Alert archive / Iowa / Tornado Warnings in 2007
Tornado Warning 19, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Jul 16, 2007, 7:48 PM CDT for Chickasaw County, Iowa. It was in force for 17 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
- Jul 16, 2007, 7:48 PM CDT (00:48 UTC)
- Expired
- Jul 16, 2007, 8:05 PM CDT
- In force
- 17 min
- Issued by
- NWS La Crosse, WI
- Area
- Counties, with a storm outline in the text
County Chickasaw County, IA
The radar
The La Crosse radar (KARX), 113 km from the middle of the area, began a volume at 00:50 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 |
|---|---|---|---|
| Jul 16, 2:07 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.8 hours before the alert went out and 212 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
- 405 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 1277 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 211 m²/s²
- 0-3 km storm-relative helicity
- 243 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KARX 170048 TORARX IAC037-170115- /O.NEW.KARX.TO.W.0019.070717T0048Z-070717T0115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 748 PM CDT MON JUL 16 2007 THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A * TORNADO WARNING FOR... EASTERN CHICKASAW COUNTY IN NORTHEAST IOWA... * UNTIL 815 PM CDT * AT 745 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO NEAR JACKSONVILLE...OR ABOUT 8 MILES NORTHEAST OF NEW HAMPTON...MOVING SOUTHEAST AT 20 MPH. THIS TORNADO WARNING UPGRADES THE PREVIOUS SEVERE THUNDERSTORM WARNING FOR CHICKASAW COUNTY. * THE TORNADO IS EXPECTED TO BE NEAR... JACKSONVILLE AND COUNTY ROADS V 56 AND B 33 AROUND 750 PM... LAWLER AROUND 800 PM... COUNTY ROADS B 54 AND V 56 AROUND 810 PM... TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR AND STAY AWAY FROM WINDOWS LAT...LON 4317 9212 4313 9224 4296 9221 4298 9208 $$ BOYNE
3 follow-up statements
000 WWUS53 KARX 170052 SVSARX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 752 PM CDT MON JUL 16 2007 IAC037-170115- /O.CON.KARX.TO.W.0019.000000T0000Z-070717T0115Z/ CHICKASAW IA- 752 PM CDT MON JUL 16 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR EAST CENTRAL CHICKASAW COUNTY... AT 750 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR COUNTY ROADS V 56 AND B 33...OR 9 MILES NORTHEAST OF NEW HAMPTON...MOVING SOUTHEAST AT 20 MPH. * THE TORNADO WILL BE NEAR... LAWLER AROUND 800 PM... COUNTY ROADS B 54 AND V 56 AROUND 810 PM... PLEASE REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT OFFICE AND TELL THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR AND STAY AWAY FROM WINDOWS LAT...LON 4317 9212 4313 9224 4296 9221 4298 9208 $$ BOYNE
000 WWUS53 KARX 170101 SVSARX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 801 PM CDT MON JUL 16 2007 IAC037-170115- /O.CON.KARX.TO.W.0019.000000T0000Z-070717T0115Z/ CHICKASAW IA- 801 PM CDT MON JUL 16 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR EAST CENTRAL CHICKASAW COUNTY... AT 758 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR LAWLER...OR 10 MILES EAST OF NEW HAMPTON...MOVING SOUTHEAST AT 15 MPH. * THE TORNADO WILL BE NEAR... COUNTY ROADS B 54 AND V 56 AROUND 810 PM... PLEASE REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT OFFICE AND TELL THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR AND STAY AWAY FROM WINDOWS LAT...LON 4317 9212 4313 9224 4296 9221 4298 9208 $$ BOYNE
000 WWUS53 KARX 170105 SVSARX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 805 PM CDT MON JUL 16 2007 IAC037-170115- /O.CAN.KARX.TO.W.0019.000000T0000Z-070717T0115Z/ CHICKASAW IA- 805 PM CDT MON JUL 16 2007 ...THE TORNADO WARNING FOR EAST CENTRAL CHICKASAW COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THIS WARNING HAS WEAKENED AND NO LONGER APPEARS CAPABLE OF PRODUCING SEVERE WEATHER. A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA UNTIL 11 PM CDT. LAT...LON 4317 9212 4313 9224 4296 9221 4298 9208 $$ BOYNE
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 7:04 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 26 min |
| Jul 16, 7:35 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Howard, Winneshiek | 25 min |
| Jul 16, 8:00 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 11 min |
| Jul 16, 8:44 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 29 min |
| Jul 17, 2:00 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 22 min |
| Jul 17, 2:41 PM CDT | Flash Flood Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 32 hr |
Nearby
Tornado Warnings in Iowa, 2007Every tornado warning in 2007Tornadoes in 2007
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.