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Frost Advisory 0003
Issued by the Rapid City Forecast Office

Action Issued Starts Expiration
New 2026-05-18 12:50:20 2026-05-19 01:00:00 2026-05-19 10:00:00
Continued 2026-05-18 21:43:52 2026-05-19 01:00:00 2026-05-19 10:00:00
Expired 2026-05-19 09:51:47 2026-05-19 10:00:00


Action: New
Issued At: 2026-05-18 12:50:20

472 
WWUS73 KUNR 181749
NPWUNR

URGENT - WEATHER MESSAGE
National Weather Service Rapid City SD
1149 AM MDT Mon May 18 2026

SDZ001-002-012>014-025>027-030>032-041>044-072>078-WYZ054>056-
058>060-190900-
/O.CON.KUNR.FZ.W.0002.260519T0600Z-260519T1500Z/
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Foothills-Rapid City-Southern Foothills-Custer Co Plains-
Pennington Co Plains-Haakon-Western Fall River-Northern Oglala
Lakota-Northern Jackson-Bennett-Sturgis/Piedmont Foothills-
Southern Meade Co Plains-Hermosa Foothills-Eastern Fall River-
Southern Oglala Lakota-Southern Jackson-Southern Perkins-Northern
Campbell-Southern Campbell-Western Crook-Weston County Plains-
Newcastle-Northeastern Crook-
Including the cities of Wounded Knee, Caputa, Midland, South Eagle
Butte, Hermosa, Belle Fourche Reservoir, Newcastle, Colony,
Cottonwood, Hoover, Rozet, Kyle, Moorcroft, Interior, Quinn, Lemmon,
Tuthill, Folsom, Newell, Hulett, Buffalo Gap, Oral, Cherry Creek,
Piedmont, Black Hawk, Opal, Hot Springs, Camp Crook, Milesville,
Fairburn, Martin, Enning, Buffalo, Rochelle, Devils Tower, Philip,
Angostura Reservoir, Wanblee, Beulah, Vale, Potato Creek, Oglala,
Whitewood, Long Valley, Rockyford, Keyhole Reservoir, Belvidere,
Batesland, Faith, Union Center, Dupree, Wall, Rumford, Smithwick,
Belle Fourche, New Underwood, Fruitdale, Kadoka, Meadow, Saint Onge,
Ludlow, Edgemont, Osage, Reva, Box Elder, Gillette, Aladdin, Howes,
Zeona, Red Owl, Wright, Oelrichs, Ladner, Scenic, Ellsworth AFB,
Provo, Sorum, Pine Haven, Rapid City, Sturgis, Prairie City, Wasta,
Sharps Corner, Glad Valley, Clareton, Elm Springs, Upton, Porcupine,
Mud Butte, Summerset, Ardmore, Weston, White Owl, Recluse, Pine
Ridge, Allen, Tilford, Shadehill, Spearfish, Bison, Manderson,
Harrington, Usta, and Redig
1149 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 28 expected.

* WHERE...Portions of northwestern and southwestern South Dakota and
  northeast Wyoming.

* 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.

&&

$$

SDZ046-047-190900-
/O.NEW.KUNR.FR.Y.0003.260519T0600Z-260519T1500Z/
Mellette-Todd-
Including the cities of Wood, White River, Saint Francis, Parmelee,
Mission, Norris, Cedar Butte, and Rosebud
1249 PM CDT Mon May 18 2026

...FROST ADVISORY IN EFFECT FROM 1 AM TO 10 AM CDT TUESDAY...

* WHAT...Temperatures as low as 33 will result in frost formation.

* WHERE...Mellette and Todd.

* WHEN...From 1 AM to 10 AM CDT 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.

&&

$$


Action: Continued
Issued At: 2026-05-18 21:43:52

226 
WWUS73 KUNR 190243
NPWUNR

URGENT - WEATHER MESSAGE
National Weather Service Rapid City SD
843 PM MDT Mon May 18 2026

SDZ001-002-012>014-025>027-030>032-041>044-072>078-WYZ054>056-
058>060-191500-
/O.CON.KUNR.FZ.W.0002.260519T0600Z-260519T1500Z/
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Foothills-Rapid City-Southern Foothills-Custer Co Plains-
Pennington Co Plains-Haakon-Western Fall River-Northern Oglala
Lakota-Northern Jackson-Bennett-Sturgis/Piedmont Foothills-
Southern Meade Co Plains-Hermosa Foothills-Eastern Fall River-
Southern Oglala Lakota-Southern Jackson-Southern Perkins-Northern
Campbell-Southern Campbell-Western Crook-Weston County Plains-
Newcastle-Northeastern Crook-
Including the cities of Manderson, Harrington, Oral, Belvidere,
Smithwick, Meadow, Camp Crook, Sharps Corner, Wright, Wall, Piedmont,
Colony, Tuthill, Newell, Angostura Reservoir, Martin, Philip,
Edgemont, Sturgis, Buffalo Gap, Vale, Redig, Mud Butte, Osage,
Caputa, Quinn, Buffalo, Wanblee, Cherry Creek, Ladner, Usta, Bison,
Midland, Dupree, Prairie City, Batesland, Cottonwood, Weston, Folsom,
Enning, Moorcroft, Wasta, Zeona, Gillette, Rochelle, Rozet, South
Eagle Butte, Long Valley, Red Owl, Belle Fourche, Fairburn,
Porcupine, Allen, Interior, Ellsworth AFB, Keyhole Reservoir, Rapid
City, Scenic, Tilford, Devils Tower, Milesville, Beulah, Faith,
Hoover, Reva, Rockyford, Wounded Knee, Oelrichs, White Owl, Oglala,
Clareton, Summerset, Elm Springs, Sorum, Potato Creek, Kyle, Hot
Springs, Spearfish, Ardmore, Box Elder, Saint Onge, Kadoka, Hermosa,
Aladdin, Newcastle, Hulett, Belle Fourche Reservoir, Black Hawk,
Union Center, Whitewood, Howes, Fruitdale, Lemmon, New Underwood,
Provo, Recluse, Pine Haven, Shadehill, Opal, Glad Valley, Pine Ridge,
Upton, Ludlow, and Rumford
843 PM 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 28 expected.

* WHERE...Portions of northwestern and southwestern South Dakota and
  northeast Wyoming.

* 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.

&&

$$

SDZ046-047-191500-
/O.CON.KUNR.FR.Y.0003.260519T0600Z-260519T1500Z/
Mellette-Todd-
Including the cities of Parmelee, Norris, Mission, Rosebud, Wood,
White River, Cedar Butte, and Saint Francis
943 PM CDT Mon May 18 2026

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 10 AM CDT TUESDAY...

* WHAT...Temperatures as low as 33 will result in frost formation.

* WHERE...Mellette and Todd.

* WHEN...From 1 AM to 10 AM CDT 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.

&&

$$

Helgeson


Action: Expired
Issued At: 2026-05-19 09:51:47

795 
WWUS73 KUNR 191451
NPWUNR

URGENT - WEATHER MESSAGE
National Weather Service Rapid City SD
851 AM MDT Tue May 19 2026

SDZ001-002-012>014-025>027-030>032-041>044-072>078-WYZ054>056-
058>060-191600-
/O.EXP.KUNR.FZ.W.0002.000000T0000Z-260519T1500Z/
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Foothills-Rapid City-Southern Foothills-Custer Co Plains-
Pennington Co Plains-Haakon-Western Fall River-Northern Oglala
Lakota-Northern Jackson-Bennett-Sturgis/Piedmont Foothills-
Southern Meade Co Plains-Hermosa Foothills-Eastern Fall River-
Southern Oglala Lakota-Southern Jackson-Southern Perkins-Northern
Campbell-Southern Campbell-Western Crook-Weston County Plains-
Newcastle-Northeastern Crook-
Including the cities of Union Center, Kadoka, Folsom, Porcupine,
Whitewood, Rozet, Caputa, Beulah, Tuthill, Upton, Belle Fourche
Reservoir, Belle Fourche, Ladner, Black Hawk, Long Valley, Shadehill,
Saint Onge, Bison, Manderson, Buffalo Gap, Glad Valley, Philip,
Milesville, Rockyford, Hermosa, South Eagle Butte, Camp Crook,
Midland, Batesland, Smithwick, Oral, Devils Tower, Vale, Newcastle,
Ardmore, Prairie City, Edgemont, Wanblee, Cherry Creek, Keyhole
Reservoir, Fairburn, New Underwood, Usta, Quinn, Rumford, Pine Ridge,
Dupree, Sharps Corner, Box Elder, Potato Creek, Zeona, Recluse, Mud
Butte, Clareton, Moorcroft, Wasta, Aladdin, Newell, Faith, Rochelle,
Howes, Red Owl, Oelrichs, Opal, Scenic, Redig, Oglala, Reva,
Fruitdale, Hot Springs, Harrington, Cottonwood, Rapid City,
Spearfish, Wall, Allen, Kyle, Hulett, Martin, Ellsworth AFB, Ludlow,
Belvidere, Weston, Pine Haven, Sturgis, Piedmont, Elm Springs,
Meadow, Provo, Buffalo, Angostura Reservoir, Summerset, Wright,
Wounded Knee, Osage, Tilford, Hoover, White Owl, Interior, Gillette,
Enning, Lemmon, Sorum, and Colony
851 AM MDT Tue May 19 2026

...FREEZE WARNING WILL EXPIRE AT 9 AM MDT THIS MORNING...

The threat has ended.

$$

SDZ046-047-191600-
/O.EXP.KUNR.FR.Y.0003.000000T0000Z-260519T1500Z/
Mellette-Todd-
Including the cities of Mission, Saint Francis, Wood, White River,
Norris, Rosebud, Parmelee, and Cedar Butte
951 AM CDT Tue May 19 2026

...FROST ADVISORY WILL EXPIRE AT 10 AM CDT THIS MORNING...

The threat has ended.

$$



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