Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 5, NWS Twin Cities, MN

March 6, 2017McLeod County, Meeker County, Wright County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Mar 6, 2017, 4:41 PM CST for McLeod County, Meeker County, Wright County, Minnesota. It was in force for 34 min. 10 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
Mar 6, 2017, 4:41 PM CST (22:41 UTC)
Expired
Mar 6, 2017, 5:15 PM CST
In force
34 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties McLeod County, MN, Meeker County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 62 km from the middle of the area, began a volume at 22:43 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
Mar 6, 4:41 PM CSTHAIL 1Hutchinson, MN.
Mar 6, 4:42 PM CSTHAIL 0.55 Sw Dassel, MN.
Mar 6, 4:42 PM CSTHAIL 15 Sw Dassel, MN.
Mar 6, 4:45 PM CSTHAIL 1.56 Wnw Winsted, MN.
Mar 6, 4:53 PM CSTHAIL 13 Se Dassel, MN.
Mar 6, 4:56 PM CSTHAIL 1.751 Ese Cokato, MN.
Mar 6, 5:00 PM CSTHAIL 1.75Cokato, MN.
Mar 6, 5:00 PM CSTHAIL 4Cokato, MNWITH PHOTO.
Mar 6, 5:15 PM CSTHAIL 1.754 Ssw Becker, MNCAR DENTS ALSO REPORTED.
Mar 6, 5:22 PM CSTHAIL 0.886 N Howard Lake, 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.

IssuedProductOfficeLasted
Mar 6, 2:43 PM CSTTornado WatchSPC7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.7 hours before the alert went out and 60 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 2017-03-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2017-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 401 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
622 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
401 m²/s²
0-3 km storm-relative helicity
365 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

416 
WUUS53 KMPX 062241
SVRMPX
MNC085-093-171-062315-
/O.NEW.KMPX.SV.W.0005.170306T2241Z-170306T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
441 PM CST MON MAR 6 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Wright County in central Minnesota...
  Eastern Meeker County in central Minnesota...
  Northwestern McLeod County in central Minnesota...

* Until 515 PM CST

* At 440 PM CST, severe thunderstorms were located along a line
  extending from near Darwin to near Dassel to Hutchinson, moving
  northeast at 55 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,
  Dassel around 445 PM CST. 
  Cokato around 450 PM CST. 
  Annandale and Howard Lake around 500 PM CST. 
  Maple Lake around 505 PM CST. 
  Montrose and Clearwater around 510 PM CST. 
  Buffalo and Monticello around 515 PM CST. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 1000 PM CST for central
Minnesota.

LAT...LON 4538 9396 4539 9392 4535 9388 4529 9377
      4511 9377 4481 9443 4498 9436 4514 9455
      4528 9437 4528 9428 4532 9421 4531 9414
      4542 9405
TIME...MOT...LOC 2240Z 227DEG 47KT 4513 9442 4502 9430 4488 9437 

HAIL...1.25IN
WIND...60MPH
 
$$
1 follow-up statement
428 
WWUS53 KMPX 062258
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
458 PM CST MON MAR 6 2017

MNC085-093-062307-
/O.CAN.KMPX.SV.W.0005.000000T0000Z-170306T2315Z/
Meeker MN-McLeod MN-
458 PM CST MON MAR 6 2017

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MEEKER AND
NORTHWESTERN MCLEOD COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 1000 PM CST for central
Minnesota.

LAT...LON 4538 9396 4539 9392 4535 9388 4529 9377
      4511 9377 4497 9408 4499 9426 4532 9421
      4530 9417 4531 9414 4535 9409 4542 9405
TIME...MOT...LOC 2257Z 227DEG 47KT 4528 9419 4517 9407 4503 9414 

$$

MNC171-062315-
/O.CON.KMPX.SV.W.0005.000000T0000Z-170306T2315Z/
Wright MN-
458 PM CST MON MAR 6 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CST
FOR WRIGHT COUNTY...

At 457 PM CST, severe thunderstorms were located along a line
extending from South Haven to near Rassat to near Smith Lake, moving
northeast at 55 mph.

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

SOURCE...Radar indicated. 1.5 inch hail has been reported in 
         southwest Wright county. 

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...
  Annandale around 500 PM CST. 
  Maple Lake around 505 PM CST. 
  Montrose and Clearwater around 510 PM CST. 
  Buffalo and Monticello around 515 PM CST. 

Other locations impacted by these severe thunderstorms include
Enfield, Buffalo Airport, Silver Creek, French Lake, Waverly, Rassat,
Hasty, Smith Lake and South Haven.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 1000 PM CST for central
Minnesota.

LAT...LON 4538 9396 4539 9392 4535 9388 4529 9377
      4511 9377 4497 9408 4499 9426 4532 9421
      4530 9417 4531 9414 4535 9409 4542 9405
TIME...MOT...LOC 2257Z 227DEG 47KT 4528 9419 4517 9407 4503 9414 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 6, 4:04 AM CSTWind AdvisoryMPXAnoka, Benton, Blue Earth, Brown, Carver, Chippewa and 36 more60 hr
Mar 6, 3:47 PM CSTSevere Thunderstorm WarningMPXRedwood, Renville, Sibley43 min
Mar 6, 4:10 PM CSTSevere Thunderstorm WarningMPXBlue Earth, Brown, Watonwan35 min
Mar 6, 4:28 PM CSTSevere Thunderstorm WarningMPXBenton, Morrison, Stearns47 min
Mar 6, 4:32 PM CSTSevere Thunderstorm WarningMPXFaribault, Martin43 min
Mar 6, 4:50 PM CSTTornado WarningMPXWright25 min
Mar 6, 4:54 PM CSTSevere Thunderstorm WarningMPXFaribault, Freeborn21 min
Mar 6, 5:09 PM CSTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Freeborn, Steele, Waseca36 min
Mar 6, 5:11 PM CSTSevere Thunderstorm WarningMPXSherburne, Wright34 min
Mar 6, 5:26 PM CSTTornado WarningMPXSherburne, Wright20 min
Mar 6, 5:42 PM CSTSevere Thunderstorm WarningMPXFreeborn, Steele, Waseca33 min
Mar 6, 5:44 PM CSTTornado WarningMPXIsanti, Mille Lacs, Sherburne31 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.