next week. -AS .LONG TERM FORECAST (Days 4 through 7: Monday through Thursday)... Strong high pressure continues to be situated over the North Pacific and extend north into the Bering Sea. Influences from weak low pressure systems may work to keep the Gulf of Alaska relatively unsettled. There continues to be good agreement that a shortwave trough diving south across Southcentral Alaska this weekend leads to another period of enhanced winds. As a result, there is some potential for high winds through typical areas, including the Matanuska Valley and the Valdez area/Thompson Pass into early next workweek. Temperatures remain below average across Southcentral Alaska, with the coldest area being the Copper River Basin, where ambient temperatures will hover in the range of 20 to 40 below zero. Southwest Alaska, however, will see warmer, somewhat moist air ride up and over the ridge, bringing increased potential for precipitation. A series of low pressure systems track up the coast of Far Eastern Russia toward Western Alaska through mid-week. This increases chances for precipitation in Southwest Alaska Sunday onward. Precipitation is likely to be mostly snow, though liquid precipitation is possible along the coast and is increasingly likely southward along the Alaska Peninsula. Southcentral Alaska looks to remain mostly dry and downsloped in northwesterly flow, though chances for some light snow to make it past the Alaska Range increase for Tuesday night and Wednesday as low pressure potentially tracks into the Gulf from Southwest Alaska. && .AVIATION... PANC...VFR conditions and light winds will persist. &&
The office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 18, 3:17 PM AKST | Gale Warning | AFC | 37 hr | |
| Dec 19, 3:54 AM AKST | Gale Warning | AFC | 11 hr | |
| Dec 19, 3:54 AM AKST | Small Craft Advisory | AFC | 11 hr | |
| Dec 19, 3:55 AM AKST | Gale Warning | AFC | 11 hr | |
| Dec 19, 2:34 PM AKST | Small Craft Advisory | AFC | 36 hr | |
| Dec 19, 2:35 PM AKST | Gale Warning | AFC | 49 hr | |
| Dec 19, 2:38 PM AKST | Gale Warning | AFC | 13 hr | |
| Dec 19, 2:38 PM AKST | Small Craft Advisory | AFC | 13 hr | |
| Dec 19, 2:38 PM AKST | Heavy Freezing Spray Warning | AFC | 13 hr |
Nearby
High Wind Warnings in Alaska, 2025Every high wind warning in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.