Alert archive / Nebraska / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 56, NWS North Platte, NE

May 30, 1996Chase County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 30, 1996, 7:50 PM MDT for Chase County, Nebraska. It was in force for 25 min. 2 reports 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: May 30, 1996, 7:50 PM MDT (01:50 UTC)
Expired: May 30, 1996, 8:15 PM MDT
In force: 25 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Chase County, NE

The radar

The Goodland radar (KGLD), 129 km from the middle of the area, began a volume at 01:49 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
May 30, 8:00 PM MDT	Hail 0.75	Champion, NE
May 30, 8:12 PM MDT	Hail 1	Imperial, 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, 1.8 hours before the alert went out and 114 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: 302 J/kg
Mixed-layer CIN: -293 J/kg
Mixed-layer LCL: 794 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 170 m²/s²
0-3 km storm-relative helicity: 264 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 310151
SVRLBF
NEC029-310215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
850 PM CDT (750 PM MDT) THU MAY 30 1996
 
THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  915 PM CDT (815 PM MDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST NEBRASKA
 
   ...SOUTHWESTERN CHASE COUNTY
 
AT 850 PM CDT (750 PM MDT) DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
20 MILES SOUTHWEST OF IMPERIAL. THIS STORM WAS MOVING EAST AT 20 MPH.
THIS STORM SHOULD CONTINUE TO MOVE EAST ACROSS THE SOUTHERN PORTION OF
THE COUNTY...AND SHOULD BE LOCATED ABOUT 6 MILES SOUTHWEST OF CHAMPION
AT 915 PM CDT (815 PM MDT).
 
IF YOU ARE IN THE PATH OF THIS STORM YOU SHOULD MOVE INSIDE A
STRONG BUILDING.  STAY AWAY FROM WINDOWS.  DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED.  MOTORISTS
SHOULD NOT DRIVE ONTO WATER COVERED ROADWAYS.

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

Local storm report, May 30, 7:04 PM MDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
803 PM CDT THU MAY 30 1996

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

07445 PM    1 MILE NORTH OF ANTIOCH   NE   0.88 INCH HAIL
05/30/96   SHERIDAN                       NICKEL SIZE HAIL FELL ONE
                                          MILE NORTH OF ANTIOCH

SP

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 8:10 PM MDT	Severe Thunderstorm Warning	LBF	Hooker, Thomas	65 min
May 30, 8:17 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	43 min
May 30, 8:33 PM MDT	Severe Thunderstorm Warning	LBF	Chase	42 min
May 30, 8:59 PM MDT	Severe Thunderstorm Warning	LBF	Hayes	61 min
May 30, 9:25 PM MDT	Severe Thunderstorm Warning	LBF	Brown, Cherry	65 min
May 31, 5:17 PM MDT	Severe Thunderstorm Warning	LBF	Holt	58 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.