Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 90, NWS Twin Cities, MN

August 24, 20145 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 24, 2014, 2:15 AM CDT for 5 counties in Minnesota. It was in force for 30 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, 2:15 AM CDT (07:15 UTC)
Expired
Aug 24, 2014, 2:45 AM CDT
In force
30 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Chippewa County, MN, Douglas County, MN, Kandiyohi County, MN, Pope County, MN, Swift County, MN

The radar

The Minneapolis radar (KMPX), 172 km from the middle of the area, began a volume at 07:16 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, 7.3 hours before the alert went out and 170 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.

380 
WUUS53 KMPX 240715
SVRMPX
MNC023-041-067-121-151-240745-
/O.NEW.KMPX.SV.W.0090.140824T0715Z-140824T0745Z/

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 245 AM CDT

* AT 213 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM HOFFMAN TO GLACIAL LAKES STATE PARK TO 15 MILES
  NORTHEAST OF MONTEVIDEO...AND MOVING NORTHEAST AT 45 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 MINNEWASKA AROUND 225 AM CDT.
  GLENWOOD AROUND 230 AM CDT.   
  ALEXANDRIA AROUND 240 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE SWIFT FALLS...STARBUCK...
MURDOCK...KENSINGTON...FARWELL...LOWRY...LONG BEACH...KERKHOVEN...
HOLMES CITY AND GILCHRIST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4589 9515 4513 9511 4489 9550 4542 9562
      4561 9576 4596 9578 4612 9552 4612 9530
TIME...MOT...LOC 0715Z 225DEG 40KT 4582 9581 4549 9550
          4505 9541

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

$$
1 follow-up statement
810 
WWUS53 KMPX 240735
SVSMPX

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

MNC023-240745-
/O.CAN.KMPX.SV.W.0090.000000T0000Z-140824T0745Z/
CHIPPEWA MN-
235 AM CDT SUN AUG 24 2014

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CHIPPEWA COUNTY IN
WEST CENTRAL MINNESOTA IS CANCELLED...

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

LAT...LON 4589 9515 4516 9512 4516 9556 4543 9562
      4561 9576 4596 9578 4612 9553 4612 9530
TIME...MOT...LOC 0735Z 225DEG 40KT 4598 9558 4565 9527
          4521 9519

$$

MNC041-067-121-151-240745-
/O.CON.KMPX.SV.W.0090.000000T0000Z-140824T0745Z/
DOUGLAS MN-KANDIYOHI MN-POPE MN-SWIFT MN-
235 AM CDT SUN AUG 24 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
SWIFT...POPE...NORTHWESTERN KANDIYOHI AND DOUGLAS COUNTIES UNTIL 245
AM CDT...

AT 232 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 12 MILES NORTHEAST OF HOFFMAN TO GLENWOOD TO 9 MILES
NORTHWEST OF WILLMAR...AND MOVING NORTHEAST AT 45 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...
  ALEXANDRIA AROUND 240 AM CDT.
  LAKE CARLOS STATE PARK AROUND 245 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE GROVE LAKE...ALEXANDRIA
AIRPORT...VILLARD...GARFIELD...FORADA...MILLERVILLE...LEAF VALLEY...
NELSON...WESTPORT AND CARLOS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4589 9515 4516 9512 4516 9556 4543 9562
      4561 9576 4596 9578 4612 9553 4612 9530
TIME...MOT...LOC 0735Z 225DEG 40KT 4598 9558 4565 9527
          4521 9519

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 2:40 AM CDTSevere Thunderstorm WarningMPXDouglas, Kandiyohi, Pope, Stearns, Todd65 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.