Alert archive / Iowa / Tornado Warnings in 2008
Tornado Warning 21, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at May 25, 2008, 8:16 PM CDT for 4 counties in Iowa. It was in force for 44 min. 6 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
- May 25, 2008, 8:16 PM CDT (01:16 UTC)
- Expired
- May 25, 2008, 9:00 PM CDT
- In force
- 44 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
Counties Grundy County, IA, Hardin County, IA, Marshall County, IA, Story County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 25, 8:23 PM CDT | HAIL 0.88 | 3 Sw New Providence, IA | PROVIDENCE REPORTS NICKEL SIZED HAIL. |
| May 25, 8:25 PM CDT | TSTM WND DMG | 2 W New Providence, IA | ROOF DAMAGE DUE TO SEVERE WINDS |
| May 25, 8:26 PM CDT | TSTM WND DMG | 5 Nne Mccallsburg, IA | DAMAGE TO A BUILDING. |
| May 25, 8:27 PM CDT | HAIL 0.25 | 4 Ssw New Providence, IA | SW NORHT PROVIDENCE REPORTS QUATER SIZED HAIL AND INTERSECTION OF F67 AND D65. |
| May 25, 8:30 PM CDT | HAIL 1.75 | 4 Sw Hubbard, IA | |
| May 25, 8:34 PM CDT | HAIL 1.75 | 2 S New Providence, IA |
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 |
|---|---|---|---|
| May 25, 7:54 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 1.3 hours before the alert went out and 225 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
- 1867 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 1008 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 6.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KDMX 260116 TORDMX IAC075-083-127-169-260200- /O.NEW.KDMX.TO.W.0021.080526T0116Z-080526T0200Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DES MOINES IA 816 PM CDT SUN MAY 25 2008 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * TORNADO WARNING FOR... SOUTHWESTERN GRUNDY COUNTY IN CENTRAL IOWA... SOUTHERN HARDIN COUNTY IN CENTRAL IOWA... NORTHERN MARSHALL COUNTY IN CENTRAL IOWA... NORTHEASTERN STORY COUNTY IN CENTRAL IOWA... * UNTIL 900 PM CDT. * AT 814 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES SOUTHWEST OF HUBBARD...OR 46 MILES SOUTHEAST OF FORT DODGE...MOVING EAST AT 35 MPH. * THE TORNADO WILL BE NEAR... HUBBARD BY 820 PM CDT... NEW PROVIDENCE BY 830 PM CDT... UNION BY 840 PM CDT... WHITTEN AND LISCOMB BY 845 PM CDT... CONRAD BY 855 PM CDT... BEAMAN BY 900 PM CDT... THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING THAT WAS IN EFFECT FOR THE SAME AREA. GO TO A BASEMENT OR SMALL INTERIOR ROOM ON THE LOWEST FLOOR 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. REPORT TORNADOES...WIND IN EXCESS OF 50 MPH...HAIL LARGER THAN ONE HALF INCH...OR STORM DAMAGE BY CALLING LOCAL LAW ENFORCEMENT AND ASKING THEM TO RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE. LAT...LON 4243 9280 4219 9279 4217 9343 4233 9346 TIME...MOT...LOC 0116Z 267DEG 30KT 4222 9334 $$ VACHALEK
3 follow-up statements
000
WWUS53 KDMX 260137
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
835 PM CDT SUN MAY 25 2008
IAC169-260145-
/O.CAN.KDMX.TO.W.0021.000000T0000Z-080526T0200Z/
STORY IA-
835 PM CDT SUN MAY 25 2008
...THE TORNADO WARNING FOR NORTHEASTERN STORY COUNTY IS CANCELLED...
AT 830 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE EITHER WEAKENED OR
MOVED OUT OF THE AREA...AND NO LONGER POSE AN IMMEDIATE THREAT TO
LIFE OR PROPERTY. THEREFORE...THE TORNADO WARNING HAS BEEN CANCELLED.
REPORT TORNADOES...WIND IN EXCESS OF 50 MPH...HAIL LARGER THAN ONE
HALF INCH...OR STORM DAMAGE BY CALLING LOCAL LAW ENFORCEMENT AND
ASKING THEM TO RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE.
LAT...LON 4218 9324 4221 9324 4221 9344 4233 9346
4243 9280 4219 9279
TIME...MOT...LOC 0135Z 267DEG 37KT 4223 9309
$$
IAC075-083-127-260200-
/O.CON.KDMX.TO.W.0021.000000T0000Z-080526T0200Z/
HARDIN IA-GRUNDY IA-MARSHALL IA-
835 PM CDT SUN MAY 25 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR NORTHERN
MARSHALL...SOUTHWESTERN GRUNDY AND SOUTHERN HARDIN COUNTIES...
AT 830 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR NEW PROVIDENCE...
OR 45 MILES SOUTHWEST OF WATERLOO...MOVING EAST AT 43 MPH.
THE TORNADO WILL BE NEAR...
WHITTEN AND LISCOMB BY 840 PM CDT...
CONRAD BY 850 PM CDT...
BEAMAN BY 855 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.
THEIS STORM HAS PRODUCED LARGE HAIL.
REPORT TORNADOES...WIND IN EXCESS OF 50 MPH...HAIL LARGER THAN ONE
HALF INCH...OR STORM DAMAGE BY CALLING LOCAL LAW ENFORCEMENT AND
ASKING THEM TO RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE.
LAT...LON 4218 9324 4221 9324 4221 9344 4233 9346
4243 9280 4219 9279
TIME...MOT...LOC 0135Z 267DEG 37KT 4223 9309
$$
VACHALEK000
WWUS53 KDMX 260148
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
848 PM CDT SUN MAY 25 2008
IAC075-083-127-260200-
/O.CON.KDMX.TO.W.0021.000000T0000Z-080526T0200Z/
HARDIN IA-GRUNDY IA-MARSHALL IA-
848 PM CDT SUN MAY 25 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHEASTERN MARSHALL...SOUTHWESTERN GRUNDY AND SOUTHEASTERN HARDIN
COUNTIES...
AT 843 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR WHITTEN...OR 37
MILES SOUTHWEST OF WATERLOO...MOVING EAST AT 43 MPH.
THE TORNADO WILL BE NEAR...
BEAMAN BY 855 PM CDT...
SEEK SHELTER IN A BASEMENT...OR IN AN INTERIOR ROOM. STAY AWAY FROM
WINDOWS. IF YOU ARE IN A CAR OR OUTSIDE...SEEK SHELTER IN A
REINFORCED BUILDING.
DELAYED REPORTS INDICATE STRUCTURAL DAMAGE AND HAIL TO GOLFBALL SIZE
WITH THIS STORM...IN THE HUBBARD AND NEW PROVIDENCE AREAS.
REPORT TORNADOES...WIND IN EXCESS OF 50 MPH...HAIL LARGER THAN ONE
HALF INCH...OR STORM DAMAGE BY CALLING LOCAL LAW ENFORCEMENT AND
ASKING THEM TO RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE.
LAT...LON 4219 9292 4219 9293 4218 9302 4219 9307
4221 9308 4236 9323 4243 9280 4236 9280
4219 9279
TIME...MOT...LOC 0148Z 267DEG 37KT 4224 9291
$$
VACHALEK000
WWUS53 KDMX 260201
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
900 PM CDT SUN MAY 25 2008
IAC075-083-127-260210-
/O.EXP.KDMX.TO.W.0021.000000T0000Z-080526T0200Z/
HARDIN IA-GRUNDY IA-MARSHALL IA-
900 PM CDT SUN MAY 25 2008
...THE TORNADO WARNING FOR NORTHEASTERN MARSHALL...SOUTHWESTERN
GRUNDY AND SOUTHEASTERN HARDIN COUNTIES HAS EXPIRED...
...A NEW SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR PORTIONS OF
GRUNDY AND TAMA COUNTIES UNTIL 945 PM...
AT 855 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS NO LONGER POSE A THREAT OF TORNADOES. THEREFORE...THE
TORNADO WARNING WILL BE ALLOWED TO EXPIRE.
REPORT TORNADOES...WIND IN EXCESS OF 50 MPH...HAIL LARGER THAN ONE
HALF INCH...OR STORM DAMAGE BY CALLING LOCAL LAW ENFORCEMENT AND
ASKING THEM TO RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE.
LAT...LON 4219 9292 4219 9293 4218 9302 4219 9307
4221 9308 4236 9323 4243 9280 4236 9280
4219 9279
TIME...MOT...LOC 0200Z 267DEG 37KT 4225 9274
$$
VACHALEKThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 7:14 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 46 min |
| May 25, 7:15 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Greene, Guthrie | 45 min |
| May 25, 7:19 PM CDT | Severe Thunderstorm Warning | DMX | Audubon | 26 min |
| May 25, 7:38 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Story | 52 min |
| May 25, 7:44 PM CDT | Tornado Warning | DMX | Guthrie | 46 min |
| May 25, 7:50 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer | 40 min |
| May 25, 7:57 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin | 63 min |
| May 25, 8:02 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas | 43 min |
| May 25, 8:05 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 40 min |
| May 25, 8:11 PM CDT | Severe Thunderstorm Warning | DMX | Dallas | 19 min |
| May 25, 8:27 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Butler, Grundy | 33 min |
| May 25, 8:29 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Taylor, Union | 46 min |
| May 25, 8:44 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor | 46 min |
| May 25, 8:46 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Story | 44 min |
| May 25, 8:54 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Jasper, Madison, Polk, Warren | 51 min |
| May 25, 8:58 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Tama | 47 min |
| May 25, 9:01 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Cass, Guthrie | 44 min |
| May 25, 9:09 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Clarke, Madison, Union, Warren | 51 min |
| May 25, 9:21 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Madison, Polk | 39 min |
| May 25, 9:25 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene, Guthrie, Polk | 50 min |
| May 25, 9:29 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 46 min |
| May 25, 9:31 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Ringgold | 44 min |
| May 25, 9:31 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 44 min |
| May 25, 9:42 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Warren | 48 min |
| May 25, 9:59 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Jasper, Polk, Story | 46 min |
| May 25, 10:03 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion | 42 min |
| May 25, 10:12 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 48 min |
| May 25, 10:15 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 45 min |
| May 25, 10:20 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Hamilton, Hardin, Story, Webster | 40 min |
| May 25, 10:21 PM CDT | Flash Flood Warning | DMX | Tama | 113 min |
| May 25, 10:35 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Poweshiek | 40 min |
| May 25, 10:43 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Story | 36 min |
| May 25, 10:48 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis | 42 min |
| May 25, 10:52 PM CDT | Tornado Warning | DMX | Poweshiek | 23 min |
| May 25, 11:00 PM CDT | Severe Thunderstorm Warning | DMX | Monroe, Wapello | 45 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.