Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 67, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 19, 2021, 3:31 PM MDT for Cheyenne County, Nebraska. It was in force for 59 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 19, 2021, 3:31 PM MDT (21:31 UTC)
- Expired
- Jun 19, 2021, 4:30 PM MDT
- In force
- 59 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Cheyenne County, NE
The radar
The Cheyenne radar (KCYS), 163 km from the middle of the area, began a volume at 21:32 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 19, 3:37 PM MDT | HAIL 0.75 | Dalton, NE |
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 19, 1:44 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.5 hours before the alert went out and 151 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2627 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
749
WUUS55 KCYS 192131
SVRCYS
NEC033-192230-
/O.NEW.KCYS.SV.W.0067.210619T2131Z-210619T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
331 PM MDT Sat Jun 19 2021
The National Weather Service in Cheyenne has issued a
* Severe Thunderstorm Warning for...
Cheyenne County in the Panhandle of Nebraska...
* Until 430 PM MDT.
* At 330 PM MDT, severe thunderstorms were located along a line
extending from Dalton to near Sidney to 7 miles northwest of Peetz,
moving east at 25 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Sidney, Lodgepole, Dalton, Gurley, Colton, Sunol, Brownson, Lorenzo
and Sidney Airport.
This includes Interstate 80 in Nebraska between mile markers 49 and
77.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4100 10263 4100 10334 4101 10337 4123 10308
4144 10305 4143 10264 4140 10263 4139 10261
4105 10261
TIME...MOT...LOC 2130Z 287DEG 24KT 4142 10298 4121 10298 4104 10322
TORNADO...POSSIBLE
HAIL...1.25IN
WIND...60MPH
$$
Brothers3 follow-up statements
441
WWUS55 KCYS 192152
SVSCYS
Severe Weather Statement
National Weather Service Cheyenne WY
352 PM MDT Sat Jun 19 2021
NEC033-192230-
/O.CON.KCYS.SV.W.0067.000000T0000Z-210619T2230Z/
Cheyenne NE-
352 PM MDT Sat Jun 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM MDT
FOR EASTERN CHEYENNE COUNTY...
At 351 PM MDT, severe thunderstorms were located along a line
extending from 8 miles east of Dalton to near Colton to Lorenzo,
moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Sidney, Lodgepole, Colton, Sunol, Brownson, Lorenzo and Sidney
Airport.
This includes Interstate 80 in Nebraska between mile markers 50 and
77.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4100 10263 4100 10323 4115 10315 4129 10297
4144 10296 4143 10264 4140 10263 4139 10261
4105 10261
TIME...MOT...LOC 2151Z 287DEG 24KT 4138 10282 4117 10282 4100 10306
HAIL...1.00IN
WIND...60MPH
$$
Brothers237
WWUS55 KCYS 192206
SVSCYS
Severe Weather Statement
National Weather Service Cheyenne WY
406 PM MDT Sat Jun 19 2021
NEC033-192230-
/O.CON.KCYS.SV.W.0067.000000T0000Z-210619T2230Z/
Cheyenne NE-
406 PM MDT Sat Jun 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM MDT
FOR EASTERN CHEYENNE COUNTY...
At 405 PM MDT, severe thunderstorms were located along a line
extending from 11 miles southwest of Lisco to near Lodgepole to 6
miles southeast of Lorenzo, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Sidney, Lodgepole, Colton, Sunol, Sidney Airport and Lorenzo.
This includes Interstate 80 in Nebraska between mile markers 56 and
77.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4100 10263 4100 10310 4116 10300 4120 10284
4144 10282 4143 10264 4140 10263 4139 10261
4105 10261
TIME...MOT...LOC 2205Z 287DEG 24KT 4135 10270 4114 10270 4097 10294
HAIL...1.00IN
WIND...60MPH
$$
Brothers272
WWUS55 KCYS 192224
SVSCYS
Severe Weather Statement
National Weather Service Cheyenne WY
424 PM MDT Sat Jun 19 2021
NEC033-192234-
/O.EXP.KCYS.SV.W.0067.000000T0000Z-210619T2230Z/
Cheyenne NE-
424 PM MDT Sat Jun 19 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CHEYENNE COUNTY WILL
EXPIRE AT 430 PM MDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire. However gusty winds are still possible with
these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
the Panhandle of Nebraska.
LAT...LON 4100 10263 4100 10310 4116 10300 4120 10284
4144 10282 4143 10264 4140 10263 4139 10261
4105 10261
TIME...MOT...LOC 2224Z 287DEG 24KT 4132 10255 4111 10255 4094 10279
$$
BrothersThe office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 8:13 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Kimball | 47 min |
| Jun 19, 1:41 PM MDT | Special Weather Statement | CYS | Banner | 49 min |
| Jun 19, 2:04 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Morrill, Scotts Bluff | 41 min |
| Jun 19, 2:23 PM MDT | Special Weather Statement | CYS | Kimball | 52 min |
| Jun 19, 2:38 PM MDT | Special Weather Statement | CYS | Box Butte | 52 min |
| Jun 19, 2:42 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Cheyenne, Kimball, Morrill | 36 min |
| Jun 19, 2:46 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Morrill | 17 min |
| Jun 19, 2:53 PM MDT | Special Weather Statement | CYS | Morrill | 37 min |
| Jun 19, 3:20 PM MDT | Special Weather Statement | CYS | Cheyenne | 55 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2021Every severe thunderstorm warning in 2021
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.