Alert archive / Nebraska / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 701
The Storm Prediction Center issued this severe thunderstorm watch at Aug 29, 2001, 6:15 PM CDT for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 29, 2001, 6:15 PM CDT (23:15 UTC)
- Expired
- Aug 29, 2001, 11:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 47 counties
Dickinson County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Blue Earth County, MN, Brown County, MN, Cottonwood County, MN, Jackson County, MN, Le Sueur County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Pipestone County, MN, Redwood County, MN, Rock County, MN, Watonwan County, MN, Antelope County, NE, Blaine County, NE, Boyd County, NE, Cedar County, NE, Dakota County, NE, Dixon County, NE, Garfield County, NE, Holt County, NE, Knox County, NE, Loup County, NE, Madison County, NE, Pierce County, NE, Rock County, NE, Stanton County, NE, Wayne County, NE, Wheeler County, NE, Bon Homme County, SD, Clay County, SD, Hutchinson County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Minnehaha County, SD, Moody County, SD, Turner County, SD, Union County, SD, Yankton County, SD
The radar
The Sioux Falls radar (KFSD), 106 km from the middle of the area, began a volume at 23:19 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
20 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 6:17 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 43 min |
| Aug 29, 6:28 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 32 min |
| Aug 29, 6:40 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 35 min |
| Aug 29, 6:46 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Moody | 44 min |
| Aug 29, 6:49 PM CDT | Severe Thunderstorm Warning | LBF | Holt | 56 min |
| Aug 29, 6:58 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 32 min |
| Aug 29, 6:59 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 46 min |
| Aug 29, 7:08 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha | 37 min |
| Aug 29, 7:16 PM CDT | Severe Thunderstorm Warning | OAX | Knox | 59 min |
| Aug 29, 7:29 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 31 min |
| Aug 29, 7:37 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Thomas | 53 min |
| Aug 29, 7:55 PM CDT | Severe Thunderstorm Warning | FSD | Rock | 35 min |
| Aug 29, 7:59 PM CDT | Severe Thunderstorm Warning | FSD | Pipestone | 31 min |
| Aug 29, 8:30 PM CDT | Severe Thunderstorm Warning | LBF | Blaine | 60 min |
| Aug 29, 8:45 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 15 min |
| Aug 29, 9:04 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 26 min |
| Aug 29, 9:07 PM CDT | Severe Thunderstorm Warning | FSD | Nobles, Rock | 23 min |
| Aug 29, 9:12 PM CDT | Severe Thunderstorm Warning | OAX | Madison, Pierce | 48 min |
| Aug 29, 9:36 PM CDT | Flash Flood Warning | FSD | McCook, Minnehaha | 114 min |
| Aug 29, 10:56 PM CDT | Severe Thunderstorm Warning | OAX | Thurston, Wayne | 49 min |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 11.3 hours before the alert went out and 234 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
- 559 J/kg
- Mixed-layer CIN
- -400 J/kg
- Mixed-layer LCL
- 2208 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 149 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 |
|---|---|---|---|---|
| Aug 29, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | Becker, Beltrami, Big Stone, Cass, Chippewa, Clay and 24 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Nebraska, 2001Severe Thunderstorm Watches in Minnesota, 2001Severe Thunderstorm Watches in South Dakota, 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.