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
-730 PM Update: Added drizzle in across the forecast area based on forecast soundings ahead of the more stratiform rain tonight, and increased to areas of fog throughout the CWA as the low level inversion holds strong.
KEY MESSAGES
1) Below freezing temperatures return Sunday night through the middle of the week. Snow showers with light accumulation is possible Sunday night.
2) Locally dense fog is possible along the Downeast Coast late tonight into Thursday morning.
DISCUSSION
KEY MESSAGE 1...Below freezing temperatures return Sunday night through the middle of the week. Snow showers with light accumulation is possible Sunday night.
KEY MESSAGE 1 DESCRIPTION... A large low pressure system developing in the northern Great Plain is expected to track towards the Great Lakes Saturday, then move into Canada Sunday. The associated cold front is expected to sweep through the region Sunday. Sunday morning should begin with rain and continue through the afternoon. The cold front should exit the area by early Sunday night, switching winds to NW flow. Ample cold air advection is expected to drop temps to below freezing after midnight on Sunday night. This should switch any remain precip to snow. By Monday, temps will increase in the south, switching snow back to rain, but snow should remain in the north. Cold temps should remain to the middle of the week.
KEY MESSAGE 2...Locally dense fog is possible along the Downeast Coast late tonight into Thursday morning.
KEY MESSAGE 2 DESCRIPTION... Moist air mass remains in place overnight through Thursday. This will result in the possibility of some locally dense fog developing late tonight into Thursday morning.
AVIATION /00Z THURSDAY THROUGH MONDAY/
Tonight...IFR/LIFR in low ceilings, patchy fog, drizzle, and scattered showers. Winds light and variable.
Thursday through Thursday night...IFR/LIFR in low ceilings and scattered showers. Improvement to MVFR possible KBGR/KBHB for a brief period Thursday afternoon. Light SE wind.
Friday...AM IFR/LIFR due to RA/FG becoming MVFR during the day with VFR possible late day. N-NE winds around 5kt. Fri night expecting possible BR/FG and VCSH especially at southern terms. NE winds 5kt or less.
Saturday...VFR. MVFR cigs possible especially at BGR and BHB. SE winds 5-15kt.
Sunday...MVFR/IFR with RA likely. S winds 10-15kt gusting to 20kt shifting SW late day.
Monday...VFR. NW winds 5-15 kts.
MARINE
Winds/seas remain below SCA levels through Thursday night. Visibility will fall to 1 NM or less at times tonight through Thursday morning in fog.
Winds/seas expected to remain below SCA conditions through Sunday. Late Sunday night into Monday is the next chance of SCA winds/seas. Rain/fog may reduce vsby Friday then again on Sunday.
CAR WATCHES/WARNINGS/ADVISORIES
ME...None. MARINE...None.
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