Alert archive / Minnesota / Tornado Warnings in 2018

Tornado Warning 26, NWS Grand Forks, ND

July 11, 2018Beltrami County, Lake of the Woods County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jul 11, 2018, 9:30 PM CDT for Beltrami County, Lake of the Woods County, Minnesota. It was in force for 30 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 11, 2018, 9:30 PM CDT (02:30 UTC)
Expired: Jul 11, 2018, 10:00 PM CDT
In force: 30 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Beltrami County, MN, Lake of the Woods County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 224 km from the middle of the area, began a volume at 02:29 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, 9:30 PM CDT	TSTM WND DMG	7 Nnw Waskish, MN	A FEW TREES BLOWN DOWN ALONG HIGHWAY 72 AND NEAR THE RED LAKE WILDLIFE MANAGEMENT AREA.

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, 6:42 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 2.5 hours before the alert went out and 97 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: 626 J/kg
Mixed-layer CIN: -198 J/kg
Mixed-layer LCL: 938 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 244 m²/s²
0-3 km storm-relative helicity: 416 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

As transmitted.

739 
WFUS53 KFGF 120230
TORFGF
MNC007-077-120300-
/O.NEW.KFGF.TO.W.0026.180712T0230Z-180712T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Eastern ND/Grand Forks ND
930 PM CDT WED JUL 11 2018

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Northeastern Beltrami County in north central Minnesota...
  Southeastern Lake of the Woods County in north central Minnesota...

* Until 1000 PM CDT.
    
* At 930 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 11 miles north of BIg Bog State Recreation Area, or 60
  miles north of Bemidji, moving east at 35 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

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

* This tornadic thunderstorm will remain over mainly rural areas of
  northeastern Beltrami and southeastern Lake of the Woods Counties.

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 9460 4838 9471 4850 9443 4823 9442
TIME...MOT...LOC 0230Z 249DEG 29KT 4833 9454 

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

$$

Hopkins

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 7:57 PM CDT	Special Weather Statement	FGF	Beltrami	48 min
Jul 11, 8:16 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Lake of the Woods	59 min
Jul 11, 8:48 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Lake of the Woods	57 min
Jul 11, 9:08 PM CDT	Severe Thunderstorm Warning	FGF	Clearwater, Mahnomen, Polk	67 min
Jul 11, 9:23 PM CDT	Tornado Warning	FGF	Beltrami	52 min
Jul 11, 9:42 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	48 min
Jul 11, 10:13 PM CDT	Special Weather Statement	FGF	Clearwater	62 min
Jul 11, 10:30 PM CDT	Special Weather Statement	FGF	Becker	60 min
Jul 11, 11:10 PM CDT	Special Weather Statement	FGF	Hubbard	50 min
Jul 11, 11:12 PM CDT	Areal Flood Advisory	FGF	Beltrami	108 min
Jul 11, 11:26 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Clearwater, Hubbard	64 min
Jul 12, 12:31 AM CDT	Special Weather Statement	FGF	Wadena	44 min
Jul 12, 1:09 AM CDT	Severe Thunderstorm Warning	FGF	Hubbard, Wadena	36 min

Nearby

Tornado Warnings in Minnesota, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.