Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 43, NWS Cheyenne, WY

June 30, 1986Dawes County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 30, 1986, 4:31 AM MDT for Dawes County, Nebraska. It was in force for 59 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 30, 1986, 4:31 AM MDT (10:31 UTC)
Expired
Jun 30, 1986, 5:30 AM MDT
In force
59 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.

What was reported inside it

TimeReportWhereRemark
Jun 30, 5:05 AM MDTHail 3Dawes, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 10.5 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-pSkew-T log-p diagram, Rapid City, SD at 00:00Z on 1986-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2168 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 00:00Z on 1986-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -66 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
2168 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
1204 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-66 m²/s²
0-3 km storm-relative helicity
-30 m²/s²
Significant tornado parameter
-0.7
Supercell composite
-8.2

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, Jun 29, 10:42 PM MDT, 5 hours 49 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
1040PM MDT SUN JUN 29 1986

...SEVERE THUNDERSTORM WARNING CANCELLED FOR SIOUX AND DAWES COUNTIES...

THE SEVERE THUNDERSTORM WARNING ISSUED AT 1024 PM MDT FOR NORTHERN SIOUX
AND NORTHWEST DAWES COUNTIES OF THE NEBRASKA PANHANDLE HAS BEEN
CANCELLED.

THE THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED GREATLY
AND IS NO LONGER A THREAT TO THE AREA.

AT 1040 PM MDT...RADAR INDICATES A THUNDERSTORM 25 MILES WEST OF
CHADRON NEBRASKA IN NORTHEASTERN SIOUX COUNTY MOVING NORTHEAST AT
20 MILES AN HOUR. LOCALLY HEAVY RAIN AND SMALL HAIL ARE STILL POSSIBLE
WITH THIS STORM AS IT MOVES TOWARD THE SOUTH DAKOTA LINE.
PFEIFFER
Local storm report, Jun 29, 11:30 PM MDT, 5 hours 1 minute before
STORM REPORT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
1130 PM MDT SUN JUN 29 1986

SELS MKC OMA A BFF

TIME          EVENT
2 45 PM MDT   BRIEF HEAVY RAIN BUT NO WIND OR HAIL AT KIMBALL NEBRASKA
              FROM CIVIL DEFENSE DIR.

5 40 PM MDT   WIND GUSTS TO 53 MPH AT WSMO ALLIANCE. NO THUNDER.

9 10 PM MDT   TORNADO REPORTED BY PUBLIC 20 MILES NORTH OF SCOTTSBLUFF
              NEBRASKA IN SIOUX COUNTY.

9 20 PM MDT   GOLFBALL SIZE HAIL 7 MILES SOUTH OF HARRISON NEBRASKA IN
              SIOUX COUNTY. KNOCKED OUT WINDSHIELD OF SPOTTER'S CAR.

11 05 PM MDT  HOUSE STRUCK BY LIGHTNING IN CHADRON NEBRASKA CAUSED A
              COMPLETE POWER LOSS...IN DAWES COUNTY.
<
KOSEL/PFEIFFER
Local storm report, Jun 29, 11:35 PM MDT, 4 hours 56 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
1130 PM MDT SUN JUN 29 1986

SELS MKC OMA A BFF

TIME          EVENT
2 45 PM MDT   BRIEF HEAVY RAIN BUT NO WIND OR HAIL AT KIMBALL NEBRASKA
              FROM CIVIL DEFENSE DIR.

5 40 PM MDT   WIND GUSTS TO 53 MPH AT WSMO ALLIANCE. NO THUNDER.

9 10 PM MDT   TORNADO REPORTED BY PUBLIC 20 MILES NORTH OF SCOTTSBLUFF
              NEBRASKA IN SIOUX COUNTY.

9 20 PM MDT   GOLFBALL SIZE HAIL 7 MILES SOUTH OF HARRISON NEBRASKA IN
              SIOUX COUNTY. KNOCKED OUT WINDSHIELD OF SPOTTER'S CAR.

11 05 PM MDT  HOUSE STRUCK BY LIGHTNING IN CHADRON NEBRASKA CAUSED A
              COMPLETE POWER LOSS...IN DAWES COUNTY.
<
KOSEL/PFEIFFER
Local storm report, Jun 30, 2:46 AM MDT, 1 hour 45 minutes before
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Special weather statement, Jun 30, 3:55 AM MDT, 36 minutes before
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    <section class="card" role="status" aria-live="polite">
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 8:21 PM MDTSevere Thunderstorm WarningCYSSioux54 min
Jun 29, 8:34 PM MDTTornado WarningCYSSioux26 min
Jun 29, 8:58 PM MDTTornado WarningCYSSioux32 min
Jun 29, 9:26 PM MDTSevere Thunderstorm WarningCYSBox Butte, Dawes, Sioux54 min
Jun 29, 10:24 PM MDTSevere Thunderstorm WarningCYSDawes, Sioux51 min
Jun 30, 5:28 AM MDTSevere Thunderstorm WarningCYSSheridan57 min
Jun 30, 4:44 PM MDTSevere Thunderstorm WarningCYSSioux51 min
Jun 30, 5:10 PM MDTSevere Thunderstorm WarningCYSDawes, Sheridan55 min
Jun 29, 7:15 PM MDTSevere Thunderstorm WarningCYSGoshen30 min
Jun 29, 8:06 PM MDTSevere Thunderstorm WarningCYSGoshen24 min
Jun 30, 12:01 AM MDTSevere Thunderstorm WarningCYSWeston44 min
Jun 30, 12:50 AM MDTSevere Thunderstorm WarningCYSWeston40 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1986Every severe thunderstorm warning in 1986

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.