Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 96, NWS Twin Cities, MN

July 4, 2017Kandiyohi County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 4, 2017, 6:18 PM CDT for Kandiyohi County, Minnesota. It was in force for 42 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 4, 2017, 6:18 PM CDT (23:18 UTC)
Expired
Jul 4, 2017, 7:00 PM CDT
In force
42 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

County Kandiyohi County, MN

The radar

The Minneapolis radar (KMPX), 128 km from the middle of the area, began a volume at 23:21 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

TimeReportWhereRemark
Jul 4, 6:20 PM CDTHAIL 1.757 Wnw New London, MNHAIL BEGAN AROUND 6 PM CDT AND CONTINUES THROUGH REPORT TIME AT 6:20 PM. LARGEST STONES WERE GOLF BALL SIZED.
Jul 4, 6:30 PM CDTHAIL 26 E Sunburg, MNPHOTO SUBMITTED VIA FACEBOOK.
Jul 4, 6:45 PM CDTHAIL 26 E Sunburg, MNPICTURE SUBMITTED VIA FACEBOOK.
Jul 4, 6:48 PM CDTHAIL 1.255 Ese Sunburg, MNPICTURE MESSAGED ON FACEBOOK TO FSD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.3 hours before the alert went out and 125 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2017-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 447 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2017-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
447 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
876 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

847 
WUUS53 KMPX 042318
SVRMPX
MNC067-050000-
/O.NEW.KMPX.SV.W.0096.170704T2318Z-170705T0000Z/

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

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northern Kandiyohi County in central Minnesota...

* Until 700 PM CDT

* At 617 PM CDT, severe thunderstorms were located along a line
  extending from near Norway Lake to near Spicer to Priam, moving
  northeast 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. 

* Severe thunderstorms will be near,
  Spicer around 650 PM CDT. 
  New London around 655 PM CDT. 

Other locations impacted by these severe thunderstorms include Norway
Lake, Green Lake, Regal, Willmar Airport, Priam and Pennock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4541 9514 4535 9518 4522 9517 4507 9525
      4502 9513 4520 9485 4541 9481
TIME...MOT...LOC 2317Z 214DEG 5KT 4534 9506 4523 9504 4509 9516 

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

BORGHOFF
3 follow-up statements
525 
WWUS53 KMPX 042329
SVSMPX

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

MNC067-050000-
/O.CON.KMPX.SV.W.0096.000000T0000Z-170705T0000Z/
Kandiyohi MN-
629 PM CDT TUE JUL 4 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTHERN KANDIYOHI COUNTY...

At 628 PM CDT, severe thunderstorms were located along a line
extending from near Norway Lake to near Spicer to near Willmar
Airport, moving northeast at 5 mph.

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

SOURCE...Trained weather spotters. At 620 PM, golf ball sized hail 
         was reported 7 miles west northwest of New London. The 
         storm is nearly stationary and appears to be varying in 
         intensity. 

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. 

These severe storms will be near...
  New London and Spicer around 700 PM CDT. 

Other locations impacted by these severe thunderstorms include Norway
Lake, Green Lake, Regal, Willmar Airport, Priam and Pennock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms are producing large hail. SEEK SHELTER NOW inside a
sturdy structure and stay away from windows.

&&

LAT...LON 4541 9514 4535 9518 4522 9517 4507 9525
      4502 9513 4520 9485 4541 9481
TIME...MOT...LOC 2328Z 236DEG 4KT 4533 9508 4524 9503 4510 9513 

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

BORGHOFF
572 
WWUS53 KMPX 042340
SVSMPX

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

MNC067-050000-
/O.CON.KMPX.SV.W.0096.000000T0000Z-170705T0000Z/
Kandiyohi MN-
640 PM CDT TUE JUL 4 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTHWESTERN KANDIYOHI COUNTY...

At 640 PM CDT, a severe thunderstorm was located over Norway Lake, or
12 miles north of Willmar, and is nearly stationary.

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...
Norway Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.

&&

LAT...LON 4541 9502 4525 9496 4523 9517 4535 9518
      4538 9516
TIME...MOT...LOC 2340Z 336DEG 1KT 4531 9510 

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

BORGHOFF
856 
WWUS53 KMPX 042355
SVSMPX

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

MNC067-050005-
/O.EXP.KMPX.SV.W.0096.000000T0000Z-170705T0000Z/
Kandiyohi MN-
655 PM CDT TUE JUL 4 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN KANDIYOHI COUNTY
WILL EXPIRE AT 700 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning will be allowed to expire.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
The Twin Cities.

LAT...LON 4541 9502 4525 9496 4523 9517 4535 9518
      4538 9516
TIME...MOT...LOC 2355Z 214DEG 5KT 4532 9509 

$$

BORGHOFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 5:55 PM CDTSpecial Weather StatementMPXKandiyohi35 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2017Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.