Alert archive / Minnesota / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 126, NWS Twin Cities, MN

August 13, 2015Douglas County, Morrison County, Todd County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 13, 2015, 1:20 AM CDT for Douglas County, Morrison County, Todd County, Minnesota. It was in force for 40 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 13, 2015, 1:20 AM CDT (06:20 UTC)
Expired
Aug 13, 2015, 2:00 AM CDT
In force
40 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Douglas County, MN, Morrison County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 170 km from the middle of the area, began a volume at 06:20 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 6.3 hours before the alert went out and 169 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, Minneapolis, MN at 00:00Z on 2015-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 183 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, Minneapolis, MN at 00:00Z on 2015-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939587897Sfc1 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
183 J/kg
Mixed-layer CIN
-142 J/kg
Mixed-layer LCL
1528 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

139 
WUUS53 KMPX 130620
SVRMPX
MNC041-097-153-130700-
/O.NEW.KMPX.SV.W.0126.150813T0620Z-150813T0700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
120 AM CDT THU AUG 13 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN MORRISON COUNTY IN CENTRAL MINNESOTA...
  NORTHEASTERN DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA...
  TODD COUNTY IN CENTRAL MINNESOTA...

* UNTIL 200 AM CDT

* AT 120 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR PILLAGER TO 7 MILES NORTHEAST OF BROWERVILLE TO
  NEAR PARKERS PRAIRIE...MOVING SOUTHEAST AT 45 MPH.

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

  SOURCE...RADAR INDICATED. 

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

* SEVERE THUNDERSTORMS WILL BE NEAR...
  BROWERVILLE AROUND 125 AM CDT.
  RANDALL AND CAMP RIPLEY AROUND 140 AM CDT.
  LITTLE FALLS...SWANVILLE AND FLENSBURG AROUND 150 AM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
BURTRUM...LITTLE SAUK...LITTLE FALLS AIRPORT...CUSHING...ROUND
PRAIRIE...LONG PRAIRIE AIRPORT...CLOTHO...SOBIESKI...ROSE CITY AND
PHILBROOK.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 U.S. HIGHWAY 10 IN MINNESOTA BETWEEN MILE MARKERS 115 AND 148.
 U.S. HIGHWAY 71 BETWEEN MILE MARKERS 178 AND 214.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4631 9451 4633 9443 4623 9440 4616 9438
      4615 9424 4602 9414 4586 9456 4585 9506
      4611 9524 4611 9514 4630 9516 4631 9485
      4634 9464
TIME...MOT...LOC 0620Z 331DEG 37KT 4628 9452 4618 9480 4619 9533 

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

CLF
1 follow-up statement
176 
WWUS53 KMPX 130642
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
142 AM CDT THU AUG 13 2015

MNC041-097-153-130700-
/O.CON.KMPX.SV.W.0126.000000T0000Z-150813T0700Z/
MORRISON MN-DOUGLAS MN-TODD MN-
142 AM CDT THU AUG 13 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR SOUTHWESTERN MORRISON...NORTHEASTERN DOUGLAS AND SOUTHERN TODD
COUNTIES...

AT 141 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM CAMP RIPLEY TO NEAR SWANVILLE TO NEAR BELLE RIVER...
MOVING SOUTHEAST AT 45 MPH.

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

SOURCE...RADAR INDICATED. 

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

THESE SEVERE STORMS WILL BE NEAR...
  RANDALL AND CAMP RIPLEY AROUND 145 AM CDT.
  LITTLE FALLS...SWANVILLE AND FLENSBURG AROUND 150 AM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
BURTRUM...LITTLE SAUK...LITTLE FALLS AIRPORT...ROUND PRAIRIE...LONG
PRAIRIE AIRPORT...CLOTHO...SOBIESKI...ROSE CITY AND CAMP RIPLEY
JUNCTION.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 U.S. HIGHWAY 10 IN MINNESOTA BETWEEN MILE MARKERS 131 AND 148.
 U.S. HIGHWAY 71 BETWEEN MILE MARKERS 178 AND 196.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4616 9449 4615 9424 4602 9414 4586 9456
      4585 9506 4611 9524 4611 9514 4610 9466
TIME...MOT...LOC 0641Z 331DEG 37KT 4610 9438 4600 9466 4601 9519 

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

CLF

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 8:22 PM CDTSevere Thunderstorm WarningMPXMorrison53 min
Aug 12, 9:14 PM CDTSevere Thunderstorm WarningMPXMorrison46 min
Aug 13, 12:47 AM CDTSpecial Weather StatementMPXTodd28 min
Aug 13, 12:58 AM CDTSevere Thunderstorm WarningMPXMorrison, Todd32 min
Aug 13, 2:04 AM CDTSpecial Weather StatementMPXStearns26 min
Aug 13, 3:01 AM CDTSpecial Weather StatementMPXMeeker29 min
Aug 13, 3:18 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker27 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2015Every 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.