


Area Forecast Discussion
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
188 FXUS61 KCAR 301827 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 227 PM EDT Wed Jul 30 2025 .SYNOPSIS... A cold front will cross the area today into this evening. High pressure will build in from the west Thursday into Friday then slide south of the region Saturday into Sunday. && .NEAR TERM /THROUGH THURSDAY NIGHT/... The cold front continues to move across the area today, currently crossing the Central Highlands. This is not a well- defined front, with temps and dewpoints dropping more gradually behind the front. Thunderstorms are developing along the front and will continue to develop through the evening hours. This will be the best chance for any strong to severe storms. Plenty of 0 to 6km bulk shear is available, but CAPE values are lacking except along the southern side of the front, where sun has had a chance to preheat the atmophere. So far thunderstorms have been a little pulsey, but are developing a little stronger as they move eastward into the areas of greater CAPE. Little rotation has been seen on radar but with strong winds aloft the capacity for gusty winds at the surface with any storms still exists, especially if the storms can maximize the available instability. This concern will last through the evening, but by mid-evening CAPES will drop off again and showers should slowly weaken as the front moves south. Weather behind the front will be drier and noticeably cooler, with highs only reaching into the 70s tomorrow during the day. The stalled front offshore will keep weather over the land fairly calm for northern Maine. Eventually, the progressing trough will push some showers northward over the Downeast coast. These may be fairly limited depending on how strong the surface high builds in ahead of time. The upshot is that Thursday and Thursday night look to be cool and quiet, with some possible showers late Thursday night for Downeast. && .SHORT TERM /FRIDAY THROUGH SATURDAY/... Looking generally dry Friday through Saturday, with mid level W/NW flow and surface high pressure centered just S/W of us. Early Friday, can`t rule out a few leftover showers on the coast, but even that is just a small (20 percent) chance. Temperatures will be a bit cooler than average and the air will remain dry with low dewpoints. Models are in good agreement. && .LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... The pattern changes beginning Sunday and lasting into the middle of the week, with the flowing shifting from W/NW to W at mid- levels, allowing a warmer and somewhat moister airmass to be in place than what was present Friday/Saturday. This means chances of afternoon storms return Saturday, along with higher dewpoints. That said, don`t think any one day Sunday to Wednesday looks terribly unsettled, with 10-30 percent chances of afternoon showers/storms. Temperatures will be warmer than average with generally upper 70s to mid 80s. Some uncertainty with temperatures, but not anticipating anything warm enough for heat advisories or warnings. Dewpoints will be in the 50s to low 60s, which is slightly muggy, but not too uncomfortable. && .AVIATION /18Z WEDNESDAY THROUGH MONDAY/... NEAR TERM: Mainly VFR conditions expected this evening through tomorroow. Short periods of MVFR possible in the afternoon/evening in -SHRA for northern TAF sites, possible -TSRA in the evening for HUL/BGR. Light winds becoming NW 5 to 10 kts. SHORT TERM: Predominantly VFR through Tuesday with variable wind 10 kts or less. && .MARINE... NEAR TERM: Winds and seas expected to remain below SCA criteria through Thursday night. SHORT TERM: Winds and seas likely below small craft levels through Tuesday. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...None. MARINE...None. && $$ Near Term...LF Short Term...Foisy Long Term...Foisy Aviation...LF/Foisy Marine...LF/Foisy