Alert archive / Nebraska / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 23, NWS North Platte, NE

June 15, 1992Keith County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 15, 1992, 3:40 AM MDT for Keith County, Nebraska. It was in force for 50 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: Jun 15, 1992, 3:40 AM MDT (09:40 UTC)
Expired: Jun 15, 1992, 4:30 AM MDT
In force: 50 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Keith County, NE

What was reported inside it

Time	Report	Where	Remark
Jun 15, 3:45 AM MDT	Hail 1.75	Keith, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 9.7 hours before the alert went out and 89 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: 171 J/kg
Mixed-layer CIN: -146 J/kg
Mixed-layer LCL: 1449 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 147 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 150941 COR
SVRLBF
NEC101-151045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED...CORRECTED EXPIRATION TIME...
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
340 AM MDT MON JUN 15 1992

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 430 AM MDT FOR PEOPLE IN THE FOLLOWING
COUNTY

   IN THE SOUTHWEST PART OF NEBRASKA
      KEITH

AT 325 AM MDT SPOTTERS REPORTED PEA TO WALNUT SIZED HAIL WITH
VERY HEAVY RAIN FALLING 2 MILES WEST AND 1 MILE NORTH OF BRULE.
BRULE IS LOCATED 48 MILES WEST OF NORTH PLATTE.

THIS THUNDERSTORM WAS MOVING NORTHEAST AT 25 MPH...AND WILL AFFECT
OGALLALA...LAKE MCCONAUGHY...AND KEYSTONE.
SEVERE THUNDERSTORMS PRODUCE DAMAGING UWINDS IN EXCESS OF 60 MPH...
LARGE HAIL GREATER THAN 3/4 INCH IN DIAMETER...DEADLY LIGHTNING
AND VERY HEAVY RAIN THAT CAN FLOOD A LOW LYING AREA QUICKLY.

 SC

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, Jun 15, 2:15 AM MDT, 1 hour 25 minutes before

NEZ006-006-012-150813-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
313 AM CDT MON JUN 15 1992

...VERY STRONG THUNDERSTORMS WERE MOVING INTO PARTS OF
   SOUTHWEST AND WEST CENTRAL NEBRASKA...

AT 313 AM CDT...A LINE OF VERY STRONG THUNDERSTORMS WERE MOVING INTO
WESTERN KEITH COUNTY...ABOUT 50 MILES WEST OF NORTH PLATTE NE. THE
LINE EXTENDED FROM ABOUT 20 MILES WEST OF OGALLALA NE...SOUTHWEST INTO
COLORADO.

BRIEF PERIOD OF HEAVY RAIN AND HAIL MAY BE PRODUCED BY THESE THUNDERSTORMS
AS THEY MOVE NORTHEAST AT ABOUT 25 MILES HOUR.

THE LINE EXTENDED NORTH INTO ARTHUR...CONTINUING NORTHEAST TO NEAR MULLEN
IN HOOKER COUNTY...WHICH IS ABOUT 60 MILES SOUTH SOUTHWEST OF VALENTINE NE.
LIGHT RAIN SHOWERS WERE INDICATED BY RADAR WITH THE LINE NORTH OF OGALLALA.
RN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 4:02 AM MDT	Severe Thunderstorm Warning	LBF	Lincoln	43 min
Jun 15, 4:45 AM MDT	Severe Thunderstorm Warning	LBF	Lincoln	60 min
Jun 15, 3:21 PM MDT	Severe Thunderstorm Warning	LBF	Keith	69 min
Jun 15, 3:30 PM MDT	Tornado Warning	LBF	Keith	30 min
Jun 15, 3:41 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	34 min
Jun 15, 4:19 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	26 min
Jun 15, 4:47 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	28 min
Jun 15, 4:54 PM MDT	Severe Thunderstorm Warning	LBF	Hayes	51 min
Jun 15, 5:18 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	57 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1992 Every severe thunderstorm warning in 1992

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.