| Products in the Last Seven Days |
| Type |
Phenomena |
Count |
| Warning | Severe Thunderstorm | 993 |
| Advisory | Areal Flood | 330 |
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| Warning | Tornado | 150 |
| Warning | Flash Flood | 142 |
| Watch | Severe Thunderstorm | 63 |
| Advisory | Frost | 56 |
| Advisory | Wind | 43 |
| Warning | Freeze | 42 |
| Warning | Fire Weather | 38 |
| Watch | Areal Flood | 34 |
| Watch | Fire Weather | 30 |
| Watch | Tornado | 25 |
| Advisory | Dense Fog | 16 |
| Watch | Freeze | 14 |
| Warning | Gale | 14 |
| Advisory | Lake Wind | 13 |
| Watch | Gale | 11 |
| Advisory | Winter Weather | 10 |
| Warning | Dust Storm | 10 |
| Watch | Hazardous Seas | 8 |
| Advisory | Heat | 7 |
| Warning | High Wind | 7 |
| Warning | Winter Storm | 6 |
| Watch | Winter Storm | 6 |
| Advisory | Blowing Dust | 5 |
| Advisory | Dust Storm | 3 |
| Watch | High Wind | 2 |
| Warning | Hazardous Seas | 2 |
| Advisory | Flood | 2 |
| Warning | Blowing Dust | 1 |
| Most Active Forecast Offices |
| Forecast Office |
Products |
| San Angelo, TX | 103 |
| Omaha / Valley, NE | 103 |
| Topeka, KS | 99 |
| Austin / San Antonio, TX | 64 |
| Midland / Odessa, TX | 61 |
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| Product Count by Day |
| Date |
Warn |
Watch |
Advis. |
| 2026-05-24 | 11 |
20 | 45 |
| 2026-05-23 | 153 |
9 | 83 |
| 2026-05-22 | 170 |
12 | 70 |
| 2026-05-21 | 117 |
9 | 103 |
| 2026-05-20 | 115 |
12 | 81 |
| 2026-05-19 | 186 |
18 | 74 |
| 2026-05-18 | 337 |
42 | 126 |
| 2026-05-17 | 281 |
32 | 59 |
| 2026-05-16 | 23 |
25 | 21 |
| Particularly Dangerous Situations |
| Product |
Forecast Office |
| Tornado Warning 0005 | Hastings, NE |
| Tornado Warning 0032 | Omaha / Valley, NE |
| Tornado Warning 0044 | Kansas City / Pleasant Hill, MO |
|
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Winter Storm Warning 0005
Issued by the Riverton Forecast Office
| Action |
Issued |
Starts |
Expiration |
| Expired |
2026-05-18 18:49:31 |
|
2026-05-18 19:00:00 |
Action: Expired
Issued At: 2026-05-18 18:49:31
139
WWUS45 KRIW 182349
WSWRIW
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
549 PM MDT Mon May 18 2026
WYZ015-018>020-022-030-190100-
/O.EXP.KRIW.WS.W.0005.000000T0000Z-260519T0000Z/
Wind River Mountains East-Lander Foothills-Green Mountains and
Rattlesnake Range-Natrona County Lower Elevations-Casper Mountain-
East Sweetwater County-
Including the cities of Lander, Wamsutter, Jeffrey City, and
Casper
549 PM MDT Mon May 18 2026
...WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...
Accumulating snow has ended and gusty northeast wind has
substantially decreased. Therefore, the winter storm warning will be
allowed to expire at 6 PM Monday.
$$
WYZ014-026>029-190100-
/O.EXP.KRIW.WW.Y.0019.000000T0000Z-260519T0000Z/
Wind River Mountains West-Upper Green River Basin-South Lincoln
County-Rock Springs and Green River-Flaming Gorge-
Including the cities of Farson, Cokeville, Big Piney, La Barge,
Green River, Kemmerer, and Rock Springs
549 PM MDT Mon May 18 2026
...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING...
Light snow may continue through 9 or 10 PM Monday across the lower
elevations of mainly Sublette County. However, with temperatures
hovering between 29 and 34 degrees accumulations would be light.
Therefore, the winter weather advisory will be allowed to expire at
6 PM Monday.
$$
For more information from the National Weather Service, visit
https://weather.gov/riw/ .
CNJ
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