Alert archive / North Dakota / Tornado Warnings in 2020
Tornado Warning 32, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Aug 9, 2020, 2:36 PM CDT for Traill County, North Dakota. It was in force for 28 min. 5 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, 2:36 PM CDT (19:36 UTC)
- Expired
- Aug 9, 2020, 3:04 PM CDT
- In force
- 28 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 0.75 in
County Traill County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 20 km from the middle of the area, began a volume at 19:39 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, 2:45 PM CDT | FUNNEL CLOUD | 4 W Hillsboro, ND | PHOTO,REPORT,AND TIME POSTED VIA SOCIAL MEDIA. FUNNEL VERY CLOSE TO TOUCHDOWN. |
| Aug 9, 2:45 PM CDT | FUNNEL CLOUD | 4 W Hillsboro, ND | PHOTO,REPORT,AND TIME POSTED VIA SOCIAL MEDIA. FUNNEL VERY CLOSE TO TOUCHDOWN. |
| Aug 9, 2:45 PM CDT | TORNADO 0 | 4 W Hillsboro, ND | PHOTO, REPORT, AND TIME POSTED VIA SOCIAL MEDIA. MULTIPLE REPORTS OF A BRIEF TOUCHDOWN. POSSIBLE TRACK LESS THAN ONE QUATER MILE. PEAK WINDS ESTIMATED TO 70 MPH. MAXIMUM WIDTH TO 30 YARDS. |
| Aug 9, 2:57 PM CDT | FUNNEL CLOUD | 6 Wnw Halstad, ND | PERSISTENT WALL CLOUDS WITH SMALL FUNNEL LOWERING. VIEWED TO NORTH FROM HIGHWAY 200. PHOTO AND REPORT POSTED VIA SOCIAL MEDIA. |
| Aug 9, 2:57 PM CDT | FUNNEL CLOUD | 6 Wnw Halstad, ND | PERSISTENT WALL CLOUDS WITH SMALL FUNNEL LOWERING. VIEWED TO NORTH FROM HIGHWAY 200. PHOTO AND 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 |
|---|---|---|---|
| Aug 9, 12:18 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 7.6 hours before the alert went out and 281 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
- 2140 J/kg
- Mixed-layer CIN
- -174 J/kg
- Mixed-layer LCL
- 843 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted.
213 WFUS53 KFGF 091936 TORFGF NDC097-092015- /O.NEW.KFGF.TO.W.0032.200809T1936Z-200809T2015Z/ BULLETIN - EAS ACTIVATION REQUESTED Tornado Warning National Weather Service Grand Forks ND 236 PM CDT Sun Aug 9 2020 The National Weather Service in Grand Forks has issued a * Tornado Warning for... Central Traill County in southeastern North Dakota... * Until 315 PM CDT. * At 235 PM CDT, a confirmed tornado was located near Blanchard, or 34 miles south of Grand Forks, moving east at 20 mph. HAZARD...Tornado. SOURCE...Law enforcement reported a funnel cloud. IMPACT...Expect damage to mobile homes, roofs, and vehicles. * The tornado will be near... Hillsboro around 255 PM CDT. Other locations impacted by this tornadic thunderstorm include American Crystal Sugar. This includes Interstate 29 between mile markers 101 and 110. PRECAUTIONARY/PREPAREDNESS ACTIONS... To repeat, a tornado is on the ground. 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 4738 9727 4748 9723 4750 9688 4735 9694 TIME...MOT...LOC 1935Z 278DEG 18KT 4742 9719 TORNADO...OBSERVED HAIL...<.75IN $$ DJR
2 follow-up statements
991
WWUS53 KFGF 091954
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
254 PM CDT Sun Aug 9 2020
NDC097-092015-
/O.CON.KFGF.TO.W.0032.000000T0000Z-200809T2015Z/
Traill ND-
254 PM CDT Sun Aug 9 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR EAST
CENTRAL TRAILL COUNTY...
At 254 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Hillsboro, or 35 miles south of Grand Forks, moving
east at 25 mph.
HAZARD...TORNADO.
SOURCE...Radar indicated rotation.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
This tornadic thunderstorm will remain over mainly rural areas of
east central Traill County.
This includes Interstate 29 between mile markers 101 and 102.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4736 9707 4746 9703 4748 9689 4735 9694
TIME...MOT...LOC 1954Z 277DEG 24KT 4740 9698
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
DJR120
WWUS53 KFGF 092004
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
304 PM CDT Sun Aug 9 2020
NDC097-092014-
/O.CAN.KFGF.TO.W.0032.000000T0000Z-200809T2015Z/
Traill ND-
304 PM CDT Sun Aug 9 2020
...THE TORNADO WARNING FOR EAST CENTRAL TRAILL COUNTY IS CANCELLED...
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area. However
small hail and gusty winds are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
southeastern North Dakota.
LAT...LON 4736 9707 4746 9703 4748 9689 4735 9694
TIME...MOT...LOC 2003Z 278DEG 18KT 4739 9690
$$
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, 2:14 PM CDT | Tornado Warning | FGF | Barnes, Cass | 18 min |
| Aug 9, 2:25 PM CDT | Tornado Warning | FGF | Cass | 30 min |
| Aug 9, 2:52 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.