Alert archive / Minnesota / Tornado Warnings in 2018
Tornado Warning 13, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jun 28, 2018, 2:48 PM CDT for Mahnomen County, Norman County, Polk County, Minnesota. It was in force for 27 min. 1 report 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 28, 2018, 2:48 PM CDT (19:48 UTC)
- Expired
- Jun 28, 2018, 3:15 PM CDT
- In force
- 27 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Mahnomen County, MN, Norman County, MN, Polk County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 101 km from the middle of the area, began a volume at 19:47 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 28, 2:51 PM CDT | TORNADO 1 | Wsw Ranum, MN | A TORNADO LIKELY TRACKED FOR A MILE OR SO TO THE SOUTHEAST, AND ENDED AROUND 1 MILE SSE OF RANUM BY 254 PM CDT. ONE LARGE COTTONWOOD WAS SNAPPED A FELL TO THE NORTH, WHILE A NEARBY POWER POLE WAS SNAPPED AND FELL TO THE EAST. NO FIELD SCARRING WAS NOTED. PEAK |
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 28, 1:33 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
International Fa, MN (KINL), launched 12:00Z, 7.8 hours before the alert went out and 237 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
- 2670 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
997
WFUS53 KFGF 281948
TORFGF
MNC087-107-119-282015-
/O.NEW.KFGF.TO.W.0013.180628T1948Z-180628T2015Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Eastern ND/Grand Forks ND
248 PM CDT THU JUN 28 2018
The National Weather Service in Grand Forks has issued a
* Tornado Warning for...
Northeastern Norman County in northwestern Minnesota...
Southeastern Polk County in northwestern Minnesota...
Western Mahnomen County in northwestern Minnesota...
* Until 315 PM CDT.
* At 247 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Rindal, or 43 miles south of Thief River Falls,
moving southeast at 25 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
* This dangerous storm will be near...
Ranum around 250 PM CDT.
Winger around 300 PM CDT.
Bejou around 310 PM CDT.
Mahnomen around 315 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Grand Forks.
&&
LAT...LON 4723 9591 4747 9627 4761 9616 4758 9568
TIME...MOT...LOC 1947Z 297DEG 21KT 4749 9615
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
BP1 follow-up statement
094
WWUS53 KFGF 282010
SVSFGF
Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
310 PM CDT THU JUN 28 2018
MNC087-107-119-282020-
/O.EXP.KFGF.TO.W.0013.000000T0000Z-180628T2015Z/
Norman MN-Polk MN-Mahnomen MN-
310 PM CDT THU JUN 28 2018
...THE TORNADO WARNING FOR NORTHEASTERN NORMAN...SOUTHEASTERN POLK
AND WESTERN MAHNOMEN COUNTIES WILL EXPIRE AT 315 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire. However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.
A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
northwestern Minnesota.
LAT...LON 4723 9591 4747 9627 4761 9616 4758 9568
TIME...MOT...LOC 2010Z 297DEG 21KT 4743 9599
$$
BPThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 12:40 PM CDT | Special Weather Statement | FGF | Beltrami, Clearwater | 65 min |
| Jun 28, 12:50 PM CDT | Special Weather Statement | FGF | Polk | 25 min |
| Jun 28, 1:14 PM CDT | Special Weather Statement | FGF | Polk | 31 min |
| Jun 28, 1:27 PM CDT | Severe Thunderstorm Warning | FGF | Pennington, Polk, Red Lake | 48 min |
| Jun 28, 1:34 PM CDT | Severe Thunderstorm Warning | FGF | Norman, Polk | 41 min |
| Jun 28, 1:41 PM CDT | Severe Thunderstorm Warning | FGF | Norman, Polk | 34 min |
| Jun 28, 1:51 PM CDT | Special Weather Statement | FGF | Clearwater | 39 min |
| Jun 28, 2:13 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Mahnomen, Norman, Polk, Red Lake | 47 min |
| Jun 28, 2:18 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 42 min |
| Jun 28, 2:59 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater, Polk, Red Lake | 46 min |
| Jun 28, 3:31 PM CDT | Special Weather Statement | FGF | Mahnomen | 59 min |
| Jun 28, 3:40 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 50 min |
| Jun 28, 3:44 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 26 min |
Nearby
Tornado Warnings in Minnesota, 2018Every tornado warning in 2018Tornadoes in 2018
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.