Alert archive / Nebraska / Tornado Warnings in 2003
Tornado Warning 72, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at Jul 21, 2003, 6:29 PM MDT for Arthur County, Nebraska. It was in force for 31 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 21, 2003, 6:29 PM MDT (00:29 UTC)
- Expired
- Jul 21, 2003, 7:00 PM MDT
- In force
- 31 min
- Issued by
- NWS North Platte, NE
- Area
- Counties, with a storm outline in the text
County Arthur County, NE
The radar
The North Platte radar (KLNX), 91 km from the middle of the area, began a volume at 00:28 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 21, 3:50 PM MDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 0.5 hours before the alert went out and 239 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.
- Mixed-layer CAPE
- 108 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 3151 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
684 WFUS53 KLBF 220029 TORLBF NEC005-220100- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 629 PM MDT MON JUL 21 2003 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * TORNADO WARNING FOR... EASTERN ARTHUR COUNTY IN WEST CENTRAL NEBRASKA * UNTIL 700 PM MDT * AT 628 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM WITH STRONG ROTATION 12 MILES SOUTHEAST OF ARTHUR...MOVING SOUTH AT 25 MPH. THIS STORM IS CAPABLE OF PRODUCING A TORNADO AT ANY TIME. * THE DEVELOPING TORNADO WILL BE NEAR... FARM AND RANGELANDS OF SOUTHEASTERN ARTHUR COUNTY A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM MDT MONDAY EVENING FOR WESTERN NEBRASKA. LAT...LON 4173 10144 4173 10174 4142 10178 4141 10140 $$ POWER
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 6:06 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 54 min |
| Jul 21, 6:06 PM MDT | Tornado Warning | LBF | Chase | 39 min |
| Jul 21, 6:16 PM MDT | Tornado Warning | LBF | Cherry, Grant | 44 min |
| Jul 21, 6:41 PM MDT | Tornado Warning | LBF | Keith | 49 min |
| Jul 21, 6:49 PM MDT | Tornado Warning | LBF | Chase | 26 min |
| Jul 21, 6:51 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 24 min |
| Jul 21, 7:00 PM MDT | Tornado Warning | LBF | Arthur | 30 min |
| Jul 21, 7:07 PM MDT | Severe Thunderstorm Warning | LBF | Frontier | 38 min |
| Jul 21, 7:30 PM MDT | Tornado Warning | LBF | Arthur | 30 min |
| Jul 21, 7:36 PM MDT | Tornado Warning | LBF | Keith | 24 min |
| Jul 21, 8:10 PM MDT | Severe Thunderstorm Warning | LBF | Frontier | 50 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.