Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 100, NWS Cheyenne, WY

August 11, 1990Garden County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 11, 1990, 8:05 PM MDT for Garden County, Nebraska. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Aug 11, 1990, 8:05 PM MDT (02:05 UTC)
Expired
Aug 11, 1990, 8:50 PM MDT
In force
45 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Garden County, NE

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.1 hours before the alert went out and 155 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 1990-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 400 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 1990-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
400 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
975 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
61 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

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 11, 2:46 PM MDT, 5 hours 19 minutes before
NEZ001-005-011-122130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
245 PM MDT FRI AUG 10 1990

...SEVERE THUNDERSTORM WATCH FOR THE NEBRASKA PANHANDLE UNTIL 800 PM...

AT 240 PM MDT...STRONG THUNDERSTORMS WERE LOCATED OVER THE WEST NEBRASKA
PANHANDLE...10 MILES NORTH OF SCOTTSBLUFF...AND 50 MILES WEST OF CHADRON
NEBRASKA...NEAR HARRISON.  THE STORMS WERE MOVING EAST AT 25 MILES AN
HOUR.

HEAVY RAIN...STRONG WIND...HAIL AND DANGEROUS CLOUD TO GROUND LIGHTNING
ARE POSSIBLE WITH THE PASSAGE OF THESE STORMS ACROSS NORTHERN SIOUX AND
NORTHERN SCOTTSBLUFF COUNTIES OF THE NEBRASKA PANHANDLE UNTIL 330 PM MDT.

OTHER STRONG THUNDERSTORMS WERE ALSO OVER SOUTHEAST WYOMING FROM 30 MILES
TO 70 MILES WEST OF SCOTTSBLUFF NEBRASKA...THESE STORMS WILL BE MOVING
INTO WESTERN SCOTTS BLUFF AND WESTERN BANNER COUNTIES OF THE PANHANDLE
AROUND 300 PM MDT.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM MDT...
ACROSS THE $NEBRASKA PANHANDLE.  PEOPLE IN THE PANHANDLE SHOULD REMAIN
ALERT FOR THREATENING WEATHER AND BE PREPARED TO MOVE TO A PLACE OF
SAFETY.
WIRTH
Special weather statement, Aug 11, 3:38 PM MDT, 4 hours 27 minutes before
NEZ001-005-011-122230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
338 PM MDT FRI AUG 10 1990

...SEVERE THUNDERSTORM WATCH FOR THE NEBRASKA PANHANDLE UNTIL 800 PM...

AT 330 PM MDT...VERY STRONG THUNDERSTORMS CONTINUED OVER THE WEST AND
NORTH NEBRASKA PANHANDLE...20 MILES SOUTHWEST OF SCOTTSBLUFF NEBRASKA
ALONG THE BANNER/SCOTTS BLUFF COUNTY LINE...AND 35 MILES SOUTHWEST OF
CHADRON OR 15 MILES SOUTHEAST OF HARRISON.  THE STORMS WERE MOVING
EAST AT 25 MILES AN HOUR.

HEAVY RAIN...STRONG WIND...HAIL AND DANGEROUS CLOUD TO GROUND LIGHTNING
ARE POSSIBLE WITH THE PASSAGE OF THESE STORMS ACROSS EASTERN SIOUX AND
SOUTHWEST DAWES...AND SOUTHERN SCOTTS BLUFF AND NORTHERN BANNER COUNTIES
OF THE NEBRASKA PANHANDLE UNTIL 430 PM MDT.  THE STORM SOUTHWEST OF
SCOTTSBLUFF NEBRASKA SHOULD REACH THE COMMUNITY OF HARRISBURG AROUND
415 PM MDT.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM MDT
ACROSS THE NEBRASKA PANgHANDLE.  PEOPLE IN THE PANHANDLE SHOULD REMAIN
ALERT FOR THREATENING WEATHER AND BE PREPARED TO MOVE TO A PLACE OF
SAFETY.
WIRTH
Special weather statement, Aug 11, 3:49 PM MDT, 4 hours 16 minutes before
WYZ012-017-112230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
345 PM MDT SAT AUG 11 1990

...SEVERE THUNDERSTORM WATCH SOUTHEAST BORDER OF WYOMING UNTIL 8 PM...

THUNDERSTORMS CONTINUED OVER THE EXTERME SOUTHEAST CORNER OF WYOMING.
THE STRONGEST STORMS WERE NEAR US HIGHWAY 85 IN NORTHERN LARAMIE COUNTY.
HAIL...GUSTY WINDS AND HEAVY RAIN WERE LIKELY WITH THESE STORMS.

THUNDERSTORMS WILL CONTINUE THIS AFTERNOON AND EVENING OVER SOUTHEAST
WYOMING.  A FEW STORMS MAY BECOME SEVERE...SO THE SEVERE THUNDERSTORM
WATCH REMAINS IN EFFECT FOR THE SOUTHEAST BORDER UNTIL 8 PM.

PEOPLE SHOULD LISTEN TO LOCAL BROADCASTS AND STAY INDOORS IF THUNDER-
STORMS APPROACH.

SCOTT
Special weather statement, Aug 11, 4:33 PM MDT, 3 hours 32 minutes before
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Special weather statement, Aug 11, 4:58 PM MDT, 3 hours 7 minutes before
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Special weather statement, Aug 11, 5:30 PM MDT, 2 hours 35 minutes before
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Nearby

Severe Thunderstorm Warnings in Nebraska, 1990Every severe thunderstorm warning in 1990

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.