Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 71, NWS Grand Forks, ND

July 5, 20174 counties in Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 5, 2017, 12:54 AM CDT for 4 counties in Minnesota. It was in force for 45 min. 4 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 5, 2017, 12:54 AM CDT (05:54 UTC)
Expired: Jul 5, 2017, 1:39 AM CDT
In force: 45 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Becker County, MN, Clay County, MN, Otter Tail County, MN, Wilkin County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 143 km from the middle of the area, began a volume at 05:55 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 5, 1:02 AM CDT	HAIL 1.25	10 Wnw Rothsay, MN
Jul 5, 1:05 AM CDT	HAIL 1.5	Dunvilla, MN	A FEW LARGE HAIL AND VERY HEAVY RAINS.
Jul 5, 1:25 AM CDT	TSTM WND GST 50	6 Ene Pelican Rapids, MN	PEAK WINDS MEASURED AT A PERSONAL WEATHER STATION NEAR LAKE LIDA.
Jul 5, 1:30 AM CDT	TSTM WND DMG	3 Se Vergas, MN	LARGE BRANCHES BROKEN DOWN. POWER OUTAGES BETWEEN VERGAS AND BIG MCDONALD LAKE. REPORT POSTED VIA SOCIAL MEDIA.

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 4, 6:03 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 5.9 hours before the alert went out and 268 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: 1223 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 2651 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 90 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted.

046 
WUUS53 KFGF 050554
SVRFGF
MNC005-027-111-167-050700-
/O.NEW.KFGF.SV.W.0071.170705T0554Z-170705T0700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Eastern ND/Grand Forks ND
1254 AM CDT WED JUL 5 2017

The National Weather Service in Grand Forks has issued a

* Severe Thunderstorm Warning for...
  Southeastern Clay County in northwestern Minnesota...
  Northwestern Otter Tail County in west central Minnesota...
  Northeastern Wilkin County in west central Minnesota...
  Southern Becker County in northwestern Minnesota...

* Until 200 AM CDT.

* At 1254 AM CDT, severe thunderstorms were located along a line
  extending from near Richwood to 6 miles northeast of Kent, moving
  east at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Severe thunderstorms will be near...
  Richwood around 1255 AM CDT. 
  Height Of Land Lake and Lawndale around 115 AM CDT. 
  Rothsay around 125 AM CDT. 
  Toad Lake around 130 AM CDT. 
  Ponsford and Snellman around 135 AM CDT. 

This includes Interstate 94 in Minnesota between mile markers 26 and
50.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4633 9614 4647 9666 4704 9576 4694 9522
TIME...MOT...LOC 0554Z 282DEG 23KT 4701 9578 4649 9657 

HAIL...1.00IN
WIND...60MPH
 
$$

Gust

2 follow-up statements

915 
WWUS53 KFGF 050615
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
115 AM CDT WED JUL 5 2017

MNC027-050625-
/O.CAN.KFGF.SV.W.0071.000000T0000Z-170705T0700Z/
Clay MN-
115 AM CDT WED JUL 5 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLAY COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of
the warned area. Therefore, the warning has been cancelled.

A severe thunderstorm watch remains in effect until 200 AM CDT for
northwestern and west central Minnesota.

LAT...LON 4633 9614 4645 9657 4663 9626 4663 9618
      4669 9617 4701 9562 4694 9522
TIME...MOT...LOC 0615Z 282DEG 23KT 4698 9560 4646 9640 

$$

MNC005-111-167-050700-
/O.CON.KFGF.SV.W.0071.000000T0000Z-170705T0700Z/
Otter Tail MN-Wilkin MN-Becker MN-
115 AM CDT WED JUL 5 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR NORTHWESTERN OTTER TAIL...NORTHEASTERN WILKIN AND SOUTHEASTERN
BECKER COUNTIES...

At 115 AM CDT, severe thunderstorms were located along a line
extending from 6 miles north of Height Of Land Lake to near Rothsay,
moving east at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

These severe storms will be near...
  Height Of Land Lake around 120 AM CDT. 
  Toad Lake around 130 AM CDT. 
  Snellman and Carlisle around 140 AM CDT. 
  Elizabeth and Erhard around 145 AM CDT. 
  Osage around 155 AM CDT. 

This includes Interstate 94 in Minnesota between mile markers 31 and
50.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4633 9614 4645 9657 4663 9626 4663 9618
      4669 9617 4701 9562 4694 9522
TIME...MOT...LOC 0615Z 282DEG 23KT 4698 9560 4646 9640 

HAIL...1.00IN
WIND...60MPH
 
$$

Gust

610 
WWUS53 KFGF 050639
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
139 AM CDT WED JUL 5 2017

MNC005-111-167-050648-
/O.CAN.KFGF.SV.W.0071.000000T0000Z-170705T0700Z/
Otter Tail MN-Wilkin MN-Becker MN-
139 AM CDT WED JUL 5 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN OTTER TAIL...
NORTHEASTERN WILKIN AND SOUTHEASTERN BECKER COUNTIES IS CANCELLED...
    
The storms which prompted the warning have moved out of the area.
Therefore the warning has been cancelled.

A severe thunderstorm watch remains in effect until 200 AM CDT for
northwestern and west central Minnesota.

LAT...LON 4633 9614 4645 9657 4663 9626 4663 9618
      4669 9617 4701 9562 4694 9522
TIME...MOT...LOC 0638Z 282DEG 23KT 4695 9539 4643 9619 

$$

Gust

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 7:45 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	45 min
Jul 4, 7:54 PM CDT	Severe Thunderstorm Warning	FGF	Norman, Polk	51 min
Jul 4, 8:25 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Marshall, Pennington, Polk, Red Lake	35 min
Jul 4, 8:41 PM CDT	Severe Thunderstorm Warning	FGF	Norman, Polk	19 min
Jul 4, 8:58 PM CDT	Severe Thunderstorm Warning	FGF	Clay, Mahnomen, Norman, Pennington, Polk, Red Lake	47 min
Jul 4, 9:25 PM CDT	Severe Thunderstorm Warning	FGF	Polk	35 min
Jul 4, 9:47 PM CDT	Severe Thunderstorm Warning	FGF	Norman, Polk	58 min
Jul 4, 10:14 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Lake of the Woods	61 min
Jul 4, 10:41 PM CDT	Severe Thunderstorm Warning	FGF	Norman, Polk	35 min
Jul 4, 11:10 PM CDT	Severe Thunderstorm Warning	FGF	Clay	50 min
Jul 4, 11:24 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Hubbard	45 min
Jul 4, 11:52 PM CDT	Severe Thunderstorm Warning	FGF	Clay	53 min
Jul 5, 1:56 AM CDT	Special Weather Statement	FGF	Otter Tail	34 min
Jul 5, 2:26 AM CDT	Special Weather Statement	FGF	Douglas	49 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2017 Every severe thunderstorm warning 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.