Alert archive / North Dakota / Tornado Warnings in 2013

Tornado Warning 10, NWS Grand Forks, ND

August 6, 2013Richland County, North Dakota; Wilkin County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Aug 6, 2013, 4:25 PM CDT for Richland County, North Dakota; Wilkin County, Minnesota. It was in force for 50 min. 14 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
Aug 6, 2013, 4:25 PM CDT (21:25 UTC)
Expired
Aug 6, 2013, 5:15 PM CDT
In force
50 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

Counties Wilkin County, MN, Richland County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 137 km from the middle of the area, began a volume at 21:26 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 6, 4:26 PM CDTTORNADO 12 Sw Galchutt, NDA PARTIALLY RAIN AND HAIL WRAPPED TORNADO TRACKED INTERMITTENTLY FOR ABOUT 3 MILES TO AROUND 3 S OF GALCHUTT BY 431 PM CDT. THE TORNADO SNAPPED SEVERAL TREES IN A SERIES OF SHELTER BELTS AND THREW LARGE TREE LIMBS WELL INTO THE FIELDS. PEAK WINDS ESTIMATED TO
Aug 6, 4:27 PM CDTHAIL 1.751 W Galchutt, ND
Aug 6, 4:35 PM CDTHAIL 1.753 S Galchutt, NDGOLF BALL SIZED HAIL COVERING THE INTERSTATE NEAR MILE MARKER 31.
Aug 6, 4:35 PM CDTHAIL 1.75Dwight, NDA SWATH OF LARGE HAIL AND DAMAGING WINDS TO 70 MPH PRODUCED WIDESPREAD TREE AND CROP DAMAGE ACROSS CENTRAL DWIGHT-WEST TOWNSHIP. IN THE TOWN OF DWIGHT... A FEW LARGE TREES WERE SNAPPED AT THE BASE WHILE LARGE TREE BRANCHES WERE BROKEN OFF THROUGHOUT THE TOWN.
Aug 6, 4:40 PM CDTFUNNEL CLOUD4 Wnw Wahpeton, NDA PERSISTENT WALL CLOUD WITH A BRIEF FUNNEL WAS VIEWED FROM NORTHWEST WAHPETON.
Aug 6, 4:40 PM CDTHAIL 24 Nw Wahpeton, NDHAIL UP TO HEN EGG SIZED OCCURRED FOR AT LEAST 5 MINUTES... ENDING AROUND 445 PM CDT.
Aug 6, 4:45 PM CDTTSTM WND DMGBreckenridge, MNNUMEROUS LARGE TREES WERE BLOWN DOWN. POWER POLES AND POWER LINES WERE DOWN. A ROOF WAS BLOWN OFF OR COLLAPSED ON A STEEL BUILDING.
Aug 6, 4:45 PM CDTTSTM WND GST 751 N Wahpeton, NDWIND DRIVEN HAIL PRODUCED WIDESPREAD TREE DAMAGE ACROSS NORTHERN AND EASTERN NEIGHBORHOODS IN WAHPETON. NUMEROUS LARGE TREES OR TREE LIMBS WERE SNAPPED OFF NEAR GROUND LEVEL WHILE NEIGHBORHOODS WERE LITTERED WITH SMALLER BRANCHES...LEAF DEBRIS AND HAIL. PEAK W
Aug 6, 4:45 PM CDTHAIL 1.54 Nw Wahpeton, NDLARGE HAIL OCCURING... BUT UNABLE TO ESTIMATE SIZE AT THIS TIME.
Aug 6, 4:46 PM CDTTSTM WND GST 80Breckenridge, MNNUMEROUS LARGE TREES WERE BLOWN DOWN. POWER POLES AND POWER LINES WERE DOWN. AN ENTIRE STEEL ROOF WAS TORN OFF ITS RAFTERS AND FLUNG SOUTHEASTWARD ACROSS MINNESOTA AVENUE. IMPACTS FROM THE DEBRIS BROKE DOWN A STEEL STREET LIGHT POLE AND CAUSED INCIDENTAL DAMAG
Aug 6, 4:46 PM CDTNON-TSTM WND GST 80Breckenridge, MNNUMEROUS LARGE TREES WERE BLOWN DOWN. POWER POLES AND POWER LINES WERE DOWN. AN ENTIRE STEEL ROOF WAS TORN OFF ITS RAFTERS AND FLUNG SOUTHEASTWARD ACROSS MINNESOTA AVENUE. IMPACTS FROM THE DEBRIS BROKE DOWN A STEEL STREET LIGHT POLE AND CAUSED INCIDENTAL DAMAG
Aug 6, 4:51 PM CDTHAIL 1.752 E Breckenridge, MNALSO REPORTED STRONG WINDS AND VERY HEAVY RAINFALL.
Aug 6, 4:55 PM CDTTSTM WND GST 753 E Breckenridge, MNHAIL UP TO 1.5 INCH DIAMTER AND VERY STRONG WINDS... ESTIMATED TO 75 MPH WHICH BROKE DOWN NUMEROUS LARGE TREE BRANCHES.
Aug 6, 4:55 PM CDTHAIL 1.53 E Breckenridge, MNSOME SMALL BRANCHES DOWN AS WELL.

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
Aug 6, 2:24 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.4 hours before the alert went out and 210 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, Aberdeen, SD at 12:00Z on 2013-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 45 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, Aberdeen, SD at 12:00Z on 2013-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 269 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
45 J/kg
Mixed-layer CIN
-260 J/kg
Mixed-layer LCL
1198 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
269 m²/s²
0-3 km storm-relative helicity
235 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.

489 
WFUS53 KFGF 062125
TORFGF
MNC167-NDC077-062215-
/O.NEW.KFGF.TO.W.0010.130806T2125Z-130806T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
425 PM CDT TUE AUG 6 2013

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL WILKIN COUNTY IN WEST CENTRAL MINNESOTA...
  CENTRAL RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 515 PM CDT

* AT 422 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR GALCHUTT...AND MOVING EAST AT 30 MPH.

  HAZARD...TORNADO AND GOLF BALL SIZE HAIL.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
           ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS
           WILL BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS
           LIKELY.

* THIS DANGEROUS STORM WILL BE NEAR...
  ABERCROMBIE AROUND 430 PM CDT.
  DWIGHT AND MCCAULEYVILLE AROUND 435 PM CDT.
  BRUSHVALE AROUND 440 PM CDT.
  WAHPETON AND BRECKENRIDGE AROUND 450 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE KENT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GRAND
FORKS.

&&

LAT...LON 4647 9657 4614 9645 4631 9699 4648 9694
TIME...MOT...LOC 2125Z 287DEG 26KT 4637 9682

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

GUST
2 follow-up statements
717 
WWUS53 KFGF 062136
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
436 PM CDT TUE AUG 6 2013

MNC167-NDC077-062215-
/O.CON.KFGF.TO.W.0010.000000T0000Z-130806T2215Z/
RICHLAND ND-WILKIN MN-
436 PM CDT TUE AUG 6 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL WILKIN AND EAST
CENTRAL RICHLAND COUNTIES UNTIL 515 PM CDT...

AT 431 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR DWIGHT...AND MOVING SOUTHEAST AT 35 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
         ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL
         BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS LIKELY.

THIS DANGEROUS STORM WILL BE NEAR...
  WAHPETON AROUND 445 PM CDT.
  BRECKENRIDGE AROUND 450 PM CDT.
  DORAN AROUND 500 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GRAND
FORKS.

&&

LAT...LON 4629 9687 4646 9684 4647 9657 4614 9645
TIME...MOT...LOC 2136Z 294DEG 29KT 4633 9670

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$
GUST
420 
WWUS53 KFGF 062154
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
454 PM CDT TUE AUG 6 2013

MNC167-NDC077-062203-
/O.CAN.KFGF.TO.W.0010.000000T0000Z-130806T2215Z/
RICHLAND ND-WILKIN MN-
454 PM CDT TUE AUG 6 2013

...THE TORNADO WARNING FOR CENTRAL WILKIN AND EAST CENTRAL RICHLAND
COUNTIES IS CANCELLED...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
BEEN CANCELLED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN 
EFFECT FOR WILKIN COUNTY.

A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA UNTIL 9PM CDT. 

LAT...LON 4629 9687 4646 9684 4647 9657 4614 9645
TIME...MOT...LOC 2153Z 294DEG 29KT 4627 9652

$$

GUST

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 6, 3:19 PM CDTSpecial Weather StatementFGFRansom56 min
Aug 6, 3:22 PM CDTSpecial Weather StatementFGFRansom53 min
Aug 6, 3:26 PM CDTSevere Thunderstorm WarningFGFBarnes, Cass, Ransom64 min
Aug 6, 3:50 PM CDTTornado WarningFGFRansom, Richland40 min
Aug 6, 4:28 PM CDTSevere Thunderstorm WarningFGFRansom, Richland, Sargent62 min
Aug 6, 5:51 PM CDTSevere Thunderstorm WarningFGFRichland54 min
Aug 6, 4:50 PM CDTSevere Thunderstorm WarningFGFGrant, Otter Tail, Wilkin55 min

Nearby

Tornado Warnings in North Dakota, 2013Tornado Warnings in Minnesota, 2013Every tornado warning in 2013Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.