Alert archive / Minnesota / Tornado Warnings in 2015

Tornado Warning 10, NWS Twin Cities, MN

May 16, 2015Chippewa County, Swift County, Minnesota

NWS Twin Cities, MN issued this tornado warning at May 16, 2015, 7:34 PM CDT for Chippewa County, Swift 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
May 16, 2015, 7:34 PM CDT (00:34 UTC)
Expired
May 16, 2015, 8:00 PM CDT
In force
26 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Chippewa County, MN, Swift County, MN

The watch it was issued in

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

IssuedProductOfficeLasted
May 16, 5:25 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.6 hours before the alert went out and 176 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 2015-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 440 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2015-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 234 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
440 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1055 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
234 m²/s²
0-3 km storm-relative helicity
286 m²/s²
Significant tornado parameter
0.6
Supercell composite
11.3

Open this sounding in Storm Lab

The text

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

264 
WFUS53 KMPX 170034
TORMPX
MNC023-151-170100-
/O.NEW.KMPX.TO.W.0010.150517T0034Z-150517T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
734 PM CDT SAT MAY 16 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA...
  SOUTH CENTRAL SWIFT COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 800 PM CDT
    
* AT 734 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER WATSON...OR 7 MILES NORTHWEST OF
  MONTEVIDEO...MOVING NORTHEAST AT 20 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...
  MILAN AROUND 745 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE BIG
BEND CITY AND HAGEN.

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 4527 9582 4521 9558 4494 9579 4496 9582
      4500 9583 4502 9587 4507 9593
TIME...MOT...LOC 0034Z 203DEG 17KT 4502 9583 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$
1 follow-up statement
888 
WWUS53 KMPX 170052
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
752 PM CDT SAT MAY 16 2015

MNC023-151-170102-
/O.EXP.KMPX.TO.W.0010.000000T0000Z-150517T0100Z/
CHIPPEWA MN-SWIFT MN-
752 PM CDT SAT MAY 16 2015

...THE TORNADO WARNING FOR NORTHWESTERN CHIPPEWA AND SOUTH CENTRAL
SWIFT COUNTIES WILL EXPIRE AT 800 PM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR WEST CENTRAL
MINNESOTA.

LAT...LON 4527 9582 4521 9558 4494 9579 4496 9582
      4500 9583 4502 9587 4507 9593
TIME...MOT...LOC 0050Z 203DEG 17KT 4502 9583 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 7:03 PM CDTSevere Thunderstorm WarningMPXMeeker, Renville27 min
May 16, 7:15 PM CDTTornado WarningMPXMcLeod, Meeker, Renville30 min
May 16, 7:35 PM CDTTornado WarningMPXMeeker25 min
May 16, 7:40 PM CDTTornado WarningMPXMeeker35 min
May 16, 7:44 PM CDTTornado WarningMPXDouglas, Pope31 min
May 16, 8:10 PM CDTSpecial Weather StatementMPXStearns50 min
May 16, 8:25 PM CDTTornado WarningMPXMeeker, Stearns35 min
May 16, 9:21 PM CDTSpecial Weather StatementMPXCarver, Sherburne, Wright39 min
May 16, 10:39 PM CDTSpecial Weather StatementMPXSherburne, Wright2 hr
May 17, 7:27 AM CDTSpecial Weather StatementMPXRenville33 min
May 17, 7:55 AM CDTSpecial Weather StatementMPXChippewa, Renville, Swift35 min
May 17, 9:38 AM CDTSpecial Weather StatementMPXDouglas, Pope, Stevens, Swift, Todd52 min
May 17, 1:51 PM CDTSpecial Weather StatementMPXFaribault24 min
May 17, 2:03 PM CDTSpecial Weather StatementMPXStearns27 min
May 17, 2:07 PM CDTSpecial Weather StatementMPXChippewa23 min
May 17, 2:15 PM CDTSpecial Weather StatementMPXMeeker30 min
May 17, 2:18 PM CDTSpecial Weather StatementMPXWaseca27 min
May 17, 2:30 PM CDTSpecial Weather StatementMPXFaribault30 min
May 17, 2:49 PM CDTSpecial Weather StatementMPXWaseca26 min
May 17, 3:01 PM CDTSpecial Weather StatementMPXMeeker29 min
May 17, 3:08 PM CDTSpecial Weather StatementMPXWaseca37 min
May 17, 3:16 PM CDTSpecial Weather StatementMPXBenton29 min
May 17, 3:32 PM CDTSpecial Weather StatementMPXMeeker28 min
May 17, 3:39 PM CDTSpecial Weather StatementMPXBenton36 min
May 17, 3:42 PM CDTSpecial Weather StatementMPXSherburne33 min
May 17, 3:54 PM CDTSpecial Weather StatementMPXMeeker36 min
May 17, 4:03 PM CDTSpecial Weather StatementMPXDakota27 min
May 17, 4:12 PM CDTSpecial Weather StatementMPXMille Lacs33 min
May 17, 4:17 PM CDTSpecial Weather StatementMPXSherburne28 min
May 17, 4:28 PM CDTSpecial Weather StatementMPXSherburne32 min
May 17, 5:11 PM CDTSpecial Weather StatementMPXGoodhue34 min
May 17, 6:16 PM CDTWind AdvisoryMPXBlue Earth, Brown, Carver, Chippewa, Dakota, Douglas and 26 more10 hr

Nearby

Tornado Warnings in Minnesota, 2015Every tornado warning in 2015Tornadoes in 2015

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.