Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 74, NWS Grand Forks, ND

July 28, 2021Beltrami County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 28, 2021, 9:56 AM CDT for Beltrami County, Minnesota. It was in force for 19 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 28, 2021, 9:56 AM CDT (14:56 UTC)
Expired: Jul 28, 2021, 10:15 AM CDT
In force: 19 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Beltrami County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 207 km from the middle of the area, began a volume at 14:58 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 28, 9:59 AM CDT	HAIL 1	4 Nnw Blackduck, MN	SMALL HAIL COVERED THE GROUND WITH A FEW DIME TO QUARTER SIZED HAIL MIXED IN. HAIL FELL FOR ABOUT 1 TO 2 MINUTES ACROSS PORTIONS OF SOUTHEASTERN LANGOR TOWNSHIP.

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, 2.9 hours before the alert went out and 131 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: 285 J/kg
Mixed-layer CIN: -422 J/kg
Mixed-layer LCL: 1229 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 109 m²/s²
0-3 km storm-relative helicity: 190 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted.

681 
WUUS53 KFGF 281456
SVRFGF
MNC007-281545-
/O.NEW.KFGF.SV.W.0074.210728T1456Z-210728T1545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
956 AM CDT Wed Jul 28 2021

The National Weather Service in Grand Forks has issued a

* Severe Thunderstorm Warning for...
  East central Beltrami County in north central Minnesota...

* Until 1045 AM CDT.

* At 956 AM CDT, a severe thunderstorm was located near Blackduck, or
  24 miles northeast of Bemidji, moving east at 20 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.

* This severe thunderstorm will be near...
  Blackduck around 1005 AM CDT.
  Shooks around 1015 AM CDT.

Other locations in the path of this severe thunderstorm include
Funkley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4771 9468 4788 9474 4788 9442 4765 9442
TIME...MOT...LOC 1456Z 275DEG 18KT 4778 9460 

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

CJ

1 follow-up statement

089 
WWUS53 KFGF 281515
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
1015 AM CDT Wed Jul 28 2021

MNC007-281523-
/O.CAN.KFGF.SV.W.0074.000000T0000Z-210728T1545Z/
Beltrami MN-
1015 AM CDT Wed Jul 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BELTRAMI COUNTY
IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

Remember, a Severe Thunderstorm Warning still remains in effect for
Itasca County.

LAT...LON 4771 9468 4788 9474 4788 9442 4765 9442
TIME...MOT...LOC 1511Z 275DEG 18KT 4777 9447 

$$

CJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 3:43 AM CDT	Severe Thunderstorm Warning	FGF	Wilkin	39 min
Jul 28, 4:12 AM CDT	Special Weather Statement	FGF	Grant	63 min
Jul 28, 4:20 AM CDT	Special Weather Statement	FGF	Clay	55 min
Jul 28, 4:31 AM CDT	Special Weather Statement	FGF	Wadena	29 min
Jul 28, 4:40 AM CDT	Special Weather Statement	FGF	Mahnomen	65 min
Jul 28, 5:15 AM CDT	Special Weather Statement	FGF	Hubbard	60 min
Jul 28, 6:00 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Clearwater, Hubbard	60 min
Jul 28, 7:04 AM CDT	Special Weather Statement	FGF	Beltrami	56 min
Jul 28, 8:32 AM CDT	Special Weather Statement	FGF	Hubbard	43 min
Jul 28, 9:44 AM CDT	Special Weather Statement	FGF	Beltrami	61 min
Jul 28, 11:20 AM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	55 min
Jul 28, 6:03 PM CDT	Special Weather Statement	FGF	Beltrami	27 min
Jul 28, 6:40 PM CDT	Special Weather Statement	FGF	Beltrami	35 min
Jul 28, 6:47 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	28 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2021 Every severe thunderstorm warning in 2021

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.