Alert archive / North Dakota / Tornado Warnings in 2017

Tornado Warning 14, NWS Grand Forks, ND

June 9, 2017Benson County, Ramsey County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 9, 2017, 7:29 PM CDT for Benson County, Ramsey County, North Dakota. It was in force for 46 min. 5 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 9, 2017, 7:29 PM CDT (00:29 UTC)
Expired: Jun 9, 2017, 8:15 PM CDT
In force: 46 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Observed
Hail: 1.5 in

Counties Benson County, ND, Ramsey County, ND

The radar

The Minot AFB radar (KMBX), 122 km from the middle of the area, began a volume at 00:30 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

Time	Report	Where	Remark
Jun 9, 7:34 PM CDT	TORNADO 0	3 S Brinsmade, ND	A TORNADO TRACKED EASTWARD OVER LARGELY OPEN COUNTRY FOR NEARLY 2 MILES TO AROUND 4 NNW OF MINNEWAUKAN BY AROUND 737 PM CDT. THE GROUND SWIRL OF THIS TORNADO WAS VIDEOED BY STORM CHASERS NEAR THE WEST BAY OF DEVILS LAKE THOUGH VERY DUSTY CONDITION MADE DETECTI
Jun 9, 7:35 PM CDT	HAIL 0.88	1 W Leeds, ND	HAIL COVERING THE GROUND, RANGING FROM PEA TO NICKEL SIZE, ALSO REPORTED SEEING WALL CLOUD TO THE SOUTH FROM THAT POINT AROUND 0730 PM CDT
Jun 9, 7:35 PM CDT	HAIL 2	1 E Leeds, ND
Jun 9, 7:50 PM CDT	HAIL 0.88	3 Sw Penn, ND
Jun 9, 8:13 PM CDT	HAIL 0.75	Devils Lake, ND

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.

Issued	Product	Office	Lasted
Jun 9, 4:58 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.5 hours before the alert went out and 191 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1523 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 2862 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 62 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

199 
WFUS53 KFGF 100029
TORFGF
NDC005-071-100115-
/O.NEW.KFGF.TO.W.0014.170610T0029Z-170610T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Eastern ND/Grand Forks ND
729 PM CDT FRI JUN 9 2017

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Central Benson County in northeastern North Dakota...
  Southwestern Ramsey County in northeastern North Dakota...

* Until 815 PM CDT.

* At 728 PM CDT, a confirmed tornado was located near Harlow, or 27
  miles west of Devils Lake, moving east at 45 mph.

  HAZARD...Tornado and ping pong ball size hail. 

  SOURCE...Weather spotters confirmed tornado. 

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

* The tornado will be near...
  Brinsmade around 735 PM CDT. 
  Minnewaukan around 740 PM CDT. 
  Churchs Ferry around 745 PM CDT. 
  Penn around 750 PM CDT. 
  Lakewood Park and Camp Grafton around 800 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 4831 9963 4833 9863 4790 9869 4808 9967
TIME...MOT...LOC 0028Z 275DEG 39KT 4819 9945 

TORNADO...OBSERVED
HAIL...1.50IN

$$

Knutsvig

3 follow-up statements

586 
WWUS53 KFGF 100041
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
741 PM CDT FRI JUN 9 2017

NDC005-071-100115-
/O.CON.KFGF.TO.W.0014.000000T0000Z-170610T0115Z/
Benson ND-Ramsey ND-
741 PM CDT FRI JUN 9 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR CENTRAL
BENSON AND SOUTHWESTERN RAMSEY COUNTIES...
    
At 740 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Brinsmade, or 18 miles west of Devils Lake, moving
east at 45 mph.

HAZARD...TORNADO and quarter size hail. 

SOURCE...Radar indicated rotation. At 718 PM...a brief tornado 
         touchdown was reported near Harlow. 

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

This dangerous storm will be near...
  Penn around 750 PM CDT. 
  Devils Lake, Lakewood Park and Camp Grafton around 805 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 4831 9949 4833 9863 4790 9869 4811 9944
TIME...MOT...LOC 0040Z 275DEG 38KT 4817 9927 

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

$$

Knutsvig

087 
WWUS53 KFGF 100052
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
752 PM CDT FRI JUN 9 2017

NDC005-071-100115-
/O.CON.KFGF.TO.W.0014.000000T0000Z-170610T0115Z/
Benson ND-Ramsey ND-
752 PM CDT FRI JUN 9 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR CENTRAL
BENSON AND SOUTHWESTERN RAMSEY COUNTIES...
    
At 751 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Penn, or 11 miles west of Devils Lake, moving east
at 45 mph.

HAZARD...TORNADO and ping pong ball size hail. 

SOURCE...Radar indicated rotation. 

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

This dangerous storm will be near...
  Devils Lake, Lakewood Park and Camp Grafton around 805 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 4829 9918 4832 9864 4799 9869 4810 9928
TIME...MOT...LOC 0051Z 275DEG 37KT 4816 9911 

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

$$

Knutsvig

524 
WWUS53 KFGF 100101
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
801 PM CDT FRI JUN 9 2017

NDC005-071-100115-
/O.CON.KFGF.TO.W.0014.000000T0000Z-170610T0115Z/
Benson ND-Ramsey ND-
801 PM CDT FRI JUN 9 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR EAST
CENTRAL BENSON AND SOUTHWESTERN RAMSEY COUNTIES...
    
At 801 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Devils Lake, moving east at 45 mph.

HAZARD...TORNADO and ping pong ball size hail. 

SOURCE...Radar indicated rotation. 

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

This dangerous storm will be near...
  Devils Lake around 805 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 4823 9905 4828 9869 4804 9868 4799 9869
      4801 9880 4809 9911
TIME...MOT...LOC 0101Z 275DEG 39KT 4815 9894 

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

$$

Knutsvig

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 7:06 PM CDT	Tornado Warning	FGF	Benson	24 min
Jun 9, 7:08 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina, Walsh	52 min
Jun 9, 7:56 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	64 min
Jun 9, 8:15 PM CDT	Tornado Warning	FGF	Nelson, Ramsey, Walsh	45 min
Jun 9, 8:16 PM CDT	Tornado Warning	FGF	Eddy, Nelson	44 min
Jun 9, 8:38 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Nelson	38 min
Jun 9, 8:58 PM CDT	Tornado Warning	FGF	Grand Forks, Nelson, Walsh	15 min
Jun 9, 9:00 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Griggs, Steele	60 min
Jun 9, 9:31 PM CDT	Tornado Warning	FGF	Barnes, Griggs, Steele	29 min
Jun 9, 9:45 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Ransom	60 min
Jun 9, 10:03 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Steele, Traill	34 min
Jun 9, 10:45 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass	36 min
Jun 9, 11:01 PM CDT	Severe Thunderstorm Warning	FGF	Cass	44 min
Jun 9, 11:15 PM CDT	Severe Thunderstorm Warning	FGF	Cass	31 min
Jun 10, 3:42 AM CDT	Special Weather Statement	FGF	Griggs	48 min
Jun 10, 4:08 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Griggs, Nelson, Steele, Traill	37 min
Jun 10, 4:45 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Steele, Traill	32 min
Jun 10, 5:01 AM CDT	Special Weather Statement	FGF	Benson, Eddy	29 min
Jun 10, 5:40 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Eddy, Grand Forks, Nelson, Ramsey and 2 more	50 min
Jun 10, 6:07 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Grand Forks, Nelson, Pembina, Walsh	38 min
Jun 10, 6:42 AM CDT	Special Weather Statement	FGF	Grand Forks	33 min
Jun 10, 6:49 AM CDT	Special Weather Statement	FGF	Nelson	41 min
Jun 10, 7:26 AM CDT	Special Weather Statement	FGF	Grand Forks	49 min

Nearby

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