Alert archive / Nebraska / Tornado Warnings in 2003

Tornado Warning 26, NWS North Platte, NE

June 11, 2003Rock County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 11, 2003, 7:21 PM CDT for Rock County, Nebraska. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 11, 2003, 7:21 PM CDT (00:21 UTC)
Expired
Jun 11, 2003, 8:15 PM CDT
In force
54 min
Issued by
NWS North Platte, NE
Area
Counties, with a storm outline in the text

County Rock County, NE

The radar

The North Platte radar (KLNX), 98 km from the middle of the area, began a volume at 00:22 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.

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.4 hours before the alert went out and 280 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, Omaha, NE at 00:00Z on 2003-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 2003-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.1939Sfc1 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
26 J/kg
Mixed-layer CIN
-227 J/kg
Mixed-layer LCL
1651 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
164 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.

798 
WFUS53 KLBF 120021
TORLBF
NEC149-120115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
721 PM CDT WED JUN 11 2003

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN ROCK COUNTY IN NORTH CENTRAL NEBRASKA

* UNTIL 815 PM CDT

* AT 717 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM WITH STRONG
  ROTATION 12 MILES NORTHEAST OF ROSE...OR ABOUT 19 MILES SOUTH OF
  BASSETT...MOVING SOUTHEAST AT 15 MPH. THIS STORM IS CAPABLE OF
  PRODUCING A TORNADO AT ANY TIME.

* THE DEVELOPING TORNADO WILL BE NEAR...
  10 MILES NORTHEAST OF ROSE AROUND 740 PM CDT

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT WEDNESDAY EVENING
FOR NORTHWESTERN NEBRASKA. A TORNADO WATCH ALSO REMAINS IN EFFECT
UNTIL 1100 PM CDT WEDNESDAY EVENING FOR NORTH CENTRAL NEBRASKA.

LAT...LON 4242 9963 4208 9966 4209 9923 4247 9926

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 7:01 PM CDTSevere Thunderstorm WarningLBFLincoln44 min
Jun 11, 7:15 PM CDTSevere Thunderstorm WarningLBFBlaine, Brown45 min
Jun 11, 8:04 PM CDTTornado WarningLBFBlaine41 min
Jun 11, 8:07 PM CDTSevere Thunderstorm WarningLBFLoup53 min
Jun 11, 8:08 PM CDTTornado WarningLBFRock37 min
Jun 11, 8:10 PM CDTSevere Thunderstorm WarningLBFFrontier65 min
Jun 11, 8:11 PM CDTSevere Thunderstorm WarningLBFBrown64 min
Jun 11, 8:17 PM CDTSevere Thunderstorm WarningLBFRock58 min
Jun 11, 8:42 PM CDTTornado WarningLBFRock63 min
Jun 11, 8:46 PM CDTTornado WarningLBFBlaine44 min
Jun 11, 9:11 PM CDTTornado WarningLBFLoup49 min

Nearby

Tornado Warnings in Nebraska, 2003Every tornado warning in 2003Tornadoes in 2003

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; radar from the NEXRAD Level II archive.