Alert archive / Nebraska / Tornado Watches in 2001
Tornado Watch 765
The Storm Prediction Center issued this tornado watch at Oct 9, 2001, 7:00 PM CDT for 6 counties in Iowa; 23 counties in Nebraska. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 9, 2001, 7:00 PM CDT (00:00 UTC)
- Expired
- Oct 10, 2001, 12:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 29 counties
Fremont County, IA, Harrison County, IA, Mills County, IA, Monona County, IA, Plymouth County, IA, Woodbury County, IA, Burt County, NE, Butler County, NE, Cass County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Dodge County, NE, Douglas County, NE, Lancaster County, NE, Madison County, NE, Otoe County, NE, Pierce County, NE, Platte County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE
The radar
The Omaha radar (KOAX), 63 km from the middle of the area, began a volume at 00:03 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
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 9, 7:15 PM CDT | Tornado Warning | OAX | Madison, Platte | 30 min |
| Oct 9, 7:44 PM CDT | Tornado Warning | OAX | Madison, Platte, Stanton | 46 min |
| Oct 9, 8:20 PM CDT | Tornado Warning | OAX | Stanton | 40 min |
| Oct 9, 8:30 PM CDT | Flash Flood Warning | OAX | Boone, Platte | 3 hr |
| Oct 9, 8:30 PM CDT | Severe Thunderstorm Warning | OAX | Cuming | 60 min |
| Oct 9, 9:28 PM CDT | Severe Thunderstorm Warning | OAX | Cuming | 32 min |
| Oct 9, 9:39 PM CDT | Severe Thunderstorm Warning | OAX | Wayne | 36 min |
| Oct 9, 10:12 PM CDT | Severe Thunderstorm Warning | OAX | Cuming, Dodge | 33 min |
| Oct 9, 10:57 PM CDT | Severe Thunderstorm Warning | OAX | Cedar | 33 min |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 0.0 hours before the alert went out and 63 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
- 941 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 828 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 261 m²/s²
- 0-3 km storm-relative helicity
- 351 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 5.5
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 |
|---|---|---|---|---|
| Oct 9, 9:00 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Clay, Fillmore, Gage, Jefferson, Nuckolls and 3 more | 5 hr |
Nearby
Tornado Watches in Nebraska, 2001Tornado Watches in Iowa, 2001Every tornado 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.