Alert archive / Nebraska / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 76, NWS North Platte, NE

June 21, 1991Hayes County, Lincoln County, Perkins County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 21, 1991, 12:47 AM CDT for Hayes County, Lincoln County, Perkins County, Nebraska. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Jun 21, 1991, 12:47 AM CDT (05:47 UTC)
Expired
Jun 21, 1991, 1:45 AM CDT
In force
58 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Hayes County, NE, Lincoln County, NE, Perkins County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.8 hours before the alert went out and 59 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 00:00Z on 1991-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1618 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 1991-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
1618 J/kg
Mixed-layer CIN
-189 J/kg
Mixed-layer LCL
2050 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
14 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Jun 20, 7:52 PM CDT, 4 hours 55 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
752 PM CDT THU JUN 20 1991

...REPORTS FROM JUNE 18 1991 ( RESENT )...

TIME             LOCATION                         EVENT

422 PM MDT       ASHBY                            BASEBALL SIZED HAIL

546 PM MDT       15 N ARTHUR                      2.5 INCH HAIL

616 PM MDT       3 W ARTHUR                       TORNADO

635 PM MDT       ARTHUR                           MARBLE HAIL

742 PM MDT       VENANGO                          PEA HAIL

743 PM MDT       OGALLALA AWOS                    GUST TO 56 MPH
755 PM MDT       6 SW OGALLALA                    FUNNEL CLOUD

800 PM MDT       GRANT                            POWER LINES DOWN
(TIME EST)                                        TREE AND BUILDING
                                                  DAMAGE

815 PM MDT       6 SW OGALLALA                    MARBLE HAIL

920 PM CDT       5 NE TRYON                       PEA HAIL

825 PM MDT       KEYSTONE                         PEA HAIL

934 PM CDT       10 N WALLACE                     FUNNEL CLOUD

938 PM CDT       TRYON                            20 TO 30 MPH WINDS

945 PM CDT       HAYES CENTER                     40 MPH WINDS

950 PM CDT       20 SW HERSHEY                    FUNNEL CLOUD

1020 PM CDT      LAKE MALONEY                     ROTATING WALL CLOUD
                                                  PEA HAIL
1020 PM CDT      STAPLETON                        MARBLE HAIL

1028 PM CDT      NORTH PLATTE                     ROTATING WALL CLOUD

1050 PM CDT      2 W BRADY                        FUNNEL CLOUD

1101 PM CDT      10 S BRADY                       PEA HAIL

1108 PM CDT      10 S BRADY                       GOLF BALL HAIL

WALAWENDER
Special weather statement, Jun 20, 9:41 PM CDT, 3 hours 6 minutes before
NEZ016-210340-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
840 PM MDT THU JUN 20 1991

...STRONG THUNDERSTORM MOVING INTO SOUTHWEST NEBRASKA...

AT 835 PM MDT...RADAR SHOWED A THUNDERSTORM WITH VERY HEAVY RAIN AND
POSSIBLY SMALL HAIL 10 MILES SOUTHWEST OF LAMAR...OR 75 MILES
SOUTHWEST OF NORTH PLATTE.  THE STORM WAS MOVING EAST NORTHEAST AT 15
MPH.

THIS STORM WILL BE MOVING INTO WESTERN CHASE COUNTY DURING THE NEXT
HOUR.  PERSONS IN LAMAR...CHAMPION AND IMPERIAL CAN EXPECT VERY HEAVY
RAIN...SMALL HAIL...GUSTY WINDS AND DANGEROUS LIGHTNING WITH THIS
STORM.

IF THREATENING WEATHER APPROACHES...MOVE TO A PLACE OF SHELTER
IMMEDIATELY.

WALAWENDER
Special weather statement, Jun 20, 10:34 PM CDT, 2 hours 13 minutes before
NEZ012-210435-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
935 PM MDT THU JUN 20 1991

...STRONG THUNDERSTORM DEVELOPING IN SOUTHWEST NEBRASKA...

AT 930 PM MDT...RADAR SHOWED A THUNDERSTORM WITH VERY HEAVY RAIN AND
POSSIBLY SMALL HAIL FROM ROSCOE TO PAXTON...OR ABOUT 40 MILES WEST OF
NORTH PLATTE.  THE STORM WAS MOVING EAST AT 15 MPH.

THIS STORM WILL BE MOVING THOUGH EASTERN KEITH AND WESTERN LINCOLN
COUNTY DURING THE NEXT HOUR.  PERSONS IN PAXTON...SUTHERLAND AND
HERSHEY CAN EXPECT VERY HEAVY RAIN...SMALL HAIL...GUSTY WINDS AND
DANGEROUS LIGHTNING WITH THIS STORM.

IF THREATENING WEATHER APPROACHES...MOVE TO A PLACE OF SHELTER
IMMEDIATELY.

WALAWENDER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 10:47 PM CDTSevere Thunderstorm WarningLBFKeith, Lincoln58 min
Jun 20, 11:45 PM CDTSevere Thunderstorm WarningLBFKeith, Lincoln, Perkins60 min
Jun 21, 12:07 AM CDTTornado WarningLBFChase, Perkins38 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1991Every severe thunderstorm warning in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.