Alert archive / Minnesota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 71, NWS La Crosse, WI

August 18, 2016Dodge County, Mower County, Minnesota

NWS La Crosse, WI issued this severe thunderstorm warning at Aug 18, 2016, 4:29 PM CDT for Dodge County, Mower County, Minnesota. It was in force for 61 min. 15 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: Aug 18, 2016, 4:29 PM CDT (21:29 UTC)
Expired: Aug 18, 2016, 5:30 PM CDT
In force: 61 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Dodge County, MN, Mower County, MN

The radar

The Minneapolis radar (KMPX), 116 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
Aug 18, 4:43 PM CDT	TSTM WND DMG	9 W Hayfield, MN	TREES REPORTED DOWN ALONG COUNTY LINE NEAR BLOOMING PRAIRIE
Aug 18, 4:43 PM CDT	TSTM WND DMG	9 Wnw Waltham, MN	TREES REPORTED DOWN ALONG COUNTY LINE NEAR BLOOMING PRAIRIE.
Aug 18, 4:53 PM CDT	TSTM WND GST 45	Austin, MN
Aug 18, 4:55 PM CDT	TSTM WND DMG	Austin, MN	LARGE TREE UPROOTED
Aug 18, 4:55 PM CDT	TSTM WND DMG	Austin, MN	LARGE TREE UPROOTED.
Aug 18, 4:55 PM CDT	TSTM WND GST 43	Austin, MN
Aug 18, 4:58 PM CDT	TSTM WND DMG	1 Nw Austin, MN	LARGE BRANCHES DOWN
Aug 18, 4:58 PM CDT	TSTM WND DMG	1 S Mapleview, MN	LARGE BRANCHES DOWN.
Aug 18, 5:00 PM CDT	TSTM WND DMG	Hayfield, MN	GAZEBO MOVED AND LARGE TREE DOWN. TIME ESTIMATED FROM RADAR.
Aug 18, 5:10 PM CDT	TSTM WND GST 40	Hayfield, MN
Aug 18, 5:11 PM CDT	TSTM WND GST 50	Hayfield, MN	BRANCHES BREAKING
Aug 18, 5:11 PM CDT	TSTM WND GST 50	Hayfield, MN	BRANCHES BREAKING.
Aug 18, 5:11 PM CDT	HAIL 0.25	Hayfield, MN
Aug 18, 5:17 PM CDT	HAIL 0.25	Kasson, MN
Aug 18, 5:23 PM CDT	TSTM WND GST 60	Hayfield, MN

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
Aug 18, 2:46 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 117 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: 133 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 1165 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

257 
WUUS53 KARX 182129
SVRARX
MNC039-099-182230-
/O.NEW.KARX.SV.W.0071.160818T2129Z-160818T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
429 PM CDT THU AUG 18 2016

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MOWER COUNTY IN SOUTHEASTERN MINNESOTA...
  DODGE COUNTY IN SOUTHEASTERN MINNESOTA...

* UNTIL 530 PM CDT

* AT 425 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM OWATONNA TO NEAR ALBERT LEA...MOVING EAST AT 35 MPH.

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

  SOURCE...LAW ENFORCEMENT. THESE STORMS HAVE PRODUCED 50 TO 60 MPH
           WINDS NEAR WASECA AND ALSO WIND DAMAGE.  

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

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CLAREMONT AROUND 445 PM CDT. 
  WEST CONCORD AROUND 450 PM CDT. 
  DODGE CENTER AROUND 455 PM CDT.
  MANTORVILLE...RAMSEY AND HAYFIELD AROUND 500 PM CDT.   
  AUSTIN AND LYLE AND BROWNSDALE AROUND 510 PM CDT. 
  ADAMS AROUND 525 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY.

&&

LAT...LON 4420 9304 4419 9268 4350 9269 4351 9305
TIME...MOT...LOC 2125Z 282DEG 32KT 4407 9322 4372 9344 

HAIL...0.88IN
WIND...60MPH
 
$$

DAB

4 follow-up statements

460 
WWUS53 KARX 182142
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
442 PM CDT THU AUG 18 2016

MNC039-099-182230-
/O.CON.KARX.SV.W.0071.000000T0000Z-160818T2230Z/
MOWER MN-DODGE MN-
442 PM CDT THU AUG 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR MOWER AND DODGE COUNTIES...

AT 439 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR CLAREMONT TO NEAR HAYWARD...MOVING EAST AT 45 MPH.

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

SOURCE...PUBLIC. THIS STORM HAS A HISTORY OF WINDS TO 60 MPH AND WIND DAMAGE. 

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

THESE SEVERE STORMS WILL BE NEAR...
  CLAREMONT AROUND 445 PM CDT. 
  WEST CONCORD AROUND 450 PM CDT. 
  DODGE CENTER AND HAYFIELD AROUND 455 PM CDT. 
  AUSTIN...MANTORVILLE...KASSON AND RAMSEY AROUND 500 PM CDT. 
  BROWNSDALE AND LYLE AROUND 505 PM CDT. 
  ROSE CREEK AROUND 510 PM CDT. 
  ADAMS AROUND 520 PM CDT. 

RADAR INDICATES THAT THE STRONGEST WINDS COULD BE IN FAR SOUTHERN DODGE AND 
NORTHERN MOWER COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STRONG WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING ARE OCCURRING WITH THESE STORMS.
MOVE INDOORS IMMEDIATELY. 
&&

LAT...LON 4420 9304 4419 9268 4350 9269 4351 9305
TIME...MOT...LOC 2139Z 279DEG 37KT 4405 9305 4370 9327 

HAIL...0.88IN
WIND...60MPH
 
$$

DAB

751 
WWUS53 KARX 182202
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
502 PM CDT THU AUG 18 2016

MNC039-099-182230-
/O.CON.KARX.SV.W.0071.000000T0000Z-160818T2230Z/
MOWER MN-DODGE MN-
502 PM CDT THU AUG 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR MOWER AND DODGE COUNTIES...

AT 500 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR DODGE CENTER TO NEAR BROWNSDALE TO NEAR ROSE
CREEK...MOVING EAST AT 50 MPH.

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

SOURCE...LAW ENFORCEMENT REPORTS POWER LINE DAMAGE AND SOME BRANCES
         DOWN IN AUSTIN AND THE NORTHWEST PORTION OF MOWER COUNTY. 

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

THESE SEVERE STORMS WILL BE NEAR...
  ADAMS AROUND 510 PM CDT. 

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
LANSING...WASIOJA...CONCORD...MAYVILLE AND DEXTER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4420 9304 4419 9268 4350 9269 4351 9305
TIME...MOT...LOC 2200Z 285DEG 44KT 4400 9280 4378 9277 4361 9290 

HAIL...0.88IN
WIND...60MPH
 
$$

DAB

300 
WWUS53 KARX 182213
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
513 PM CDT THU AUG 18 2016

MNC039-099-182230-
/O.CON.KARX.SV.W.0071.000000T0000Z-160818T2230Z/
MOWER MN-DODGE MN-
513 PM CDT THU AUG 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR MOWER AND DODGE COUNTIES...

AT 511 PM CDT...STRONG TO SEVERE THUNDERSTORMS WERE
CONTINUINGTOAFFECT MOST OF MOWER AND DODGE COUNTY...MOVING EAST AT
35 MPH.

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

SOURCE...LAW ENFORCEMENT REPORTS SOME TREE DEBRIS AND WIND GUSTS IN
         THE 50 MPH RANGE AT HAYFIELD AT 510 PM. 

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

STORMS WILL CONTINUNE IN THE MOWER AND DODGE COUNTY AREA FOR ANOTHER
30 MINUTES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4408 9304 4407 9268 4350 9269 4351 9305
TIME...MOT...LOC 2211Z 281DEG 32KT 4396 9290 4377 9268 4360 9281 

HAIL...0.88IN
WIND...60MPH
 
$$

DAB

726 
WWUS53 KARX 182226
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
526 PM CDT THU AUG 18 2016

MNC039-099-182230-
/O.CON.KARX.SV.W.0071.000000T0000Z-160818T2230Z/
MOWER MN-DODGE MN-
526 PM CDT THU AUG 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR WESTERN MOWER AND SOUTHEASTERN DODGE COUNTIES...

AT 523 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR HAYFIELD TO NEAR GRAND MEADOW TO ADAMS...MOVING
EAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...LAW ENFORCEMENT REPORTED 60 MPH WINDS IN HAYFIELD AT 523
         PM.  

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

PERSONS IN THE EASTERN PORTION OF DODGE COUNTY AND SOUTHERN MOWER
COUNTY WILL BE AFFECTED THROUGH 530 PM. 

THE WARNING WILL THEN BE ALLOWED TO EXPIRE AT 530 PM AS STORMS ARE
SHIFTING EAST. STORMS WILL CONTINUE THROUGH 6 PM BEFORE MOVING OUT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4397 9289 4407 9268 4350 9269 4351 9305
      4361 9305 4375 9288
TIME...MOT...LOC 2223Z 282DEG 32KT 4394 9279 4375 9257 4358 9270 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

DAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 18, 3:57 PM CDT	Special Weather Statement	ARX	Dodge, Mower, Olmsted	93 min
Aug 18, 4:59 PM CDT	Severe Thunderstorm Warning	ARX	Fillmore, Mower, Olmsted	61 min
Aug 18, 5:06 PM CDT	Areal Flood Advisory	ARX	Mower	54 min
Aug 18, 5:50 PM CDT	Severe Thunderstorm Warning	ARX	Fillmore, Houston, Winona	70 min
Aug 18, 5:51 PM CDT	Special Weather Statement	ARX	Houston, Winona	54 min
Aug 18, 6:01 PM CDT	Severe Thunderstorm Warning	ARX	Fillmore	29 min
Aug 18, 6:25 PM CDT	Special Weather Statement	ARX	Houston	50 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2016 Every severe thunderstorm warning in 2016

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.