Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 98, NWS Twin Cities, MN

July 4, 2017Chippewa County, Swift County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 4, 2017, 7:32 PM CDT for Chippewa County, Swift County, Minnesota. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 4, 2017, 7:32 PM CDT (00:32 UTC)
Expired: Jul 4, 2017, 8:15 PM CDT
In force: 43 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Chippewa County, MN, Swift County, MN

The radar

The Minneapolis radar (KMPX), 147 km from the middle of the area, began a volume at 00:34 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.5 hours before the alert went out and 145 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: 1981 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1379 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 96 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

048 
WUUS53 KMPX 050032
SVRMPX
MNC023-151-050115-
/O.NEW.KMPX.SV.W.0098.170705T0032Z-170705T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
732 PM CDT TUE JUL 4 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northeastern Chippewa County in west central Minnesota...
  Southeastern Swift County in west central Minnesota...

* Until 815 PM CDT

* At 729 PM CDT, a severe thunderstorm was located near Kerkhoven, or
  17 miles west of Willmar, moving east at 5 mph.

  HAZARD...60 mph wind gusts and half dollar size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Kerkhoven and Murdock. 

This includes U.S. Highway 12 between mile markers 54 and 63.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4523 9550 4525 9526 4524 9525 4506 9525
      4509 9551
TIME...MOT...LOC 0029Z 274DEG 7KT 4515 9539 

HAIL...1.25IN
WIND...60MPH
 
$$

BORGHOFF

2 follow-up statements

973 
WWUS53 KMPX 050044
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
744 PM CDT TUE JUL 4 2017

MNC023-151-050115-
/O.CON.KMPX.SV.W.0098.000000T0000Z-170705T0115Z/
Chippewa MN-Swift MN-
744 PM CDT TUE JUL 4 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHEASTERN CHIPPEWA AND SOUTHEASTERN SWIFT COUNTIES...

At 743 PM CDT, a severe thunderstorm was located near Kerkhoven, or
17 miles west of Willmar, and is nearly stationary.

HAZARD...60 mph wind gusts and half dollar size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Kerkhoven and Murdock. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4523 9550 4525 9526 4524 9525 4506 9525
      4509 9551
TIME...MOT...LOC 0043Z 245DEG 3KT 4516 9539 

HAIL...1.25IN
WIND...60MPH
 
$$

BORGHOFF

606 
WWUS53 KMPX 050101
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
801 PM CDT TUE JUL 4 2017

MNC023-151-050115-
/O.CON.KMPX.SV.W.0098.000000T0000Z-170705T0115Z/
Chippewa MN-Swift MN-
801 PM CDT TUE JUL 4 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHEASTERN CHIPPEWA AND SOUTHEASTERN SWIFT COUNTIES...

At 801 PM CDT, a severe thunderstorm was located near Kerkhoven, or
16 miles west of Willmar, moving south at 5 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees. 

Locations impacted include...
Kerkhoven and Murdock. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay 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 4523 9550 4525 9526 4524 9525 4506 9525
      4509 9551
TIME...MOT...LOC 0101Z 347DEG 5KT 4511 9538 

HAIL...1.50IN
WIND...60MPH
 
$$

BORGHOFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 7:07 PM CDT	Special Weather Statement	MPX	Pope	23 min
Jul 4, 7:08 PM CDT	Special Weather Statement	MPX	Renville	37 min
Jul 4, 7:19 PM CDT	Severe Thunderstorm Warning	MPX	Renville	41 min
Jul 4, 8:15 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa	45 min
Jul 4, 9:25 PM CDT	Severe Thunderstorm Warning	MPX	Meeker, Wright	50 min
Jul 4, 9:31 PM CDT	Special Weather Statement	MPX	Freeborn	44 min
Jul 4, 10:05 PM CDT	Severe Thunderstorm Warning	MPX	Wright	55 min
Jul 4, 11:14 PM CDT	Special Weather Statement	MPX	Hennepin	31 min
Jul 4, 11:37 PM CDT	Special Weather Statement	MPX	Hennepin	53 min
Jul 5, 12:05 AM CDT	Special Weather Statement	MPX	McLeod	40 min
Jul 5, 12:08 AM CDT	Special Weather Statement	MPX	Anoka	52 min
Jul 5, 2:51 AM CDT	Special Weather Statement	MPX	Douglas, Todd	39 min
Jul 5, 8:17 AM CDT	Special Weather Statement	MPX	Meeker	43 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2017 Every severe thunderstorm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.