Alert archive / Iowa / Tornado Warnings in 2017
Tornado Warning 7, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Mar 6, 2017, 8:22 PM CST for Appanoose County, Wayne County, Iowa. It was in force for 23 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 6, 2017, 8:22 PM CST (02:22 UTC)
- Expired
- Mar 6, 2017, 8:45 PM CST
- In force
- 23 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Appanoose County, IA, Wayne County, IA
The radar
The Des Moines radar (KDMX), 126 km from the middle of the area, began a volume at 02:22 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 6, 8:30 PM CST | TORNADO | 2 Se Centerville, IA | UNCONFIRMED TORNADO. REPORT OF DAMAGE TO INDUSTRIAL BUILDINGS. POWER POLES SNAPPED. SEMI TRUCKS BLOWN OVER. . |
| Mar 6, 8:32 PM CST | TSTM WND DMG | 1 Sse Centerville, IA | SEMI AND CAMPER FLIPPED OVER. POWER POLES SNAPPED OFF. . |
| Mar 6, 8:32 PM CST | TSTM WND DMG | 1 W Seymour, IA | POWER OUT 1W OF SEYMOUR. VERY STRONG WINDS AND HEAVY RAINFALL. . |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 6, 1:54 PM CST | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 2.4 hours before the alert went out and 233 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
- 39 J/kg
- Mixed-layer CIN
- -343 J/kg
- Mixed-layer LCL
- 1016 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 407 m²/s²
- 0-3 km storm-relative helicity
- 489 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
063
WFUS53 KDMX 070222
TORDMX
IAC007-185-070245-
/O.NEW.KDMX.TO.W.0007.170307T0222Z-170307T0245Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Des Moines IA
822 PM CST MON MAR 6 2017
The National Weather Service in Des Moines has issued a
* Tornado Warning for...
Southeastern Wayne County in south central Iowa...
Appanoose County in south central Iowa...
* Until 845 PM CST.
* At 822 PM CST, a severe thunderstorm capable of producing a tornado
was located 11 miles west of Centerville, moving northeast at 70
mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Centerville around 835 PM CST.
Other locations impacted by this tornadic thunderstorm include
Rathbun, Mystic, Honey Creek State Park, Cincinnati, Promise City,
Exline, Sharon Bluffs State Park, Seymour, Numa and Plano.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 4071 9321 4090 9301 4090 9288 4059 9265
4058 9313
TIME...MOT...LOC 0222Z 239DEG 60KT 4070 9309
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Small1 follow-up statement
977
WWUS53 KDMX 070231 RRA
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
831 PM CST MON MAR 6 2017
IAC185-070241-
/O.CAN.KDMX.TO.W.0007.000000T0000Z-170307T0245Z/
Wayne IA-
831 PM CST MON MAR 6 2017
...THE TORNADO WARNING FOR SOUTHEASTERN WAYNE COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A tornado watch remains in effect until 1000 PM CST for south central
Iowa.
LAT...LON 4073 9305 4085 9298 4090 9288 4059 9265
4058 9292
TIME...MOT...LOC 0231Z 238DEG 55KT 4068 9290
$$
IAC007-070245-
/O.CON.KDMX.TO.W.0007.000000T0000Z-170307T0245Z/
Appanoose IA-
831 PM CST MON MAR 6 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CST FOR CENTRAL
APPANOOSE COUNTY...
At 831 PM CST, a severe thunderstorm capable of producing a tornado
was located near Centerville, moving northeast at 65 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
central Appanoose County, including the following locations: Rathbun,
Mystic, Honey Creek State Park, Cincinnati, Exline, Sharon Bluffs
State Park, Numa and Centerville Municipal Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 4073 9305 4085 9298 4090 9288 4059 9265
4058 9292
TIME...MOT...LOC 0231Z 238DEG 55KT 4068 9290
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
SmallThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 6:03 PM CST | Severe Thunderstorm Warning | DMX | Adair, Boone, Cass, Dallas, Greene, Guthrie and 1 more | 42 min |
| Mar 6, 6:09 PM CST | Severe Thunderstorm Warning | DMX | Franklin, Hamilton, Hardin, Wright | 51 min |
| Mar 6, 6:30 PM CST | Severe Thunderstorm Warning | DMX | Adair, Boone, Dallas, Madison, Polk, Story and 1 more | 45 min |
| Mar 6, 6:31 PM CST | Severe Thunderstorm Warning | DMX | Cerro Gordo | 29 min |
| Mar 6, 6:39 PM CST | Severe Thunderstorm Warning | DMX | Clarke, Union | 51 min |
| Mar 6, 7:07 PM CST | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Story | 53 min |
| Mar 6, 7:07 PM CST | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hardin, Marshall | 37 min |
| Mar 6, 7:12 PM CST | Severe Thunderstorm Warning | DMX | Marion, Warren | 48 min |
| Mar 6, 7:21 PM CST | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Monroe | 54 min |
| Mar 6, 7:21 PM CST | Tornado Warning | DMX | Marion, Warren | 24 min |
| Mar 6, 7:31 PM CST | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 59 min |
| Mar 6, 7:32 PM CST | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Grundy | 58 min |
| Mar 6, 7:40 PM CST | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Poweshiek, Tama | 54 min |
| Mar 6, 7:40 PM CST | Tornado Warning | DMX | Jasper, Mahaska, Marion | 22 min |
| Mar 6, 7:43 PM CST | Tornado Warning | DMX | Jasper, Poweshiek | 32 min |
| Mar 6, 7:51 PM CST | Severe Thunderstorm Warning | DMX | Mahaska, Marion | 54 min |
| Mar 6, 7:56 PM CST | Tornado Warning | DMX | Wayne | 34 min |
| Mar 6, 8:08 PM CST | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 35 min |
| Mar 6, 8:38 PM CST | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Monroe, Wapello | 41 min |
| Mar 6, 8:40 PM CST | Tornado Warning | DMX | Appanoose, Davis, Monroe, Wapello | 35 min |
| Mar 7, 4:00 AM CST | Red Flag Warning | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 14 hr |
| Mar 7, 10:40 AM CST | River Flood Warning | DMX | Black Hawk | 4 days |
Nearby
Tornado Warnings in Iowa, 2017Every tornado warning in 2017Tornadoes in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.