Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 122, NWS North Platte, NE

August 7, 1994Holt County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 7, 1994, 5:59 PM CDT for Holt County, Nebraska. It was in force for 36 min.

The area

The counties it named.

The facts

Issued
Aug 7, 1994, 5:59 PM CDT (22:59 UTC)
Expired
Aug 7, 1994, 6:35 PM CDT
In force
36 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Holt County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.0 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 12:00Z on 1994-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 84 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 12:00Z on 1994-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939Sfc1 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
84 J/kg
Mixed-layer CIN
-683 J/kg
Mixed-layer LCL
2520 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
141 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, Aug 7, 5:49 PM CDT, 10 minutes before
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Special weather statement, Aug 7, 5:49 PM CDT, 10 minutes before
NEZ023>025-035>038-057>059-072350-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
550 PM CDT (450 PM MDT) SUN AUG 7 1994

...SEVERE THUNDERSTORM WATCH FOR ALL OF SOUTHWEST AND WEST CENTRAL
   NEBRASKA UNTIL MIDNIGHT CDT EXCEPT FOR CHASE...HAYES AND FRONTIER
   COUNTIES...

VERY STRONG THUNDERSTORMS WERE LOCATED IN THE PANHANDLE JUST WEST OF
GRANT COUNTY OF WEST CENTRAL NEBRASKA.  THESE STORMS WERE ABOUT 25
MILES WEST OF ASHBY.  ASHBY IS ABOUT 40 MILES EAST OF ALLIANCE.  THESE
STORMS ARE MOVING EAST AT 15 MILES AN HOUR AND WILL BE MOVING INTO THE
ASHBY...HYANNIS AND WHITMAN AREAS BEFORE 530 PM MDT.  RESIDENTS OF THESE
COMMUNITIES SHOULD BE PREPARED TO MOVE TO A PLACE OF SAFETY AS THESE
STORMS APPROACH.

SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...GUSTY WINDS...DEADLY
LIGHTNING AND VERY HEAVY DOWNPOURS OF RAIN.

AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING
SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY.

MONSON



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The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 7, 5:05 PM CDTTornado WarningLBFCherry25 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1994Every severe thunderstorm warning in 1994

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.