Alert archive / Nebraska / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 70, NWS Cheyenne, WY

July 9, 1992Sheridan County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 9, 1992, 2:04 PM MDT for Sheridan County, Nebraska. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1992, 2:04 PM MDT (20:04 UTC)
Expired
Jul 9, 1992, 2:30 PM MDT
In force
26 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Sheridan County, NE

The nearest sounding before it

Rapid City, SD (KRAP), launched 12:00Z, 8.1 hours before the alert went out and 178 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, Rapid City, SD at 12:00Z on 1992-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Rapid City, SD at 12:00Z on 1992-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -103 square meters per square second.1939587897117136Sfc1 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
756 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-103 m²/s²
0-3 km storm-relative helicity
-40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 9, 12:44 PM MDT, 1 hour 20 minutes before
NEZ001-005-011-092000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
1245 PM MDT THU JUL 9 1992

...THUNDERSTORMS IN WESTERN NEBRASKA PANHANDLE...

AT 1243 PM MDT...THUNDERSTORMS HAVE ENTERED THE WESTERN NEBRASKA
PANHANDLE FROM WYOMING.  THE STRONGEST STORM WAS LOCATED 35 MILES WEST
OF CHADRON NEBRASKA...JUST 8 MILES NORTH OF HARRISON IN SIOUX COUNTY.
OTHER STORMS WERE LOCATED 30 MILES SOUTH AND 30 MILES NORTHWEST OF
SCOTTSBLUFF.  OTHER SCATTERED SHOWERS WERE ALONG THE WYOMING/NEBRASKA
STATELINE FROM INTERESTATE 80 IN THE SOUTHERN PANHANDLE...NORTHWARD
TO THE SOUTH DAKOTA/NEBRASKA STATELINE.

ALL PRECIPITATION WAS MOVING EAST AT 20 MPH.

BRIEF HEAVY RAIN...GUSTY WINDS...AND SMALL HAIL ARE POSSIBLE WITH THESE
SHOWERS AND THUNDERSTORMS IN THE WESTERN TWO-THIRDS OF THE NEBRASKA
PANHANDLE UNTIL 200 PM MDT.
PFEIFFER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 1:04 PM MDTSevere Thunderstorm WarningCYSDawes26 min
Jul 9, 1:28 PM MDTTornado WarningCYSDawes32 min
Jul 9, 2:30 PM MDTSevere Thunderstorm WarningCYSSheridan25 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.