Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 103, NWS Cheyenne, WY

August 22, 1990Dawes County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 22, 1990, 1:11 PM MDT for Dawes County, Nebraska. It was in force for 64 min.

The area

The counties it named.

The facts

Issued: Aug 22, 1990, 1:11 PM MDT (19:11 UTC)
Expired: Aug 22, 1990, 2:15 PM MDT
In force: 64 min
Issued by: NWS Cheyenne, WY
Area: Whole counties

County Dawes 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

Rapid City, SD (KRAP), launched 12:00Z, 7.2 hours before the alert went out and 152 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1006 J/kg
Mixed-layer CIN: -262 J/kg
Mixed-layer LCL: 1938 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -43 m²/s²
0-3 km storm-relative helicity: -14 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 KBFF 221911
SVRBFF
NEC045-222015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
111 PM MDT WED AUG 22 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 215 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE PANHANDLE OF NEBRASKA
      EASTERN DAWES

AT 110 PM MDT...A SEVERE THUNDERSTORM WAS INDICATED BY RADAR 15
MILES SOUTHEAST OF CHADRON NEBRASKA.  THE STORM WAS MOVING NORTHEAST
AT 15 MPH AND WILL PASS THROUGH THE EASTERN HALF OF DAWES COUNTY.

PREPARE FOR LARGE HAIL...DAMAGING WIND...HEAVY RAIN AND DANGEROUS
LIGHTNING BY TAKING COVER.  STAY AWAY FROM AREAS WHERE LOOSE ITEMS
CAN BECOME DANGEROUS FLYING DEBRIS.

IF THREATENING WEATHER APPROACHES...TAKE SHELTER INSIDE A REINFORCED
BUILDING.  STAY AWAY FROM WINDOWS.  A BASEMENT...INTERIOR HALLWAY...
OR A ROOM ON THE LOWEST FLOOR IS THE SAFEST PLACE IN MOST BUILDINGS.
MOTORISTS SHOULD AVOID LOW WATER CROSSINGS.

PEEK

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 22, 12:45 PM MDT, 26 minutes before

NEZ001-221930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
145 PM MDT WED AUG 22 1990

...A STRONG THUNDERSTORM IN THE NEBRASKA PANHANDLE...

AT 143 PM MDT...RADAR INDICATED A STRONG THUNDERSTORM THAT QUICKLY
DEVELOPED 15 MILES SOUTH OF CHADRON NEBRASKA.  THE STORM WAS MOVING
NORTH AT 15 MPH.

HEAVY RAIN...HAIL...AND GUSTY WIND ARE LIKELY WITH THIS STORM IN
DAWES COUNTY UNTIL 130 PM MDT.
PEEK

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 21, 6:54 PM MDT	Severe Thunderstorm Warning	CYS	Garden	44 min
Aug 22, 1:31 PM MDT	Tornado Warning	CYS	Box Butte	29 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1990 Every 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.