Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 68, NWS North Platte, NE

July 1, 19944 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 1, 1994, 6:30 PM CDT for 4 counties in Nebraska. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jul 1, 1994, 6:30 PM CDT (23:30 UTC)
Expired
Jul 1, 1994, 7:30 PM CDT
In force
60 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Madison County, NE, Pierce County, NE, Stanton County, NE, Wayne County, NE

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 11.5 hours before the alert went out and 119 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 12:00Z on 1994-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1691 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, Omaha, NE at 12:00Z on 1994-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
1691 J/kg
Mixed-layer CIN
-200 J/kg
Mixed-layer LCL
1310 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KOFK 012331 RRA
SVROFK
NEC119-139-167-179-020030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
630 PM CDT FRI JUL 1 1994
 
THE NATIONAL WEATHER SERVICE IN NORFOLK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST NEBRASKA
 
   ...MADISON COUNTY...PIERCE COUNTY...STANTON COUNTY
   ...WAYNE COUNTY
 
AT 625 PM CDT RADAR CONTINUED TO INDICATE A FAST MOVING LINE OF SEVERE
THUNDERSTORMS FROM 15 MILES NORTHWEST OF NORFOLK...TO 10 MILES WEST OF
NORFOLK TO 20 MILES SOUTHWEST OF NORFOLK. THE LINE OF STORMS WAS MOVING
SOUTHEAST AT 40 MPH AND HAS A HISTORY OF PRODUCING WINDS OF 50 TO 70
MPH. PERSONS IN THE WARNED AREA SHOULD BE PREPARED TO TAKE SHELTER
IMMEDIATELY WHEN SEVERE WEATHER IS SIGHTED.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH...PREPARE FOR
DAMAGING WINDS...LARGE HAIL...AND DEADLY LIGHTNING.  PEOPLE
OUTSIDE SHOULD MOVE TO SHELTER...PREFERABLY INSIDE A STRONG
BUILDING.  ONCE INSIDE...STAY AWAY FROM WINDOWS UNTIL THE STORM
HAS PASSED.
 
BOWMAN

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 1, 6:18 PM CDT, 12 minutes before
NEZ005-020215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF NE
518 PM MDT (618 PM CDT) FRI JUL 1 1994

...TORNADO WATCH FOR NORTH CENTRAL NEBRASKA UNTIL 9 PM CDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 9 PM CDT FOR NORTH CENTRAL
NEBRASKA INCLUDING CHERRY COUNTY.  ALTHOUGH NO THUNDERSTORMS WERE NOTED
ON RADAR...RESIDENTS IN THE WATCH AREA SHOULD BE AWARE OF
THE POSSIBILTY OF THREATENING WEATHER IN THEIR AREA AND BE PREPARED TO
SEEK SHELTER THROUGH 9 PM CDT.

RENZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 9:55 PM CDTSevere Thunderstorm WarningLBFCedar, Knox55 min
Jul 1, 2:49 PM CDTSevere Thunderstorm WarningLBFMadison, Platte41 min
Jul 1, 3:29 PM CDTSevere Thunderstorm WarningLBFColfax, Madison, Platte, Stanton46 min
Jul 1, 3:29 PM CDTSevere Thunderstorm WarningLBFCuming46 min
Jul 1, 3:48 PM CDTSevere Thunderstorm WarningLBFCherry27 min
Jul 1, 4:38 PM CDTTornado WarningLBFHooker52 min
Jul 1, 4:43 PM CDTTornado WarningLBFThomas32 min
Jul 1, 4:52 PM CDTTornado WarningLBFLogan, McPherson53 min
Jul 1, 5:11 PM CDTSevere Thunderstorm WarningLBFAntelope, Garfield, Holt, Knox, Wheeler49 min
Jul 1, 5:37 PM CDTSevere Thunderstorm WarningLBFCuster68 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1994Every severe thunderstorm warning in 1994

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.