|
Home Return to list Frost Advisory 0008 Issued by the Pocatello Forecast Office
Action: New Issued At: 2026-05-21 02:03:18 849 WWUS75 KPIH 210703 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 103 AM MDT Thu May 21 2026 IDZ054-212115- /O.NEW.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ /O.CON.KPIH.LW.Y.0007.260521T1700Z-260522T0300Z/ Lower Snake River Plain- Including the cities of Pocatello, American Falls, Blackfoot, Shelley, and Fort Hall 103 AM MDT Thu May 21 2026 ...LAKE WIND ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...For the Lake Wind Advisory for American Falls Reservoir, north winds 10 to 15 mph with gusts up to 25 mph expected. For the Frost Advisory, temperatures of 32 to 36 degrees will result in frost formation. More rural areas could briefly drop to 30, while areas along I 15 may stay above 36. * WHERE...Lower Snake River Plain. * WHEN...For the Lake Wind Advisory, from 11 AM this morning to 9 PM MDT this evening. For the Frost Advisory, from 3 AM to 9 AM MDT Friday. * IMPACTS...Strong winds and rough waves on area lakes, including American Falls Reservoir, will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. && $$ IDZ052-053-212115- /O.NEW.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Arco/Mud Lake Desert-Upper Snake River Plain- Including the cities of St. Anthony, INL, Idaho Falls, Craters of the Moon NM, Rexburg, and Mud Lake 103 AM MDT Thu May 21 2026 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...Temperatures of 32 to 36 will result in frost formation. Isolated rural areas could briefly drop to 30 degrees. * WHERE...Arco/Mud Lake Desert and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. JKeyes Action: New Issued At: 2026-05-21 02:03:18 849 WWUS75 KPIH 210703 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 103 AM MDT Thu May 21 2026 IDZ054-212115- /O.NEW.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ /O.CON.KPIH.LW.Y.0007.260521T1700Z-260522T0300Z/ Lower Snake River Plain- Including the cities of Pocatello, American Falls, Blackfoot, Shelley, and Fort Hall 103 AM MDT Thu May 21 2026 ...LAKE WIND ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...For the Lake Wind Advisory for American Falls Reservoir, north winds 10 to 15 mph with gusts up to 25 mph expected. For the Frost Advisory, temperatures of 32 to 36 degrees will result in frost formation. More rural areas could briefly drop to 30, while areas along I 15 may stay above 36. * WHERE...Lower Snake River Plain. * WHEN...For the Lake Wind Advisory, from 11 AM this morning to 9 PM MDT this evening. For the Frost Advisory, from 3 AM to 9 AM MDT Friday. * IMPACTS...Strong winds and rough waves on area lakes, including American Falls Reservoir, will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. && $$ IDZ052-053-212115- /O.NEW.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Arco/Mud Lake Desert-Upper Snake River Plain- Including the cities of St. Anthony, INL, Idaho Falls, Craters of the Moon NM, Rexburg, and Mud Lake 103 AM MDT Thu May 21 2026 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...Temperatures of 32 to 36 will result in frost formation. Isolated rural areas could briefly drop to 30 degrees. * WHERE...Arco/Mud Lake Desert and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. JKeyes Action: Continued Issued At: 2026-05-21 06:51:10 711 WWUS75 KPIH 211150 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 550 AM MDT Thu May 21 2026 IDZ054-212100- /O.EXT.KPIH.LW.Y.0007.260521T1200Z-260522T0300Z/ /O.CON.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Lower Snake River Plain- Including the cities of Pocatello, American Falls, Blackfoot, Shelley, and Fort Hall 550 AM MDT Thu May 21 2026 ...LAKE WIND ADVISORY NOW IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...For the Lake Wind Advisory for American Falls Reservoir, north winds 10 to 15 mph with gusts up to 25 mph expected. Higher gusts are possible with showers and thunderstorms. For the Frost Advisory, temperatures of 32 to 36 degrees will result in frost formation. More rural areas could briefly drop to 30, while areas along I 15 may stay above 36. * WHERE...Lower Snake River Plain. * WHEN...For the Lake Wind Advisory, until 9 PM MDT this evening. For the Frost Advisory, from 3 AM to 9 AM MDT Friday. * IMPACTS...Strong winds and rough waves on area lakes, including American Falls Reservoir, will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. && $$ IDZ052-053-212100- /O.CON.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Arco/Mud Lake Desert-Upper Snake River Plain- Including the cities of St. Anthony, INL, Idaho Falls, Craters of the Moon NM, Rexburg, and Mud Lake 550 AM MDT Thu May 21 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...Temperatures of 32 to 36 will result in frost formation. Isolated rural areas could briefly drop to 30 degrees. * WHERE...Arco/Mud Lake Desert and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. Keyes Action: Continued Issued At: 2026-05-21 06:51:10 711 WWUS75 KPIH 211150 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 550 AM MDT Thu May 21 2026 IDZ054-212100- /O.EXT.KPIH.LW.Y.0007.260521T1200Z-260522T0300Z/ /O.CON.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Lower Snake River Plain- Including the cities of Pocatello, American Falls, Blackfoot, Shelley, and Fort Hall 550 AM MDT Thu May 21 2026 ...LAKE WIND ADVISORY NOW IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...For the Lake Wind Advisory for American Falls Reservoir, north winds 10 to 15 mph with gusts up to 25 mph expected. Higher gusts are possible with showers and thunderstorms. For the Frost Advisory, temperatures of 32 to 36 degrees will result in frost formation. More rural areas could briefly drop to 30, while areas along I 15 may stay above 36. * WHERE...Lower Snake River Plain. * WHEN...For the Lake Wind Advisory, until 9 PM MDT this evening. For the Frost Advisory, from 3 AM to 9 AM MDT Friday. * IMPACTS...Strong winds and rough waves on area lakes, including American Falls Reservoir, will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. && $$ IDZ052-053-212100- /O.CON.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Arco/Mud Lake Desert-Upper Snake River Plain- Including the cities of St. Anthony, INL, Idaho Falls, Craters of the Moon NM, Rexburg, and Mud Lake 550 AM MDT Thu May 21 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...Temperatures of 32 to 36 will result in frost formation. Isolated rural areas could briefly drop to 30 degrees. * WHERE...Arco/Mud Lake Desert and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. Keyes Action: Continued Issued At: 2026-05-21 14:22:59 961 WWUS75 KPIH 211922 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 122 PM MDT Thu May 21 2026 IDZ054-220330- /O.CON.KPIH.LW.Y.0007.000000T0000Z-260522T0300Z/ /O.CON.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Lower Snake River Plain- Including the cities of Fort Hall, Pocatello, American Falls, Shelley, and Blackfoot 122 PM MDT Thu May 21 2026 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...For the Lake Wind Advisory for American Falls Reservoir, north winds 10 to 15 mph with gusts up to 25 mph expected. Higher gusts are possible with showers and thunderstorms. For the Frost Advisory, temperatures of 32 to 36 degrees will result in frost formation. More rural areas could briefly drop to 30, while areas along I 15 may stay above 36. * WHERE...Lower Snake River Plain. * WHEN...For the Lake Wind Advisory, until 9 PM MDT this evening. For the Frost Advisory, from 3 AM to 9 AM MDT Friday. * IMPACTS...Strong winds and rough waves on area lakes, including American Falls Reservoir, will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. && $$ IDZ052-053-220330- /O.CON.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Arco/Mud Lake Desert-Upper Snake River Plain- Including the cities of Craters of the Moon NM, Idaho Falls, St. Anthony, Rexburg, Mud Lake, and INL 122 PM MDT Thu May 21 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...Temperatures of 32 to 36 will result in frost formation. Isolated rural areas could briefly drop to 30 degrees. * WHERE...Arco/Mud Lake Desert and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Friday. * IMPACTS...Strong winds and rough waves on area lakes, including American Falls Reservoir, will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. DMH Action: Continued Issued At: 2026-05-21 14:22:59 961 WWUS75 KPIH 211922 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 122 PM MDT Thu May 21 2026 IDZ054-220330- /O.CON.KPIH.LW.Y.0007.000000T0000Z-260522T0300Z/ /O.CON.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Lower Snake River Plain- Including the cities of Fort Hall, Pocatello, American Falls, Shelley, and Blackfoot 122 PM MDT Thu May 21 2026 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...For the Lake Wind Advisory for American Falls Reservoir, north winds 10 to 15 mph with gusts up to 25 mph expected. Higher gusts are possible with showers and thunderstorms. For the Frost Advisory, temperatures of 32 to 36 degrees will result in frost formation. More rural areas could briefly drop to 30, while areas along I 15 may stay above 36. * WHERE...Lower Snake River Plain. * WHEN...For the Lake Wind Advisory, until 9 PM MDT this evening. For the Frost Advisory, from 3 AM to 9 AM MDT Friday. * IMPACTS...Strong winds and rough waves on area lakes, including American Falls Reservoir, will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. && $$ IDZ052-053-220330- /O.CON.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Arco/Mud Lake Desert-Upper Snake River Plain- Including the cities of Craters of the Moon NM, Idaho Falls, St. Anthony, Rexburg, Mud Lake, and INL 122 PM MDT Thu May 21 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...Temperatures of 32 to 36 will result in frost formation. Isolated rural areas could briefly drop to 30 degrees. * WHERE...Arco/Mud Lake Desert and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Friday. * IMPACTS...Strong winds and rough waves on area lakes, including American Falls Reservoir, will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. DMH Action: Continued Issued At: 2026-05-21 21:34:45 546 WWUS75 KPIH 220234 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 834 PM MDT Thu May 21 2026 IDZ054-221200- /O.EXP.KPIH.LW.Y.0007.000000T0000Z-260522T0300Z/ /O.CON.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Lower Snake River Plain- Including the cities of Blackfoot, Shelley, American Falls, Pocatello, and Fort Hall 834 PM MDT Thu May 21 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... ...LAKE WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING... * WHAT...Temperatures of 32 to 36 degrees will result in frost formation. * WHERE...Lower Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ IDZ052-053-221200- /O.CON.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Arco/Mud Lake Desert-Upper Snake River Plain- Including the cities of INL, Rexburg, St. Anthony, Mud Lake, Craters of the Moon NM, and Idaho Falls 834 PM MDT Thu May 21 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...Temperatures of 32 to 36 degrees will result in frost formation. * WHERE...Arco/Mud Lake Desert and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. 13 Action: Continued Issued At: 2026-05-21 21:34:45 546 WWUS75 KPIH 220234 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 834 PM MDT Thu May 21 2026 IDZ054-221200- /O.EXP.KPIH.LW.Y.0007.000000T0000Z-260522T0300Z/ /O.CON.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Lower Snake River Plain- Including the cities of Blackfoot, Shelley, American Falls, Pocatello, and Fort Hall 834 PM MDT Thu May 21 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... ...LAKE WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING... * WHAT...Temperatures of 32 to 36 degrees will result in frost formation. * WHERE...Lower Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ IDZ052-053-221200- /O.CON.KPIH.FR.Y.0008.260522T0900Z-260522T1500Z/ Arco/Mud Lake Desert-Upper Snake River Plain- Including the cities of INL, Rexburg, St. Anthony, Mud Lake, Craters of the Moon NM, and Idaho Falls 834 PM MDT Thu May 21 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... * WHAT...Temperatures of 32 to 36 degrees will result in frost formation. * WHERE...Arco/Mud Lake Desert and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. 13 Action: Continued Issued At: 2026-05-22 05:13:06 707 WWUS75 KPIH 221012 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 412 AM MDT Fri May 22 2026 IDZ052>054-221500- /O.CON.KPIH.FR.Y.0008.000000T0000Z-260522T1500Z/ Arco/Mud Lake Desert-Upper Snake River Plain-Lower Snake River Plain- Including the cities of Idaho Falls, Shelley, Blackfoot, St. Anthony, INL, Rexburg, Craters of the Moon NM, Fort Hall, American Falls, Mud Lake, and Pocatello 412 AM MDT Fri May 22 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...Temperatures of 32 to 36 degrees will result in frost formation. More remote locations may drop to around 30 degrees. * WHERE...Arco/Mud Lake Desert, Lower Snake River Plain, and Upper Snake River Plain. * WHEN...Until 9 AM MDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. JKeyes Action: Expired Issued At: 2026-05-22 09:58:46 745 WWUS75 KPIH 221458 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 858 AM MDT Fri May 22 2026 IDZ052>054-221600- /O.EXP.KPIH.FR.Y.0008.000000T0000Z-260522T1500Z/ Arco/Mud Lake Desert-Upper Snake River Plain-Lower Snake River Plain- Including the cities of St. Anthony, INL, American Falls, Rexburg, Blackfoot, Idaho Falls, Fort Hall, Mud Lake, Craters of the Moon NM, Pocatello, and Shelley 858 AM MDT Fri May 22 2026 ...FROST ADVISORY WILL EXPIRE AT 9 AM MDT THIS MORNING... Temperatures have warmed significantly early this morning, and the Frost Advisory will be allowed to expire. $$ Visit weather.gov/pocatello for more information. DMH | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||