Alert archive / North Dakota / Tornado Warnings in 2017
Tornado Warning 29, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jul 11, 2017, 6:27 PM CDT for Cavalier County, Pembina County, Walsh County, North Dakota. 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
- Jul 11, 2017, 6:27 PM CDT (23:27 UTC)
- Expired
- Jul 11, 2017, 7:15 PM CDT
- In force
- 48 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Cavalier County, ND, Pembina County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 114 km from the middle of the area, began a volume at 23:30 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 11, 6:29 PM CDT | FUNNEL CLOUD | 2 Ene Fairdale, ND | LARGE CONE SHAPED FUNNEL WAS REPORTED NEAR FAIRDALE. |
| Jul 11, 6:30 PM CDT | TORNADO 1 | 5 Nw Adams, ND | THIS ROPE TORNADO TRACKED FOR ROUGHLY 7 MILES TO THE EAST SOUTHEAST AND EVENTUALLY PRODUCED A SUBSTANTIAL DUST SWIRL BEFORE IT ENDED ABOUT 2 ENE OF ADAMS BY 646 PM CDT. IT WAS VIEWED AND PHOTOGRAPHED FROM MULTIPLE LOCATIONS. THOUGH IT REMAINED OVER LARGELY OPE |
| Jul 11, 6:33 PM CDT | FUNNEL CLOUD | 2 Ese Fairdale, ND | POSSIBLE TORNADO ON THE GROUND BETWEEN ADAMS AND FAIRDALE |
| Jul 11, 6:35 PM CDT | TORNADO | 5 Nw Adams, ND | SMALL ROPE FUNNEL REPORTED BETWEEN ADAMS AND FAIRDALE. |
| Jul 11, 6:38 PM CDT | FUNNEL CLOUD | 3 N Adams, ND | EDMORE FIRE DEPARTMENT REPORTED FUNNEL NEAR ADAMS - RELAYED VIA 911 CALL CENTER |
| Jul 11, 6:45 PM CDT | TORNADO | 2 Ene Adams, ND | TORNADO WITH DEBRIS VIEWED FROM JUST EAST OF ADAMS AND FROM WEST OF PARK RIVER. |
| Jul 11, 7:00 PM CDT | HAIL 1.5 | 1 N Park River, ND | |
| Jul 11, 7:20 PM CDT | HAIL 1 | 2 E Park River, ND |
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 11, 4:48 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 11.5 hours before the alert went out and 274 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
- 34 J/kg
- Mixed-layer CIN
- -303 J/kg
- Mixed-layer LCL
- 2064 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
009 WFUS53 KFGF 112327 TORFGF NDC019-067-099-120015- /O.NEW.KFGF.TO.W.0029.170711T2327Z-170712T0015Z/ BULLETIN - EAS ACTIVATION REQUESTED Tornado Warning National Weather Service Eastern ND/Grand Forks ND 627 PM CDT TUE JUL 11 2017 The National Weather Service in Grand Forks has issued a * Tornado Warning for... Southeastern Cavalier County in northeastern North Dakota... Western Walsh County in northeastern North Dakota... Southwestern Pembina County in northeastern North Dakota... * Until 715 PM CDT. * At 627 PM CDT, a severe thunderstorm capable of producing a tornado was located near Fairdale, or 20 miles southeast of Langdon, moving east at 30 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... Adams around 635 PM CDT. Union around 640 PM CDT. Gardar around 645 PM CDT. Edinburg around 650 PM CDT. Park River around 705 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 4840 9829 4864 9815 4857 9759 4822 9776 TIME...MOT...LOC 2327Z 287DEG 25KT 4852 9811 TORNADO...RADAR INDICATED HAIL...1.00IN $$ JH
2 follow-up statements
319
WWUS53 KFGF 112338
SVSFGF
Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
638 PM CDT TUE JUL 11 2017
NDC019-067-099-120015-
/O.CON.KFGF.TO.W.0029.000000T0000Z-170712T0015Z/
Cavalier ND-Walsh ND-Pembina ND-
638 PM CDT TUE JUL 11 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
SOUTHEASTERN CAVALIER...WESTERN WALSH AND SOUTHWESTERN PEMBINA
COUNTIES...
At 635 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Adams, or 24 miles southeast of Langdon, moving
southeast at 25 mph.
HAZARD...TORNADO and quarter size hail.
SOURCE...Radar indicated rotation. At 635 PM CDT, multiple reports
of a tornado was reported between Adams and Fairdale ND.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
This dangerous storm will be near...
Adams around 640 PM CDT.
Edinburg around 655 PM CDT.
Lankin around 705 PM CDT.
Park River and Pisek around 715 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.
&&
LAT...LON 4840 9828 4864 9814 4857 9759 4822 9776
TIME...MOT...LOC 2335Z 294DEG 21KT 4846 9810
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
JH889
WWUS53 KFGF 112357
SVSFGF
Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
657 PM CDT TUE JUL 11 2017
NDC019-067-099-120015-
/O.CON.KFGF.TO.W.0029.000000T0000Z-170712T0015Z/
Cavalier ND-Walsh ND-Pembina ND-
657 PM CDT TUE JUL 11 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
SOUTHEASTERN CAVALIER...WESTERN WALSH AND SOUTHWESTERN PEMBINA
COUNTIES...
At 655 PM CDT, a confirmed tornado was located near Park River, or 21
miles west of Grafton, moving east at 35 mph.
HAZARD...TORNADO and quarter size hail.
SOURCE...Law enforcement confirmed tornado. At 645 PM CDT, Damage
and debris was reported 2 miles east of ADAMS.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
This tornado will be near...
Park River around 705 PM CDT.
Pisek around 710 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 4840 9828 4864 9814 4857 9759 4822 9776
TIME...MOT...LOC 2355Z 288DEG 30KT 4841 9788
TORNADO...OBSERVED
HAIL...1.00IN
$$
JHThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 5:09 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson | 66 min |
| Jul 11, 5:15 PM CDT | Tornado Warning | FGF | Cavalier, Towner | 45 min |
| Jul 11, 5:25 PM CDT | Tornado Warning | FGF | Walsh | 50 min |
| Jul 11, 5:35 PM CDT | Tornado Warning | FGF | Grand Forks, Walsh | 40 min |
| Jul 11, 5:45 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 60 min |
| Jul 11, 5:46 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 59 min |
| Jul 11, 5:48 PM CDT | Tornado Warning | FGF | Cavalier, Ramsey, Walsh | 42 min |
| Jul 11, 6:01 PM CDT | Tornado Warning | FGF | Grand Forks | 44 min |
| Jul 11, 6:16 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Walsh | 44 min |
| Jul 11, 6:21 PM CDT | Tornado Warning | FGF | Grand Forks, Walsh | 39 min |
| Jul 11, 6:42 PM CDT | Tornado Warning | FGF | Grand Forks, Steele, Traill | 48 min |
| Jul 11, 6:49 PM CDT | Areal Flood Advisory | FGF | Walsh | 2 hr |
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.