Alert archive / Nebraska / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 252, NWS Cheyenne, WY

August 16, 20264 counties in Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 16, 2026, 6:11 PM MDT for 4 counties in Nebraska. It was in force for 49 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: Aug 16, 2026, 6:11 PM MDT (00:11 UTC)
Expired: Aug 16, 2026, 7:00 PM MDT
In force: 49 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Banner County, NE, Cheyenne County, NE, Kimball County, NE, Morrill County, NE

The radar

The Cheyenne radar (KCYS), 112 km from the middle of the area, began a volume at 00:13 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
Aug 16, 2:06 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.2 hours before the alert went out and 246 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: 334 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 1497 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 113 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

752 
WUUS55 KCYS 170011
SVRCYS
NEC007-033-105-123-170100-
/O.NEW.KCYS.SV.W.0252.260817T0011Z-260817T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
611 PM MDT Sun Aug 16 2026

The National Weather Service in Cheyenne has issued a

* Severe Thunderstorm Warning for...
  Northwestern Cheyenne County in the Panhandle of Nebraska...
  Northeastern Kimball County in the Panhandle of Nebraska...
  Southwestern Morrill County in the Panhandle of Nebraska...
  Southeastern Banner County in the Panhandle of Nebraska...

* Until 700 PM MDT.

* At 611 PM MDT, a severe thunderstorm was located 7 miles southeast
  of Harrisburg, or 15 miles north of Kimball, moving east at 25 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.

* This severe thunderstorm will remain over mainly rural areas of
  northwestern Cheyenne, northeastern Kimball, southwestern Morrill
  and southeastern Banner Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4140 10373 4150 10370 4158 10315 4125 10330
TIME...MOT...LOC 0011Z 269DEG 24KT 4146 10363 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Brauer

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 16, 6:00 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Scotts Bluff	45 min
Aug 16, 6:34 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Morrill, Scotts Bluff	41 min
Aug 16, 6:55 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Cheyenne, Kimball, Morrill, Scotts Bluff	50 min
Aug 16, 7:08 PM MDT	Areal Flood Advisory	CYS	Banner, Cheyenne, Morrill	3 hr
Aug 16, 7:11 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Morrill, Scotts Bluff	49 min
Aug 16, 7:21 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Cheyenne, Kimball	39 min
Aug 16, 7:43 PM MDT	Severe Thunderstorm Warning	CYS	Cheyenne, Morrill	14 min
Aug 16, 7:55 PM MDT	Severe Thunderstorm Warning	CYS	Morrill	17 min
Aug 17, 3:08 PM MDT	Special Weather Statement	CYS	Sioux	37 min
Aug 17, 3:46 PM MDT	Special Weather Statement	CYS	Box Butte	44 min
Aug 17, 4:18 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Dawes, Sioux	42 min
Aug 17, 4:26 PM MDT	Special Weather Statement	CYS	Box Butte	34 min
Aug 17, 4:34 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Dawes	41 min
Aug 17, 4:46 PM MDT	Special Weather Statement	CYS	Dawes	44 min
Aug 17, 4:53 PM MDT	Special Weather Statement	CYS	Dawes	37 min
Aug 17, 5:31 PM MDT	Special Weather Statement	CYS	Dawes	29 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2026 Every severe thunderstorm warning in 2026

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.