Alert archive / Idaho / Wind Advisories in 2021
Wind Advisory 7, NWS Pocatello, ID
NWS Pocatello, ID issued this wind advisory at Feb 22, 2021, 1:13 PM MST for 6 counties in Idaho. It took effect at Feb 23, 2021, 3:00 AM MST. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Feb 22, 2021, 1:13 PM MST (20:13 UTC)
- In effect from
- Feb 23, 2021, 3:00 AM MST
- Expired
- Feb 23, 2021, 1:04 PM MST
- In force
- 10 hr
- Issued by
- NWS Pocatello, ID
Counties Bannock County, ID, Bear Lake County, ID, Bingham County, ID, Bonneville County, ID, Caribou County, ID, Power County, ID
The radar
The Pocatello radar (KSFX), 64 km from the middle of the area, began a volume at 20:13 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.
The nearest sounding before it
Salt Lake City I, UT (KSLC), launched 12:00Z, 8.2 hours before the alert went out and 229 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
- 1660 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 252 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
095 WWUS75 KPIH 222013 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 113 PM MST Mon Feb 22 2021 IDZ054-058-062-063-231200- /O.NEW.KPIH.WI.Y.0007.210223T1000Z-210224T0300Z/ Lower Snake River Plain-Marsh and Arbon Highlands- Blackfoot Mountains-Caribou Range- Including the cities of Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Inkom, McCammon, Downey, Lava Hot Springs, Grace, Soda Springs, Henry, Bone, Wayan, and Swan Valley 113 PM MST Mon Feb 22 2021 ...WIND ADVISORY IN EFFECT FROM 3 AM TO 8 PM TUESDAY... * WHAT...Southwest winds 20 to 30 MPH with gusts of 35 to 45 MPH expected. * WHERE...The lower Snake River Plain into the adjacent Marsh and Albion Highlands, Blackfoot Mountains, and Caribou Highlands, including but not limited to American Falls, Aberdeen, Pocatello, Blackfoot, McCammon, Downey, and Soda Springs. This includes portions of Interstate 86 and Interstate 15, as well as Shoshone Bannock tribal lands. * WHEN...From 3 AM to 8 PM Tuesday. * IMPACTS...Pockets of blowing and drifting snow may create slick spots and reduced visibility on area roads. Gusty winds could also blow around unsecured objects and create difficult driving conditions for high-profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle, and be prepared to suddenly encounter pockets of blowing and drifting snow resulting in slick spots and reduced visibility on roads. Secure loose outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/pocatello KSmith
2 follow-up statements
280 WWUS75 KPIH 230930 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 230 AM MST Tue Feb 23 2021 IDZ054-058-062-063-240300- /O.CON.KPIH.WI.Y.0007.210223T1000Z-210224T0300Z/ Lower Snake River Plain-Marsh and Arbon Highlands- Blackfoot Mountains-Caribou Range- Including the cities of Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Inkom, McCammon, Downey, Lava Hot Springs, Grace, Soda Springs, Henry, Bone, Wayan, and Swan Valley 230 AM MST Tue Feb 23 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Southwest winds 20 to 30 MPH with gusts of 35 to 45 MPH expected. * WHERE...The lower Snake River Plain into the adjacent Marsh and Albion Highlands, Blackfoot Mountains, and Caribou Highlands, including but not limited to American Falls, Aberdeen, Pocatello, Blackfoot, McCammon, Downey, and Soda Springs. This includes portions of Interstate 86 and Interstate 15, as well as Shoshone Bannock tribal lands. * WHEN...From 3 AM to 8 PM Tuesday. * IMPACTS...Pockets of blowing and drifting snow may create slick spots and reduced visibility on area roads. Gusty winds could also blow around unsecured objects and create difficult driving conditions for high-profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/pocatello
210 WWUS75 KPIH 232004 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 104 PM MST Tue Feb 23 2021 IDZ054-058-062-063-232115- /O.CAN.KPIH.WI.Y.0007.000000T0000Z-210224T0300Z/ Lower Snake River Plain-Marsh and Arbon Highlands- Blackfoot Mountains-Caribou Range- Including the cities of Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Inkom, McCammon, Downey, Lava Hot Springs, Grace, Soda Springs, Henry, Bone, Wayan, and Swan Valley 104 PM MST Tue Feb 23 2021 ...WIND ADVISORY IS CANCELLED... The period of strongest winds has passed, and both sustained wind speeds and wind gusts have dropped below advisory criteria across the Lower Snake River Plain, adjacent Marsh/Albion Highlands, Blackfoot Range, and Caribou Highlands. Thus, the advisory is cancelled. Expect southwest winds of 15 to 25 MPH gusting to 35 MPH to continue this afternoon, very slowly decreasing between 3 PM and 7 PM. Pockets of blowing/drifting snow on roadways are still possible and could create a few slick spots with low visibility. $$ For more information from the National Weather Service visit https://weather.gov/pocatello KSmith
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 3:10 AM MST | Winter Weather Advisory | PIH | Bonneville, Clark, Fremont, Madison, Teton | 41 hr |
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.