Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 68, NWS Twin Cities, MN

July 21, 20144 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 21, 2014, 11:08 PM CDT for 4 counties in Minnesota. It was in force for 67 min. 4 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
Jul 21, 2014, 11:08 PM CDT (04:08 UTC)
Expired
Jul 22, 2014, 12:15 AM CDT
In force
67 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
70.0 mph

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

The radar

The Minneapolis radar (KMPX), 178 km from the middle of the area, began a volume at 04:09 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
Jul 21, 11:13 PM CDTTSTM WND DMG2 Wnw Glenwood, MNWHEAT CROP BLOWN DOWN.
Jul 21, 11:14 PM CDTTSTM WND GST 49Glenwood Airport, MN
Jul 21, 11:25 PM CDTTSTM WND DMG1 S Staples, MNPOWER OUTAGES AND ROOF DAMAGE
Jul 21, 11:39 PM CDTHAIL 16 S Long Prairie, MNSOUTH OF LONG PRAIRIE ON STATE HIGHWAY 287.

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.

IssuedProductOfficeLasted
Jul 21, 9:24 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.1 hours before the alert went out and 176 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 2014-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3298 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 2014-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.193958Sfc1 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
3298 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1091 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.7

Open this sounding in Storm Lab

The text

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

768 
WUUS53 KMPX 220408
SVRMPX
MNC041-121-145-153-220515-
/O.NEW.KMPX.SV.W.0068.140722T0408Z-140722T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1108 PM CDT MON JUL 21 2014

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 1215 AM CDT

* AT 1107 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 8 MILES EAST OF PARKERS PRAIRIE TO LAKE OSAKIS TO 7
  MILES SOUTHEAST OF ALEXANDRIA TO GLENWOOD...AND MOVING EAST AT 50
  MPH.

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

  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.

* LOCATIONS IMPACTED INCLUDE...
  LONG PRAIRIE...LAKE OSAKIS...SAUK CENTRE...GLENWOOD AIRPORT...
  HEWITT...VILLARD...BERTHA...EAGLE BEND...CLOTHO...GROVE LAKE...
  CLARISSA...WESTPORT...WEST UNION...BROWERVILLE...LONG PRAIRIE
  AIRPORT...LITTLE SAUK...SAUK CENTRE AIRPORT...PHILBROOK...BURTRUM
  AND GREY EAGLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4636 9466 4578 9464 4557 9498 4561 9562
      4589 9537 4612 9527 4612 9515 4633 9517
      4636 9515
TIME...MOT...LOC 0409Z 261DEG 42KT 4615 9512 4586 9516
          4583 9522 4579 9528 4572 9536

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

$$

BORGHOFF
3 follow-up statements
820 
WWUS53 KMPX 220427
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1127 PM CDT MON JUL 21 2014

MNC041-220437-
/O.CAN.KMPX.SV.W.0068.000000T0000Z-140722T0515Z/
DOUGLAS MN-
1127 PM CDT MON JUL 21 2014

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN DOUGLAS COUNTY IS
CANCELLED...

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

LAT...LON 4636 9466 4578 9464 4557 9498 4560 9549
      4576 9521 4576 9514 4612 9505 4636 9506
TIME...MOT...LOC 0427Z 262DEG 43KT 4622 9470 4589 9486
          4569 9510

$$

MNC121-145-153-220515-
/O.CON.KMPX.SV.W.0068.000000T0000Z-140722T0515Z/
POPE MN-STEARNS MN-TODD MN-
1127 PM CDT MON JUL 21 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR TODD...
NORTHWESTERN STEARNS AND NORTHEASTERN POPE COUNTIES UNTIL 1215 AM
CDT...

AT 1125 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 11 MILES SOUTH OF STAPLES TO 7 MILES SOUTH OF LONG
PRAIRIE TO 9 MILES SOUTHWEST OF SAUK CENTRE...AND MOVING EAST AT 50
MPH.

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

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.

LOCATIONS IMPACTED INCLUDE...
SAUK CENTRE...SAUK CENTRE AIRPORT...GREY EAGLE...BURTRUM...NORTH
SHORE AND PLEASANT BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4636 9466 4578 9464 4557 9498 4560 9549
      4576 9521 4576 9514 4612 9505 4636 9506
TIME...MOT...LOC 0427Z 262DEG 43KT 4622 9470 4589 9486
          4569 9510

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

$$

BORGHOFF
248 
WWUS53 KMPX 220450
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1150 PM CDT MON JUL 21 2014

MNC121-220501-
/O.CAN.KMPX.SV.W.0068.000000T0000Z-140722T0515Z/
POPE MN-
1150 PM CDT MON JUL 21 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN POPE COUNTY IS
CANCELLED...

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

LAT...LON 4558 9513 4595 9483 4617 9466 4578 9464
      4557 9498
TIME...MOT...LOC 0451Z 262DEG 43KT 4626 9429 4593 9445
          4573 9469

$$

MNC145-153-220515-
/O.CON.KMPX.SV.W.0068.000000T0000Z-140722T0515Z/
STEARNS MN-TODD MN-
1150 PM CDT MON JUL 21 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
TODD AND NORTHWESTERN STEARNS COUNTIES UNTIL 1215 AM CDT...

AT 1148 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 10 MILES SOUTHWEST OF BRAINERD TO 8 MILES SOUTHWEST OF
LITTLE FALLS TO 10 MILES EAST OF SAUK CENTRE...AND MOVING EAST AT 50
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.

LOCATIONS IMPACTED INCLUDE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4558 9513 4595 9483 4617 9466 4578 9464
      4557 9498
TIME...MOT...LOC 0451Z 262DEG 43KT 4626 9429 4593 9445
          4573 9469

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

$$

BORGHOFF
196 
WWUS53 KMPX 220512
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1212 AM CDT TUE JUL 22 2014

MNC145-153-220522-
/O.EXP.KMPX.SV.W.0068.000000T0000Z-140722T0515Z/
STEARNS MN-TODD MN-
1212 AM CDT TUE JUL 22 2014

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TODD AND
NORTHWESTERN STEARNS COUNTIES WILL EXPIRE AT 1215 AM CDT...

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

LAT...LON 4558 9513 4595 9483 4617 9466 4578 9464
      4557 9498
TIME...MOT...LOC 0512Z 262DEG 43KT 4629 9393 4596 9409
          4576 9433

$$

BORGHOFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 10:13 PM CDTSevere Thunderstorm WarningMPXStevens47 min
Jul 21, 10:33 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope42 min
Jul 21, 11:36 PM CDTSevere Thunderstorm WarningMPXBenton, Morrison, Stearns39 min
Jul 22, 12:11 AM CDTSpecial Weather StatementMPXBenton, Isanti, Kanabec, Mille Lacs79 min
Jul 22, 12:47 AM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs58 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.