Alert archive / Minnesota / Tornado Warnings in 2014

Tornado Warning 24, NWS Twin Cities, MN

August 24, 2014Mille Lacs County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Aug 24, 2014, 6:02 PM CDT for Mille Lacs County, Minnesota. It was in force for 43 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: Aug 24, 2014, 6:02 PM CDT (23:02 UTC)
Expired: Aug 24, 2014, 6:45 PM CDT
In force: 43 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

County Mille Lacs County, MN

The radar

The Minneapolis radar (KMPX), 119 km from the middle of the area, began a volume at 23:05 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
Aug 24, 3:45 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.0 hours before the alert went out and 119 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: 1234 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 583 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 355 m²/s²
0-3 km storm-relative helicity: 331 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

108 
WFUS53 KMPX 242302
TORMPX
MNC095-242345-
/O.NEW.KMPX.TO.W.0024.140824T2302Z-140824T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
602 PM CDT SUN AUG 24 2014

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL MILLE LACS COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 645 PM CDT

* AT 559 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 12 MILES NORTHWEST OF MILACA...AND MOVING
  NORTHEAST AT 25 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 AFFECT MAINLY RURAL AREAS OF CENTRAL
  MILLE LACS COUNTY...INCLUDING THE FOLLOWING LOCATIONS...RUM RIVER
  STATE FOREST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4603 9351 4586 9351 4586 9352 4582 9377
      4592 9376
TIME...MOT...LOC 2302Z 244DEG 23KT 4585 9385

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

$$

JRB

2 follow-up statements

309 
WWUS53 KMPX 242322
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
622 PM CDT SUN AUG 24 2014

MNC095-242345-
/O.CON.KMPX.TO.W.0024.000000T0000Z-140824T2345Z/
MILLE LACS MN-
622 PM CDT SUN AUG 24 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL MILLE LACS COUNTY
UNTIL 645 PM CDT...

AT 621 PM CDT...A CONFIRMED TORNADO WAS LOCATED 10 MILES SOUTH OF
ONAMIA...AND MOVING NORTHEAST AT 40 MPH.

HAZARD...DAMAGING TORNADO AND GOLF BALL SIZE HAIL.

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.

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.

LOCATIONS IMPACTED INCLUDE...
RUM RIVER STATE FOREST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4603 9351 4587 9352 4585 9374 4593 9374
TIME...MOT...LOC 2322Z 240DEG 34KT 4592 9365

TORNADO...OBSERVED
HAIL...1.75IN

$$

JRB

829 
WWUS53 KMPX 242339
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
639 PM CDT SUN AUG 24 2014

MNC095-242345-
/O.CON.KMPX.TO.W.0024.000000T0000Z-140824T2345Z/
MILLE LACS MN-
639 PM CDT SUN AUG 24 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL MILLE LACS COUNTY
UNTIL 645 PM CDT...

AT 637 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 8 MILES SOUTHEAST OF ONAMIA...AND MOVING NORTHEAST AT 35
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.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EASTERN MILLE LACS COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 4603 9351 4598 9351 4594 9352 4594 9362
      4598 9362 4599 9361
TIME...MOT...LOC 2339Z 236DEG 28KT 4600 9352

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

$$

JRB

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 24, 2:15 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Douglas, Kandiyohi, Pope, Swift	30 min
Aug 24, 2:40 AM CDT	Severe Thunderstorm Warning	MPX	Douglas, Kandiyohi, Pope, Stearns, Todd	65 min
Aug 24, 5:03 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Morrison	57 min
Aug 24, 5:18 PM CDT	Special Weather Statement	MPX	Ramsey	42 min
Aug 24, 5:24 PM CDT	Special Weather Statement	MPX	Dakota	51 min
Aug 24, 5:29 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Morrison	46 min
Aug 24, 5:38 PM CDT	Tornado Warning	MPX	Benton, Morrison	37 min
Aug 24, 5:49 PM CDT	Severe Thunderstorm Warning	MPX	Wright	41 min
Aug 24, 6:08 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec, Mille Lacs, Morrison	52 min
Aug 24, 6:31 PM CDT	Special Weather Statement	MPX	Sherburne	29 min
Aug 24, 6:57 PM CDT	Special Weather Statement	MPX	Mille Lacs	48 min
Aug 24, 6:59 PM CDT	Tornado Warning	MPX	Kanabec	31 min

Nearby

Tornado Warnings in Minnesota, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.