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Severe Thunderstorm Advisory #2134

USA Weather — Severe Weather Division

Issued
May 21 at 3:12 PM MDT
Expires
May 21 at 9:00 PM MDT
Forecasters
Wyatt Huber
States Included
Nebraska and South Dakota
Counties Included
Arthur, Box Butte, Brown, Chase, Cherry, Cheyenne, Dawes, Deuel, Dundy, Garden, Grant, Hayes, Hitchcock, Hooker, Keith, Kimball, Lincoln, Logan, McPherson, Morrill, Perkins, Scotts Bluff, Sheridan, Thomas, Bennett, Haakon, Hughes, Jackson, Jones, Lyman, Meade, Mellette, Oglala Lakota, Pennington, Stanley, Todd, and Tripp
Cities Included
Arthur, Alliance, Berea, Hemingford, Elsmere, Champion, Enders, Imperial, Lamar, Wauneta, Arabia, Brownlee, Cody, Crookston, Kilgore, Merriman, Nenzel, Sparks, Valentine, Wood Lake, Brownson, Dalton, Gurley, Lodgepole, Lorenzo, Potter, Sidney, Sunol, Chadron, Marsland, Whitney, Big Springs, Chappell, Benkelman, Haigler, Max, Parks, Lewellen, Lisco, Oshkosh, Ashby, Hyannis, Whitman, Hamlet, Hayes Center, Culbertson, Palisade, Stratton, Trenton, Mullen, Belmar, Brule, Keystone, Lemoyne, Martin, Ogallala, Paxton, Roscoe, Sarben, Dix, Kimball, Dickens, Hershey, Maxwell, North Platte, Sutherland, Wallace, Wellfleet, Gandy, Stapleton, Tryon, Angora, Bayard, Bridgeport, Broadwater, Perrin, Brandon, Elsie, Grainton, Grant, Madrid, Venango, Carlson, McGrew, Bingham, Clinton, Ellsworth, Gordon, Hay Springs, Lakeside, Rushville, Whiteclay, Halsey, Seneca, Thedford, Allen, Harrington, Tuthill, Midland, Milesville, Philip, Canning, Pierre, Belvidere, Cottonwood, Interior, Kadoka, Long Valley, Potato Creek, Wanblee, Capa, Draper, Murdo, Okaton, Kennebec, Lower Brule, Lyman, Presho, Vivian, Elm Springs, Corn Creek, Norris, White River, Wood, Red Shirt, Farmingdale, New Underwood, Owanka, Quinn, Scenic, Wall, Wasta, Fort Pierre, Hayes, Wendte, Antelope, Hidden Timber, Mission, Okreek, Parmelee, Rosebud, Saint Francis, Soldier Creek, Spring Creek, Two Strike, White Horse, Ideal, Winner, and Witten
People Affected
143,119
Max Hail Size
1.5 in
Wind Gusts
70 mph

...SUMMARY...SCATTERED HIGH-BASED STORMS WITH A SEVERE WIND/HAIL THREAT WILL PERSIST INTO THE EVENING...

...DISCUSSION...

SCATTERED HIGH-BASED THUNDERSTORM CLUSTERS WILL CONTINUE TO DEVELOP THIS AFTERNOON ACROSS THE CENTRAL TO NORTHERN HIGH PLAINS ALONG A COLD FRONT/SURFACE TROUGH. A WARM AND WELL MIXED BOUNDARY LAYER UNDERNEATH INCREASING MID-LEVEL MOISTURE AND STRENGTHENING DEEP-LAYER SHEAR WILL SUPPORT SCATTERED CLUSTERS AND LINE SEGMENTS, WITH AN ATTENDANT THREAT FOR LARGE HAIL AND SPORADIC DAMAGING OUTFLOW/DOWNBURST WINDS.



...HAZARDS...
...PROBABILITY OF TORNADOES...20%...
...PROBABILITY OF INTENSE TORNADOES (EF-2+)...<5%...
...PROBABILITY OF DAMAGING WIND...30%...
...PROBABILITY OF SIGNIFICANT DAMAGING WINDS (> 75 MPH)...10%...
...PROBABILITY OF HAIL...40%...
...PROBABILITY OF SIGNIFICANT HAIL (> 3 INCHES)...20%...

...PRECAUTIONARY/PREPAREDNESS ACTIONS...
...REMEMBER...THIS ADVISORY MEANS THAT SEVERE WEATHER IS POSSIBLE IN AND CLOSE TO THE ADVISORY AREA. PERSONS IN THESE AREAS SHOULD REMAIN ALERT AND BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS.
PLEASE STAY TUNED TO YOUR LOCAL USA WEATHER FORECAST OFFICE FOR THE LATEST INFORMATION. BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND STAY TUNED FOR LATER STATEMENTS AND POSSIBLE ALERTS.

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