Alert archive / Minnesota / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 162, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 31, 2013, 7:33 PM CDT for Brown County, Watonwan County, Minnesota. It was in force for 42 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
- Aug 31, 2013, 7:33 PM CDT (00:33 UTC)
- Expired
- Aug 31, 2013, 8:15 PM CDT
- In force
- 42 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Brown County, MN, Watonwan County, MN
The radar
The Minneapolis radar (KMPX), 116 km from the middle of the area, began a volume at 00:36 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 |
|---|---|---|---|
| Aug 31, 2:49 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 0.6 hours before the alert went out and 114 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.
- Mixed-layer CAPE
- 1204 J/kg
- Mixed-layer CIN
- -136 J/kg
- Mixed-layer LCL
- 1382 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 141 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
707
WUUS53 KMPX 010033
SVRMPX
MNC015-165-010115-
/O.NEW.KMPX.SV.W.0162.130901T0033Z-130901T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
733 PM CDT SAT AUG 31 2013
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
BROWN COUNTY IN SOUTH CENTRAL MINNESOTA...
NORTHERN WATONWAN COUNTY IN SOUTH CENTRAL MINNESOTA...
* UNTIL 815 PM CDT
* AT 732 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM FORT RIDGELY STATE PARK TO 7 MILES SOUTHWEST OF
SLEEPY EYE TO JEFFERS...AND MOVING SOUTHEAST AT 30 MPH.
HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.
* LOCATIONS IMPACTED INCLUDE...
NEW ULM...ST JAMES...SLEEPY EYE...FLANDRAU STATE PARK...COMFREY...
DARFUR...HANSKA...LA SALLE...BUTTERFIELD...GROGAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4409 9487 4410 9509 4418 9511 4428 9487
4440 9467 4436 9449 4433 9445 4428 9442
4426 9437 4411 9437 4399 9453 4392 9486
TIME...MOT...LOC 0033Z 317DEG 27KT 4442 9465 4424 9485
4410 9525
HAIL...0.88IN
WIND...60MPH
$$1 follow-up statement
919
WWUS53 KMPX 010056
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
756 PM CDT SAT AUG 31 2013
MNC015-165-010115-
/O.CON.KMPX.SV.W.0162.000000T0000Z-130901T0115Z/
BROWN MN-WATONWAN MN-
756 PM CDT SAT AUG 31 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
WATONWAN AND SOUTHERN BROWN COUNTIES UNTIL 815 PM CDT...
AT 755 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM FLANDRAU STATE PARK TO 10 MILES NORTH OF ST JAMES TO 5
MILES NORTHWEST OF BINGHAM LAKE...AND MOVING SOUTHEAST AT 30 MPH.
HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.
LOCATIONS IMPACTED INCLUDE...
ST JAMES...HANSKA...LA SALLE...BUTTERFIELD...GROGAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4409 9487 4410 9509 4418 9511 4429 9469
4411 9437 4399 9453 4392 9486
TIME...MOT...LOC 0057Z 317DEG 27KT 4429 9448 4411 9468
4397 9508
HAIL...0.75IN
WIND...60MPH
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 7:27 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Nicollet, Renville, Sibley | 33 min |
| Aug 31, 7:52 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur, Nicollet, Sibley | 38 min |
| Aug 31, 8:30 PM CDT | Special Weather Statement | MPX | Le Sueur, Rice | 45 min |
| Aug 31, 11:57 PM CDT | Special Weather Statement | MPX | Blue Earth | 63 min |
| Sep 1, 12:06 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Le Sueur, Nicollet | 39 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2013Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.