Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 84, NWS Twin Cities, MN

July 12, 20154 counties in Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 12, 2015, 11:26 PM CDT for 4 counties in Wisconsin. It was in force for 49 min. 2 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 12, 2015, 11:26 PM CDT (04:26 UTC)
Expired: Jul 13, 2015, 12:15 AM CDT
In force: 49 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Barron County, WI, Chippewa County, WI, Dunn County, WI, Rusk County, WI

The radar

The Minneapolis radar (KMPX), 165 km from the middle of the area, began a volume at 04:28 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
Jul 12, 11:45 PM CDT	TSTM WND DMG	25 Sw Ladysmith, WI	SMALL TREES KNOCKED DOWN NEAR BORDER WITH CHIPPEWA COUNTY.
Jul 12, 11:45 PM CDT	TSTM WND DMG	5 E New Auburn, WI	SMALL TREES KNOCKED DOWN NEAR BORDER WITH CHIPPEWA COUNTY.

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
Jul 12, 9:59 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.4 hours before the alert went out and 168 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: 3598 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 1040 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 12.7

Open this sounding in Storm Lab

The text

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

101 
WUUS53 KMPX 130426
SVRMPX
WIC005-017-033-107-130515-
/O.NEW.KMPX.SV.W.0084.150713T0426Z-150713T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1126 PM CDT SUN JUL 12 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN RUSK COUNTY IN NORTHWESTERN WISCONSIN...
  NORTHWESTERN CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN...
  NORTHEASTERN DUNN COUNTY IN WEST CENTRAL WISCONSIN...
  EASTERN BARRON COUNTY IN NORTHWESTERN WISCONSIN...

* UNTIL 1215 AM CDT

* AT 1125 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR HAUGEN TO NEAR WHEELER...MOVING EAST AT 35 MPH.

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

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  RICE LAKE AROUND 1135 PM CDT.
  BLOOMER AROUND 1200 AM CDT.
  WEYERHAEUSER AROUND 1205 AM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
TILDEN...RICE LAKE AIRPORT...MIKANA...HILLSDALE...SUMNER...SAND CREEK
AND CANTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4562 9135 4499 9142 4505 9195 4558 9191
TIME...MOT...LOC 0425Z 276DEG 29KT 4554 9184 4509 9187 

HAIL...0.75IN
WIND...60MPH
 
$$

CLF

1 follow-up statement

679 
WWUS53 KMPX 130500
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1200 AM CDT MON JUL 13 2015

WIC033-130509-
/O.CAN.KMPX.SV.W.0084.000000T0000Z-150713T0515Z/
DUNN WI-
1200 AM CDT MON JUL 13 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DUNN COUNTY IS
CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED 
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT FOR
NORTHWESTERN WISCONSIN.

LAT...LON 4499 9142 4502 9165 4512 9165 4512 9167
      4522 9167 4521 9156 4560 9155 4561 9154
      4562 9135
TIME...MOT...LOC 0459Z 276DEG 29KT 4551 9148 4506 9151 

$$

WIC005-017-107-130515-
/O.CON.KMPX.SV.W.0084.000000T0000Z-150713T0515Z/
RUSK WI-CHIPPEWA WI-BARRON WI-
1200 AM CDT MON JUL 13 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT
FOR WESTERN RUSK...NORTHWESTERN CHIPPEWA AND SOUTHEASTERN BARRON
COUNTIES...

AT 1159 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES NORTHWEST OF WEYERHAEUSER TO NEAR BLOOMER...
MOVING EAST AT 35 MPH.

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

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

THESE SEVERE STORMS WILL BE NEAR...
  WEYERHAEUSER AROUND 1205 AM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
TILDEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4499 9142 4502 9165 4512 9165 4512 9167
      4522 9167 4521 9156 4560 9155 4561 9154
      4562 9135
TIME...MOT...LOC 0459Z 276DEG 29KT 4551 9148 4506 9151 

HAIL...0.75IN
WIND...60MPH
 
$$

JRB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 9:24 PM CDT	Severe Thunderstorm Warning	MPX	Polk	51 min
Jul 12, 9:48 PM CDT	Severe Thunderstorm Warning	MPX	Polk	57 min
Jul 12, 9:59 PM CDT	Severe Thunderstorm Warning	MPX	Polk, Saint Croix	61 min
Jul 12, 10:18 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Dunn	57 min
Jul 12, 10:45 PM CDT	Special Weather Statement	MPX	Saint Croix	60 min
Jul 12, 11:40 PM CDT	Special Weather Statement	MPX	Dunn, Pepin, Pierce	50 min
Jul 13, 12:03 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Dunn, Eau Claire	42 min
Jul 13, 12:17 AM CDT	Special Weather Statement	MPX	Rusk	28 min
Jul 13, 12:37 AM CDT	Special Weather Statement	MPX	Eau Claire	23 min
Jul 13, 12:41 AM CDT	Special Weather Statement	MPX	Pepin	64 min
Jul 13, 2:47 AM CDT	Special Weather Statement	MPX	Saint Croix	58 min
Jul 13, 2:56 PM CDT	Special Weather Statement	MPX	Polk	34 min
Jul 13, 3:00 PM CDT	Severe Thunderstorm Warning	MPX	Polk	45 min
Jul 13, 3:49 PM CDT	Special Weather Statement	MPX	Polk	41 min
Jul 13, 4:03 PM CDT	Severe Thunderstorm Warning	MPX	Polk	21 min
Jul 13, 4:13 PM CDT	Severe Thunderstorm Warning	MPX	Polk	28 min
Jul 13, 4:36 PM CDT	Special Weather Statement	MPX	Dunn	39 min
Jul 13, 5:25 PM CDT	Special Weather Statement	MPX	Eau Claire	20 min
Jul 13, 5:41 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Saint Croix	31 min
Jul 13, 6:03 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pepin	31 min
Jul 13, 6:22 PM CDT	Severe Thunderstorm Warning	MPX	Eau Claire	23 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2015 Every severe thunderstorm warning in 2015

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.