A thunderstorm tracked over central Lake of the Woods County, north of the Williams area, and produced a funnel cloud.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS FGF wrote it up.
A thunderstorm tracked over central Lake of the Woods County, north of the Williams area, and produced a funnel cloud.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Forks, ND wrote its last area forecast discussion before the first event at Jul 18, 6:30 PM CST, 30 minutes earlier.
Area Forecast Discussion National Weather Service Grand Forks ND 730 PM CDT Thu Jul 18 2019 .UPDATE... Issued at 726 PM CDT Thu Jul 18 2019 Updated tonight into Friday gridds...Friday mainly to match up with new grids from WFO BIS. But storms never got going in 99 pctg of the fcst area as drier westerly winds bringing in most stable air. Exception is around LoW where more humid air remains until early evening. One small shower trying to get going but the forcing is all into Ontario. Next fast moving upper wave will bring a few showers and t-storms Friday. && .SHORT TERM...(This evening through Friday) Issued at 403 PM CDT Thu Jul 18 2019 Convergence along surface trough axis centered along RRV may act as focus for isolated thunderstorm development through the early evening, with better upper forcing over Canada. Deep layer shear is in place, and there ans only been minimal destabilization due to earlier cloud cover. We are finally starting to see ML CAPE increase, so there is a window for isolated super cell development (considering strong effective shear). Better forcing arrives by Friday morning with a cold frontal passage and models show a little bit better signal (west to east progression). In our far south Friday NAM indicates potential for CAPE axis to linger and it is possible we could have stronger storms develop in our far southern counties, but this will be dependent on frontal position (front may be too far south). Temps will be a bit cooler Friday, but still not too far from seasonal normals (upper 70s to lower 80s). .LONG TERM...(Friday night through Thursday) Issued at 403 PM CDT Thu Jul 18 2019 Weather impacts during the upcoming extended forecast period are expected to be minimal, at best. A few storms exiting the southern forecast area during Sat aftn will lead to an anchoring of surface high pressure over central North Dakota. CAPE will be negligible under developing NW flow. The risk of a shower or tstm will exist west of the CWA, associated with some warm air advection along the western periphery of the high. The surface ridge will slide to the east very slowly during the day Monday on into Tuesday as pronounced Big Sky upper ridge acts to amplify the downstream NW flow over our area. Dry weather and seasonably warm temperatures will be featured right on through Wed. Next chance for pcpn will present on Thu, associated with approaching cold front trailing from central Canadian low pressure. && .AVIATION...(For the 00Z TAFS through 00Z Friday evening) Issued at 726 PM CDT Thu Jul 18 2019 VFR expected tonight into Friday. Friday clouds will be mid level based (mostly aoa 7000 ft agl). West winds becoming light overnight then light southwest to west Friday 10 kts or less. && .FGF WATCHES/WARNINGS/ADVISORIES... ND...None. MN...None. && UPDATE...Riddle SHORT TERM...DJR LONG TERM...WJB AVIATION...Riddle
Hazardous Weather Outlook National Weather Service Grand Forks ND 412 AM CDT Thu Jul 18 2019 NDZ006-007-014-015-024-190915- Towner-Cavalier-Benson-Ramsey-Eddy- 412 AM CDT Thu Jul 18 2019 This hazardous weather outlook is for portions of eastern North Dakota. .DAY ONE...Today and Tonight The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. MNZ001>009-013>017-022>024-027>032-040-NDZ008-016-026>030-038-039- 049-052>054-190915- West Polk-Norman-Clay-Kittson-Roseau-Lake Of The Woods- West Marshall-East Marshall-North Beltrami-Pennington-Red Lake- East Polk-North Clearwater-South Beltrami-Mahnomen- South Clearwater-Hubbard-West Becker-East Becker-Wilkin- West Otter Tail-East Otter Tail-Wadena-Grant-Pembina- Eastern Walsh County-Nelson-Grand Forks-Griggs-Steele-Traill- Barnes-Cass-Ransom-Sargent-Richland-Western Walsh County- 412 AM CDT Thu Jul 18 2019 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...Today and Tonight Scattered severe thunderstorms are possible from 2 pm to 8 pm today. The main hazards will be quarter sized hail and 60 mph wind gusts. Isolated tornadoes are also possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed today.
Special Weather Statement
National Weather Service Grand Forks ND
321 PM CDT Thu Jul 18 2019
MNZ006-182045-
Lake Of The Woods MN-
321 PM CDT Thu Jul 18 2019
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN LAKE OF THE WOODS
COUNTY UNTIL 345 PM CDT...
At 321 PM CDT, Doppler radar was tracking a strong thunderstorm near
Angle Inlet moving east at 35 mph.
Nickel size hail and winds in excess of 40 mph will be possible with
this storm.
This strong thunderstorm will be near...
Penasse around 330 PM CDT.
Oak Island, Garden Island State Recreation Area and Flag Island
around 335 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If on or near Lake of the Woods, get out of the water and move
indoors or inside a vehicle. Remember, lightning can strike out to
10 miles from the parent thunderstorm. If you can hear thunder, you
are close enough to be struck by lightning. Move to safe shelter
now! Do not be caught on the water in a thunderstorm.
Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.
&&
LAT...LON 4937 9513 4935 9507 4936 9501 4937 9499
4937 9495 4933 9486 4932 9481 4929 9482
4914 9478 4915 9515 4938 9515
TIME...MOT...LOC 2021Z 266DEG 32KT 4925 9505
CJThe Fargo/Grand Forks radar (KMVX), 223 km away, was scanning. The volume nearest the first event began at 01:00 UTC.
1 funnel cloud. Local standard time, as filed.
A thunderstorm with a wall cloud and intermittent funnel tracked east-northeast across Zippel Bay. Due to the high cloud base, the funnel was visible over a wide area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2019Every state in 2019This day in weather historyWarnings in Minnesota, July 2019
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 828560.