Alert archive / North Dakota / Tornado Warnings in 2017

Tornado Warning 26, NWS Grand Forks, ND

July 11, 2017Cavalier County, Ramsey County, Walsh County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 11, 2017, 5:48 PM CDT for Cavalier County, Ramsey County, Walsh County, North Dakota. It was in force for 42 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: Jul 11, 2017, 5:48 PM CDT (22:48 UTC)
Expired: Jul 11, 2017, 6:30 PM CDT
In force: 42 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Cavalier County, ND, Ramsey County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 140 km from the middle of the area, began a volume at 22:48 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
Jul 11, 6:29 PM CDT	FUNNEL CLOUD	2 Ene Fairdale, ND	LARGE CONE SHAPED FUNNEL WAS REPORTED NEAR FAIRDALE.
Jul 11, 6:30 PM CDT	TORNADO 1	5 Nw Adams, ND	THIS ROPE TORNADO TRACKED FOR ROUGHLY 7 MILES TO THE EAST SOUTHEAST AND EVENTUALLY PRODUCED A SUBSTANTIAL DUST SWIRL BEFORE IT ENDED ABOUT 2 ENE OF ADAMS BY 646 PM CDT. IT WAS VIEWED AND PHOTOGRAPHED FROM MULTIPLE LOCATIONS. THOUGH IT REMAINED OVER LARGELY OPE
Jul 11, 6:33 PM CDT	FUNNEL CLOUD	2 Ese Fairdale, ND	POSSIBLE TORNADO ON THE GROUND BETWEEN ADAMS AND FAIRDALE
Jul 11, 6:35 PM CDT	TORNADO	5 Nw Adams, ND	SMALL ROPE FUNNEL REPORTED BETWEEN ADAMS AND FAIRDALE.
Jul 11, 6:38 PM CDT	FUNNEL CLOUD	3 N Adams, ND	EDMORE FIRE DEPARTMENT REPORTED FUNNEL NEAR ADAMS - RELAYED VIA 911 CALL CENTER

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
Jul 11, 4:48 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 10.8 hours before the alert went out and 281 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: 34 J/kg
Mixed-layer CIN: -303 J/kg
Mixed-layer LCL: 2064 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 145 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

123 
WFUS53 KFGF 112248
TORFGF
NDC019-071-099-112330-
/O.NEW.KFGF.TO.W.0026.170711T2248Z-170711T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Eastern ND/Grand Forks ND
548 PM CDT TUE JUL 11 2017

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Southeastern Cavalier County in northeastern North Dakota...
  Northeastern Ramsey County in northeastern North Dakota...
  Northwestern Walsh County in northeastern North Dakota...

* Until 630 PM CDT.

* At 548 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Loma, or 10 miles southwest of Langdon, moving
  east at 30 mph.

  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...
  Nekoma around 600 PM CDT. 
  Osnabrock, Hove Mobile Park and Fairdale around 615 PM CDT. 
  Milton around 630 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 4871 9793 4869 9792 4841 9810 4856 9863
      4880 9856
TIME...MOT...LOC 2248Z 287DEG 26KT 4863 9849 

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

$$

JH

1 follow-up statement

019 
WWUS53 KFGF 112306
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
606 PM CDT TUE JUL 11 2017

NDC019-071-099-112330-
/O.CON.KFGF.TO.W.0026.000000T0000Z-170711T2330Z/
Cavalier ND-Ramsey ND-Walsh ND-
606 PM CDT TUE JUL 11 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
SOUTHEASTERN CAVALIER...NORTHEASTERN RAMSEY AND NORTHWESTERN WALSH
COUNTIES...
    
At 605 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Hove Mobile Park, or 12 miles south of Langdon,
moving east at 30 mph.

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...
  Osnabrock, Hove Mobile Park and Fairdale around 615 PM CDT. 
  Milton around 625 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 4871 9793 4869 9792 4841 9810 4856 9863
      4880 9856
TIME...MOT...LOC 2305Z 287DEG 26KT 4859 9830 

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

$$

JH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 5:09 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson	66 min
Jul 11, 5:15 PM CDT	Tornado Warning Tornado observed	FGF	Cavalier, Towner	45 min
Jul 11, 5:25 PM CDT	Tornado Warning	FGF	Walsh	50 min
Jul 11, 5:35 PM CDT	Tornado Warning	FGF	Grand Forks, Walsh	40 min
Jul 11, 5:45 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	60 min
Jul 11, 5:46 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	59 min
Jul 11, 6:01 PM CDT	Tornado Warning	FGF	Grand Forks	44 min
Jul 11, 6:16 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Walsh	44 min
Jul 11, 6:21 PM CDT	Tornado Warning	FGF	Grand Forks, Walsh	39 min
Jul 11, 6:27 PM CDT	Tornado Warning	FGF	Cavalier, Pembina, Walsh	48 min
Jul 11, 6:42 PM CDT	Tornado Warning	FGF	Grand Forks, Steele, Traill	48 min
Jul 11, 6:49 PM CDT	Areal Flood Advisory	FGF	Walsh	2 hr

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.