Alert archive / North Dakota / Tornado Warnings in 2015

Tornado Warning 20, NWS Grand Forks, ND

June 27, 2015Grand Forks County, Steele County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 27, 2015, 5:10 PM CDT for Grand Forks County, Steele County, North Dakota. It was in force for 50 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 27, 2015, 5:10 PM CDT (22:10 UTC)
Expired: Jun 27, 2015, 6:00 PM CDT
In force: 50 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Grand Forks County, ND, Steele County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 33 km from the middle of the area, began a volume at 22:12 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 27, 5:13 PM CDT	TORNADO 0	6 S Logan Center, ND	TORNADO VIEWED SOUTH OF HWY 15 MOVING EAST. TORNADO LASTED FOR ABOUT TWO MINUTES...UNTIL 515 PM CDT...AND TRAVELLED NEARLY A MILE OVER OPEN FIELDS.
Jun 27, 5:15 PM CDT	TORNADO	3 S Logan Center, ND	TORNADO VIEWED SOUTH OF HWY 15 MOVING EAST.
Jun 27, 5:18 PM CDT	TORNADO 0	8 E Sharon, ND	BRIEF TOUCHDOWN NOTED IN OPEN FIELD.
Jun 27, 5:25 PM CDT	HAIL 3	1 N Golden Lake, ND	VERY LARGE HAIL ACROSS NORTHWEST SIDE OF GOLDEN LAKE. ALSO SOME 2 INCH BRANCHES BROKEN DOWN.
Jun 27, 5:37 PM CDT	HAIL 3	3 N Northwood, 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 27, 2:42 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 10.2 hours before the alert went out and 248 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: 17 J/kg
Mixed-layer CIN: -293 J/kg
Mixed-layer LCL: 1820 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 190 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.

763 
WFUS53 KFGF 272210
TORFGF
NDC035-091-272300-
/O.NEW.KFGF.TO.W.0020.150627T2210Z-150627T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
510 PM CDT SAT JUN 27 2015

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN STEELE COUNTY IN SOUTHEASTERN NORTH DAKOTA...
  SOUTHWESTERN GRAND FORKS COUNTY IN NORTHEASTERN NORTH DAKOTA...

* UNTIL 600 PM CDT
    
* AT 510 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR LOGAN CENTER...OR 37 MILES WEST OF GRAND
  FORKS...MOVING EAST AT 15 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

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

* THIS DANGEROUS STORM WILL BE NEAR...
  NORTHWOOD AROUND 600 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 4767 9791 4767 9788 4779 9789 4784 9787
      4776 9744 4767 9746 4767 9747 4765 9747
      4751 9751 4761 9792
TIME...MOT...LOC 2210Z 276DEG 12KT 4771 9783 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

JK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 3:01 PM CDT	Tornado Warning	FGF	Cavalier, Pembina	44 min
Jun 27, 3:34 PM CDT	Tornado Warning	FGF	Cavalier, Pembina, Walsh	41 min
Jun 27, 4:12 PM CDT	Tornado Warning Tornado observed	FGF	Cavalier, Grand Forks, Nelson, Pembina, Walsh	48 min
Jun 27, 4:37 PM CDT	Tornado Warning	FGF	Grand Forks, Nelson, Steele	38 min
Jun 27, 4:40 PM CDT	Tornado Warning	FGF	Grand Forks, Nelson	50 min
Jun 27, 4:58 PM CDT	Tornado Warning	FGF	Barnes, Cass, Ransom	47 min
Jun 27, 5:03 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Walsh	27 min
Jun 27, 5:27 PM CDT	Tornado Warning	FGF	Grand Forks	48 min
Jun 27, 5:39 PM CDT	Tornado Warning	FGF	Grand Forks, Steele, Traill	51 min
Jun 27, 5:42 PM CDT	Tornado Warning	FGF	Barnes, Cass, Ransom	48 min
Jun 27, 6:14 PM CDT	Tornado Warning	FGF	Barnes, Cass, Steele, Traill	46 min
Jun 27, 6:26 PM CDT	Tornado Warning	FGF	Traill	34 min
Jun 27, 6:30 PM CDT	Tornado Warning	FGF	Ransom, Richland, Sargent	45 min
Jun 27, 6:55 PM CDT	Tornado Warning	FGF	Cass, Ransom, Richland	35 min
Jun 27, 6:59 PM CDT	Tornado Warning	FGF	Cass, Traill	12 min

Nearby

Tornado Warnings in North Dakota, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.