Monday, March1, 2021
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Marine Weather and Tides
Wiscasset, ME

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:14AMSunset 5:29PM Monday March 1, 2021 4:55 PM EST (21:55 UTC) Moonrise 9:26PMMoonset 8:46AM Illumination 89% Phase: Waning Gibbous; Moon at 18 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ152 Coastal Waters From Port Clyde, Me To Cape Elizabeth, Me Out 25 Nm- 313 Pm Est Mon Mar 1 2021
.storm warning in effect from midnight est tonight through Tuesday afternoon...
.heavy freezing spray warning in effect from 2 am est Tuesday through Tuesday afternoon...
Tonight..NW winds 20 to 30 kt, increasing to 30 to 40 kt after midnight. Seas 6 to 9 ft, building to 8 to 11 ft after midnight. Moderate freezing spray after midnight.
Tue..NW winds 30 to 40 kt with gusts up to 50 kt. Seas 9 to 12 ft. Moderate freezing spray.
Tue night..W winds 20 to 30 kt with gusts up to 40 kt, diminishing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 6 to 9 ft, subsiding to 4 to 7 ft after midnight. Light freezing spray.
Wed..W winds 10 to 20 kt. Gusts up to 30 kt in the morning. Seas 3 to 5 ft, subsiding to 2 to 3 ft in the afternoon.
Wed night..NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft.
Thu..NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft.
Thu night..NW winds 15 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft.
Fri..NW winds 15 to 20 kt. Seas 2 to 3 ft.
Fri night..NW winds 15 to 20 kt. Seas 2 to 4 ft.
Sat..W winds 15 to 20 kt. Seas 2 to 4 ft.
Sat night..NW winds 10 to 20 kt. Seas 2 to 4 ft.
ANZ100 313 Pm Est Mon Mar 1 2021
Synopsis for stonington me to merrimack river ma out to 25 nm.. An arctic cold front will cross the waters tonight with heavy snow showers possible along it. Storm force gusts are expected on the outer waters tonight and Tuesday, with gale force gusts in the bays. In addition to the snow and winds, moderate to heavy freezing spray is also possible as the coldest air settles over the waters Tuesday morning. High pressure will bring more tranquil conditions by midweek, although occasional periods of gusty offshore winds around 25-30 kts are expected.


7 Day Forecast for Marine Location Near Wiscasset, ME
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location: 43.93, -69.67     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 012055 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 355 PM EST Mon Mar 1 2021

SYNOPSIS. An arctic front is fast approaching from the northwest this afternoon which will pass the region later tonight with renewed snow shower activity and a few squalls possibly. Winds will increase in the wake of the arctic front tonight and temperatures will take a tumble. Very cold wind chill values are expected later tonight and Tuesday with wind gusts of 40 to 50 MPH expected. Thereafter, little if any precipitation is expected for the rest of the week outside of mountain snow showers. However, colder than normal temperatures are expected on average, especially by the end of the week.

NEAR TERM /TONIGHT/. Main concern tonight will be the passage of arctic cold front . winds will be covered below as they mostly take place very early Tue morning thru mid afternoon.

Front is just entering Nrn zones at this hour . with a combination of rain and snow showers along it. Temps are falling sharply behind it . from the upper 30s into the upper 20s. The core of the tropopause polar vortex (TPV) is easily seen spinning to the E of Georgian Bay. This will be the main feature to watch for snow squalls and plunging temps. Current trajectory would have it grazing Srn NH this evening . and that is where I have the highest PoP. Core of the best snow squall parameters looks like it may stay S of the forecast area . so this will need watching thru the evening but I have not played up the threat too much with respective to brief heavy snow and low visibility in the grids as of yet.

SHORT TERM /TUESDAY THROUGH TUESDAY NIGHT/. Early Tue thru mid afternoon will be all about the wind. Deep mixed layer in strong CAA will support efficient momentum transfer to the surface Model guidance. especially hi-res . is showing a strong NW LLJ in excess of 50 kt developing early Tue. This favors widespread wind gusts in excess of 50 mph and wind advisories remain in place for this threat.

What is more concerning is the developing inversion that lowers into the morning Tue. The inversion is currently forecast to lower to near ridgeline. Upstream locations are forecast to have a similar inversion setting the stage for strong downslope acceleration in the lee of the mtns. Forecast cross sections feature theta lines bending towards the surface downwind of the summits . along with strong downward omega. Higher-res guidance even develops a jet in this zone . similar to other downslope wind storms. Winds are also strongest near the summit and decrease vertically. This will help support vertically propagating waves . and acceleration of flow over and down the mtn slopes. This will particularly be the case downwind of the White Mtns . Mahoosucs . and Bigelows. For this reason I have issued a high wind warning for these downslope winds. This situation is not that different from some of the big winds of recent years like Feb 2019 monthly record gust of 171 mph at MWN.

These winds combined with temps falling to near 0 will drop wind chills colder than 20 below in the foothills . and 30 below N of the mtns. There have been no changes to the wind chill headlines.

The cold and winds will be relatively short lived. An approaching wave will send a warm front Nwd and that will diminish the winds and allow temps to warm thru the night Tue night.

LONG TERM /WEDNESDAY THROUGH MONDAY/. A zonal, shortwave driven pattern gradually amplifies during the back half of the forecast period with mean troughing settling in over eastern NOAM by the weekend. Thus expect a fairly quiet period of weather with temperatures trending a couple to a few degrees below normal through the week. The only weather to speak of during this time is a few snow showers mainly over the mountains along with breezy northwest winds as shortwave axes rotate around the trough overhead, centered on the Thu/Fri time period. Ensemble anomalies agree on the general magnitude of cold with this airmass . with an h850 airmass around M20C dipping into New England by the start of the weekend. The pattern grows more uncertain by the start of the next week . a southern stream wave tracks across the southern states and may phase with the northern stream trough and bring a warmer airmass - and perhaps a storm off the coast - by the start of next week.

AVIATION /20Z MONDAY THROUGH SATURDAY/. Short Term . Remaining MVFR CIGs will clear out S of the mtns as we transition to upslope SHSN. MVFR CIGs will remain N of the mtns . including HIE. Isolated SHSN are possible S of the mtns . with local IFR possible. Most likely terminals affected will be HIE and then LEB. Small chance these will also sneak into CON and MHT. Winds ramp up late tonight thru midday Tue. Surface gusts of 30 to 40 kt possible at all terminals. Diminishing winds and VFR conditions expected Tue night.

Long Term . VFR prevails through the long term with a general NW wind. The best shot at any restrictions is in upslope flow and SHSN.

MARINE. Short Term . Arctic front is dropping into Nrn zones at this time and will cross the waters this evening. Strong winds gusts will develop behind it. Isolated heavy snow showers are possible along the front. Headlines for wind have not changed but the heavy freezing spray warning has been expanded SW into Casco Bay and the waters N of Cape Elizabeth.

Long Term . SCA conditions at times in offshore flow but otherwise fairly quiet over the waters for the end of the week.

GYX WATCHES/WARNINGS/ADVISORIES. ME . Wind Advisory from 1 AM to 4 PM EST Tuesday for MEZ007-014- 018>028-033. Wind Chill Advisory from 2 AM to 11 AM EST Tuesday for MEZ012>014. High Wind Warning from 5 AM to 3 PM EST Tuesday for MEZ008-009- 012-013. Wind Chill Warning from 2 AM to 11 AM EST Tuesday for MEZ007>009. NH . Wind Advisory from 1 AM to 4 PM EST Tuesday for NHZ001>003- 005>015. Wind Chill Advisory from 2 AM to 11 AM EST Tuesday for NHZ003- 004. High Wind Warning from 5 AM to 3 PM EST Tuesday for NHZ004. Wind Chill Warning from 2 AM to 11 AM EST Tuesday for NHZ001- 002. MARINE . Heavy Freezing Spray Warning from 2 AM to 1 PM EST Tuesday for ANZ150>153. Gale Warning from 7 PM this evening to 7 PM EST Tuesday for ANZ153. Storm Warning from midnight tonight to 1 PM EST Tuesday for ANZ150>152-154. Freezing Spray Advisory from 2 AM to 1 PM EST Tuesday for ANZ154.



NEAR TERM . Legro SHORT TERM . Legro LONG TERM . Casey


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44032 - Buoy E0104 - Central Maine Shelf 22 mi111 min W 9.7 G 12 41°F 43°F5 ft992 hPa
CASM1 - 8418150 - Portland, ME 36 mi55 min 43°F 38°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 37 mi35 min W 18 G 21 42°F 40°F992.9 hPa37°F
44033 - Buoy F0103 - West Penobscot Bay 37 mi111 min SW 3.9 G 7.8 40°F 38°F4 ft991.6 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wiscasset Airport, ME2 mi62 minVar 310.00 miOvercast40°F39°F97%993.1 hPa

Link to 5 minute data for KIWI

Wind History from IWI (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmE3CalmCalm3CalmSE565CalmSE7E43CalmCalmW3CalmW4Calm3
1 day ago5S4SW6W66W4W3W4W45CalmCalmCalmCalmCalmCalmSW4SW3Calm3W4W4SW5SW4
2 days ago4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW3CalmCalmS5S8
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Tide / Current Tables for Cross River entrance, Maine
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Cross River entrance
Click for Map
Mon -- 12:10 AM EST     10.24 feet High Tide
Mon -- 06:12 AM EST     -0.93 feet Low Tide
Mon -- 06:15 AM EST     Sunrise
Mon -- 07:45 AM EST     Moonset
Mon -- 12:28 PM EST     10.77 feet High Tide
Mon -- 05:27 PM EST     Sunset
Mon -- 06:37 PM EST     -1.18 feet Low Tide
Mon -- 08:26 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.29.88.15.42.50.1-0.9-0.51.23.96.89.310.610.69.26.73.60.8-0.9-1.10.12.45.48.1

Tide / Current Tables for Sheepscot River (off Barter Island), Maine Current
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Sheepscot River (off Barter Island)
Click for Map
Mon -- 01:05 AM EST     -0.00 knots Slack
Mon -- 04:03 AM EST     -1.32 knots Max Ebb
Mon -- 06:15 AM EST     Sunrise
Mon -- 07:33 AM EST     0.00 knots Slack
Mon -- 07:45 AM EST     Moonset
Mon -- 09:46 AM EST     1.13 knots Max Flood
Mon -- 01:13 PM EST     -0.00 knots Slack
Mon -- 04:25 PM EST     -1.43 knots Max Ebb
Mon -- 05:27 PM EST     Sunset
Mon -- 07:59 PM EST     0.00 knots Slack
Mon -- 08:26 PM EST     Moonrise
Mon -- 10:13 PM EST     1.17 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40-0.5-1.1-1.3-1.2-0.9-0.40.311.10.80.40.1-0.4-1-1.4-1.4-1.1-0.600.71.21

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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