Alert archive / Idaho / Freeze Warnings in 2021
Freeze Warning 3, NWS Pocatello, ID
NWS Pocatello, ID issued this freeze warning at Sep 28, 2021, 4:35 AM MDT for 12 counties in Idaho. It took effect at Sep 29, 2021, 1:00 AM MDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 28, 2021, 4:35 AM MDT (10:35 UTC)
- In effect from
- Sep 29, 2021, 1:00 AM MDT
- Expired
- Sep 29, 2021, 9:58 AM MDT
- In force
- 9 hr
- Issued by
- NWS Pocatello, ID
Counties Bannock County, ID, Bingham County, ID, Blaine County, ID, Bonneville County, ID, Butte County, ID, Cassia County, ID, Fremont County, ID, Jefferson County, ID, Lincoln County, ID, Madison County, ID, Minidoka County, ID, Power County, ID
The radar
The Pocatello radar (KSFX), 18 km from the middle of the area, began a volume at 10:34 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
Boise Airport, ID (KBOI), launched 00:00Z, 10.6 hours before the alert went out and 280 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
- 4162 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
374 WWUS75 KPIH 281035 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 435 AM MDT Tue Sep 28 2021 IDZ051>055-282100- /O.UPG.KPIH.FZ.A.0003.210929T0900Z-210929T1500Z/ /O.NEW.KPIH.FZ.W.0003.210929T0700Z-210929T1600Z/ /O.CON.KPIH.WI.Y.0025.210928T1300Z-210929T0000Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain- Lower Snake River Plain-Eastern Magic Valley- Including the cities of Shoshone, Richfield, Carey, Mud Lake, INL, Craters of the Moon NM, Idaho Falls, Rexburg, St. Anthony, Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Burley, Rupert, Heyburn, and Oakley 435 AM MDT Tue Sep 28 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... ...FREEZE WARNING IN EFFECT FROM 1 AM TO 10 AM MDT WEDNESDAY... * WHAT...For the Wind Advisory, southwest winds 25 to 35 mph with gusts up to 50 mph expected. For the Freeze Warning, sub- freezing temperatures as low as 29 expected. * WHERE...Upper and Lower Snake River Plain, Arco Desert, and the Eastern Magic Valley. * WHEN...For the Wind Advisory, until 6 PM MDT this evening. For the Freeze Warning, from 1 AM to 10 AM MDT Wednesday. * IMPACTS...Gusty winds could make driving difficult, especially for high profile vehicles. Unsecured objects may be blown around. Frost and freeze conditions will 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. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ IDZ056-057-282100- /O.EXA.KPIH.WI.Y.0025.210928T1300Z-210929T0000Z/ Southern Hills/Albion Mountains-Raft River Region- Including the cities of Albion, Almo, Malta, Rockland, and Holbrook 435 AM MDT Tue Sep 28 2021 ...WIND ADVISORY IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...For the Wind Advisory, southwest winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Southern Highlands including Southern Hills/Albion mountains and the Raft River region. * WHEN...For the Wind Advisory, from 7 AM to 6 PM MDT Tuesday. * IMPACTS...Gusty winds could make driving difficult, especially for high profile vehicles. Unsecured objects may be blown around. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/pocatello
4 follow-up statements
181 WWUS75 KPIH 282100 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 300 PM MDT Tue Sep 28 2021 IDZ051>055-290630- /O.CON.KPIH.FZ.W.0003.210929T0700Z-210929T1600Z/ /O.CON.KPIH.WI.Y.0025.000000T0000Z-210929T0000Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain- Lower Snake River Plain-Eastern Magic Valley- Including the cities of Shoshone, Richfield, Carey, Mud Lake, INL, Craters of the Moon NM, Idaho Falls, Rexburg, St. Anthony, Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Burley, Rupert, Heyburn, and Oakley 300 PM MDT Tue Sep 28 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 10 AM MDT WEDNESDAY... * WHAT...For the Wind Advisory, southwest winds 25 to 35 mph with gusts up to 50 mph expected. For the Freeze Warning, sub- freezing temperatures as low as 29 expected. * WHERE...Upper and Lower Snake River Plain, Arco Desert, and the Eastern Magic Valley. * WHEN...For the Wind Advisory, until 6 PM MDT this evening. For the Freeze Warning, from 1 AM to 10 AM MDT Wednesday. * IMPACTS...Gusty winds could make driving difficult, especially for high profile vehicles. Unsecured objects may be blown around. Frost and freeze conditions will 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. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ IDZ056-057-290000- /O.CON.KPIH.WI.Y.0025.000000T0000Z-210929T0000Z/ Southern Hills/Albion Mountains-Raft River Region- Including the cities of Albion, Almo, Malta, Rockland, and Holbrook 300 PM MDT Tue Sep 28 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...For the Wind Advisory, southwest winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Southern Highlands including Southern Hills/Albion mountains and the Raft River region. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Gusty winds could make driving difficult, especially for high profile vehicles. Unsecured objects may be blown around. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/pocatello
248 WWUS75 KPIH 290001 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 601 PM MDT Tue Sep 28 2021 IDZ051>055-290815- /O.EXP.KPIH.WI.Y.0025.000000T0000Z-210929T0000Z/ /O.CON.KPIH.FZ.W.0003.210929T0700Z-210929T1600Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain- Lower Snake River Plain-Eastern Magic Valley- Including the cities of Shoshone, Richfield, Carey, Mud Lake, INL, Craters of the Moon NM, Idaho Falls, Rexburg, St. Anthony, Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Burley, Rupert, Heyburn, and Oakley 601 PM MDT Tue Sep 28 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 10 AM MDT WEDNESDAY... ...WIND ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING... * WHAT...For the Wind Advisory, wind speeds have begun to subside and are expected to fall below advisory levels within the hour. For the Freeze Warning, sub-freezing temperatures as low as 29 are expected. * WHERE...Upper and Lower Snake River Plain, Arco Desert, and the Eastern Magic Valley. * WHEN...For the Freeze Warning, from 1 AM to 10 AM MDT Wednesday. * IMPACTS...Frost and freeze conditions may kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ IDZ056-057-290115- /O.EXP.KPIH.WI.Y.0025.000000T0000Z-210929T0000Z/ Southern Hills/Albion Mountains-Raft River Region- Including the cities of Albion, Almo, Malta, Rockland, and Holbrook 601 PM MDT Tue Sep 28 2021 ...WIND ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING... Wind speeds have begun to subside and are expected to fall below advisory levels within the hour. $$ For more information from the National Weather Service visit https://weather.gov/pocatello
018 WWUS75 KPIH 290704 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 104 AM MDT Wed Sep 29 2021 IDZ051>055-291600- /O.CON.KPIH.FZ.W.0003.000000T0000Z-210929T1600Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain- Lower Snake River Plain-Eastern Magic Valley- Including the cities of Shoshone, Richfield, Carey, Mud Lake, INL, Craters of the Moon NM, Idaho Falls, Rexburg, St. Anthony, Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Burley, Rupert, Heyburn, and Oakley 104 AM MDT Wed Sep 29 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM MDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 29 are expected. * WHERE...Upper and Lower Snake River Plain, Arco Desert, and the Eastern Magic Valley. * WHEN...Through 10 AM MDT Wednesday. * IMPACTS...Frost and freeze conditions may kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/pocatello
364 WWUS75 KPIH 291558 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 958 AM MDT Wed Sep 29 2021 IDZ051>055-301200- /O.CAN.KPIH.FZ.W.0003.000000T0000Z-210929T1600Z/ /O.NEW.KPIH.FZ.W.0004.210930T0700Z-210930T1600Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain- Lower Snake River Plain-Eastern Magic Valley- Including the cities of Shoshone, Richfield, Carey, Mud Lake, INL, Craters of the Moon NM, Idaho Falls, Rexburg, St. Anthony, Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Burley, Rupert, Heyburn, and Oakley 958 AM MDT Wed Sep 29 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 10 AM MDT THURSDAY... * WHAT...Sub-freezing temperatures as low as 24 especially across the Upper Snake and Arco Desert. In the lower Snake Plain and Magic Valley sub-freezing temperatures as low as 27. * WHERE...Upper and Lower Snake River Plain, Arco Desert, and the Eastern Magic Valley. * WHEN...From 1 AM to 10 AM MDT Thursday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Overnight low temperatures tonight will likely result in a prolonged, hard-freeze, especially across the Upper Snake and Arco Desert, resulting in a season ending freeze event for the growing region. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ For more information from the National Weather Service visit https://weather.gov/pocatello
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.