Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 69, NWS North Platte, NE

July 1, 1994Colfax County, Cuming County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 1, 1994, 7:26 PM CDT for Colfax County, Cuming County, Nebraska. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Jul 1, 1994, 7:26 PM CDT (00:26 UTC)
Expired
Jul 1, 1994, 8:10 PM CDT
In force
44 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Colfax County, NE, Cuming County, NE

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.4 hours before the alert went out and 67 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 1994-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2003 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 00:00Z on 1994-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 143 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
2003 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
976 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
423 m²/s²
Significant tornado parameter
3.3
Supercell composite
17.4

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KOFK 020028 RRA
SVROFK
NEC037-039-020130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
726 PM CDT FRI JUL 1 1994
 
THE NATIONAL WEATHER SERVICE IN NORFOLK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL NEBRASKA
 
   ...COLFAX COUNTY
 
IN NORTHEAST NEBRASKA
 
   ...CUMING COUNTY
 
AT 725 PM CDT...RADAR CONTINUED TO INDICATE A LINE OF THUNDERSTORMS THAT
EXTENDED FROM 20 MILES EAST OF NORFOLK TO 25 MILES SOUTHEAST OF
NORFOLK...OR FROM PILGER TO LEIGH. THESE STORMS HAVE HAD A HISTORY OF
PRODUCING WINDS TO 70 MPH. THE TOWNS OF WISNER...BEEMER...AND HOWELLS
ARE IN THE PATH OF THIS STORM.
 
 
PEOPLE IN THE PATH OF THIS STORM SHOULD TAKE SHELTER IMMEDIATELY.
PREPARE FOR DAMAGING WINDS...LARGE HAIL...DEADLY LIGHTNING AND VERY
HEAVY RAIN THAT CAN QUICKLY FLOOD A LOW LYING AREA.  REMEMBER...
SEVERE THUNDERSTORMS CAN PRODUCE A TORNADO WITH LITTLE OR NO WARNING.
 
 
 
CB

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, 1 hour 8 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

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.