Alert archive / Minnesota / Tornado Warnings in 2017

Tornado Warning 1, NWS Twin Cities, MN

March 6, 2017Wright County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Mar 6, 2017, 4:50 PM CST for Wright County, Minnesota. It was in force for 25 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: Mar 6, 2017, 4:50 PM CST (22:50 UTC)
Expired: Mar 6, 2017, 5:15 PM CST
In force: 25 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.25 in

County Wright County, MN

The radar

The Minneapolis radar (KMPX), 48 km from the middle of the area, began a volume at 22:49 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

Time	Report	Where	Remark
Mar 6, 4:56 PM CST	HAIL 1.75	1 Ese Cokato, MN	.
Mar 6, 5:00 PM CST	HAIL 1.75	Cokato, MN	.
Mar 6, 5:00 PM CST	HAIL 4	Cokato, MN	WITH PHOTO.
Mar 6, 5:22 PM CST	HAIL 0.88	6 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.

Issued	Product	Office	Lasted
Mar 6, 2:43 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.8 hours before the alert went out and 46 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: 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.

015 
WFUS53 KMPX 062250
TORMPX
MNC171-062315-
/O.NEW.KMPX.TO.W.0001.170306T2250Z-170306T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
450 PM CST MON MAR 6 2017

The National Weather Service in The Twin Cities has issued a

* Tornado Warning for...
  Southwestern Wright County in central Minnesota...

* Until 515 PM CST
    
* At 449 PM CST, a severe thunderstorm capable of producing a tornado
  was located near Cokato, or 11 miles northeast of Hutchinson,
  moving northeast at 50 mph.

  HAZARD...Tornado and half dollar size hail. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Howard Lake around 500 PM CST. 
  Maple Lake around 510 PM CST. 
  Buffalo around 515 PM CST. 

Other locations impacted by this tornadic thunderstorm include
Rassat and Smith Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4516 9382 4498 9417 4498 9425 4499 9426
      4505 9426 4527 9399
TIME...MOT...LOC 2249Z 226DEG 44KT 4501 9422 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

MPG

2 follow-up statements

303 
WWUS53 KMPX 062301
SVSMPX

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

MNC171-062315-
/O.CON.KMPX.TO.W.0001.000000T0000Z-170306T2315Z/
Wright MN-
501 PM CST MON MAR 6 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CST FOR
SOUTHWESTERN WRIGHT COUNTY...
    
At 500 PM CST, a severe thunderstorm capable of producing a tornado
was located over Smith Lake, or 12 miles southwest of Buffalo, moving
northeast at 50 mph.

HAZARD...Tornado and golf ball size hail. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This dangerous storm will be near...
  Buffalo and Maple Lake around 515 PM CST. 

Other locations impacted by this tornadic thunderstorm include
Rassa and Smith Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4516 9382 4502 9410 4509 9420 4527 9399
TIME...MOT...LOC 2300Z 225DEG 43KT 4510 9409 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

972 
WWUS53 KMPX 062313
SVSMPX

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

MNC171-062322-
/O.EXP.KMPX.TO.W.0001.000000T0000Z-170306T2315Z/
Wright MN-
513 PM CST MON MAR 6 2017

...THE TORNADO WARNING FOR SOUTHWESTERN WRIGHT COUNTY WILL EXPIRE AT
515 PM CST...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

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

Remember, a Severe Thunderstorm Warning still remains in effect for
northeast wright county until 545 PM.

LAT...LON 4516 9382 4502 9410 4509 9420 4527 9399
TIME...MOT...LOC 2312Z 226DEG 44KT 4519 9395 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 6, 4:04 AM CST	Wind Advisory	MPX	Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 36 more	60 hr
Mar 6, 3:47 PM CST	Severe Thunderstorm Warning	MPX	Redwood, Renville, Sibley	43 min
Mar 6, 4:10 PM CST	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Watonwan	35 min
Mar 6, 4:28 PM CST	Severe Thunderstorm Warning	MPX	Benton, Morrison, Stearns	47 min
Mar 6, 4:32 PM CST	Severe Thunderstorm Warning	MPX	Faribault, Martin	43 min
Mar 6, 4:41 PM CST	Severe Thunderstorm Warning	MPX	McLeod, Meeker, Wright	34 min
Mar 6, 4:54 PM CST	Severe Thunderstorm Warning	MPX	Faribault, Freeborn	21 min
Mar 6, 5:09 PM CST	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Freeborn, Steele, Waseca	36 min
Mar 6, 5:11 PM CST	Severe Thunderstorm Warning	MPX	Sherburne, Wright	34 min
Mar 6, 5:26 PM CST	Tornado Warning	MPX	Sherburne, Wright	20 min
Mar 6, 5:42 PM CST	Severe Thunderstorm Warning	MPX	Freeborn, Steele, Waseca	33 min
Mar 6, 5:44 PM CST	Tornado Warning	MPX	Isanti, Mille Lacs, Sherburne	31 min

Nearby

Tornado Warnings in Minnesota, 2017 Every tornado warning in 2017 Tornadoes 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.