Alert archive / Minnesota / Tornado Warnings in 2024

Tornado Warning 11, NWS Twin Cities, MN

June 12, 2024Chisago County, Isanti County, Minnesota; Polk County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at Jun 12, 2024, 8:15 PM CDT for Chisago County, Isanti County, Minnesota; Polk County, Wisconsin. It was in force for 14 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 12, 2024, 8:15 PM CDT (01:15 UTC)
Expired
Jun 12, 2024, 8:29 PM CDT
In force
14 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Chisago County, MN, Isanti County, MN, Polk County, WI

The radar

The Minneapolis radar (KMPX), 91 km from the middle of the area, began a volume at 01:18 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.

IssuedProductOfficeLasted
Jun 12, 3:32 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 12, 6:52 PM CDTTornado WatchSPC3 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.3 hours before the alert went out and 92 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 00:00Z on 2024-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1263 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2024-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 279 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
1263 J/kg
Mixed-layer CIN
-161 J/kg
Mixed-layer LCL
1298 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
279 m²/s²
0-3 km storm-relative helicity
254 m²/s²
Significant tornado parameter
0.3
Supercell composite
4.4

Open this sounding in Storm Lab

The text

As transmitted.

580 
WFUS53 KMPX 130115
TORMPX
MNC025-059-WIC095-130145-
/O.NEW.KMPX.TO.W.0011.240613T0115Z-240613T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
815 PM CDT Wed Jun 12 2024

The National Weather Service in the Twin Cities has issued a

* Tornado Warning for...
  Central Chisago County in east central Minnesota...
  East central Isanti County in east central Minnesota...
  West central Polk County in northwestern Wisconsin...

* Until 845 PM CDT.

* At 815 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Cambridge, moving east at 45 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 dangerous storm will be near...
  North Branch around 820 PM CDT.

Other locations impacted by this tornadic thunderstorm include Spring
Lake, Harris, Wolf Creek, Wild River State Park, and Branch.

This includes Interstate 35 between mile markers 149 and 155.
 
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 4554 9322 4563 9320 4562 9270 4549 9270
TIME...MOT...LOC 0115Z 275DEG 40KT 4558 9315 

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

$$

ETA
1 follow-up statement
171 
WWUS53 KMPX 130129
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
829 PM CDT Wed Jun 12 2024

MNC025-059-WIC095-130139-
/O.CAN.KMPX.TO.W.0011.000000T0000Z-240613T0145Z/
Chisago MN-Isanti MN-Polk WI-
829 PM CDT Wed Jun 12 2024

...THE TORNADO WARNING FOR CENTRAL CHISAGO...EAST CENTRAL ISANTI AND
WEST CENTRAL POLK 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.

A Tornado Watch remains in effect until 1000 PM CDT for east central
Minnesota...and northwestern Wisconsin.

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 4554 9322 4563 9320 4562 9270 4549 9270
TIME...MOT...LOC 0128Z 275DEG 40KT 4557 9293 

$$

ETA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 7:02 PM CDTTornado WarningMPXStearns28 min
Jun 12, 7:27 PM CDTSevere Thunderstorm WarningMPXBenton, Mille Lacs, Sherburne48 min
Jun 12, 7:45 PM CDTSevere Thunderstorm WarningMPXSherburne30 min
Jun 12, 7:59 PM CDTSevere Thunderstorm WarningMPXChisago, Isanti31 min
Jun 12, 8:18 PM CDTSpecial Weather StatementMPXBenton27 min
Jun 12, 8:34 PM CDTSpecial Weather StatementMPXChisago41 min
Jun 12, 8:46 PM CDTSpecial Weather StatementMPXSherburne29 min
Jun 12, 8:55 PM CDTSevere Thunderstorm WarningMPXAnoka, Isanti, Sherburne35 min
Jun 12, 9:25 PM CDTSevere Thunderstorm WarningMPXAnoka21 min
Jun 12, 9:51 PM CDTSpecial Weather StatementMPXAnoka39 min
Jun 12, 9:54 PM CDTSpecial Weather StatementMPXWright36 min
Jun 12, 10:19 PM CDTSpecial Weather StatementMPXChippewa26 min
Jun 12, 10:37 PM CDTSpecial Weather StatementMPXAnoka, Washington38 min
Jun 12, 10:49 PM CDTSpecial Weather StatementMPXRenville26 min
Jun 12, 10:53 PM CDTSpecial Weather StatementMPXHennepin, Ramsey37 min
Jun 12, 11:09 PM CDTSpecial Weather StatementMPXWashington21 min
Jun 12, 11:27 PM CDTSpecial Weather StatementMPXRenville33 min
Jun 12, 11:39 PM CDTSevere Thunderstorm Warning Considerable damage threatMPXNicollet, Renville, Sibley37 min
Jun 12, 11:46 PM CDTSpecial Weather StatementMPXCarver44 min
Jun 13, 10:25 AM CDTSpecial Weather StatementMPXBlue Earth, Brown, Steele, Waseca, Watonwan50 min
Jun 13, 11:19 AM CDTSpecial Weather StatementMPXBlue Earth, Brown, Steele, Waseca, Watonwan41 min
Jun 13, 12:24 AM CDTSpecial Weather StatementMPXPierce36 min

Nearby

Tornado Warnings in Minnesota, 2024Tornado Warnings in Wisconsin, 2024Every tornado warning in 2024Tornadoes in 2024

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.