Alert archive / Nebraska / Tornado Warnings in 2003

Tornado Warning 59, NWS North Platte, NE

July 8, 2003Grant County, Hooker County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 8, 2003, 8:57 PM MDT for Grant County, Hooker County, Nebraska. It was in force for 48 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: Jul 8, 2003, 8:57 PM MDT (02:57 UTC)
Expired: Jul 8, 2003, 9:45 PM MDT
In force: 48 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

Counties Grant County, NE, Hooker County, NE

The radar

The North Platte radar (KLNX), 86 km from the middle of the area, began a volume at 02:59 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 8, 7:45 PM MDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.0 hours before the alert went out and 124 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: 2953 J/kg
Mixed-layer CIN: -140 J/kg
Mixed-layer LCL: 1593 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 228 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.5

Open this sounding in Storm Lab

The text

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

474 
WFUS53 KLBF 090257
TORLBF
NEC075-091-090345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
857 PM MDT TUE JUL 8 2003

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  GRANT COUNTY IN WEST CENTRAL NEBRASKA
  WESTERN HOOKER COUNTY IN WEST CENTRAL NEBRASKA

* UNTIL 945 PM MDT

* AT 854 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM WITH STRONG
  ROTATION 3 MILES NORTH OF HYANNIS...OR ABOUT 32 MILES NORTH OF
  ARTHUR...MOVING SOUTHEAST AT 25 MPH. THIS STORM IS CAPABLE OF
  PRODUCING A TORNADO AT ANY TIME.

* THE DEVELOPING TORNADO WILL BE NEAR...
  5 MILES SOUTHWEST OF WHITMAN AROUND 915 PM MDT

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM MDT WEDNESDAY MORNING
FOR NORTHWESTERN NEBRASKA.

LAT...LON 4205 10195 4178 10201 4176 10107 4207 10110

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 8:29 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	61 min
Jul 8, 8:48 PM MDT	Severe Thunderstorm Warning	LBF	Grant, Hooker	57 min
Jul 8, 9:32 PM MDT	Severe Thunderstorm Warning	LBF	Brown, Cherry	58 min
Jul 8, 9:48 PM MDT	Severe Thunderstorm Warning	LBF	Hooker	57 min
Jul 8, 10:07 PM MDT	Severe Thunderstorm Warning	LBF	McPherson	53 min
Jul 8, 10:25 PM MDT	Tornado Warning	LBF	McPherson	35 min
Jul 8, 10:50 PM MDT	Tornado Warning	LBF	Logan	40 min
Jul 8, 11:15 PM MDT	Tornado Warning	LBF	Lincoln	30 min
Jul 8, 11:30 PM MDT	Tornado Warning	LBF	Logan	30 min
Jul 8, 11:34 PM MDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Garfield, Holt, Loup, Wheeler	56 min
Jul 9, 12:03 AM MDT	Tornado Warning	LBF	Custer	27 min
Jul 9, 1:08 AM MDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Loup, Thomas	67 min
Jul 9, 2:16 AM MDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Garfield, Loup	59 min

Nearby

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