Alert archive / Nebraska / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 49, NWS North Platte, NE

July 17, 1989Lincoln County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 17, 1989, 5:26 PM CDT for Lincoln County, Nebraska. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Jul 17, 1989, 5:26 PM CDT (22:26 UTC)
Expired
Jul 17, 1989, 6:30 PM CDT
In force
64 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Lincoln 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.4 hours before the alert went out and 15 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, N. Platte/Lee Bi, NE at 12:00Z on 1989-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 712 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, N. Platte/Lee Bi, NE at 12:00Z on 1989-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
712 J/kg
Mixed-layer CIN
-326 J/kg
Mixed-layer LCL
716 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
222 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KLBF 172226
SVRLBF
NEC111-172330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE NORTH PLATTE NE
526 PM CDT MON JUL 17 1989

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 630 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTHWEST PART OF NEBRASKA
      THE CITY OF NORTH PLATTE...NORTHERN AND EASTERN LINCOLN

AT 515 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 12 MILES NORTH
OF NORTH PLATTE NEBRASKA MOVING SOUTH-SOUTHEAST AT 30 MPH.

IF YOU ARE IN THE AREA THREATENED BY THE STORM...GO TO A REINFORCED
SHELTER AND PREPARE FOR STRONG DAMAGING WIND...LARGE HAIL...VERY
HEAVY RAIN...AND DEADLY LIGHTNIN!G.

REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A
TORNADO WITH LITTLE OR NO ADVANCE WARNING SO BE ON THE LOOKOUT!!

 MEYER 2224Z

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 17, 4:12 PM CDT, 1 hour 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
410 PM CDT MON JUL 17 1989

INTENSE THUNDERSTORMS DEVELOPING ACROSS NORTH CENTRAL NEBRASKA AND
APPROACHING SOUTHWEST NEBRASKA THIS AFTERNOON.

AT 400 PM CDT AN INTENSE THUNDERSTORM WAS 10 MILES NORTHWEST OF TRYON
NEBRASKA OR 40 MILES NORTHWEST OF NORTH PLATTE NEBRASKA MOVING
SOUTHEAST AT 30 MILES AN HOUR.

A SECOND INTENSE THUNDERSTORM WAS 5 MILES SOUTH OF MULLEN NEBRASKA OR
45 MILES NORTHWEST OF NORTH PLATTE NEBRASKA ALSO MOVING SOUTHEAST AT
30 MILES AN HOUR.

THESE THUNDERSTORMS ARE PROBABLY PRODUCING SOME HAIL...HEAVY
RAIN...DANGEROUS LIGHTNING AND GUSTY WINDS.

SHORTLY BEFORE 400 PM CDT A FUNNEL CLOUD WAS REPORTED BY THE PUBLIC
10 MILES NORTH OF ARTHUR NEBRASKA.  A SPOTTER WAS SENT TO THE AREA
AND FOUND NO EVIDENCE OF AN TORNADIC ACTIVITY.

HOWEVER...IF YOU LIVE IN NORTH CENTRAL NEBRASKA NEAR ANY OF THE
INTENSE THUNDERSTORMS...STAY ALERT TO THE WEATHER AND BE PREPARED TO
MOVE TO A PLACE OF SHELTER IF THREATENING WEATHER APPROACHES.

MEYER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 5:22 PM CDTSevere Thunderstorm WarningLBFKeith68 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1989Every severe thunderstorm warning in 1989

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.