Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 66, NWS North Platte, NE

July 1, 19945 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 1, 1994, 5:11 PM CDT for 5 counties in Nebraska. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Jul 1, 1994, 5:11 PM CDT (22:11 UTC)
Expired
Jul 1, 1994, 6:00 PM CDT
In force
49 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Antelope County, NE, Garfield County, NE, Holt County, NE, Knox County, NE, Wheeler County, NE

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.2 hours before the alert went out and 200 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 012212 RRA
SVROFK
NEC071-183-089-003-107-012300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
511 PM CDT FRI JUL 1 1994
 
THE NATIONAL WEATHER SERVICE IN NORFOLK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL NEBRASKA
 
   ...GARFIELD COUNTY...WHEELER COUNTY
 
IN NORTH CENTRAL NEBRASKA
 
   ...HOLT COUNTY
 
IN NORTHEAST NEBRASKA
 
   ...ANTELOPE COUNTY...KNOX COUNTY
 
AT 510 PM CDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS THAT
EXTENDED FROM 40 MILES NORTHEAST OF O NEILL...NEAR VERDEL...TO JUST WEST
OF O NEILL TO 60 MILES SOUTHWEST OF O NEILL...NEAR TAYLOR. THIS LINE OF
STORMS WAS MOVING RAPIDLY SOUTHEAST AT 40 MPH AND WILL PRODUCE DAMAGING
WINDS AS WELL AS HAIL AND BRIEF HEAVY RAIN.
 
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.
 
BOWMAN

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, 5:37 PM CDTSevere Thunderstorm WarningLBFCuster68 min
Jul 1, 6:30 PM CDTSevere Thunderstorm WarningLBFMadison, Pierce, Stanton, Wayne60 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.