Alert archive / Iowa / Tornado Warnings in 2008
Tornado Warning 8, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Apr 10, 2008, 6:27 PM CDT for Poweshiek County, Tama County, Iowa. It was in force for 48 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
- Apr 10, 2008, 6:27 PM CDT (23:27 UTC)
- Expired
- Apr 10, 2008, 7:15 PM CDT
- In force
- 48 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
Counties Poweshiek County, IA, Tama County, IA
The radar
The Des Moines radar (KDMX), 109 km from the middle of the area, began a volume at 23:28 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 |
|---|---|---|---|
| Apr 10, 6:36 PM CDT | TSTM WND DMG | 5 E Brooklyn, IA | FARMSTEAD HAD 2 BARNS BLOWN DOWN. FARMHOUSE HAD PORTIONS OF ROOF PEELED OFF...SIDING TORN OFF AND WINDOWS BLOWN OUT...DELAYED REPORT |
| Apr 10, 6:36 PM CDT | TORNADO | 5 E Brooklyn, IA | DAMAGE TO HOME AND OUTBUILDINGS. TREES UPROOTED. ROAD SIGNS PULLED OUT OF GROUND. DAMAGE ALONG TWO MILE PATH. |
| Apr 10, 6:40 PM CDT | TORNADO | 5 E Brooklyn, IA | FARMSTEAD HAD 2 BARNS BLOWN DOWN. FARMHOUSE HAD PORTIONS OF ROOF PEELED OFF...SIDING TORN OFF AND WINDOWS BLOWN OUT...DELAYED REPORT |
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 |
|---|---|---|---|
| Apr 10, 2:28 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.5 hours before the alert went out and 160 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 475 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 305 m²/s²
- 0-3 km storm-relative helicity
- 419 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KDMX 102327 TORDMX IAC157-171-110015- /O.NEW.KDMX.TO.W.0008.080410T2327Z-080411T0015Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DES MOINES IA 627 PM CDT THU APR 10 2008 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * TORNADO WARNING FOR... NORTHEASTERN POWESHIEK COUNTY IN CENTRAL IOWA... SOUTHEASTERN TAMA COUNTY IN CENTRAL IOWA... * UNTIL 715 PM CDT. * AT 623 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES SOUTH OF BROOKLYN...OR 19 MILES NORTHWEST OF SIGOURNEY...MOVING NORTH AT 52 MPH. * THE TORNADO WILL BE NEAR... BROOKLYN BY 635 PM CDT... THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 193 AND 204. IN ADDITION TO THE TORNADO...THIS STORM MAY ALSO EXPECTED TO PRODUCE QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. THIS IS A HAZARDOUS SITUATION. SEEK SHELTER IN A BASEMENT...OR IN AN INTERIOR ROOM. STAY AWAY FROM WINDOWS. IF YOU ARE OUTSIDE OR IN A CAR...SEEK SHELTER IN A REINFORCED BUILDING. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING FOR SOUTHERN IOWA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM CDT THURSDAY EVENING FOR SOUTHWESTERN IOWA. LAT...LON 4166 9253 4209 9243 4206 9228 4159 9229 TIME...MOT...LOC 2327Z 189DEG 45KT 4162 9240 $$ KINNEY
4 follow-up statements
000
WWUS53 KDMX 102336
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
636 PM CDT THU APR 10 2008
IAC157-171-110015-
/O.CON.KDMX.TO.W.0008.000000T0000Z-080411T0015Z/
TAMA IA-POWESHIEK IA-
636 PM CDT THU APR 10 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
NORTHEASTERN POWESHIEK AND SOUTHEASTERN TAMA COUNTIES...
AT 632 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED 6 MILES SOUTHEAST OF
BROOKLYN...OR 17 MILES SOUTHWEST OF MARENGO...MOVING NORTH AT 51 MPH.
THE TORNADO WILL BE NEAR...
8 MILES EAST OF CHELSEA BY 650 PM CDT...
7 MILES EAST OF ELBERON BY 655 PM CDT...
THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 202 AND 204.
SEEK SHELTER IN A BASEMENT...OR IN AN INTERIOR ROOM. STAY AWAY FROM
WINDOWS. IF YOU ARE IN A CAR OR OUTSIDE...SEEK SHELTER IN A
REINFORCED BUILDING.
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
DESTRUCTIVE STRAIGHT LINE WINDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING
FOR SOUTHERN IOWA.
A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM CDT
THURSDAY EVENING FOR SOUTHWESTERN IOWA.
LAT...LON 4173 9251 4175 9250 4178 9250 4186 9248
4187 9247 4189 9248 4209 9243 4206 9229
4166 9229
TIME...MOT...LOC 2336Z 201DEG 45KT 4172 9232
$$
KINNEY000
WWUS53 KDMX 102347
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
647 PM CDT THU APR 10 2008
IAC157-171-110015-
/O.CON.KDMX.TO.W.0008.000000T0000Z-080411T0015Z/
TAMA IA-POWESHIEK IA-
647 PM CDT THU APR 10 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
NORTHEASTERN POWESHIEK AND SOUTHEASTERN TAMA COUNTIES...
AT 645 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR HARTWICK...OR 13
MILES WEST OF MARENGO...MOVING NORTH AT 45 MPH.
THE TORNADO WILL BE NEAR...
6 MILES EAST OF CHELSEA BY 655 PM CDT...
ELBERON AND 7 MILES EAST OF VINING BY 700 PM CDT...
SEEK SHELTER IN A BASEMENT...OR IN AN INTERIOR ROOM. STAY AWAY FROM
WINDOWS. IF YOU ARE IN A CAR OR OUTSIDE...SEEK SHELTER IN A
REINFORCED BUILDING.
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
DESTRUCTIVE STRAIGHT LINE WINDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING
FOR SOUTHERN IOWA.
A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM CDT
THURSDAY EVENING FOR SOUTHWESTERN IOWA.
LAT...LON 4181 9247 4208 9235 4206 9229 4178 9229
4176 9230
TIME...MOT...LOC 2347Z 198DEG 39KT 4182 9231
$$
KINNEY000
WWUS53 KDMX 110003
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
703 PM CDT THU APR 10 2008
IAC157-110013-
/O.CAN.KDMX.TO.W.0008.000000T0000Z-080411T0015Z/
POWESHIEK IA-
703 PM CDT THU APR 10 2008
...THE TORNADO WARNING FOR NORTHEASTERN POWESHIEK COUNTY IS
CANCELLED...
AT 658 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE EITHER WEAKENED OR
MOVED OUT OF THE AREA...AND NO LONGER POSE AN IMMEDIATE THREAT TO
LIFE OR PROPERTY. THEREFORE...THE TORNADO WARNING HAS BEEN CANCELLED.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING
FOR SOUTHERN IOWA.
A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM CDT
THURSDAY EVENING FOR SOUTHWESTERN IOWA.
LAT...LON 4195 9241 4201 9238 4201 9237 4208 9235
4207 9231 4206 9229 4193 9230
TIME...MOT...LOC 0003Z 198DEG 39KT 4202 9231
$$
IAC171-110015-
/O.CON.KDMX.TO.W.0008.000000T0000Z-080411T0015Z/
TAMA IA-
703 PM CDT THU APR 10 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR EAST
CENTRAL TAMA COUNTY...
AT 658 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR ELBERON...OR 18
MILES NORTHWEST OF MARENGO...MOVING NORTH AT 45 MPH.
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
DESTRUCTIVE STRAIGHT LINE WINDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING
FOR SOUTHERN IOWA.
A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM CDT
THURSDAY EVENING FOR SOUTHWESTERN IOWA.
LAT...LON 4195 9241 4201 9238 4201 9237 4208 9235
4207 9231 4206 9229 4193 9230
TIME...MOT...LOC 0003Z 198DEG 39KT 4202 9231
$$
KINNEY000
WWUS53 KDMX 110012
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
712 PM CDT THU APR 10 2008
IAC171-110022-
/O.EXP.KDMX.TO.W.0008.000000T0000Z-080411T0015Z/
TAMA IA-
712 PM CDT THU APR 10 2008
...THE TORNADO WARNING FOR EAST CENTRAL TAMA COUNTY WILL EXPIRE AT
715 PM CDT...
AT 710 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING
FOR SOUTHERN IOWA.
A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM CDT
THURSDAY EVENING FOR SOUTHWESTERN IOWA.
LAT...LON 4195 9241 4201 9238 4201 9237 4208 9235
4207 9231 4206 9229 4193 9230
TIME...MOT...LOC 0012Z 198DEG 39KT 4211 9227
$$
KINNEYThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 9:53 PM CDT | River Flood Warning | DMX | Lucas | 60 hr |
| Apr 10, 4:17 AM CDT | Wind Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 17 hr |
| Apr 10, 4:24 PM CDT | Tornado Warning | DMX | Clarke, Decatur, Lucas, Wayne | 51 min |
| Apr 10, 4:49 PM CDT | Tornado Warning | DMX | Clarke, Lucas, Warren | 26 min |
| Apr 10, 4:52 PM CDT | Tornado Warning | DMX | Appanoose, Wayne | 23 min |
| Apr 10, 5:11 PM CDT | Tornado Warning | DMX | Appanoose, Mahaska, Marion, Monroe, Wapello | 34 min |
| Apr 10, 5:25 PM CDT | Tornado Warning | DMX | Mahaska, Marion | 20 min |
| Apr 10, 5:42 PM CDT | Tornado Warning | DMX | Mahaska, Poweshiek | 48 min |
| Apr 10, 6:11 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Monroe | 35 min |
Nearby
Tornado Warnings in Iowa, 2008Every tornado warning in 2008Tornadoes in 2008
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.