Alert archive / Nebraska / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 21, NWS Cheyenne, WY

May 10, 2023Cheyenne County, Kimball County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at May 10, 2023, 3:17 AM MDT for Cheyenne County, Kimball County, Nebraska. It was in force for 58 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: May 10, 2023, 3:17 AM MDT (09:17 UTC)
Expired: May 10, 2023, 4:15 AM MDT
In force: 58 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

Counties Cheyenne County, NE, Kimball County, NE

The radar

The Cheyenne radar (KCYS), 143 km from the middle of the area, began a volume at 09:20 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
May 10, 3:30 AM MDT	TSTM WND GST 64	7 Wnw Lorenzo, NE	MESONET STATION FW8225 SIDNEY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 9.3 hours before the alert went out and 210 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1613 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: -55 m²/s²
0-3 km storm-relative helicity: -78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

As transmitted.

926 
WUUS55 KCYS 100917
SVRCYS
NEC033-105-101015-
/O.NEW.KCYS.SV.W.0021.230510T0917Z-230510T1015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
317 AM MDT Wed May 10 2023

The National Weather Service in Cheyenne has issued a

* Severe Thunderstorm Warning for...
  Cheyenne County in the Panhandle of Nebraska...
  Eastern Kimball County in the Panhandle of Nebraska...

* Until 415 AM MDT.

* At 317 AM MDT, severe thunderstorms were located along a line
  extending from near Kimball to 9 miles south of Potter to 8 miles
  west of Peetz to near North Sterling Reservoir, moving northeast at
  45 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Sidney, Kimball, Potter, Lodgepole, Dalton, Dix, Gurley, Sunol,
  Brownson, Colton, Lorenzo, Kimball Airport and Sidney Airport.

This includes Interstate 80 in Nebraska between mile markers 16 and
77.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4100 10262 4100 10370 4126 10377 4139 10345
      4140 10338 4143 10337 4144 10334 4144 10264
      4140 10263 4139 10261
TIME...MOT...LOC 0917Z 242DEG 41KT 4126 10364 4108 10334 4096 10328
4084 10329

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Hammer

3 follow-up statements

148 
WWUS55 KCYS 100945
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
345 AM MDT Wed May 10 2023

NEC033-105-101015-
/O.CON.KCYS.SV.W.0021.000000T0000Z-230510T1015Z/
Cheyenne NE-Kimball NE-
345 AM MDT Wed May 10 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 AM MDT
FOR CHEYENNE AND NORTHEASTERN KIMBALL COUNTIES...

At 343 AM MDT, severe thunderstorms were located along a line
extending from 12 miles north of Potter to near Brownson to near
Sidney Airport to 6 miles southeast of Lorenzo, moving northeast at
45 mph.

HAZARD...70 mph wind gusts.

SOURCE...Trained weather spotters. A wind gust to 64 MPH was 
         observed at an automated sensor southwest of Sidney at 330 
         AM MDT. 

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Sidney, Potter, Lodgepole, Dalton, Dix, Gurley, Colton, Sunol,
Brownson, Lorenzo and Sidney Airport.

This includes Interstate 80 in Nebraska between mile markers 24 and
77.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Cheyenne.

&&

LAT...LON 4100 10262 4100 10304 4119 10360 4132 10363
      4139 10345 4140 10338 4143 10337 4144 10334
      4144 10264 4140 10263 4139 10261
TIME...MOT...LOC 0943Z 242DEG 41KT 4140 10329 4122 10299 4110 10293
4098 10294

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Hammer

944 
WWUS55 KCYS 101000
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
400 AM MDT Wed May 10 2023

NEC105-101010-
/O.CAN.KCYS.SV.W.0021.000000T0000Z-230510T1015Z/
Kimball NE-
400 AM MDT Wed May 10 2023

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN KIMBALL COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 4100 10262 4100 10304 4116 10302 4127 10315
      4132 10333 4144 10334 4144 10264 4140 10263
      4139 10261
TIME...MOT...LOC 1000Z 242DEG 41KT 4149 10308 4130 10278 4118 10272
4106 10273

$$

NEC033-101015-
/O.CON.KCYS.SV.W.0021.000000T0000Z-230510T1015Z/
Cheyenne NE-
400 AM MDT Wed May 10 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 AM MDT
FOR CHEYENNE COUNTY...

At 400 AM MDT, severe thunderstorms were located along a line
extending from 7 miles northwest of Dalton to 10 miles east of Gurley
to near Sunol to 7 miles southwest of Lodgepole, moving northeast at
45 mph.

HAZARD...70 mph wind gusts.

SOURCE...Trained weather spotters.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Sidney, Lodgepole, Dalton, Gurley, Colton, Sunol and Sidney Airport. 

This includes Interstate 80 in Nebraska between mile markers 56 and
77.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Cheyenne.

&&

LAT...LON 4100 10262 4100 10304 4116 10302 4127 10315
      4132 10333 4144 10334 4144 10264 4140 10263
      4139 10261
TIME...MOT...LOC 1000Z 242DEG 41KT 4149 10308 4130 10278 4118 10272
4106 10273

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Hammer

672 
WWUS55 KCYS 101011
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
411 AM MDT Wed May 10 2023

NEC033-101021-
/O.EXP.KCYS.SV.W.0021.000000T0000Z-230510T1015Z/
Cheyenne NE-
411 AM MDT Wed May 10 2023

...THE SEVERE THUNDERSTORM WARNING FOR CHEYENNE COUNTY WILL EXPIRE AT
415 AM 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.

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

LAT...LON 4100 10262 4100 10304 4116 10302 4127 10315
      4132 10333 4144 10334 4144 10264 4140 10263
      4139 10261
TIME...MOT...LOC 1011Z 242DEG 41KT 4154 10295 4135 10265 4123 10259
4111 10260

$$

Hammer

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 7:02 PM MDT	Severe Thunderstorm Warning	CYS	Banner	28 min
May 9, 7:23 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Kimball	52 min
May 9, 7:51 PM MDT	Tornado Warning	CYS	Banner, Kimball	24 min
May 9, 7:59 PM MDT	Severe Thunderstorm Warning	CYS	Banner	46 min
May 9, 8:15 PM MDT	Tornado Warning	CYS	Banner, Kimball	11 min
May 9, 8:43 PM MDT	Severe Thunderstorm Warning	CYS	Banner	32 min
May 9, 9:00 PM MDT	Tornado Warning	CYS	Banner	30 min
May 9, 9:25 PM MDT	Severe Thunderstorm Warning	CYS	Banner	38 min
May 9, 10:57 PM MDT	Severe Thunderstorm Warning	CYS	Scotts Bluff	48 min
May 9, 11:43 PM MDT	Severe Thunderstorm Warning	CYS	Scotts Bluff	25 min
May 9, 11:49 PM MDT	Flash Flood Warning	CYS	Banner, Scotts Bluff	3 hr
May 10, 1:19 AM MDT	Special Weather Statement	CYS	Cheyenne	26 min
May 10, 1:51 AM MDT	Severe Thunderstorm Warning	CYS	Cheyenne	39 min
May 10, 3:04 AM MDT	Special Weather Statement	CYS	Cheyenne, Kimball	41 min
May 10, 11:47 AM MDT	Flood Watch	CYS	Banner, Box Butte, Cheyenne, Dawes, Kimball, Morrill and 2 more	48 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 2023 Every severe thunderstorm warning in 2023

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.