Alert archive / Iowa / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 634
The Storm Prediction Center issued this severe thunderstorm watch at Aug 1, 2000, 2:30 PM CDT for 30 counties in Iowa; 11 counties in Minnesota; Buffalo County, Crawford County, Grant County, Wisconsin. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 1, 2000, 2:30 PM CDT (19:30 UTC)
- Expired
- Aug 1, 2000, 8:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 44 counties
Allamakee County, IA, Benton County, IA, Black Hawk County, IA, Bremer County, IA, Buchanan County, IA, Butler County, IA, Cerro Gordo County, IA, Chickasaw County, IA, Clayton County, IA, Delaware County, IA, Fayette County, IA, Floyd County, IA, Franklin County, IA, Grundy County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Howard County, IA, Humboldt County, IA, Jasper County, IA, Kossuth County, IA, Marshall County, IA, Mitchell County, IA, Poweshiek County, IA, Story County, IA, Tama County, IA, Winnebago County, IA, Winneshiek County, IA, Worth County, IA, Wright County, IA, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Steele County, MN, Wabasha County, MN, Winona County, MN, Buffalo County, WI, Crawford County, WI, Grant County, WI
The radar
The La Crosse radar (KARX), 163 km from the middle of the area, began a volume at 19:32 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
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 2:30 PM CDT | Severe Thunderstorm Warning | ARX | Olmsted, Wabasha | 60 min |
| Aug 1, 3:09 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 31 min |
| Aug 1, 3:25 PM CDT | Severe Thunderstorm Warning | ARX | Olmsted, Wabasha | 65 min |
| Aug 1, 3:37 PM CDT | Severe Thunderstorm Warning | ARX | Fillmore, Houston | 53 min |
| Aug 1, 4:30 PM CDT | Severe Thunderstorm Warning | ARX | Fillmore, Houston | 60 min |
| Aug 1, 4:41 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 64 min |
| Aug 1, 5:20 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 55 min |
| Aug 1, 5:26 PM CDT | Tornado Warning | ARX | Winneshiek | 64 min |
| Aug 1, 5:45 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 60 min |
| Aug 1, 6:19 PM CDT | Severe Thunderstorm Warning | ARX | Clayton, Fayette | 56 min |
| Aug 1, 6:42 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 33 min |
| Aug 1, 7:13 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 77 min |
| Aug 1, 7:13 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 77 min |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 7.5 hours before the alert went out and 198 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
- 14 J/kg
- Mixed-layer CIN
- -274 J/kg
- Mixed-layer LCL
- 2447 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 31, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Anoka, Benton, Carlton, Carver, Cass and 28 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Iowa, 2000Severe Thunderstorm Watches in Minnesota, 2000Severe Thunderstorm Watches in Wisconsin, 2000Every severe thunderstorm watch in 2000
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.