Alert archive / Nebraska / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 191, NWS North Platte, NE

July 20, 1996Cherry County, Sheridan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 20, 1996, 10:45 PM MDT for Cherry County, Sheridan County, Nebraska. It was in force for 60 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 20, 1996, 10:45 PM MDT (04:45 UTC)
Expired: Jul 20, 1996, 11:45 PM MDT
In force: 60 min
Issued by: NWS North Platte, NE
Area: Whole counties

Counties Cherry County, NE, Sheridan County, NE

The radar

The North Platte radar (KLNX), 116 km from the middle of the area, began a volume at 04:45 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jul 20, 11:05 PM MDT	Hail 0.88	Rushville, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 4.8 hours before the alert went out and 183 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1748 J/kg
Mixed-layer CIN: -117 J/kg
Mixed-layer LCL: 1139 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 27 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 210446
SVRLBF
NEC031-161-210545-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1145 PM CDT (1045 PM MDT) SAT JUL 20 1996

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 AM CDT (1145 PM MDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTH CENTRAL NEBRASKA

   ...SOUTHWESTERN CHERRY COUNTY

IN THE PANHANDLE OF NEBRASKA

   ...SOUTHEASTERN SHERIDAN COUNTY
 
AT 1141 PM CDT (1041 PM MDT)...A SEVERE THUNDERSTORM WAS INDICATED BY
NORTH PLATTE DOPPLER RADAR 30 MILES EAST NORTHEAST OF ALLIANCE OR 7
MILES EAST SOUTHEAST OF SMITH LAKE MOVING EAST AT 29 MPH. THIS STORM
IS EXPECTED TO REMAIN IN RURAL AREAS. THE STORM WILL BE ABOUT 25
MILES NORTHEAST OF ELLSWORTH BY 1100 PM MDT...AND WILL BE ABOUT 20
MILES NORTH OF HYANNIS BY 1130 PM MDT.
 
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING. IF YOU ARE IN THE PATH OF THIS STORM
YOU SHOULD MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE WARNED AREA
UNTIL 400 AM MDT.

...THIS REPLACES THE WARNING PREVIOUSLY IN EFF6ECT FOR WESTERN AND
CENTRAL SHERIDAN COUNTY...

MUTCHLER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 9:44 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	61 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1996 Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.