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Home Return to list Frost Advisory 0005 Issued by the Pocatello Forecast Office
Action: New Issued At: 2026-05-17 13:18:23 239 WWUS75 KPIH 171818 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 1218 PM MDT Sun May 17 2026 IDZ051-052-180330- /O.NEW.KPIH.FZ.W.0015.260518T0900Z-260518T1500Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert- Including the cities of INL, Carey, Mud Lake, Richfield, Shoshone, and Craters of the Moon NM 1218 PM MDT Sun May 17 2026 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...Sub-freezing temperatures 28 to 32 expected. * WHERE...Shoshone/Lava Beds and Arco/Mud Lake Desert. * WHEN...From 3 AM to 9 AM MDT Monday. * 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. && $$ IDZ054-180330- /O.NEW.KPIH.FR.Y.0005.260518T0900Z-260518T1500Z/ /O.CON.KPIH.LW.Y.0005.260517T2100Z-260518T0300Z/ Lower Snake River Plain- Including the cities of American Falls, Blackfoot, Fort Hall, Pocatello, and Shelley 1218 PM MDT Sun May 17 2026 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...For the Lake Wind Advisory for American Falls Reservoir, north winds 10 to 20 mph with gusts up to 30 mph expected. For the Frost Advisory, temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36 tonight. * WHERE...Lower Snake River Plain. * WHEN...For the Lake Wind Advisory, until 9 PM MDT this evening. For the Frost Advisory, from 3 AM to 9 AM MDT Monday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. && $$ IDZ053-055-180330- /O.NEW.KPIH.FR.Y.0005.260518T0900Z-260518T1500Z/ Upper Snake River Plain-Eastern Magic Valley- Including the cities of Rupert, Rexburg, Idaho Falls, Burley, Oakley, Heyburn, and St. Anthony 1218 PM MDT Sun May 17 2026 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...Temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36 tonight. * WHERE...Eastern Magic Valley and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Monday. * 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. && $$ Visit weather.gov/pocatello for more information. DMH Action: New Issued At: 2026-05-17 13:18:23 239 WWUS75 KPIH 171818 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 1218 PM MDT Sun May 17 2026 IDZ051-052-180330- /O.NEW.KPIH.FZ.W.0015.260518T0900Z-260518T1500Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert- Including the cities of INL, Carey, Mud Lake, Richfield, Shoshone, and Craters of the Moon NM 1218 PM MDT Sun May 17 2026 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...Sub-freezing temperatures 28 to 32 expected. * WHERE...Shoshone/Lava Beds and Arco/Mud Lake Desert. * WHEN...From 3 AM to 9 AM MDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ IDZ054-180330- /O.NEW.KPIH.FR.Y.0005.260518T0900Z-260518T1500Z/ /O.CON.KPIH.LW.Y.0005.260517T2100Z-260518T0300Z/ Lower Snake River Plain- Including the cities of American Falls, Blackfoot, Fort Hall, Pocatello, and Shelley 1218 PM MDT Sun May 17 2026 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...For the Lake Wind Advisory for American Falls Reservoir, north winds 10 to 20 mph with gusts up to 30 mph expected. For the Frost Advisory, temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36 tonight. * 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 Monday. * IMPACTS...Strong winds and rough waves on area lakes 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. && $$ IDZ053-055-180330- /O.NEW.KPIH.FR.Y.0005.260518T0900Z-260518T1500Z/ Upper Snake River Plain-Eastern Magic Valley- Including the cities of Rupert, Rexburg, Idaho Falls, Burley, Oakley, Heyburn, and St. Anthony 1218 PM MDT Sun May 17 2026 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...Temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36 tonight. * WHERE...Eastern Magic Valley and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. DMH Action: Continued Issued At: 2026-05-17 21:50:41 381 WWUS75 KPIH 180250 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 850 PM MDT Sun May 17 2026 IDZ054-181100- /O.EXP.KPIH.LW.Y.0005.000000T0000Z-260518T0300Z/ /O.CON.KPIH.FR.Y.0005.260518T0900Z-260518T1500Z/ Lower Snake River Plain- Including the cities of American Falls, Shelley, Fort Hall, Pocatello, and Blackfoot 850 PM MDT Sun May 17 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... ...LAKE WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING... * WHAT...For the Frost Advisory, temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36 tonight. Lake wind advisories are for daylight hours. Expect strong northwesterly winds tomorrow as well. Another lake wind advisory will be issued shortly for Monday, May 18th. * WHERE...Lower Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Monday. * 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. && $$ IDZ051-052-181100- /O.CON.KPIH.FZ.W.0015.260518T0900Z-260518T1500Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert- Including the cities of Craters of the Moon NM, INL, Mud Lake, Carey, Richfield, and Shoshone 850 PM MDT Sun May 17 2026 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...Sub-freezing temperatures 28 to 32 expected. * WHERE...Shoshone/Lava Beds and Arco/Mud Lake Desert. * WHEN...From 3 AM to 9 AM MDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ IDZ053-055-181100- /O.CON.KPIH.FR.Y.0005.260518T0900Z-260518T1500Z/ Upper Snake River Plain-Eastern Magic Valley- Including the cities of Rexburg, Rupert, Heyburn, St. Anthony, Oakley, Idaho Falls, and Burley 850 PM MDT Sun May 17 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...Temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36 tonight. * WHERE...Eastern Magic Valley and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Monday. * 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. && $$ Visit weather.gov/pocatello for more information. Wyatt Action: Continued Issued At: 2026-05-17 21:50:41 381 WWUS75 KPIH 180250 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 850 PM MDT Sun May 17 2026 IDZ054-181100- /O.EXP.KPIH.LW.Y.0005.000000T0000Z-260518T0300Z/ /O.CON.KPIH.FR.Y.0005.260518T0900Z-260518T1500Z/ Lower Snake River Plain- Including the cities of American Falls, Shelley, Fort Hall, Pocatello, and Blackfoot 850 PM MDT Sun May 17 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... ...LAKE WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING... * WHAT...For the Frost Advisory, temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36 tonight. Lake wind advisories are for daylight hours. Expect strong northwesterly winds tomorrow as well. Another lake wind advisory will be issued shortly for Monday, May 18th. * WHERE...Lower Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ IDZ051-052-181100- /O.CON.KPIH.FZ.W.0015.260518T0900Z-260518T1500Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert- Including the cities of Craters of the Moon NM, INL, Mud Lake, Carey, Richfield, and Shoshone 850 PM MDT Sun May 17 2026 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...Sub-freezing temperatures 28 to 32 expected. * WHERE...Shoshone/Lava Beds and Arco/Mud Lake Desert. * WHEN...From 3 AM to 9 AM MDT Monday. * 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. && $$ IDZ053-055-181100- /O.CON.KPIH.FR.Y.0005.260518T0900Z-260518T1500Z/ Upper Snake River Plain-Eastern Magic Valley- Including the cities of Rexburg, Rupert, Heyburn, St. Anthony, Oakley, Idaho Falls, and Burley 850 PM MDT Sun May 17 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...Temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36 tonight. * WHERE...Eastern Magic Valley and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. Wyatt Action: Continued Issued At: 2026-05-17 22:21:12 268 WWUS75 KPIH 180320 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 920 PM MDT Sun May 17 2026 IDZ051-052-181200- /O.CON.KPIH.FZ.W.0015.260518T0900Z-260518T1500Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert- Including the cities of Craters of the Moon NM, INL, Mud Lake, Carey, Richfield, and Shoshone 920 PM MDT Sun May 17 2026 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...Sub-freezing temperatures 28 to 32 expected. * WHERE...Shoshone/Lava Beds and Arco/Mud Lake Desert. * WHEN...From 3 AM to 9 AM MDT Monday. * 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. && $$ IDZ054-181200- /O.NEW.KPIH.LW.Y.0006.260518T1200Z-260519T0300Z/ /O.CON.KPIH.FR.Y.0005.260518T0900Z-260518T1500Z/ Lower Snake River Plain- Including the cities of American Falls, Shelley, Fort Hall, Pocatello, and Blackfoot 920 PM MDT Sun May 17 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... ...LAKE WIND ADVISORY IN EFFECT FROM 6 AM TO 9 PM MDT MONDAY FOR AMERICAN FALLS RESERVOIR... * WHAT...For the Frost Advisory, temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36. For the Lake Wind Advisory for American Falls Reservoir, north winds 20 to 30 mph with gusts up to 40 mph expected. * WHERE...Lower Snake River Plain. * WHEN...For the Frost Advisory, from 3 AM to 9 AM MDT Monday. For the Lake Wind Advisory, from 6 AM to 9 PM MDT Monday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. && $$ IDZ053-055-181200- /O.CON.KPIH.FR.Y.0005.260518T0900Z-260518T1500Z/ Upper Snake River Plain-Eastern Magic Valley- Including the cities of Rexburg, Rupert, Heyburn, St. Anthony, Oakley, Idaho Falls, and Burley 920 PM MDT Sun May 17 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...Temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36 tonight. * WHERE...Eastern Magic Valley and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Monday. * 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. && $$ Visit weather.gov/pocatello for more information. Wyatt Action: Continued Issued At: 2026-05-17 22:21:12 268 WWUS75 KPIH 180320 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 920 PM MDT Sun May 17 2026 IDZ051-052-181200- /O.CON.KPIH.FZ.W.0015.260518T0900Z-260518T1500Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert- Including the cities of Craters of the Moon NM, INL, Mud Lake, Carey, Richfield, and Shoshone 920 PM MDT Sun May 17 2026 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...Sub-freezing temperatures 28 to 32 expected. * WHERE...Shoshone/Lava Beds and Arco/Mud Lake Desert. * WHEN...From 3 AM to 9 AM MDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ IDZ054-181200- /O.NEW.KPIH.LW.Y.0006.260518T1200Z-260519T0300Z/ /O.CON.KPIH.FR.Y.0005.260518T0900Z-260518T1500Z/ Lower Snake River Plain- Including the cities of American Falls, Shelley, Fort Hall, Pocatello, and Blackfoot 920 PM MDT Sun May 17 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... ...LAKE WIND ADVISORY IN EFFECT FROM 6 AM TO 9 PM MDT MONDAY FOR AMERICAN FALLS RESERVOIR... * WHAT...For the Frost Advisory, temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36. For the Lake Wind Advisory for American Falls Reservoir, north winds 20 to 30 mph with gusts up to 40 mph expected. * WHERE...Lower Snake River Plain. * WHEN...For the Frost Advisory, from 3 AM to 9 AM MDT Monday. For the Lake Wind Advisory, from 6 AM to 9 PM MDT Monday. * IMPACTS...Strong winds and rough waves on area lakes 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. && $$ IDZ053-055-181200- /O.CON.KPIH.FR.Y.0005.260518T0900Z-260518T1500Z/ Upper Snake River Plain-Eastern Magic Valley- Including the cities of Rexburg, Rupert, Heyburn, St. Anthony, Oakley, Idaho Falls, and Burley 920 PM MDT Sun May 17 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT MONDAY... * WHAT...Temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36 tonight. * WHERE...Eastern Magic Valley and Upper Snake River Plain. * WHEN...From 3 AM to 9 AM MDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. Wyatt Action: Continued Issued At: 2026-05-18 05:54:06 850 WWUS75 KPIH 181053 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 453 AM MDT Mon May 18 2026 IDZ051-052-181500- /O.CON.KPIH.FZ.W.0015.000000T0000Z-260518T1500Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert- Including the cities of Richfield, INL, Mud Lake, Carey, Craters of the Moon NM, and Shoshone 453 AM MDT Mon May 18 2026 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...Sub-freezing temperatures 28 to 32 expected. * WHERE...Shoshone/Lava Beds and Arco/Mud Lake Desert. * WHEN...Until 9 AM MDT this morning. * 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. && $$ IDZ054-190300- /O.CON.KPIH.FR.Y.0005.000000T0000Z-260518T1500Z/ /O.CON.KPIH.LW.Y.0006.260518T1200Z-260519T0300Z/ Lower Snake River Plain- Including the cities of Fort Hall, American Falls, Shelley, Pocatello, and Blackfoot 453 AM MDT Mon May 18 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... * WHAT...For the Frost Advisory, temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36. For the Lake Wind Advisory for American Falls Reservoir, north winds 20 to 30 mph with gusts up to 40 mph expected. * WHERE...Lower Snake River Plain. * WHEN...For the Frost Advisory, until 9 AM MDT this morning. For the Lake Wind Advisory, until 9 PM MDT this evening. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. && $$ IDZ053-055-181500- /O.CON.KPIH.FR.Y.0005.000000T0000Z-260518T1500Z/ Upper Snake River Plain-Eastern Magic Valley- Including the cities of Oakley, Rupert, Burley, Heyburn, Rexburg, St. Anthony, and Idaho Falls 453 AM MDT Mon May 18 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...Temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36 tonight. * WHERE...Eastern Magic Valley 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. && $$ Visit weather.gov/pocatello for more information. JKeyes Action: Continued Issued At: 2026-05-18 05:54:06 850 WWUS75 KPIH 181053 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 453 AM MDT Mon May 18 2026 IDZ051-052-181500- /O.CON.KPIH.FZ.W.0015.000000T0000Z-260518T1500Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert- Including the cities of Richfield, INL, Mud Lake, Carey, Craters of the Moon NM, and Shoshone 453 AM MDT Mon May 18 2026 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...Sub-freezing temperatures 28 to 32 expected. * WHERE...Shoshone/Lava Beds and Arco/Mud Lake Desert. * WHEN...Until 9 AM MDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ IDZ054-190300- /O.CON.KPIH.FR.Y.0005.000000T0000Z-260518T1500Z/ /O.CON.KPIH.LW.Y.0006.260518T1200Z-260519T0300Z/ Lower Snake River Plain- Including the cities of Fort Hall, American Falls, Shelley, Pocatello, and Blackfoot 453 AM MDT Mon May 18 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... * WHAT...For the Frost Advisory, temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36. For the Lake Wind Advisory for American Falls Reservoir, north winds 20 to 30 mph with gusts up to 40 mph expected. * WHERE...Lower Snake River Plain. * WHEN...For the Frost Advisory, until 9 AM MDT this morning. For the Lake Wind Advisory, until 9 PM MDT this evening. * IMPACTS...Strong winds and rough waves on area lakes 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. && $$ IDZ053-055-181500- /O.CON.KPIH.FR.Y.0005.000000T0000Z-260518T1500Z/ Upper Snake River Plain-Eastern Magic Valley- Including the cities of Oakley, Rupert, Burley, Heyburn, Rexburg, St. Anthony, and Idaho Falls 453 AM MDT Mon May 18 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...Temperatures 32 to 36 will result in frost formation. Areas along the interstates from Burley to Pocatello to Idaho Falls may remain warmer than 36 tonight. * WHERE...Eastern Magic Valley and Upper Snake River Plain. * WHEN...Until 9 AM MDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit weather.gov/pocatello for more information. JKeyes Action: Expired Issued At: 2026-05-18 09:35:43 372 WWUS75 KPIH 181435 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 835 AM MDT Mon May 18 2026 IDZ051-052-181545- /O.EXP.KPIH.FZ.W.0015.000000T0000Z-260518T1500Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert- Including the cities of Shoshone, Richfield, INL, Craters of the Moon NM, Mud Lake, and Carey 835 AM MDT Mon May 18 2026 ...FREEZE WARNING WILL EXPIRE AT 9 AM MDT THIS MORNING... The threat has ended. $$ IDZ054-190300- /O.EXP.KPIH.FR.Y.0005.000000T0000Z-260518T1500Z/ /O.CON.KPIH.LW.Y.0006.000000T0000Z-260519T0300Z/ Lower Snake River Plain- Including the cities of Shelley, Blackfoot, American Falls, Fort Hall, and Pocatello 835 AM MDT Mon May 18 2026 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... ...FROST ADVISORY WILL EXPIRE AT 9 AM MDT THIS MORNING... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph for American Falls Reservoir. * WHERE...Lower Snake River Plain. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. && $$ IDZ053-055-181545- /O.EXP.KPIH.FR.Y.0005.000000T0000Z-260518T1500Z/ Upper Snake River Plain-Eastern Magic Valley- Including the cities of Rupert, Heyburn, St. Anthony, Burley, Oakley, Rexburg, and Idaho Falls 835 AM MDT Mon May 18 2026 ...FROST ADVISORY WILL EXPIRE AT 9 AM MDT THIS MORNING... The threat has ended. $$ Visit weather.gov/pocatello for more information. Messick Action: Expired Issued At: 2026-05-18 09:35:43 372 WWUS75 KPIH 181435 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 835 AM MDT Mon May 18 2026 IDZ051-052-181545- /O.EXP.KPIH.FZ.W.0015.000000T0000Z-260518T1500Z/ Shoshone/Lava Beds-Arco/Mud Lake Desert- Including the cities of Shoshone, Richfield, INL, Craters of the Moon NM, Mud Lake, and Carey 835 AM MDT Mon May 18 2026 ...FREEZE WARNING WILL EXPIRE AT 9 AM MDT THIS MORNING... The threat has ended. $$ IDZ054-190300- /O.EXP.KPIH.FR.Y.0005.000000T0000Z-260518T1500Z/ /O.CON.KPIH.LW.Y.0006.000000T0000Z-260519T0300Z/ Lower Snake River Plain- Including the cities of Shelley, Blackfoot, American Falls, Fort Hall, and Pocatello 835 AM MDT Mon May 18 2026 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... ...FROST ADVISORY WILL EXPIRE AT 9 AM MDT THIS MORNING... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph for American Falls Reservoir. * WHERE...Lower Snake River Plain. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. && $$ IDZ053-055-181545- /O.EXP.KPIH.FR.Y.0005.000000T0000Z-260518T1500Z/ Upper Snake River Plain-Eastern Magic Valley- Including the cities of Rupert, Heyburn, St. Anthony, Burley, Oakley, Rexburg, and Idaho Falls 835 AM MDT Mon May 18 2026 ...FROST ADVISORY WILL EXPIRE AT 9 AM MDT THIS MORNING... The threat has ended. $$ Visit weather.gov/pocatello for more information. Messick | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||