A cold front moved through the region during the day and lead to isolated thunderstorms across northwest Wisconsin during the afternoon. A few of the storm were marginally severe with one storm knocking down power lines.
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 DLH wrote it up.
A cold front moved through the region during the day and lead to isolated thunderstorms across northwest Wisconsin during the afternoon. A few of the storm were marginally severe with one storm knocking down power lines.
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 Duluth, MN wrote its last area forecast discussion before the first event at Aug 7, 1:41 PM CST, 2 hours 57 minutes earlier.
Area Forecast Discussion National Weather Service Duluth MN 241 PM CDT Wed Aug 7 2019 .SHORT TERM...(This evening through Thursday night) Issued at 223 PM CDT Wed Aug 7 2019 A cold front is crossing through the forecast area this afternoon bringing scattered showers and thunderstorms. These storms will move into a more favorable environment for strong convection as they proceed into NW WI. Here the CAPE environment is expected to get better throughout the afternoon, but debris from convection upstream may limit the environment capabilities and potential destabilization. Meanwhile a better shear environment is advecting in towards that region, so overall expect some strong convection, but probably only isolated severe storms possible as shear profiles are not optimal for rotating storms. There is some potential to get the storms moving quickly with mean storm motions cruising at 35 to 40 knots, so if a storm can produce a small outflow it could be exacerbated by the storm's speed. The SPC has NW WI in a slight risk area for severe weather. The cold front will drift southeast tonight and the area will largely be void of shower activity into Thursday. A slow moving upper low will gradually make its way eastward and may spark some shower activity near the Canadian Border Thursday afternoon, but for now, have kept the mention out of the forecast due to low confidence in areal placement. Given the rainfall today, and light wind speeds overnight, fog is possible tonight, but should quickly erode as wind speeds are expected to increase Thursday as the pressure gradient tightens. .LONG TERM...(Friday through Wednesday) Issued at 223 PM CDT Wed Aug 7 2019 Northwest flow aloft will cover the forecast area on Friday while high pressure is in place over the surface through Friday evening. Late Friday night a mid level trof approaches from the west with an opportunity for some showers and storms moving into northeast Minnesota. Northwest Wisconsin should remain dry Friday night with the surface high nearby. Another sharper mid level trof moves through the region on Saturday accompanied by a robust vorticity maxima moving through on the fast northwest flow. Additional showers and storms are on tap Saturday. A cold front will move through the region Saturday night with more showers and storms possible in the vicinity of the front. The front will depart by late Saturday night allowing high pressure to cover the area on Sunday. Model differences show up Sunday night with the GFS/ECMWF keeping high pressure over the region, while the GEM brings in the next round of showers and storms late to the western third of the area. A blend with the previous forecast gives the low pops to the western area. Will have pops slowly ramp up for Monday through Tuesday as the models are trending toward a slow moving upper level short wave trof affecting the region. && .AVIATION...(For the 18Z TAFS through 18Z Thursday afternoon) Issued at 1250 PM CDT Wed Aug 7 2019 Mainly VFR conditions prevail through the period as a cold front passes through the region today. Showers and storms form ahead of the frontal boundary mainly affecting HIB, DLH, and HYR. Thunderstorms are possible over HYR this afternoon. Storms could cause brief drops into MVFR/IFR conditions. Otherwise, mostly to partly cloudy skies today with gusty northwest winds. Tonight, skies clear from west to east and winds weaken. Gusty winds redevelop tomorrow afternoon. && .MARINE... Issued at 223 PM CDT Wed Aug 7 2019 A cold front will move past the south shore of Lake Superior this afternoon with showers and a few thunderstorms. Some of the storms may be strong to severe with damaging wind gusts, large hail, and heavy rain the hazards. High pressure results in quiet weather tonight through Thursday night. A northwest wind is forecast, with some gusts to 20 knots possible, Thursday and Thursday evening before subsiding. Waves will be less than 3 feet. && .PRELIMINARY POINT TEMPS/POPS... DLH 51 73 50 77 / 0 0 0 0 INL 50 70 49 76 / 0 0 0 0 BRD 53 75 51 79 / 0 0 0 0 HYR 50 75 49 77 / 20 0 0 0 ASX 54 76 53 79 / 20 0 0 0 && .DLH WATCHES/WARNINGS/ADVISORIES... WI...None. MN...None. LS...None. && SHORT TERM...Wolfe LONG TERM...GSF AVIATION...KC MARINE...GSF
Hazardous Weather Outlook National Weather Service Duluth MN 245 PM CDT Wed Aug 7 2019 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-081945- Koochiching-North St. Louis-Northern Cook/Northern Lake- North Itasca-Central St. Louis-Southern Lake/North Shore- Southern Cook/North Shore-North Cass-South Itasca-South Cass- Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis- Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price- 245 PM CDT Wed Aug 7 2019 This Hazardous Weather Outlook is for portions of northeast Minnesota and northwest Wisconsin. .DAY ONE...This afternoon and Tonight Scattered thunderstorms will cross the area this afternoon as a cold front crosses. Some of these storms may be strong to severe especially over northwest Wisconsin. Damaging winds and large hail are the main threats. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday There will be periodic chances of thunderstorms Friday night through Saturday night, then late Sunday night through Tuesday. .SPOTTER INFORMATION STATEMENT... Skywarn spotters are encouraged to report hail of any size and rainfall amounts to the National Weather Service. LSZ121-140>148-081945- Bayfield to Oak Point WI-Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- 245 PM CDT Wed Aug 7 2019 This Hazardous Weather Outlook is for portions of the Nearshore waters of western Lake Superior. .DAY ONE...This afternoon and Tonight A few thunderstorms will affect the near shore waters this afternoon. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday There will be periodic chance of thunderstorms late Friday night through Saturday night, then Monday through Tuesday. GSF/Wolfe More information may be obtained at the following web address: http://www.weather.gov/duluth (all lower case)
Special Weather Statement
National Weather Service Duluth MN
422 PM CDT Wed Aug 7 2019
WIZ008-009-072145-
Price-Sawyer-
422 PM CDT Wed Aug 7 2019
...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT PRICE AND SOUTHEASTERN
SAWYER COUNTIES...
At 422 PM CDT, an area of strong thunderstorms was 12 miles northwest
of Hawkins, or 18 miles northeast of Ladysmith, moving southeast at
35 mph.
Wind gusts up to 40 mph, half inch hail, and occasional cloud to
ground lightning can be expected with these storms.
Locations impacted include...
Phillips, Prentice, Catawba, Kennan, Connors Lake, Cranberry Lake,
and Wilson Lake Near Phillips.
Seek shelter inside a sturdy building and away from windows until
these storms pass. Get off area lakes and seek shelter on shore in a
sturdy shelter or a hard topped vehicle.
LAT...LON 4564 9068 4564 9109 4565 9111 4593 9062
4564 9011 4538 9050 4538 9068
TIME...MOT...LOC 2122Z 308DEG 29KT 4567 9085
LESpecial Weather Statement
National Weather Service Duluth MN
434 PM CDT Wed Aug 7 2019
WIZ004-009-072200-
Price-Iron-
434 PM CDT Wed Aug 7 2019
...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN IRON AND
NORTHEASTERN PRICE COUNTIES...
At 433 PM CDT, a strong thunderstorm was 7 miles east of Fifield, or
10 miles southeast of Park Falls, moving southeast at 35 mph.
Another storm was near Big Pine Lake, also moving southeast at 35
mph.
Wind gusts up to 30 mph, half inch hail, and occasional cloud to
ground lightning can be expected with these storms.
Locations impacted include...
Turtle Flambeau Flowage, Fifield, Pike Lake, and Musser Lake.
Seek shelter inside a sturdy building and away from windows until
this storm passes. Get off area lakes and seek shelter on shore in a
sturdy shelter or a hard topped vehicle.
LAT...LON 4598 9004 4560 9005 4585 9049 4612 9010
4608 8993 4599 8993
TIME...MOT...LOC 2133Z 298DEG 32KT 4585 9026
LEPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
440 PM CDT WED AUG 7 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0430 PM HAIL 1 SE SPRINGSTEAD 46.02N 90.12W
08/07/2019 E0.25 INCH IRON WI PUBLIC
REPORT FROM SPRINGSTEAD LAKE LODGE.
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
448 PM CDT WED AUG 7 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0438 PM HAIL 1 NNE SPRINGSTEAD 46.04N 90.13W
08/07/2019 E0.25 INCH IRON WI PUBLIC
REPORT FROM BIRCHES RESORT.
&&Special Weather Statement
National Weather Service Duluth MN
449 PM CDT Wed Aug 7 2019
WIZ009-072215-
Price-
449 PM CDT Wed Aug 7 2019
...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN PRICE COUNTY...
At 449 PM CDT, a strong thunderstorm was over Phillips, or 19 miles
south of Park Falls, moving southeast at 30 mph.
Wind gusts up to 30 mph, half inch hail, heavy downpours, and
occasional cloud to ground lightning can be expected with this storm.
Locations impacted include...
Phillips, Ogema, Prentice, Spirit, Catawba, Kennan, Brantwood,
Cranberry Lake, Clifford, and Wilson Lake Near Phillips.
Seek shelter inside a sturdy building and away from windows until
this storm passes. Get off area lakes and seek shelter on shore in a
sturdy shelter or a hard topped vehicle.
LAT...LON 4552 9068 4558 9068 4578 9042 4561 9004
4546 9004 4538 9013 4538 9045
TIME...MOT...LOC 2148Z 304DEG 28KT 4566 9042
LESpecial Weather Statement National Weather Service Duluth MN 528 PM CDT Wed Aug 7 2019 WIZ002-003-008-072300- Bayfield-Ashland-Sawyer- 528 PM CDT Wed Aug 7 2019 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN BAYFIELD... SOUTHWESTERN ASHLAND AND NORTH CENTRAL SAWYER COUNTIES... At 527 PM CDT, a strong thunderstorm was near Cable, or 19 miles northeast of Hayward, moving southeast at 30 mph. Wind gusts up to 30 mph, pea size hail, heavy downpours, and occasional cloud to ground lightning can be expected with this storm. Locations impacted include... Cable, Drummond, Clam Lake, Namekagon Lake, Namekagon, Spider Lake, Lost Land Lake, Teal Lake, Ghost Lake, Moose Lake Sawyer County, Lake Owen, Day Lake, Totagatic Lake, Grand View, and Middle Eau Claire Lake. Seek shelter inside a sturdy building and away from windows until this storm passes. Get off area lakes and seek shelter on shore in a sturdy shelter or a hard topped vehicle. LAT...LON 4627 9155 4642 9125 4619 9069 4594 9105 TIME...MOT...LOC 2227Z 304DEG 27KT 4626 9128 LE
The Duluth radar (KDLH), 103 km away, was scanning. The volume nearest the first event began at 22:38 UTC.
2 thunderstorm wind. Local standard time, as filed.
Power lines were downed by the storm.
Power lines were downed by the storm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2019Every state in 2019This day in weather historyWarnings in Wisconsin, August 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: 850958, 850959.