textproduct: Caribou
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
WHAT HAS CHANGED
- Updated aviation discussion.
KEY MESSAGES
1) Potential for patchy frost Saturday night and Monday night across the north.
DISCUSSION
KEY MESSAGE 1...Potential for patchy frost Saturday night and Monday night across the north.
KEY MESSAGE 1 DESCRIPTION... High pressure will be building in this evening from Canada. Movement of the high will determine how low temps can drop Saturday night into Sunday morning. Confidence in frost potential has decreased due to ensemble models pointing to a thicker cloud deck much earlier in the evening. Upper air model soundings indicate the weak winds at the surface with lower surface dewpoints. Thus, lower RH values which should keep frost potential low. Due to the uncertainty, kept frost in the forecast for consistency.
Cold front moves through Monday with high pressure building in rapidly behind. This should allow winds over the valleys to decouple under clear skies over the north. Only caveat to frost formation will be fairly dry dewpoints expected with Canadian high.
AVIATION /12Z SATURDAY THROUGH WEDNESDAY/
Today...VFR. Across northern areas, northwest winds 10 to 15 knots with gusts up to around 20 knots. Across Downeast areas, northwest winds around 10 knots.
Tonight...VFR. Light and variable winds, becoming south/southeast around 5 knots.
Sunday...VFR/MVFR in rain showers at Downeast terminals. S winds between 5 to 10kts, gusting to near 20kts Downeast.
Sunday night...Mainly VFR, though may see MVFR/IFR in patchy fog and showers late. Light SSW winds becoming NW 5kts late.
Monday-Tuesday night...VFR. NW 5-10kts gusting to 15-20kts each afternoon.
Wednesday...VFR. Light ENE winds.
MARINE
Seas will remain below 5ft across all waters through Wednesday. NW winds will diminish today turning SSW on Saturday afternoon. Rain showers moving in late Sunday evening.
Winds remain below 25kts Sunday night before N wind gusts increase from 20-25kts over waters 25-60NM Monday morning into Tuesday afternoon. Seas range between 2-4 ft through Tuesday night, approaching 5 ft Wed morning over 25-60NM waters. Visibilities may be reduced in fog Sunday night.
CAR WATCHES/WARNINGS/ADVISORIES
ME...None. MARINE...None.
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