Alert archive / Nebraska / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 21, NWS Cheyenne, WY

May 22, 2008Cheyenne County, Kimball County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at May 22, 2008, 12:34 AM MDT for Cheyenne County, Kimball County, Nebraska. It was in force for 26 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 22, 2008, 12:34 AM MDT (06:34 UTC)
Expired
May 22, 2008, 1:00 AM MDT
In force
26 min
Issued by
NWS Cheyenne, WY
Area
Storm-based polygon

Counties Cheyenne County, NE, Kimball County, NE

The radar

The Cheyenne radar (KCYS), 106 km from the middle of the area, began a volume at 06:36 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.

IssuedProductOfficeLasted
Jan 7, 12:52 PM MSTTornado WatchSPC146 days

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 6.6 hours before the alert went out and 153 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-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2008-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2008-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
23 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
4811 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS55 KCYS 220634
SVRCYS
NEC033-105-220700-
/O.NEW.KCYS.SV.W.0021.080522T0634Z-080522T0700Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
1234 AM MDT THU MAY 22 2008

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN CHEYENNE COUNTY IN THE PANHANDLE OF NEBRASKA...
  KIMBALL COUNTY IN THE PANHANDLE OF NEBRASKA...
  THIS INCLUDES THE CITY OF KIMBALL...

* UNTIL 100 AM MDT

* AT 1226 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 15
  MILES SOUTHEAST OF KIMBALL AIRPORT...OR 18 MILES SOUTHEAST OF
  KIMBALL...AND MOVING NORTH AT 38 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DIX AND KIMBALL AIRPORT BY 1250 AM...
  BENNETT RESERVOIR AND KIMBALL BY 1255 AM...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS...LARGE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING.
TAKE COVER IN A STURDY STRUCTURE UNTIL THE STORM PASSES.

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN
CHEYENNE AT 1-800-269-6220.

LAT...LON 4138 10384 4136 10304 4100 10308 4101 10394
TIME...MOT...LOC 0634Z 171DEG 33KT 4107 10353

$$

SOWKO
2 follow-up statements
000 
WWUS55 KCYS 220646
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1246 AM MDT THU MAY 22 2008

NEC033-105-220700-
/O.CON.KCYS.SV.W.0021.000000T0000Z-080522T0700Z/
CHEYENNE NE-KIMBALL NE-
1246 AM MDT THU MAY 22 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM MDT
FOR KIMBALL AND WESTERN CHEYENNE COUNTIES...

AT 1240 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 10 MILES SOUTH OF I-80 MM 13 TO BROWNSON...OR ALONG A
LINE EXTENDING FROM 17 MILES SOUTHWEST OF KIMBALL TO 7 MILES WEST OF
SIDNEY...MOVING NORTH AT 38 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  BENNETT RESERVOIR...OLIVER RESERVOIR...KIMBALL AND BUSHNELL BY 1255
  AM...

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN
CHEYENNE AT 1-800-269-6220.

LAT...LON 4138 10384 4136 10304 4100 10308 4101 10394
TIME...MOT...LOC 0646Z 171DEG 33KT 4114 10388 4124 10313

$$

SOWKO
000 
WWUS55 KCYS 220658
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1258 AM MDT THU MAY 22 2008

NEC033-105-220708-
/O.EXP.KCYS.SV.W.0021.000000T0000Z-080522T0700Z/
CHEYENNE NE-KIMBALL NE-
1258 AM MDT THU MAY 22 2008

...THE SEVERE THUNDERSTORM WARNING FOR KIMBALL AND WESTERN CHEYENNE
COUNTIES HAS EXPIRED...

THE STORM HAS DECREASED IN INTENSITY AND IS NO LONGER SEVERE.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN
CHEYENNE AT 1-800-269-6220.

LAT...LON 4138 10384 4136 10304 4100 10308 4101 10394
TIME...MOT...LOC 0658Z 171DEG 33KT 4125 10390 4135 10315

$$

SOWKO

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 7:58 AM MDTDense Fog AdvisoryCYSKimball2 hr
May 22, 10:18 AM MDTDense Fog AdvisoryCYSKimball102 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2008Every severe thunderstorm warning in 2008

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.