Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 14, NWS North Platte, NE

May 24, 1990Brown County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 24, 1990, 12:12 AM CDT for Brown County, Nebraska. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
May 24, 1990, 12:12 AM CDT (05:12 UTC)
Expired
May 24, 1990, 1:00 AM CDT
In force
48 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Brown 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 00:00Z, 5.2 hours before the alert went out and 155 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 00:00Z on 1990-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1252 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 00:00Z on 1990-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.19395878Sfc1 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
1252 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
1495 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOFK 240512
SVROFK
NEC017-240600-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE NORFOLK NE
1212 AM CDT THU MAY 24 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 100 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE NORTH CENTRAL PART OF NEBRASKA
      BROWN

AT 1210 AM CDT NORFOLK RADAR INDICATED A SEVERE THUNDERSTORM
15 MILES SOUTHWEST OF AINSWORTH.  MOVEMENT WAS SOUTHEAST AT
25 MPH.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN THAT CAN QUICKLY FLOOD A LOW LYING
AREA.  SEVERE THUNDERSTORMS CAN ALSO PRODUCE A TORNADO WITH LITTLE
OR NO WARNING.

PEOPLE IN THE PATH OF THIS STORM SHOULD MOVE INSIDE A STRONG
BUILDING.  FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS.  HEAVY RAINS QUICKLY FLOOD
ROADWAYS...DO NOT DRIVE INTO WATER COVERED ROADWAYS.

 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PARTS OF
 NORTHCENTRAL NEBRASKA UNTIL 1 AM CDT.

 MILLER

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, May 23, 8:59 PM CDT, 3 hours 13 minutes before
NEZ06-012-016-017-240350-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
900 PM CDT WED MAY 23 1990

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MOST OF SOUTHWEST NEBRASKA
UNTIL 1AM CST...

NO THUNDERSTORMS HAVE OCCURRED OVER SOUTHWEST NEBRASKA YET THIS EVENING.

AS OF 9 PM CDT VERY STRONG THUNDERSTORMS WERE MOVING TOWARD SOUTHWEST
NEBRASKA FROM THE PANHANDLE OF NEBRASKA AND FROM NORTHEAST COLORADO.

AS THE EVENING CONTINUES...BE AWARE OF THE SEVERE WEATHER POTENTIAL
AND TAKE THE NECESSARY PRECAUTIONS AND PLAN FOR A PATH TO A SAFE SHELTER
IF THREATENING WEATHER APPROACHES.

RN
Special weather statement, May 23, 10:35 PM CDT, 1 hour 37 minutes before
NEZ06-012-016-017-240550-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1030 PM CDT WED MAY 23 1990

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MOST OF SOUTHWEST NEBRASKA
UNTIL 1AM CST...

NO SEVERE THUNDERSTORMS HAVE OCCURRED OVER SOUTHWEST NEBRASKA
YET THIS EVENING

AS OF 1030 PM CDT A 5 MILE WIDE AREA OF OF THUNDERSHOWERS WERE
MOVING ACROSS SOUTHERN DUNDY COUNTY NEAR BENKELMAN NEBRASKA...ABOUT
65 MILES SOUTH SOUTHWEST OFt NORTH PLATTE NEBRASKA.

A 5 MILE WIDE AREA OF THUNDERSHOWERS WERE NOTED IN NORTHWEST KEITH
COUNTY NEBRASKA NEAR OGALLALA...ABOUT 45 MILES WEST OF NORTH PLATTE.

THE AREAS WERE MOVING SOUTHEASTERLY ABOUT 15 MPH.

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 4:25 AM CDTFlash Flood WarningLBFKnox2 hr
May 24, 5:27 AM CDTFlash Flood WarningLBFCedar3 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 1990Every severe thunderstorm warning in 1990

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.