Alert archive / Iowa / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 22, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at May 22, 2011, 2:03 PM CDT for Floyd County, Howard County, Mitchell County, Iowa; Fillmore County, Mower County, Minnesota. It was in force for 57 min. 6 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 22, 2011, 2:03 PM CDT (19:03 UTC)
- Expired
- May 22, 2011, 3:00 PM CDT
- In force
- 57 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Floyd County, IA, Howard County, IA, Mitchell County, IA, Fillmore County, MN, Mower County, MN
The radar
The La Crosse radar (KARX), 109 km from the middle of the area, began a volume at 19:07 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 |
|---|---|---|---|
| May 22, 2:33 PM CDT | TORNADO | 4 Ne Riceville, IA | DAMAGE SURVEY CONDUCTED 5/23. THE TORNADO BEGAN 4.2 MILES NORTHEAST OF RICEVILLE WITH EF1 DAMAGE. IT REACHED ITS MAXIMUM STRENGTH EF2 AND SIZE 250 YARDS WIDE 2.5 MILES SOUTH OF CHESTER IOWA. THE PATH CONTINUED NORTHEAST INTO FILLMORE COUNTY MINNESOTA DISSIPATI |
| May 22, 2:45 PM CDT | TSTM WND DMG | 5 E Mcintire, IA | SEVERE DAMAGE TO A HOME |
| May 22, 2:59 PM CDT | TSTM WND DMG | 3 Ssw Chester, IA | POWER LINES DOWN |
| May 22, 3:02 PM CDT | TSTM WND DMG | 2 S Chester, IA | SIGNIFICANT DAMAGE TO HOME/FARM |
| May 22, 3:02 PM CDT | TORNADO | York, MN | TORNADO ON GROUND. |
| May 22, 3:04 PM CDT | TSTM WND DMG | 3 N Granger, MN | BARN DAMAGED 3 MILES NORTH OF GRANGER |
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 22, 12:07 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 7.1 hours before the alert went out and 180 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
- 20 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 981 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 243 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
803
WUUS53 KARX 221903
SVRARX
IAC067-089-131-MNC045-099-222000-
/O.NEW.KARX.SV.W.0022.110522T1903Z-110522T2000Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
203 PM CDT SUN MAY 22 2011
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN FLOYD COUNTY IN NORTH CENTRAL IOWA...
MITCHELL COUNTY IN NORTH CENTRAL IOWA...
WESTERN HOWARD COUNTY IN NORTHEAST IOWA...
FILLMORE COUNTY IN SOUTHEAST MINNESOTA...
SOUTHEASTERN MOWER COUNTY IN SOUTHEAST MINNESOTA...
* UNTIL 300 PM CDT
* AT 157 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR ROCK CREEK...OR 8 MILES SOUTH OF
OSAGE...MOVING NORTHEAST AT 55 MPH. THIS STORM CAN PRODUCE QUARTER
SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
BROWNVILLE AND PIONEER STATE PARK AROUND 210 PM...
STACYVILLE AROUND 215 PM...
RICEVILLE AND MCINTIRE AROUND 220 PM...
SARATOGA AROUND 225 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE
AND STAY AWAY FROM WINDOWS.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS OCCASIONALLY PRODUCE TORNADOES...AND CAN DO SO QUICKLY.
MOVE INTO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM THIS EVENING.
&&
LAT...LON 4385 9232 4385 9215 4367 9182 4321 9252
4321 9255 4319 9255 4307 9274 4327 9304
TIME...MOT...LOC 1903Z 224DEG 50KT 4324 9279
WIND...HAIL 60MPH 1.00IN
$$
BOYNE4 follow-up statements
146
WWUS53 KARX 221909
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
209 PM CDT SUN MAY 22 2011
IAC067-089-131-MNC045-099-222000-
/O.CON.KARX.SV.W.0022.000000T0000Z-110522T2000Z/
MITCHELL IA-HOWARD IA-FLOYD IA-FILLMORE MN-MOWER MN-
209 PM CDT SUN MAY 22 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
MOWER...FILLMORE...NORTHEASTERN FLOYD...NORTHWESTERN HOWARD AND
MITCHELL COUNTIES UNTIL 300 PM CDT...
AT 207 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR HIGHWAYS 9 AND 218...OR NEAR
OSAGE...MOVING NORTHEAST AT 55 MPH. THIS STORM CAN PRODUCE QUARTER
SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
STACYVILLE AND COUNTY ROADS T 54 AND A 31 AROUND 215 PM...
RICEVILLE AND MCINTIRE AROUND 220 PM...
LE ROY AND COUNTY V 10 AND 40TH STREET AROUND 225 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE
AND STAY AWAY FROM WINDOWS.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS OCCASIONALLY PRODUCE TORNADOES...AND CAN DO SO QUICKLY.
MOVE INTO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS.
&&
LAT...LON 4385 9232 4385 9215 4367 9182 4321 9252
4321 9255 4319 9255 4307 9274 4327 9304
TIME...MOT...LOC 1908Z 224DEG 50KT 4329 9272
WIND...HAIL 60MPH 1.00IN
$$
BOYNE190
WWUS53 KARX 221917
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
217 PM CDT SUN MAY 22 2011
IAC067-089-131-MNC045-099-222000-
/O.CON.KARX.SV.W.0022.000000T0000Z-110522T2000Z/
MITCHELL IA-HOWARD IA-FLOYD IA-FILLMORE MN-MOWER MN-
217 PM CDT SUN MAY 22 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
MOWER...FILLMORE...NORTHEASTERN FLOYD...NORTHWESTERN HOWARD AND
EASTERN MITCHELL COUNTIES UNTIL 300 PM CDT...
AT 216 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR PIONEER STATE PARK...OR 9 MILES
NORTHEAST OF OSAGE...MOVING NORTHEAST AT 60 MPH. THIS STORM CAN
PRODUCE QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
COUNTY V 10 AND 40TH STREET AND BAILEY AROUND 225 PM...
LE ROY AND HAYDEN PRAIRIE AROUND 230 PM...
LIME SPRINGS AND CHESTER AROUND 235 PM...
SPRING VALLEY AND CHERRY GROVE AROUND 240 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE
AND STAY AWAY FROM WINDOWS.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS OCCASIONALLY PRODUCE TORNADOES...AND CAN DO SO QUICKLY.
MOVE INTO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS.
&&
LAT...LON 4348 9277 4385 9232 4384 9214 4367 9182
4321 9252 4321 9255 4319 9256 4317 9271
4316 9288 4317 9289
TIME...MOT...LOC 1918Z 225DEG 52KT 4336 9262
WIND...HAIL 60MPH 1.00IN
$$
BOYNE581
WWUS53 KARX 221928
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
228 PM CDT SUN MAY 22 2011
IAC067-221937-
/O.CAN.KARX.SV.W.0022.000000T0000Z-110522T2000Z/
FLOYD IA-
228 PM CDT SUN MAY 22 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN FLOYD COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
A TORNADO WATCH REMAINS IN EFFECT. CONDITIONS REMAIN FAVORABLE FOR
ADDITIONAL SEVERE THUNDERSTORMS TO DEVELOP THAT MAY PRODUCE
TORNADOES.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT THIS EVENING.
LAT...LON 4323 9251 4321 9281 4348 9269 4385 9232
4384 9214 4367 9182
TIME...MOT...LOC 1927Z 226DEG 39KT 4339 9260
$$
IAC089-131-MNC045-099-222000-
/O.CON.KARX.SV.W.0022.000000T0000Z-110522T2000Z/
MITCHELL IA-HOWARD IA-FILLMORE MN-MOWER MN-
228 PM CDT SUN MAY 22 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
MOWER...FILLMORE...WESTERN HOWARD AND EASTERN MITCHELL COUNTIES UNTIL
300 PM CDT...
AT 225 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR COUNTY ROADS T 54 AND A 31...OR 11
MILES NORTHEAST OF OSAGE...MOVING NORTHEAST AT 45 MPH. THIS STORM CAN
PRODUCE QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
COUNTY V 10 AND 40TH STREET AND SARATOGA AROUND 235 PM...
LE ROY AND LAKE LOUISE STATE PARK AROUND 240 PM...
LIME SPRINGS AND CHESTER AROUND 245 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE
AND STAY AWAY FROM WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM THIS EVENING.
&&
LAT...LON 4323 9251 4321 9281 4348 9269 4385 9232
4384 9214 4367 9182
TIME...MOT...LOC 1927Z 226DEG 39KT 4339 9260
WIND...HAIL 60MPH 1.00IN
$$
BOYNE434
WWUS53 KARX 221939
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
239 PM CDT SUN MAY 22 2011
IAC089-131-MNC045-099-222000-
/O.CON.KARX.SV.W.0022.000000T0000Z-110522T2000Z/
MITCHELL IA-HOWARD IA-FILLMORE MN-MOWER MN-
239 PM CDT SUN MAY 22 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
MOWER...FILLMORE...WESTERN HOWARD AND EASTERN MITCHELL COUNTIES UNTIL
300 PM CDT...
AT 234 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR COUNTY V 10 AND 40TH STREET...OR
18 MILES NORTHEAST OF OSAGE...MOVING NORTHEAST AT 75 MPH. THIS STORM
CAN PRODUCE QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
CHERRY GROVE AND YORK AROUND 245 PM...
SPRING VALLEY AND FORESTVILLE STATE PARK AROUND 250 PM...
PRESTON AND WYKOFF AROUND 255 PM...
FOUNTAIN AND LANESBORO AROUND 300 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE
AND STAY AWAY FROM WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM THIS EVENING.
&&
LAT...LON 4323 9251 4321 9281 4348 9269 4385 9232
4384 9214 4367 9182
TIME...MOT...LOC 1939Z 226DEG 63KT 4348 9242
WIND...HAIL 60MPH 1.00IN
$$
BOYNEThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 2:43 PM CDT | Tornado Warning | ARX | Howard | 62 min |
| May 22, 3:22 PM CDT | Tornado Warning | ARX | Fayette | 38 min |
| May 22, 4:19 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton, Fayette | 56 min |
| May 22, 1:18 PM CDT | Severe Thunderstorm Warning | ARX | Dodge, Mower, Olmsted | 57 min |
| May 22, 2:15 PM CDT | Severe Thunderstorm Warning | ARX | Dodge, Olmsted, Wabasha | 45 min |
| May 22, 3:10 PM CDT | Severe Thunderstorm Warning | ARX | Olmsted, Winona | 37 min |
| May 22, 3:21 PM CDT | Tornado Warning | ARX | Fillmore | 24 min |
| May 22, 3:46 PM CDT | Tornado Warning | ARX | Fillmore, Houston | 29 min |
| May 22, 4:16 PM CDT | Tornado Warning | ARX | Houston | 29 min |
| May 22, 4:39 PM CDT | Severe Thunderstorm Warning | ARX | Houston, Winona | 66 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2011Severe Thunderstorm Warnings in Minnesota, 2011Every severe thunderstorm warning in 2011
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.