Alert archive / Nebraska / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 524
The Storm Prediction Center issued this severe thunderstorm watch at Jul 8, 2001, 3:45 AM CDT for 17 counties in Nebraska. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 8, 2001, 3:45 AM CDT (08:45 UTC)
- Expired
- Jul 8, 2001, 7:00 AM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
Counties Boone County, NE, Butler County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Garfield County, NE, Greeley County, NE, Howard County, NE, Madison County, NE, Nance County, NE, Platte County, NE, Polk County, NE, Saunders County, NE, Sherman County, NE, Stanton County, NE, Valley County, NE, Wheeler County, NE
The radar
The Omaha radar (KOAX), 152 km from the middle of the area, began a volume at 08:49 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.
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 3:54 AM CDT | Severe Thunderstorm Warning | LBF | Garfield, Wheeler | 36 min |
| Jul 8, 3:56 AM CDT | Severe Thunderstorm Warning | GID | Greeley | 64 min |
| Jul 8, 4:11 AM CDT | Severe Thunderstorm Warning | OAX | Boone | 64 min |
| Jul 8, 4:31 AM CDT | Severe Thunderstorm Warning | LBF | Wheeler | 14 min |
| Jul 8, 5:03 AM CDT | Severe Thunderstorm Warning | OAX | Madison, Pierce | 57 min |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 8.8 hours before the alert went out and 152 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
- 3650 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 1555 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 31.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | Arthur, Blaine, Brown, Cherry, Custer, Deuel and 10 more | 5 hr |
| Jul 8, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | Banner, Box Butte, Cheyenne, Dawes, Kimball, Morrill and 2 more | 7 hr |
| Jul 8, 4:30 PM CDT | Severe Thunderstorm Watch | SPC | Antelope, Boone, Burt, Butler, Cedar, Colfax and 14 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Nebraska, 2001Every severe thunderstorm watch 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.