Alert archive / Nebraska / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 342, NWS North Platte, NE

August 15, 1996Arthur County, Grant County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 15, 1996, 6:44 PM MDT for Arthur County, Grant County, Nebraska. It was in force for 56 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: Aug 15, 1996, 6:44 PM MDT (00:44 UTC)
Expired: Aug 15, 1996, 7:40 PM MDT
In force: 56 min
Issued by: NWS North Platte, NE
Area: Whole counties

Counties Arthur County, NE, Grant County, NE

The radar

The North Platte radar (KLNX), 98 km from the middle of the area, began a volume at 00:48 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
Aug 15, 7:00 PM MDT	Hail 0.75	Ashby, 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, 0.7 hours before the alert went out and 115 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: 870 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 1067 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 147 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 160048 COR
SVRLBF
NEC005-075-160140-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...COR TO ALL OF ARTHUR COUNTY...
NATIONAL WEATHER SERVICE NORTH PLATTE NE
744 PM CDT (644 PM MDT) THU AUG 15 1996

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 740 PM MDT (840 PM CDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN WEST CENTRAL NEBRASKA

   ...ARTHUR COUNTY
   ...SOUTHERN GRANT COUNTY

AT 742 PM CDT...NORTH PLATTE DOPPLER RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS EXTENDING FROM 16 MILES SOUTHWEST OF HYANNIS TO
OSHKOSH...OR FROM 42 MILES NORTHWEST OF OGALLALA TO 32 MILES
NORTHWEST OF OGALLALA.  THE LINE WAS MOVING TO THE EAST-SOUTHEAST AT
25 MPH.

THIS LINE WILL BE NEAR THE FOLLOWING LOCATIONS AT THE FOLLOWING
TIMES:

ARTHUR......AT 835 PM CDT.

OTHERWISE...THE LINE WILL PASS ACROSS RURAL AREAS OF SOUTHERN GRANT
AND ALL OF ARTHUR COUNTIES.

IF YOU ARE IN THE PATH OF THIS STORM...GO INSIDE A STRONG BUILDING.
STAY AWAY FROM WINDOWS.  DO NOT USE TELEPHONES OR ELECTRICAL
APPLIANCES...UNLESS IN AN EMERGENCY...UNTIL THE STORM HAS PASSED.

IF SEVERE WEATHER IS OBSERVED...CONTACT YOUR LOCAL LAW ENFORCEMENT
,AGENCY AND ASK THEM TO RELAY YOUR INFORMATION TO THE NATIONAL
WEATHER SERVICE.


SP

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, Aug 15, 6:22 PM MDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
721 PM CDT THU AUG 15 1996

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

0620 PM    BINGHAM                   NE   0.75 INCH HAIL
08/15/96   GARDEN

KMD

Local storm report, Aug 15, 6:25 PM MDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED LOCATION
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
724 PM CDT THU AUG 15 1996

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

0620 PM    6 S BINGHAM                   NE   0.75 INCH HAIL
08/15/96   GARDEN

POWER

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 15, 6:01 PM MDT	Severe Thunderstorm Warning	LBF	Garden	59 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.