Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 65, NWS Cheyenne, WY

June 19, 20214 counties in Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 19, 2021, 2:42 PM MDT for 4 counties in Nebraska. It was in force for 36 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: Jun 19, 2021, 2:42 PM MDT (20:42 UTC)
Expired: Jun 19, 2021, 3:18 PM MDT
In force: 36 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), 116 km from the middle of the area, began a volume at 20:44 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
Jun 19, 1:44 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 8.7 hours before the alert went out and 166 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: 2627 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

675 
WUUS55 KCYS 192042
SVRCYS
NEC007-033-105-123-192130-
/O.NEW.KCYS.SV.W.0065.210619T2042Z-210619T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
242 PM MDT Sat Jun 19 2021

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 330 PM MDT.

* At 241 PM MDT, severe thunderstorms were located along a line
  extending from 13 miles southwest of Redington to near Kimball,
  moving east at 15 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...
  Kimball, Dix and Kimball Airport. 

This includes Interstate 80 in Nebraska between mile markers 14 and
34.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4150 10307 4116 10348 4119 10379 4126 10379
      4150 10349
TIME...MOT...LOC 2041Z 278DEG 14KT 4144 10348 4128 10372 

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

Brothers

2 follow-up statements

884 
WWUS55 KCYS 192101
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
301 PM MDT Sat Jun 19 2021

NEC007-033-105-123-192130-
/O.CON.KCYS.SV.W.0065.000000T0000Z-210619T2130Z/
Cheyenne NE-Kimball NE-Morrill NE-Banner NE-
301 PM MDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM MDT
FOR NORTHWESTERN CHEYENNE...NORTHEASTERN KIMBALL...SOUTHWESTERN
MORRILL AND SOUTHEASTERN BANNER COUNTIES...

At 300 PM MDT, severe thunderstorms were located along a line
extending from 11 miles north of Potter to near Dix, 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.

Locations impacted include...
Kimball, Dix and Kimball Airport. 

This includes Interstate 80 in Nebraska between mile markers 15 and
34.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4150 10307 4116 10348 4119 10379 4135 10347
      4150 10336
TIME...MOT...LOC 2100Z 290DEG 23KT 4138 10330 4122 10354 

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

Brothers

389 
WWUS55 KCYS 192118
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
318 PM MDT Sat Jun 19 2021

NEC007-033-105-123-192128-
/O.CAN.KCYS.SV.W.0065.000000T0000Z-210619T2130Z/
Cheyenne NE-Kimball NE-Morrill NE-Banner NE-
318 PM MDT Sat Jun 19 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CHEYENNE...
NORTHEASTERN KIMBALL...SOUTHWESTERN MORRILL AND SOUTHEASTERN BANNER
COUNTIES IS CANCELLED...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has
been cancelled.

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

LAT...LON 4150 10307 4116 10348 4119 10379 4135 10347
      4150 10336
TIME...MOT...LOC 2115Z 278DEG 14KT 4137 10322 4121 10346 

$$

Brothers

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 8:13 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Kimball	47 min
Jun 19, 1:41 PM MDT	Special Weather Statement	CYS	Banner	49 min
Jun 19, 2:04 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Morrill, Scotts Bluff	41 min
Jun 19, 2:23 PM MDT	Special Weather Statement	CYS	Kimball	52 min
Jun 19, 2:38 PM MDT	Special Weather Statement	CYS	Box Butte	52 min
Jun 19, 2:46 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Morrill	17 min
Jun 19, 2:53 PM MDT	Special Weather Statement	CYS	Morrill	37 min
Jun 19, 3:20 PM MDT	Special Weather Statement	CYS	Cheyenne	55 min
Jun 19, 3:31 PM MDT	Severe Thunderstorm Warning	CYS	Cheyenne	59 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.