Alert archive / Idaho / High Wind Warnings in 2025
High Wind Warning 2, NWS Boise, ID
NWS Boise, ID issued this high wind warning at Dec 15, 2025, 8:23 PM MST for 6 counties in Idaho. It took effect at Dec 17, 2025, 8:00 AM MST. It was in force for 9 hr. 35 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 15, 2025, 8:23 PM MST (03:23 UTC)
- In effect from
- Dec 17, 2025, 8:00 AM MST
- Expired
- Dec 17, 2025, 5:00 PM MST
- In force
- 9 hr
- Issued by
- NWS Boise, ID
Counties Camas County, ID, Elmore County, ID, Gooding County, ID, Jerome County, ID, Owyhee County, ID, Twin Falls County, ID
The radar
The Boise radar (KCBX), 118 km from the middle of the area, began a volume at 03:26 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 17, 8:02 AM MST | NON-TSTM WND GST 60 | 7 Se Hot Springs, ID | Mesonet station TT087 Saylor Creek. |
| Dec 17, 8:07 AM MST | TSTM WND GST 60 | 1 S Mountain Home Afb, ID | AWOS station KMUO Mountain Home AFB. |
| Dec 17, 8:25 AM MST | TSTM WND DMG | Mountain Home, ID | Member of the public posted a photo of a downed tree resulting in fence damage. |
| Dec 17, 8:30 AM MST | TSTM WND GST 61 | 6 S Twin Falls, ID | ASOS station KTWF Twin Falls. |
| Dec 17, 8:45 AM MST | TSTM WND GST 67 | 14 Ese Hollister, ID | Mesonet station TGFI1 Trail Gulch. |
| Dec 17, 8:52 AM MST | NON-TSTM WND GST 62 | 20 Wsw Castleford, ID | Mesonet station HBFI1 Horse Butte. |
| Dec 17, 9:00 AM MST | TSTM WND DMG | Bliss, ID | Member of the public posted a photo of new roofing ripped off of a house. |
| Dec 17, 9:00 AM MST | TSTM WND DMG | Hazelton, ID | Member of the public posted a photo of two pine trees downed on top of a house. |
| Dec 17, 9:00 AM MST | TSTM WND GST 62 | 4 E Jerome, ID | Mesonet station 8408 D4 - Jerome Butte. |
| Dec 17, 9:03 AM MST | TSTM WND GST 63 | 3 E Jerome, ID | KJER. |
| Dec 17, 9:06 AM MST | TSTM WND DMG | Glenns Ferry, ID | A member of the public posted a photo of a large white elm tree downed by wind from a gust front. |
| Dec 17, 9:09 AM MST | NON-TSTM WND GST 72 | 4 Sw Featherville, ID | Mesonet station WAGI1 Wagontown. |
| Dec 17, 9:15 AM MST | TSTM WND GST 66 | 2 Ssw Hazelton, ID | Mesonet station 8401 D4 - Valley Interchange. |
| Dec 17, 9:15 AM MST | NON-TSTM WND GST 60 | 1 Ne Kimberly, ID | Mesonet station TWFI 1.3 NE Kimberly (AGRIMET). |
| Dec 17, 9:30 AM MST | TSTM WND DMG | 2 Ene Filer, ID | *** 1 INJ *** ***DELAYED REPORT*** Time estimated from radar. Approximate location. High winds flipped a semi on US93 near Filer, injuring the driver. |
| Dec 17, 9:42 AM MST | TSTM WND DMG | 1 N Jerome, ID | A member of the public posted a video of several large trees broken from thunderstorm winds, blocking a driveway. |
| Dec 17, 9:42 AM MST | NON-TSTM WND GST 61 | 19 Ese Riddle, ID | Mesonet station PCKI1 Pole Creek. |
| Dec 17, 9:44 AM MST | TSTM WND GST 72 | 10 Ssw Hill City, ID | Mesonet station DEHI1 Deer Haven. |
| Dec 17, 9:46 AM MST | TSTM WND GST 68 | 6 S Twin Falls, ID | ASOS station KTWF Twin Falls. |
| Dec 17, 9:52 AM MST | NON-TSTM WND GST 66 | 1 S Mountain Home Afb, ID | Mesonet station MTHI1 Mountain Home AFB RAWS. |
| Dec 17, 9:52 AM MST | NON-TSTM WND GST 67 | 20 Wsw Castleford, ID | Mesonet station HBFI1 Horse Butte. |
| Dec 17, 10:00 AM MST | TSTM WND DMG | 3 Sw Twin Falls, ID | A member of the public posted a photo of a large fallen tree over the road, blocking traffic. |
| Dec 17, 10:00 AM MST | NON-TSTM WND GST 115 | 14 E Atlanta, ID | Mesonet station VINMT 14.5 S Obsidian (UUNET). |
| Dec 17, 10:10 AM MST | TSTM WND DMG | Hollister, ID | ***DELAYED REPORT*** Time estimated from radar. Approximate location. Multiple buildings and cars damaged. Trees uprooted. Large debris scattered across the town of Hollister. |
| Dec 17, 10:15 AM MST | NON-TSTM WND GST 63 | 8 Se Mountain Home, ID | Mesonet station 2996 D3 - Hammett Hill. |
| Dec 17, 10:37 AM MST | NON-TSTM WND GST 68 | 3 E Jerome, ID | AWOS station KJER Jerome County. |
| Dec 17, 10:45 AM MST | NON-TSTM WND GST 61 | 3 Ssw Fairfield, ID | Mesonet station FAFI 3.1 SW Fairfield (AGRIMET). |
| Dec 17, 10:45 AM MST | NON-TSTM WND GST 64 | 14 Ssw Rogerson, ID | Mesonet station 8442 D4 - Jackpot. |
| Dec 17, 11:00 AM MST | NON-TSTM WND GST 64 | 10 Ese Anderson Dam, ID | Mesonet station 3013 D4 - Pine Turnoff. |
| Dec 17, 11:15 AM MST | NON-TSTM WND GST 60 | 3 N Twin Falls, ID | Mesonet station 3117 D4 - Perrine Bridge. |
| Dec 17, 11:30 AM MST | NON-TSTM WND GST 61 | 3 N Hansen, ID | Mesonet station 3251 D4 - Hansen Bridge. |
| Dec 17, 11:30 AM MST | NON-TSTM WND GST 66 | 13 Nne Gooding, ID | Mesonet station 2995 D4 - Gwynn Ranch Hill. |
| Dec 17, 11:39 AM MST | NON-TSTM WND GST 75 | 17 Se Atlanta, ID | Mesonet station FLEI1 Fleck Summit. |
| Dec 17, 11:45 AM MST | NON-TSTM WND GST 62 | 3 Wsw Gooding, ID | AWOS station KGNG 3 WSW Gooding. |
| Dec 17, 2:00 PM MST | NON-TSTM WND DMG | Fairfield, ID | A member of the public posted a video of a greenhouse destroyed from the high winds. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Boise Airport, ID (KBOI), launched 00:00Z, 3.4 hours before the alert went out and 120 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
- 1875 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 307 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
983 WWUS75 KBOI 160323 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 823 PM MST Mon Dec 15 2025 IDZ012-ORZ064-161200- /O.CAN.KBOI.HW.A.0002.251217T1200Z-251217T2100Z/ /O.CON.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ Lower Treasure Valley-Oregon Lower Treasure Valley- Including the cities of Caldwell, Nyssa, Ontario, and Nampa 823 PM MST Mon Dec 15 2025 /723 PM PST Mon Dec 15 2025/ ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST /4 AM PST/ TUESDAY... ...HIGH WIND WATCH IS CANCELLED... * WHAT...An extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. * WHERE...Lower Treasure Valley Zones. * WHEN...Until 5 AM MST /4 AM PST/ Tuesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air. && $$ IDZ028-161200- /O.UPG.KBOI.HW.A.0002.251217T1200Z-251217T2100Z/ /O.NEW.KBOI.HW.W.0002.251217T1800Z-251217T2100Z/ /O.CON.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ Camas Prairie- Including the cities of Selby, Hill City, Corral, Fairfield, Soldier, and Blaine 823 PM MST Mon Dec 15 2025 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... ...HIGH WIND WARNING IN EFFECT FROM 11 AM TO 2 PM MST WEDNESDAY... * WHAT...For the Air Stagnation Advisory, an extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. For the High Wind Warning, west winds 35 to 40 mph with gusts up to 60 mph expected. * WHERE...Camas Prairie. * WHEN...For the Air Stagnation Advisory, until 5 AM MST Tuesday. For the High Wind Warning, from 11 AM to 2 PM MST Wednesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air. Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. && $$ IDZ014-016-161200- /O.UPG.KBOI.HW.A.0002.251217T1200Z-251217T2100Z/ /O.NEW.KBOI.WI.Y.0019.251217T1200Z-251218T0000Z/ /O.CON.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ Upper Treasure Valley-Western Magic Valley- Including the cities of Twin Falls and Boise 823 PM MST Mon Dec 15 2025 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... ...WIND ADVISORY IN EFFECT FROM 5 AM TO 5 PM MST WEDNESDAY... * WHAT...For the Air Stagnation Advisory, an extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. For the Wind Advisory, west winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Western Magic Valley and Upper Treasure Valley. * WHEN...For the Air Stagnation Advisory, until 5 AM MST Tuesday. For the Wind Advisory, from 5 AM to 5 PM MST Wednesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ ORZ061>063-161200- /O.UPG.KBOI.HW.A.0002.251217T1200Z-251217T1800Z/ /O.NEW.KBOI.WI.Y.0019.251217T1200Z-251217T1800Z/ /O.CON.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ Harney County-Baker County-Malheur County- Including the cities of Burns, New Princeton, Baker, Venator, Crane, Diamond, Dunnean, Buchanan, and Malheur City 723 PM PST Mon Dec 15 2025 /823 PM MST Mon Dec 15 2025/ ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM MST/ TUESDAY... ...WIND ADVISORY IN EFFECT FROM 4 AM PST /5 AM MST/ TO 10 AM PST /11 AM MST/ WEDNESDAY... * WHAT...For the Air Stagnation Advisory, an extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. For the Wind Advisory, southwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Baker County, Harney County, and Malheur County. * WHEN...For the Air Stagnation Advisory, until 4 AM PST /5 AM MST/ Tuesday. For the Wind Advisory, from 4 AM PST /5 AM MST/ to 10 AM PST /11 AM MST/ Wednesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ IDZ015-029-030-161200- /O.UPG.KBOI.HW.A.0002.251217T1200Z-251217T2100Z/ /O.NEW.KBOI.WI.Y.0019.251217T1200Z-251218T0000Z/ Southwest Highlands-Owyhee Mountains-Southern Twin Falls County- Including the cities of Grasmere, Riddle, Silver City, Murphy Hot Springs, Rogerson, Reynolds, Hollister, and Three Creek 823 PM MST Mon Dec 15 2025 ...WIND ADVISORY IN EFFECT FROM 5 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Southern Twin Falls County, Owyhee Mountains, and Southwest Highlands. * WHEN...From 5 AM to 5 PM MST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ IDZ011-013-033-161200- /O.CON.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ West Central Mountains-Boise Mountains-Upper Weiser River- Including the cities of Prairie, Big Creek, Cuprum, Fruitvale, Goodrich, Indian Valley, Anderson Dam, Pine, Council, McCall, Glendale, Mesa, Cascade, Bear, Ola, Cambridge, and Warm Lake 823 PM MST Mon Dec 15 2025 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... * WHAT...An extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. * WHERE...Boise Mountains, Upper Weiser River, and West Central Mountains. * WHEN...Until 5 AM MST Tuesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air. && $$ JDS
7 follow-up statements
313 WWUS75 KBOI 160356 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 856 PM MST Mon Dec 15 2025 IDZ028-161200- /O.EXT.KBOI.HW.W.0002.251217T1800Z-251218T0000Z/ /O.CON.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ Camas Prairie- Including the cities of Selby, Hill City, Corral, Fairfield, Soldier, and Blaine 856 PM MST Mon Dec 15 2025 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... ...HIGH WIND WARNING NOW IN EFFECT FROM 11 AM TO 5 PM MST WEDNESDAY... * WHAT...For the Air Stagnation Advisory, an extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. For the High Wind Warning, west winds 35 to 40 mph with gusts up to 60 mph expected. * WHERE...Camas Prairie. * WHEN...For the Air Stagnation Advisory, until 5 AM MST Tuesday. For the High Wind Warning, from 11 AM to 5 PM MST Wednesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air. Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. && $$ IDZ014-016-161200- /O.CON.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ /O.CON.KBOI.WI.Y.0019.251217T1200Z-251218T0000Z/ Upper Treasure Valley-Western Magic Valley- Including the cities of Twin Falls and Boise 856 PM MST Mon Dec 15 2025 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... ...WIND ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM MST WEDNESDAY... * WHAT...For the Air Stagnation Advisory, an extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. For the Wind Advisory, west winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Western Magic Valley and Upper Treasure Valley. * WHEN...For the Air Stagnation Advisory, until 5 AM MST Tuesday. For the Wind Advisory, from 5 AM to 5 PM MST Wednesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ ORZ061>063-161200- /O.CON.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ /O.CON.KBOI.WI.Y.0019.251217T1200Z-251217T1800Z/ Harney County-Baker County-Malheur County- Including the cities of Burns, New Princeton, Baker, Venator, Crane, Diamond, Dunnean, Buchanan, and Malheur City 756 PM PST Mon Dec 15 2025 /856 PM MST Mon Dec 15 2025/ ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM MST/ TUESDAY... ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM PST /5 AM MST/ TO 10 AM PST /11 AM MST/ WEDNESDAY... * WHAT...For the Air Stagnation Advisory, an extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. For the Wind Advisory, southwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Baker County, Harney County, and Malheur County. * WHEN...For the Air Stagnation Advisory, until 4 AM PST /5 AM MST/ Tuesday. For the Wind Advisory, from 4 AM PST /5 AM MST/ to 10 AM PST /11 AM MST/ Wednesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ IDZ015-029-030-161200- /O.CON.KBOI.WI.Y.0019.251217T1200Z-251218T0000Z/ Southwest Highlands-Owyhee Mountains-Southern Twin Falls County- Including the cities of Grasmere, Riddle, Silver City, Murphy Hot Springs, Rogerson, Reynolds, Hollister, and Three Creek 856 PM MST Mon Dec 15 2025 ...WIND ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Southern Twin Falls County, Owyhee Mountains, and Southwest Highlands. * WHEN...From 5 AM to 5 PM MST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ IDZ011>013-033-ORZ064-161200- /O.CON.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ West Central Mountains-Lower Treasure Valley-Boise Mountains- Upper Weiser River-Oregon Lower Treasure Valley- Including the cities of Glendale, Cascade, Warm Lake, Prairie, Big Creek, Indian Valley, Mesa, Caldwell, Goodrich, Fruitvale, Ontario, Anderson Dam, Pine, McCall, Ola, Nyssa, Nampa, Cuprum, Council, Bear, and Cambridge 856 PM MST Mon Dec 15 2025 /756 PM PST Mon Dec 15 2025/ ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST /4 AM PST/ TUESDAY... * WHAT...An extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. * WHERE...Portions of southwest Idaho and southeast Oregon. * WHEN...Until 5 AM MST /4 AM PST/ Tuesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air. && $$ JDS
966 WWUS75 KBOI 160904 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 204 AM MST Tue Dec 16 2025 IDZ028-162100- /O.CAN.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ /O.EXT.KBOI.HW.W.0002.251217T1500Z-251218T0000Z/ Camas Prairie- Including the cities of Selby, Soldier, Corral, Hill City, Fairfield, and Blaine 204 AM MST Tue Dec 16 2025 ...HIGH WIND WARNING NOW IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... ...AIR STAGNATION ADVISORY IS CANCELLED... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Camas Prairie. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds may blow down trees, tree limbs and power lines. Travel will be dangerous for high profile vehicles. Power outages possible. $$ IDZ011-013-162100- /O.CAN.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ /O.EXA.KBOI.WI.Y.0019.251217T1200Z-251218T0000Z/ West Central Mountains-Boise Mountains- Including the cities of McCall, Warm Lake, Anderson Dam, Big Creek, Cuprum, Prairie, Cascade, Bear, Pine, and Ola 204 AM MST Tue Dec 16 2025 ...WIND ADVISORY IN EFFECT FROM 5 AM TO 5 PM MST WEDNESDAY... ...AIR STAGNATION ADVISORY IS CANCELLED... * WHAT...West winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Boise Mountains and West Central Mountains. * WHEN...From 5 AM to 5 PM MST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Trees may be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ IDZ014-016-162100- /O.CAN.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ /O.CON.KBOI.WI.Y.0019.251217T1200Z-251218T0000Z/ Upper Treasure Valley-Western Magic Valley- Including the cities of Twin Falls and Boise 204 AM MST Tue Dec 16 2025 ...WIND ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM MST WEDNESDAY... ...AIR STAGNATION ADVISORY IS CANCELLED... * WHAT...West winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Western Magic Valley and Upper Treasure Valley. * WHEN...From 5 AM to 5 PM MST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Trees may be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ ORZ061>063-162100- /O.CAN.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ /O.CON.KBOI.WI.Y.0019.251217T1200Z-251217T1800Z/ Harney County-Baker County-Malheur County- Including the cities of Dunnean, Malheur City, Diamond, Baker, Burns, Venator, New Princeton, Buchanan, and Crane 104 AM PST Tue Dec 16 2025 /204 AM MST Tue Dec 16 2025/ ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM PST /5 AM MST/ TO 10 AM PST /11 AM MST/ WEDNESDAY... ...AIR STAGNATION ADVISORY IS CANCELLED... * WHAT...Southwest winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Baker County, Harney County, and Malheur County. * WHEN...From 4 AM PST /5 AM MST/ to 10 AM PST /11 AM MST/ Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Trees may be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ IDZ012-033-ORZ064-161015- /O.CAN.KBOI.AS.Y.0004.000000T0000Z-251216T1200Z/ Lower Treasure Valley-Upper Weiser River-Oregon Lower Treasure Valley- Including the cities of Nampa, Glendale, Mesa, Council, Nyssa, Cambridge, Goodrich, Fruitvale, Caldwell, Ontario, and Indian Valley 204 AM MST Tue Dec 16 2025 /104 AM PST Tue Dec 16 2025/ ...AIR STAGNATION ADVISORY IS CANCELLED... Winds aloft will increase. $$ IDZ015-029-030-162100- /O.CON.KBOI.WI.Y.0019.251217T1200Z-251218T0000Z/ Southwest Highlands-Owyhee Mountains-Southern Twin Falls County- Including the cities of Rogerson, Reynolds, Riddle, Grasmere, Silver City, Three Creek, Murphy Hot Springs, and Hollister 204 AM MST Tue Dec 16 2025 ...WIND ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Southern Twin Falls County, Owyhee Mountains, and Southwest Highlands. * WHEN...From 5 AM to 5 PM MST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ KA
288 WWUS75 KBOI 161934 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 1234 PM MST Tue Dec 16 2025 IDZ015-016-030-171400- /O.UPG.KBOI.WI.Y.0019.251217T1200Z-251218T0000Z/ /O.EXA.KBOI.HW.W.0002.251217T1500Z-251218T0000Z/ Southwest Highlands-Western Magic Valley-Southern Twin Falls County- Including the cities of Murphy Hot Springs, Twin Falls, Rogerson, Three Creek, Grasmere, Riddle, and Hollister 1234 PM MST Tue Dec 16 2025 ...HIGH WIND WARNING IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Southern Twin Falls County, Western Magic Valley, and Southwest Highlands. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles on north-south roads1. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. && $$ IDZ028-171400- /O.CON.KBOI.HW.W.0002.251217T1500Z-251218T0000Z/ Camas Prairie- Including the cities of Hill City, Fairfield, Selby, Blaine, Soldier, and Corral 1234 PM MST Tue Dec 16 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Camas Prairie. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. && $$ IDZ011-013-014-029-171400- /O.CON.KBOI.WI.Y.0019.251217T1200Z-251218T0000Z/ West Central Mountains-Boise Mountains-Upper Treasure Valley- Owyhee Mountains- Including the cities of Silver City, Prairie, Cascade, Pine, Anderson Dam, Reynolds, Bear, McCall, Big Creek, Boise, Cuprum, Warm Lake, and Ola 1234 PM MST Tue Dec 16 2025 ...WIND ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 20 to 30 mph with gusts up to 60 mph expected. * WHERE...A portion of southwest Idaho. * WHEN...From 5 AM to 5 PM MST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ ORZ061>063-171400- /O.CON.KBOI.WI.Y.0019.251217T1200Z-251217T1800Z/ Harney County-Baker County-Malheur County- Including the cities of Diamond, Buchanan, Venator, New Princeton, Malheur City, Crane, Dunnean, Burns, and Baker 1134 AM PST Tue Dec 16 2025 /1234 PM MST Tue Dec 16 2025/ ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM PST /5 AM MST/ TO 10 AM PST /11 AM MST/ WEDNESDAY... * WHAT...West winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Baker County, Harney County, and Malheur County. * WHEN...From 4 AM PST /5 AM MST/ to 10 AM PST /11 AM MST/ Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ LC
799 WWUS75 KBOI 162102 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 202 PM MST Tue Dec 16 2025 IDZ015-016-030-171400- /O.CON.KBOI.HW.W.0002.251217T1500Z-251218T0000Z/ Southwest Highlands-Western Magic Valley-Southern Twin Falls County- Including the cities of Murphy Hot Springs, Twin Falls, Rogerson, Three Creek, Grasmere, Riddle, and Hollister 202 PM MST Tue Dec 16 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Southern Twin Falls County, Western Magic Valley, and Southwest Highlands. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. && $$ IDZ028-171400- /O.CON.KBOI.HW.W.0002.251217T1500Z-251218T0000Z/ Camas Prairie- Including the cities of Hill City, Fairfield, Selby, Blaine, Soldier, and Corral 202 PM MST Tue Dec 16 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Camas Prairie. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. && $$ IDZ012-033-ORZ064-171400- /O.EXA.KBOI.WI.Y.0019.251217T1200Z-251217T1800Z/ Lower Treasure Valley-Upper Weiser River-Oregon Lower Treasure Valley- Including the cities of Mesa, Council, Fruitvale, Glendale, Indian Valley, Caldwell, Nampa, Ontario, Goodrich, Cambridge, and Nyssa 202 PM MST Tue Dec 16 2025 /102 PM PST Tue Dec 16 2025/ ...WIND ADVISORY IN EFFECT FROM 5 AM MST /4 AM PST/ TO 11 AM MST /10 AM PST/ WEDNESDAY... * WHAT...West winds 25 to 30 mph with gusts up to 50 mph expected. * WHERE...Lower Treasure Valley Zones, and Upper Weiser River. * WHEN...From 5 AM MST /4 AM PST/ to 11 AM MST /10 AM PST/ Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ IDZ011-013-014-029-171400- /O.CON.KBOI.WI.Y.0019.251217T1200Z-251218T0000Z/ West Central Mountains-Boise Mountains-Upper Treasure Valley- Owyhee Mountains- Including the cities of Silver City, Prairie, Cascade, Pine, Anderson Dam, Reynolds, Bear, McCall, Big Creek, Boise, Cuprum, Warm Lake, and Ola 202 PM MST Tue Dec 16 2025 ...WIND ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 20 to 30 mph with gusts up to 60 mph expected. * WHERE...A portion of southwest Idaho. * WHEN...From 5 AM to 5 PM MST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ ORZ061>063-171400- /O.CON.KBOI.WI.Y.0019.251217T1200Z-251217T1800Z/ Harney County-Baker County-Malheur County- Including the cities of Diamond, Buchanan, Venator, New Princeton, Malheur City, Crane, Dunnean, Burns, and Baker 102 PM PST Tue Dec 16 2025 /202 PM MST Tue Dec 16 2025/ ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM PST /5 AM MST/ TO 10 AM PST /11 AM MST/ WEDNESDAY... * WHAT...West winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Baker County, Harney County, and Malheur County. * WHEN...From 4 AM PST /5 AM MST/ to 10 AM PST /11 AM MST/ Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ LC
162 WWUS75 KBOI 170955 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 255 AM MST Wed Dec 17 2025 IDZ015-016-030-172100- /O.CON.KBOI.HW.W.0002.251217T1500Z-251218T0000Z/ Southwest Highlands-Western Magic Valley-Southern Twin Falls County- Including the cities of Grasmere, Rogerson, Riddle, Hollister, Three Creek, Twin Falls, and Murphy Hot Springs 255 AM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 5 PM MST THIS AFTERNOON... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Southern Twin Falls County, Western Magic Valley, and Southwest Highlands. * WHEN...From 8 AM this morning to 5 PM MST this afternoon. * IMPACTS...Damaging winds may blow down trees, tree limbs and power lines. Travel will be dangerous for high profile vehicles. Power outages possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ IDZ028-172100- /O.CON.KBOI.HW.W.0002.251217T1500Z-251218T0000Z/ Camas Prairie- Including the cities of Selby, Hill City, Blaine, Fairfield, Soldier, and Corral 255 AM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 5 PM MST THIS AFTERNOON... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Camas Prairie. * WHEN...From 8 AM this morning to 5 PM MST this afternoon. * IMPACTS...Damaging winds may blow down trees, tree limbs and power lines. Travel will be dangerous for high profile vehicles. Power outages possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ IDZ011-013-014-029-172100- /O.CON.KBOI.WI.Y.0019.251217T1200Z-251218T0000Z/ West Central Mountains-Boise Mountains-Upper Treasure Valley- Owyhee Mountains- Including the cities of Prairie, McCall, Big Creek, Warm Lake, Pine, Silver City, Boise, Cuprum, Ola, Reynolds, Cascade, Anderson Dam, and Bear 255 AM MST Wed Dec 17 2025 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...West winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...A portion of southwest Idaho. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ IDZ012-033-ORZ061>064-171800- /O.CON.KBOI.WI.Y.0019.251217T1200Z-251217T1800Z/ Lower Treasure Valley-Upper Weiser River-Harney County-Baker County-Malheur County-Oregon Lower Treasure Valley- Including the cities of Caldwell, Glendale, Nampa, Fruitvale, Buchanan, Venator, Mesa, Council, Burns, Ontario, Nyssa, Dunnean, Indian Valley, Cambridge, Crane, Baker, Diamond, Malheur City, Goodrich, and New Princeton 255 AM MST Wed Dec 17 2025 /155 AM PST Wed Dec 17 2025/ ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST /10 AM PST/ THIS MORNING... * WHAT...West winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Portions of southwest Idaho and northeast and southeast Oregon. * WHEN...Until 11 AM MST /10 AM PST/ this morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ KA
766 WWUS75 KBOI 171812 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 1112 AM MST Wed Dec 17 2025 IDZ012-033-ORZ061>064-171915- /O.EXP.KBOI.WI.Y.0019.000000T0000Z-251217T1800Z/ Lower Treasure Valley-Upper Weiser River-Harney County-Baker County-Malheur County-Oregon Lower Treasure Valley- Including the cities of Malheur City, Mesa, Fruitvale, Dunnean, Council, Crane, New Princeton, Venator, Caldwell, Indian Valley, Burns, Ontario, Diamond, Buchanan, Cambridge, Nyssa, Baker, Glendale, Nampa, and Goodrich 1112 AM MST Wed Dec 17 2025 /1012 AM PST Wed Dec 17 2025/ ...WIND ADVISORY HAS EXPIRED... Winds have diminished so the advisory was allowed to expire. $$ IDZ015-016-030-180000- /O.CON.KBOI.HW.W.0002.000000T0000Z-251218T0000Z/ Southwest Highlands-Western Magic Valley-Southern Twin Falls County- Including the cities of Grasmere, Murphy Hot Springs, Twin Falls, Three Creek, Riddle, Rogerson, and Hollister 1112 AM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Southern Twin Falls County, Western Magic Valley, and Southwest Highlands. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Damaging winds may blow down trees, tree limbs and power lines. Travel will be dangerous for high profile vehicles. Power outages possible. $$ IDZ028-180000- /O.CON.KBOI.HW.W.0002.000000T0000Z-251218T0000Z/ Camas Prairie- Including the cities of Fairfield, Corral, Soldier, Blaine, Hill City, and Selby 1112 AM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Camas Prairie. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Damaging winds may blow down trees, tree limbs and power lines. Travel will be dangerous for high profile vehicles. Power outages possible. $$ IDZ011-013-014-029-180000- /O.CON.KBOI.WI.Y.0019.000000T0000Z-251218T0000Z/ West Central Mountains-Boise Mountains-Upper Treasure Valley- Owyhee Mountains- Including the cities of Bear, Pine, McCall, Big Creek, Silver City, Reynolds, Ola, Cuprum, Boise, Warm Lake, Cascade, Prairie, and Anderson Dam 1112 AM MST Wed Dec 17 2025 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...West winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...A portion of southwest Idaho. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ JDS
803 WWUS75 KBOI 172345 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 445 PM MST Wed Dec 17 2025 IDZ015-016-028-030-180045- /O.EXP.KBOI.HW.W.0002.000000T0000Z-251218T0000Z/ Southwest Highlands-Western Magic Valley-Camas Prairie-Southern Twin Falls County- Including the cities of Three Creek, Corral, Hollister, Soldier, Grasmere, Riddle, Blaine, Selby, Rogerson, Hill City, Murphy Hot Springs, Twin Falls, and Fairfield 445 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON... The strongest winds have subsided for the majority of the area with some ridgetops still seeing gusty winds up to 40 mph this evening. Breezy winds up to 25 mph will continue through the evening hours in the valleys, eventually decreasing substantially overnight. $$ IDZ011-013-014-029-180045- /O.EXP.KBOI.WI.Y.0019.000000T0000Z-251218T0000Z/ West Central Mountains-Boise Mountains-Upper Treasure Valley- Owyhee Mountains- Including the cities of Pine, Cascade, McCall, Boise, Reynolds, Silver City, Big Creek, Warm Lake, Cuprum, Anderson Dam, Prairie, Bear, and Ola 445 PM MST Wed Dec 17 2025 ...WIND ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON... The strongest winds have subsided for the majority of the area with some ridgetops still seeing gusty winds up to 35 mph this evening. Breezy winds up to 25 mph will continue through the evening hours, calming substantially overnight. $$ SA
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 Boise, ID wrote its last area forecast discussion before this high wind warning went out at Dec 15, 2:45 PM MST, 5 hours 38 minutes earlier.
Area forecast discussion, Dec 15, 2:45 PM MST, 5 hours 38 minutes before
Area Forecast Discussion
National Weather Service Boise ID
245 PM MST Mon Dec 15 2025
.SHORT TERM...Tonight through Wednesday night...At 2 PM MST a
weak cold front was in western ID with a band of light rain
extending north-south along the OR/ID border. The front was
moving steadily east with slightly more pcpn than models
predicted but should total less than .15 inch even in the
wettest locations. The front will stir up the stagnant air
but not enough to end the Air Stagnation Advisory which will
continue until 5 AM Tuesday. Clouds and light winds will
moderate low temps tonight, and increasing southeast winds
will boost max temps to near record highs Tuesday. Tuesday
night will be windy and very mild ahead of a very strong
Pacific cold front due in the pre-dawn hours Wednesday in OR,
and early Wednesday morning in western ID. South/southeast
winds will shift abruptly to west/northwest as the front passes
and increase to 30 to 40 mph with possible gusts as high as 60
mph in southern zones. A High Wind Watch has been issued in
those zones (listed below) for Wednesday morning in OR and
through 2 PM MST Wednesday afternoon in western ID. Strongest
winds are expected in the western Magic Valley and Camas
Prairie. Pcpn will be heavier with the strong cold front with
greatest amounts (near 1.00 inch) in eastern Valley County and
northern Elmore County in ID late Tuesday night through late
Wednesday night. Heaviest pcpn will fall as the cold front
passes and may result in rock slides in steep terrain. Travelers
would be wise to avoid the Banks-Lowman road in ID and be wary
on ID state highway 21 northeast of Idaho City. The rest of ID
north of the Snake Basin should have .25 to .50 inch liquid
equivalent, while southern areas including the Snake Basin
receive .10 to .25 inch, with similar amounts in eastern OR. The
snow level will lower rapidly to valley floors later Wednesday
in northern zones and to near 5000 feet in southern zones.
Snowfall 3 to 6 inches is expected in the higher ID mountains
late Wednesday through Wednesday evening. Wednesday night
should be calming, drying, and significantly cooling.
.LONG TERM...Thursday through Monday...Precipitation chances
continue through the extended, with a hefty push during Thursday,
Friday, and early Saturday. This comes as another atmospheric river
event impacts the Pacific NW from an elongated disturbance, courtesy
of the Gulf of Alaska low. A strong, westerly mid-level jet will
accompany this disturbance. As a result, this system will pull
in a long fetch of considerable subtropical moisture, spreading
moderate/heavy precipitation into the area. Snow levels will
oscillate quite a bit during this period, associated with the
tight temperature gradient, making snowfall accumulations a
significant forecast challenge during this period. Overall,
snow levels are expected to be lowest across the north,
gradually rising from south to north throughout the day
Thursday. Snow levels will then gradually lower from north
to south as a cold front moves in late Friday/early Saturday.
Overall, mountains could see 1 to 2 inches of liquid equivalent
throughout this period, along with snowfall totals 1 to 2 feet
at the ridgetops (depending heavily on the snow level). The
period of rainfall over saturated, steep terrain will also
introduce rockslide concerns.
In addition to precipitation, strong surface winds are expected
to develop across much of the area, particularly Friday, ahead
of/along the cold front. Gusts will be strongest across southeast
Oregon, the ID/NV border, and the mountains of southwest Idaho.
Meanwhile, temperatures are forecast to stay above normal
Thursday and Friday, with the coldest air expected across
west-central/central Idaho and eastern Oregon.
Once the aforementioned system exits, there will be a brief
respite from precipitation late Saturday into Sunday morning.
This will occur before yet another push of precipitation comes
ahead of a upper-level long wave trough slowly moving inland
Sunday and Monday. Models currently disagree on how much of the
polar air to the north will penetrate E Oregon and SW Idaho,
resulting in poor forecast confidence on temperatures and snow
levels this far out. Regardless, ample moisture will yield a
new round of notable precipitation amounts for the area, with
upslope flow favoring the mountains of west-central/central
Idaho once again.
&&
.AVIATION...Periods of MVFR in precipitation/low ceilings.
Scattered showers will move from NW to SE today, decreasing by
Tuesday AM. Snow levels 7-9 kft MSL falling to 6-8 kft MSL by
Tuesday AM. Mountains obscured. Periods of LLWS in E Oregon Monday
into Tuesday. Surface winds: light/variable, then SW-SE 5-15 kt
this PM. Gusts of 20-25 kt in SE Oregon and near NV/ID border.
Winds aloft at 10kft MSL: W 25-45 kt.
KBOI...VFR. A 15-30% chance of light rain this afternoon and
evening. Surface winds: SE 4-9 kt
&&
.BOI WATCHES/WARNINGS/ADVISORIES...
ID...Air Stagnation Advisory until 5 AM MST Tuesday
IDZ011>014-016-028-033.
High Wind Watch from late Tuesday night through Wednesday
afternoon IDZ012-014>016-028>030.
OR...Air Stagnation Advisory until 5 AM MST /4 AM PST/ Tuesday
ORZ061>064.
High Wind Watch from late Tuesday night through Wednesday
afternoon ORZ064.
High Wind Watch from late Tuesday night through Wednesday
morning ORZ061>063.
&&
www.weather.gov/Boise
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SHORT TERM...LC
LONG TERM....CH
AVIATION.....CHThe office that day
Everything else NWS Boise, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 15, 8:23 PM MST | Wind Advisory | BOI | Ada, Adams, Boise, Camas, Canyon, Elmore and 8 more | 45 hr |
| Dec 16, 12:48 PM MST | Winter Storm Watch | BOI | Adams, Boise, Camas, Elmore, Gem, Valley and 1 more | 24 hr |
Nearby
High Wind Warnings in Idaho, 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.