Alert archive / Iowa / Tornado Warnings in 2008
Tornado Warning 20, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Jun 7, 2008, 3:41 PM CDT for Chickasaw County, Floyd County, Iowa. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 7, 2008, 3:41 PM CDT (20:41 UTC)
- Expired
- Jun 7, 2008, 4:15 PM CDT
- In force
- 34 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
Counties Chickasaw County, IA, Floyd County, IA
The radar
The La Crosse radar (KARX), 141 km from the middle of the area, began a volume at 20:42 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 7, 12:17 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 8.7 hours before the alert went out and 206 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
- 131 J/kg
- Mixed-layer CIN
- -253 J/kg
- Mixed-layer LCL
- 1341 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 318 m²/s²
- 0-3 km storm-relative helicity
- 357 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS53 KARX 072041
TORARX
IAC037-067-072115-
/O.NEW.KARX.TO.W.0020.080607T2041Z-080607T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
341 PM CDT SAT JUN 7 2008
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* TORNADO WARNING FOR...
FLOYD COUNTY IN NORTH CENTRAL IOWA...
NORTHWESTERN CHICKASAW COUNTY IN NORTHEAST IOWA...
* UNTIL 415 PM CDT
* AT 337 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO NEAR COUNTY ROADS 147 AND T 34...OR 6 MILES WEST OF CHARLES
CITY...MOVING NORTHEAST AT 45 MPH.
* THE TORNADO WILL BE NEAR...
BUNNS WOODS COUNTY PARK AROUND 345 PM...
COLWELL COUNTY PARK AROUND 350 PM...
COLWELL AND COUNTY ROADS B 33 AND T 76 AROUND 355 PM...
DEERFIELD AROUND 400 PM...
TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS
PLEASE REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT OFFICE
AND TELL THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM SATURDAY EVENING FOR
NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND SOUTHWESTERN WISCONSIN.
LAT...LON 4321 9263 4321 9248 4306 9243 4295 9281
4310 9294
TIME...MOT...LOC 2041Z 237DEG 39KT 4309 9275
$$
BINAU3 follow-up statements
000
WWUS53 KARX 072047
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
347 PM CDT SAT JUN 7 2008
IAC037-067-072115-
/O.CON.KARX.TO.W.0020.000000T0000Z-080607T2115Z/
FLOYD IA-CHICKASAW IA-
347 PM CDT SAT JUN 7 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
NORTHWESTERN CHICKASAW AND FLOYD COUNTIES...
AT 342 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED
NEAR FLOYD CROSSING...OR ABOUT NEAR CHARLES CITY...MOVING NORTHEAST
AT 45 MPH.
* THE TORNADO WILL BE NEAR...
COLWELL AND COUNTY ROADS B 33 AND T 76 AROUND 355 PM...
DEERFIELD AROUND 400 PM...
PLEASE REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT OFFICE
AND TELL THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.
LAT...LON 4321 9263 4321 9248 4306 9243 4295 9281
4310 9294
TIME...MOT...LOC 2047Z 237DEG 39KT 4311 9267
$$
BINAU000
WWUS53 KARX 072101
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
401 PM CDT SAT JUN 7 2008
IAC037-067-072115-
/O.CON.KARX.TO.W.0020.000000T0000Z-080607T2115Z/
FLOYD IA-CHICKASAW IA-
401 PM CDT SAT JUN 7 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
NORTHWESTERN CHICKASAW AND NORTHEASTERN FLOYD COUNTIES...
AT 359 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED
NEAR COLWELL...OR ABOUT 9 MILES NORTHEAST OF CHARLES CITY...MOVING
NORTHEAST AT 35 MPH.
PLEASE REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT OFFICE
AND TELL THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.
LAT...LON 4321 9263 4321 9248 4306 9243 4304 9260
4320 9262
TIME...MOT...LOC 2101Z 238DEG 31KT 4317 9255
$$
BINAU000
WWUS53 KARX 072118
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
418 PM CDT SAT JUN 7 2008
IAC037-067-072128-
/O.EXP.KARX.TO.W.0020.000000T0000Z-080607T2115Z/
FLOYD IA-CHICKASAW IA-
418 PM CDT SAT JUN 7 2008
...THE TORNADO WARNING FOR NORTHWESTERN CHICKASAW AND NORTHEASTERN
FLOYD COUNTIES EXPIRED AT 415 PM CDT...
THE STORM WHICH PROMPTED THIS WARNING HAS MOVED OUT OF THE WARNED
AREA...AND STILL IS EXHIBITING WEAK ROTATION.
A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA.
LAT...LON 4321 9263 4321 9248 4306 9243 4304 9260
4320 9262
TIME...MOT...LOC 2101Z 238DEG 31KT 4317 9255
$$
BINAUThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 4:02 AM CDT | Flash Flood Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 44 hr |
| Jun 7, 12:52 PM CDT | Tornado Warning | ARX | Clayton | 23 min |
| Jun 7, 1:17 PM CDT | Tornado Warning | ARX | Allamakee, Clayton | 43 min |
| Jun 7, 2:49 PM CDT | Tornado Warning | ARX | Chickasaw | 26 min |
| Jun 7, 3:35 PM CDT | Tornado Warning | ARX | Chickasaw, Howard | 40 min |
| Jun 7, 4:35 PM CDT | Tornado Warning | ARX | Mitchell | 40 min |
| Jun 7, 5:22 PM CDT | Tornado Warning | ARX | Mitchell | 38 min |
| Jun 7, 6:00 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 30 min |
| Jun 7, 6:03 PM CDT | Flash Flood Warning | ARX | Mitchell | 6 hr |
| Jun 7, 6:18 PM CDT | Flash Flood Warning | ARX | Howard | 6 hr |
| Jun 7, 6:21 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 54 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.