Alert archive / Nebraska / Tornado Warnings in 2023
Tornado Warning 21, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at Jun 23, 2023, 6:58 PM MDT for Scotts Bluff County, Nebraska; Goshen County, Wyoming. It was in force for 32 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 23, 2023, 6:58 PM MDT (00:58 UTC)
- Expired
- Jun 23, 2023, 7:30 PM MDT
- In force
- 32 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Tornado
- Observed
- Damage threat
- Considerable
- Hail
- 2.0 in
Counties Scotts Bluff County, NE, Goshen County, WY
The radar
The Cheyenne radar (KCYS), 96 km from the middle of the area, began a volume at 00:59 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 23, 7:11 PM MDT | HAIL 4 | 8 Se Lyman, NE | Softball sized hail reported on Robiduex Rd SE of Stegall. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 23, 2:22 PM MDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Rapid City, SD (KUNR), launched 00:00Z, 1.0 hours before the alert went out and 272 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1028 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1066 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 7.3
The text
As transmitted.
333
WFUS55 KCYS 240058
TORCYS
NEC157-WYC015-240130-
/O.NEW.KCYS.TO.W.0021.230624T0058Z-230624T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Cheyenne WY
658 PM MDT Fri Jun 23 2023
The National Weather Service in Cheyenne has issued a
* Tornado Warning for...
Southwestern Scotts Bluff County in the Panhandle of Nebraska...
Eastern Goshen County in southeastern Wyoming...
* Until 730 PM MDT.
* At 657 PM MDT, a confirmed large and extremely dangerous tornado
was located 8 miles northeast of Hawk Springs Campground, or 20
miles south of Torrington, moving east at 15 mph.
This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!
HAZARD...Damaging tornado.
SOURCE...Public confirmed tornado.
IMPACT...You are in a life-threatening situation. Flying debris
may be deadly to those caught without shelter. Mobile
homes will be destroyed. Considerable damage to homes,
businesses, and vehicles is likely and complete
destruction is possible.
* Locations impacted include...
Stegall.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, TAKE COVER NOW! Move
to a basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4171 10411 4186 10411 4192 10385 4170 10382
4170 10403
TIME...MOT...LOC 0057Z 274DEG 12KT 4178 10406
TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...2.00 IN
$$
FullerThe office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 6:11 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff, Sioux | 49 min |
| Jun 23, 6:28 PM MDT | Tornado Warning | CYS | Scotts Bluff | 32 min |
| Jun 23, 6:58 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff, Sioux | 47 min |
| Jun 23, 7:21 PM MDT | Tornado Warning | CYS | Scotts Bluff | 24 min |
| Jun 23, 7:31 PM MDT | Tornado Warning | CYS | Morrill, Scotts Bluff, Sioux | 29 min |
| Jun 23, 7:45 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff, Sioux | 45 min |
| Jun 23, 7:56 PM MDT | Tornado Warning | CYS | Scotts Bluff | 34 min |
| Jun 23, 8:05 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff, Sioux | 40 min |
| Jun 23, 8:12 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Morrill, Scotts Bluff, Sioux | 63 min |
| Jun 23, 8:15 PM MDT | Tornado Warning | CYS | Scotts Bluff, Sioux | 30 min |
| Jun 23, 8:18 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 57 min |
| Jun 23, 8:36 PM MDT | Tornado Warning | CYS | Scotts Bluff, Sioux | 24 min |
| Jun 23, 8:48 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne, Morrill | 46 min |
| Jun 23, 8:55 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Morrill, Scotts Bluff, Sioux | 50 min |
| Jun 23, 8:57 PM MDT | Flash Flood Warning | CYS | Morrill, Scotts Bluff, Sioux | 3 hr |
| Jun 23, 9:12 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Morrill | 63 min |
| Jun 23, 9:15 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 34 min |
| Jun 23, 9:26 PM MDT | Flash Flood Warning | CYS | Cheyenne | 3 hr |
| Jun 23, 9:26 PM MDT | Tornado Warning | CYS | Box Butte, Morrill | 17 min |
| Jun 23, 9:41 PM MDT | Tornado Warning | CYS | Morrill | 11 min |
| Jun 23, 9:43 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Morrill | 47 min |
| Jun 23, 9:45 PM MDT | Special Weather Statement | CYS | Banner, Scotts Bluff | 60 min |
| Jun 23, 9:52 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Scotts Bluff | 38 min |
| Jun 23, 9:55 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 39 min |
| Jun 23, 10:21 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Box Butte, Cheyenne, Kimball, Morrill, Scotts Bluff and 1 more | 69 min |
| Jun 23, 6:07 PM MDT | Tornado Warning | CYS | Goshen | 23 min |
| Jun 23, 6:32 PM MDT | Severe Thunderstorm Warning | CYS | Converse | 43 min |
| Jun 23, 6:48 PM MDT | Severe Thunderstorm Warning | CYS | Converse, Niobrara | 42 min |
| Jun 23, 6:55 PM MDT | Severe Thunderstorm Warning | CYS | Converse, Niobrara | 50 min |
| Jun 23, 7:09 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Platte | 51 min |
| Jun 23, 7:19 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 56 min |
| Jun 23, 7:26 PM MDT | Severe Thunderstorm Warning | CYS | Converse, Niobrara | 49 min |
| Jun 23, 8:28 PM MDT | Special Weather Statement | CYS | Niobrara | 47 min |
| Jun 23, 8:39 PM MDT | Special Weather Statement | CYS | Niobrara | 51 min |
| Jun 23, 8:44 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 37 min |
Nearby
Tornado Warnings in Nebraska, 2023Tornado Warnings in Wyoming, 2023Every tornado warning in 2023Tornadoes in 2023
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.