Alert archive / Iowa / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 21, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Jun 17, 2009, 8:29 PM CDT for Howard County, Winneshiek County, Iowa; Fillmore County, Minnesota. It was in force for 46 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 17, 2009, 8:29 PM CDT (01:29 UTC)
- Expired
- Jun 17, 2009, 9:15 PM CDT
- In force
- 46 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
Counties Howard County, IA, Winneshiek County, IA, Fillmore County, MN
The radar
The La Crosse radar (KARX), 62 km from the middle of the area, began a volume at 01:32 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 17, 7:01 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 1.5 hours before the alert went out and 192 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
- 1471 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 751 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 219 m²/s²
- 0-3 km storm-relative helicity
- 350 m²/s²
- Significant tornado parameter
- 1.8
- Supercell composite
- 12.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS53 KARX 180129
SVRARX
IAC089-191-MNC045-180215-
/O.NEW.KARX.SV.W.0021.090618T0129Z-090618T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
829 PM CDT WED JUN 17 2009
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN HOWARD COUNTY IN NORTHEAST IOWA...
NORTHWESTERN WINNESHIEK COUNTY IN NORTHEAST IOWA...
SOUTHEASTERN FILLMORE COUNTY IN SOUTHEAST MINNESOTA...
* UNTIL 915 PM CDT
* AT 828 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED NEAR COUNTY ROADS A 23 AND V 58...OR NEAR
CRESCO...MOVING NORTHEAST AT 35 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
HARVEST FARM CAMPGROUND AND KENDALLVILLE AROUND 835 PM...
HARMONY AND HUTTON AROUND 845 PM...
CANTON AND HENRYTOWN AROUND 850 PM...
LENORA AND AMHERST AROUND 855 PM...
NEWBURG AND HIGHLAND AROUND 900 PM...
TAWNEY AND CHOICE AROUND 905 PM...
BRATSBERG AROUND 915 PM...
QUARTER SIZE HAIL WAS JUST REPORTED IN LIME SPRINGS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS AND STAY AWAY FROM WINDOWS.
REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR
NO ADVANCED WARNING.
&&
LAT...LON 4379 9181 4369 9173 4356 9173 4334 9213
4351 9226
TIME...MOT...LOC 0129Z 239DEG 29KT 4345 9212
$$
AJ3 follow-up statements
000
WWUS53 KARX 180145 RRA
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
845 PM CDT WED JUN 17 2009
IAC089-180154-
/O.CAN.KARX.SV.W.0021.000000T0000Z-090618T0215Z/
HOWARD IA-
845 PM CDT WED JUN 17 2009
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HOWARD COUNTY IS
CANCELLED...
TO CALL YOUR SEVERE WEATHER REPORT DIRECTLY INTO THE NATIONAL WEATHER
SERVICE DIAL 6 0 8 7 8 2 1 8 9 4.
LAT...LON 4379 9181 4369 9173 4356 9173 4340 9203
4345 9209 4350 9208 4350 9214 4355 9219
TIME...MOT...LOC 0144Z 239DEG 29KT 4352 9200
$$
IAC191-MNC045-180215-
/O.CON.KARX.SV.W.0021.000000T0000Z-090618T0215Z/
WINNESHIEK IA-FILLMORE MN-
845 PM CDT WED JUN 17 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR SOUTHEASTERN FILLMORE AND NORTHWESTERN WINNESHIEK COUNTIES...
AT 842 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL. THIS STORM WAS LOCATED NEAR HARVEST FARM CAMPGROUND...OR 11
MILES NORTHEAST OF CRESCO...MOVING NORTHEAST AT 35 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
CANTON AROUND 850 PM...
LENORA AND HENRYTOWN AROUND 855 PM...
NEWBURG AROUND 900 PM...
TAWNEY AND HIGHLAND AROUND 905 PM...
CHOICE AROUND 910 PM...
BRATSBERG AROUND 915 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
STAY OR MOVE INDOORS AND AWAY FROM WINDOWS. BESIDES POSSIBLE ROOF OR
CROP DAMAGE...HAIL MAY ALSO DENT VEHICLES OR BREAK WINDSHIELDS IF
LEFT UNPROTECTED.
&&
LAT...LON 4379 9181 4369 9173 4356 9173 4340 9203
4345 9209 4350 9208 4350 9214 4355 9219
TIME...MOT...LOC 0144Z 239DEG 29KT 4352 9200
$$
AJ000
WWUS53 KARX 180206
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
906 PM CDT WED JUN 17 2009
IAC191-180216-
/O.CAN.KARX.SV.W.0021.000000T0000Z-090618T0215Z/
WINNESHIEK IA-
906 PM CDT WED JUN 17 2009
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WINNESHIEK COUNTY
IS CANCELLED...
TO CALL YOUR SEVERE WEATHER REPORT DIRECTLY INTO THE NATIONAL WEATHER
SERVICE DIAL 6 0 8 7 8 2 1 8 9 4.
LAT...LON 4373 9187 4369 9173 4356 9174 4350 9190
4361 9197
TIME...MOT...LOC 0206Z 241DEG 22KT 4358 9186
$$
MNC045-180215-
/O.CON.KARX.SV.W.0021.000000T0000Z-090618T0215Z/
FILLMORE MN-
906 PM CDT WED JUN 17 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR SOUTHEASTERN FILLMORE COUNTY...
AT 905 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL. THIS STORM WAS LOCATED NEAR NEWBURG...OR 13 MILES SOUTHEAST OF
PRESTON...MOVING NORTHEAST AT 25 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
HIGHLAND AROUND 910 PM...
CHOICE AROUND 915 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
STAY OR MOVE INDOORS AND AWAY FROM WINDOWS. BESIDES POSSIBLE ROOF OR
CROP DAMAGE...HAIL MAY ALSO DENT VEHICLES OR BREAK WINDSHIELDS IF
LEFT UNPROTECTED.
&&
LAT...LON 4373 9187 4369 9173 4356 9174 4350 9190
4361 9197
TIME...MOT...LOC 0206Z 241DEG 22KT 4358 9186
$$
AJ000
WWUS53 KARX 180215
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
915 PM CDT WED JUN 17 2009
MNC045-180223-
/O.CAN.KARX.SV.W.0021.000000T0000Z-090618T0215Z/
FILLMORE MN-
915 PM CDT WED JUN 17 2009
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN FILLMORE COUNTY
IS CANCELLED...
TO CALL YOUR SEVERE WEATHER REPORT DIRECTLY INTO THE NATIONAL WEATHER
SERVICE DIAL 6 0 8 7 8 2 1 8 9 4.
A TORNADO WATCH REMAINS IN EFFECT. CONDITIONS REMAIN FAVORABLE FOR
ADDITIONAL SEVERE THUNDERSTORMS WITH TORNADOES TO DEVELOP.
&&
LAT...LON 4373 9187 4369 9173 4356 9174 4350 9190
4361 9197
TIME...MOT...LOC 0213Z 239DEG 29KT 4364 9172
$$
AJThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 7:25 PM CDT | Severe Thunderstorm Warning | ARX | Howard, Mitchell | 65 min |
| Jun 17, 7:28 PM CDT | Tornado Warning | ARX | Floyd | 47 min |
| Jun 17, 8:10 PM CDT | Tornado Warning | ARX | Chickasaw, Floyd | 50 min |
| Jun 17, 8:52 PM CDT | Tornado Warning | ARX | Howard, Mitchell | 53 min |
| Jun 17, 8:59 PM CDT | Tornado Warning | ARX | Chickasaw | 46 min |
| Jun 17, 9:29 PM CDT | Flash Flood Warning | ARX | Chickasaw | 3 hr |
| Jun 17, 9:47 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 45 min |
| Jun 17, 9:50 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Fayette | 25 min |
| Jun 17, 10:49 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Howard, Winneshiek | 56 min |
| Jun 17, 11:31 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Fayette, Winneshiek | 57 min |
| Jun 18, 12:12 AM CDT | Severe Thunderstorm Warning | ARX | Fayette | 34 min |
| Jun 17, 7:14 PM CDT | Severe Thunderstorm Warning | ARX | Dodge, Mower | 46 min |
| Jun 17, 7:35 PM CDT | Tornado Warning | ARX | Dodge, Mower | 55 min |
| Jun 17, 8:11 PM CDT | Tornado Warning | ARX | Mower | 64 min |
| Jun 17, 8:31 PM CDT | Tornado Warning | ARX | Dodge | 59 min |
| Jun 17, 9:14 PM CDT | Severe Thunderstorm Warning | ARX | Mower, Olmsted | 39 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2009Severe Thunderstorm Warnings in Minnesota, 2009Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.