Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 80, NWS North Platte, NE

July 19, 1986Cedar County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 19, 1986, 2:51 AM CDT for Cedar County, Nebraska. It was in force for 24 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
Jul 19, 1986, 2:51 AM CDT (07:51 UTC)
Expired
Jul 19, 1986, 3:15 AM CDT
In force
24 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Cedar 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
Jul 19, 3:00 AM CDTThunderstorm Wind 0Cedar, 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

Omaha, NE (KOAX), launched 00:00Z, 7.9 hours before the alert went out and 160 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 1986-07-19Temperature 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 1986-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.1939Sfc1 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
3622 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
131 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 190751
SVROFK
NEC027-190815-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
251 AM CDT SAT JUL 19 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 315 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

NORTHEAST NEBRASKA...CEDAR

AT 243 AM CDT A SEVERE THUNDERSTORM WAS 35 TO 50 MILES NORTH OF
NORFOLK OR 5 MILES WEST OF COLERIDGE AND HARTINGTON.

THE THUNDERSTORM WAS MOVING EAST AT 40 MPH.

 REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE DEADLY WINDS IN EXCESS
OF 75 MPH...LARGE HAIL...KILLER LIGHTNING...AND TORRENTIAL RAINS
THAT CAN QUICKLY FLOOD A LOW LYING AREA.

 NEWMAN

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, Jul 18, 8:54 PM CDT, 5 hours 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
852 PM CST FRI JUL 18 1986

...SEVERE THUNDERSTORM WATCH UNTIL 1100 PM CDT THIS FRIDAY EVENING
   FOR PORTIONS OF WEST CENTRAL NEBRASKA...

AT 850 PM CDT AN EXTREME THUNDERSTORM WAS 52 MILES WEST-NORTHWEST OF
NORTH PLATTE..NEAR THE TOWN OF ARTHUR IN ARTHUR COUNTY. A LINE OF
INTENSE THUNDERSTORMS..40 MILES WIDE..WERE 60 MILES NORTHWEST
EXTRENDING 100 MILES SOUTHWEST OF NORTH PLATTE NEBRASKA. THIS LINE WAS
MOVING EAST AT 20 MPH.

SMALL HAIL ALONG WITH BRIEF HEAVY RAIN MAY ACCOMPANY THESE THUNDERSTORMS
AS THEY BEGIN MOVING EAST ACROSS ARTHUR COUNTY.

HORN
Special weather statement, Jul 18, 9:35 PM CDT, 5 hours 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
934 PM CST FRI JUL 18 1986

THE SEVERE THUNDERSTORM WATCH WHICH HAD BEEN ISSUED EARLIER FOR CUSTER..
LOGAN AND THOMAS COUNTIES OF WEST CENTRAL NEBRASKA HAS NOW BEEN
CANCELLED.

MONSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 1:51 AM CDTSevere Thunderstorm WarningLBFCedar, Knox69 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.