Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 6, NWS Twin Cities, MN

March 6, 2017Faribault County, Freeborn County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Mar 6, 2017, 4:54 PM CST for Faribault County, Freeborn County, Minnesota. It was in force for 21 min. 5 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, 4:54 PM CST (22:54 UTC)
Expired
Mar 6, 2017, 5:15 PM CST
In force
21 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Faribault County, MN, Freeborn County, MN

The radar

The Minneapolis radar (KMPX), 138 km from the middle of the area, began a volume at 22:56 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, 4:57 PM CSTHAIL 15 S Frost, MN.
Mar 6, 5:05 PM CSTHAIL 1.52 N Bricelyn, MN.
Mar 6, 5:20 PM CSTHAIL 11 W Conger, MN.
Mar 6, 5:20 PM CSTHAIL 11 Wsw Conger, MN.
Mar 6, 5:20 PM CSTHAIL 1.252 Nnw Bricelyn, 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, 10.9 hours before the alert went out and 138 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2017-03-06The 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.

672 
WUUS53 KMPX 062254
SVRMPX
MNC043-047-062315-
/O.NEW.KMPX.SV.W.0006.170306T2254Z-170306T2315Z/

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

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Southeastern Faribault County in south central Minnesota...
  Southwestern Freeborn County in south central Minnesota...

* Until 515 PM CST

* At 453 PM CST, a severe thunderstorm was located over Rake, or 21
  miles northwest of Forest City, moving northeast at 50 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,
  Bricelyn around 505 PM CST. 
  Alden, Mansfield and Conger around 515 PM CST. 

Other locations impacted by this severe thunderstorm include Walters,
Kiester and Baroda.

This includes Interstate 90 between mile markers 137 and 147.
 
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
Minnesota.

LAT...LON 4375 9365 4355 9340 4350 9355 4350 9396
TIME...MOT...LOC 2253Z 229DEG 45KT 4348 9393 

HAIL...1.00IN
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, 4:41 PM CSTSevere Thunderstorm WarningMPXMcLeod, Meeker, Wright34 min
Mar 6, 4:50 PM CSTTornado WarningMPXWright25 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.