Alert archive / Nebraska / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 66, NWS Cheyenne, WY

July 6, 1992Morrill County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 6, 1992, 7:34 PM MDT for Morrill County, Nebraska. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Jul 6, 1992, 7:34 PM MDT (01:34 UTC)
Expired
Jul 6, 1992, 8:00 PM MDT
In force
26 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Morrill County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.6 hours before the alert went out and 211 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, N. Platte/Lee Bi, NE at 00:00Z on 1992-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2185 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, N. Platte/Lee Bi, NE at 00:00Z on 1992-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
2185 J/kg
Mixed-layer CIN
-278 J/kg
Mixed-layer LCL
1227 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Jul 6, 2:49 PM MDT, 4 hours 45 minutes before
NEZ001-005-011-062140-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
249 PM MDT MON JUL 6 1992

...THUNDERSTORMS HAVE FORMED OVER THE SOUTHERN PANHANDLE...

AT 247 PM MDT...RADAR INDICTED A FEW THUNDERSTORMS WERE OVER THE
SOUTHERN PART OF THE NEBRASKA PANHANDLE.  THE THUNDERSTORMS WERE LOCATED
15 MILES NORTHEAST OF SIDNEY...AND 12 MILES EAST OF SIDNEY...OVER
EASTERN CHEYENNE COUNTY.  THE STORMS WERE MOVING EAST AT 30 MPH.

BR'IEF HEAVY RAIN...SMALL HAIL AND DEADLY LIGHTING WILL BE POSSIBLE WITH
THESE STORMS OVER DEUEL...EASTERN CHEYENNE AND SOUTHERN GARDEN COUNTIES
OF THE NEBRASKA PANHANDLE UNTIL 340 PM MDT.
EMANUEL
Special weather statement, Jul 6, 4:28 PM MDT, 3 hours 6 minutes before
NEZ001-005-011-070000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
428 PM MDT MON JUL 6 1992

...THUNDERSTORMS OVER GARDEN COUNTY...

AT 425 PM MDT...RADAR INDICTED AN AREA OF THUNDERSTORMS OVER GARDEN
COUNTY...JUST NORTH OF OSHKOSH.  THE THUNDERSTORMS WERE LOCATED 36 MILES
NORTHEAST OF SIDNEY...OR A FEW MILES NORTH OF OSHKOSH.  OTHER SHOWERS OR
THUNDERSTORMS WERE IN EASTERN WYOMING AND WILL MOVE INTO SIOUX COUNTY
BY 5 PM.
~
THE SHOWERS AND STORMS WERE MOVING EAST AT 35 MPH.

BRIEF HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTNING WILL BE POSSIBLE
WITH THESE STORMS OVER GARDEN AND SIOUX COUNTIES UNTIL AROUND 6 PM MDT.
KYLE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 6:22 PM MDTSevere Thunderstorm WarningCYSBox Butte38 min
Jul 6, 6:49 PM MDTSevere Thunderstorm WarningCYSSheridan26 min
Jul 6, 7:13 PM MDTTornado WarningCYSSheridan17 min
Jul 6, 8:00 PM MDTSevere Thunderstorm WarningCYSMorrill30 min
Jul 6, 8:31 PM MDTSevere Thunderstorm WarningCYSGarden, Morrill29 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1992Every severe thunderstorm warning in 1992

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.