Alert archive / Nebraska / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 41, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Jun 4, 1991, 2:37 PM CDT for Antelope County, Knox County, Nebraska. It was in force for 68 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 4, 1991, 2:37 PM CDT (19:37 UTC)
- Expired
- Jun 4, 1991, 3:45 PM CDT
- In force
- 68 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
Counties Antelope County, NE, Knox County, NE
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 4, 2:50 PM CDT | Hail 1.75 | Antelope, NE | |
| Jun 4, 3:00 PM CDT | Hail 0.75 | Knox, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Omaha, NE (KOVN), launched 12:00Z, 7.6 hours before the alert went out and 180 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
- 1264 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 911 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
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
Special weather statement, Jun 4, 12:43 PM CDT, 1 hour 54 minutes before
NEZ006-007-012-016-017-041900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 145 PM CDT TUE JUN 4 1991 NOAA WEATHER RADIO WXL 68 ORIGINATING FROM THE WEATHER SERVICE OFFICE AT NORTH! PLATTE...WILL BE DOWN FOR MAINTENANCE UNTILL ABOUT 2 PM CDT THIS AFTERNOON. RN
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 1:09 PM CDT | Tornado Warning | LBF | Holt | 36 min |
| Jun 4, 3:15 PM CDT | Tornado Warning | LBF | Madison | 30 min |
| Jun 4, 3:47 PM CDT | Severe Thunderstorm Warning | LBF | Madison, Pierce | 58 min |
| Jun 4, 3:51 PM CDT | Tornado Warning | LBF | Madison, Stanton | 39 min |
| Jun 4, 4:31 PM CDT | Tornado Warning | LBF | Madison, Pierce, Stanton, Wayne | 44 min |
| Jun 4, 4:46 PM CDT | Flash Flood Warning | LBF | Madison, Pierce, Stanton, Wayne | 4 hr |
| Jun 4, 5:18 PM CDT | Severe Thunderstorm Warning | LBF | Madison, Stanton, Wayne | 57 min |
| Jun 4, 5:35 PM CDT | Tornado Warning | LBF | Stanton | 40 min |
| Jun 4, 6:17 PM CDT | Tornado Warning | LBF | Cuming | 43 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.