Alert archive / Minnesota / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 46, NWS Twin Cities, MN

June 27, 2015Yellow Medicine County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 27, 2015, 10:01 PM CDT for Yellow Medicine County, Minnesota. It was in force for 29 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 27, 2015, 10:01 PM CDT (03:01 UTC)
Expired: Jun 27, 2015, 10:30 PM CDT
In force: 29 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Yellow Medicine County, MN

The radar

The Sioux Falls radar (KFSD), 147 km from the middle of the area, began a volume at 03:04 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
Jun 27, 5:11 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 3.0 hours before the alert went out and 185 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: 29 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1918 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

154 
WUUS53 KMPX 280301
SVRMPX
MNC173-280330-
/O.NEW.KMPX.SV.W.0046.150628T0301Z-150628T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1001 PM CDT SAT JUN 27 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 1030 PM CDT

* AT 1000 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BOYD...OR
  16 MILES SOUTHWEST OF MONTEVIDEO...MOVING SOUTHEAST AT 40 MPH.

  HAZARD...60 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING AND TREES. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  CLARKFIELD AROUND 1010 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE HAZEL
RUN...SPELLMAN LAKE...ST. LEO AND SPRING CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4481 9618 4481 9585 4489 9585 4489 9581
      4463 9560 4463 9609
TIME...MOT...LOC 0300Z 333DEG 36KT 4483 9600 

HAIL...1.25IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 8:55 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle	80 min
Jun 27, 9:14 PM CDT	Special Weather Statement	MPX	Stearns	46 min
Jun 27, 9:22 PM CDT	Severe Thunderstorm Warning	MPX	Douglas	53 min
Jun 27, 9:50 PM CDT	Special Weather Statement	MPX	Benton, Sherburne	40 min
Jun 27, 9:52 PM CDT	Severe Thunderstorm Warning	MPX	Stevens	53 min
Jun 27, 9:58 PM CDT	Special Weather Statement	MPX	Pope	47 min
Jun 27, 10:02 PM CDT	Special Weather Statement	MPX	Kanabec, Mille Lacs	28 min
Jun 27, 10:08 PM CDT	Special Weather Statement	MPX	Chippewa	37 min
Jun 27, 10:16 PM CDT	Severe Thunderstorm Warning	MPX	Pope	44 min
Jun 27, 10:29 PM CDT	Special Weather Statement	MPX	Swift	46 min
Jun 27, 10:32 PM CDT	Special Weather Statement	MPX	Yellow Medicine	58 min
Jun 27, 11:39 PM CDT	Special Weather Statement	MPX	Redwood	36 min
Jun 28, 1:49 AM CDT	Special Weather Statement	MPX	Blue Earth	26 min
Jun 28, 3:00 PM CDT	Special Weather Statement	MPX	Goodhue	30 min
Jun 28, 3:48 PM CDT	Special Weather Statement	MPX	Hennepin, Ramsey	42 min
Jun 28, 4:28 PM CDT	Special Weather Statement	MPX	Scott	32 min
Jun 28, 5:16 PM CDT	Special Weather Statement	MPX	Le Sueur	29 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2015 Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.