Area Forecast Discussion
Issued by NWS Portland, ME

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709 FXUS61 KGYX 011655 AAB AFDGYX Area Forecast Discussion...UPDATED National Weather Service Gray ME 1255 PM EDT Sat Jun 1 2024 .SYNOPSIS... High pressure over the Great Lakes will settle off the east coast bringing and extended stretch of dry weather to the region with temperatures gradually warming through the weekend. Cooling seabreezes will form on the coast today through at least Monday. The first half of next week is expected to continue the dry and mild stretch with unsettled weather possibly to return late next week. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... 1020 AM Update...Other than matching near term temperature/dewpoint/cloud cover (or lack thereof!) trends...little changes to the forecast this morning as 12Z GYX RAOB shows deep residual layer that we/re mixing back into with temperatures quickly moving into the 70s across the south. Rather dry in the sounding as well...with CU rule suggesting very little in the way of flat cu development...mainly over western Maine for the day today. No other changes at this time. 6 AM Update...No changes to the going forecast. We are on track for a beautiful morning weatherwise. Previously... High pressure gradually builds overhead this weekend while weak low pressure continues to spin over the Maritimes. This will continue to the northerly or northwesterly flow regime with warm temperatures with wind gusts 15 to 20 MPH. A late day seabreeze is expected on the coast which will make it feel quite chilly/cold there by 00z this evening. Otherwise, dry weather is expected under mostly sunny skies. Beach hazard statement continues for sunny/mild/breezy conditions with ocean temperatures still in the 50s. Fully expect these headlines will be necessary through the weekend given continued dry and mild conditions. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SUNDAY/... No changes with the forecast for tonight. Mostly clear skies expected with deep layer ridging moving overhead. Went with a blend of MOS products for lows tonight as radiational cooling will likely be quite good, especially across northern NH. However, the air mass has modified enough that frost development should not occur. Another fair and warm day expected on Sunday with highs around 80 except on the immediate coast where a seabreeze will likely form and make it chilly by late in the afternoon. && .LONG TERM /SUNDAY NIGHT THROUGH SATURDAY/... A rather quiet weather pattern continues in the long term. An upper level ridge will shield the area from any significant precipitation through most of next week. In the dailies: An area of mid and upper level clouds may cross the area Monday with spot showers possible in the north. Behind this the east coast ridge builds back north and should dominate the weather through midweek. Can`t rule out some scattered diurnal shower activity mainly over the mountains and foothills but most of the time conditions should remain dry. A cutoff low over southern Canada just north of the Great Lakes will have a hard time making eastward progress. A cold front pivoting around this system will approach Thursday and Friday increasing the chances of showers and possibly a few thunderstorms. The GFS is more aggressive than the ECMWF with this frontal feature. Given that we are in a rather blocky pattern, would favor a littler slower progression with this system so will go under GFS POPS and trend a little closer the the ECMWF. Have added patchy marine fog each night Monday Night through Wednesday Night. Temperatures will be on the warm side reaching somewhat above normal values ranging from the upper 70`s to mid 80`s Monday and mid 70`s to low 80`s Tuesday through Friday. Expect afternoon seabreezes to cool the immediate coastal areas and islands. Low temperatures will generally be in 50`s. && .AVIATION /18Z SATURDAY THROUGH THURSDAY/...
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Short Term... Summary: High pressure building overhead today will remain across the region through Sunday night with mostly clear skies and northwest winds /sea breezes at the coast/ weakening through Sunday. Restrictions: VFR conditions are expected to dominate the period through Sunday night. Winds: Northwesterly winds 10G15kts inland with sea breezes along the coast with winds going calm/light-variable tonight. West- southwest winds 5-10kts for the day on Sunday with sea-breezes again developing at all coastal terminals. LLWS: LLWS is note expected through Sunday night. Lightning: Lightning is not expected through Sunday night. Long Term... Generally Expect VFR to MVFR throughout the Monday-Wed period.
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&& .MARINE... Short Term...With high pressure west of the region northwesterly winds of 10-15kts are expected to continue through the period with nearshore gusts 20kts at times. Winds will go onshore this afternoon and Sunday afternoon as a seabreeze develops each day. Long Term...Wind and waves to remain below SCA conditions through the extended forecast period. Patchy fog mainly at night starting Monday Night. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...Beach Hazards Statement until 8 PM EDT this evening for MEZ023>028. NH...Beach Hazards Statement until 8 PM EDT this evening for NHZ014. MARINE...None. && $$ AVIATION...Arnott