Alert archive / Minnesota / Tornado Warnings in 2017

Tornado Warning 21, NWS Grand Forks, ND

June 21, 2017Richland County, North Dakota; Otter Tail County, Wilkin County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jun 21, 2017, 6:21 PM CDT for Richland County, North Dakota; Otter Tail County, Wilkin County, Minnesota. It was in force for 24 min. 3 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
Jun 21, 2017, 6:21 PM CDT (23:21 UTC)
Expired
Jun 21, 2017, 6:45 PM CDT
In force
24 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Otter Tail County, MN, Wilkin County, MN, Richland County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 152 km from the middle of the area, began a volume at 23:22 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
Jun 21, 6:24 PM CDTTORNADO 06 Nne Breckenridge, MNVIDEO AND PHOTOGRAPHIC EVIDENCE SHOW THAT THIS TORNADO TOUCHED DOWN AND TRACKED TO THE EAST SOUTHEAST OVER OPEN FIELDS FOR A HALF MILE OF LESS...AND ENDED BY AROUND 625 PM CDT. NO DAMAGE WAS NOTED THOUGH A SIZABLE DUST PLUME WAS GENERATED. REPORT WAS FIRST MAD
Jun 21, 6:39 PM CDTTORNADO 02 Nne Foxhome, MNTHE TORNADO TOUCHDOWN WAS VIEWED AND PHOTOGRAPHED THOUGH IT WAS ENSHROUDED IN EITHER DUST OR RAIN AT TIMES. THIS TORNADO APPEARED TO TRACK INTERMITTENTLY FOR ABOUT 1.5 MILES TO ABOUT 2 NE OF FOXHOME BY 642 PM CDT. PEAK WINDS ESTIMATED TO 75 MPH. MAXIMUM WIDTH
Jun 21, 6:39 PM CDTTORNADO1 Ne Foxhome, MNMULTIPLE WITNESSES TO TORNADO TOUCHDOWN. TORNADO WAS RAIN WRAPPED AT THE TIME OF TOUCHDOWN.

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
Jun 21, 5:08 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.4 hours before the alert went out and 215 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 2017-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 241 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1956 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
241 m²/s²
0-3 km storm-relative helicity
346 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

351 
WFUS53 KFGF 212321
TORFGF
MNC111-167-NDC077-212345-
/O.NEW.KFGF.TO.W.0021.170621T2321Z-170621T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Eastern ND/Grand Forks ND
621 PM CDT WED JUN 21 2017

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Western Otter Tail County in west central Minnesota...
  Southeastern Wilkin County in west central Minnesota...
  East central Richland County in southeastern North Dakota...

* Until 645 PM CDT.

* At 620 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Brushvale, or 7 miles north of Wahpeton, moving 
  southeast at 35 mph. Spotters were observing a developing wall 
  cloud with brief funnel.

  HAZARD...Tornado and quarter size hail. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Expect damage to mobile homes, roofs, and vehicles. 

* This dangerous storm will be near...
  Everdell around 640 PM CDT. 
  Foxhome around 645 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 office in
Grand Forks.

&&

LAT...LON 4632 9671 4648 9659 4624 9610 4610 9630
TIME...MOT...LOC 2320Z 298DEG 29KT 4637 9656 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

dtr
1 follow-up statement
737 
WWUS53 KFGF 212333
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
633 PM CDT WED JUN 21 2017

NDC077-212342-
/O.CAN.KFGF.TO.W.0021.000000T0000Z-170621T2345Z/
Richland ND-
633 PM CDT WED JUN 21 2017

...THE TORNADO WARNING FOR EAST CENTRAL RICHLAND COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A severe thunderstorm watch remains in effect until 1000 PM CDT for
west central Minnesota.

LAT...LON 4626 9657 4641 9652 4624 9610 4612 9630
TIME...MOT...LOC 2332Z 298DEG 29KT 4632 9643 

$$

MNC111-167-212345-
/O.CON.KFGF.TO.W.0021.000000T0000Z-170621T2345Z/
Otter Tail MN-Wilkin MN-
633 PM CDT WED JUN 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR WESTERN
OTTER TAIL AND EAST CENTRAL WILKIN COUNTIES...
        
At 632 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Everdell, or 9 miles east of Wahpeton, moving
southeast at 35 mph.

HAZARD...TORNADO and quarter size hail. 

SOURCE...Weather spotters reported a funnel cloud. 

IMPACT...Expect damage to mobile homes, roofs, and vehicles. 

This dangerous storm will be near...
  Everdell around 635 PM CDT. 
  Foxhome around 645 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 4626 9657 4641 9652 4624 9610 4612 9630
TIME...MOT...LOC 2332Z 298DEG 29KT 4632 9643 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$
dtr

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 5:31 PM CDTSpecial Weather StatementFGFClay29 min
Jun 21, 5:46 PM CDTSpecial Weather StatementFGFWilkin44 min
Jun 21, 6:02 PM CDTSevere Thunderstorm WarningFGFBecker, Clay43 min
Jun 21, 6:06 PM CDTSpecial Weather StatementFGFRed Lake24 min
Jun 21, 6:30 PM CDTSevere Thunderstorm WarningFGFBeltrami, Clearwater, Polk, Red Lake60 min
Jun 21, 6:41 PM CDTTornado WarningFGFOtter Tail, Wilkin49 min

Nearby

Tornado Warnings in Minnesota, 2017Tornado Warnings in North Dakota, 2017Every tornado warning in 2017Tornadoes in 2017

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.