Alert archive / Nebraska / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 27, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Apr 29, 2001, 9:25 PM CDT for Boyd County, Keya Paha County, Nebraska. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 29, 2001, 9:25 PM CDT (02:25 UTC)
- Expired
- Apr 29, 2001, 10:30 PM CDT
- In force
- 65 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
Counties Boyd County, NE, Keya Paha County, NE
The radar
The North Platte radar (KLNX), 151 km from the middle of the area, began a volume at 02:27 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
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.4 hours before the alert went out and 226 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
- 913 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 2550 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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.
NWS North Platte, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 29, 6:50 PM CDT, 2 hours 35 minutes earlier.
Area forecast discussion, Apr 29, 6:50 PM CDT, 2 hours 35 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTH PLATTE NE 650 PM CDT SUN APR 29 2001 UPDATED ZONES TO REMOVE WIND ADVISORY...WHICH ACTUALLY EXPIRED. SFC OBS AT ONL SHOW GUSTS TO 30 TO 35 KTS...AND SHOULD STAY UNDER THAT FOR THE EVENING AS FRONT/TROF AXIS APPROACHES. OTHERWISE JUST REMOVED BCMG WORDING IN REST OF ZONES FOR TSRA ONGOING. .LBF...NONE JWS
In the hours before
Local storm report, Apr 29, 6:23 PM CDT, 3 hours 2 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED FORMAT ERROR
NATIONAL WEATHER SERVICE NORTH PLATTE, NE
623 PM CDT SUN APR 29 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0445 PM 18 SE WHITMAN NE .75 INCH HAIL
04/29/01 GRANT REPORTED BY SPOTTERS
0554 PM 9 NNE HAYES CENTER NE .75 INCH HAIL
04/29/01 HAYES REPORTED BY SPOTTERS
0600 PM 7 WSW WELLFLEET NE .75 INCH HAIL
04/29/01 LINCOLN REPORTED BY SPOTTERS
MTMLocal storm report, Apr 29, 7:05 PM CDT, 2 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE, NE
705 PM CDT SUN APR 29 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0700 PM 6 N WELLFLEET NE .88 INCH HAIL
04/29/01 LINCOLN REPORTED BY SPOTTERSLocal storm report, Apr 29, 7:12 PM CDT, 2 hours 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE, NE
712 PM CDT SUN APR 29 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0645 PM 14 NNW NORTH PLATTE NE .75 INCH HAIL
04/29/01 LINCOLN REPORTED BY SPOTTERSLocal storm report, Apr 29, 8:21 PM CDT, 1 hour 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE, NE
821 PM CDT SUN APR 29 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0725 PM 10 W STAPLETON NE .75 INCH HAIL
04/29/01 LOGAN REPORTED BY LINCOLN COUNTY
EMERGENCY MANAGER
MPLocal storm report, Apr 29, 8:53 PM CDT, 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE, NE
853 PM CDT SUN APR 29 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0731 PM 12 SW STAPLETON NE .75 INCH HAIL
04/29/01 LOGAN REPORTED BY SPOTTERS
0731 PM 20 N NORTH PLATTE NE .75 INCH HAIL
04/29/01 LINCOLN REPORTED BY SPOTTERS
0755 PM 11 ESE TRYON NE 1.00 INCH HAIL
04/29/01 MCPHERSON REPORTED BY SPOTTERS
0554 PM 9 NNE HAYES CENTER NE .75 INCH HAIL
04/29/01 HAYES REPORTED BY SPOTTERS
0600 :PM 7 WSW WELLFLEET NE .75 INCH HAIL
04/29/01 LINCOLN REPORTED BY SPOTTERSLocal storm report, Apr 29, 9:03 PM CDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE, NE
903 PM CDT SUN APR 29 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0830 PM PURDUM NE .75 INCH HAIL
04/29/01 BLAINE REPORTED BY SPOTTERS
MPThe office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 7:24 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln, Logan, McPherson | 66 min |
| Apr 29, 7:52 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Thomas | 53 min |
| Apr 29, 8:24 PM CDT | Severe Thunderstorm Warning | LBF | Logan, McPherson | 66 min |
| Apr 29, 8:55 PM CDT | Severe Thunderstorm Warning | LBF | Brown, Rock | 65 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2001Every severe thunderstorm warning in 2001
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.