Alert archive / Minnesota / Tornado Warnings in 2015

Tornado Warning 4, NWS Aberdeen, SD

May 16, 2015Big Stone County, Minnesota

NWS Aberdeen, SD issued this tornado warning at May 16, 2015, 4:32 PM CDT for Big Stone County, Minnesota. It was in force for 30 min. 2 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
May 16, 2015, 4:32 PM CDT (21:32 UTC)
Expired
May 16, 2015, 5:02 PM CDT
In force
30 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Big Stone County, MN

What was reported inside it

TimeReportWhereRemark
May 16, 4:38 PM CDTTSTM WND GST 636 Ese Ortonville, MNMEASURED WITH BIG STONE RAWS. TIME ESTIMATED BASED ON RADAR.
May 16, 4:54 PM CDTTSTM WND GST 563 Wsw Artichoke, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.5 hours before the alert went out and 172 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, Aberdeen, SD at 12:00Z on 2015-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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, Aberdeen, SD at 12:00Z on 2015-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
1 J/kg
Mixed-layer CIN
-146 J/kg
Mixed-layer LCL
720 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

121 
WFUS53 KABR 162132
TORABR
MNC011-162215-
/O.NEW.KABR.TO.W.0004.150516T2132Z-150516T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
432 PM CDT SAT MAY 16 2015

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN BIG STONE COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 515 PM CDT
    
* AT 430 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER ODESSA...OR NEAR ORTONVILLE...MOVING
  NORTHEAST AT 30 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED ROTATION. AT 420 PM...A TRAINED SPOTTER
  IN NEARBY LAC QUI PARLE COUNTY REPORTED A BRIEF TORNADO TOUCHDOWN. 

  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...
  ARTICHOKE LAKE AROUND 455 PM CDT.
  ARTICHOKE AROUND 500 PM CDT.

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 4522 9627 4523 9628 4525 9629 4525 9631
      4526 9637 4526 9641 4527 9643 4557 9624
      4541 9624 4541 9612 4531 9612
TIME...MOT...LOC 2130Z 214DEG 25KT 4524 9636 

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

$$

DORN
2 follow-up statements
735 
WWUS53 KABR 162148
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
448 PM CDT SAT MAY 16 2015

MNC011-162215-
/O.CON.KABR.TO.W.0004.000000T0000Z-150516T2215Z/
BIG STONE MN-
448 PM CDT SAT MAY 16 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR EASTERN
BIG STONE COUNTY...
    
AT 447 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR ODESSA...OR 7 MILES EAST OF ORTONVILLE...MOVING
NORTHEAST AT 25 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 DANGEROUS STORM WILL BE NEAR...
  ARTICHOKE LAKE AROUND 500 PM CDT.
  ARTICHOKE AROUND 505 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL NEAREST LAW ENFORCEMENT AGENCY
WHO WILL SEND YOUR REPORT. THIS ACT MAY SAVE LIVES OF OTHERS IN THE
PATH OF DANGEROUS WEATHER.

&&

LAT...LON 4522 9627 4523 9628 4525 9629 4525 9631
      4532 9638 4557 9624 4541 9624 4541 9612
      4531 9612
TIME...MOT...LOC 2147Z 213DEG 21KT 4534 9630 

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

$$

DORN
041 
WWUS53 KABR 162202
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
502 PM CDT SAT MAY 16 2015

MNC011-162212-
/O.CAN.KABR.TO.W.0004.000000T0000Z-150516T2215Z/
BIG STONE MN-
502 PM CDT SAT MAY 16 2015

...THE TORNADO WARNING FOR EASTERN BIG STONE COUNTY IS CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS
AND EXITED THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.
HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.

LAT...LON 4522 9627 4523 9628 4525 9629 4525 9631
      4532 9638 4557 9624 4541 9624 4541 9612
      4531 9612
TIME...MOT...LOC 2201Z 214DEG 25KT 4546 9623 

$$

DORN

The office that day

Everything else NWS Aberdeen, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 16, 4:27 PM CDTSpecial Weather StatementABRBig Stone48 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.