Alert archive / Nebraska / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 113, NWS Cheyenne, WY

June 22, 2018Cheyenne County, Kimball County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 22, 2018, 7:25 PM MDT for Cheyenne County, Kimball County, Nebraska. It was in force for 18 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 22, 2018, 7:25 PM MDT (01:25 UTC)
Expired: Jun 22, 2018, 7:43 PM MDT
In force: 18 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cheyenne County, NE, Kimball County, NE

The radar

The Cheyenne radar (KCYS), 94 km from the middle of the area, began a volume at 01:25 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 nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 1.4 hours before the alert went out and 151 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: 380 J/kg
Mixed-layer CIN: -111 J/kg
Mixed-layer LCL: 3351 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

130 
WUUS55 KCYS 230125
SVRCYS
NEC033-105-230200-
/O.NEW.KCYS.SV.W.0113.180623T0125Z-180623T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
725 PM MDT FRI JUN 22 2018

The National Weather Service in Cheyenne has issued a

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

* Until 800 PM MDT.

* At 725 PM MDT, a severe thunderstorm was located over Oliver
  Reservoir, or near Kimball, moving southeast at 40 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, Oliver Campground, Oliver Reservoir, Kimball Airport and
  Bushnell.

This includes Interstate 80 in Nebraska between mile markers 12 and
28.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4118 10382 4123 10391 4134 10379 4117 10338
      4101 10337
TIME...MOT...LOC 0125Z 296DEG 36KT 4124 10379 

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

Mokry

2 follow-up statements

397 
WWUS55 KCYS 230136
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
736 PM MDT FRI JUN 22 2018

NEC033-105-230200-
/O.CON.KCYS.SV.W.0113.000000T0000Z-180623T0200Z/
Cheyenne NE-Kimball NE-
736 PM MDT FRI JUN 22 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM MDT
FOR SOUTHWESTERN CHEYENNE AND SOUTHEASTERN KIMBALL COUNTIES...

At 736 PM MDT, a severe thunderstorm was located over Kimball
Airport, or over Kimball, moving southeast at 40 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 and Kimball Airport. 

This includes Interstate 80 in Nebraska between mile markers 18 and
28.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4113 10369 4120 10372 4130 10370 4117 10338
      4101 10337
TIME...MOT...LOC 0136Z 296DEG 36KT 4119 10366 

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

Mokry

814 
WWUS55 KCYS 230143
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
743 PM MDT FRI JUN 22 2018

NEC033-105-230152-
/O.CAN.KCYS.SV.W.0113.000000T0000Z-180623T0200Z/
Cheyenne NE-Kimball NE-
743 PM MDT FRI JUN 22 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CHEYENNE AND
SOUTHEASTERN KIMBALL COUNTIES IS CANCELLED...
                
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 has been cancelled.

LAT...LON 4113 10369 4120 10372 4130 10370 4117 10338
      4101 10337
TIME...MOT...LOC 0138Z 296DEG 36KT 4116 10358 

$$

Mokry

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 6:11 PM MDT	Special Weather Statement	CYS	Scotts Bluff	34 min
Jun 22, 6:41 PM MDT	Special Weather Statement	CYS	Morrill	34 min
Jun 22, 6:57 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Kimball	33 min
Jun 23, 4:01 PM MDT	Special Weather Statement	CYS	Sioux	59 min
Jun 23, 4:59 PM MDT	Special Weather Statement	CYS	Sioux	61 min
Jun 23, 5:29 PM MDT	Special Weather Statement	CYS	Sioux	61 min
Jun 23, 5:38 PM MDT	Severe Thunderstorm Warning	CYS	Scotts Bluff	52 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2018 Every severe thunderstorm warning in 2018

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.