Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 49, NWS Cheyenne, WY

June 30, 1986Dawes County, Sioux County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 30, 1986, 7:03 PM MDT for Dawes County, Sioux County, Nebraska. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Jun 30, 1986, 7:03 PM MDT (01:03 UTC)
Expired
Jun 30, 1986, 8:00 PM MDT
In force
57 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

Counties Dawes County, NE, Sioux 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 00:00Z, 1.1 hours before the alert went out and 169 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 1986-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 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 1986-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939587897Sfc1 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
31 J/kg
Mixed-layer CIN
-254 J/kg
Mixed-layer LCL
1154 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

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 30, 3:02 PM MDT, 4 hours 1 minute before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
300 PM MDT MON JUN 30 1986

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF THE NEBRASKA
PANHANDLE UNTIL 900PM MDT TONIGHT...

AT 255PM MDT..THUNDERSTORMS HAVE DEVELOPED OVER SOUTHEAST WYOMING
NEAR CHEYENNE THAT WERE MOVING TO THE EAST AT 20 MPH. THESE STORMS
WILL BE REACHING INTO THE SOUTHWEST NEBRASKA PANHANDLE BY 4PM MDT
AND MAY BE ACCOMPANIED BY BRIEF HEAVY RFAIN..GUSTY WIND AND SMALL
HAIL OVER KIMBALL AND BANNER COUNTIES OF THE SOUTHWEST PANHANDLE.
KOSEL
Special weather statement, Jun 30, 3:27 PM MDT, 3 hours 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
325 PM MDT MON JUN 30 1986

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM FOR EASTERN
WYOMING...

BETWEEN 2 TO 230 PM THIS AFTERNOON 1/2 INCH SIZE HAIL AND HEAVY RAINS
WERE REPORTED OVER THE EXTREME NORTHEAST CORNER OF WYOMING BETWEEN
SUNDANCE TO THE SOUTH DAKOTA BORDER.

DOWN IN THE SOUTHEAST CORNER OF THE STATE A THUNDERSTORM MOVED
THROUGH CHEYENNE AROUND 230 PM WITH BRIEF HEAVY RAINS DEPOSITING TWO
TENTHS OF AN INCH OF RAIN AT THE AIRPORT AND A PEAK WIND GUST TO
46 MILES AN HOUR.  THE THUNDERSTORM CONTINUED EAST PASSING HILLSDALE
WITH STRONG WINDS AT 255 PM.

NO SEVERE WEATHER WAS REPORTED WITH THESE STORMS ALTHOUGH THE WERE
CERTAINLY STRONG ONES.  THE THUNDERSTORM IN THE SOUTHEAST CORNER
WILL MOVE INTO THE PINE BLUFFS TO ALBIN AREA BETWEEN 330 TO 4 PM
THIS AFTERNOON.

REMEMBER THAT A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT OVER THE
EASTERN QUARTER OF THE STATE UNTIL 9 PM THIS MONDAY EVENING.  PEOPLE
IN THE EASTERN END OF THE STATE SHOULD THINK ABOUT SAFETY PROCEDURES
FOR SEVERE THUNDERSTORMS.  SEEK SHELTER IF THREATENING WEATHER
APPROACHES AND NOTIFY YOUR LOCAL LAW ENFORCEMENT AGENCY WITH "YOUR
SEVERE WEATHER REPORT WHEN SAFE.
LAUZE
Special weather statement, Jun 30, 4:27 PM MDT, 2 hours 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
425 PM MDT MON JUN 30 1986

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF THE NEBRASKA
PANHANDLE UNTIL 900PM MDT TONIGHT...

AT 420PM MDT..A STRONG THUNDERSTORM WAS MOVING OUT OF CENTRAL WYOMING
INTO THE EXTREME NORTHWEST CORNER OF THE NEBRASKA PANHANDLE. THIS
THUNDERSTORM WAS MOVING TO THE EAST AT 25 MPH AND WILL CROSS NORTHERN
SIOUX COUNTY..ACCOMPANIED BY BRIEF HEAVY RAIN..STROMG GUSTY WIND AND
HAIL UNTIL 530PM MDT.
KOSEL
Special weather statement, Jun 30, 4:50 PM MDT, 2 hours 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
450 PM MDT MON JUN 30 1986

...A SEVERE THUNDERSTORM WATCH CONTINUES FOR EASTERN WYOMING TIL
   9 PM.

A SEVERE THUNDERSTORM WATCH CONTINUES FOR EXTREME EASTERN WYOMING
TIL 9 PM THIS MONDAY EVENING. AT 430 PM SATELLITE PICTURES AND
RADAR SHOWED WIDELY STRONG THUNDERSTORMS ALONG THE WYOMING AND
SOUTH DAKOTA BORDER OVER THE BLACK HILLS AREA.

OTHER ISOLATED THUNDERSHOWERS WERE LOCATED IN EXTREME
SOUTHEAST WYOMING JUST SOUTH OF PINE BLUFFS WYOMING OR 40 MILES EAST
OF CHEYENNE. THESE STORMS WERE MOVING EAST AT 25 MILES AN HOUR.

NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS. BUT RESIDENTS
IN EXTREME EASTERN WYOMIgNG SHOULD BE PREPARED FOR RAPIDLY DEVELOPING
THUNDERSTORMS IN AND NEAR THE WATCH AREA THIS EVENING.
RIZZO
Special weather statement, Jun 30, 5:56 PM MDT, 1 hour 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
558 PM MDT MON JUN 30 1986

...SEVERE THUNDERSTORM WATCH IS CANCELLED FOR PARTS OF WYOMING...

THE SEVERE THUNDERSTORM WATCH IS CANCELLED FOR CAMPBELL..CROOK..
CONVERSE...PLATTE...AND LARAMIE COUNTIES IN EASTERN WYOMING.

THE SEVERE THUNDERSTORM WATCH WILL CONTINUE UNTIL 8 PM MDT FOR
WESTON...NIOBRARA...AND GOSHEN COUNTIES IN EXTREME EASTERN WYOMING.

THIS INCLUDES THE CITIES OF LUSK..NEWCASTLE..AND TORRINGTON.

RESIDENTS IN AND NEAR THE WATCH AREA SHOULD BE PREPARED FOR RAPIDLY
DEVELOPING THUNDERSTORMS.

RIZZO
Special weather statement, Jun 30, 6:43 PM MDT, 20 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE CHEYENNE WY
645 PM MDT MON JUN 30 1986

SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 8 PM FOR EXTREME EAST
CENTRAL WYOMING

AT 630 PM MDT A VERY HEAVY THUNDERSTORM WAS LOCATED JUST NORTH OF
LUSK WYOMING IN NIOBRARA COUNTY.  ANOTHER STRONG STORM HAD JUST MOVED
INTO THE NORTHWEST CORNOR OF NEBRASKA.  THESE STORMS WERE MOVING
EAST SOUTHEAST AT 25MPH.

ISOLATED THUNDERSHOWERS WERE ALSO IN NORTHEAST COLORADO MOVING
EAST NORTHEAST AT 25 MPH.

SCOTT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 6:04 PM MDTSevere Thunderstorm WarningCYSSheridan56 min
Jun 30, 6:04 PM MDTSevere Thunderstorm WarningCYSSioux56 min
Jun 30, 6:12 PM MDTTornado WarningCYSSheridan28 min
Jun 30, 6:37 PM MDTTornado WarningCYSSheridan13 min
Jun 30, 7:11 PM MDTSevere Thunderstorm WarningCYSDawes, Sioux49 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; the sounding from the Mesonet's radiosonde archive.