Freeze Warning
URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
1237 AM MDT Fri Apr 17 2026
IDZ051>055-171600-
/O.NEW.KPIH.FZ.W.0003.260418T0600Z-260418T1600Z/
/O.CON.KPIH.FZ.W.0002.260417T0900Z-260417T1600Z/
Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-Eastern Magic Valley-
Including the cities of Shoshone, INL, Rupert, Oakley, Rexburg,
Shelley, Heyburn, Mud Lake, Idaho Falls, Blackfoot, Richfield,
Burley, Carey, Craters of the Moon NM, St. Anthony, Fort Hall,
Pocatello, and American Falls
1237 AM MDT Fri Apr 17 2026
...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM MDT THIS MORNING...
...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MDT
SATURDAY...
* WHAT...Sub-freezing temperatures 18 to 22 degrees are forecast for
this morning. A Hard Freeze is expected. For the second freeze
warning, another widespread Hard Freeze is likely with lows 20 to
27 degrees.
* WHERE...Eastern Magic Valley, Shoshone/Lava Beds, Arco/Mud Lake
Desert, Lower Snake River Plain, and Upper Snake River Plain.
* WHEN...For the first Freeze Warning, until 10 AM MDT this morning.
For the second Freeze Warning, from midnight tonight to 10 AM MDT
Saturday.
* 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.
&&
$$
Visit weather.gov/pocatello for more information.
McKaughan
URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
837 PM PDT Thu Apr 16 2026
IDZ026-WAZ032-034-035-041-171500-
/O.CON.KOTX.FZ.W.0002.260417T0900Z-260417T1500Z/
Lewiston Area-Lower Garfield and Asotin Counties-Moses Lake Area-
Upper Columbia Basin-Wenatchee Area-
Including the cities of Number 2 Canyon, Lewiston, Harrington,
Grand Coulee, Chelan, Culdesac, Moses Lake, Number 1 Canyon,
Gifford, Pomeroy, Lewiston Grade, Clarkston, Wilbur, Pangborn
Airport, Lapwai, Alpowa Summit, Wenatchee, Quincy, Coulee City,
Ritzville, Creston, Peck, Othello, Entiat, Ephrata, Cashmere, and
Odessa
837 PM PDT Thu Apr 16 2026
...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM PDT FRIDAY...
* WHAT...Sub-freezing temperatures as low as 27 expected.
* WHERE...Number 2 Canyon, Lewiston, Harrington, Grand Coulee,
Chelan, Culdesac, Moses Lake, Number 1 Canyon, Gifford, Pomeroy,
Lewiston Grade, Clarkston, Wilbur, Pangborn Airport, Lapwai,
Alpowa Summit, Wenatchee, Quincy, Coulee City, Ritzville, Creston,
Peck, Othello, Entiat, Ephrata, Cashmere, and Odessa.
* WHEN...From 2 AM to 8 AM PDT Friday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
&&
$$
JW
URGENT - WEATHER MESSAGE
National Weather Service Boise ID
936 PM MDT Thu Apr 16 2026
IDZ012-014-016-ORZ064-171600-
/O.NEW.KBOI.FZ.W.0003.260418T0600Z-260418T1600Z/
/O.CON.KBOI.FZ.W.0002.260417T0600Z-260417T1600Z/
Lower Treasure Valley-Upper Treasure Valley-Western Magic Valley-
Oregon Lower Treasure Valley-
Including the cities of Twin Falls, Ontario, Nampa, Caldwell,
Nyssa, and Boise
936 PM MDT Thu Apr 16 2026 /836 PM PDT Thu Apr 16 2026/
...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM MDT /9 AM PDT/
FRIDAY...
...FREEZE WARNING IN EFFECT FROM MIDNIGHT MDT /11 PM PDT/ FRIDAY
NIGHT TO 10 AM MDT /9 AM PDT/ SATURDAY...
* WHAT...For the first Freeze Warning, sub-freezing temperatures as
low as 22 expected. For the second Freeze Warning, sub-freezing
temperatures as low as 26 expected.
* WHERE...Portions of south central and southwest Idaho and
southeast Oregon.
* WHEN...For the first Freeze Warning, until 10 AM MDT /9 AM PDT/
Friday. For the second Freeze Warning, from midnight MDT /11 PM
PDT/ Friday Night to 10 AM MDT /9 AM PDT/ Saturday.
* 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.
&&
$$
JDS
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Riverton WY
538 AM MDT Fri Apr 17 2026
WYZ001>020-022>030-181300-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
538 AM MDT Fri Apr 17 2026
...Winter Weather Advisory for Natrona County and the Green
Mountains until noon today...
...A Freeze Warning is in effect for many of the lower elevations
East of the Divide this morning and Saturday morning...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and Tonight.
Steady snow ending this morning. Further snow showers today will
leave light accumulations.
A hard freeze is likely late tonight East of the Divide.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Saturday morning...A hard freeze is likely in the lower elevations
East of the Continental Divide.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
