Alert archive / North Dakota / Tornado Warnings in 2020
Tornado Warning 29, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Aug 9, 2020, 2:14 PM CDT for Barnes County, Cass County, North Dakota. It was in force for 18 min. 3 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
- Aug 9, 2020, 2:14 PM CDT (19:14 UTC)
- Expired
- Aug 9, 2020, 2:32 PM CDT
- In force
- 18 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Barnes County, ND, Cass County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 81 km from the middle of the area, began a volume at 19:14 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 |
|---|---|---|---|
| Aug 9, 2:17 PM CDT | TORNADO 1 | 6 Ssw Oriska, ND | REPORT AND PHOTO POSTED VIA SOCIAL MEDIA. THIS TORNADO TRACKED EASTWARD FOR ABOUT 3 TO 4 MILES AND LIFTED BY 224 PM CDT, ABOUT 6 SSE OR ORISKA. THIS TORNADO AND THE PRECEEDING FUNNEL WERE VIEWED FROM SEVERAL ANGLES AND LOCATIONS. IT IS REPORTED TO HAVE SNAPPED |
| Aug 9, 2:17 PM CDT | TORNADO | 6 Ssw Oriska, ND | REPORT AND PHOTO POSTED VIA SOCIAL MEDIA. |
| Aug 9, 2:17 PM CDT | TORNADO | 6 Ssw Oriska, ND | REPORT AND PHOTO 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 |
|---|---|---|---|
| Aug 9, 12:18 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 7.2 hours before the alert went out and 224 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1862 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
147 WFUS53 KFGF 091914 TORFGF NDC003-017-092000- /O.NEW.KFGF.TO.W.0029.200809T1914Z-200809T2000Z/ BULLETIN - EAS ACTIVATION REQUESTED Tornado Warning National Weather Service Grand Forks ND 214 PM CDT Sun Aug 9 2020 The National Weather Service in Grand Forks has issued a * Tornado Warning for... Southwestern Cass County in southeastern North Dakota... East central Barnes County in southeastern North Dakota... * Until 300 PM CDT. * At 214 PM CDT, a severe thunderstorm capable of producing a tornado was located near Oriska, or 8 miles southeast of Valley City, moving east at 20 mph. HAZARD...Tornado. SOURCE...Law enforcement reported funnel cloud. IMPACT...Expect damage to mobile homes, roofs, and vehicles. * Locations impacted include... Tower City, Buffalo, Oriska and Alice. This includes Interstate 94 in North Dakota between mile markers 300 and 316. 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 4683 9787 4697 9785 4698 9750 4668 9758 TIME...MOT...LOC 1914Z 284DEG 18KT 4687 9783 TORNADO...RADAR INDICATED HAIL...<.75IN $$ CJ
2 follow-up statements
782
WWUS53 KFGF 091922
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
222 PM CDT Sun Aug 9 2020
NDC003-017-092000-
/O.CON.KFGF.TO.W.0029.000000T0000Z-200809T2000Z/
Cass ND-Barnes ND-
222 PM CDT Sun Aug 9 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR
SOUTHWESTERN CASS AND EAST CENTRAL BARNES COUNTIES...
At 222 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Fingal, or 11 miles southeast of Valley City, moving
east at 20 mph.
HAZARD...TORNADO.
SOURCE...Weather spotters reported a tornado.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
Locations impacted include...
Tower City, Buffalo, Oriska and Alice.
This includes Interstate 94 in North Dakota between mile markers 302
and 316.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4683 9787 4694 9779 4695 9751 4668 9758
TIME...MOT...LOC 1922Z 289DEG 17KT 4684 9779
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
DJR947
WWUS53 KFGF 091932
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
232 PM CDT Sun Aug 9 2020
NDC003-017-091942-
/O.CAN.KFGF.TO.W.0029.000000T0000Z-200809T2000Z/
Cass ND-Barnes ND-
232 PM CDT Sun Aug 9 2020
...THE TORNADO WARNING FOR SOUTHWESTERN CASS AND EAST CENTRAL BARNES
COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
southeastern North Dakota.
LAT...LON 4683 9787 4694 9779 4695 9751 4668 9758
TIME...MOT...LOC 1930Z 284DEG 18KT 4683 9772
$$
DJRThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 6:57 AM CDT | Special Weather Statement | FGF | Benson, Ramsey | 48 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, 12:21 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina, Walsh | 54 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, 1:39 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Walsh | 66 min |
| Aug 9, 2:10 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Traill | 65 min |
| Aug 9, 2:25 PM CDT | Tornado Warning | FGF | Cass | 30 min |
| Aug 9, 2:36 PM CDT | Tornado Warning | FGF | Traill | 28 min |
| Aug 9, 2:52 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 53 min |
| Aug 9, 3:12 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 63 min |
| Aug 9, 3:20 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 22 min |
| Aug 9, 3:35 PM CDT | Tornado Warning | FGF | Cass | 18 min |
| Aug 9, 3:38 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 25 min |
| Aug 9, 3:53 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 48 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
Tornado Warnings in North Dakota, 2020Every tornado warning in 2020Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.