002 FXUS63 KAPX 111044 AFDAPXArea Forecast Discussion National Weather Service Gaylord MI 644 AM EDT Thu Sep 11 2025
.KEY MESSAGES...
-High pressure will continue beautiful early fall weather today. Fog chances return tonight.
-Light scattered precipitation returns Friday night into Saturday morning with a few chances of embedded thunderstorms.
-Additional quiet and dry weather continues through midweek next week with highs well above average for mid September.
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.SHORT TERM /THROUGH FRIDAY/... Issued at 239 AM EDT Thu Sep 11 2025
Pattern Synopsis...Mid level heights begin to rise across the Northwoods today with a shortwave ridging pattern building across the midwest through the entire short term period. Surface high pressure will continue to support mainly clear skies and quiet weather today and tonight.
Forecast Details...
Today... Another beautiful fall day is expected as subsidence aloft will keep conditions sunny and dry. Temperatures continue to climb above normal for September as previously mentioned ridging builds warm H8 temps across the middle of the CONUS. Diurnal and adiabatic heating processes will increase daytime highs into the mid/upper 70s. Medium probabilities of a few localized areas near Manistee and Wexford counties observing highs in the low 80s as light northeast winds could potential deliver a slight downsloping effect boosting temperatures.
Tonight...Mostly clear skies across northern lower will allow temperatures to efficiently fall due to radiational cooling processes. With dew point depressions rapidly decreasing, inland fog is expected tonight mainly impacting northern lower. Some overnight lingering cloud cover across eastern upper along with areas near Lake Huron will have lesser probs of formation but remains possible as overnight lows drop to the upper 40s and low 50s.
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.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/... Issued at 239 AM EDT Thu Sep 11 2025
Friday and Saturday... Shortwave ridge building across the central US begins to move eastward this weekend with its axis positioning over the Midwest. Shortwave troughing over Hudson Bay will create a somewhat baroclinic zone over the Great Lakes region combined with some low level moisture and instability to keep chances of showers and even a few storms in the forecast. Timing of precipitation will likely be Friday night into Saturday morning. Dynamics are not ideal with this set up; leading to overall light and uneven QPF coverage across the CWA. A few convective cells could deliver locally higher amounts but highest probabilities of rainfall remain between a general trace to a tenth of an inch.
Sunday through Wednesday Outlook.... Midlevel ridging regime builds across the Great Lakes region this Sunday through the remainder of the forecast period... continuing the pattern of surface high pressure and quiet weather. Biggest weather feature that will be noticed by the general public with be the stretch of warm weather thanks to 850mb temperatures building into the general 15-18 degree range. Adiabatic heating processes will likely result in a stretch of daytime highs near 80 degrees Monday through Wednesday. Guidance is hinting at some low probabilities of precipitation due to embedded shortwaves/height disturbances likely to deliver convection to the plains region. At this time no precip is expected, but we will continue to monitor these potential sources of convection and how they evolve with future model runs.
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.AVIATION /12Z TAFS THROUGH 12Z FRIDAY/... Issued at 643 AM EDT Thu Sep 11 2025
IFR/LIFR cigs to scatter out to MVFR/VFR with improving vsbys through 15z. Expect most areas should go to VFR cigs this afternoon, though possible some areas hold around 2-3kft. Winds generally light (under 10kts) and variable with lake breeze development this afternoon; offshore land breezes tonight. Patchy dense fog expected again tonight and have hinted rather strongly at this in most TAFs...least confidence in fog tonight at PLN/CIU attm, similar to current conditions.
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.APX WATCHES/WARNINGS/ADVISORIES... MI...None. MARINE...None.
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SHORT TERM...SJC LONG TERM...SJC AVIATION...FEF
NWS APX Office Area Forecast Discussion