Alert archive / Nebraska / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 4, NWS Cheyenne, WY

May 15, 1996Morrill County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at May 15, 1996, 5:22 PM MDT for Morrill County, Nebraska. It was in force for 53 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
May 15, 1996, 5:22 PM MDT (23:22 UTC)
Expired
May 15, 1996, 6:15 PM MDT
In force
53 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Morrill County, NE

The radar

The Cheyenne radar (KCYS), 162 km from the middle of the area, began a volume at 23:22 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 12:00Z, 11.4 hours before the alert went out and 206 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 12:00Z on 1996-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 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 12:00Z on 1996-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2273 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-14 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, in the capitals the NWS used until 2016.

000 
TTAA00 KCYS 152324
SVRCYS
NEC123-160015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
522 PM MDT WED MAY 15 1996
 
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED

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, May 15, 4:17 PM MDT, 1 hour 5 minutes before
NEZ019-020-021-152315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
415 PM MDT WED MAY 15 1996

...SHOWERS AND THUNDERSTORMS ARE MOVING ACROSS THE NEBRASKA PANHANDLE...

SCATTERED SHOWERS AND THUNDERSTORMS HAVE DEVLOPED AGAIN THIS AFTERNOON
IN THE WESTERN NEBRASKA PANHANDLE.  THESE STORMS WERE MOVING
NORTHEAST AROUND 35 MILES AN HOUR.  THE STRONGEST WERE IN CENTRAL AND
NORTHERN BANNER COUNTY...BETWEEN HARRISBURG AND THE SCOTTS BLUFF
COUNTY LINE.  THEY SHOULD MOVE INTO WESTERN MORRILL COUNTY BY 430 PM
MDT.

SMALL HAIL ALONG WITH BRIEF STRONG GUSTY WINDS AND DANGEROUS LIGHTNING
CAN BE EXPECTED WITH THESE STORMS.  TAKE SHELTER IN DOORS IF A STORM
APPROACHES.

CGB
Special weather statement, May 15, 4:36 PM MDT, 46 minutes before
NEZ001-002-003-152330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
434 PM MDT WED MAY 15 1996

A LINE OF THUNDERSTORMS HAS INTENSIFIED OVER WEST CENTRAL BANNER
COUNTY NEBRASKA TO SOUTHWEST SIOUX COUNTY NEBRASKA AT 430 PM. STORMS
WERE MOVING NORTHEAST AT 35 MILES AN HOUR.  ONE STORM WILL PASS OVER
CRAWFORD AROUND 440 PM AND REACH THE CITY OF CHADRON BETWEEN 5 TO
515 PM.

SMALL HAIL ALONG WITH STRONG BUT BRIEF GUSTY WINDS TO 4<0 MILES AN HOUR
AND DANGEROUS LIGHTNING CAN BE EXPECTED WITH THESE STORMS.  TAKE
SHELTER IN DOORS WHEN A STORM APPROACHES.

PAL

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 4:53 PM MDTSevere Thunderstorm WarningCYSDawes67 min
May 15, 5:56 PM MDTSevere Thunderstorm WarningCYSDawes34 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 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.