WWUS75 KPIH 190235
NPWPIH

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
835 PM MDT Mon May 18 2026

IDZ054-191200-
/O.EXP.KPIH.LW.Y.0006.000000T0000Z-260519T0300Z/
/O.CON.KPIH.FZ.W.0016.260519T0600Z-260519T1500Z/
Lower Snake River Plain-
Including the cities of Pocatello, Fort Hall, American Falls,
Shelley, and Blackfoot
835 PM MDT Mon May 18 2026

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM 
MDT TUESDAY...
...LAKE WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING...

* WHAT...Sub-freezing temperatures ranging from 25 to 32 expected.

* WHERE...Lower Snake River Plain.

* WHEN...From midnight tonight to 9 AM MDT Tuesday.

* 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.

&&

$$

IDZ052-053-191200-
/O.CON.KPIH.FZ.W.0016.260519T0600Z-260519T1500Z/
Arco/Mud Lake Desert-Upper Snake River Plain-
Including the cities of Rexburg, Craters of the Moon NM, St.
Anthony, INL, Idaho Falls, and Mud Lake
835 PM MDT Mon May 18 2026

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM 
MDT TUESDAY...

* WHAT...Sub-freezing temperatures ranging from 25 to 32 expected.

* WHERE...Arco/Mud Lake Desert and Upper Snake River Plain.

* WHEN...From midnight tonight to 9 AM MDT Tuesday.

* 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.

&&

$$

IDZ051-055-191200-
/O.CON.KPIH.FR.Y.0006.260519T0900Z-260519T1500Z/
Shoshone/Lava Beds-Eastern Magic Valley-
Including the cities of Oakley, Carey, Burley, Rupert, Shoshone,
Heyburn, and Richfield
835 PM MDT Mon May 18 2026

...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT TUESDAY...

* WHAT...Temperatures ranging from 33 to 36 will result in frost 
  formation.

* WHERE...Eastern Magic Valley and Shoshone/Lava Beds.

* WHEN...From 3 AM to 9 AM MDT Tuesday.

* 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.

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