Alert archive / Nebraska / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 166, NWS Cheyenne, WY

August 9, 1996Banner County, Nebraska; Laramie County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 9, 1996, 6:17 PM MDT for Banner County, Nebraska; Laramie County, Wyoming. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 9, 1996, 6:17 PM MDT (00:17 UTC)
Expired
Aug 9, 1996, 7:00 PM MDT
In force
43 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

Counties Banner County, NE, Laramie County, WY

The radar

The Cheyenne radar (KCYS), 59 km from the middle of the area, began a volume at 00:21 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 (KDNR), launched 00:00Z, 0.3 hours before the alert went out and 191 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 1996-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 625 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 1996-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -26 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
625 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
2579 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
-26 m²/s²
0-3 km storm-relative helicity
37 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 
TTAA00 KCYS 100020
SVRCYS
NEC007-WYC021-100100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
617 PM MDT FRI AUG 9 1996
 
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN THE NEBRASKA PANHANDLE
 
   ...SOUTHWEST BANNER COUNTY
 
IN SOUTHEAST WYOMING
 
   ...NORTHEASTERN LARAMIE COUNTY
 
THIS INCLUDES THE CITY OF ALBIN.
 
...THIS WARNING REPLACES PREVIOUS WARNINGS FOR SOUTHEAST GOSHEN...
NORTHEAST LARAMIE...SOUTHWEST SCOTTS BLUFF AND NORTHWEST BANNER
COUNTIES...
 
AT 617 PM...DOPPLER RADAR INDCATED A SEVERE THUNDERSTORM
CENTERED OVER NORTHEAST LARAMIE COUNTY...ABOUT 32 MILES TO THE
NORTHEAST OF CHEYENNE.  THIS STORM HAS MOVED LITTLE SINCE 515
PM...BUT WAS STARTING TO SHOW A EAST MOVEMENT AT 15 MPH.
 
THIS STORM WAS LIKELY PRODUCING HAIL...UP TO ONE INCH IN
DIAMETER...WIND GUSTS TO 50 MPH AND HEAVY RAIN.  DOPPLER RADAR
ESTIMATES HAVE BEEN MORE THAN 2 INCHES IN AN AREA TO THE
NORTHWEST OF ALBIN.
 
DAMAGING WINDS AND LARGE HAIL ARE LIKELY.  GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS!
 
WCJIN-WYSE
WEILAND

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Aug 9, 3:47 PM MDT, 2 hours 30 minutes before
NEZ001-019-020-054-WYZ059-060-067>070-092230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
345 PM MDT FRI AUG 9 1996

AT 330 PM MDT...DOPPLER RADAR INDICATED  NUMBER OF THUNDERSTORMS FROM
WESTERN CONVERSE COUNTY INTO WESTERN AND SOUTHCENTRAL SOUTHCENTRAL
PLATTE COUNTY.

THE STORMS IN WESTERN CONVERSE COUNTY WERE LOCATED 30 MILES WEST NORTH
WEST OF DOUGLAS AND 25 MILE NORTH NORTHWEST OF DOUGLAS.  THE STORMS
WERE MOVING EAST AT 15 MILES AN HOUR.

STORMS IN PLATTE COUNTY WERE LOCATED 20 MILES NORTH NORTHWEST OF
WHEATLAND...17 MILES WEST OF WHEATLAND AND 18 MILES SOUTH OF WHEATLAND.
THE STORMS WERE MOVING SOUTHEAST AT 15 TO 20 MILES AN HOUR.  A SEVERE
THUNDERSTORM WARNING HAS BEEN ISSUED ON THE STORM 18 MILES SOUTH OF
WHEATLAND...FOR POSSIBLE LARGE HAIL UNTIL 445 PM.

OTHER STORMS MAY PRODUCE SMALL HAIL...BRIEF HEAVY RAINS AND DANGEROUS
LIGHTNING UNTIL 445 PM.

WCJIN-WYSE
PAL
Special weather statement, Aug 9, 5:46 PM MDT, 31 minutes before
WYZ060-068-NEZ001-100030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
545 PM MDT FRI AUG 9 1996

...STRONG THUNDERSTORMS HAVE DEVELOPED OVER CENTRAL NIOBRARA COUNTY
EARLY THIS EVENING...

AT 540 PM...STRONG THUNDERSTORMS WERE LOCATED OVER THE CENTRAL PART
OF NIOBRARA COUNTY.  AT THAT TIME...THE STORMS WERE FROM 10 NORTH OF
LUSK TO NEAR LUSK.  THESE STORMS WERE MOVING TO THE EAST AT 20 MPH.

AT 543 PM...HEAVY RAIN AND PEA TO MARBLE SIZED HAIL WERE REPORTED JUST
TO THE NORTH OF LUSK.  THESE STORMS MAY PRODUCE HEAVY RAIN...SMALL
HAIL...WIND GUSTS TO 40 MPH AND DANGEROUS LIGHTNING.

PEOPLE IN CENTRAL AND EASTERN NIOBRARA COUNTY SHOULD BE AWARE OF THE
THUNDERSTORMS.  IF A THUNDERSTORM APPROACHES...MOVE TO A SAFE SHELTER.

WCJIN-WYNE
WEILAND

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 6:36 PM MDTSevere Thunderstorm WarningCYSSioux54 min
Aug 9, 6:45 PM MDTSevere Thunderstorm WarningCYSBanner, Morrill45 min
Aug 9, 6:45 PM MDTSevere Thunderstorm WarningCYSKimball45 min
Aug 9, 7:00 PM MDTSevere Thunderstorm WarningCYSDawes60 min
Aug 9, 7:12 PM MDTSevere Thunderstorm WarningCYSBox Butte33 min
Aug 9, 7:29 PM MDTSevere Thunderstorm WarningCYSCheyenne, Kimball, Morrill46 min
Aug 9, 7:48 PM MDTSevere Thunderstorm WarningCYSDawes42 min
Aug 9, 8:14 PM MDTSevere Thunderstorm WarningCYSCheyenne46 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1996Severe Thunderstorm Warnings in Wyoming, 1996Every severe thunderstorm warning in 1996

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.