Alert archive / Minnesota / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 121, NWS Twin Cities, MN

August 6, 2013Stearns County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 6, 2013, 6:29 PM CDT for Stearns County, Minnesota. It was in force for 61 min. 3 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 6, 2013, 6:29 PM CDT (23:29 UTC)
Expired: Aug 6, 2013, 7:30 PM CDT
In force: 61 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.75 in
Wind: 70.0 mph

County Stearns County, MN

The radar

The Minneapolis radar (KMPX), 124 km from the middle of the area, began a volume at 23:31 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
Aug 6, 6:33 PM CDT	TSTM WND GST 55	1 E Brooten, MN
Aug 6, 6:40 PM CDT	HAIL 0.88	3 N Brooten, MN
Aug 6, 6:50 PM CDT	HAIL 1	Spring Hill, 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 6, 2:24 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.5 hours before the alert went out and 122 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1188 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 38 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.

957 
WUUS53 KMPX 062329
SVRMPX
MNC145-070030-
/O.NEW.KMPX.SV.W.0121.130806T2329Z-130807T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
629 PM CDT TUE AUG 6 2013

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN STEARNS COUNTY IN CENTRAL MINNESOTA...

* UNTIL 730 PM CDT

* AT 626 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES EAST OF
  GLENWOOD...AND MOVING EAST AT 35 MPH.

  HAZARD...GOLF BALL SIZE HAIL AND 70 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL
           DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES. EXPECT
           CONSIDERABLE TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO
           MOBILE HOMES...ROOFS AND OUTBUILDINGS.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF WESTERN
  STEARNS COUNTY...INCLUDING THE FOLLOWING LOCATIONS...PADUA...
  ELROSA...MEIRE GROVE...GREENWALD...SPRING HILL...ST MARTIN AND
  FARMING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT
IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE
TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT
OR SMALL INTERIOR ROOM.

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4577 9456 4536 9455 4538 9477 4541 9477
      4541 9503 4542 9513 4577 9515
TIME...MOT...LOC 2329Z 282DEG 30KT 4562 9524

HAIL...1.75IN
WIND...70MPH

$$

JLT

3 follow-up statements

381 
WWUS53 KMPX 062345
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
645 PM CDT TUE AUG 6 2013

MNC145-070030-
/O.CON.KMPX.SV.W.0121.000000T0000Z-130807T0030Z/
STEARNS MN-
645 PM CDT TUE AUG 6 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
STEARNS COUNTY UNTIL 730 PM CDT...

AT 640 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 11 MILES SOUTH OF
SAUK CENTRE...AND MOVING EAST AT 50 MPH.

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

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE
         TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE HOMES...
         ROOFS AND OUTBUILDINGS.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF WESTERN
STEARNS COUNTY...INCLUDING THE FOLLOWING LOCATIONS...ST MARTIN AND
FARMING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT
IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE
TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT
OR SMALL INTERIOR ROOM.

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4577 9456 4536 9455 4538 9477 4541 9477
      4541 9503 4542 9513 4577 9515
TIME...MOT...LOC 2345Z 281DEG 45KT 4558 9491

HAIL...1.00IN
WIND...70MPH

$$

JLT

341 
WWUS53 KMPX 062358
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
658 PM CDT TUE AUG 6 2013

MNC145-070030-
/O.CON.KMPX.SV.W.0121.000000T0000Z-130807T0030Z/
STEARNS MN-
658 PM CDT TUE AUG 6 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
STEARNS COUNTY UNTIL 730 PM CDT...

AT 654 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 10 MILES SOUTHWEST
OF ALBANY...AND MOVING EAST AT 50 MPH.

HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...LAW ENFORCEMENT.

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

THE SEVERE THUNDERSTORM WILL BE NEAR...
  ALBANY AROUND 705 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE FARMING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT
IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE
TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT
OR SMALL INTERIOR ROOM.

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4542 9491 4577 9472 4577 9456 4536 9455
      4538 9477 4541 9477
TIME...MOT...LOC 2358Z 281DEG 45KT 4555 9468

HAIL...1.00IN
WIND...60MPH

$$

JLT

932 
WWUS53 KMPX 070019
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
719 PM CDT TUE AUG 6 2013

MNC145-070029-
/O.CAN.KMPX.SV.W.0121.000000T0000Z-130807T0030Z/
STEARNS MN-
719 PM CDT TUE AUG 6 2013

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL STEARNS COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED SOUTHEAST OUT OF THE 
WARNED AREA. HOWEVER ANOTHER STEVERE THUNDERSTORM FOR SOUTEHRN 
STEARNS COUNTY REMAINS IN EFFECT UNTIL 8 PM CDT.

LAT...LON 4542 9491 4577 9472 4577 9456 4536 9455
      4538 9477 4541 9477
TIME...MOT...LOC 0019Z 281DEG 45KT 4550 9431

$$

JLT

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 10:58 AM CDT	Special Weather Statement	MPX	Morrison	62 min
Aug 6, 11:54 AM CDT	Special Weather Statement	MPX	Mille Lacs	66 min
Aug 6, 3:26 PM CDT	Special Weather Statement	MPX	Stevens	49 min
Aug 6, 3:49 PM CDT	Severe Thunderstorm Warning	MPX	Stevens	41 min
Aug 6, 3:59 PM CDT	Tornado Warning	MPX	Stevens	31 min
Aug 6, 4:22 PM CDT	Tornado Warning	MPX	Pope	38 min
Aug 6, 4:26 PM CDT	Severe Thunderstorm Warning	MPX	Douglas	34 min
Aug 6, 4:49 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Pope, Stearns, Swift	41 min
Aug 6, 5:07 PM CDT	Tornado Warning	MPX	Kandiyohi	38 min
Aug 6, 5:34 PM CDT	Special Weather Statement	MPX	Kanabec	26 min
Aug 6, 5:37 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker	53 min
Aug 6, 5:43 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec	47 min
Aug 6, 6:09 PM CDT	Severe Thunderstorm Warning	MPX	Pope	51 min
Aug 6, 6:24 PM CDT	Severe Thunderstorm Warning	MPX	Wright	51 min
Aug 6, 6:53 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin	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.