Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 75, NWS Cheyenne, WY

July 3, 2021Dawes County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 3, 2021, 4:43 PM MDT for Dawes County, Nebraska. It was in force for 47 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: Jul 3, 2021, 4:43 PM MDT (22:43 UTC)
Expired: Jul 3, 2021, 5:30 PM MDT
In force: 47 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Dawes County, NE

The radar

The Rapid City radar (KUDX), 146 km from the middle of the area, began a volume at 22:46 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 3, 3:33 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 10.7 hours before the alert went out and 140 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 444 J/kg
Mixed-layer CIN: -308 J/kg
Mixed-layer LCL: 2214 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 54 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

927 
WUUS55 KCYS 032243
SVRCYS
NEC045-032330-
/O.NEW.KCYS.SV.W.0075.210703T2243Z-210703T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
443 PM MDT Sat Jul 3 2021

The National Weather Service in Cheyenne has issued a

* Severe Thunderstorm Warning for...
  Northeastern Dawes County in the Panhandle of Nebraska...

* Until 530 PM MDT.

* At 442 PM MDT, a severe thunderstorm was located over Chadron
  Airport, or near Chadron, moving east at 10 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...
  Chadron, Red Cloud Campground, Chadron Airport, Chadron Campground
  and Chadron St Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

&&

LAT...LON 4283 10326 4294 10321 4291 10288 4262 10294
TIME...MOT...LOC 2242Z 278DEG 9KT 4287 10312 

HAIL...1.00IN
WIND...60MPH
 
$$

Hammer

2 follow-up statements

666 
WWUS55 KCYS 032310
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
510 PM MDT Sat Jul 3 2021

NEC045-032330-
/O.CON.KCYS.SV.W.0075.000000T0000Z-210703T2330Z/
Dawes NE-
510 PM MDT Sat Jul 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM MDT
FOR NORTHEASTERN DAWES COUNTY...

At 510 PM MDT, a severe thunderstorm was located over Chadron
Airport, or near Chadron, moving southeast at 10 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...
Chadron, Red Cloud Campground, Chadron Airport, Chadron Campground
and Chadron St Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 4280 10321 4290 10313 4289 10289 4262 10294
TIME...MOT...LOC 2310Z 297DEG 8KT 4283 10308 

HAIL...1.00IN
WIND...60MPH
 
$$

Hammer

614 
WWUS55 KCYS 032322
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
522 PM MDT Sat Jul 3 2021

NEC045-032332-
/O.EXP.KCYS.SV.W.0075.000000T0000Z-210703T2330Z/
Dawes NE-
522 PM MDT Sat Jul 3 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DAWES COUNTY WILL
EXPIRE AT 530 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.

A Severe Thunderstorm Watch remains in effect until 1000 PM MDT for
the Panhandle of Nebraska.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Cheyenne.

LAT...LON 4280 10321 4290 10313 4289 10289 4262 10294
TIME...MOT...LOC 2322Z 278DEG 9KT 4283 10305 

$$

Hammer

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 3, 3:01 PM MDT	Severe Thunderstorm Warning	CYS	Scotts Bluff, Sioux	30 min
Jul 3, 3:06 PM MDT	Special Weather Statement	CYS	Box Butte	39 min
Jul 3, 3:42 PM MDT	Special Weather Statement	CYS	Kimball	48 min
Jul 3, 3:48 PM MDT	Severe Thunderstorm Warning	CYS	Kimball	31 min
Jul 3, 3:51 PM MDT	Special Weather Statement	CYS	Banner	39 min
Jul 3, 3:57 PM MDT	Special Weather Statement	CYS	Cheyenne	48 min
Jul 3, 4:18 PM MDT	Severe Thunderstorm Warning	CYS	Cheyenne	57 min
Jul 3, 4:43 PM MDT	Special Weather Statement	CYS	Cheyenne	47 min
Jul 3, 4:46 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Dawes, Sioux	28 min
Jul 3, 5:03 PM MDT	Special Weather Statement	CYS	Morrill	42 min
Jul 3, 5:15 PM MDT	Special Weather Statement	CYS	Dawes	30 min
Jul 3, 5:21 PM MDT	Special Weather Statement	CYS	Cheyenne	39 min
Jul 3, 5:29 PM MDT	Special Weather Statement	CYS	Dawes	31 min
Jul 3, 5:40 PM MDT	Special Weather Statement	CYS	Morrill	50 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2021 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.