Friday, April20, 2018 L-36.com


Marine Weather and Tides
Brunswick Station, ME

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 5:45AMSunset 7:31PM Friday April 20, 2018 11:40 PM EDT (03:40 UTC) Moonrise 9:21AMMoonset 12:00AM Illumination 32% Phase: Waxing Crescent; Moon at 6 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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ANZ153 Casco Bay- 1133 Pm Edt Fri Apr 20 2018
Overnight..NW winds around 10 kt. Seas 1 to 2 ft.
Sat..NW winds around 10 kt. Seas 1 to 2 ft.
Sat night..NW winds 5 to 10 kt. Seas 1 to 2 ft.
Sun..W winds 5 to 10 kt. Seas 1 to 2 ft in the morning, then 1 foot or less.
Sun night..NW winds 5 to 10 kt. Seas 1 foot or less.
Mon..NW winds around 5 kt, becoming sw in the afternoon. Seas 1 foot or less.
Mon night..SW winds 5 to 10 kt. Seas 1 to 2 ft.
Tue..SW winds 5 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Tue night..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Wed..S winds 5 to 10 kt. Seas around 2 ft. Rain likely.
Wed night..E winds around 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain likely.
ANZ100 1133 Pm Edt Fri Apr 20 2018
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure continues to move slowly northeast through the maritimes overnight and tomorrow. High pressure builds in by the end of the weekend with Sunny and warmer weather likely appearing early next week.

7 Day Forecast for Marine Location Near Brunswick Station, ME
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location: 43.79, -69.89     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 210333
afdgyx
area forecast discussion
national weather service gray me
1133 pm edt Fri apr 20 2018

Synopsis
Low pressure centered southeast of nova scotia will drag several
weak troughs across the area through early Saturday. The
circulation around this system will produce cool weather through
Saturday with a few rain and snow showers, especially across
the higher terrain. By Sunday, high pressure and sunny weather
arrives along with the start of a gradual warming trend. By mid
week, unsettled weather returns with the approach of our next
storm system.

Near term until 6 am Saturday morning
1133 pm... For this estf update I adjusted near term grids to
reflect current GOES satellite trends as well as the latest
mesonet.

Prev disc...

1030pm update...

still a few stray showers in the eastern part of the area as
well as upslope areas of the new hampshire and maine mountains.

On a drying trend, though, aside from the upslope. Clouds have
cleared out downwind of the mountains, though temperatures have
stayed up a bit, buoyed by a persistent wind preventing a good
inversion from setting up. Still expect temperatures to drop
down to freezing or below for most areas tonight eventually once
we get a bit of a break from the winds.

630pm update...

still seeing a few convective showers rolling through the
northeastern part of the area as the upper low finally pulls
away to the northeast. Have received a report of some small hail
with the heftier showers, which fits fairly well with the
environment today of very low freezing levels with shallow
convective showers. Won't see any significant hail, but this is
fairly typical for afternoon showers this time of year. Not
really a good way of putting this in the forecast and it won't
last long anyway. With the upper low moving east, we don't
really see any more waves moving around it to enhance shower
activity, so the remaining showers should transition to upslope
dominant within the broadly subsident flow on the back side of
the low tonight. Low temperature forecasts the past few nights
have been a bit too cold, so bias was initially to not lower
temperatures tonight. However, clouds have already broken up
downwind of the mountains, and expect this trend to continue
through the night unlike the past several nights. With
dewpoints in the upper 20s, we should have a good run at
freezing or colder for most locations tonight.

Original discussion...

the northeast is currently dominated by a closed upper low
which is bringing weak successive waves of energy across the
forecast area. Cold air stratus as well as a few widely
scattered rain and snow showers are affecting the region today,
mainly over the higher terrain and towards the mid coast. Mixing
as well as a tighter surface pressure gradient has allowed
winds to pick up this afternoon. Expect speeds to begin to
diminish later tonight before increasing once again Saturday
morning.

Additional snow showers and clouds will plague the mountains and
foothills overnight and into Saturday morning as more short wave
energy moves across the northeast. However, looking at froude
numbers, accumulating snow is more likely for the overnight
period right along the canadian border to 40 miles south or so,
as well as the notches.

Short term 6 am Saturday morning through Saturday night
Cyclonic flow will continue to wrap up and shift slowly
northeast on Saturday, with flow becoming unblocked. This
indicates that widely scattered snow flurries over the mountains
are more likely during the day Saturday as opposed to
accumulating snow. Temperatures on Saturday will be similar to
today with perhaps a few warmer spots inland. We'll see another
day of gusty NW winds which will drop off after sunset.

Long term Sunday through Friday
A prolonged period of upper level ridging brings mostly sunny skies
and high pressure to the region right through the middle of next
week. At 500mb, a ridge moves over the eastern portion of north
america for the weekend. As we move into next week a cut off low
tries to develop through the southeast, however the ridging
continues over the northeast with little to no precipitation.

Temperatures will warm throughout the period with highs getting
into the 60s by Tuesday.

By Tuesday the cut off low over the southeast may begin to break
down, resulting in low pressure tracking up the eastern seaboard
with rain moving into northern new england mid week. Onshore flow
will drop temperatures along the coast. We're still talking about
day 6, so there is plenty of room for the timing to shift as it
often does with cut off patterns however there is enough of a
consensus to stick with likely pops for Wednesday into Thursday.

Aviation 04z Saturday through Wednesday
Short term through Saturday ...VFR with sct MVFR conditions in
mountain -shra shsn. Improving toVFR throughout after 12z
Saturday.

As far as llws, this shouldn't be an issue as winds aloft will
weaken overnight. Through this evening however, expect gusts
into the 20s.

Long term... SustainedVFR right through the middle of next week as
high pressure builds over the area.

Marine
Short term through Saturday ... Gusty westerly flow will persist
through the period but should remain just below SCA even outside
the bays.

Long term... Quiet on the waters through mid next week as high
pressure builds into the region. Low pressure moves up the coast
may bring small craft conditions mid next week.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... None.

Es


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 21 mi41 min 42°F 41°F1022.4 hPa (+1.7)
44007 - PORTLAND 12 NM Southeast of Portland,ME 23 mi51 min W 12 G 14 41°F 41°F2 ft1022.1 hPa (+2.1)32°F
44032 - Buoy E0104 - Central Maine Shelf 29 mi97 min WNW 16 G 19 43°F 4 ft1019.5 hPa
WEXM1 - Wells Reserve, ME 47 mi41 min W 5.1 41°F 28°F
WELM1 - 8419317 - Wells, ME 48 mi41 min NW 8 G 14 41°F 44°F1022.9 hPa (+1.2)

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wiscasset Airport, ME15 mi48 minW 410.00 miOvercast42°F30°F65%1021.7 hPa
Portland, Portland International Jetport, ME24 mi50 minWNW 1110.00 miMostly Cloudy40°F28°F65%1022.4 hPa

Wind History from IWI (wind in knots)
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Last 24hrCalmW3W4W34W3W3434NW7
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1 day agoCalmW3SW43CalmCalmSW3CalmCalmSW3S44S5SW7S5S44S3SW4W4Calm33Calm
2 days agoSW3CalmCalmW3SW4SW3SW3355W6SW6W76--CalmW6
G16
W7W4W4CalmCalm33

Tide / Current Tables for Cundy Harbor, New Meadows River, Maine
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Cundy Harbor
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Fri -- 02:33 AM EDT     10.55 feet High Tide
Fri -- 05:48 AM EDT     Sunrise
Fri -- 08:57 AM EDT     -0.86 feet Low Tide
Fri -- 09:21 AM EDT     Moonrise
Fri -- 03:15 PM EDT     9.39 feet High Tide
Fri -- 07:29 PM EDT     Sunset
Fri -- 09:12 PM EDT     0.26 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.6910.310.49.37.24.41.7-0.2-0.9-0.21.646.58.59.49.17.85.73.21.20.30.62.1

Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
Click for Map
Fri -- 12:20 AM EDT     0.00 knots Slack
Fri -- 03:29 AM EDT     1.18 knots Max Flood
Fri -- 05:47 AM EDT     Sunrise
Fri -- 07:25 AM EDT     -0.00 knots Slack
Fri -- 09:20 AM EDT     Moonrise
Fri -- 09:49 AM EDT     -1.14 knots Max Ebb
Fri -- 01:11 PM EDT     0.00 knots Slack
Fri -- 04:00 PM EDT     1.06 knots Max Flood
Fri -- 07:28 PM EDT     Sunset
Fri -- 08:01 PM EDT     -0.00 knots Slack
Fri -- 10:12 PM EDT     -0.96 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.10.30.81.11.10.90.60.2-0.4-1-1.1-0.8-0.4-0.10.40.91.10.90.70.40-0.6-0.9-0.8

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Northeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gray/Portland, ME (23,6,7,8)
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Ground Weather Radar Station Portland, ME
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.