Elevated lake levels on Lake Michigan caused some isolated flooded areas near the lake on an ongoing basis.
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 GRB wrote it up.
Elevated lake levels on Lake Michigan caused some isolated flooded areas near the lake on an ongoing basis.
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 Green Bay, WI wrote its last area forecast discussion before the first event at Aug 31, 9:34 PM CST, 2 hours 26 minutes earlier.
Area Forecast Discussion National Weather Service Green Bay WI 1034 PM CDT Sat Aug 31 2019 Updated aviation portion for 06Z TAF issuance .SHORT TERM...Tonight and Sunday Issued at 255 PM CDT Sat Aug 31 2019 Mid and high clouds covered the forecast area this afternoon and temperatures were in the mid 60s to lower 70s at 19Z. Radar was showing some echoes moving into the area from the west but a dry layer between 6 kft and 12 kft, as seen on the 18Z KGRB sounding, should keep any of this from reaching the surface. Cloud-cover should keep fog from developing overnight and temperatures will be much warmer than they were this morning. Expect an increase in moisture tonight and Sunday in southerly flow around high pressure to the east of Wisconsin. Isentropic lift from warm advection, an inverted surface trough, and some mid level short wave energy will bring a chance for showers to southern Wisconsin. Have only included some slight chance POPs in the southeast part of the forecast area to account for this. Would not be too surprised if POPs need to be increased and/or expanded. Clouds will at least partially counteract the warm advection, allowing for highs in the upper 60s to mid 70s on Sunday. .LONG TERM...Sunday Night Through Saturday Issued at 255 PM CDT Sat Aug 31 2019 The main focus in the extended portion of the forecast will be the chances for showers and thunderstorms Monday night into Tuesday and the potential for these storms to become strong to severe. Sunday night into Monday: A weak surface trough is expected to stretch southwest from Ontario into the western U.P. and northwest WI. Aloft, a weak/subtle shortwave is expected to slide through the area overnight, along the southern edged of general mid-level troughing. Weak forcing along the trough, along with lingering moisture and upper-level support from the shortwave, will lead to isolated rain showers across mainly north-central Wisconsin. While the shortwave passes off to the east of the area, the aforementioned weak surface trough linger nearby and become nearly stationary across the area. This may allow for additional, isolated afternoon showers and thunderstorms, with the best chance remaining across the north-central and far northeast WI. Overnight lows are forecast to be in the mid 50s to around 60. High temperatures Monday are expected to be in the mid to upper 70s. Monday night through Tuesday: A surface low is expected to eject into the northern Plains, from the northern Rockies Monday night, before lifting northeastward into northern MN by Tuesday morning. Ahead of the surface low, a warm front is forecast to lift northeastward, reaching western Lake Superior by 18Z Tuesday. This will be roughly around the time that a stronger shortwave approaches from the west. Ahead of these features and cold front, sliding through the area by late morning or early afternoon, moist air is expected to quick advance north and northeastward. This will largely be on a 40 to 50 kt southwesterly LLJ. Instability values are progged to jump up close to around 2000 J/kg behind the warm front and ahead of the approaching cold front. Deep-layer shear is expected to increase to 35 to 45 kts along and ahead of the front, with a large portion of this being perpendicular to the line of forcing. Broad scale forcing would likely increase during the afternoon hours as the area would be in the right-entrance region of an upper-level jet. If the timing of the front is correct, the potential for severe weather would be increasing for late Tuesday morning into Tuesday afternoon. Current thinking is that the main threats from any storms would be damaging winds as bowing line segments would be possible, although some hail is possible along the warm front. Heavy rain is expected under any of the thunderstorms as well as precipitable water values jump to or around 1.5 to 2.0 inches. This may lead to localized urban flooding in poor drainage areas. As winds become west and northwesterly behind the cold front, afternoon and evening winds may gust as high as 25 to 35 mph outside of any thunderstorms. Will have to monitor this system closely as confidence in storm potential increases. Rest of the extended: Dry Canadian high pressure will build across the area and remain in place Tuesday evening through Friday morning, allowing for a break in the precipitation along with cooler, more fall-like air to move in. The next chance of rainfall will be Friday afternoon as the next low pressure system and cold front moves through the area. This will also begin to usher in another round of below normal temperatures into next weekend. && .AVIATION...for 06Z TAF Issuance Issued at 1033 PM CDT Sat Aug 31 2019 Generally good flight conditions are expected through tomorrow evening as an anticyclone slowly departs the area to the east. Middle clouds will stream across the area from time to time, but dry air at low-levels should limit precipitation to just a chance of sprinkles, which still did not seem worthy of inclusion in the TAFs. && .GRB WATCHES/WARNINGS/ADVISORIES... NONE. && SHORT TERM.....MG LONG TERM......Cooley AVIATION.......Skowronski
Hazardous Weather Outlook National Weather Service Green Bay WI 238 PM CDT Sat Aug 31 2019 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-011945- Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano- Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago- Calumet-Manitowoc-Southern Marinette County- Southern Oconto County- 238 PM CDT Sat Aug 31 2019 This Hazardous Weather Outlook is for north-central and northeast Wisconsin. .DAY ONE...Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Saturday There is a good chance of thunderstorms Monday night into Tuesday. Some of these storms may be strong to severe late Tuesday morning into Tuesday afternoon, with damaging winds and heavy rainfall being the main threats. West to northwest winds may gust as high as 35 mph Tuesday afternoon into Tuesday evening after a cold front passes through the area. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed tonight. LMZ521-522-541>543-011945- The Bay of Green Bay south of a line from Cedar River MI to Rock Island Passage-Lake Michigan from Washington Island to Sheboygan- 238 PM CDT Sat Aug 31 2019 This Hazardous Weather Outlook is for portions of northwest Lake Michigan and the waters of Green Bay. .DAY ONE...Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Saturday There is a good chance of thunderstorms late Monday night through Tuesday. Any storms would pose a hazard to mariners. Southwest winds will gust to 30 knots on Tuesday, then veer to the northwest Tuesday night. A few gale force gusts are possible. MG/Cooley
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
North Bayshore Road was often under water due to high lake levels.
Areas around the Kewaunee Marina were often under water due to high lake levels.
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, September 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: 856157, 856167.