Alert archive / Idaho / Wind Advisories in 2021
Wind Advisory 17, NWS Pocatello, ID
NWS Pocatello, ID issued this wind advisory at May 8, 2021, 3:26 AM MDT for 6 counties in Idaho. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- May 8, 2021, 3:26 AM MDT (09:26 UTC)
- Expired
- May 8, 2021, 1:34 PM MDT
- In force
- 10 hr
- Issued by
- NWS Pocatello, ID
Counties Bannock County, ID, Bingham County, ID, Blaine County, ID, Cassia County, ID, Minidoka County, ID, Power County, ID
The radar
The Pocatello radar (KSFX), 45 km from the middle of the area, began a volume at 09:26 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.
The nearest sounding before it
Elko, NV (KLKN), launched 00:00Z, 9.4 hours before the alert went out and 238 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
- 3 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 3045 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
841 WWUS75 KPIH 080926 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 326 AM MDT Sat May 8 2021 IDZ054-055-082100- /O.NEW.KPIH.WI.Y.0017.210508T0926Z-210509T0200Z/ /O.NEW.KPIH.FZ.A.0001.210509T0900Z-210509T1500Z/ Lower Snake River Plain-Eastern Magic Valley- Including the cities of Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Burley, Rupert, Heyburn, and Oakley 326 AM MDT Sat May 8 2021 ...WIND ADVISORY IN EFFECT UNTIL 8 PM MDT THIS EVENING... ...FREEZE WATCH IN EFFECT SUNDAY MORNING from 3 AM MDT to 9 AM MDT... * WHAT...For the Wind Advisory, west winds 20 to 30 mph with gusts up to 45 mph. For the Freeze Watch, sub-freezing temperatures as low as 30 possible. * WHERE...Pocatello, Blackfoot, American Falls, Shelley, Forth Hall, Burley, Rupert, Heyburn and Oakley. * WHEN...For the Wind Advisory, until 8 PM MDT this evening. For the Freeze Watch, Sunday morning, from around 3 AM MDT to 9 AM MDT. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. && $$ IDZ051>053-082100- /O.NEW.KPIH.FZ.A.0001.210509T0900Z-210509T1500Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain- Including the cities of Shoshone, Richfield, Carey, Mud Lake, INL, Craters of the Moon NM, Idaho Falls, Rexburg, and St. Anthony 326 AM MDT Sat May 8 2021 ...FREEZE WATCH IN EFFECT SUNDAY MORNING from 3 AM MDT to 9 AM MDT... * WHAT...Sub-freezing temperatures as low as 28 possible. * WHERE...Arco Desert, Shoshone, Richfield, Carey, Mud lake, INL, Craters of the Moon, Idaho Falls, Rexburg, and St Anthony. * WHEN...Sunday morning from around 3 AM MDT to 9 AM MDT. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. && $$ For more information from the National Weather Service visit https://weather.gov/pocatello
1 follow-up statement
097 WWUS75 KPIH 081934 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 134 PM MDT Sat May 8 2021 IDZ054-055-091030- /O.CAN.KPIH.WI.Y.0017.000000T0000Z-210509T0200Z/ /O.UPG.KPIH.FZ.A.0001.210509T0900Z-210509T1500Z/ /O.NEW.KPIH.FR.Y.0002.210509T0900Z-210509T1500Z/ Lower Snake River Plain-Eastern Magic Valley- Including the cities of Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Burley, Rupert, Heyburn, and Oakley 134 PM MDT Sat May 8 2021 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM MDT SUNDAY... ...WIND ADVISORY IS CANCELLED... * WHAT...Temperatures around freezing may result in frost formation. * WHERE...The Eastern Magic Valley and Lower Snake River Plain, from Burley and Rupert to Pocatello, Fort Hall and Blackfoot. * WHEN...From 3 AM to 9 AM MDT Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...A few sheltered locations may see temperatures dip below freezing, which would be a Hard Freeze. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ IDZ051>053-091030- /O.UPG.KPIH.FZ.A.0001.210509T0900Z-210509T1500Z/ /O.NEW.KPIH.FZ.W.0001.210509T0900Z-210509T1500Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain- Including the cities of Shoshone, Richfield, Carey, Mud Lake, INL, Craters of the Moon NM, Idaho Falls, Rexburg, and St. Anthony 134 PM MDT Sat May 8 2021 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM MDT SUNDAY... * WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...Shoshone northeast to the Arco Desert, and then east through the Upper Snake River Plain, including. * WHEN...From 3 AM to 9 AM MDT Sunday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...A few sheltered locations may see minimum temperatures dip just below 28 degrees, which would be a Hard Freeze. The areas with the greatest potential for this include the region from Mud Lake to Rexburg and St. Anthony. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ For more information from the National Weather Service visit https://weather.gov/pocatello
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 6:23 PM MDT | Special Weather Statement | PIH | Bear Lake | 82 min |
| May 8, 3:26 AM MDT | Freeze Watch | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Cassia and 6 more | 10 hr |
| May 8, 1:34 PM MDT | Frost Advisory | PIH | Bannock, Bingham, Blaine, Cassia, Minidoka, Power | 19 hr |
| May 8, 1:34 PM MDT | Freeze Warning | PIH | Bannock, Bingham, Blaine, Bonneville, Butte, Fremont and 5 more | 19 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.