Area Forecast Discussion
Issued by NWS Milwaukee/Sullivan, WI
Issued by NWS Milwaukee/Sullivan, WI
090 FXUS63 KMKX 101434 AFDMKX Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 934 AM CDT Mon Jun 10 2024 .KEY MESSAGES... - There will be a chance for thunderstorms at times Tuesday evening through Thursday and again later this weekend into early next week. - Warmer and more humid conditions are likely mid-week && .UPDATE... Issued 934 AM CDT Mon Jun 10 2024 Very pleasant conditions are expected today, as high pressure moves into the region. Highs will range from the low 70s west to mid to upper 60s east. Boxell && .SHORT TERM... Issued 335 AM CDT Mon Jun 10 2024 Today through Tuesday: High pressure will gradually build in from the northwest today into tonight, with mostly clear skies expected. Winds will be lighter today as well, but will still be a bit breezy out of the north. Though plenty of sunshine is expected, a cooler airmass behind the departed trough/front will result in below normal high temps today. Coolest temps will be in the east due to onshore winds this afternoon. Lows tonight will be on the cool side, with 40s expected most places. Winds will become southerly Tuesday as the high departs to the east ahead of an approaching low pressure system. This will help temps to recover back towards normal values, though likely falling short by a couple/few degrees. Mostly sunny skies early in the day will give way to increasing clouds from the west as the trough approaches. Showers will be possible late afternoon and into the evening as the trough swings through. Kept shower chances on the lower end for now (up to 40%), as it will take time for deeper saturation to occur given the drier airmass in place early Tuesday. Could be a few rumbles of thunder as moisture and instability tick up a bit just ahead of the trough. DDV && .LONG TERM... Issued 335 AM CDT Mon Jun 10 2024 Wednesday through Sunday: The flow aloft will turn zonal mid-week, with even a slight hint at an upper level ridge sneaking into the area. This will allow for a warmer and more humid airmass to push into southern Wisconsin Wednesday into Thursday. At the surface, a weak area of high pressure will build in Wednesday behind departing low pressure, with mostly sunny skies likely. Still watching the potential for upstream showers and storms Wednesday to slide into the area Wednesday night. Some uncertainty remains with how much this activity will hold together by the time it gets here, so kept precip chances under 50 percent. Precip chances Thursday will depend on how quickly the any remaining showers/storms and clouds clear out of the area and also where the effective boundary will be by the afternoon hours. Latest deterministic model runs are all hinting that much of the activity Thursday may end up being south of the state line, but plenty of time for these finer details to change given we`re still a few days out. It looks mainly dry Friday and Saturday as surface high pressure builds back into the area behind the departing trough. Northwest flow aloft between the trough to the east and a ridge building in from the southwest will likely result in somewhat cooler temps for the end of the week, probably right around normal for mid-June. Warmer temps are then expected to return Sunday as the upper ridge builds into the area. May also see a return of shower/storm chances as a shortwave moves through the top of the ridge. DDV && .AVIATION... Issued 934 AM CDT Mon Jun 10 2024 VFR conditions are expected today, with mostly clear skies and light north winds this morning becoming light and variable this afternoon. A lake breeze will likely turn winds easterly to northeasterly at the terminals near Lake Michigan. Boxell && .MARINE... Issued 335 AM CDT Mon Jun 10 2024 Breezy northerly winds this morning will gradually become lighter later today into tonight as high pressure builds in from the northwest. Winds will become southerly on Tuesday as the high moves eastward ahead of an approaching trough of low pressure. South to southwest winds will then hang on through at least Wednesday, eventually becoming northerly by the end of the week behind a trough and ahead of an approaching area of high pressure. DDV && .MKX WATCHES/WARNINGS/ADVISORIES... WI...None. LM...None. && $$ Visit us at weather.gov/milwaukee Follow us on Facebook, Twitter, and YouTube at: www.facebook.com/NWSMilwaukee www.twitter.com/NWSMilwaukee www.youtube.com/NWSMilwaukee