Alert archive / Minnesota / Tornado Warnings in 2016

Tornado Warning 11, NWS Grand Forks, ND

July 7, 2016Polk County, Minnesota; Grand Forks County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 7, 2016, 4:47 PM CDT for Polk County, Minnesota; Grand Forks County, North Dakota. It was in force for 43 min. 2 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 7, 2016, 4:47 PM CDT (21:47 UTC)
Expired: Jul 7, 2016, 5:30 PM CDT
In force: 43 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Polk County, MN, Grand Forks County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 48 km from the middle of the area, began a volume at 21:45 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 7, 4:59 PM CDT	FUNNEL CLOUD	East Grand Forks, MN	MULTIPLE VORTICES EXTENDING FROM WALL CLOUD.
Jul 7, 5:11 PM CDT	FUNNEL CLOUD	5 S Grand Forks, ND	POSSIBLE TOUCHDOWN NOTED NEAR KNOX TOWER SOUTH OF TOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 9.8 hours before the alert went out and 280 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1271 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

320 
WFUS53 KFGF 072147
TORFGF
MNC119-NDC035-072230-
/O.NEW.KFGF.TO.W.0011.160707T2147Z-160707T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
447 PM CDT THU JUL 7 2016

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL POLK COUNTY IN NORTHWESTERN MINNESOTA...
  EAST CENTRAL GRAND FORKS COUNTY IN NORTHEASTERN NORTH DAKOTA...

* UNTIL 530 PM CDT

* AT 446 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR BYGLAND...OR NEAR GRAND FORKS...MOVING
  NORTHEAST AT 20 MPH.

  HAZARD...TORNADO. 

  SOURCE...WEATHER SPOTTERS REPORTED FUNNEL CLOUD. 

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

* THIS DANGEROUS STORM WILL BE NEAR...
  BYGLAND AROUND 450 PM CDT. 
  EAST GRAND FORKS AROUND 455 PM CDT. 
  MALLORY AROUND 500 PM CDT. 
  DAVIDSON AROUND 505 PM CDT. 
  KEY WEST AROUND 520 PM CDT. 

ALSO INCLUDES INTERSTATE 29 BETWEEN MILE MARKERS 134 AND 138.
 
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 4777 9702 4787 9714 4804 9682 4788 9662
TIME...MOT...LOC 2146Z 236DEG 19KT 4785 9701 

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

$$

HOPKINS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 3:45 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Hubbard	60 min
Jul 7, 4:50 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Hubbard	55 min
Jul 7, 5:02 PM CDT	Tornado Warning	FGF	Polk	43 min
Jul 7, 5:50 PM CDT	Severe Thunderstorm Warning	FGF	Marshall, Pennington, Polk	25 min
Jul 7, 6:07 PM CDT	Areal Flood Warning	FGF	Marshall, Polk	3 hr
Jul 7, 1:30 PM CDT	Tornado Warning	FGF	Griggs, Nelson	30 min
Jul 7, 1:55 PM CDT	Tornado Warning	FGF	Nelson	50 min
Jul 7, 2:53 PM CDT	Areal Flood Advisory	FGF	Nelson, Ramsey	3 hr

Nearby

Tornado Warnings in Minnesota, 2016 Tornado Warnings in North Dakota, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.