textproduct: Caribou

WHAT HAS CHANGED

- No significant changes.

KEY MESSAGES

1) Wildfire smoke might be able to mix down to the surface over the north Friday.

2) A chance of thunderstorms this afternoon/evening central/Downeast areas. Isolated thunderstorms central/Downeast areas Friday.

3) Temperatures increase early next week before the next system approaches mid week.

DISCUSSION

KEY MESSAGE 1...Wildfire smoke might be able to mix down to the surface over the north Friday.

KEY MESSAGE 1 DESCRIPTION... A cold front will cross the region Friday. Mixing in the wake of the cold front could allow smoke to reach the surface across northern areas.

KEY MESSAGE 2...A chance of thunderstorms this afternoon/evening central/Downeast areas. Isolated thunderstorms central/Downeast areas Friday.

KEY MESSAGE 2 DESCRIPTION... An initial cold front/pre-frontal trof will stall across central portions of the forecast area this afternoon. Scattered showers/thunderstorms are possible to the south of the stalled boundary, across central/Downeast portions of the forecast area this afternoon through early tonight. Low pressure will cross the region tonight into Friday, drawing the cold front southward. Isolated afternoon thunderstorms are possible across central/Downeast portions of the forecast area Friday dependent on how rapidly the front moves south.

KEY MESSAGE 3...Temperatures increase early next week before the next system approaches mid week.

KEY MESSAGE 3 DESCRIPTION... High pressure builds in behind the departing front this weekend, bringing seasonable temperatures and clear skies. A ridge begins to move into the area on Sunday, increasing temperatures for the first part of the week. Temperatures are expected to be about 5-10 degrees above average through mid week but with only modest humidity. The hottest day is currently expected to be Tuesday where temperatures may reach 90. Another trough approaches mid week which could bring some showers and thunderstorms starting in the north late Monday.

AVIATION /19Z THURSDAY THROUGH TUESDAY/

Rest of this afternoon...Occasional MVFR across central/Downeast areas with scattered showers and thunderstorms. Otherwise, VFR. Variable winds 5 to 10 knots.

Tonight...VFR/MVFR. Occasional IFR late. Variable conditions with any patchy fog overnight. Showers. Isolated/scattered thunderstorms through early morning. Light and variable winds.

Friday...Variable conditions with any patchy fog early. Isolated/scattered showers and thunderstorms, mostly across central/Downeast areas. Occasional IFR early. Otherwise, VFR/MVFR. Northwest/north winds 10 to 15 knots.

Friday night...Variable conditions with any patchy fog late. Otherwise, VFR. Northwest/north winds 5 to 10 knots.

Saturday...VFR. NW wind 5-10 kts, gusts to 20 kt. An afternoon sea breeze could produce S winds 5-10 kt at BHB.

Saturday Night-Sunday...VFR. N-NW winds around 5kt. An afternoon sea breeze could produce S winds 5-10 kt at BHB.

Sunday Night...VFR. Light and variable winds.

Monday-Monday Night...VFR except possible MVFR in any showers/tstms at northern terminals late. SW winds 5 to 15 kts.

Tuesday...VFR except for possible MVFR in any showers/tstms at northern terminals in the afternoon. W/SW winds 10 to 15 kts.

MARINE

Winds/seas below small craft advisory levels tonight through Friday night. Scattered/numerous showers tonight. Isolated/scattered thunderstorms through early morning. Scattered showers Friday. Patchy fog later tonight into Friday night.

Winds and seas below small craft criteria Saturday through Monday. Marginal SCA winds and seas on the coastal and outer waters Monday night and on all waters Tuesday.

CAR WATCHES/WARNINGS/ADVISORIES

ME...None. MARINE...None.