Alert archive / Minnesota / Tornado Warnings in 2020
Tornado Warning 19, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jul 8, 2020, 4:43 AM CDT for Grant County, Otter Tail County, Minnesota. It was in force for 47 min. 9 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
- Jul 8, 2020, 4:43 AM CDT (09:43 UTC)
- Expired
- Jul 8, 2020, 5:30 AM CDT
- In force
- 47 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Grant County, MN, Otter Tail County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 182 km from the middle of the area, began a volume at 09:42 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 8, 5:00 AM CDT | TSTM WND DMG | Ottertail, MN | RELAYED BY BROADCAST MEDIA. TIME ESTIMATED. REPORT OF CLOSE TO TEN CAMPERS FLIPPED OVER AT LAKESIDE RV PARK. PICTURE SHARED VIA SOCIAL MEDIA. NO INJURIES REPORTED AT THIS TIME. |
| Jul 8, 5:04 AM CDT | TSTM WND DMG | 3 Wsw Vining, MN | NUMEROUS LARGE OAK BRANCHES BROKEN DOWN. |
| Jul 8, 5:10 AM CDT | TORNADO 2 | 3 Sw Henning, MN | A TORNADO WRAPPED IN HEAVY RAIN AND DOWNBURST WINDS TRACKED TO THE ENE FOR ABOUT 2 MILES,ENDING ABOUT 1 SSE OF HENNING BY 515 AM CDT. IT SNAPPED MULTIPLE POWER POLES AT THREE POINTS ALONG ITS PATH. IT ALSO TOSSED CALVING SHEDS AND FLIPPED AN IRIGATION SYSTEM, |
| Jul 8, 5:15 AM CDT | TSTM WND DMG | 1 E Henning, MN | TREES BLOWN DOWN, AN IRRIGATION SYSTEM FLIPPED, CALF SHEDS TOSSED. STRONG WINDS FROM 510 THROUGH 520 AM CDT. REPORTS AND PHOTOS POSTED VIA SOCIAL MEDIA. |
| Jul 8, 5:15 AM CDT | TSTM WND DMG | 1 E Henning, MN | TREES BLOWN DOWN, AN IRRIGATION SYSTEM FLIPPED, CALF SHEDS TOSSED. STRONG WINDS FROM 510 THROUGH 520 AM CDT. REPORTS AND PHOTOS POSTED VIA SOCIAL MEDIA. |
| Jul 8, 5:30 AM CDT | TSTM WND GST 60 | 1 N New York Mills, MN | PEAK WINDS MEASURED AT A PERSONAL WEATHER STATION. STRONG AND PERSISTENT WINDS WITH TREES LAYING SIDEWAYS. MULTIPLE GUSTS TO 60 MPH FROM 530 THROUGH 535 AM CDT. |
| Jul 8, 5:30 AM CDT | TSTM WND GST 60 | 1 N New York Mills, MN | PEAK WINDS MEASURED AT A PERSONAL WEATHER STATION. STRONG AND PERSISTENT WINDS WITH TREES LAYING SIDEWAYS. MULTIPLE GUSTS TO 60 MPH FROM 530 THROUGH 535 AM CDT. |
| Jul 8, 5:34 AM CDT | TSTM WND GST 60 | 1 N New York Mills, MN | PEAK WINDS MEASURED AT A PERSONAL WEATHER STATION. STRONG AND PERSISTENT WINDS WITH TREES LAYING SIDEWAYS. |
| Jul 8, 5:34 AM CDT | TSTM WND GST 60 | 1 N New York Mills, MN | PEAK WINDS MEASURED AT A PERSONAL WEATHER STATION. STRONG AND PERSISTENT WINDS WITH TREES LAYING SIDEWAYS. |
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 |
|---|---|---|---|
| Jul 7, 11:44 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 9.7 hours before the alert went out and 232 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
- 1166 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1464 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted.
413
WFUS53 KFGF 080943
TORFGF
MNC051-111-081030-
/O.NEW.KFGF.TO.W.0019.200708T0943Z-200708T1030Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Grand Forks ND
443 AM CDT Wed Jul 8 2020
The National Weather Service in Grand Forks has issued a
* Tornado Warning for...
Otter Tail County in west central Minnesota...
North central Grant County in west central Minnesota...
* Until 530 AM CDT.
* At 442 AM CDT, a line of severe thunderstorms capable of producing
a tornado was located near Phelps, or 12 miles northeast of Fergus
Falls, moving east at 55 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
* This dangerous storm will be near...
Phelps and Star Lake around 445 AM CDT.
Amor, Ottertail Lake and Battle Lake around 450 AM CDT.
Glendalough State Park and Richville around 455 AM CDT.
Ottertail around 500 AM CDT.
Henning around 505 AM CDT.
This includes Interstate 94 in Minnesota between mile markers 57 and
71.
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.
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4610 9615 4655 9600 4669 9517 4611 9515
TIME...MOT...LOC 0942Z 265DEG 48KT 4641 9589
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Knutsvig1 follow-up statement
882
WWUS53 KFGF 080955
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
455 AM CDT Wed Jul 8 2020
MNC051-081004-
/O.CAN.KFGF.TO.W.0019.000000T0000Z-200708T1030Z/
Grant MN-
455 AM CDT Wed Jul 8 2020
...THE TORNADO WARNING FOR NORTH CENTRAL GRANT COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 600 AM CDT for
west central Minnesota.
LAT...LON 4655 9583 4669 9517 4611 9515 4611 9602
TIME...MOT...LOC 0954Z 265DEG 48KT 4642 9564
$$
MNC111-081030-
/O.CON.KFGF.TO.W.0019.000000T0000Z-200708T1030Z/
Otter Tail MN-
455 AM CDT Wed Jul 8 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 AM CDT FOR EASTERN
OTTER TAIL COUNTY...
At 454 AM CDT, a severe thunderstorm capable of producing a tornado
was located over northeastern Ottertail Lake, or 22 miles northeast
of Fergus Falls, moving east at 55 mph.
HAZARD...TORNADO.
SOURCE...Radar indicated rotation.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
This dangerous storm will be near...
Henning around 505 AM CDT.
Deer Creek and New York Mills around 510 AM CDT.
Bluffton around 515 AM CDT.
This includes Interstate 94 in Minnesota between mile markers 64 and
70.
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.
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4655 9583 4669 9517 4611 9515 4611 9602
TIME...MOT...LOC 0954Z 265DEG 48KT 4642 9564
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
KnutsvigThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 1:42 AM CDT | Special Weather Statement | FGF | Wilkin | 63 min |
| Jul 8, 2:12 AM CDT | Severe Thunderstorm Warning | FGF | Clay, Wilkin | 63 min |
| Jul 8, 2:18 AM CDT | Severe Thunderstorm Warning | FGF | Clay, Norman, Polk | 57 min |
| Jul 8, 2:22 AM CDT | Severe Thunderstorm Warning | FGF | Kittson, Marshall, Polk | 53 min |
| Jul 8, 3:10 AM CDT | Special Weather Statement | FGF | Clay | 50 min |
| Jul 8, 3:17 AM CDT | Special Weather Statement | FGF | Clay | 58 min |
| Jul 8, 3:22 AM CDT | Severe Thunderstorm Warning | FGF | Clay, Wilkin | 38 min |
| Jul 8, 3:36 AM CDT | Areal Flood Advisory | FGF | Clay | 8 hr |
| Jul 8, 3:58 AM CDT | Severe Thunderstorm Warning | FGF | Grant, Otter Tail, Wilkin | 62 min |
| Jul 8, 4:14 AM CDT | Tornado Warning | FGF | Otter Tail, Wilkin | 31 min |
| Jul 8, 5:00 AM CDT | Severe Thunderstorm Warning | FGF | Grant, Otter Tail, Wilkin | 60 min |
| Jul 8, 5:20 AM CDT | Tornado Warning | FGF | Becker, Hubbard, Otter Tail, Wadena | 40 min |
| Jul 8, 5:53 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Hubbard, Otter Tail, Wadena | 27 min |
| Jul 8, 6:19 AM CDT | Special Weather Statement | FGF | Wadena | 56 min |
| Jul 8, 10:42 AM CDT | River Flood Warning | FGF | Clay | 4 days |
| Jul 8, 5:00 PM CDT | Special Weather Statement | FGF | Otter Tail | 45 min |
| Jul 8, 5:08 PM CDT | Tornado Warning | FGF | Grant, Otter Tail | 52 min |
| Jul 8, 5:30 PM CDT | Special Weather Statement | FGF | Otter Tail | 60 min |
| Jul 8, 6:05 PM CDT | Special Weather Statement | FGF | Otter Tail | 25 min |
| Jul 8, 6:33 PM CDT | Special Weather Statement | FGF | Otter Tail | 27 min |
| Jul 8, 6:35 PM CDT | Tornado Warning | FGF | Otter Tail, Wadena | 25 min |
Nearby
Tornado Warnings in Minnesota, 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.