Alert archive / Iowa / Tornado Warnings in 2008
Tornado Warning 15, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at May 25, 2008, 5:21 PM CDT for Black Hawk County, Bremer County, Iowa. It was in force for 24 min. 22 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, 5:21 PM CDT (22:21 UTC)
- Expired
- May 25, 2008, 5:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
Counties Black Hawk County, IA, Bremer County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 25, 5:23 PM CDT | HAIL 1.75 | 3 S Denver, IA | |
| May 25, 5:23 PM CDT | HAIL 1.75 | 5 Wsw Denver, IA | |
| May 25, 5:25 PM CDT | TSTM WND DMG | 6 S Janesville, IA | NUMEROUS RECREATIONAL VEHICLES AT DEALERSHIP DESTROYED. LIKELY STRAIGHT LINE WIND DAMAGE. |
| May 25, 5:28 PM CDT | TORNADO | 4 Nnw Waterloo Airport, IA | TELEVISION VIEWER REPORTED LARGE TORNADO AT THE INTERSECTION OF COUNTY HIGHWAY C 57 AND HIGHWAY 218. |
| May 25, 5:28 PM CDT | TORNADO | Cedar Falls, IA | NEAR CEDAR WAPSIE ROAD AND 1 MILE NORTH OF LONE TREE ROAD. |
| May 25, 5:29 PM CDT | HAIL 1 | 4 Ne Waterloo Airport, IA | |
| May 25, 5:29 PM CDT | TORNADO | Cedar Falls, IA | TORNADO AT U.S. 57 AND U.S. 218 IN THE NORTHEAST PART OF CEDAR FALLS. |
| May 25, 5:31 PM CDT | HAIL 1.75 | Denver, IA | |
| May 25, 5:33 PM CDT | TSTM WND GST 76 | Waterloo Airport, IA | |
| May 25, 5:33 PM CDT | HAIL 2.75 | 1 Wnw Waterloo Airport, IA | |
| May 25, 5:33 PM CDT | TORNADO | 1 Wnw Waterloo Airport, IA | LONE TREE ROAD AND HIGHWAY 218 |
| May 25, 5:35 PM CDT | HAIL 0.88 | Waverly, IA | |
| May 25, 5:37 PM CDT | TSTM WND GST 93 | Waterloo Airport, IA | THE SUSTAINED WIND SPEED WAS 65 MPH. |
| May 25, 5:38 PM CDT | TORNADO | 6 Nnw Waterloo, IA | AT WAGNER ROAD AND DUNKERTON ROAD. POWER LINES DOWN ON UNION ROAD. |
| May 25, 5:39 PM CDT | HAIL 4 | 3 S Denver, IA | BASEBALL TO SOFTBALL SIZE HAIL REPORTED 7 MILES NORTH OF WATERLOO. |
| May 25, 5:44 PM CDT | TORNADO | 6 Ene Waterloo Airport, IA | |
| May 25, 5:45 PM CDT | TORNADO | Waterloo Airport, IA | BUILDINGS DAMAGED AND POWER LINES DOWN ON WAGNER ROAD...BETWEEN BIG ROCK ROAD AND DUNKERTON ROAD...JUST NORTH OF WATERLOO AIRPORT. |
| May 25, 5:48 PM CDT | TORNADO | 3 N Dunkerton, IA | DAMAGE TO A FARMHOUSE AND OUTBUILDINGS. TREES AND POWER LINES DOWN. TIME ESTIMATED. |
| May 25, 5:50 PM CDT | TORNADO | 3 Nnw Waterloo Airport, IA | HOMES DESTROYED. |
| May 25, 5:50 PM CDT | TORNADO | Dunkerton, IA | PUBLIC REPORTED TORNADO DESTROYED THEIR HOME. NO INJURIES. UNCONFIRMED REPORT. FROM KWWL TV. |
| May 25, 5:53 PM CDT | TORNADO | 3 N Dunkerton, IA | WEDGE TORNADO REPORTED ABOUT 3 MILES NORTH OF DUNKERTON. |
| May 25, 5:54 PM CDT | TORNADO | 2 Ne Waterloo, IA | 2 MILES NORTH OF DEWAR. |
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, 3:30 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 10.4 hours before the alert went out and 190 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
- 843 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 229 m²/s²
- 0-3 km storm-relative helicity
- 297 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 252222
TORDMX
IAC013-017-252245-
/O.NEW.KDMX.TO.W.0015.080525T2221Z-080525T2245Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
521 PM CDT SUN MAY 25 2008
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
* TORNADO WARNING FOR...
BLACK HAWK COUNTY IN NORTHEAST IOWA...
THIS INCLUDES THE CITY OF WATERLOO...
SOUTHERN BREMER COUNTY IN NORTHEAST IOWA...
* UNTIL 545 PM CDT.
* AT 517 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A LARGE AND EXTREMELY DANGEROUS TORNADO 8 MILES NORTHWEST OF CEDAR
FALLS...OR 13 MILES NORTHWEST OF WATERLOO...MOVING EAST AT 34 MPH.
* THE TORNADO WILL BE NEAR...
CEDAR FALLS AND JANESVILLE BY 530 PM CDT...
WATERLOO AIRPORT BY 535 PM CDT...
WATERLOO AND DENVER BY 540 PM CDT...
THIS TORNADO WARNING REPLACES THE ORIGINAL TORNADO WARNING FOR
BREMER AND BLACKHAWK COUNTIES.
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 1000 PM CDT SUNDAY EVENING
FOR IOWA.
LAT...LON 4244 9254 4276 9256 4279 9255 4282 9208
4236 9208
TIME...MOT...LOC 2221Z 269DEG 29KT 4258 9254
$$1 follow-up statement
000
WWUS53 KDMX 252232
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
531 PM CDT SUN MAY 25 2008
IAC013-017-252245-
/O.CON.KDMX.TO.W.0015.000000T0000Z-080525T2245Z/
BREMER IA-BLACK HAWK IA-
531 PM CDT SUN MAY 25 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR BLACK
HAWK AND SOUTHERN BREMER COUNTIES...
AT 526 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND STORM
SPOTTERS WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO. THIS
TORNADO WAS LOCATED NEAR CEDAR FALLS...OR 7 MILES NORTHWEST OF
WATERLOO...MOVING EAST AT 33 MPH.
THE TORNADO WILL BE NEAR...
EVANSDALE BY 540 PM CDT...
ELK RUN HEIGHTS...RAYMOND...6 MILES SOUTHWEST OF DUNKERTON AND 8
MILES NORTH OF GILBERTVILLE BY 545 PM CDT...
THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS
STORM IS CAPABLE OF PRODUCING STRONG TO VIOLENT TORNADOES. IF YOU ARE
IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY
AT 528 PM...SPOTTERS REPORTED A LARGE TORNADO AT THE INTERSECTION OF
557 AND HIGHWAY 218 IN BLACKHAWK COUNTY. THE TORNADO IS NOW IN THE
NORTHEAST SIDE OF CEDAR FALLS AND HEADED TO NORTH SIDE OF WATERLOO.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR IOWA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM CDT
SUNDAY EVENING FOR NORTHWESTERN IOWA.
LAT...LON 4244 9254 4276 9256 4279 9255 4282 9208
4236 9208
TIME...MOT...LOC 2231Z 282DEG 29KT 4255 9241
$$The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 3:38 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Wright | 52 min |
| May 25, 4:03 PM CDT | Tornado Warning | DMX | Cerro Gordo, Franklin | 42 min |
| May 25, 4:16 PM CDT | Severe Thunderstorm Warning | DMX | Franklin | 28 min |
| May 25, 4:17 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hardin | 43 min |
| May 25, 4:22 PM CDT | Tornado Warning | DMX | Butler, Franklin, Grundy, Hardin | 23 min |
| May 25, 4:46 PM CDT | Tornado Warning | DMX | Butler, Grundy | 44 min |
| May 25, 5:04 PM CDT | Tornado Warning | DMX | Black Hawk, Bremer | 56 min |
| May 25, 5:27 PM CDT | Tornado Warning | DMX | Butler | 14 min |
| May 25, 5:37 PM CDT | Tornado Warning | DMX | Black Hawk | 38 min |
| May 25, 5:47 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas | 43 min |
| May 25, 5:49 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 26 min |
| May 25, 6:12 PM CDT | Tornado Warning | DMX | Clarke, Lucas | 48 min |
| May 25, 6:54 PM CDT | Tornado Warning | DMX | Lucas | 36 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.