Area Forecast Discussion
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
082 FXUS61 KCAR 030105 AFDCAR Area Forecast Discussion National Weather Service Caribou ME 905 PM EDT Sun Jun 2 2024 .SYNOPSIS... A back door cold front approaches from the east overnight, then crosses the area from east to west on Monday, before dissipating Monday night. Weak high pressure then returns to the region through Tuesday night, before slowly drifting east Wednesday and Wednesday night. A complex storm system then slowly approaches from the west late in the week. && .NEAR TERM /THROUGH MONDAY/... 9:05 PM Update: A dry air mass in place this evening as can be seen on the 00z Caribou sounding. Moisture will rotate around an upper low east of Nova Scotia, and this will cause clouds to back into far eastern Maine Monday morning. It will remain mainly clear for the remainder of this evening and tonight across the area and temperatures will drop off fairly quickly, but it will not be nearly as cool as the past several nights. No significant changes are planned. Tonight... Not much change in the overall setup tonight, especially this evening, with mostly clear skies and light winds. Late in the night, the upper level high pressure drifts ever so slightly to the west and a vort max and weak backdoor cold front rotating around the quasi-stationary low off Nova Scotia approach from the east. This backdoor cold front could bring scattered showers to the Eastport area and increased clouds along the New Brunswick border very late tonight. But otherwise, looking like a quiet night with temperatures a bit warmer than last night. Monday... The above mentioned backdoor cold front progresses west across our area and weakens through the day. There isn`t much moisture to work with and went with just isolated showers across most of the area on Monday. Temperatures will be a bit cooler than Sunday especially in the east, with highs ranging from around 70 near the New Brunswick border to near 80 over the Western North Woods. More clouds than Sunday as well, with generally partly cloudy skies. && .SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY/... The region remains on the backside of a cutoff low over the southeastern Maritimes and the front side of a deep layered ridge to the west Monday night-Wednesday night. There should be some low level moisture around Monday night and Tuesday for some clouds to form with passing shortwaves going around the backside of the cutoff low. Lows Monday night should be a few degrees above normal and highs on Tuesday around 5 degrees above normal. The low levels should dry Tuesday night, allowing for the sky to become mostly clear to clear. Lows Tuesday night should be around 5 degrees above normal. A more vigorous shortwave passes on Wednesday, it also should be a little farther west than the shortwaves Monday night and Tuesday. As a result have a slight chance for some showers over portions of the North Woods and Central Highlands Wednesday afternoon. Temperatures should continue to be seasonably warm on Wednesday with highs around 10 degrees above normal, with many locations across the interior, except for higher elevations, being around the 80 degree mark. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... The models have come into slightly better agreement on their handling of a cutoff low tracking from South Central Canada Wednesday night to the vicinity of the eastern Great Lakes on Saturday. They then differ if that system goes to our north, south or over the region on Sunday. The result will be, after a dry Wednesday night, unsettled weather over the region Thursday- Sunday, with a chance of showers. Until the exact track/timing/strength of the cutoff low is better known, its to early to add in a chance of thunder. However, if the cold pool associated with the system goes over us, there could indeed be some rumbles of thunder. Temperatures should be above normal Wednesday night through at least Friday night. For now above normal Temperatures are forecast Saturday-Sunday as well, but temperatures could end up significantly cooler if the upper level cold pool goes over the region for the upcoming region. && .AVIATION /01Z MONDAY THROUGH FRIDAY/... NEAR TERM: Generally VFR through Monday. Wind becoming light and variable late this evening and overnight. NE wind 5-10 kts Monday. Only possible exception to VFR is MVFR cigs possibly moving into Washington County after 8z tonight and perhaps lingering until about 18z Monday. There is a chance (30%) that these MVFR ceilings could reach HUL as well between 12-18z Monday, but kept the 00Z Taf VFR for now given the low confidence. SHORT TERM: Monday night-Wednesday night...VFR. Thursday-Friday. Mainly VFR, with brief periods of MVFR possible in any showers. && .MARINE... NEAR TERM: Conditions well below small craft with no marine fog. SHORT TERM: A light pressure gradient over the waters Monday night through Friday should limit winds to 10 kt or less. Seas should be 2 ft or less through Wednesday night. Then gradually increasing swells could bring seas up to 4-5 ft by Friday. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...None. MARINE...None. && $$ Near Term...CB/Foisy Short Term...Maloit Long Term...Maloit Aviation...CB/Foisy/Maloit Marine...CB/Foisy/Maloit