Alert archive / Nebraska / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 183, NWS North Platte, NE

July 15, 1996Garden County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 15, 1996, 3:30 PM MDT for Garden County, Nebraska. It was in force for 50 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
Jul 15, 1996, 3:30 PM MDT (21:30 UTC)
Expired
Jul 15, 1996, 4:20 PM MDT
In force
50 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Garden County, NE

The radar

The North Platte radar (KLNX), 151 km from the middle of the area, began a volume at 21:32 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

TimeReportWhereRemark
Jul 15, 3:40 PM MDTHail 1.75Oshkosh, NE
Jul 15, 4:28 PM MDTThunderstorm Wind 52Lewellen, 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 12:00Z, 9.5 hours before the alert went out and 155 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, N. Platte/Lee Bi, NE at 12:00Z on 1996-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, N. Platte/Lee Bi, NE at 12:00Z on 1996-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1954 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
142 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 152131
SVRLBF
NEC069-152220-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
430 PM CDT (330 PM MDT) MON JUL 15 1996

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 420 PM MDT (520 PM CDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN THE PANHANDLE OF NEBRASKA

   ...EAST CENTRAL GARDEN COUNTY
 
AT 329 PM MDT...A SEVERE THUNDERSTORM WAS INDICATED BY NORTH PLATTE
DOPPLER RADAR 44 MILES NORTHWEST OF OGALLALA OR 7 MILES EAST
SOUTHEAST OF CRESCENT LAKE MOVING EAST SOUTHEAST AT 29 MPH. THIS
STORM IS EXPECTED TO REMAIN IN OPEN COUNTRY.



 A TORNADO WATCH IS ALSO IN EFFECT.  SEVERE THUNDRERSTORMS CAN
PRODUCE TORNADOES.
 
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.

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

Special weather statement, Jul 15, 10:00 AM MDT, 5 hours 30 minutes before
NEZ004>010-022>029-035>038-056>059-069>071-161200-

SEVERE WEATHER OUTLOOK FOR WESTERN AND NORTH CENTRAL NEBRASKA
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1100 AM CDT (1000 AM MDT) MON JUL 15 1996

THIS OUTLOOK PERTAINS TO THE FOLLOWING NEBRASKA COUNTIES...

ARTHUR     BLAINE     BOYD       BROWN      CHASE      CHERRY
CUSTER     DEUEL      FRONTIER   GARDEN     GARFIELD   GRANT
HAYES      HOLT       HOOKER     KEITH      KEYA PAHA  LINCOLN
LOGAN      LOUP       MCPHERSON  PERKINS    ROCK       SHERIDAN
THOMAS     WHEELER

...STORM SPOTTER GROUPS IN WESTERN AND PARTS OF NORTH CENTRAL
NEBRASKA SHOULD BE ALERT AND READY FOR ACTIVATION THIS EVENING
AND TONIGHT...

THERE IS A SLIGHT CHANCE FOR SEVERE THUNDERSTORMS BY EARLY EVENING
ACROSS THE WESTERN MOST PORTION OF THE OUTLOOK AREA INITIALLY THEN
TO WEST OF A LINE FROM VALENTINE TO BROKEN BOW BY TONIGHT.
THUNDERSTORMS ARE POSSIBLE THIS EVENING AND TONIGHT ACROSS THE REMAINDER
OF THE OUTLOOK AREA...BUT ARE NOT EXPECTED TO REACH SEVERE LIMITS.

AN AREA OF LOW PRESSURE WILL DEVELOP ALONG THE FOOTHILLS OF THE ROCKIES
BY AFTERNOON. AHEAD OF THIS FEATURE...SOUTHERLY WINDS WILL TRANSPORT
WARM AIR AND ADDITIONAL MOISTURE BACK INTO THE WESTERN PORTION OF THE
OUTLOOK AREA. THE RESULT WILL BE A DESTABILIZING ATMOSPHERE
ALLOWING THE DEVELOPMENT OF THUNDERSTORMS BY LATE AFTERNOON ACROSS THE
WEST. AS AN UPPER LEVEL DISTURBANCE APPROACHES THE AREA
TONIGHT...ADDITIONAL ENERGY WILL BE AVAILABLE FOR SOME THUNDERSTORMS TO
BECOME SEVERE OVER THE WESTERN PORTION OF THE OUTLOOK AREA INITIALLY.

JWS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 4:07 PM MDTSevere Thunderstorm WarningLBFGarden, Keith48 min
Jul 15, 4:34 PM MDTTornado WarningLBFKeith31 min
Jul 15, 5:03 PM MDTSevere Thunderstorm WarningLBFKeith62 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1996Every 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.