Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 25, NWS Cheyenne, WY

May 26, 2021Banner County, Kimball County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at May 26, 2021, 6:21 PM MDT for Banner County, Kimball County, Nebraska. It was in force for 13 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 26, 2021, 6:21 PM MDT (00:21 UTC)
Expired: May 26, 2021, 6:34 PM MDT
In force: 13 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Tornado: Possible
Hail: 1.5 in
Wind: 60.0 mph

Counties Banner County, NE, Kimball County, NE

The radar

The Cheyenne radar (KCYS), 97 km from the middle of the area, began a volume at 00:22 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
May 26, 1:27 PM MDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.4 hours before the alert went out and 179 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: 251 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 2758 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

255 
WUUS55 KCYS 270021
SVRCYS
NEC007-105-270100-
/O.NEW.KCYS.SV.W.0025.210527T0021Z-210527T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
621 PM MDT Wed May 26 2021

The National Weather Service in Cheyenne has issued a

* Severe Thunderstorm Warning for...
  Northeastern Kimball County in the Panhandle of Nebraska...
  Southern Banner County in the Panhandle of Nebraska...

* Until 700 PM MDT.

* At 621 PM MDT, a severe thunderstorm was located near Harrisburg,
  or 18 miles northwest of Kimball, moving east at 30 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Harrisburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4136 10392 4156 10392 4163 10339 4129 10340
TIME...MOT...LOC 0021Z 266DEG 24KT 4148 10380 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
 
$$

Trudel

1 follow-up statement

731 
WWUS55 KCYS 270034
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
634 PM MDT Wed May 26 2021

NEC007-105-270044-
/O.CAN.KCYS.SV.W.0025.000000T0000Z-210527T0100Z/
Kimball NE-Banner NE-
634 PM MDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN KIMBALL AND
SOUTHERN BANNER COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.  However gusty winds are still possible with this
thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
the Panhandle of Nebraska.

LAT...LON 4136 10392 4156 10392 4163 10339 4129 10340
TIME...MOT...LOC 0033Z 266DEG 24KT 4149 10368 

$$

Trudel

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 6:08 PM MDT	Special Weather Statement	CYS	Banner	37 min
May 26, 6:10 PM MDT	Special Weather Statement	CYS	Banner	35 min
May 26, 6:12 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte	49 min
May 26, 7:49 PM MDT	Special Weather Statement	CYS	Box Butte	41 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.