Alert archive / Wyoming / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 322, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 15, 2019, 1:31 PM MDT for Niobrara County, Wyoming. It was in force for 21 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 15, 2019, 1:31 PM MDT (19:31 UTC)
- Expired
- Aug 15, 2019, 1:52 PM MDT
- In force
- 21 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Niobrara County, WY
The radar
The Rapid City radar (KUDX), 178 km from the middle of the area, began a volume at 19:34 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Cheyenne, WY wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 15, 11:00 AM MDT, 2 hours 31 minutes earlier.
Area forecast discussion, Aug 15, 11:00 AM MDT, 2 hours 31 minutes before
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</html>Hazardous weather outlook, Aug 15, 10:43 AM MDT, 2 hours 48 minutes before
Hazardous Weather Outlook National Weather Service Cheyenne WY 1043 AM MDT Thu Aug 15 2019 NEZ002-003-019-021-095-096-WYZ101-102-107-108-161000- Dawes-Box Butte-Scotts Bluff-Morrill-North Sioux-South Sioux- Converse County Lower Elevations-Niobrara County- East Platte County-Goshen County- 1043 AM MDT Thu Aug 15 2019 This hazardous weather outlook is for portions of western Nebraska...east central Wyoming and southeast Wyoming. .DAY ONE...TODAY AND TONIGHT Isolated thunderstorms will be possible this afternoon with a few strong storms possible. A somewhat greater threat for scattered strong to severe storms is expected later tonight with large hail the main threat. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY Widely scattered showers and storms are expected mainly on Friday, with a few of the storms possibly becoming severe, mainly over the Nebraska Panhandle. .Spotter information statement... Spotter activation is not expected at this time. NEZ020-054-055-WYZ103>106-109>119-161000- Banner-Kimball-Cheyenne-North Laramie Range- Ferris/Seminoe/Shirley Mountains-Shirley Basin- Central Laramie Range and Southwest Platte County- Central Carbon County-North Snowy Range Foothills- Southwest Carbon County-Sierra Madre Range- Upper North Platte River Basin-Snowy Range-Laramie Valley- South Laramie Range-South Laramie Range Foothills- Central Laramie County-East Laramie County- 1043 AM MDT Thu Aug 15 2019 This hazardous weather outlook is for portions of western Nebraska...south central Wyoming and southeast Wyoming. .DAY ONE...TODAY AND TONIGHT Isolated showers and thunderstorms are possible into this evening but the severe threat is low. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY The probability for widespread hazardous weather is low. .Spotter information statement... Spotter activation will not be needed.
In the hours before
Local storm report, Aug 15, 8:07 AM MDT, 5 hours 24 minutes before
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</html>Local storm report, Aug 15, 8:41 AM MDT, 4 hours 50 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHEYENNE WY
841 AM MDT THU AUG 15 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1245 AM HAIL 13 NW MULE CREEK JUNCTI 43.50N 104.42W
08/15/2019 E2.00 INCH WESTON WY PUBLIC
ON WESTON AND NIOBRARA COUNTY LINE.
0154 AM HAIL 8 N MULE CREEK JUNCTION 43.50N 104.20W
08/15/2019 E2.00 INCH NIOBRARA WY PUBLIC
DELAYED REPORT. HAIL DRIFTS ALONG HIGHWAY 85 NORTH OF
MULE CREEK JUNCTION. AT 825 AM HAIL DRIFTS UP TO 1.5 FEET
STILL EXIST. TIME ESTIMATED FROM RADAR.
0206 AM TSTM WND DMG 9 NE HARRISON 42.78N 103.76W
08/15/2019 SIOUX NE CO-OP OBSERVER
COOP OBSERVER SUGGESTED SHE HAD STRONG WINDS OVERNIGHT,
WITH LARGE TREE LIMBS REPORTED DOWN.
0300 AM HAIL 7 NE LANCE CREEK 43.09N 104.54W
08/15/2019 E1.75 INCH NIOBRARA WY TRAINED SPOTTER
HAIL STRIPPED TREES ON RESIDENTS PROPERTY.
0300 AM HAIL 7 NE LANCE CREEK 43.09N 104.54W
08/15/2019 E1.75 INCH NIOBRARA WY TRAINED SPOTTER
HAIL STRIPPED TREES ON PROPERTY.
&&
GCLAYCOMSpecial weather statement, Aug 15, 1:08 PM MDT, 23 minutes before
Special Weather Statement National Weather Service Cheyenne WY 108 PM MDT Thu Aug 15 2019 WYZ101-102-152000- Converse County Lower Elevations WY-Niobrara County WY- 108 PM MDT Thu Aug 15 2019 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN NIOBRARA AND EAST CENTRAL CONVERSE COUNTIES UNTIL 200 PM MDT... At 108 PM MDT, Doppler radar was tracking a strong thunderstorm near Manning Ranch, or 24 miles northwest of Lusk, moving southeast at 40 mph. Nickel size hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Lusk, Manville, Keeline, Lance Creek and Manning Ranch. LAT...LON 4297 10502 4311 10490 4297 10421 4262 10465 TIME...MOT...LOC 1908Z 305DEG 39KT 4297 10484 Claycomb
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 12:34 AM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 56 min |
| Aug 15, 1:42 AM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 33 min |
| Aug 15, 2:15 AM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 45 min |
| Aug 15, 2:40 AM MDT | Fire Weather Watch | CYS | 19 hr | |
| Aug 15, 2:40 AM MDT | Red Flag Warning | CYS | 17 hr | |
| Aug 15, 2:53 AM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 37 min |
| Aug 15, 3:28 AM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 22 min |
| Aug 15, 3:50 AM MDT | Special Weather Statement | CYS | Niobrara | 25 min |
| Aug 15, 1:08 PM MDT | Special Weather Statement | CYS | Niobrara | 52 min |
| Aug 15, 2:00 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Niobrara, Platte | 30 min |
| Aug 15, 2:23 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 37 min |
| Aug 15, 2:46 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 44 min |
| Aug 15, 4:05 PM MDT | Special Weather Statement | CYS | Goshen | 40 min |
| Aug 15, 4:23 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Platte | 29 min |
| Aug 15, 1:55 AM MDT | Severe Thunderstorm Warning | CYS | Dawes, Sioux | 50 min |
| Aug 15, 2:49 AM MDT | Special Weather Statement | CYS | Dawes | 26 min |
| Aug 15, 3:19 AM MDT | Special Weather Statement | CYS | Dawes | 26 min |
| Aug 15, 3:18 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff, Sioux | 57 min |
| Aug 15, 3:59 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Morrill, Scotts Bluff | 46 min |
| Aug 15, 4:43 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne, Morrill | 77 min |
| Aug 15, 5:23 PM MDT | Special Weather Statement | CYS | Kimball | 37 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 2019Every severe thunderstorm warning in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.