Alert archive / Iowa / Tornado Warnings in 2009
Tornado Warning 13, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Jun 18, 2009, 9:52 PM CDT for Allamakee County, Iowa; Crawford County, Wisconsin. It was in force for 38 min. 1 report 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
- Jun 18, 2009, 9:52 PM CDT (02:52 UTC)
- Expired
- Jun 18, 2009, 10:30 PM CDT
- In force
- 38 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
Counties Allamakee County, IA, Crawford County, WI
The radar
The La Crosse radar (KARX), 84 km from the middle of the area, began a volume at 02:56 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 |
|---|---|---|---|
| Jun 18, 9:56 PM CDT | TSTM WND DMG | 1 Sw Harpers Ferry, IA | 4 INCH TREE BRANCH BROKEN...ALSO RAIN TOTALED JUST UNDER 3 INCHES. |
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 |
|---|---|---|---|
| Jun 18, 8:58 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 2.9 hours before the alert went out and 169 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
- 4835 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 998 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 376 m²/s²
- 0-3 km storm-relative helicity
- 430 m²/s²
- Significant tornado parameter
- 7.1
- Supercell composite
- 59.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS53 KARX 190252
TORARX
IAC005-WIC023-190330-
/O.NEW.KARX.TO.W.0013.090619T0252Z-090619T0330Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
952 PM CDT THU JUN 18 2009
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN ALLAMAKEE COUNTY IN NORTHEAST IOWA...
SOUTHWESTERN CRAWFORD COUNTY IN SOUTHWEST WISCONSIN...
* UNTIL 1030 PM CDT
* AT 952 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM WITH A DEVELOPING TORNADO NEAR SIXTEEN...OR 12
MILES NORTHWEST OF PRAIRIE DU CHIEN...MOVING EAST AT 30 MPH.
* THE TORNADO WILL BE NEAR...
YELLOW RIVER STATE FOREST AROUND 1000 PM...
HARPERS FERRY AND EFFIGY MOUNDS AROUND 1010 PM...
PRAIRIE DU CHIEN AND HIGHWAY 35 AND COUNTY D AROUND 1015 PM...
LIMERY RIDGE AROUND 1020 PM...
HAZEN CORNERS AND IRISH RIDGE AROUND 1025 PM...
KICKAPOO INDIAN CAVERNS AND WAUZEKA AROUND 1030 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS
A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 AM FRIDAY MORNING FOR
NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND SOUTHWESTERN WISCONSIN.
&&
LAT...LON 4300 9115 4303 9116 4308 9116 4308 9142
4321 9146 4322 9088 4307 9089 4306 9095
4303 9097 4299 9107
TIME...MOT...LOC 0252Z 272DEG 25KT 4312 9135
$$
RIECK4 follow-up statements
000
WWUS53 KARX 190258
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
958 PM CDT THU JUN 18 2009
IAC005-WIC023-190330-
/O.CON.KARX.TO.W.0013.000000T0000Z-090619T0330Z/
ALLAMAKEE IA-CRAWFORD WI-
958 PM CDT THU JUN 18 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
SOUTHWESTERN CRAWFORD AND SOUTHEASTERN ALLAMAKEE COUNTIES...
AT 957 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR SIXTEEN...OR 9
MILES NORTHWEST OF PRAIRIE DU CHIEN...MOVING EAST AT 30 MPH.
* THE TORNADO WILL BE NEAR...
PRAIRIE DU CHIEN AROUND 1015 PM...
IRISH RIDGE AND LIMERY RIDGE AROUND 1020 PM...
BRIDGEPORT AROUND 1025 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 AM FRIDAY MORNING FOR
NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND SOUTHWESTERN WISCONSIN.
&&
LAT...LON 4300 9115 4303 9116 4308 9116 4308 9142
4321 9146 4322 9088 4307 9089 4306 9095
4303 9097 4299 9107
TIME...MOT...LOC 0258Z 282DEG 27KT 4309 9129
$$
RIECK000
WWUS53 KARX 190304
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1004 PM CDT THU JUN 18 2009
IAC005-WIC023-190330-
/O.CON.KARX.TO.W.0013.000000T0000Z-090619T0330Z/
ALLAMAKEE IA-CRAWFORD WI-
1004 PM CDT THU JUN 18 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
SOUTHWESTERN CRAWFORD AND SOUTHEASTERN ALLAMAKEE COUNTIES...
AT 1001 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR EFFIGY MOUNDS...OR
6 MILES NORTHWEST OF PRAIRIE DU CHIEN...MOVING EAST AT 30 MPH.
* THE TORNADO WILL BE NEAR...
LIMERY RIDGE AND HAZEN CORNERS AROUND 1015 PM...
IRISH RIDGE AND BRIDGEPORT AROUND 1020 PM...
KICKAPOO INDIAN CAVERNS AND CROWLEY RIDGE AROUND 1025 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 AM FRIDAY MORNING FOR
NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND SOUTHWESTERN WISCONSIN.
&&
LAT...LON 4300 9115 4303 9116 4308 9116 4308 9142
4321 9146 4322 9088 4307 9089 4306 9095
4303 9097 4299 9107
TIME...MOT...LOC 0304Z 280DEG 28KT 4308 9120
$$
RIECK000
WWUS53 KARX 190318
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1018 PM CDT THU JUN 18 2009
IAC005-190328-
/O.CAN.KARX.TO.W.0013.000000T0000Z-090619T0330Z/
ALLAMAKEE IA-
1018 PM CDT THU JUN 18 2009
...THE TORNADO WARNING FOR SOUTHEASTERN ALLAMAKEE COUNTY IS
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 AM CDT FRIDAY MORNING FOR
NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND SOUTHWESTERN WISCONSIN.
A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 200 AM CDT
FRIDAY MORNING FOR NORTH CENTRAL WISCONSIN.
LAT...LON 4300 9115 4308 9116 4310 9117 4314 9117
4320 9112 4322 9110 4322 9088 4307 9089
4306 9095 4304 9097 4299 9107
TIME...MOT...LOC 0318Z 280DEG 28KT 4306 9105
$$
WIC023-190330-
/O.CON.KARX.TO.W.0013.000000T0000Z-090619T0330Z/
CRAWFORD WI-
1018 PM CDT THU JUN 18 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
SOUTHWESTERN CRAWFORD COUNTY...
AT 1015 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR IRISH RIDGE...OR
NEAR PRAIRIE DU CHIEN...MOVING EAST AT 30 MPH.
* THE TORNADO WILL BE NEAR...
KICKAPOO INDIAN CAVERNS AND CROWLEY RIDGE AROUND 1025 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 AM FRIDAY MORNING FOR
NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND SOUTHWESTERN WISCONSIN.
&&
LAT...LON 4300 9115 4308 9116 4310 9117 4314 9117
4320 9112 4322 9110 4322 9088 4307 9089
4306 9095 4304 9097 4299 9107
TIME...MOT...LOC 0318Z 280DEG 28KT 4306 9105
$$
RIECK000
WWUS53 KARX 190331
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1031 PM CDT THU JUN 18 2009
WIC023-190341-
/O.EXP.KARX.TO.W.0013.000000T0000Z-090619T0330Z/
CRAWFORD WI-
1031 PM CDT THU JUN 18 2009
...THE TORNADO WARNING FOR SOUTHWESTERN CRAWFORD COUNTY EXPIRED AT
1030 PM CDT...
THE STORM WHICH PROMPTED THIS WARNING REMAINS SEVERE. A NEW WARNING
HAS BEEN ISSUED.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 AM CDT FRIDAY MORNING FOR
NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND SOUTHWESTERN WISCONSIN.
LAT...LON 4300 9115 4308 9116 4310 9117 4314 9117
4320 9112 4322 9110 4322 9088 4307 9089
4306 9095 4304 9097 4299 9107
TIME...MOT...LOC 0318Z 280DEG 28KT 4306 9105
$$
RIECKThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 9:30 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 45 min |
| Jun 18, 9:56 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 42 min |
| Jun 18, 11:20 PM CDT | Areal Flood Advisory | ARX | Allamakee | 6 hr |
| Jun 18, 11:28 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Winneshiek | 32 min |
| Jun 18, 11:47 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton | 28 min |
| Jun 18, 11:52 PM CDT | Flash Flood Warning | ARX | Allamakee, Clayton | 6 hr |
| Jun 19, 3:45 AM CDT | Dense Fog Advisory | ARX | Chickasaw, Floyd, Howard, Mitchell | 5 hr |
| Jun 18, 10:00 PM CDT | Severe Thunderstorm Warning | ARX | Juneau, Monroe | 45 min |
| Jun 18, 10:30 PM CDT | Severe Thunderstorm Warning | ARX | Crawford, Grant | 45 min |
| Jun 18, 10:36 PM CDT | Severe Thunderstorm Warning | ARX | Monroe, Vernon | 24 min |
| Jun 18, 11:25 PM CDT | Severe Thunderstorm Warning | ARX | Grant | 35 min |
| Jun 19, 12:14 AM CDT | Severe Thunderstorm Warning | ARX | Grant | 25 min |
| Jun 19, 3:11 AM CDT | Flash Flood Warning | ARX | Grant | 3 hr |
| Jun 19, 6:58 AM CDT | Severe Thunderstorm Warning | ARX | Taylor | 47 min |
| Jun 19, 8:28 AM CDT | Severe Thunderstorm Warning | ARX | Grant | 47 min |
| Jun 19, 2:54 PM CDT | Severe Thunderstorm Warning | ARX | Adams | 36 min |
Nearby
Tornado Warnings in Iowa, 2009Tornado Warnings in Wisconsin, 2009Every tornado warning in 2009Tornadoes in 2009
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.