Alert archive / Minnesota / Tornado Warnings in 2015

Tornado Warning 43, NWS Grand Forks, ND

July 12, 2015Kittson County, Marshall County, Minnesota; Walsh County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 12, 2015, 5:04 PM CDT for Kittson County, Marshall County, Minnesota; Walsh County, North Dakota. It was in force for 41 min. 1 report 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 12, 2015, 5:04 PM CDT (22:04 UTC)
Expired: Jul 12, 2015, 5:45 PM CDT
In force: 41 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

Counties Kittson County, MN, Marshall County, MN, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 95 km from the middle of the area, began a volume at 22:05 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 12, 5:05 PM CDT	TSTM WND DMG	Argyle, MN	SEVERAL OLDER LARGER TREES KNOCKED OVER...SOME NEWER TREES WITH 3-5 INCH BRANCHES BROKEN OFF.

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 12, 3:06 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 10.1 hours before the alert went out and 273 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: 1379 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 658 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

402 
WFUS53 KFGF 122204
TORFGF
MNC069-089-NDC099-122245-
/O.NEW.KFGF.TO.W.0043.150712T2204Z-150712T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
504 PM CDT SUN JUL 12 2015

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL KITTSON COUNTY IN NORTHWESTERN MINNESOTA...
  NORTHWESTERN MARSHALL COUNTY IN NORTHWESTERN MINNESOTA...
  EAST CENTRAL WALSH COUNTY IN NORTHEASTERN NORTH DAKOTA...

* UNTIL 545 PM CDT
    
* AT 504 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER BIG WOODS...OR 15 MILES SOUTHEAST OF
  GRAFTON...MOVING NORTHEAST AT 25 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...
  BIG WOODS AROUND 510 PM CDT.
  ARGYLE AROUND 535 PM CDT.
  STEPHEN AROUND 540 PM CDT.
  DONALDSON AROUND 545 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 4821 9709 4829 9728 4861 9691 4845 9657
TIME...MOT...LOC 2204Z 224DEG 23KT 4828 9713 

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

$$

DK

1 follow-up statement

066 
WWUS53 KFGF 122225
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
525 PM CDT SUN JUL 12 2015

MNC069-089-NDC099-122245-
/O.CON.KFGF.TO.W.0043.000000T0000Z-150712T2245Z/
KITTSON MN-MARSHALL MN-WALSH ND-
525 PM CDT SUN JUL 12 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR SOUTH
CENTRAL KITTSON...NORTHWESTERN MARSHALL AND EAST CENTRAL WALSH
COUNTIES...
    
AT 525 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 7 MILES NORTHEAST OF BIG WOODS...OR 19 MILES EAST OF
GRAFTON...MOVING NORTHEAST AT 25 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...
  ARGYLE AROUND 530 PM CDT.
  STEPHEN AROUND 540 PM CDT.
  DONALDSON AROUND 545 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 4821 9709 4829 9728 4861 9691 4845 9657
TIME...MOT...LOC 2225Z 224DEG 23KT 4838 9699 

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

$$

DK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 4:50 AM CDT	Severe Thunderstorm Warning	FGF	Marshall, Pennington, Polk	55 min
Jul 12, 6:25 AM CDT	Special Weather Statement	FGF	Roseau	65 min
Jul 12, 6:48 AM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	42 min
Jul 12, 7:21 AM CDT	Special Weather Statement	FGF	Beltrami	54 min
Jul 12, 7:28 AM CDT	Special Weather Statement	FGF	Lake of the Woods	32 min
Jul 12, 8:23 AM CDT	Special Weather Statement	FGF	Beltrami	67 min
Jul 12, 3:53 PM CDT	Tornado Warning	FGF	Clay, Otter Tail, Wilkin	52 min
Jul 12, 4:03 PM CDT	Tornado Warning	FGF	Polk	42 min
Jul 12, 4:21 PM CDT	Tornado Warning	FGF	Becker, Clay, Otter Tail, Wilkin	39 min
Jul 12, 4:36 PM CDT	Tornado Warning	FGF	Otter Tail, Wilkin	39 min
Jul 12, 4:46 PM CDT	Severe Thunderstorm Warning	FGF	Kittson, Marshall	59 min
Jul 12, 4:49 PM CDT	Severe Thunderstorm Warning	FGF	Marshall, Polk	43 min
Jul 12, 5:07 PM CDT	Tornado Warning	FGF	Grant, Otter Tail, Wilkin	38 min
Jul 12, 5:18 PM CDT	Tornado Warning	FGF	Becker, Otter Tail, Wadena, Wilkin	42 min
Jul 12, 5:37 PM CDT	Tornado Warning Tornado observed	FGF	Grant, Otter Tail, Wilkin	38 min
Jul 12, 5:40 PM CDT	Areal Flood Advisory	FGF	Marshall	12 hr
Jul 12, 5:43 PM CDT	Severe Thunderstorm Warning	FGF	Kittson, Marshall, Pennington, Roseau	62 min
Jul 12, 5:49 PM CDT	Tornado Warning	FGF	Otter Tail, Wadena	41 min
Jul 12, 6:08 PM CDT	Areal Flood Advisory	FGF	Otter Tail	12 hr
Jul 12, 6:15 PM CDT	Tornado Warning	FGF	Grant, Otter Tail	45 min
Jul 12, 6:23 PM CDT	Tornado Warning	FGF	Clay, Wilkin	52 min
Jul 12, 6:25 PM CDT	Tornado Warning	FGF	Otter Tail, Wadena	50 min
Jul 12, 6:56 PM CDT	Tornado Warning	FGF	Grant	49 min
Jul 11, 8:54 PM CDT	Special Weather Statement	FGF	Benson	66 min
Jul 11, 9:17 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Towner	58 min
Jul 11, 10:10 PM CDT	Tornado Warning	FGF	Benson	50 min
Jul 11, 11:01 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey, Towner	59 min
Jul 11, 11:24 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey	36 min
Jul 12, 12:19 AM CDT	Special Weather Statement	FGF	Benson	56 min
Jul 12, 2:41 AM CDT	Special Weather Statement	FGF	Nelson	34 min
Jul 12, 3:48 AM CDT	Special Weather Statement	FGF	Grand Forks	57 min
Jul 12, 2:48 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey	46 min
Jul 12, 3:37 PM CDT	Tornado Warning	FGF	Grand Forks, Steele, Traill	38 min
Jul 12, 3:55 PM CDT	Severe Thunderstorm Warning	FGF	Nelson, Ramsey, Walsh	65 min
Jul 12, 3:57 PM CDT	Tornado Warning	FGF	Grand Forks, Traill	38 min
Jul 12, 4:14 PM CDT	Tornado Warning	FGF	Grand Forks, Nelson, Walsh	46 min
Jul 12, 5:29 PM CDT	Severe Thunderstorm Warning	FGF	Walsh	34 min

Nearby

Tornado Warnings in Minnesota, 2015 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.