Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 83, NWS North Platte, NE

July 5, 1994Boone County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 5, 1994, 9:37 PM CDT for Boone County, Nebraska. It was in force for 68 min.

The area

The counties it named.

The facts

Issued
Jul 5, 1994, 9:37 PM CDT (02:37 UTC)
Expired
Jul 5, 1994, 10:45 PM CDT
In force
68 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Boone County, NE

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 2.6 hours before the alert went out and 148 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 1994-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3368 joules per kilogram.LCLEL10008507005003002001001 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 1994-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
3368 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1281 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.8
Supercell composite
8.0

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KOFK 060237 RRA
SVROFK
NEC011-060345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
937 PM CDT TUE JUL 5 1994
 
THE NATIONAL WEATHER SERVICE IN NORFOLK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL NEBRASKA
 
   ...BOONE COUNTY
 
AT 935 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 50 MILES
SOUTHWEST OF NORFOLK OR NEAR PRIMROSE. THIS STORM IS MOVING NORTHEAST AT
20 MPH AND COULD PRODUCE VERY LARGE HAIL. THE STORM IS HEADED TOWARD
LORETTO AND PETERSBURG WHICH ARE AROUND 40 MILES SOUTHWEST OF NORFOLK.
 
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.
 
TDK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 10:38 PM CDTSevere Thunderstorm WarningLBFCuming52 min
Jul 6, 12:29 AM CDTSevere Thunderstorm WarningLBFBoone, Platte46 min
Jul 6, 4:31 PM CDTSevere Thunderstorm WarningLBFGrant59 min
Jul 6, 4:47 PM CDTSevere Thunderstorm WarningLBFGrant73 min
Jul 6, 5:21 PM CDTSevere Thunderstorm WarningLBFHooker69 min
Jul 6, 6:02 PM CDTSevere Thunderstorm WarningLBFGrant, Hooker58 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.