Alert archive / North Dakota / Tornado Warnings in 2017
Tornado Warning 4, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jun 7, 2017, 1:02 PM CDT for Grand Forks County, North Dakota. It was in force for 43 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
- Jun 7, 2017, 1:02 PM CDT (18:02 UTC)
- Expired
- Jun 7, 2017, 1:45 PM CDT
- In force
- 43 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 0.75 in
County Grand Forks County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 40 km from the middle of the area, began a volume at 18:03 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 7, 1:02 PM CDT | TORNADO 0 | 2 S Arvilla, ND | THIS TORNADO APPARENTLY TOUCHED DOWN AROUND 2 MILES SOUTH OF ARVILLA AND TRACKED VERY SLOWLY TO THE ENE ACROSS CR2 FOR ABOUT A QUARTER OF A MILE, ENDING BY 104 PM CDT. NO SIGNIFICANT DAMAGE WAS DETECTED. PEAK WINDS ESTIMATED TO 70 MPH. MAXIMUM WIDTH ESTIMATED |
| Jun 7, 1:17 PM CDT | TORNADO 0 | 3 W Emerado, ND | A FUNNEL CLOUD WAS REPORTED BY GFAFB OBSERVERS WEST-SOUTHWEST OF THEIR LOCATION. A DAMAGE SURVEY NOTED AN APPARENT BRIEF TOUCHDOWN WITH BROKEN BRACHES IN A SHELTER BELT JUST SOUTH OF HIGHWAY 2 AND WITH BRANCH DEBRIS FLUNG EASTWARD INTO THE ADJACENT FIELD. THE |
| Jun 7, 1:18 PM CDT | FUNNEL CLOUD | 7 S Grand Forks Afb, ND | REPORTED ON KRDR METAR AT 071852Z. |
| Jun 7, 1:18 PM CDT | FUNNEL CLOUD | 7 S Grand Forks Afb, ND | |
| Jun 7, 1:20 PM CDT | TORNADO | 3 Sw Emerado, ND | BRIEF TOUCHDOWN NOTED AND PHOTO POSTED VIA SOCIAL MEDIA. LOCATION APPROXIMATE BASED ON RADAR AND EARLIER FUNNEL REPORT CLOUD REPORTS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 6.0 hours before the alert went out and 273 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
- 1440 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
205 WFUS53 KFGF 071802 TORFGF NDC035-071845- /O.NEW.KFGF.TO.W.0004.170607T1802Z-170607T1845Z/ BULLETIN - EAS ACTIVATION REQUESTED Tornado Warning National Weather Service Eastern ND/Grand Forks ND 102 PM CDT WED JUN 7 2017 The National Weather Service in Grand Forks has issued a * Tornado Warning for... Central Grand Forks County in northeastern North Dakota... * Until 145 PM CDT. * At 102 PM CDT, a confirmed tornado was located over Arvilla, or 19 miles west of Grand Forks, and is nearly stationary. HAZARD...Tornado. SOURCE...Weather spotters confirmed tornado. IMPACT...Expect damage to mobile homes, roofs, and vehicles. * The tornado will be near... Arvilla around 110 PM CDT. Grand Forks AFB around 145 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 4784 9752 4792 9756 4795 9740 4784 9736 TIME...MOT...LOC 1802Z 247DEG 3KT 4788 9749 TORNADO...OBSERVED HAIL...<.75IN $$ voelker
1 follow-up statement
138
WWUS53 KFGF 071816
SVSFGF
Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
116 PM CDT WED JUN 7 2017
NDC035-071845-
/O.CON.KFGF.TO.W.0004.000000T0000Z-170607T1845Z/
Grand Forks ND-
116 PM CDT WED JUN 7 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR CENTRAL
GRAND FORKS COUNTY...
At 115 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Arvilla, or 18 miles west of Grand Forks, and is
nearly stationary.
HAZARD...TORNADO.
SOURCE...Radar indicated rotation.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
This dangerous storm will be near...
Grand Forks AFB around 145 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.
&&
LAT...LON 4784 9744 4793 9748 4795 9740 4784 9736
TIME...MOT...LOC 1815Z 247DEG 3KT 4788 9747
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
voelkerThe 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, 1:05 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, 2:39 PM CDT | Severe Thunderstorm Warning | FGF | Walsh | 20 min |
Nearby
Tornado Warnings in North Dakota, 2017Every tornado warning in 2017Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.