Alert archive / Minnesota / Tornado Warnings in 2018

Tornado Warning 4, NWS Twin Cities, MN

June 17, 2018Kanabec County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jun 17, 2018, 2:25 PM CDT for Kanabec County, Minnesota. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 17, 2018, 2:25 PM CDT (19:25 UTC)
Expired: Jun 17, 2018, 3:00 PM CDT
In force: 35 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

County Kanabec County, MN

The radar

The Minneapolis radar (KMPX), 114 km from the middle of the area, began a volume at 19:26 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 17, 12:34 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 7.4 hours before the alert went out and 115 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: 1067 J/kg
Mixed-layer CIN: -128 J/kg
Mixed-layer LCL: 1089 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 175 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted.

799 
WFUS53 KMPX 171925
TORMPX
MNC065-172000-
/O.NEW.KMPX.TO.W.0004.180617T1925Z-180617T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
225 PM CDT SUN JUN 17 2018

The National Weather Service in The Twin Cities has issued a

* Tornado Warning for...
  Southern Kanabec County in east central Minnesota...

* Until 300 PM CDT.
    
* At 225 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Mora, or 19 miles west of Pine City, moving east
  at 25 mph.

  HAZARD...Tornado and ping pong 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...
  Mora around 235 PM CDT.
  Grasston and Quamba around 245 PM CDT.

Other locations impacted by this tornadic thunderstorm include Mora
Airport.

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 4579 9314 4579 9315 4584 9343 4592 9343
      4598 9314
TIME...MOT...LOC 1925Z 265DEG 23KT 4588 9337 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

BORGHOFF

2 follow-up statements

700 
WWUS53 KMPX 171937
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
237 PM CDT SUN JUN 17 2018

MNC065-172000-
/O.CON.KMPX.TO.W.0004.000000T0000Z-180617T2000Z/
Kanabec MN-
237 PM CDT SUN JUN 17 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR
SOUTHEASTERN KANABEC COUNTY...
    
At 237 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Mora Airport, or 15 miles west of Pine City, moving
east at 25 mph.

HAZARD...Tornado and quarter 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...
  Grasston and Quamba around 250 PM CDT.

Other locations impacted by this tornadic thunderstorm include Mora
Airport.

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 4579 9314 4579 9315 4583 9338 4592 9335
      4598 9314
TIME...MOT...LOC 1937Z 264DEG 22KT 4589 9328 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BORGHOFF

286 
WWUS53 KMPX 171958
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
258 PM CDT SUN JUN 17 2018

MNC065-172005-
/O.EXP.KMPX.TO.W.0004.000000T0000Z-180617T2000Z/
Kanabec MN-
258 PM CDT SUN JUN 17 2018

...THE TORNADO WARNING FOR SOUTHEASTERN KANABEC COUNTY WILL EXPIRE AT
300 PM CDT...
        
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 900 PM CDT for east central
Minnesota.

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 4579 9314 4579 9315 4583 9338 4592 9335
      4598 9314
TIME...MOT...LOC 1955Z 265DEG 23KT 4590 9314 

$$

BORGHOFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 7:16 PM CDT	Special Weather Statement	MPX	Lac qui Parle	44 min
Jun 16, 8:48 PM CDT	Special Weather Statement	MPX	Chippewa, Kandiyohi, Pope	27 min
Jun 16, 9:23 PM CDT	Special Weather Statement	MPX	Stearns	37 min
Jun 16, 10:02 PM CDT	Special Weather Statement	MPX	Douglas	58 min
Jun 16, 10:12 PM CDT	Severe Thunderstorm Warning	MPX	Pope, Stearns	33 min
Jun 16, 10:29 PM CDT	Special Weather Statement	MPX	Stevens	31 min
Jun 16, 10:54 PM CDT	Special Weather Statement	MPX	Todd	36 min
Jun 16, 11:16 PM CDT	Special Weather Statement	MPX	Pope, Todd	29 min
Jun 16, 11:37 PM CDT	Severe Thunderstorm Warning	MPX	Morrison, Todd	23 min
Jun 17, 12:22 PM CDT	Severe Thunderstorm Warning	MPX	Morrison, Todd	38 min
Jun 17, 1:37 PM CDT	Special Weather Statement	MPX	Mille Lacs	8 min
Jun 17, 1:47 PM CDT	Special Weather Statement	MPX	Mille Lacs	43 min
Jun 17, 2:44 PM CDT	Flash Flood Watch	MPX	Anoka, Chisago, Dakota, Goodhue, Hennepin, Isanti and 6 more	16 hr
Jun 17, 6:59 PM CDT	Special Weather Statement	MPX	Scott	31 min

Nearby

Tornado Warnings in Minnesota, 2018 Every tornado warning in 2018 Tornadoes in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.