Alert archive / North Dakota / Special Weather Statements in 2020

Special Weather Statement, NWS Grand Forks, ND

August 9, 2020Benson County, Ramsey County, North Dakota

NWS Grand Forks, ND issued this special weather statement at Aug 9, 2020, 6:57 AM CDT for Benson County, Ramsey County, North Dakota. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 9, 2020, 6:57 AM CDT (11:57 UTC)
Expired: Aug 9, 2020, 7:45 AM CDT
In force: 48 min
Issued by: NWS Grand Forks, ND

Counties Benson County, ND, Ramsey County, ND

The radar

The Minot AFB radar (KMBX), 131 km from the middle of the area, began a volume at 11:57 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.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 12.0 hours before the alert went out and 193 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: 2499 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Forks, ND wrote its last area forecast discussion before this special weather statement went out at Aug 9, 6:41 AM CDT, 16 minutes earlier.

Area forecast discussion, Aug 9, 6:41 AM CDT, 16 minutes before

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Hazardous weather outlook, Aug 9, 4:26 AM CDT, 2 hours 31 minutes before

Hazardous Weather Outlook
National Weather Service Grand Forks ND
426 AM CDT Sun Aug 9 2020

MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-100930-
West Polk-Norman-Clay-Kittson-Roseau-Lake Of The Woods-
West Marshall-East Marshall-North Beltrami-Pennington-Red Lake-
East Polk-North Clearwater-South Beltrami-Mahnomen-
South Clearwater-Hubbard-West Becker-East Becker-Wilkin-
West Otter Tail-East Otter Tail-Wadena-Grant-Towner-Cavalier-
Pembina-Benson-Ramsey-Eastern Walsh-Eddy-Nelson-Grand Forks-
Griggs-Steele-Traill-Barnes-Cass-Ransom-Sargent-Richland-
Western Walsh-
426 AM CDT Sun Aug 9 2020

This hazardous weather outlook is for portions of eastern North
Dakota, west central and northwest Minnesota.

.DAY ONE...Today and Tonight

Multiple rounds of thunderstorms will be possible today. The first
round will impact during the early morning hours mainly south of
the I-29/Highway 10 corridor. Hail up to 1 inch and wind gusts to
60 mph will be possible. These storms will move eastward out of
the area by mid-day.

Additional thunderstorms will move in from western North Dakota
during the late morning and into the afternoon as a cold front
moves into the region. Depending on how the morning activity plays
out, there is the possibility of hail up to 1 inch, wind gusts to
75 mph, and even a brief tornado spin up as a complex of
thunderstorms moves across the area during the afternoon and
evening.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Additional thunderstorm chances will be possible during the middle
to later part of the work week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

In the hours before

Special weather statement, Aug 9, 4:29 AM CDT, 2 hours 28 minutes before

Special Weather Statement
National Weather Service Grand Forks ND
429 AM CDT Sun Aug 9 2020

NDZ049-052-053-091030-
Sargent ND-Richland ND-Ransom ND-
429 AM CDT Sun Aug 9 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN RANSOM...
SOUTHWESTERN RICHLAND AND EASTERN SARGENT COUNTIES UNTIL 530 AM
CDT...

At 429 AM CDT, Doppler radar was tracking a strong thunderstorm near
Geneseo, or 38 miles southwest of Wahpeton, moving northeast at 30
mph.

Penny size hail and wind gusts of 50 to 55 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Cayuga around 435 AM CDT.
  Geneseo around 440 AM CDT.
  Lidgerwood around 445 AM CDT.
  Hamlin around 450 AM CDT.
  Wyndmere around 510 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.

&&

LAT...LON 4594 9755 4643 9733 4634 9683 4593 9721
TIME...MOT...LOC 0929Z 205DEG 26KT 4601 9732

SPEICHER

Special weather statement, Aug 9, 4:36 AM CDT, 2 hours 21 minutes before

Special Weather Statement
National Weather Service Grand Forks ND
436 AM CDT Sun Aug 9 2020

MNZ003-029>031-040-NDZ053-091030-
East Otter Tail MN-Clay MN-Grant MN-Wilkin MN-West Otter Tail MN-
Richland ND-
436 AM CDT Sun Aug 9 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN CLAY...WESTERN OTTER
TAIL...WESTERN GRANT...EASTERN WILKIN AND SOUTHEASTERN RICHLAND
COUNTIES UNTIL 530 AM CDT...

At 435 AM CDT, Doppler radar was tracking a strong thunderstorm over
Tintah, or 23 miles southwest of Fergus Falls, moving north at 40
mph.

Penny size hail and wind gusts of 50 to 55 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Campbell around 445 AM CDT.
  Western around 450 AM CDT.
  Foxhome around 500 AM CDT.
  Fergus Falls around 505 AM CDT.
  Elizabeth and Carlisle around 510 AM CDT.

Other locations impacted by this storm include Fergus Falls Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.

&&

LAT...LON 4576 9625 4593 9625 4594 9626 4602 9627
      4602 9657 4594 9656 4593 9665 4673 9635
      4661 9572 4576 9605
TIME...MOT...LOC 0935Z 196DEG 43KT 4599 9632

SPEICHER

Special weather statement, Aug 9, 4:55 AM CDT, 2 hours 2 minutes before

Special Weather Statement
National Weather Service Grand Forks ND
455 AM CDT Sun Aug 9 2020

MNZ030-031-040-091100-
East Otter Tail MN-Grant MN-West Otter Tail MN-
455 AM CDT Sun Aug 9 2020

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL OTTER TAIL AND EASTERN
GRANT COUNTIES UNTIL 600 AM CDT...

At 454 AM CDT, Doppler radar was tracking a strong thunderstorm near
Erdahl, or 26 miles southeast of Fergus Falls, moving north at 45
mph.

Penny size hail will be possible with this storm.

This strong thunderstorm will be near...
  Ashby around 505 AM CDT.
  Clitherall, Battle Lake and Vining around 525 AM CDT.
  Glendalough State Park and Ottertail Lake around 530 AM CDT.
  Amor around 535 AM CDT.
  Ottertail around 540 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.

&&

LAT...LON 4582 9603 4663 9571 4656 9525 4611 9555
      4611 9577 4582 9576
TIME...MOT...LOC 0954Z 193DEG 40KT 4596 9576

Speicher

Special weather statement, Aug 9, 5:31 AM CDT, 1 hour 26 minutes before

Special Weather Statement
National Weather Service Grand Forks ND
531 AM CDT Sun Aug 9 2020

NDZ049-052-053-091130-
Sargent ND-Richland ND-Ransom ND-
531 AM CDT Sun Aug 9 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN RANSOM...
NORTHWESTERN RICHLAND AND NORTHEASTERN SARGENT COUNTIES UNTIL 630 AM
CDT...

At 531 AM CDT, Doppler radar was tracking a strong thunderstorm near
Milnor, or 42 miles west of Wahpeton, moving north at 20 mph.

Penny size hail and wind gusts up to 50 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Milnor around 545 AM CDT.
  De Lamere around 550 AM CDT.
  McLeod around 625 AM CDT.
  Venlo around 630 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.

&&

LAT...LON 4609 9734 4612 9772 4653 9764 4648 9709
TIME...MOT...LOC 1031Z 192DEG 14KT 4621 9749

Speicher

Special weather statement, Aug 9, 5:49 AM CDT, 1 hour 8 minutes before

Special Weather Statement
National Weather Service Grand Forks ND
549 AM CDT Sun Aug 9 2020

MNZ003-024-027>032-091145-
West Becker MN-Wadena MN-East Otter Tail MN-East Becker MN-Clay MN-
Hubbard MN-Wilkin MN-West Otter Tail MN-
549 AM CDT Sun Aug 9 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN CLAY...SOUTHWESTERN
HUBBARD...WADENA...NORTHERN OTTER TAIL...NORTHEASTERN WILKIN AND
SOUTHERN BECKER COUNTIES UNTIL 645 AM CDT...

At 549 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Rothsay to near Star Lake to near New York
Mills to near Deer Creek. Movement was north at 25 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
these storms.

Strong thunderstorms will be near...
  Deer Creek, Star Lake and Richville around 550 AM CDT.
  Big McDonald Lake, New York Mills and Dent around 555 AM CDT.
  Wadena around 600 AM CDT.
  Bluffton and Perham around 605 AM CDT.
  Vergas around 610 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.

&&

LAT...LON 4637 9498 4637 9516 4620 9515 4640 9552
      4644 9588 4638 9645 4692 9628 4699 9560
      4695 9524 4672 9478 4664 9478
TIME...MOT...LOC 1049Z 199DEG 23KT 4650 9632 4655 9585 4651 9549 4638
9526

Speicher

Special weather statement, Aug 9, 6:57 AM CDT, 0 minutes before

Special Weather Statement
National Weather Service Grand Forks ND
657 AM CDT Sun Aug 9 2020

NDZ014-015-091245-
Benson ND-Ramsey ND-
657 AM CDT Sun Aug 9 2020

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL BENSON AND CENTRAL RAMSEY
COUNTIES UNTIL 745 AM CDT...

At 656 AM CDT, Doppler radar was tracking a strong thunderstorm near
Brinsmade, or 24 miles west of Devils Lake, moving east at 40 mph.

Penny size hail and wind gusts up to 50 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Brinsmade around 700 AM CDT.
  Minnewaukan around 705 AM CDT.
  Churchs Ferry around 710 AM CDT.
  Penn around 720 AM CDT.
  Lakewood Park around 725 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.

&&

LAT...LON 4804 9950 4822 9954 4836 9858 4805 9854
TIME...MOT...LOC 1156Z 261DEG 37KT 4814 9940

Speicher

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 4:36 AM CDT	Special Weather Statement	FGF	Grant, Wilkin	54 min
Aug 9, 4:55 AM CDT	Special Weather Statement	FGF	Otter Tail	65 min
Aug 9, 5:49 AM CDT	Special Weather Statement	FGF	Becker, Wadena	56 min
Aug 9, 7:10 AM CDT	Special Weather Statement	FGF	Norman	65 min
Aug 9, 8:41 AM CDT	Special Weather Statement	FGF	Lake of the Woods	64 min
Aug 9, 12:21 PM CDT	Severe Thunderstorm Warning	FGF	Kittson, Marshall	54 min
Aug 9, 1:08 PM CDT	Severe Thunderstorm Warning	FGF	Kittson, Roseau	67 min
Aug 9, 1:39 PM CDT	Severe Thunderstorm Warning	FGF	Marshall, Polk	66 min
Aug 9, 2:01 PM CDT	Tornado Warning	FGF	Marshall, Pennington, Polk	44 min
Aug 9, 2:05 PM CDT	Severe Thunderstorm Warning	FGF	Marshall, Pennington, Polk, Red Lake	55 min
Aug 9, 2:10 PM CDT	Severe Thunderstorm Warning	FGF	Norman, Polk, Red Lake	65 min
Aug 9, 2:20 PM CDT	Tornado Warning	FGF	Beltrami, Marshall	40 min
Aug 9, 2:42 PM CDT	Tornado Warning	FGF	Beltrami, Clearwater, Marshall, Pennington, Polk, Red Lake	48 min
Aug 9, 2:49 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Lake of the Woods, Marshall, Roseau	56 min
Aug 9, 2:52 PM CDT	Severe Thunderstorm Warning	FGF	Clay, Norman	53 min
Aug 9, 2:57 PM CDT	Tornado Warning	FGF	Beltrami, Marshall	33 min
Aug 9, 3:06 PM CDT	Tornado Warning	FGF	Lake of the Woods, Roseau	24 min
Aug 9, 3:12 PM CDT	Severe Thunderstorm Warning	FGF	Polk, Red Lake	63 min
Aug 9, 3:18 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater, Lake of the Woods, Marshall, Pennington, Polk and 2 more	57 min
Aug 9, 3:20 PM CDT	Severe Thunderstorm Warning	FGF	Clay	22 min
Aug 9, 3:35 PM CDT	Tornado Warning	FGF	Clay, Norman	18 min
Aug 9, 3:41 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater, Hubbard, Mahnomen, Norman, Polk and 1 more	64 min
Aug 9, 3:47 PM CDT	Tornado Warning	FGF	Lake of the Woods	28 min
Aug 9, 3:53 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Clearwater, Hubbard, Mahnomen, Norman	48 min
Aug 9, 4:38 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Beltrami, Clearwater, Hubbard, Mahnomen, Norman and 1 more	52 min
Aug 9, 5:28 PM CDT	Special Weather Statement	FGF	Hubbard	32 min
Aug 9, 5:31 PM CDT	Severe Thunderstorm Warning	FGF	Hubbard	29 min
Aug 9, 5:33 PM CDT	Special Weather Statement	FGF	Clearwater	57 min
Aug 9, 4:29 AM CDT	Special Weather Statement	FGF	Richland	61 min
Aug 9, 5:31 AM CDT	Special Weather Statement	FGF	Ransom	59 min
Aug 9, 6:01 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey	59 min
Aug 9, 9:09 AM CDT	Special Weather Statement	FGF	Grand Forks	66 min
Aug 9, 9:51 AM CDT	Special Weather Statement	FGF	Walsh	54 min
Aug 9, 10:12 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson, Ramsey, Walsh	63 min
Aug 9, 10:24 AM CDT	Special Weather Statement	FGF	Cavalier, Towner	66 min
Aug 9, 11:05 AM CDT	Special Weather Statement	FGF	Walsh	55 min
Aug 9, 11:24 AM CDT	Special Weather Statement	FGF	Cavalier, Pembina	66 min
Aug 9, 11:28 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina, Walsh	62 min
Aug 9, 11:42 AM CDT	Tornado Warning	FGF	Cavalier, Pembina, Walsh	36 min
Aug 9, 12:27 PM CDT	Special Weather Statement	FGF	Grand Forks, Nelson, Walsh	63 min
Aug 9, 1:29 PM CDT	Special Weather Statement	FGF	Grand Forks	61 min
Aug 9, 2:14 PM CDT	Tornado Warning	FGF	Barnes, Cass	18 min
Aug 9, 2:25 PM CDT	Tornado Warning	FGF	Cass	30 min
Aug 9, 2:36 PM CDT	Tornado Warning Tornado observed	FGF	Traill	28 min
Aug 9, 3:38 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Sargent	25 min
Aug 9, 3:55 PM CDT	Severe Thunderstorm Warning	FGF	Sargent	28 min
Aug 9, 4:24 PM CDT	Special Weather Statement	FGF	Sargent	36 min

Nearby

Special Weather Statements in North Dakota, 2020 Every special weather statement in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.