Alert archive / Wisconsin / Tornado Warnings in 2013

Tornado Warning 4, NWS Twin Cities, MN

May 19, 2013Pierce County, Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at May 19, 2013, 5:26 PM CDT for Pierce County, Saint Croix County, Wisconsin. It was in force for 34 min. 1 report 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 19, 2013, 5:26 PM CDT (22:26 UTC)
Expired: May 19, 2013, 6:00 PM CDT
In force: 34 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Pierce County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 97 km from the middle of the area, began a volume at 22:28 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 19, 5:40 PM CDT	TSTM WND DMG	Baldwin, WI	THREE INCH DIAMETER BRANCHES DOWN.

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 19, 1:10 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.4 hours before the alert went out and 340 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.

600 
WFUS53 KMPX 192226
TORMPX
WIC093-109-192300-
/O.NEW.KMPX.TO.W.0004.130519T2226Z-130519T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
526 PM CDT SUN MAY 19 2013

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL PIERCE COUNTY IN WEST CENTRAL WISCONSIN...
  EASTERN ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 600 PM CDT

* AT 523 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR ELLSWORTH...AND MOVING NORTH AT 45 MPH.

  HAZARD...DEVELOPING TORNADO.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.
           SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL
           OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.
           EXTENSIVE TREE DAMAGE IS LIKELY.

* LOCATIONS IMPACTED INCLUDE...
  WOODVILLE...BALDWIN...HAMMOND...EMERALD...CYLON...FOREST AND DEER
  PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4472 9234 4475 9259 4521 9251 4521 9216
      4520 9215
TIME...MOT...LOC 2227Z 189DEG 41KT 4485 9244

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

1 follow-up statement

764 
WWUS53 KMPX 192234
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
534 PM CDT SUN MAY 19 2013

WIC093-192244-
/O.CAN.KMPX.TO.W.0004.000000T0000Z-130519T2300Z/
PIERCE WI-
534 PM CDT SUN MAY 19 2013

...THE TORNADO WARNING FOR NORTH CENTRAL PIERCE COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA.

LAT...LON 4486 9229 4486 9257 4496 9256 4521 9251
      4521 9216 4520 9215
TIME...MOT...LOC 2234Z 189DEG 41KT 4493 9242

$$

WIC109-192300-
/O.CON.KMPX.TO.W.0004.000000T0000Z-130519T2300Z/
ST. CROIX WI-
534 PM CDT SUN MAY 19 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN ST. CROIX COUNTY
UNTIL 600 PM CDT...

AT 532 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 10 MILES EAST OF RIVER FALLS...AND MOVING NORTH AT 45
MPH.

HAZARD...DEVELOPING TORNADO.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.
         SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL
         OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.
         EXTENSIVE TREE DAMAGE IS LIKELY.

LOCATIONS IMPACTED INCLUDE...
WOODVILLE...BALDWIN...HAMMOND...EMERALD...CYLON...FOREST AND DEER
PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4486 9229 4486 9257 4496 9256 4521 9251
      4521 9216 4520 9215
TIME...MOT...LOC 2234Z 189DEG 41KT 4493 9242

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 19, 4:27 PM CDT	Severe Thunderstorm Warning	MPX	Pierce	33 min
May 19, 4:50 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pepin, Pierce	40 min
May 19, 4:54 PM CDT	Severe Thunderstorm Warning	MPX	Pierce, Saint Croix	36 min
May 19, 5:16 PM CDT	Severe Thunderstorm Warning	MPX	Rusk	44 min
May 19, 5:18 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pepin, Pierce, Saint Croix	42 min
May 19, 5:23 PM CDT	Severe Thunderstorm Warning	MPX	Pierce, Polk, Saint Croix	37 min
May 19, 5:51 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Dunn, Polk, Saint Croix	39 min
May 19, 6:00 PM CDT	Severe Thunderstorm Warning	MPX	Polk	15 min
May 19, 6:26 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Polk, Rusk	19 min
May 19, 6:36 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Eau Claire	39 min

Nearby

Tornado Warnings in Wisconsin, 2013 Every tornado warning in 2013 Tornadoes 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.