Alert archive / Nebraska / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 63, NWS North Platte, NE

July 24, 1987Cedar County, Knox County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 24, 1987, 3:18 PM CDT for Cedar County, Knox County, Nebraska. It was in force for 57 min.

The area

The counties it named.

The facts

Issued: Jul 24, 1987, 3:18 PM CDT (20:18 UTC)
Expired: Jul 24, 1987, 4:15 PM CDT
In force: 57 min
Issued by: NWS North Platte, NE
Area: Whole counties

Counties Cedar County, NE, Knox 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 12:00Z, 8.3 hours before the alert went out and 175 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3637 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 109 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 KOFK 242018
SVROFK
NEC107-027-242115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
318 PM CDT FRI JUL 24 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 415 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

NORTHEAST NEBRASKA...SOUTHEAST KNOX AND SOUTHERN CEDAR

AT 315 PM CDT A SEVERE THUNDERSTORM WAS INDICATED BY RADAR 15 MILES
WEST OF WAUSA NEBRASKA IN SOUTHEASTERN KNOX COUNTY MOVING TO THE
EAST AT 30 MPH.

THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO WARNING...SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO A
PLACE OF SAFETY.

 A SEVERE THUNDERSTORM WATCH CONOTINUES IN EFFECT UNTIL 800 PM CDT
 THIS EVENING FOR MOST OF NORTH CENTRAL AND NORTHEAST NEBRASKA.

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

Local storm report, Jul 24, 1:15 PM CDT, 2 hours 3 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE VALENTINE NE
110 PM CDT FRI JUL 23 1987

SELS MKC OMA A VTN

TIME
1225 PM   CDT HAIL BASEBALL SIZED REPORTED 10 MILES NORTH OR NEZEL.

1245 PM   CDT FUNNEL CLOUD 2 MILES NORTH OF KILGORE REPORTED TO
              SHERIFF'S DEPT BY ROAD WORKER.

RODDA

Special weather statement, Jul 24, 2:25 PM CDT, 53 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
122 PM CDT FRI JUL 24 1987

...A SEVERE THUNDERSTORM WATCH UNTIL 8 PM CDT FOR LOGAN..THOMAS..AND
CUSTER IN NEBRASKA...

AT 115 PM CDT NO SEVERE WEATHER WAS LOCATED OVER WEST CENTRAL AND
CENTRAL NEBRASKA IN THE COUNTIES OF LOGAN..THOMAS..AND CUSTER.

THE STRONGEST STORM WAS 15 MILES NORTHEAST OF VALENTINE NEBRASKA IN
CHERRY COUNTY ..MOVING EAST 20 MPH.

PERSONS IN THESE WATCH AREA SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS

HORN

Special weather statement, Jul 24, 3:05 PM CDT, 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
204 PM CDT FRI JUL 24 1987

...A SEVERE THUNDERSTORM WATCH UNTIL 8 PM CDT FOR LOGAN..THOMAS..AND
CUSTER IN NEBRASKA...

AT 200 PM CDT NO SEVERE WEATHER WAS LOCATED OVER WEST CENTRAL AND
CENTRAL NEBRASKA IN THE COUNTIES OF LOGAN..THOMAS..AND CUSTER.

THE STRONGEST STORM WAS ACROSS THE BORDER IN SOUTH DAKOTA..OUT OF
THE RANGE OF WSO NORTH PLATTES RADAR.

PERSONS IN THESE WATCH AREGA SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS

HORN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 8:13 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	62 min
Jul 24, 3:40 PM CDT	Severe Thunderstorm Warning	LBF	Pierce	35 min
Jul 24, 4:18 PM CDT	Severe Thunderstorm Warning	LBF	Pierce, Wayne	57 min
Jul 24, 5:48 PM CDT	Severe Thunderstorm Warning	LBF	Colfax, Cuming, Stanton	57 min
Jul 24, 5:48 PM CDT	Severe Thunderstorm Warning	LBF	Boone, Madison, Platte	57 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1987 Every severe thunderstorm warning in 1987

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.