Alert archive / Nebraska / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 21, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at May 14, 2019, 6:47 PM MDT for Box Butte County, Dawes County, Sioux County, Nebraska. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 14, 2019, 6:47 PM MDT (00:47 UTC)
- Expired
- May 14, 2019, 7:30 PM MDT
- In force
- 43 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Box Butte County, NE, Dawes County, NE, Sioux County, NE
The radar
The Rapid City radar (KUDX), 181 km from the middle of the area, began a volume at 00:48 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.
The nearest sounding before it
Rapid City, SD (KRAP), launched 00:00Z, 0.8 hours before the alert went out and 174 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
- 8 J/kg
- Mixed-layer CIN
- -162 J/kg
- Mixed-layer LCL
- 2158 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 354 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
752
WUUS55 KCYS 150047
SVRCYS
NEC013-045-165-150130-
/O.NEW.KCYS.SV.W.0021.190515T0047Z-190515T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
647 PM MDT Tue May 14 2019
The National Weather Service in Cheyenne has issued a
* Severe Thunderstorm Warning for...
Northwestern Box Butte County in the Panhandle of Nebraska...
Southwestern Dawes County in the Panhandle of Nebraska...
Northeastern Sioux County in the Panhandle of Nebraska...
* Until 730 PM MDT.
* At 647 PM MDT, a severe thunderstorm was located 10 miles south of
Montrose, or 36 miles west of Chadron, moving southeast 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...
Crawford, Hemingford, Fort Robinson Campground, Box Butte
Campground, Box Butte Dam, Marsland and Fort Robinson.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 4275 10384 4286 10365 4239 10289 4211 10323
TIME...MOT...LOC 0047Z 314DEG 20KT 4277 10371
HAIL...1.25IN
WIND...60MPH
$$
Braun2 follow-up statements
380
WWUS55 KCYS 150115
SVSCYS
Severe Weather Statement
National Weather Service Cheyenne WY
715 PM MDT Tue May 14 2019
NEC013-045-165-150130-
/O.CON.KCYS.SV.W.0021.000000T0000Z-190515T0130Z/
Box Butte NE-Dawes NE-Sioux NE-
715 PM MDT Tue May 14 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM MDT
FOR NORTHWESTERN BOX BUTTE...SOUTHWESTERN DAWES AND NORTHEASTERN
SIOUX COUNTIES...
At 714 PM MDT, a severe thunderstorm was located near Fort Robinson
Campground, or 30 miles west of Chadron, moving southeast at 25 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Crawford, Fort Robinson Campground, Fort Robinson and Marsland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 4263 10372 4280 10356 4254 10314 4235 10344
TIME...MOT...LOC 0114Z 314DEG 20KT 4266 10356
HAIL...1.25IN
WIND...60MPH
$$
Braun721
WWUS55 KCYS 150128
SVSCYS
Severe Weather Statement
National Weather Service Cheyenne WY
728 PM MDT Tue May 14 2019
NEC013-045-165-150138-
/O.EXP.KCYS.SV.W.0021.000000T0000Z-190515T0130Z/
Box Butte NE-Dawes NE-Sioux NE-
728 PM MDT Tue May 14 2019
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BOX BUTTE...
SOUTHWESTERN DAWES AND NORTHEASTERN SIOUX COUNTIES WILL EXPIRE AT 730
PM MDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Cheyenne.
LAT...LON 4263 10372 4280 10356 4254 10314 4235 10344
TIME...MOT...LOC 0128Z 314DEG 20KT 4262 10351
$$
BraunThe office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 7:30 PM MDT | Special Weather Statement | CYS | Box Butte | 45 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.