Alert archive / Minnesota / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 96, NWS Twin Cities, MN

July 17, 20154 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 17, 2015, 9:44 PM CDT for 4 counties in Minnesota. It was in force for 61 min. 6 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, 9:44 PM CDT (02:44 UTC)
Expired: Jul 17, 2015, 10:45 PM CDT
In force: 61 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 70.0 mph

Counties Chippewa County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Swift County, MN

The radar

The Minneapolis radar (KMPX), 163 km from the middle of the area, began a volume at 02:48 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, 10:13 PM CDT	TSTM WND GST 63	Montevideo, MN
Jul 17, 10:14 PM CDT	TSTM WND GST 61	Benson, MN
Jul 17, 10:14 PM CDT	TSTM WND GST 63	Montevideo, MN
Jul 17, 10:20 PM CDT	TSTM WND DMG	Montevideo, MN	CONSTRUCTION BARRICADES BLOWN THREW THE AIR APPROXIMATELY 20 FEET. REPORTED VIA TWITTER.
Jul 17, 10:38 PM CDT	TSTM WND DMG	Willmar, MN	MEDIUM SIZE TREE TOPPLED.
Jul 17, 10:55 PM CDT	TSTM WND GST 51	Willmar, 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

Minneapolis, MN (KMPX), launched 00:00Z, 2.7 hours before the alert went out and 161 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: 888 J/kg
Mixed-layer CIN: -162 J/kg
Mixed-layer LCL: 1752 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

870 
WUUS53 KMPX 180244
SVRMPX
MNC023-067-073-151-180345-
/O.NEW.KMPX.SV.W.0096.150718T0244Z-150718T0345Z/

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN KANDIYOHI COUNTY IN CENTRAL MINNESOTA...
  CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA...
  SWIFT COUNTY IN WEST CENTRAL MINNESOTA...
  SOUTHEASTERN LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 1045 PM CDT

* AT 944 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR CLONTARF TO MILAN TO NEAR DAWSON...MOVING EAST
  AT 50 MPH.

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

  SOURCE...LAW ENFORCEMENT. 

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

* SEVERE THUNDERSTORMS WILL BE NEAR...
  BENSON AROUND 950 PM CDT.
  LAKE HASSEL AROUND 955 PM CDT.
  MONTEVIDEO AROUND 1005 PM CDT.
  KERKHOVEN AND MURDOCK AROUND 1020 PM CDT.
  RAYMOND AROUND 1040 PM CDT.
  WILLMAR AND NEW LONDON AROUND 1045 PM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
MONTEVIDEO AIRPORT...BENSON AIRPORT...NORWAY LAKE...WILLMAR
AIRPORT...HAGEN...DANVERS...ASBURY...CLONTARF...PRIAM AND PENNOCK.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 U.S. HIGHWAY 12 BETWEEN MILE MARKERS 30 AND 74.
 U.S. HIGHWAY 212 BETWEEN MILE MARKERS 14 AND 39.
 U.S. HIGHWAY 75 NEAR MILE MARKER 102.
 U.S. HIGHWAY 8 IN MINNESOTA NEAR MILE MARKER 6.
 U.S. HIGHWAY 59 BETWEEN MILE MARKERS 106 AND 107.
 U.S. HIGHWAY 71 BETWEEN MILE MARKERS 126 AND 144.

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.

&&

LAT...LON 4507 9602 4540 9578 4541 9486 4528 9495
      4489 9514 4490 9569 4493 9573 4490 9575
      4490 9622
TIME...MOT...LOC 0244Z 256DEG 42KT 4536 9573 4509 9592 4495 9611 

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

JLT

2 follow-up statements

613 
WWUS53 KMPX 180302
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1002 PM CDT FRI JUL 17 2015

MNC023-067-073-151-180345-
/O.CON.KMPX.SV.W.0096.000000T0000Z-150718T0345Z/
KANDIYOHI MN-CHIPPEWA MN-SWIFT MN-LAC QUI PARLE MN-
1002 PM CDT FRI JUL 17 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR WESTERN KANDIYOHI...CHIPPEWA...SWIFT AND SOUTHEASTERN LAC QUI
PARLE COUNTIES...

AT 1002 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM SWIFT FALLS TO 9 MILES EAST OF BIG BEND CITY TO NEAR
BOYD...MOVING EAST AT 60 MPH.

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

SOURCE...LAW ENFORCEMENT. 

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

THESE SEVERE STORMS WILL BE NEAR...
  LAKE HASSEL AROUND 1005 PM CDT.
  KERKHOVEN AND MURDOCK AROUND 1015 PM CDT.
  WILLMAR AND MAYNARD AROUND 1025 PM CDT.
  CLARA CITY AROUND 1030 PM CDT.
  NEW LONDON AROUND 1035 PM CDT.
  RAYMOND AND PRINSBURG AROUND 1040 PM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
MONTEVIDEO AIRPORT...BENSON AIRPORT...NORWAY LAKE...WILLMAR
AIRPORT...HAGEN...DANVERS...ASBURY...CLONTARF...PRIAM AND PENNOCK.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 U.S. HIGHWAY 12 BETWEEN MILE MARKERS 30 AND 74.
 U.S. HIGHWAY 212 BETWEEN MILE MARKERS 14 AND 39.
 U.S. HIGHWAY 75 NEAR MILE MARKER 102.
 U.S. HIGHWAY 8 IN MINNESOTA NEAR MILE MARKER 6.
 U.S. HIGHWAY 59 BETWEEN MILE MARKERS 106 AND 107.
 U.S. HIGHWAY 71 BETWEEN MILE MARKERS 126 AND 144.

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.

&&

LAT...LON 4507 9602 4540 9578 4541 9486 4528 9495
      4489 9514 4490 9569 4493 9573 4490 9575
      4490 9622
TIME...MOT...LOC 0302Z 258DEG 50KT 4539 9547 4513 9558 4492 9594 

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

JLT

129 
WWUS53 KMPX 180327
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1027 PM CDT FRI JUL 17 2015

MNC023-067-073-151-180345-
/O.CON.KMPX.SV.W.0096.000000T0000Z-150718T0345Z/
KANDIYOHI MN-CHIPPEWA MN-SWIFT MN-LAC QUI PARLE MN-
1027 PM CDT FRI JUL 17 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR WESTERN KANDIYOHI...CHIPPEWA...EASTERN SWIFT AND EAST CENTRAL LAC
QUI PARLE COUNTIES...

AT 1027 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR BELGRADE TO PENNOCK TO NEAR ASBURY...MOVING EAST
AT 45 MPH.

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

SOURCE...LAW ENFORCEMENT. 

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

THESE SEVERE STORMS WILL BE NEAR...
  WILLMAR AROUND 1035 PM CDT.
  NEW LONDON...RAYMOND AND PRINSBURG AROUND 1045 PM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
MONTEVIDEO AIRPORT...BENSON AIRPORT...NORWAY LAKE...WILLMAR
AIRPORT...HAGEN...DANVERS...ASBURY...CLONTARF...PRIAM AND PENNOCK.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 U.S. HIGHWAY 12 BETWEEN MILE MARKERS 35 AND 74.
 U.S. HIGHWAY 212 BETWEEN MILE MARKERS 30 AND 39.
 U.S. HIGHWAY 8 IN MINNESOTA NEAR MILE MARKER 6.
 U.S. HIGHWAY 71 BETWEEN MILE MARKERS 126 AND 144.

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.

&&

LAT...LON 4519 9579 4540 9571 4541 9486 4528 9495
      4489 9514 4490 9569 4493 9573 4491 9574
      4496 9596
TIME...MOT...LOC 0327Z 267DEG 40KT 4543 9507 4517 9518 4496 9554 

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

MPG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 8:48 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Swift, Yellow Medicine	57 min
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, 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.