Saturday, March23, 2019 L-36.com


Marine Weather and Tides
Topsham, ME

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:36AMSunset 6:56PM Saturday March 23, 2019 1:19 PM EDT (17:19 UTC) Moonrise 10:13PMMoonset 8:23AM Illumination 92% Phase: Waning Gibbous; Moon at 17 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- 1106 Am Edt Sat Mar 23 2019
.gale warning in effect until 8 pm edt this evening...
This afternoon..NW winds 20 to 25 kt, becoming 15 to 25 kt. Gusts up to 35 kt. Seas 4 to 6 ft.
Tonight..NW winds 10 to 20 kt with gusts up to 30 kt, becoming W 5 to 10 kt with gusts up to 20 kt after midnight. Seas 1 to 2 ft.
Sun..W winds 5 to 10 kt. Seas 1 foot or less.
Sun night..W winds 5 to 10 kt. Seas 1 foot or less.
Mon..NW winds 5 to 10 kt. Seas 1 foot or less.
Mon night..NW winds around 10 kt with gusts up to 20 kt. Seas 1 foot or less.
Tue..NW winds around 10 kt with gusts up to 20 kt. Seas 1 foot or less.
Tue night..N winds 5 to 10 kt. Seas 1 foot or less.
Wed..W winds 5 to 10 kt. Seas 1 foot or less.
Wed night..SW winds 5 to 10 kt. Seas 1 foot or less.
ANZ100 1106 Am Edt Sat Mar 23 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure will move northeast through the canadian maritimes today. A cold front will approach from the north later tonight and Sunday and cross the waters Sunday night. High pressure then builds in early in Monday through Wednesday and looks to remain just offshore for the end of the week. &&


7 Day Forecast for Marine Location Near Topsham, ME
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location: 43.92, -69.96     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 231505 aab
afdgyx
area forecast discussion... Updated
national weather service gray me
1105 am edt Sat mar 23 2019

Synopsis
Low pressure will shift northeast across the canadian maritimes,
and provide a gusty northwest flow today. High pressure builds
south of the region briefly on Sunday, with a cold front moving
through Sunday night and early Monday. A brief shot of cold air
moves in Tuesday, with a moderating trend on Wednesday, as high
pressure settles over new england. The highs shifts slowly
offshore for the end of the week and provides a warming trend
with continued fair weather.

Near term until 6 pm this evening
Update... Made some change to temps dewpoint sky cover based on
latest observational trends. Also took a look at the latest wind
guidance this morning. We will see areas that were cloud covered
start to mix out into some higher gusts... But overall based on
mixing to around 40kt... I expect sub-advisory level gusts to
continue into the afternoon.

Previously...

low pressure moves off to the northeast and through the canadian
maritimes today. One more lobe of vorticity swinging around the
parent mid tropospheric low is swinging through early this
morning providing a southward moving band of rain and snow
showers. This should depart early on, likely prior to 12z. Will
leave winter storm warning up for a few more hours in the
western me mountains where upslope snow is still occurring.

Otherwise, the main theme today will be clearing and windy, with
gusts occasionally reaching 40 mph. With no real cold air mass
in the wake of this low pressure system, downsloping winds and
increasing sunshine should allow the coastal plain and portions
of southern nh to warm well into the 40s today.

Short term 6 pm this evening through 6 pm Sunday
Winds diminish this evening as a ridge of high pressure
gradually builds in. Fair weather is expected tonight with
little in the way of clouds. A cold front will gradually push
southward through the forecast area during the afternoon hours
Sunday. No precipitation is expected with this front except for
a few rain and snow showers near the canadian border. Westerly
flow ahead of the front will allow temperatures to warm
considerably, with highs well into the 50s, except 40s in the
mountains. Low probability of a couple of 60 degree readings in
southeastern nh.

Long term Sunday night through Friday
While 500 mb pattern across noam and environs continues to
trend toward +pna, it does become less stable in the latter part
of the forecast, and blocking over the WRN atlantic is
forecast to hold trough back far enough to our west to keep
things dry and mild by the end of the week the week as well.

Unfortunately, it will get cold before it gets warm as polar
vortex dives SE toward labrador Sun night into Tuesday. The
trough associated with the closed will swing across northern
new england Sunday night and Monday ans will help push a cold
front through the area. Dynamics are weak as trough show only
little amplification, and air mass is on the dry side, so do not
expect much with front as it comes through. Maybe a few shsn is
the mtns Sunday night, and outside chance of shsn or shra
toward coast late Sunday into Monday morning, but nothing which
much impact at this point. Monday will be cooler than Sunday
with highs around 30 in the mtns to 40-45 in the south, but the
coldest air will have to wait until secondary trough swings
through late Monday night, which also should come through dry,
and the coldest air will move in for Tue into Tue night, with
850 mb temps dropping to around -15c. So, highs Tuesday will be
limited to the the mid to upper 20s in the north to the mid to
upper 30s in the south.

After that it looks dry with a general warming trend as high
pressure shifts across the area Wednesday, and then settles
offshore thu-sat at least , which will bring temps above normal
for that period, with possible widespread 50s fri-sat.

Aviation 15z Saturday through Wednesday
Short term... MVFR conditions to improve toVFR this morning and
continue through Sunday. In the mountains, MVFR conditions
linger through the morning in upslope snow showers, but improve
this afternoon. Westerly winds at the sfc gust 25-35 kt today.

Diminishing winds andVFR conditions are expected tonight.VFR
conditions expected Sunday.

Long term... There is a small chc for a brief period of MVFR in
shsnra Sunday night. Otherwise, look forVFR Monday thru wed.

Marine
Short term... Gale warnings for westerly 35-40kt gusts today.

Winds and seas diminish tonight and Sunday.

Long term... Winds seas should stay blo SCA levels Monday thru
wed.

Tides coastal flooding
High astronomical tides continue today. However, developing
strong offshore flow should allow for surge values to decrease
to minimal values around the time of the early afternoon high
tide (145 pm in portland). Little if any issues are expected.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... Gale warning until 8 pm edt this evening for anz150>154.

Near term... Legro


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 24 mi31 min 44°F 38°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 29 mi29 min WNW 19 G 25 42°F 38°F4 ft996.6 hPa (+3.6)27°F
44032 - Buoy E0104 - Central Maine Shelf 35 mi75 min WNW 19 G 27 40°F 993.1 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wiscasset Airport, ME14 mi26 minWNW 10 G 2010.00 miA Few Clouds44°F27°F51%996.3 hPa
Auburn-Lewiston, ME20 mi23 minWNW 14 G 2510.00 miPartly Cloudy37°F23°F57%999.3 hPa

Wind History from IWI (wind in knots)
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Last 24hrNE75NE8N73N74643W43W55W4W5W44NW8
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1 day agoSW9S9
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S9S644E3SE4E4E3E336E5NE345NE44N7
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2 days agoS10
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S8S86S6S3CalmCalmS3CalmCalmCalmCalmCalmCalmCalmCalmCalmSW5SW8SW10
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Tide / Current Tables for Brunswick, Androscoggin River, Kennebec River, Maine
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
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Sat -- 02:07 AM EDT     1.29 knots Max Flood
Sat -- 05:52 AM EDT     -0.00 knots Slack
Sat -- 06:37 AM EDT     Sunrise
Sat -- 08:07 AM EDT     -1.18 knots Max Ebb
Sat -- 08:22 AM EDT     Moonset
Sat -- 11:42 AM EDT     0.00 knots Slack
Sat -- 02:29 PM EDT     1.21 knots Max Flood
Sat -- 06:14 PM EDT     -0.00 knots Slack
Sat -- 06:55 PM EDT     Sunset
Sat -- 08:29 PM EDT     -1.16 knots Max Ebb
Sat -- 10:12 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.51.11.31.21.10.6-0.1-0.9-1.2-1.1-0.8-0.40.20.81.21.21.10.80.2-0.6-1.1-1.1-0.8-0.5

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.
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Wind Forecast for Gray/Portland, ME (13,3,4,5)
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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.