Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 91, NWS Twin Cities, MN

August 24, 20145 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 24, 2014, 2:40 AM CDT for 5 counties in Minnesota. It was in force for 65 min. 1 report 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 24, 2014, 2:40 AM CDT (07:40 UTC)
Expired
Aug 24, 2014, 3:45 AM CDT
In force
65 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Douglas County, MN, Kandiyohi County, MN, Pope County, MN, Stearns County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 179 km from the middle of the area, began a volume at 07:41 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

TimeReportWhereRemark
Aug 24, 2:43 AM CDTTSTM WND DMG4 Ne Forada, MNOUT BUILDING DESTROYED AND TREES DOWN. TIME OF DAMAGE ESTIMATED BASED ON RADAR DATA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 7.7 hours before the alert went out and 177 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 2014-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 98 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 2014-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.1939Sfc1 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
98 J/kg
Mixed-layer CIN
-219 J/kg
Mixed-layer LCL
961 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
130 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.

002 
WUUS53 KMPX 240740
SVRMPX
MNC041-067-121-145-153-240845-
/O.NEW.KMPX.SV.W.0091.140824T0740Z-140824T0845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
240 AM CDT SUN AUG 24 2014

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA...
  NORTHWESTERN KANDIYOHI COUNTY IN CENTRAL MINNESOTA...
  EASTERN POPE COUNTY IN WEST CENTRAL MINNESOTA...
  NORTHWESTERN STEARNS COUNTY IN CENTRAL MINNESOTA...
  TODD COUNTY IN CENTRAL MINNESOTA...

* UNTIL 345 AM CDT

* AT 237 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 11 MILES SOUTH OF BATTLE LAKE TO 7 MILES NORTHEAST
  OF GLENWOOD TO MONSON LAKE STATE PARK...AND MOVING NORTHEAST AT 55
  MPH.

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

  SOURCE...RADAR INDICATED.

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  LAKE CARLOS STATE PARK AROUND 245 AM CDT.
  LAKE OSAKIS AROUND 255 AM CDT.
  SAUK CENTRE AROUND 305 AM CDT.
  LONG PRAIRIE AROUND 315 AM CDT.
  STAPLES AROUND 330 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE LEAF VALLEY...GROVE LAKE...
WESTPORT...NELSON...BELLE RIVER...OSAKIS...MILTONA...CARLOS...BROOTEN
AND BELGRADE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4636 9471 4636 9466 4635 9464 4579 9465
      4516 9525 4570 9527 4611 9564 4612 9551
      4611 9516 4637 9515 4638 9475
TIME...MOT...LOC 0739Z 211DEG 48KT 4615 9567 4574 9526
          4531 9522

HAIL...0.75IN
WIND...60MPH

$$
3 follow-up statements
592 
WWUS53 KMPX 240805
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
305 AM CDT SUN AUG 24 2014

MNC067-240816-
/O.CAN.KMPX.SV.W.0091.000000T0000Z-140824T0845Z/
KANDIYOHI MN-
305 AM CDT SUN AUG 24 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN KANDIYOHI COUNTY
IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE 
WARNED AREA.

LAT...LON 4635 9466 4579 9465 4541 9502 4542 9518
      4611 9528 4612 9515 4634 9517 4634 9515
      4637 9514 4638 9475
TIME...MOT...LOC 0806Z 211DEG 48KT 4646 9540 4605 9499
          4562 9495

$$

MNC041-121-145-153-240845-
/O.CON.KMPX.SV.W.0091.000000T0000Z-140824T0845Z/
DOUGLAS MN-POPE MN-STEARNS MN-TODD MN-
305 AM CDT SUN AUG 24 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR TODD...
NORTHWESTERN STEARNS...EASTERN POPE AND EASTERN DOUGLAS COUNTIES
UNTIL 345 AM CDT...

AT 304 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 8 MILES NORTH OF HENNING TO 8 MILES NORTHWEST OF LONG
PRAIRIE TO 10 MILES SOUTH OF SAUK CENTRE...AND MOVING NORTHEAST AT 55
MPH.

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

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

SEVERE THUNDERSTORMS WILL BE NEAR...
  LONG PRAIRIE AROUND 315 AM CDT.
  STAPLES AROUND 330 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE MELROSE...LONG PRAIRIE
AIRPORT...HEWITT...BERTHA...BROWERVILLE...ST ROSA...PLEASANT BEACH...
GREY EAGLE...NORTH SHORE AND BURTRUM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4635 9466 4579 9465 4541 9502 4542 9518
      4611 9528 4612 9515 4634 9517 4634 9515
      4637 9514 4638 9475
TIME...MOT...LOC 0806Z 211DEG 48KT 4646 9540 4605 9499
          4562 9495

HAIL...0.75IN
WIND...60MPH

$$
304 
WWUS53 KMPX 240817
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
317 AM CDT SUN AUG 24 2014

MNC041-121-240827-
/O.CAN.KMPX.SV.W.0091.000000T0000Z-140824T0845Z/
DOUGLAS MN-POPE MN-
317 AM CDT SUN AUG 24 2014

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN POPE AND EASTERN
DOUGLAS COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE
WARNED AREA.

LAT...LON 4635 9466 4579 9465 4541 9502 4542 9513
      4610 9514 4634 9517 4634 9515 4637 9514
      4638 9475
TIME...MOT...LOC 0817Z 211DEG 48KT 4659 9528 4617 9488
          4574 9484

$$

MNC145-153-240845-
/O.CON.KMPX.SV.W.0091.000000T0000Z-140824T0845Z/
STEARNS MN-TODD MN-
317 AM CDT SUN AUG 24 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR TODD AND
NORTHWESTERN STEARNS COUNTIES UNTIL 345 AM CDT...

AT 315 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 12 MILES NORTHWEST OF WADENA TO 12 MILES NORTH OF LONG
PRAIRIE TO SAUK CENTRE...AND MOVING NORTHEAST AT 55 MPH.

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

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

SEVERE THUNDERSTORMS WILL BE NEAR...
  STAPLES AROUND 330 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE PLEASANT BEACH...NORTH
SHORE...GREY EAGLE...PHILBROOK AND BURTRUM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4635 9466 4579 9465 4541 9502 4542 9513
      4610 9514 4634 9517 4634 9515 4637 9514
      4638 9475
TIME...MOT...LOC 0817Z 211DEG 48KT 4659 9528 4617 9488
          4574 9484

HAIL...0.75IN
WIND...60MPH

$$
820 
WWUS53 KMPX 240833
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
333 AM CDT SUN AUG 24 2014

MNC145-153-240845-
/O.CON.KMPX.SV.W.0091.000000T0000Z-140824T0845Z/
STEARNS MN-TODD MN-
333 AM CDT SUN AUG 24 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN TODD
AND CENTRAL STEARNS COUNTIES UNTIL 345 AM CDT...

AT 331 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 21 MILES NORTH OF WADENA TO STAPLES TO 10 MILES
SOUTHEAST OF LONG PRAIRIE...AND MOVING NORTHEAST AT 55 MPH.

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

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

SEVERE THUNDERSTORMS WILL AFFECT MAINLY RURAL AREAS OF CENTRAL
STEARNS AND EASTERN TODD COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4579 9465 4543 9500 4595 9498 4637 9500
      4638 9475 4635 9466
TIME...MOT...LOC 0833Z 211DEG 48KT 4677 9511 4635 9472
          4592 9468

HAIL...0.75IN
WIND...60MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 2:15 AM CDTSevere Thunderstorm WarningMPXChippewa, Douglas, Kandiyohi, Pope, Swift30 min
Aug 24, 5:03 PM CDTSevere Thunderstorm WarningMPXBenton, Morrison57 min
Aug 24, 5:18 PM CDTSpecial Weather StatementMPXRamsey42 min
Aug 24, 5:24 PM CDTSpecial Weather StatementMPXDakota51 min
Aug 24, 5:29 PM CDTSevere Thunderstorm WarningMPXBenton, Morrison46 min
Aug 24, 5:38 PM CDTTornado WarningMPXBenton, Morrison37 min
Aug 24, 5:49 PM CDTSevere Thunderstorm WarningMPXWright41 min
Aug 24, 6:02 PM CDTTornado WarningMPXMille Lacs43 min
Aug 24, 6:08 PM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs, Morrison52 min
Aug 24, 6:31 PM CDTSpecial Weather StatementMPXSherburne29 min
Aug 24, 6:57 PM CDTSpecial Weather StatementMPXMille Lacs48 min
Aug 24, 6:59 PM CDTTornado WarningMPXKanabec31 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2014Every severe thunderstorm warning in 2014

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.