Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 1, NWS Twin Cities, MN

March 6, 2017Redwood County, Renville County, Sibley County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Mar 6, 2017, 3:47 PM CST for Redwood County, Renville County, Sibley County, Minnesota. It was in force for 43 min. 2 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, 3:47 PM CST (21:47 UTC)
Expired
Mar 6, 2017, 4:30 PM CST
In force
43 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Redwood County, MN, Renville County, MN, Sibley County, MN

The radar

The Minneapolis radar (KMPX), 101 km from the middle of the area, began a volume at 21:48 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

TimeReportWhereRemark
Mar 6, 3:50 PM CSTHAIL 1Morton, MNREPORTED AT COUNTY ROAD 65, BETWEEN REDWOOD FALLS AND MORTON, MN.
Mar 6, 4:00 PM CSTHAIL 11 E Redwood Falls, 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, 9.8 hours before the alert went out and 98 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.

847 
WUUS53 KMPX 062147
SVRMPX
MNC127-129-143-062230-
/O.NEW.KMPX.SV.W.0001.170306T2147Z-170306T2230Z/

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

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northeastern Redwood County in southwestern Minnesota...
  Northwestern Sibley County in central Minnesota...
  Eastern Renville County in central Minnesota...

* Until 430 PM CST

* At 347 PM CST, a severe thunderstorm was located near Redwood Falls
  Airport, or near Redwood Falls, moving northeast at 55 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

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

* This severe thunderstorm will be near,
  Franklin and Morton around 355 PM CST. 
  Hector and Buffalo Lake around 415 PM CST. 
  Stewart around 420 PM CST. 

Other locations impacted by this severe thunderstorm include Bechyn,
Delhi, Clements, North Redwood, Lakeside and Redwood Falls Airport.

This includes the following highways...
 U.S. Highway 212 between mile markers 76 and 101.
 U.S. Highway 71 between mile markers 67 and 97.

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 south
central, central and southwestern Minnesota.

LAT...LON 4489 9487 4489 9450 4488 9449 4468 9450
      4449 9484 4449 9486 4448 9487 4437 9506
      4456 9528
TIME...MOT...LOC 2147Z 227DEG 49KT 4449 9507 

HAIL...1.00IN
WIND...60MPH
 
$$
2 follow-up statements
623 
WWUS53 KMPX 062204
SVSMPX

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

MNC127-062214-
/O.CAN.KMPX.SV.W.0001.000000T0000Z-170306T2230Z/
Redwood MN-
404 PM CST MON MAR 6 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN REDWOOD COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 4489 9487 4489 9450 4488 9449 4468 9450
      4449 9484 4449 9486 4452 9488 4465 9497
      4474 9506
TIME...MOT...LOC 2204Z 227DEG 49KT 4465 9483 

$$

MNC129-143-062230-
/O.CON.KMPX.SV.W.0001.000000T0000Z-170306T2230Z/
Sibley MN-Renville MN-
404 PM CST MON MAR 6 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CST
FOR NORTHWESTERN SIBLEY AND EASTERN RENVILLE COUNTIES...

At 404 PM CST, a severe thunderstorm was located 8 miles southwest of
Hector, or 15 miles northeast of Redwood Falls, moving northeast at
55 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

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

This severe storm will be near...
  Hector and Buffalo Lake around 415 PM CST. 

Other locations impacted by this severe thunderstorm include
Lakeside.

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 south central
and central Minnesota.

LAT...LON 4489 9487 4489 9450 4488 9449 4468 9450
      4449 9484 4449 9486 4452 9488 4465 9497
      4474 9506
TIME...MOT...LOC 2204Z 227DEG 49KT 4465 9483 

HAIL...1.00IN
WIND...60MPH
 
$$
670 
WWUS53 KMPX 062222
SVSMPX

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

MNC129-143-062231-
/O.EXP.KMPX.SV.W.0001.000000T0000Z-170306T2230Z/
Sibley MN-Renville MN-
422 PM CST MON MAR 6 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN SIBLEY AND
EASTERN RENVILLE COUNTIES WILL EXPIRE AT 430 PM CST...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

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

LAT...LON 4489 9487 4489 9450 4488 9449 4468 9450
      4449 9484 4449 9486 4452 9488 4465 9497
      4474 9506
TIME...MOT...LOC 2221Z 227DEG 49KT 4480 9460 

$$

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, 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, 4:41 PM CSTSevere Thunderstorm WarningMPXMcLeod, Meeker, Wright34 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.