WWUS75 KSLC 181437
NPWSLC

URGENT - WEATHER MESSAGE
National Weather Service Salt Lake City UT
837 AM MDT Mon May 18 2026

UTZ108-115-116-118-119-122-190545-
/O.EXP.KSLC.FZ.W.0019.000000T0000Z-260518T1500Z/
/O.CON.KSLC.FZ.W.0020.260519T0600Z-260519T1500Z/
Wasatch Back-Western Millard and Juab Counties-Eastern
Juab/Millard Counties-Sanpete Valley-Sevier Valley-Southwest Utah-
Including the following locations - Cedar City, Delta, Salina,
Beaver, Huntsville, Heber City, Nephi, Scipio, Manti, Fillmore,
Mt Pleasant, Richfield, Ephraim, Milford, Little Sahara, and Park
City
837 AM MDT Mon May 18 2026

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM 
MDT TUESDAY...
...FREEZE WARNING WILL EXPIRE AT 9 AM MDT THIS MORNING...

* WHAT...Sub-freezing temperatures as low as the mid to upper 20s 
  expected.

* WHERE...Eastern Juab/Millard Counties, Sanpete Valley, Sevier 
  Valley, Western Millard and Juab Counties, Wasatch Back, and 
  Southwest Utah.

* 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.

* ADDITIONAL DETAILS...Temperatures are rising above freezing this 
  morning but will drop below freezing again tonight into Tuesday 
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

Drain in-ground sprinkler systems and cover above ground pipes.

&&

$$

UTZ107-114-190545-
/O.CON.KSLC.FZ.W.0020.260519T0600Z-260519T1500Z/
Cache Valley/Utah Portion-Western Uinta Basin-
Including the following locations - Roosevelt, Logan, Duchesne,
and Smithfield
837 AM MDT Mon May 18 2026

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

* WHAT...Sub-freezing temperatures as low as the mid to upper 20s 
  expected.

* WHERE...Cache Valley/Utah Portion and Western Uinta Basin.

* 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.

Drain in-ground sprinkler systems and cover above ground pipes.

&&

$$

For more information from the National Weather Service visit 
https://weather.gov/saltlakecity.

For information on potential travel impacts visit 
http://udottraffic.utah.gov

MT