Alert archive / Minnesota / Tornado Warnings in 2024

Tornado Warning 30, NWS Twin Cities, MN

August 29, 2024Mille Lacs County, Morrison County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Aug 29, 2024, 3:31 PM CDT for Mille Lacs County, Morrison County, Minnesota. It was in force for 29 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
Aug 29, 2024, 3:31 PM CDT (20:31 UTC)
Expired
Aug 29, 2024, 4:00 PM CDT
In force
29 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Mille Lacs County, MN, Morrison County, MN

The radar

The Minneapolis radar (KMPX), 142 km from the middle of the area, began a volume at 20:32 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
Aug 29, 3:35 PM CDTTORNADO3 Wnw Genola, MNLate report after NWS assessed drone footage and other photographs from Morrison County emergency management. The tornado took roofs off of four barns or sheds, and dozens of trees were uprooted or broken, especially in Lastrup. Some trees or large branches la
Aug 29, 3:36 PM CDTTSTM WND DMG2 Wnw Genola, MNHeavy damage to chicken barn per email from EM. Time estimated via radar.
Aug 29, 3:38 PM CDTTSTM WND DMG1 Wnw Pierz, MNMultiple twisted and downed trees up to 2 feet in diameter throughout the Pierz Trailer Park. Time estimated from radar.
Aug 29, 3:43 PM CDTTSTM WND DMGLastrup, MNCity of Lastrup reported via email dozens trees down throughout the city, especially the north end. Time estimated via radar.

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
Aug 29, 2:33 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.5 hours before the alert went out and 141 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 2024-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 832 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 12:00Z on 2024-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 242 square meters per square second.193958Sfc1 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
832 J/kg
Mixed-layer CIN
-148 J/kg
Mixed-layer LCL
584 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
242 m²/s²
0-3 km storm-relative helicity
296 m²/s²
Significant tornado parameter
0.0
Supercell composite
8.9

Open this sounding in Storm Lab

The text

As transmitted.

870 
WFUS53 KMPX 292031
TORMPX
MNC095-097-292100-
/O.NEW.KMPX.TO.W.0030.240829T2031Z-240829T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
331 PM CDT Thu Aug 29 2024

The National Weather Service in the Twin Cities has issued a

* Tornado Warning for...
  Northwestern Mille Lacs County in east central Minnesota...
  Southeastern Morrison County in central Minnesota...

* Until 400 PM CDT.

* At 330 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Pierz, or 7 miles east of Little Falls, moving
  northeast at 55 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...
  Pierz and Lastrup around 335 PM CDT.
  Vineland around 355 PM CDT.

Other locations impacted by this tornadic thunderstorm include Mille
Lacs Kathio State Park, Hillman, Genola, Harding, and Rum River State
Forest.
 
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 4604 9361 4587 9424 4595 9432 4616 9395
      4616 9381 4624 9382 4625 9381 4624 9379
TIME...MOT...LOC 2030Z 239DEG 46KT 4594 9421 

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

$$

Borghoff
2 follow-up statements
259 
WWUS53 KMPX 292045
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
345 PM CDT Thu Aug 29 2024

MNC095-097-292100-
/O.CON.KMPX.TO.W.0030.000000T0000Z-240829T2100Z/
Mille Lacs MN-Morrison MN-
345 PM CDT Thu Aug 29 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
NORTHWESTERN MILLE LACS AND EAST CENTRAL MORRISON COUNTIES...

At 345 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Lastrup, or 19 miles east of Little Falls, moving
northeast at 55 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...
  Mille Lacs Lake and Vineland around 355 PM CDT.

Other locations impacted by this tornadic thunderstorm include Mille
Lacs Kathio State Park, Hillman, Harding, and Rum River State Forest.

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 4604 9361 4595 9400 4607 9412 4616 9395
      4616 9381 4624 9382 4625 9381 4624 9379
TIME...MOT...LOC 2045Z 234DEG 49KT 4606 9397 

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

$$

Borghoff
834 
WWUS53 KMPX 292053
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
353 PM CDT Thu Aug 29 2024

MNC095-097-292103-
/O.EXP.KMPX.TO.W.0030.000000T0000Z-240829T2100Z/
Mille Lacs MN-Morrison MN-
353 PM CDT Thu Aug 29 2024

...THE TORNADO WARNING FOR NORTHWESTERN MILLE LACS AND EAST CENTRAL
MORRISON COUNTIES WILL EXPIRE AT 400 PM CDT...

The tornado threat has diminished and the Tornado Warning will be 
allowed to expire. However, damaging winds remain likely and a 
Severe Thunderstorm Warning remains in effect for the area.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
central and east central Minnesota.

&&

LAT...LON 4604 9361 4595 9400 4607 9412 4616 9395
      4616 9381 4624 9382 4625 9381 4624 9379
TIME...MOT...LOC 2053Z 239DEG 46KT 4610 9386 

$$

Borghoff

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 2:11 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Stearns34 min
Aug 29, 2:17 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet28 min
Aug 29, 2:29 PM CDTSevere Thunderstorm WarningMPXKandiyohi31 min
Aug 29, 2:33 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet27 min
Aug 29, 2:37 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Stearns, Todd38 min
Aug 29, 2:44 PM CDTSevere Thunderstorm WarningMPXNicollet, Sibley46 min
Aug 29, 2:54 PM CDTSevere Thunderstorm WarningMPXBenton, Meeker, Morrison, Sherburne, Stearns51 min
Aug 29, 3:05 PM CDTSevere Thunderstorm WarningMPXMcLeod, Meeker, Wright40 min
Aug 29, 3:12 PM CDTSevere Thunderstorm WarningMPXCarver, McLeod, Scott, Sibley48 min
Aug 29, 3:37 PM CDTSevere Thunderstorm WarningMPXBenton, Mille Lacs, Morrison53 min
Aug 29, 3:38 PM CDTSpecial Weather StatementMPXWatonwan37 min
Aug 29, 3:42 PM CDTSevere Thunderstorm WarningMPXAnoka, Carver, Dakota, Hennepin, Ramsey, Scott48 min
Aug 29, 3:50 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Nicollet, Watonwan25 min
Aug 29, 3:52 PM CDTTornado WarningMPXBlue Earth, Brown, Watonwan23 min
Aug 29, 4:08 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Le Sueur, Nicollet, Waseca36 min
Aug 29, 4:18 PM CDTSevere Thunderstorm WarningMPXAnoka, Chisago, Dakota, Hennepin, Ramsey, Washington57 min
Aug 29, 4:32 PM CDTTornado WarningMPXAnoka, Chisago, Isanti28 min
Aug 29, 4:53 PM CDTTornado Warning Tornado observedMPXChisago20 min
Aug 29, 4:54 PM CDTSpecial Weather StatementMPXSteele, Waseca36 min
Aug 29, 4:58 PM CDTSevere Thunderstorm WarningMPXChisago32 min
Aug 29, 5:30 PM CDTSpecial Weather StatementMPXWashington30 min
Aug 29, 5:34 PM CDTSpecial Weather StatementMPXSteele26 min

Nearby

Tornado Warnings in Minnesota, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.