Alert archive / North Dakota / Tornado Warnings in 2021

Tornado Warning 14, NWS Grand Forks, ND

October 9, 2021Richland County, Sargent County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Oct 9, 2021, 6:35 PM CDT for Richland County, Sargent County, North Dakota. It was in force for 25 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: Oct 9, 2021, 6:35 PM CDT (23:35 UTC)
Expired: Oct 9, 2021, 7:00 PM CDT
In force: 25 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Richland County, ND, Sargent County, ND

The radar

The Aberdeen radar (KABR), 102 km from the middle of the area, began a volume at 23:36 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
Oct 9, 6:40 PM CDT	TORNADO 0	7 Sse Lidgerwood, ND	PICTURES AND GIF OF BRIEF TORNADO REPORTED BY A TRAINED SPOTTER AND POSTED VIA SOCIAL MEDIA. WINDS ESTIMATED TO 70 MPH.
Oct 9, 6:40 PM CDT	TORNADO	7 Se Lidgerwood, ND	PICTURES AND GIF OF POSSIBLE TORNADO FROM A SPOTTER ON SOCIAL MEDIA.
Oct 9, 6:44 PM CDT	TSTM WND GST 70	8 S Lidgerwood, ND	TRAINED SPOTTER REPORTS 70MPH WIND GUSTS
Oct 9, 6:54 PM CDT	TSTM WND GST 62	6 Ssw Hankinson, ND	PERSONAL WEATHER STATION SSW OF HANKINSON REPORTS 62MPH WIND GUST

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
Oct 9, 2:56 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.6 hours before the alert went out and 149 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: 4 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 713 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 200 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

527 
WFUS53 KFGF 092335
TORFGF
NDC077-081-100000-
/O.NEW.KFGF.TO.W.0014.211009T2335Z-211010T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Grand Forks ND
635 PM CDT Sat Oct 9 2021

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Southwestern Richland County in southeastern North Dakota...
  Eastern Sargent County in southeastern North Dakota...

* Until 700 PM CDT.

* At 634 PM CDT, severe thunderstorms capable of producing both
  tornadoes and extensive straight line wind damage were located
  along a line extending from near Forman to Lake Traverse
  Reservation, moving northeast at 35 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* These dangerous storms will be near...
  Milnor around 650 PM CDT.

Other locations in the path of these tornadic storms include Hamlin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4594 9751 4612 9773 4628 9746 4594 9684
TIME...MOT...LOC 2334Z 236DEG 31KT 4612 9758 4590 9717 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

DJR

1 follow-up statement

594 
WWUS53 KFGF 092357
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
657 PM CDT Sat Oct 9 2021

NDC077-081-100006-
/O.EXP.KFGF.TO.W.0014.000000T0000Z-211010T0000Z/
Richland ND-Sargent ND-
657 PM CDT Sat Oct 9 2021

...THE TORNADO WARNING FOR SOUTHWESTERN RICHLAND AND EASTERN SARGENT
COUNTIES WILL EXPIRE AT 700 PM CDT...

The tornado threat has diminished and the Tornado Warning has been 
cancelled. However, damaging winds remain likely and a Severe 
Thunderstorm Warning remains in effect for the area.

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
southeastern North Dakota.

LAT...LON 4594 9751 4612 9773 4628 9746 4594 9684
TIME...MOT...LOC 2356Z 236DEG 31KT 4621 9739 4599 9698 

$$

DJR

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 8, 7:00 PM CDT	Special Weather Statement	FGF	Traill	30 min
Oct 8, 7:08 PM CDT	Special Weather Statement	FGF	Traill	37 min
Oct 9, 5:46 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Ransom, Richland, Sargent	59 min
Oct 9, 6:43 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	62 min

Nearby

Tornado Warnings in North Dakota, 2021 Every tornado warning in 2021 Tornadoes 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.