Alert archive / Minnesota / Tornado Warnings in 2020

Tornado Warning 12, NWS Twin Cities, MN

July 14, 2020Kanabec County, Mille Lacs County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jul 14, 2020, 12:04 AM CDT for Kanabec County, Mille Lacs County, Minnesota. It was in force for 26 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: Jul 14, 2020, 12:04 AM CDT (05:04 UTC)
Expired: Jul 14, 2020, 12:30 AM CDT
In force: 26 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Kanabec County, MN, Mille Lacs County, MN

The radar

The Minneapolis radar (KMPX), 120 km from the middle of the area, began a volume at 05:08 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.1 hours before the alert went out and 120 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: 293 J/kg
Mixed-layer CIN: -270 J/kg
Mixed-layer LCL: 1483 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 309 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

As transmitted.

466 
WFUS53 KMPX 140504
TORMPX
MNC065-095-140545-
/O.NEW.KMPX.TO.W.0012.200714T0504Z-200714T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
1204 AM CDT Tue Jul 14 2020

The National Weather Service in The Twin Cities has issued a

* Tornado Warning for...
  West central Kanabec County in east central Minnesota...
  Central Mille Lacs County in east central Minnesota...

* Until 1245 AM CDT.
    
* At 1204 AM CDT, a severe thunderstorm capable of producing a
  tornado was located 9 miles south of Onamia, or 25 miles south of
  Mille Lacs Lake, moving east at 40 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 tornadic thunderstorm will remain over mainly rural areas of
  west central Kanabec and central Mille Lacs Counties.

This includes U.S. Highway 169 between mile markers 201 and 208.
 
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 4589 9377 4599 9377 4604 9333 4584 9333
TIME...MOT...LOC 0504Z 269DEG 35KT 4594 9372 

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

$$

BORGHOFF

2 follow-up statements

876 
WWUS53 KMPX 140516
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1216 AM CDT Tue Jul 14 2020

MNC065-095-140545-
/O.CON.KMPX.TO.W.0012.000000T0000Z-200714T0545Z/
Kanabec MN-Mille Lacs MN-
1216 AM CDT Tue Jul 14 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR WEST
CENTRAL KANABEC AND EAST CENTRAL MILLE LACS COUNTIES...
    
At 1216 AM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles northwest of Ogilvie, or 26 miles south of Mille
Lacs Lake, moving east at 40 mph.

HAZARD...Tornado.

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 tornadic thunderstorm will remain over mainly rural areas of
west central Kanabec and east central Mille Lacs Counties.

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 4590 9362 4599 9362 4602 9333 4587 9333
TIME...MOT...LOC 0516Z 269DEG 35KT 4594 9355 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

BORGHOFF

056 
WWUS53 KMPX 140530
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1230 AM CDT Tue Jul 14 2020

MNC065-095-140540-
/O.CAN.KMPX.TO.W.0012.000000T0000Z-200714T0545Z/
Kanabec MN-Mille Lacs MN-
1230 AM CDT Tue Jul 14 2020

...THE TORNADO WARNING FOR WEST CENTRAL KANABEC AND EAST CENTRAL
MILLE LACS COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

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 4590 9362 4599 9362 4602 9333 4587 9333
TIME...MOT...LOC 0529Z 269DEG 35KT 4594 9335 

$$

BORGHOFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 9:39 PM CDT	Special Weather Statement	MPX	Todd	51 min
Jul 13, 9:50 PM CDT	Severe Thunderstorm Warning	MPX	Todd	40 min
Jul 13, 10:26 PM CDT	Severe Thunderstorm Warning	MPX	Morrison, Todd	52 min
Jul 13, 11:34 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs, Morrison	41 min
Jul 14, 6:16 AM CDT	Special Weather Statement	MPX	Faribault, Freeborn	44 min
Jul 14, 7:04 AM CDT	Special Weather Statement	MPX	Steele	41 min
Jul 14, 7:18 AM CDT	Special Weather Statement	MPX	Dakota	42 min
Jul 14, 7:22 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Washington	38 min

Nearby

Tornado Warnings in Minnesota, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.