Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 129, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Jul 24, 2002, 4:57 PM CDT for Holt County, Nebraska. It was in force for 63 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 24, 2002, 4:57 PM CDT (21:57 UTC)
- Expired
- Jul 24, 2002, 6:00 PM CDT
- In force
- 63 min
- Issued by
- NWS North Platte, NE
- Area
- Counties, with a storm outline in the text
County Holt County, NE
The radar
The North Platte radar (KLNX), 154 km from the middle of the area, began a volume at 21:58 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 24, 5:05 PM CDT | Hail 0.75 | O Neill, NE | |
| Jul 24, 5:17 PM CDT | Hail 1 | Inman, NE | Hail ranged from nickel to quarter size. |
| Jul 24, 5:31 PM CDT | Hail 1.75 | O Neill, 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.
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 24, 4:50 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.0 hours before the alert went out and 210 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
- 888 J/kg
- Mixed-layer CIN
- -329 J/kg
- Mixed-layer LCL
- 1470 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 246 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KLBF 242157 SVRLBF NEC089-242300- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 455 PM CDT WED JUL 24 2002 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... HOLT COUNTY IN NORTH CENTRAL NEBRASKA... * UNTIL 600 PM CDT... * AT 453 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED OF A SEVERE THUNDERSTORM 7 MILES NORTH OF ONEILL...MOVING EAST AT 25 MPH. OTHER STRONG THUNDERSTORMS ARE RAPIDLY DEVELOPING ACROSS HOLT COUNTY. THESE STORMS COULD ALSO BECOME SEVERE. * THIS SEVERE THUNDERSTORM WILL BE... OVER FARM AND RANGELANDS OF EAST CENTRAL HOLT COUNTY AND NORTHEASTERN HOLT COUNTY STAY TUNED FOR UPDATES AND STATEMENTS... IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER IN A SMALL INTERIOR ROOM AWAY FROM WINDOWS. A BASEMENT OFFERS THE BEST PROTECTION. THIS THUNDERSTORM IS CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. LAT...LON 4278 9921 4212 9920 4212 9833 4274 9835
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 5:24 PM CDT | Severe Thunderstorm Warning | LBF | Loup, Rock | 36 min |
| Jul 24, 5:33 PM CDT | Severe Thunderstorm Warning | LBF | Garfield | 57 min |
| Jul 24, 6:00 PM CDT | Severe Thunderstorm Warning | LBF | Holt | 60 min |
| Jul 24, 6:15 PM CDT | Severe Thunderstorm Warning | LBF | Garfield | 45 min |
| Jul 24, 6:28 PM CDT | Tornado Warning | LBF | Holt | 32 min |
| Jul 24, 6:44 PM CDT | Tornado Warning | LBF | Wheeler | 61 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2002Every severe thunderstorm warning in 2002
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; radar from the NEXRAD Level II archive.