Alert archive / North Dakota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 9, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 7, 2017, 2:39 PM CDT for Walsh County, North Dakota; Marshall County, Minnesota. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 7, 2017, 2:39 PM CDT (19:39 UTC)
- Expired
- Jun 7, 2017, 2:59 PM CDT
- In force
- 20 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Marshall County, MN, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 91 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.
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 7, 2:11 PM CDT | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
International Fa, MN (KINL), launched 12:00Z, 7.7 hours before the alert went out and 276 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
- 2122 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
575 WUUS53 KFGF 071939 SVRFGF MNC089-NDC099-072045- /O.NEW.KFGF.SV.W.0009.170607T1939Z-170607T2045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Eastern ND/Grand Forks ND 239 PM CDT WED JUN 7 2017 The National Weather Service in Grand Forks has issued a * Severe Thunderstorm Warning for... Southwestern Marshall County in northwestern Minnesota... East central Walsh County in northeastern North Dakota... * Until 345 PM CDT. * At 238 PM CDT, a severe thunderstorm was located over Big Woods, or 17 miles southeast of Grafton, moving northeast at 30 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * this severe thunderstorm will remain over mainly rural areas of southwestern Marshall and east central Walsh Counties. This includes Interstate 29 between mile markers 167 and 174. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && A tornado watch remains in effect until 600 PM CDT for northwestern Minnesota. LAT...LON 4821 9700 4829 9723 4852 9714 4838 9673 TIME...MOT...LOC 1938Z 214DEG 25KT 4830 9707 TORNADO...POSSIBLE HAIL...1.00IN WIND...<50MPH $$ Gust
1 follow-up statement
965
WWUS53 KFGF 071959
SVSFGF
Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
259 PM CDT WED JUN 7 2017
MNC089-NDC099-072009-
/O.CAN.KFGF.SV.W.0009.000000T0000Z-170607T2045Z/
Marshall MN-Walsh ND-
259 PM CDT WED JUN 7 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MARSHALL AND EAST
CENTRAL WALSH COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning has been cancelled.
A tornado watch remains in effect until 600 PM CDT for northwestern
Minnesota.
LAT...LON 4821 9700 4829 9723 4852 9714 4838 9673
TIME...MOT...LOC 1957Z 214DEG 25KT 4842 9695
$$
GustThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 11:48 AM CDT | Special Weather Statement | FGF | Walsh | 57 min |
| Jun 7, 12:29 PM CDT | Special Weather Statement | FGF | Walsh | 61 min |
| Jun 7, 1:02 PM CDT | Tornado Warning | FGF | Grand Forks | 43 min |
| Jun 7, 1:05 PM CDT | Tornado Warning | FGF | Grand Forks, Traill | 25 min |
| Jun 7, 1:11 PM CDT | Tornado Warning | FGF | Grand Forks | 49 min |
| Jun 7, 1:29 PM CDT | Tornado Warning | FGF | Grand Forks, Traill | 46 min |
| Jun 7, 1:44 PM CDT | Tornado Warning | FGF | Grand Forks | 30 min |
| Jun 7, 1:56 PM CDT | Tornado Warning | FGF | Grand Forks | 35 min |
| Jun 7, 1:58 PM CDT | Tornado Warning | FGF | Grand Forks, Walsh | 47 min |
| Jun 7, 2:13 PM CDT | Tornado Warning | FGF | Grand Forks, Traill | 47 min |
| Jun 7, 2:57 PM CDT | Special Weather Statement | FGF | Polk | 63 min |
| Jun 7, 3:41 PM CDT | Special Weather Statement | FGF | Pennington, Polk, Red Lake | 64 min |
| Jun 7, 4:28 PM CDT | Special Weather Statement | FGF | Clearwater | 32 min |
| Jun 7, 5:07 PM CDT | Special Weather Statement | FGF | Clearwater | 23 min |
| Jun 7, 6:00 PM CDT | Special Weather Statement | FGF | Clearwater | 60 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2017Severe Thunderstorm Warnings in Minnesota, 2017Every severe thunderstorm warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.