Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 91, NWS La Crosse, WI

July 22, 2013Buffalo County, Trempealeau County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Jul 22, 2013, 4:30 PM CDT for Buffalo County, Trempealeau County, Wisconsin. It was in force for 60 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: Jul 22, 2013, 4:30 PM CDT (21:30 UTC)
Expired: Jul 22, 2013, 5:30 PM CDT
In force: 60 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Buffalo County, WI, Trempealeau County, WI

The radar

The La Crosse radar (KARX), 34 km from the middle of the area, began a volume at 21:33 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
Jul 22, 4:48 PM CDT	FUNNEL CLOUD	2 Se Fountain City, WI	SPOTTER REPORTS FUNNEL CLOUD OVER MISSISSIPPI RIVER BETWEEN GOODVIEW AND FOUNTAIN CITY. ROTATION CONFIRMED BY ANOTHER LAW ENFORCEMENT OFFICER.
Jul 22, 5:07 PM CDT	HAIL 0.88	2 N Trempealeau, WI	DIME TO NICKEL SIZE HAIL REPORTED AT PEROT STATE PARK
Jul 22, 5:11 PM CDT	TORNADO	1 S Bluff Siding, WI	SEVERAL REPORTS OF TORNADO...CONFIRMED BY MEDIA AND EMERGENCY MANAGEMENT WITH PHOTOS AND VIDEO.
Jul 22, 5:17 PM CDT	HAIL 1.75	Centerville, WI	PING PONG BALL TO GOLF BALL SIZE REPORTED BY LAW ENFORCEMENT AND SPOTTERS
Jul 22, 5:19 PM CDT	FUNNEL CLOUD	Bluff Siding, WI	SEVERAL REPORTS OF A FUNNEL CLOUD IN THIS AREA BY AMATEUR RADIO OPERATORS ON BOTH MN AND WI SIDE OF THE RIVER.
Jul 22, 5:20 PM CDT	TORNADO	5 Wsw Centerville, WI	POSSIBLE TORNADO AT TREMPEALEAU WILDLIFE REFUGE. SWATH OF TREES DAMAGED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 47 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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 22, 3:33 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.5 hours before the alert went out and 193 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2407 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 602 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 184 m²/s²
0-3 km storm-relative helicity: 171 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

808 
WUUS53 KARX 222130
SVRARX
WIC011-121-222230-
/O.NEW.KARX.SV.W.0091.130722T2130Z-130722T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
430 PM CDT MON JUL 22 2013

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BUFFALO COUNTY IN WEST CENTRAL WISCONSIN...
  SOUTHERN TREMPEALEAU COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 530 PM CDT

* AT 428 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR WINONA...AND
  MOVING EAST AT 25 MPH.

  HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
           ROOFS...SIDING AND TREES.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  TREMPEALEAU AROUND 450 PM CDT.
  GALESVILLE AROUND 500 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE MARSHLAND...DODGE...PERROT 
STATE PARK...TAMARACK...CENTERVILLE AND ETTRICK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

&&

LAT...LON 4423 9115 4408 9115 4409 9120 4406 9122
      4407 9126 4407 9131 4402 9134 4399 9132
      4398 9138 4399 9143 4402 9151 4403 9158
      4410 9171 4413 9172 4416 9182 4420 9185
TIME...MOT...LOC 2130Z 267DEG 23KT 4409 9162

HAIL...1.00IN
WIND...60MPH

$$

RRS

4 follow-up statements

416 
WWUS53 KARX 222144
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
444 PM CDT MON JUL 22 2013

WIC011-121-222230-
/O.CON.KARX.SV.W.0091.000000T0000Z-130722T2230Z/
BUFFALO WI-TREMPEALEAU WI-
444 PM CDT MON JUL 22 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
TREMPEALEAU AND SOUTHEASTERN BUFFALO COUNTIES UNTIL 530 PM CDT...

AT 442 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 8 MILES NORTHEAST
OF WINONA...AND MOVING EAST AT 25 MPH.

HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  GALESVILLE AROUND 500 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE CENTERVILLE...FRENCHVILLE... 
ETTRICK...BEACH CORNERS...HEGG AND PEACOCK HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4421 9163 4423 9115 4408 9115 4409 9120
      4406 9122 4407 9131 4402 9134 4399 9133
      4399 9143 4401 9145 4403 9157 4410 9170
      4413 9172
TIME...MOT...LOC 2144Z 266DEG 23KT 4412 9150

HAIL...1.00IN
WIND...60MPH

$$

RRS

165 
WWUS53 KARX 222201
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
501 PM CDT MON JUL 22 2013

WIC011-121-222230-
/O.CON.KARX.SV.W.0091.000000T0000Z-130722T2230Z/
BUFFALO WI-TREMPEALEAU WI-
501 PM CDT MON JUL 22 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
TREMPEALEAU AND SOUTHEASTERN BUFFALO COUNTIES UNTIL 530 PM CDT...

AT 457 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES WEST OF
GALESVILLE...AND MOVING EAST AT 25 MPH.

HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  GALESVILLE AROUND 510 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE FRENCHVILLE...ETTRICK AND
PEACOCK HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

THIS THUNDERSTORM IS CAPABLE OF PRODUCING ALL TYPES OF SEVERE 
WEATHER...INCLUDING LARGE HAIL...DESTRUCTIVE WINDS AND POSSIBLY A 
TORNADO. MOVE QUICKLY TO A SAFE SHELTER...SUCH AS IN AN INTERIOR 
ROOM...A BATHROOM OR CLOSET...OR BASEMENT.

&&

LAT...LON 4413 9164 4422 9147 4423 9115 4408 9115
      4409 9120 4406 9122 4407 9131 4402 9134
      4399 9133 4399 9143 4401 9145 4403 9157
      4408 9167 4409 9167
TIME...MOT...LOC 2201Z 281DEG 22KT 4410 9144

HAIL...1.00IN
WIND...60MPH

$$

RRS

295 
WWUS53 KARX 222210
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
510 PM CDT MON JUL 22 2013

WIC011-121-222230-
/O.CON.KARX.SV.W.0091.000000T0000Z-130722T2230Z/
BUFFALO WI-TREMPEALEAU WI-
510 PM CDT MON JUL 22 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
TREMPEALEAU AND EXTREME SOUTHEASTERN BUFFALO COUNTIES UNTIL 530 PM
CDT...

AT 506 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR GALESVILLE...
AND MOVING EAST AT 25 MPH.

HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...AT 507 PM NICKLE SIZED HAIL WAS REPORTED IN PERROT STATE 
         PARK.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
GALESVILLE...IDUNA...FRENCHVILLE...ETTRICK...BEACH CORNERS...THIMBLE
PARK...HEGG AND PEACOCK HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

THIS THUNDERSTORM IS CAPABLE OF PRODUCING ALL TYPES OF SEVERE 
WEATHER...INCLUDING LARGE HAIL...DESTRUCTIVE WINDS AND POSSIBLY A 
TORNADO. MOVE QUICKLY TO A SAFE SHELTER...SUCH AS IN AN INTERIOR 
ROOM...A BATHROOM OR CLOSET...OR BASEMENT.

&&

LAT...LON 4412 9157 4421 9135 4423 9115 4408 9115
      4409 9120 4406 9122 4407 9131 4402 9134
      4399 9133 4399 9143 4401 9145 4403 9156
      4406 9164 4407 9164
TIME...MOT...LOC 2208Z 281DEG 22KT 4409 9138

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH

$$

RRS

891 
WWUS53 KARX 222220
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
520 PM CDT MON JUL 22 2013

WIC011-121-222230-
/O.CON.KARX.SV.W.0091.000000T0000Z-130722T2230Z/
BUFFALO WI-TREMPEALEAU WI-
520 PM CDT MON JUL 22 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
TREMPEALEAU AND EXTREME SOUTHEASTERN BUFFALO COUNTIES UNTIL 530 PM
CDT...

AT 515 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR GALESVILLE...
AND MOVING EAST AT 25 MPH.

HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...AT 517 PM GOLF BALL SIZED HAIL WAS REPORTED IN CENTERVILLE.

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL
         DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES. EXPECT WIND
         DAMAGE TO ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
BEACH CORNERS...THIMBLE PARK...HEGG AND PEACOCK HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4412 9157 4421 9135 4423 9115 4408 9115
      4409 9120 4406 9122 4407 9131 4402 9134
      4399 9133 4399 9143 4401 9145 4403 9156
      4406 9164 4407 9164
TIME...MOT...LOC 2219Z 281DEG 22KT 4407 9129

TORNADO...POSSIBLE
HAIL...1.75IN
WIND...60MPH

$$

RRS

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS La Crosse, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 22, 3:22 PM CDT, 1 hour 8 minutes earlier.

Area forecast discussion, Jul 22, 3:22 PM CDT, 1 hour 8 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
322 PM CDT MON JUL 22 2013

.SHORT TERM...(TONIGHT THROUGH TUESDAY NIGHT)
ISSUED AT 322 PM CDT MON JUL 22 2013

DATA ANALYSIS HAS A DEEP 999MB LOW OVER WESTERN ONTARIO CANADA WITH
A COLD FRONT EXTENDING ACROSS WESTERN LAKE MICHIGAN INTO THE TWIN
CITIES AND THEN INTO WESTERN IA. RADAR WAS SHOWING
SHOWERS/THUNDERSTORMS FIRING ACROSS NORTHWEST INTO WEST CENTRAL WI
AHEAD OF THE FRONT. THIS CONVECTION IS EXPECTED TO CONTINUE UPSCALE
TREND AND EXPAND SOUTHWARD ALONG THE FRONT OVER THE NEXT COUPLE OF
HOURS AS CAPE INCREASES OUT AHEAD OF THE FRONTAL BOUNDARY. NSSL WRF
AND A COUPLE OTHER WRF MODELS SHOW A BROKEN LINE OF STRONG TO SEVERE
THUNDERSTORMS OCCURING ALONG THIS FRONT AS IT SLIPS SOUTHEAST ACROSS
THE AREA. DAMAGING WINDS AND LARGE HAIL WILL BE THE MAIN THREAT WITH
THE LINE OF STORMS. AN ISOLATED TORNADO THREAT WILL BE MAINLY NORTH
OF I-94 WHERE STRONGER SHEAR/STORM RELATIVE HELICITY WILL EXIST.

LOOK FOR THIS FRONT AND STORMS TO PRETTY MUCH EXIT THE AREA AROUND
03Z WITH SKIES CLEARING FROM NORTHWEST TO THE SOUTHEAST AFTER
MIDNIGHT.

COOLER/DRIER AIR WILL FILTER INTO THE REGION ON TUESDAY AS CANADIAN
HIGH PRESSURE BUILDS IN. PLAN ON HIGHS IN THE 70S WITH DEW POINTS
LOWERING INTO THE LOW/MID 50S.

HIGH PRESSURE WILL THEN SETTLE OVER THE REGION FOR CLEAR/CALM
CONDITIONS. THIS SYNOPTIC SETUP WILL BE PRIME FOR LATE NIGHT/EARLY
MORNING RIVER VALLEY FOG. BASED ON THIS SIGNAL...WENT WITH AREAS OF
FOG ALONG THE WISCONSIN/MISSISSIPPI RIVER VALLEYS AND THEIR
TRIBUTARIES. ALSO INCLUDED AREAS OF FOG IN THE CRANBERRY BOG COUNTRY
OF CENTRAL WISCONSIN WHERE OVERNIGHT LOWS ARE EXPECTED TO BOTTOM OUT
IN THE MIDDLE 40S. LOW TO MIDDLE 50S ARE EXPECTED ELSEWHERE ACROSS
THE FORECAST AREA.

.LONG TERM...(WEDNESDAY THROUGH MONDAY)
ISSUED AT 322 PM CDT MON JUL 22 2013

AFTER SOME EXPECTED MORNING FOG WEDNESDAY...MODELS HINTING AT
DECAYING SHRA/TS ACTIVITY MOVING TOWARD THE AREA FROM THE NORTHERN
PLAIN AHEAD OF A MID-LEVEL SHORTWAVE TROUGH. DID INCLUDE A SMALL-END
SLIGHT CHANCE SHRA/TS ACROSS NORTH CENTRAL WI INTO SOUTHEAST
MN/NORTHEAST IA.

LOOK OF THAT MID-LEVEL TROUGH AND ASSOCIATED COLD FRONT TO MOVE INTO
THE REGION WEDNESDAY NIGHT/THURSDAY WITH A GENERAL INCREASE IN 850MB
MOISTURE TRANSPORT. BY THURSDAY AFTERNOON NAM IS INDICATING 0-1KM
MLCAPE INCREASING INTO THE 1000-200J/KG RANGE WITH 0-3KM BULK SHEAR
IN THE 20-25KT RANGE. WITH COOLING ALOFT...SEEMS LIKE HAIL WOULD BE
THE MAIN THREAT WITH THE STRONGER CONVECTION.  WILL HAVE TO KEEP AND
EYE ON THIS FOR THE POSSIBILITY OF SOME ISOLATED SEVERE CONVECTION.

MODELS SHOWING THIS FRONTAL BOUNDARY THEN LAYS UP WEST TO EAST
ACROSS SOUTHERN WI INTO NORTHERN IA THURSDAY NIGHT FOR A CONTINUED
CHANCE OF SHOWERS AND THUNDERSTORMS. CARRIED SHRA/TS CHANCES INTO
FRIDAY...BUT WOULD BE SURPRISED IF SUBSEQUENT FORECAST BECOME DRIER
AS MODELS BEGINNING TO INDICATE A SOUTHWARD SURGE OF THE FRONT OUT
OF THE AREA.

A FEW SHOWERS AND STORMS COULD STILL BE POSSIBLE ACROSS SOUTHERN
WI/NORTHEAST IA SATURDAY AS COLD AIR ALOFT AND AN EMBEDDED TROUGH
ROTATES THROUGH THAT AREA.

FOR SATURDAY NIGHT THROUGH MONDAY...WEATHER APPEARS DRY AS A RIDGE
OF HIGH PRESSURE BUILDS INTO THE REGION.

AS FOR TEMPERATURES...COOLER THAN NORMAL READING ARE EXPECTED AS
COLDER NORTHWEST FLOW TAKES HOLD ACROSS THE AREA WEDNESDAY THROUGH
SATURDAY. PLAN ON HIGHS IN THE 70S FOR WEDNESDAY THROUGH FRIDAY WITH
THE COOLEST DAY LOOKING TO BE ON SATURDAY WITH HIGHS RANGING FROM 69
TO 76 DEGREES. SOME REBOUND IN TEMPERATURES SHOULD OCCUR
SUNDAY/MONDAY AS HEIGHTS BUILD OVER THE AREA.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z TUESDAY AFTERNOON) ISSUED
AT 1232 PM CDT MON JUL 22 2013

APPROACHING COLD FRONT WILL LIKELY BRING WINDOW OF CONVECTION THAT
COULD BRING TEMPORARY MVFR CONDITIONS UNTIL PASSAGE EARLY THIS
EVENING. NORMAL VEERING WIND SHIFT EXPECTED WITH FRONT AS WELL.

QUESTIONS TO WHAT DEGREE STRATUS FIELD IN BROAD COLD AIR ADVECTION
BEHIND FRONT WILL HOLD TOGETHER AND IMPACT AVIATION TONIGHT. VERY
CELLULAR NATURE TO CLOUDS SUGGEST MORE DIURNAL BUT FEEL THERE WILL
LIKELY BE A WINDOW OF LOWER CEILINGS BEFORE IT DISSIPATES. COULD SEE
SOME REFORM LATER TUESDAY AS WELL IN COLDER AIR ALOFT.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...

WI...NONE.
MN...NONE.
IA...NONE.

&&

SHORT TERM...DAS
LONG TERM...DAS
AVIATION...SHEA

Hazardous weather outlook, Jul 22, 3:19 PM CDT, 1 hour 11 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LA CROSSE WI
319 PM CDT MON JUL 22 2013

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-032>034-
041>044-053>055-061-231200-
ADAMS-ALLAMAKEE-BUFFALO-CHICKASAW-CLARK-CLAYTON-CRAWFORD-DODGE-
FAYETTE-FILLMORE-FLOYD-GRANT-HOUSTON-HOWARD-JACKSON-JUNEAU-LA CROSSE-
MITCHELL-MONROE-MOWER-OLMSTED-RICHLAND-TAYLOR-TREMPEALEAU-VERNON-
WABASHA-WINNESHIEK-WINONA-
319 PM CDT MON JUL 22 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF SOUTHEAST
MINNESOTA...NORTHEAST IOWA...AND SOUTHWEST INTO CENTRAL WISCONSIN.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THUNDERSTORMS WERE GROWING AROUND THE AREA AHEAD OF AN APPROACHING
COLD FRONT. ALTHOUGH NOT ALL AREAS WILL SEE THIS STORM ACTIVITY...
THE STRONGER STORMS THAT MOVE SOUTHEAST THROUGH THE AREA WILL HAVE
THE POTENTIAL TO PRODUCE HAIL...GUSTY WINDS AND BRIEF HEAVY RAIN.
LIGHTNING IS ANOTHER THREAT.

THESE STORMS WILL AFFECT PARTS OF THE AREA THROUGH 8 PM.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE ARE THUNDERSTORM CHANCES WEDNESDAY NIGHT THROUGH SUNDAY. MOST
OF THE STORMS DURING THIS PERIOD WILL LIKELY BE NON-SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION COULD BE NEEDED AT TIMES THROUGH 8 PM THIS
EVENING.

.EMERGENCY MANAGEMENT COORDINATION...

NO WEBINAR IS SCHEDULED.

AJ/SHEA

In the hours before

Special weather statement, Jul 22, 3:45 PM CDT, 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
345 PM CDT MON JUL 22 2013

IAZ008>010-018-019-MNZ079-087-088-094>096-WIZ032>034-041-222130-
BUFFALO-CHICKASAW-FILLMORE-FLOYD-HOUSTON-HOWARD-JACKSON-LA CROSSE-
MITCHELL-MOWER-OLMSTED-TREMPEALEAU-WABASHA-WINNESHIEK-WINONA-
345 PM CDT MON JUL 22 2013

...LINE OF THUNDERSTORMS DEVELOPING ACROSS THE AREA...

AT 345 PM...A LINE OF THUNDERSTORMS CONTINUED TO DEVELOP...EXTENDING
FROM NEAR EAU CLAIRE AND ALMA WISCONSIN ACROSS SOUTHEAST MINNESOTA
TO NEAR SAINT ANSGAR AND MASON CITY IOWA. THE LINE WAS MOVING EAST
AROUND 30 MPH. BY 430 PM THE LINE WILL BE NEAR OSSEO WISCONSIN TO
EAST OF WINONA MINNESOTA TO NEAR CHARLES CITY IOWA.

AS THE STORMS DEVELOP ALONG THE LINE THROUGH THE REST OF THE
AFTERNOON...A FEW OF THEM ARE EXPECTED TO BECOME SEVERE WITH LARGE
HAIL AND DAMAGING WINDS. IF ONE OF THESE STORMS APPROACHES YOUR
LOCATION...MOVE INSIDE A STURDY BUILDING UNTIL IT PASSES.

RRS

Local storm report, Jul 22, 3:55 PM CDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
355 PM CDT MON JUL 22 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0340 PM     HAIL             STACYVILLE              43.44N 92.78W
07/22/2013  M0.88 INCH       MITCHELL           IA   LAW ENFORCEMENT

            DIME TO NICKEL SIZE HAIL

&&

MW

Local storm report, Jul 22, 4:16 PM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
416 PM CDT MON JUL 22 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0400 PM     HAIL             STACYVILLE              43.44N 92.78W
07/22/2013  M1.00 INCH       MITCHELL           IA   PUBLIC

&&

ZT

Local storm report, Jul 22, 4:19 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
419 PM CDT MON JUL 22 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0415 PM     TSTM WND GST     2 W LE ROY              43.51N 92.55W
07/22/2013  M52 MPH          MOWER              MN   TRAINED SPOTTER

&&

ZT

Special weather statement, Jul 22, 4:25 PM CDT, 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
425 PM CDT MON JUL 22 2013

IAZ008>011-018-019-029-MNZ088-095-096-WIZ032>034-041-042-053-222215-
ALLAMAKEE-BUFFALO-CHICKASAW-FAYETTE-FILLMORE-FLOYD-HOUSTON-HOWARD-
JACKSON-LA CROSSE-MITCHELL-MONROE-TREMPEALEAU-VERNON-WINNESHIEK-
WINONA-
425 PM CDT MON JUL 22 2013

...LINE OF THUNDERSTORMS CONTINUED TO DEVELOP...

AT 425 PM...A LINE OF THUNDERSTORMS CONTINUED TO DEVELOP...EXTENDING
FROM NEAR OSSEO WISCONSIN TO WINONA MINNESOTA THEN TO NORTH OF
CHARLES CITY IOWA. THE LINE CONTINUED TO MOVE EAST AROUND 25 MPH.
THE STRONGEST OF THE STORMS WERE NEAR THE MINNESOTA-IOWA STATE LINE.
BY 515 PM THE LINE WILL BE NEAR BLACK RIVER FALLS AND LA CROSSE
WISCONSIN TO HOUSTON MINNESOTA AND NEW HAMPTON IOWA.

AS THE STORMS DEVELOP ALONG THE LINE AND MOVE EAST THROUGH THE REST
OF THE AFTERNOON...A FEW OF THEM ARE EXPECTED TO BECOME SEVERE WITH
LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING CAN ALSO BE
EXPECTED WITH SOME OF THE STORMS. IF ONE OF THESE STORMS APPROACHES
YOUR LOCATION...MOVE INSIDE A STURDY BUILDING UNTIL IT PASSES.

RRS

Local storm report, Jul 22, 4:26 PM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
426 PM CDT MON JUL 22 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0405 PM     HAIL             MINNEISKA               44.19N 91.87W
07/22/2013  M0.75 INCH       WABASHA            MN   AMATEUR RADIO

&&

MW

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 22, 5:14 PM CDT	Severe Thunderstorm Warning	ARX	Clark, Jackson	61 min
Jul 22, 5:14 PM CDT	Severe Thunderstorm Warning	ARX	La Crosse	61 min
Jul 22, 5:24 PM CDT	Tornado Warning Tornado observed	ARX	Trempealeau	36 min
Jul 22, 5:25 PM CDT	Severe Thunderstorm Warning	ARX	Trempealeau	35 min
Jul 22, 6:39 PM CDT	Severe Thunderstorm Warning	ARX	Vernon	36 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2013 Every severe thunderstorm warning in 2013

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.