Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 69, NWS Hastings, NE

August 6, 1986Merrick County, Polk County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Aug 6, 1986, 9:49 PM CDT for Merrick County, Polk County, Nebraska. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Aug 6, 1986, 9:49 PM CDT (02:49 UTC)
Expired
Aug 6, 1986, 10:44 PM CDT
In force
55 min
Issued by
NWS Hastings, NE
Area
Whole counties

Counties Merrick County, NE, Polk 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

Omaha, NE (KOAX), launched 00:00Z, 2.8 hours before the alert went out and 121 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, Omaha, NE at 00:00Z on 1986-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Omaha, NE at 00:00Z on 1986-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3611 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
125 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 6, 4:44 PM CDT, 5 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND ISLAND NE
430 PM CDT WED AUG 6 1986

...TORNADO WATCH FOR A LARGE PART OF CENTRAL NEBRASKA UNTIL 10 PM CDT..

SHOWERS AND THUNDERSTORMS A COUPLE INTENSE HAS DEVELOPED IN PARTS OF
NORTHEAST AND SOUTHWEST NEBRASKA ALSO NORTHWEST KANSAS.

THE INTENSE THUNDERSTORMS WERE LOCATED NEAR MC COOK NEB.  MOVING TO THE
EAST AT 25 TO 30 MPH.

SCATTERED SHOWERS AND THUNDERSHOWERS WERE LOCATED NORTH OF A LINE THAT
RAN FROM AINSWORTH TO NORFOLK NEB.  MOVING TO THE EAST SOUTHEAST AT
25 TO 30 MPH.
IN NORTHWEST KANSAS AND SOUTHWEST NEBRASKA A 50 MILE WIDE BAND OF MORE
NUMEROUS SHOWERS AND THUNDERSTORMS EXTENDED FROM 30 MILES WEST OF
GOODLAND KS. TO 20 MILES NORTHEAST OF MC COOK NEB.  MOVING TO THE EAST
AT 25 MPH.
MLT
Special weather statement, Aug 6, 5:49 PM CDT, 4 hours before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND ISLAND NE
530 PM CDT WED AUG 6 1986

...TORNADO WATCH FOR A LARGE PART OF CENTRAL NEBRASKA UNTIL 10 PM CDT..

INTENSE THUNDERSTORMS CONTINUE TO DEVELOPE IN PARTS OF NORTH CENTRAL
AND SOUTHWEST NEBRASKA ALSO NORTHWEST KANSAS.

SCATTERED SHOWERS AND THUNDERSHOWERS IN NORTHEAST NEBRASKA.

THE INTENSE THUNDERSTORMS WERE LOCATED JUST NORTHWEST OF VALENTINE NEB.
MOVING TO THE SOUTHEAST AT 30 MPH.  THIS STORM COULD PRODUCE HIGH WINDS
AND HAIL.  OTHER STORMS WERE LOCATED FROM 10 MILES SOUTHEAST OF MC COOK
TO 40 MILES SOUTH SOUTHWEST OF MC COOK NEB.  MOVING TO THE SOUTHEAST AT
30 MPH.

SCATTERED SHOWERS AND THUNDERSHOWERS CONTIiNUED FROM JUST SOUTHWEST OF
ONEIL TO JUST EAST OF NORFOLK TO SIOUX CITY IA. THEN TO JUST WEST OF
YANKTON S DAK.
Special weather statement, Aug 6, 6:44 PM CDT, 3 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND ISLAND NE
630 PM CDT WED AUG 6 1986

...TORNADO WATCH FOR A LARGE PART OF CENTRAL NEBRASKA UNTIL 10 PM CDT..

A EXTREMELY INTENSE THUNDERSTORM CONTINUES IN NORTH CENTRAL NEBRASKA
SCATTERED SHOWERS AND THUNDERSTORMS A COUPLE INTENSE REMAIN IN PARTS
OF NORTHEAST AND SOUTHWEST NEBRASKA EXTENDING INTO NORTHWEST KANSAS.

THE EXTREMELY INTENSE WAS LOCATED JUST SOUTHEAST OF VALENTINE NEB.
MOVING TO THE SOUTHEAST AT 30 MPH.  THIS STORM HAS PRODUCED HAIL UPTO
GOLFBALL SIZE NEAR VALENTINE AT 5 50 PM CDT.  THE INTENSE THUNDERSTORMS
WERE LOCATED IN NORTHWEST KANSAS BETWEEN MC COOK NEB. AND HILL CITY KS.
ALSO 20 MILES NORTH NORTHEAST OF HILL CITY AND 50 MILES WEST NORTHWEST
OF HILL CITY KS.  MOVING TO THE SOUTHEAST AT 25 TO 30 MPH.

THE SHOWERS IN NORTHEAST NEBRASKA EXTENDED FROM 30 MILES WEST TO 50
MILES EAST SOUTHEAST OF NORFOLK NEB.  MOVING TO THE EAST SOUTHEAST AT
25 MPH.
Special weather statement, Aug 6, 7:52 PM CDT, 1 hour 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND ISLAND NE
730 PM CDT WED AUG 6 1986

...TORNADO WATCH FOR A LARGE PART OF CENTRAL NEBRASKA UNTIL 10 PM CDT..

A SUPER THUNDERSTORM CONTINUES IN NORTH CENTRAL NEBRASKA IN SOUTHEAST
CHERRY AND SOUTHWEEST CORNERN OF BROWN COUNTIES.  THIS STORM COULD
PRODUCE A TORNADO AND PERSONS IN THE PATH OF THIS STORM SHOULD TAKE
SHELTER.  THIS STORMS WAS MOVING TO THE SOUTH AT 30 TO 35 MPH AND WILL
BE ENTERING WESTERN BLAINE AND EASTERN THOMAS COUNTIES BY 8 PM CDT.

NUMEROUS SHOWERS AND THUNDERSTORMS ALSO CONTINUE OVER PARTS OF NORTH
CENTRAL AND NORTHEAST NEBRASKA ALSO NORTHWEST KANSAS.

IN NEBRASKA THESE SHOWERS AND STORMS WERE LOCATED NORTH OF A LINE THAT
RAN FROM OMAHA TO MULLEN NEB.  MOVING THE THE EAST SOUTHEAST AT 25 MPH.
IN KANSAS SHOWERS AND A FEW INTENSE THUNDERSTORMS IN AN AREA 50 MILES
ACROSS WITH THE CENTER LOCATED 20 MILES NORTHWEST OF HILL CITY.  THE
INTENSE THUNDERSTORMS WERE LOCATED BETWEEN MC COOK NEB. AND HILL CITY
KS. ALSO 40 MILES WEST NORTHWEST OF HILL CITY KS.  MOVING TO THE
SOUTHEAST AT 20 MPH.  THESE STORMS COULD PRODUCE STRONG WINDS AND
SOME HAIL.
MLT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 9:49 PM CDTSevere Thunderstorm WarningGIDYork55 min
Aug 6, 10:08 PM CDTTornado WarningGIDDawson112 min
Aug 7, 12:30 AM CDTSevere Thunderstorm WarningGIDAdams, Clay60 min
Aug 7, 1:03 AM CDTSevere Thunderstorm WarningGIDNuckolls, Webster57 min
Aug 7, 1:37 AM CDTSevere Thunderstorm WarningGIDAdams, Clay53 min
Aug 7, 2:31 AM CDTSevere Thunderstorm WarningGIDAdams, Clay, Nuckolls, Webster59 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.