Alert archive / Minnesota / Tornado Warnings in 2020
Tornado Warning 10, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jun 17, 2020, 5:27 PM CDT for Roseau County, Minnesota. It was in force for 48 min. 8 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
- Jun 17, 2020, 5:27 PM CDT (22:27 UTC)
- Expired
- Jun 17, 2020, 6:15 PM CDT
- In force
- 48 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.5 in
County Roseau County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 158 km from the middle of the area, began a volume at 22:27 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 |
|---|---|---|---|
| Jun 17, 5:31 PM CDT | FUNNEL CLOUD | 2 S Greenbush, MN | REPORTED LOOKING TO THE SOUTHWEST FROM 2 SOUTH OF GREENBUSH |
| Jun 17, 5:31 PM CDT | FUNNEL CLOUD | 2 S Greenbush, MN | REPORTED LOOKING TO THE SOUTHWEST FROM 2 SOUTH OF GREENBUSH. |
| Jun 17, 5:31 PM CDT | FUNNEL CLOUD | 6 Sw Greenbush, MN | REPORTED LOOKING TO THE SOUTHWEST FROM 2 SOUTH OF GREENBUSH |
| Jun 17, 5:33 PM CDT | TORNADO 1 | 5 Sw Greenbush, MN | A TORNADO TRACKED INTERMITTENTLY FOR ROUGHLY 2 MILES TO AROUND 3 SW OF GREENBUSH BY 537 PM CDT. SEVERAL TREES WERE SNAPPED AND NUMEROUS LARGE BRANCHES AND LIMBS WERE BROKEN DOWN IN SHELTER BELTS AND GROVES. VIDEO AND EYE WITNESS REPORTS DESCRIBE THE TORNADO AS |
| Jun 17, 5:35 PM CDT | HAIL 1 | 6 W Greenbush, MN | |
| Jun 17, 5:40 PM CDT | HAIL 1 | Greenbush, MN | CORRECTS PREVIOUS HAIL REPORT FROM GREENBUSH. TIME ESTIMATED FROM RADAR. |
| Jun 17, 5:40 PM CDT | HAIL 1 | Greenbush, MN | TIME ESTIMATED FROM RADAR. |
| Jun 17, 5:44 PM CDT | TSTM WND DMG | Greenbush, MN | NUMEROUS LARGE TREE BRANCHES AND LIMBS WERE BROKEN DOWN AROUND TOWN. A FEW PINE, POPLAR, AND OAK TREES WERE SNAPPED. |
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 |
|---|---|---|---|
| Jun 17, 5:21 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
International Fa, MN (KINL), launched 12:00Z, 10.5 hours before the alert went out and 213 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
- 1121 J/kg
- Mixed-layer CIN
- -349 J/kg
- Mixed-layer LCL
- 1518 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 228 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
The text
As transmitted.
052
WFUS53 KFGF 172227
TORFGF
MNC135-172315-
/O.NEW.KFGF.TO.W.0010.200617T2227Z-200617T2315Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Grand Forks ND
527 PM CDT Wed Jun 17 2020
The National Weather Service in Grand Forks has issued a
* Tornado Warning for...
Western Roseau County in northwestern Minnesota...
* Until 615 PM CDT.
* At 527 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Leo, or 22 miles west of Roseau, moving northeast
at 35 mph.
HAZARD...Tornado and ping pong ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
* Locations impacted include...
Greenbush, Badger, Fox, Pinecreek, Leo, Ross and Haug.
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 4854 9627 4861 9639 4871 9639 4900 9625
4900 9556
TIME...MOT...LOC 2227Z 217DEG 30KT 4873 9623
TORNADO...RADAR INDICATED
HAIL...1.50IN
$$
CJ2 follow-up statements
834
WWUS53 KFGF 172247
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
547 PM CDT Wed Jun 17 2020
MNC135-172315-
/O.CON.KFGF.TO.W.0010.000000T0000Z-200617T2315Z/
Roseau MN-
547 PM CDT Wed Jun 17 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR WESTERN
ROSEAU COUNTY...
At 547 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Haug, or 14 miles west of Roseau, moving northeast
at 35 mph.
HAZARD...TORNADO and golf ball size hail.
SOURCE...Weather spotters reported a funnel cloud.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
Locations impacted include...
Greenbush, Badger, Fox, Pinecreek, Ross and Haug.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4863 9613 4870 9626 4900 9615 4900 9556
TIME...MOT...LOC 2247Z 217DEG 30KT 4886 9608
TORNADO...RADAR INDICATED
HAIL...1.75IN
$$
CJ460
WWUS53 KFGF 172302
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
602 PM CDT Wed Jun 17 2020
MNC135-172315-
/O.CON.KFGF.TO.W.0010.000000T0000Z-200617T2315Z/
Roseau MN-
602 PM CDT Wed Jun 17 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHWESTERN ROSEAU COUNTY...
At 601 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Pinecreek, or 12 miles northwest of Roseau, moving
northeast at 35 mph.
HAZARD...TORNADO and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
Locations impacted include...
Badger, Fox, Pinecreek and Ross.
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 4870 9602 4880 9615 4900 9600 4900 9556
TIME...MOT...LOC 2301Z 217DEG 30KT 4896 9597
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
CJThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 4:45 PM CDT | Severe Thunderstorm Warning | FGF | Kittson, Marshall, Roseau | 60 min |
| Jun 17, 6:07 PM CDT | Tornado Warning | FGF | Roseau | 13 min |
| Jun 17, 6:16 PM CDT | Special Weather Statement | FGF | Kittson | 59 min |
| Jun 17, 6:45 PM CDT | Severe Thunderstorm Warning | FGF | Kittson, Marshall | 60 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.