Alert archive / Minnesota / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 93, NWS Twin Cities, MN

July 17, 20154 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 17, 2015, 8:48 PM CDT for 4 counties in Minnesota. It was in force for 57 min. 4 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 17, 2015, 8:48 PM CDT (01:48 UTC)
Expired: Jul 17, 2015, 9:45 PM CDT
In force: 57 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Possible
Hail: 1.75 in
Wind: 70.0 mph

Counties Chippewa County, MN, Lac qui Parle County, MN, Swift County, MN, Yellow Medicine County, MN

The radar

The Sioux Falls radar (KFSD), 176 km from the middle of the area, began a volume at 01:50 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 17, 9:31 PM CDT	TSTM WND DMG	Madison, MN	POWER OUTAGE IN TOWN.
Jul 17, 9:34 PM CDT	TSTM WND GST 54	Appleton, MN
Jul 17, 9:35 PM CDT	TSTM WND GST 61	2 Sse Madison, MN
Jul 17, 9:54 PM CDT	TSTM WND GST 62	1 Nw Boyd, 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
Jul 17, 8:39 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.8 hours before the alert went out and 178 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: 112 J/kg
Mixed-layer CIN: -341 J/kg
Mixed-layer LCL: 1497 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 236 m²/s²
0-3 km storm-relative helicity: 313 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

932 
WUUS53 KMPX 180148
SVRMPX
MNC023-073-151-173-180245-
/O.NEW.KMPX.SV.W.0093.150718T0148Z-150718T0245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
848 PM CDT FRI JUL 17 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA...
  NORTHWESTERN CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA...
  SOUTHWESTERN SWIFT COUNTY IN WEST CENTRAL MINNESOTA...
  LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 945 PM CDT

* AT 848 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR MILBANK TO NEAR TROY TO NEAR SANDY SHORE STATE
  PARK...MOVING SOUTHEAST AT 45 MPH.

  HAZARD...GOLF BALL SIZE HAIL AND 70 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
           DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES. EXPECT 
           CONSIDERABLE TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO 
           MOBILE HOMES...ROOFS AND OUTBUILDINGS. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  BELLINGHAM AND MARIETTA AROUND 915 PM CDT.
  APPLETON AROUND 930 PM CDT.
  MILAN AROUND 935 PM CDT.
  WATSON AROUND 945 PM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
LOUISBURG...SPRING CREEK...BURR...MONTEVIDEO AIRPORT...HAGEN...
FLORIDA CREEK WILDLIFE MANAGEMENT AREA...NASSAU...HOLLOWAY...ST. LEO
AND MADISON AIRPORT.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 U.S. HIGHWAY 12 NEAR MILE MARKER 18...AND BETWEEN MILE MARKERS 20
AND 23.
 U.S. HIGHWAY 212 BETWEEN MILE MARKERS 1 AND 36.
 U.S. HIGHWAY 75 BETWEEN MILE MARKERS 95 AND 127.
 U.S. HIGHWAY 59 BETWEEN MILE MARKERS 96 AND 143.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
THE TWIN CITIES.

&&

LAT...LON 4527 9645 4525 9629 4522 9627 4518 9610
      4524 9610 4524 9612 4526 9612 4529 9611
      4530 9609 4521 9558 4472 9583 4463 9632
      4463 9645
TIME...MOT...LOC 0148Z 292DEG 38KT 4530 9660 4503 9682 4485 9724 

TORNADO...POSSIBLE
HAIL...1.75IN
WIND...70MPH
 
$$

JLT

4 follow-up statements

128 
WWUS53 KMPX 180159
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
859 PM CDT FRI JUL 17 2015

MNC023-073-151-173-180245-
/O.CON.KMPX.SV.W.0093.000000T0000Z-150718T0245Z/
YELLOW MEDICINE MN-CHIPPEWA MN-SWIFT MN-LAC QUI PARLE MN-
859 PM CDT FRI JUL 17 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR NORTHWESTERN YELLOW MEDICINE...NORTHWESTERN CHIPPEWA...
SOUTHWESTERN SWIFT AND LAC QUI PARLE COUNTIES...

AT 858 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR BIG STONE CITY TO NEAR LA BOLT TO NEAR THOMAS...
MOVING EAST AT 45 MPH.

HAZARD...GOLF BALL SIZE HAIL AND 70 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
         DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES. EXPECT 
         CONSIDERABLE TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO 
         MOBILE HOMES...ROOFS AND OUTBUILDINGS. 

THESE SEVERE STORMS WILL BE NEAR...
  BELLINGHAM AND MARIETTA AROUND 915 PM CDT.
  APPLETON AROUND 930 PM CDT.
  MILAN AROUND 940 PM CDT.
  WATSON AROUND 945 PM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
LOUISBURG...SPRING CREEK...BURR...MONTEVIDEO AIRPORT...HAGEN...
FLORIDA CREEK WILDLIFE MANAGEMENT AREA...NASSAU...HOLLOWAY...ST. LEO
AND MADISON AIRPORT.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 U.S. HIGHWAY 12 NEAR MILE MARKER 18...AND BETWEEN MILE MARKERS 20
AND 23.
 U.S. HIGHWAY 212 BETWEEN MILE MARKERS 1 AND 36.
 U.S. HIGHWAY 75 BETWEEN MILE MARKERS 95 AND 127.
 U.S. HIGHWAY 59 BETWEEN MILE MARKERS 96 AND 143.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
THE TWIN CITIES.

&&

LAT...LON 4527 9645 4525 9629 4522 9627 4518 9610
      4524 9610 4524 9612 4526 9612 4529 9611
      4530 9609 4521 9558 4472 9583 4463 9632
      4463 9645
TIME...MOT...LOC 0158Z 292DEG 38KT 4527 9648 4500 9670 4482 9712 

TORNADO...POSSIBLE
HAIL...1.75IN
WIND...70MPH
 
$$

JLT

852 
WWUS53 KMPX 180208
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
908 PM CDT FRI JUL 17 2015

MNC023-073-151-173-180245-
/O.CON.KMPX.SV.W.0093.000000T0000Z-150718T0245Z/
YELLOW MEDICINE MN-CHIPPEWA MN-SWIFT MN-LAC QUI PARLE MN-
908 PM CDT FRI JUL 17 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR NORTHWESTERN YELLOW MEDICINE...NORTHWESTERN CHIPPEWA...
SOUTHWESTERN SWIFT AND LAC QUI PARLE COUNTIES...

AT 907 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR BIG STONE CITY TO NEAR LA BOLT TO 6 MILES
SOUTHEAST OF WATERTOWN...MOVING EAST AT 40 MPH.

HAZARD...GOLF BALL SIZE HAIL AND 70 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
         DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES. EXPECT 
         CONSIDERABLE TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO 
         MOBILE HOMES...ROOFS AND OUTBUILDINGS. 

THESE SEVERE STORMS WILL BE NEAR...
  BELLINGHAM AROUND 920 PM CDT.
  MARIETTA AROUND 925 PM CDT.
  MADISON AND APPLETON AROUND 940 PM CDT.
  DAWSON AND MILAN AROUND 945 PM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
LOUISBURG...SPRING CREEK...BURR...MONTEVIDEO AIRPORT...HAGEN...
FLORIDA CREEK WILDLIFE MANAGEMENT AREA...NASSAU...HOLLOWAY...ST. LEO
AND MADISON AIRPORT.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 U.S. HIGHWAY 12 NEAR MILE MARKER 18...AND BETWEEN MILE MARKERS 20
AND 23.
 U.S. HIGHWAY 212 BETWEEN MILE MARKERS 1 AND 36.
 U.S. HIGHWAY 75 BETWEEN MILE MARKERS 95 AND 127.
 U.S. HIGHWAY 59 BETWEEN MILE MARKERS 96 AND 143.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
THE TWIN CITIES.

&&

LAT...LON 4527 9645 4525 9629 4522 9627 4518 9610
      4524 9610 4524 9612 4526 9612 4529 9611
      4530 9609 4521 9558 4472 9583 4463 9632
      4463 9645
TIME...MOT...LOC 0207Z 285DEG 37KT 4526 9643 4500 9665 4483 9711 

TORNADO...POSSIBLE
HAIL...1.75IN
WIND...70MPH
 
$$

JLT

925 
WWUS53 KMPX 180217
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
917 PM CDT FRI JUL 17 2015

MNC023-073-151-173-180245-
/O.CON.KMPX.SV.W.0093.000000T0000Z-150718T0245Z/
YELLOW MEDICINE MN-CHIPPEWA MN-SWIFT MN-LAC QUI PARLE MN-
917 PM CDT FRI JUL 17 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR NORTHWESTERN YELLOW MEDICINE...NORTHWESTERN CHIPPEWA...
SOUTHWESTERN SWIFT AND LAC QUI PARLE COUNTIES...

AT 916 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR ODESSA TO NEAR REVILLO TO 6 MILES NORTHEAST OF
CASTLEWOOD...MOVING EAST AT 40 MPH.

HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE 
         TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE 
         HOMES...ROOFS AND OUTBUILDINGS. 

THESE SEVERE THUNDERSTORMS WILL REMAIN OVER MAINLY RURAL AREAS OF
NORTHWESTERN YELLOW MEDICINE...NORTHWESTERN CHIPPEWA...SOUTHWESTERN
SWIFT AND LAC QUI PARLE COUNTIES...INCLUDING THE FOLLOWING
LOCATIONS...LOUISBURG...SPRING CREEK...BURR...MONTEVIDEO AIRPORT...
HAGEN...FLORIDA CREEK WILDLIFE MANAGEMENT AREA...NASSAU...HOLLOWAY...
ST. LEO AND MADISON AIRPORT.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 U.S. HIGHWAY 12 NEAR MILE MARKER 18...AND BETWEEN MILE MARKERS 20
AND 23.
 U.S. HIGHWAY 212 BETWEEN MILE MARKERS 1 AND 36.
 U.S. HIGHWAY 75 BETWEEN MILE MARKERS 95 AND 127.
 U.S. HIGHWAY 59 BETWEEN MILE MARKERS 96 AND 143.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
THE TWIN CITIES.

&&

LAT...LON 4527 9645 4525 9629 4522 9627 4518 9610
      4524 9610 4524 9612 4526 9612 4529 9611
      4530 9609 4521 9558 4472 9583 4463 9632
      4463 9645
TIME...MOT...LOC 0216Z 285DEG 37KT 4523 9629 4497 9651 4481 9698 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
 
$$

JLT

243 
WWUS53 KMPX 180237
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
937 PM CDT FRI JUL 17 2015

MNC023-073-151-173-180245-
/O.CON.KMPX.SV.W.0093.000000T0000Z-150718T0245Z/
YELLOW MEDICINE MN-CHIPPEWA MN-SWIFT MN-LAC QUI PARLE MN-
937 PM CDT FRI JUL 17 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR NORTHWESTERN YELLOW MEDICINE...NORTHWESTERN CHIPPEWA...
SOUTHWESTERN SWIFT AND LAC QUI PARLE COUNTIES...

AT 937 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR APPLETON TO NEAR FLORIDA CREEK WILDLIFE
MANAGEMENT AREA TO NEAR CLEAR LAKE...MOVING EAST AT 45 MPH.

HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE 
         TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE 
         HOMES...ROOFS AND OUTBUILDINGS. 

LOCATIONS IMPACTED INCLUDE...
MONTEVIDEO...CANBY...MADISON...DAWSON...APPLETON...CLARKFIELD...
MILAN...WATSON...BOYD...BELLINGHAM...MARIETTA AND CERRO GORDO.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 U.S. HIGHWAY 12 NEAR MILE MARKER 18...AND BETWEEN MILE MARKERS 20
AND 23.
 U.S. HIGHWAY 212 BETWEEN MILE MARKERS 1 AND 36.
 U.S. HIGHWAY 75 BETWEEN MILE MARKERS 95 AND 127.
 U.S. HIGHWAY 59 BETWEEN MILE MARKERS 96 AND 143.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
THE TWIN CITIES.

&&

LAT...LON 4527 9645 4525 9629 4522 9627 4518 9610
      4524 9610 4524 9612 4526 9612 4529 9611
      4530 9609 4521 9558 4472 9583 4463 9632
      4463 9645
TIME...MOT...LOC 0237Z 292DEG 38KT 4515 9601 4489 9623 4473 9670 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
 
$$

JLT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 8:57 PM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	63 min
Jul 17, 9:28 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Pope, Stevens, Swift	47 min
Jul 17, 9:44 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Lac qui Parle, Swift	61 min
Jul 17, 10:17 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Renville, Yellow Medicine	28 min
Jul 17, 10:30 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Meeker, Stearns	45 min
Jul 17, 10:41 PM CDT	Severe Thunderstorm Warning	MPX	Redwood, Renville, Yellow Medicine	34 min
Jul 17, 11:03 PM CDT	Severe Thunderstorm Warning	MPX	Brown, McLeod, Nicollet, Redwood, Renville, Sibley	42 min
Jul 17, 11:09 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Meeker, Stearns, Wright	51 min
Jul 17, 11:44 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Carver, Le Sueur, McLeod, Nicollet, Scott and 1 more	46 min
Jul 17, 11:52 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin, Sherburne, Wright	38 min
Jul 18, 12:01 AM CDT	Tornado Warning	MPX	Carver, Hennepin, Wright	29 min
Jul 18, 12:26 AM CDT	Severe Thunderstorm Warning	MPX	Anoka, Dakota, Hennepin, Ramsey, Sherburne, Washington and 1 more	49 min
Jul 18, 12:29 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Le Sueur, Rice, Scott	31 min
Jul 18, 12:55 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice, Steele, Waseca, Washington	50 min
Jul 18, 1:06 AM CDT	Severe Thunderstorm Warning	MPX	Chisago, Washington	39 min
Jul 18, 1:25 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Renville, Yellow Medicine	34 min
Jul 18, 1:27 AM CDT	Severe Thunderstorm Warning	MPX	Goodhue	48 min
Jul 18, 1:42 AM CDT	Special Weather Statement	MPX	Anoka, Dakota, Hennepin, Ramsey	63 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 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.