091 WWUS74 KOUN 190234 NPWOUN URGENT - WEATHER MESSAGE National Weather Service Norman OK 934 PM CDT Mon May 18 2026 OKZ004>027-034>038-190800- /O.EXT.KOUN.WI.Y.0013.000000T0000Z-260519T0800Z/ Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield- Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne- Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-Greer-Kiowa- Jackson-Tillman-Comanche- Including the cities of Geary, Laverne, Weatherford, Okeene, Snyder, Clinton, Pond Creek, Fairview, Stroud, Medford, Woodward, Carmen, Mangum, Hennessey, Blackwell, Gage, Tuttle, Okarche, Perry, Concho, Elk City, Chickasha, Hammon, Cordell, Lamont, Wakita, Lawton, Shattuck, Kingfisher, Burns Flat, Alva, Hobart, Granite, Seiling, Chandler, Yukon, Stillwater, Oklahoma City, Sentinel, El Reno, Cheyenne, Altus, Frederick, Meeker, Anadarko, Prague, Wellston, Vici, Sayre, Davenport, Buffalo, Taloga, Arnett, Mustang, Ponca City, Leedey, Helena, Hinton, Enid, Cherokee, Fargo, Watonga, and Guthrie 934 PM CDT Mon May 18 2026 ...WIND ADVISORY NOW IN EFFECT UNTIL 3 AM CDT TUESDAY... * WHAT...South winds 20 to 30 mph with gusts up to 50 mph. North winds behind a cold front will be 20 to 30 mph with gusts up to 50 mph. * WHERE...Portions of central, northern, northwest, southwest, and western Oklahoma. * WHEN...Until 3 AM CDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Bunker  124 WWUS75 KPIH 190235 NPWPIH URGENT - WEATHER MESSAGE National Weather Service Pocatello ID 835 PM MDT Mon May 18 2026 IDZ054-191200- /O.EXP.KPIH.LW.Y.0006.000000T0000Z-260519T0300Z/ /O.CON.KPIH.FZ.W.0016.260519T0600Z-260519T1500Z/ Lower Snake River Plain- Including the cities of Pocatello, Fort Hall, American Falls, Shelley, and Blackfoot 835 PM MDT Mon May 18 2026 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM MDT TUESDAY... ...LAKE WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING... * WHAT...Sub-freezing temperatures ranging from 25 to 32 expected. * WHERE...Lower Snake River Plain. * WHEN...From midnight tonight to 9 AM MDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ 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. 13  424 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