Alert archive / Minnesota / Tornado Warnings in 2013

Tornado Warning 14, NWS Grand Forks, ND

August 26, 2013Otter Tail County, Wadena County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Aug 26, 2013, 7:41 PM CDT for Otter Tail County, Wadena County, Minnesota. It was in force for 49 min. 12 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 26, 2013, 7:41 PM CDT (00:41 UTC)
Expired
Aug 26, 2013, 8:30 PM CDT
In force
49 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.25 in

Counties Otter Tail County, MN, Wadena County, MN

The radar

The Minneapolis radar (KMPX), 208 km from the middle of the area, began a volume at 00:44 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 26, 7:43 PM CDTHAIL 1.51 N New York Mills, MN
Aug 26, 7:45 PM CDTHAIL 1.5New York Mills, MN
Aug 26, 7:45 PM CDTHAIL 2.52 Ese New York Mills, MNHAIL UP TO 2 TO 3 INCHES IN DIAMETER AND 1.31 INCHES OF RAIN.
Aug 26, 7:45 PM CDTHAIL 2.5New York Mills, MNHAIL UP TO 2 TO 3 INCHES IN DIAMETER AND 1.31 INCHES OF RAIN.
Aug 26, 7:45 PM CDTHAIL 3New York Mills, MNSEVERAL PHOTOS FROM MEDIA OF HAIL LARGER THAN BASEBALL SIZE.
Aug 26, 7:45 PM CDTHAIL 3.75New York Mills, MNSEVERAL PHOTOS FROM MEDIA OF HAIL LARGER THAN BASEBALL SIZE.
Aug 26, 7:47 PM CDTHAIL 3New York Mills, MNVARIOUS MEDIA SOURCES POSTED REPORTS AND PHOTOS OF HAIL LARGER THAN BASEBALL SIZE.
Aug 26, 7:50 PM CDTFUNNEL CLOUD2 E New York Mills, MNA PERSISTANT WALL CLOUD WAS OBSERVED TRAVELING PARALLEL TO HIGHWAY 10 FROM PERHAM INTO NEW YORK MILLS. A BRIEF FUNNEL WAS OBSERVED JUST TO THE EAST OF NEW YORK MILLS BEFORE HEAVY RAINS OBSCURRED THE OBSERVERS VIEW.
Aug 26, 7:51 PM CDTHAIL 1.25New York Mills, MNQUARTER TO HALF DOLLAR-SIZED HAIL. WINDS IN EXCESS OF 60 MPH ALSO REPORTED JUST NORTHWEST OF NEW YORK MILLS.
Aug 26, 7:54 PM CDTHAIL 1.75Bluffton, MNRELAYED VIA SOCIAL MEDIA.
Aug 26, 8:15 PM CDTTORNADO2 Nw Wadena, MNVIDEO OF A BRIEF TOUCHDOWN 100 YARDS NW OF THE HIGHWAY 10, HIGHWAY 75 INTERSECTION. THE VORTEX APPEARD TO BE ROUGHLY ONE MILE TO THE N-NE PARALLEL TO HWY 75.
Aug 26, 8:22 PM CDTHAIL 1.53 N Verndale, MN

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 26, 5:41 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.7 hours before the alert went out and 206 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 2013-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2586 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2013-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 square meters per square second.19395878Sfc1 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
2586 J/kg
Mixed-layer CIN
-114 J/kg
Mixed-layer LCL
1399 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.7
Supercell composite
15.4

Open this sounding in Storm Lab

The text

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

111 
WFUS53 KFGF 270041
TORFGF
MNC111-159-270130-
/O.NEW.KFGF.TO.W.0014.130827T0041Z-130827T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
741 PM CDT MON AUG 26 2013

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA...
  SOUTHERN WADENA COUNTY IN CENTRAL MINNESOTA...

* UNTIL 830 PM CDT

* AT 738 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR NEW YORK MILLS...AND MOVING EAST AT 30
  MPH.

  HAZARD...TORNADO AND HALF DOLLAR SIZE HAIL.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...SPORADIC DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.

* THIS DANGEROUS STORM WILL BE NEAR...
  DEER CREEK AROUND 750 PM CDT.
  BLUFFTON AROUND 755 PM CDT.
  WADENA AROUND 805 PM CDT.
  VERNDALE AROUND 820 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE ALDRICH AND STAPLES AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4636 9477 4636 9514 4629 9515 4631 9540
      4643 9555 4661 9549 4651 9477 4640 9477
      4639 9476
TIME...MOT...LOC 0041Z 284DEG 26KT 4650 9538

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

HOPPES/HOPKINS
3 follow-up statements
641 
WWUS53 KFGF 270056
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
756 PM CDT MON AUG 26 2013

MNC111-159-270130-
/O.CON.KFGF.TO.W.0014.000000T0000Z-130827T0130Z/
WADENA MN-OTTER TAIL MN-
756 PM CDT MON AUG 26 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL OTTER TAIL
AND SOUTHERN WADENA COUNTIES UNTIL 830 PM CDT...

AT 750 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR BLUFFTON...AND MOVING EAST AT 30 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...SPORADIC DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES. AT 
754 PM CDT...GOLFBALL SIZE HAIL WAS REPORTED IN BLUFFTON.

THIS DANGEROUS STORM WILL BE NEAR...
  WADENA AROUND 805 PM CDT.
  VERNDALE AROUND 820 PM CDT.
  ALDRICH AROUND 825 PM CDT.
  STAPLES AIRPORT AROUND 830 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4636 9477 4636 9514 4629 9515 4631 9540
      4643 9555 4661 9549 4651 9477 4640 9477
      4639 9476
TIME...MOT...LOC 0055Z 284DEG 26KT 4647 9524

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

$$

HOPPES/HOPKINS
653 
WWUS53 KFGF 270108
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
808 PM CDT MON AUG 26 2013

MNC111-159-270130-
/O.CON.KFGF.TO.W.0014.000000T0000Z-130827T0130Z/
WADENA MN-OTTER TAIL MN-
808 PM CDT MON AUG 26 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL OTTER TAIL
AND SOUTHERN WADENA COUNTIES UNTIL 830 PM CDT...

AT 804 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR WADENA...AND MOVING EAST AT 30 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...SPORADIC DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.

THIS DANGEROUS STORM WILL BE NEAR...
  VERNDALE AROUND 820 PM CDT.
  ALDRICH AROUND 825 PM CDT.
  STAPLES AIRPORT AROUND 830 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4636 9477 4636 9514 4629 9515 4631 9540
      4643 9555 4661 9549 4651 9477 4640 9477
      4639 9476
TIME...MOT...LOC 0108Z 285DEG 26KT 4644 9511

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

$$

HOPPES/HOPKINS
756 
WWUS53 KFGF 270116
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
816 PM CDT MON AUG 26 2013

MNC111-270126-
/O.CAN.KFGF.TO.W.0014.000000T0000Z-130827T0130Z/
OTTER TAIL MN-
816 PM CDT MON AUG 26 2013

...THE TORNADO WARNING FOR EAST CENTRAL OTTER TAIL COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4636 9477 4636 9514 4636 9516 4656 9515
      4651 9477 4640 9477 4639 9476
TIME...MOT...LOC 0116Z 285DEG 26KT 4642 9503

$$

MNC159-270130-
/O.CON.KFGF.TO.W.0014.000000T0000Z-130827T0130Z/
WADENA MN-
816 PM CDT MON AUG 26 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN WADENA COUNTY
UNTIL 830 PM CDT...

AT 813 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR VERNDALE...AND MOVING EAST AT 30 MPH.

HAZARD...TORNADO AND PING PONG BALL SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...SPORADIC DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.

THIS DANGEROUS STORM WILL BE NEAR...
  ALDRICH AROUND 825 PM CDT.
  STAPLES AIRPORT AROUND 830 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4636 9477 4636 9514 4636 9516 4656 9515
      4651 9477 4640 9477 4639 9476
TIME...MOT...LOC 0116Z 285DEG 26KT 4642 9503

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

HOPPES/HOPKINS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 7:33 PM CDTAreal Flood AdvisoryFGFOtter Tail, Wadena3 hr
Aug 26, 8:25 PM CDTTornado WarningFGFWadena35 min

Nearby

Tornado 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.