Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 21, NWS La Crosse, WI

May 19, 2013Buffalo County, Trempealeau County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at May 19, 2013, 6:27 PM CDT for Buffalo County, Trempealeau County, Wisconsin. It was in force for 33 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: May 19, 2013, 6:27 PM CDT (23:27 UTC)
Expired: May 19, 2013, 7:00 PM CDT
In force: 33 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), 85 km from the middle of the area, began a volume at 23:30 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
May 19, 1:10 PM CDT	Tornado Watch	SPC	8 hr
May 19, 5:25 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.5 hours before the alert went out and 271 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: 65 J/kg
Mixed-layer CIN: -210 J/kg
Mixed-layer LCL: 924 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

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

982 
WUUS53 KARX 192327
SVRARX
WIC011-121-200000-
/O.NEW.KARX.SV.W.0021.130519T2327Z-130520T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
627 PM CDT SUN MAY 19 2013

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN BUFFALO COUNTY IN WEST CENTRAL WISCONSIN...
  NORTHWESTERN TREMPEALEAU COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 700 PM CDT

* AT 625 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MONDOVI...  
AND MOVING NORTHEAST AT 40 MPH. THIS WARNING EXTENDS THE PREVIOUS 
WARNING. 

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

  SOURCE...RADAR INDICATED.

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

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF
  NORTHEASTERN BUFFALO AND NORTHWESTERN TREMPEALEAU COUNTIES...
  INCLUDING THE FOLLOWING LOCATIONS ELEVA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4460 9137 4459 9137 4440 9156 4449 9177
      4460 9169
TIME...MOT...LOC 2327Z 211DEG 35KT 4453 9159

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

$$

RIECK

2 follow-up statements

003 
WWUS53 KARX 192337
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
637 PM CDT SUN MAY 19 2013

WIC011-121-200000-
/O.CON.KARX.SV.W.0021.000000T0000Z-130520T0000Z/
BUFFALO WI-TREMPEALEAU WI-
637 PM CDT SUN MAY 19 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
TREMPEALEAU AND NORTHEASTERN BUFFALO COUNTIES UNTIL 700 PM CDT...

AT 635 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES EAST OF
MONDOVI...AND MOVING NORTHEAST AT 40 MPH.

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

SOURCE...TRAINED WEATHER SPOTTERS. SPOTTER 1 MILE WEST OF ELEVA 
ESTIMATED 50 MPH WINDS AND QUARTER SIZED HAIL. 

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

LOCATIONS IMPACTED INCLUDE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT
IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE
TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT
OR SMALL INTERIOR ROOM.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4460 9137 4459 9137 4446 9153 4449 9177
      4460 9169
TIME...MOT...LOC 2337Z 211DEG 35KT 4461 9152

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

$$

RIECK

554 
WWUS53 KARX 192346
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
646 PM CDT SUN MAY 19 2013

WIC011-121-192356-
/O.CAN.KARX.SV.W.0021.000000T0000Z-130520T0000Z/
BUFFALO WI-TREMPEALEAU WI-
646 PM CDT SUN MAY 19 2013

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN TREMPEALEAU AND
NORTHEASTERN BUFFALO COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA. STRONG TO SEVERE STORMS REMAIN POSSIBLE.

LAT...LON 4460 9137 4459 9137 4446 9153 4449 9177
      4460 9169
TIME...MOT...LOC 2346Z 211DEG 35KT 4469 9146

$$

RIECK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 5:31 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Trempealeau	59 min
May 19, 6:29 PM CDT	Severe Thunderstorm Warning	ARX	Clark, Jackson, La Crosse, Trempealeau	76 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.