textproduct: Caribou

WHAT HAS CHANGED

Update for 12z aviation discussion.

KEY MESSAGES

1) Below normal temperatures are expected from Thursday through early next week.

DISCUSSION

KEY MESSAGE 1... Below normal temperatures are expected from Thursday through early next week.

KEY MESSAGE 2 DESCRIPTION... The region id under NW-NNW flow aloft as a closed upper low exits slowly to the east on Thursday. This will continue to usher in cool air from Canada with highs from 10-15 degrees below normal, with the largest departures across the North. There could also be some isolated to scattered showers, mainly across Eastern Maine, with the best chance near the Maine-Canada border.

A compact upper level low looks to dive down from Canada through western New England Friday night. At this time it appears the best chance for any rain will be in the Central Highlands down toward MDI late Friday night into Saturday. Airmass over the northeast looks to remain dry enough Friday night and Saturday with little measurable rainfall expected. However, cloudy skies will be present Friday and Saturday leading to well below normal temps over the weekend and into early next week.

AVIATION /12Z WEDNESDAY THROUGH SUNDAY/

Today...IFR, potential LIFR at Aroostook terminals the first hour or two of TAF valid time, especially at KFVE. Gradually improvement to MVFR this afternoon at KCAR, KPQI and KHUL. BGR and BHB will see VFR today. NW winds 5-15kts gusting to 20kts this afternoon.

Tonight...Aroostook terminals become IFR this evening while Downeast terminals drop to MVFR. Light n winds.

Thursday...VFR, with exception of brief period of MVFR possible in any showers. N winds 5-15 kts with gusts 20kts possible in the afternoon.

Thursday night-Friday...Mainly VFR Downeast terminals with VFR/MVFR Aroostook terminals with showers possible. NNE winds 5-10kts.

Friday night-Saturday...MVFR, possible IFR, Downeast terminals in rain. NE winds 5-15kts gusts to 20kts Saturday.

Saturday night-Sunday...VFR/MVFR with showers possible. NNE winds 5- 10kts.

MARINE

Sub-SCA conditions are likely on the coastal waters through Thursday, though some isolated gusts to 25kt cannot be completely ruled out this afternoon and Thursday afternoon. The outer waters should see winds 20 kt or less and seas 5 ft or less through Thursday.

Winds and seas will remain below small craft levels through Friday. Easterly winds increase to aoa 25kts Saturday morning with gales possible for waters 25-60 NM Saturday morning into early afternoon. Seas increase above 5 ft Saturday afternoon for the coastal waters out to 25 NM, remaining elevated into Sunday morning.

CAR WATCHES/WARNINGS/ADVISORIES

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