Freeze Warning
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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Bismarck ND
1234 PM CDT Mon May 18 2026
NDZ001>005-009-010-012-017>020-022-031>033-040-041-043-044-055>059-
191200-
/O.NEW.KBIS.FZ.W.0002.260519T0600Z-260519T1400Z/
Divide-Burke-Renville-Bottineau-Rolette-Williams-Mountrail-McHenry-
McKenzie-Dunn-Mercer-Oliver-Sheridan-Golden Valley-Billings-Stark-
Slope-Hettinger-Bowman-Adams-Northwest Ward-
Central and Southern Ward/Minot Area-Western McLean-Eastern McLean-
Western Morton-
Including the cities of Kenmare, Watford City, Powers Lake, Goodrich,
Crosby, Dickinson, Williston, New Town, Bowman, Hettinger, Sherwood,
Turtle Lake, Rolla, Glenburn, Columbus, Beulah, Mohall, Rolette,
Portal, Center, Marmarth, Wilton, Drake, Minot, Medora, Underwood,
Halliday, New England, Stanley, Shell Valley, Max, Beach, New Salem,
Glen Ullin, Mott, Towner, Mcclusky, Bottineau, Hazen, Lignite,
Garrison, Bowbells,
Dunseith, Washburn, St. John, Hebron, Parshall, Killdeer, and
Velva
1234 PM CDT Mon May 18 2026 /1134 AM MDT Mon May 18 2026/
...FREEZE WARNING IN EFFECT FROM 1 AM CDT /MIDNIGHT MDT/ TO 9 AM CDT
/8 AM MDT/ TUESDAY...
* WHAT...Sub-freezing temperatures as low as 27 expected.
* WHERE...Western and much of north central North Dakota.
* WHEN...From 1 AM CDT /midnight MDT/ to 9 AM CDT /8 AM MDT/ Tuesday.
* IMPACTS...Frost and freeze conditions could kill sensitive
vegetation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
&&
$$
Frost Advisory
URGENT - WEATHER MESSAGE
National Weather Service Aberdeen SD
126 PM CDT Mon May 18 2026
SDZ003>005-009-010-015-016-033>035-045-190430-
/O.NEW.KABR.FR.Y.0003.260519T0900Z-260519T1400Z/
Corson-Campbell-McPherson-Walworth-Edmunds-Dewey-Potter-Stanley-
Sully-Hughes-Jones-
Including the cities of Pierre, McIntosh, Isabel, Herreid,
Ipswich, Gettysburg, Fort Pierre, Mobridge, Eureka, Murdo, and
Onida
126 PM CDT Mon May 18 2026 /1226 PM MDT Mon May 18 2026/
...FROST ADVISORY IN EFFECT FROM 4 AM CDT /3 AM MDT/ TO 9 AM CDT /8
AM MDT/ TUESDAY...
* WHAT...Temperatures from 33 to 36 degrees may result in frost
formation.
* WHERE...Portions of central and north central South Dakota.
* WHEN...From 4 AM CDT /3 AM MDT/ to 9 AM CDT /8 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.
&&
$$
TMT
URGENT - WEATHER MESSAGE
National Weather Service Grand Forks ND
1255 PM CDT Mon May 18 2026
NDZ006-007-014-015-024-026-028-029-038-049-052-054-190200-
/O.NEW.KFGF.FR.Y.0006.260519T0600Z-260519T1400Z/
Towner-Cavalier-Benson-Ramsey-Eddy-Nelson-Griggs-Steele-Barnes-
Ransom-Sargent-Western Walsh-
Including the cities of Langdon, Michigan, Forman, Finley, Leeds,
Cando, New Rockford, Lankin, Lisbon, Devils Lake, Cooperstown,
Gwinner, and Valley City
1255 PM CDT Mon May 18 2026
...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM CDT TUESDAY...
* WHAT...Temperatures as low as 33 will result in frost formation.
* WHERE...Portions of northeast and southeast North Dakota.
* WHEN...From 1 AM to 9 AM CDT Tuesday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
&&
$$
JR
URGENT - WEATHER MESSAGE
National Weather Service Bismarck ND
1234 PM CDT Mon May 18 2026
NDZ013-023-025-035>037-042-046>048-050-051-060>062-191200-
/O.NEW.KBIS.FR.Y.0005.260519T0600Z-260519T1400Z/
Pierce-Wells-Foster-Burleigh-Kidder-Stutsman-Grant-Emmons-Logan-
La Moure-McIntosh-Dickey-Eastern Morton-Western Sioux-Eastern Sioux-
Including the cities of Carson, Oakes, Fessenden, Jamestown, Elgin,
Steele, Carrington, Strasburg, Fort Yates, Linton, Wishek, Mandan,
Solen, Ashley, Napoleon, Kulm, Porcupine, Harvey, Bismarck, Rugby,
Tappen, Edgeley, New Leipzig, Lamoure, Selfridge, Gackle, and
Ellendale
1234 PM CDT Mon May 18 2026 /1134 AM MDT Mon May 18 2026/
...FROST ADVISORY IN EFFECT FROM 1 AM CDT /MIDNIGHT MDT/ TO 9 AM CDT
/8 AM MDT/ TUESDAY...
* WHAT...Temperatures as low as 32 degrees expected.
* WHERE...South central and portions of north central North Dakota
along with the James River Valley.
* WHEN...From 1 AM CDT /midnight MDT/ to 9 AM CDT /8 AM MDT/ Tuesday.
* IMPACTS...Sensitive outdoor plants may be killed if left uncovered.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
&&
$$
Schild
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Bismarck ND
630 PM CDT Mon May 18 2026
NDZ001>005-009-010-012-017>020-022-031>033-040-041-043-044-
055>059-192330-
Divide-Burke-Renville-Bottineau-Rolette-Williams-Mountrail-
McHenry-McKenzie-Dunn-Mercer-Oliver-Sheridan-Golden Valley-
Billings-Stark-Slope-Hettinger-Bowman-Adams-Northwest Ward-
Central and Southern Ward/Minot Area-Western McLean-
Eastern McLean-Western Morton-
630 PM CDT Mon May 18 2026 /530 PM MDT Mon May 18 2026/
This Hazardous Weather Outlook is for portions of north central
North Dakota, northwest North Dakota, south central North Dakota,
and southwest North Dakota.
.DAY ONE...Tonight
A Freeze Warning is in effect for late tonight. See
www.weather.gov/bis for details.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday
A Freeze Warning is in effect for early Tuesday morning. See
www.weather.gov/bis for details.
Near or below freezing temperatures are possible again Tuesday
night into Wednesday morning.
.SPOTTER INFORMATION STATEMENT...
Spotters are asked to provide reports to the NWS using standard
procedures, including through our social media accounts.
$$
Hazardous Weather Outlook
National Weather Service Bismarck ND
630 PM CDT Mon May 18 2026
NDZ013-023-025-035>037-042-046>048-050-051-060>062-192330-
Pierce-Wells-Foster-Burleigh-Kidder-Stutsman-Grant-Emmons-Logan-
La Moure-McIntosh-Dickey-Eastern Morton-Western Sioux-
Eastern Sioux-
630 PM CDT Mon May 18 2026 /530 PM MDT Mon May 18 2026/
This Hazardous Weather Outlook is for portions of north central
North Dakota, south central North Dakota, and southeast North
Dakota.
.DAY ONE...Tonight
A Frost Advisory is in effect for late tonight. See
www.weather.gov/bis for details.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday
A Frost Advisory is in effect for early Tuesday morning. See
www.weather.gov/bis for details.
Near or below freezing temperatures are possible again Tuesday
night into Wednesday morning.
.SPOTTER INFORMATION STATEMENT...
Spotters are asked to provide reports to the NWS using standard
procedures, including through our social media accounts.
$$
Hazardous Weather Outlook
National Weather Service Grand Forks ND
259 PM CDT Mon May 18 2026
NDZ006-007-014-015-024-026-028-038-049-052-054-192000-
Towner-Cavalier-Benson-Ramsey-Eddy-Nelson-Griggs-Barnes-Ransom-
Sargent-Western Walsh-
259 PM CDT Mon May 18 2026
This hazardous weather outlook is for portions of eastern North
Dakota.
.DAY ONE...This Afternoon and Tonight
A frost advisory is in effect from 1am until 9am Tuesday.
Sensitive plants may experience minor vegetation damage.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday
The probability for widespread hazardous weather is low.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated today.
$$
