Alert archive / Minnesota / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 152, NWS Twin Cities, MN

August 31, 2013Pope County, Stearns County, Todd County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 31, 2013, 5:20 PM CDT for Pope County, Stearns County, Todd County, Minnesota. It was in force for 55 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: Aug 31, 2013, 5:20 PM CDT (22:20 UTC)
Expired: Aug 31, 2013, 6:15 PM CDT
In force: 55 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.88 in
Wind: 70.0 mph

Counties Pope County, MN, Stearns County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 151 km from the middle of the area, began a volume at 22:22 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

Time	Report	Where	Remark
Aug 31, 5:37 PM CDT	TSTM WND GST 63	1 Se Sauk Centre, MN	MEASURED BY MNDOT SITE ALONG I-94.
Aug 31, 5:37 PM CDT	TSTM WND GST 64	Sauk Centre, MN

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.

Issued	Product	Office	Lasted
Aug 31, 2:49 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.3 hours before the alert went out and 149 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: 75 J/kg
Mixed-layer CIN: -389 J/kg
Mixed-layer LCL: 782 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 54 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.

546 
WUUS53 KMPX 312220
SVRMPX
MNC121-145-153-312315-
/O.NEW.KMPX.SV.W.0152.130831T2220Z-130831T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
520 PM CDT SAT AUG 31 2013

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN POPE COUNTY IN WEST CENTRAL MINNESOTA...
  WESTERN STEARNS COUNTY IN CENTRAL MINNESOTA...
  SOUTHERN TODD COUNTY IN CENTRAL MINNESOTA...

* UNTIL 615 PM CDT

* AT 518 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 6 MILES SOUTHEAST OF PARKERS PRAIRIE TO 7 MILES
  NORTHEAST OF GLENWOOD TO 9 MILES NORTHWEST OF MONSON LAKE MEMORIAL
  STATE PARK...AND MOVING EAST AT 35 MPH.

  HAZARD...70 MPH WIND GUSTS AND NICKEL SIZE HAIL.

  SOURCE...TRAINED WEATHER SPOTTERS.

  IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO
           MOBILE HOMES...ROOFS AND OUTBUILDINGS.

* LOCATIONS IMPACTED INCLUDE...
  LONG PRAIRIE...SAUK CENTRE...WEST UNION...CLOTHO...EAGLE BEND...
  BROOTEN...PADUA...CLARISSA...LITTLE SAUK...
  BELGRADE...ELROSA...BROWERVILLE...MEIRE GROVE...
  GEORGEVILLE...GREENWALD...MELROSE...SPRING HILL AND GREY EALGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4615 9465 4578 9465 4541 9475 4541 9522
      4576 9514 4618 9515
TIME...MOT...LOC 2220Z 275DEG 32KT 4610 9522 4570 9523
          4542 9535

HAIL...0.88IN
WIND...70MPH

$$

1 follow-up statement

453 
WWUS53 KMPX 312311
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
611 PM CDT SAT AUG 31 2013

MNC121-145-153-312321-
/O.EXP.KMPX.SV.W.0152.000000T0000Z-130831T2315Z/
POPE MN-STEARNS MN-TODD MN-
611 PM CDT SAT AUG 31 2013

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN TODD...WESTERN
STEARNS AND SOUTHEASTERN POPE COUNTIES WILL EXPIRE AT 615 PM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE
WARNED AREA. HOWEVER...EASTERN STEARNS COUNTY REMAINS UNDER A 
SEVERE THUNDERSTORM WARNING UNTIL 615 PM CDT.

LAT...LON 4615 9465 4578 9465 4541 9475 4541 9522
      4576 9514 4618 9515
TIME...MOT...LOC 2311Z 275DEG 32KT 4606 9457 4566 9458
          4538 9471

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 31, 4:07 PM CDT	Severe Thunderstorm Warning	MPX	Stevens	38 min
Aug 31, 4:32 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope	43 min
Aug 31, 4:34 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle	41 min
Aug 31, 4:43 PM CDT	Severe Thunderstorm Warning	MPX	Pope, Stevens, Swift	47 min
Aug 31, 4:47 PM CDT	Severe Thunderstorm Warning	MPX	Swift	43 min
Aug 31, 4:55 PM CDT	Severe Thunderstorm Warning	MPX	Douglas	35 min
Aug 31, 5:12 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Renville, Swift	48 min
Aug 31, 5:30 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Pope, Stearns, Swift	45 min
Aug 31, 5:41 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle, Yellow Medicine	19 min
Aug 31, 5:47 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Sherburne, Stearns	28 min
Aug 31, 5:53 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Redwood, Renville, Yellow Medicine	37 min
Aug 31, 5:58 PM CDT	Severe Thunderstorm Warning	MPX	Morrison	47 min
Aug 31, 6:06 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Renville	39 min
Aug 31, 6:22 PM CDT	Severe Thunderstorm Warning	MPX	Redwood, Renville, Yellow Medicine	38 min
Aug 31, 6:53 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Nicollet, Redwood, Renville	52 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2013 Every severe thunderstorm warning in 2013

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.