Alert archive / Missouri / Tornado Watches in 2007
Tornado Watch 572
The Storm Prediction Center issued this tornado watch at Aug 8, 2007, 4:43 PM CDT for 4 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2007, 4:43 PM CDT (21:43 UTC)
- Expired
- Aug 8, 2007, 11:53 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 60 kt
All 56 counties
Adams County, IA, Appanoose County, IA, Clarke County, IA, Davis County, IA, Decatur County, IA, Fremont County, IA, Lucas County, IA, Mills County, IA, Monroe County, IA, Montgomery County, IA, Page County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Wayne County, IA, Atchison County, KS, Brown County, KS, Doniphan County, KS, Jackson County, KS, Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS, Washington County, KS, Adair County, MO, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Caldwell County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Mercer County, MO, Nodaway County, MO, Putnam County, MO, Schuyler County, MO, Sullivan County, MO, Worth County, MO, Cass County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Seward County, NE
The radar
The Omaha radar (KOAX), 153 km from the middle of the area, began a volume at 21:44 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 30%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 40%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
27 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 4:47 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Lancaster, Otoe | 28 min |
| Aug 8, 5:15 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Johnson | 45 min |
| Aug 8, 5:53 PM CDT | Severe Thunderstorm Warning | OAX | Nemaha | 37 min |
| Aug 8, 6:24 PM CDT | Severe Thunderstorm Warning | EAX | Atchison, Nodaway | 36 min |
| Aug 8, 6:27 PM CDT | Severe Thunderstorm Warning | OAX | Nemaha, Richardson | 33 min |
| Aug 8, 6:35 PM CDT | Tornado Warning | EAX | Atchison, Nodaway | 25 min |
| Aug 8, 6:41 PM CDT | Tornado Warning | OAX | Richardson | 34 min |
| Aug 8, 6:43 PM CDT | Severe Thunderstorm Warning | EAX | Atchison, Holt | 47 min |
| Aug 8, 6:47 PM CDT | Flash Flood Warning | EAX | Atchison, Nodaway | 6 hr |
| Aug 8, 6:54 PM CDT | Flash Flood Warning | OAX | Nemaha | 3 hr |
| Aug 8, 6:58 PM CDT | Tornado Warning | EAX | Atchison, Nodaway | 32 min |
| Aug 8, 7:03 PM CDT | Severe Thunderstorm Warning | EAX | Atchison, Nodaway | 27 min |
| Aug 8, 7:10 PM CDT | Tornado Warning | EAX | Nodaway, Worth | 35 min |
| Aug 8, 7:10 PM CDT | Flash Flood Warning | OAX | Richardson | 3 hr |
| Aug 8, 7:15 PM CDT | Tornado Warning | DMX | Taylor | 45 min |
| Aug 8, 7:16 PM CDT | Severe Thunderstorm Warning | OAX | Richardson | 29 min |
| Aug 8, 7:23 PM CDT | Severe Thunderstorm Warning | EAX | Andrew, Gentry, Holt, Nodaway, Worth | 37 min |
| Aug 8, 7:47 PM CDT | Severe Thunderstorm Warning | OAX | Richardson | 28 min |
| Aug 8, 7:52 PM CDT | Flash Flood Warning | TOP | Nemaha | 3 hr |
| Aug 8, 7:53 PM CDT | Severe Thunderstorm Warning | EAX | Andrew, Daviess, DeKalb, Gentry, Grundy, Harrison and 2 more | 37 min |
| Aug 8, 7:57 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold | 48 min |
| Aug 8, 8:02 PM CDT | Flash Flood Warning | DMX | Ringgold, Taylor | 6 hr |
| Aug 8, 8:08 PM CDT | Severe Thunderstorm Warning | EAX | Atchison | 37 min |
| Aug 8, 8:23 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, Grundy, Harrison, Linn, Livingston, Mercer and 2 more | 37 min |
| Aug 8, 8:32 PM CDT | Severe Thunderstorm Warning | DMX | Decatur | 43 min |
| Aug 8, 9:17 PM CDT | Flash Flood Warning | TOP | Brown, Jackson | 4 hr |
| Aug 8, 9:27 PM CDT | Flash Flood Warning | TOP | Brown, Jackson | 4 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 9.7 hours before the alert went out and 153 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
- 341 J/kg
- Mixed-layer CIN
- -250 J/kg
- Mixed-layer LCL
- 900 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 8:13 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cedar, Clarke, Dallas and 28 more | 92 min |
| Aug 7, 11:46 PM CDT | Mesoscale Discussion | SPC | Fremont, Page, Taylor | 2 hr |
| Aug 8, 3:18 PM CDT | Mesoscale Discussion | SPC | Fremont, Page | 87 min |
| Aug 8, 3:28 PM CDT | Mesoscale Discussion | SPC | Lee | 62 min |
| Aug 7, 11:01 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Ellis, Gove, Graham, Greeley and 17 more | 119 min |
| Aug 8, 3:55 PM CDT | Mesoscale Discussion | SPC | Barber, Chase, Comanche, Dickinson, Ellsworth, Geary and 15 more | 3 hr |
| Aug 8, 3:50 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Lewis, Marion, Pike, Ralls | 4 hr |
Nearby
Tornado Watches in Missouri, 2007Tornado Watches in Iowa, 2007Tornado Watches in Nebraska, 2007Every tornado watch in 2007
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.