Tuesday, April24, 2018 L-36.com


Marine Weather and Tides
Scar, 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 5:41AMSunset 7:37PM Tuesday April 24, 2018 8:27 AM EDT (12:27 UTC) Moonrise 1:42PMMoonset 3:10AM Illumination 67% Phase: Waxing Gibbous; Moon at 9 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- 715 Am Edt Tue Apr 24 2018
Today..S winds 5 to 10 kt, increasing to 10 to 15 kt this afternoon. Gusts up to 25 kt. Seas 1 to 2 ft, building to 2 to 4 ft this afternoon.
Tonight..S winds 10 to 15 kt, becoming 5 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain after midnight.
Wed..SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas around 2 ft. Rain. Patchy fog in the afternoon.
Wed night..SE winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 6 ft. Rain. Areas of fog.
Thu..S winds around 5 kt, becoming sw in the afternoon. Seas 3 to 5 ft. Rain likely in the morning, then a chance of showers in the afternoon. Areas of fog in the morning, then patchy fog in the afternoon.
Thu night..SW winds 5 to 10 kt. Seas 2 to 4 ft.
Fri..SW winds 5 to 10 kt. Seas 2 to 4 ft.
Fri night..S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of rain.
Sat..S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
Sat night..W winds 5 to 10 kt. Seas 2 to 4 ft.
ANZ100 715 Am Edt Tue Apr 24 2018
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure shifts east into the atlantic today, while low pressure develops over the carolina coast, moving northward toward new england on Wednesday. As the low moves through northern new england on Thursday it will send a cold front eastward across the gulf of maine with high pressure building behind it through Friday morning. The next low may track up the east coast and toward the gulf of maine as early as Friday night with a stronger cold front arriving on Saturday.

7 Day Forecast for Marine Location Near Scar, ME
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location: 43.56, -70.28     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 241116 aaa
afdgyx
area forecast discussion... Updated
national weather service gray me
716 am edt Tue apr 24 2018

Synopsis
Southerly winds today will bring in the warmest air of the
spring, though that is not saying much. Either way highs
climbing into the upper 60s to near 70 will feel very welcomed.

Onshore flow near the coast will keep those readings on the
cooler side. As we head into Wednesday unsettled weather
returns with the approach of our next storm system. Rain will
overspread the area from the southwest in the morning and work
northeast. A good soaking rain is expected for most of the
region. This system will slowly exit the region Thursday. A cold
front on Saturday will bring colder air back into the area, with
a freeze possible by Sunday morning for much of the area.

Near term until 6 pm this evening
Update... Minor changes to reflect latest observational trends.

Previous discussion... Once again with models forecasting mixed
layer growth to h8... I expect we should do a little better than
that. Mixing down temps of +5 to +7 means we will make another
run at 70... And should see those readings a little more common
today. Increasing southerly flow will mean that near the
seacoast and deeper into midcoast me and the capital region will
see high temps early in the day before colder marine air works
inland. I used a blend of higher res guidance to show this
afternoon trend.

The other concern for this afternoon is fire danger. Temps will
be warm again... And with dewpoints not increasing much it should
mean another day with minimum rh values in the teens. Winds do
increase slightly today as well... With return flow around 15 mph
at times. So fire danger will be elevated... But not quite enough
for a headline.

Short term 6 pm this evening through 6 pm Wednesday
Tonight will see return flow continue and increasing
clouds... So readings will be milder than the past few nights. I
expect the bulk of the precip to hold off until around 8 am
wed... As it moves in from the sw. With pwat values some 2
standard deviations above normal... And a modest sely
llj... Precip should be widespread and moderate to heavy at
times. The good news is that it will be fairly progressive... And
moving out late in the day. With precip ongoing for much of the
day... High temps will be back on the cool side again. Highs
should struggle into the 50s.

Long term Wednesday night through Monday
Upper low currently over the tennessee valley will slowly make
its way toward the east coast and be pulled northward toward
new england on Wednesday in response to a northern stream
trough. This will be our biggest precipitation maker of the
forecast. While this low does pull northeast into the canadian
atlantic, more troughs drop in through the central united
states, carving out a broader trough which will be with us into
the first part of next week, while also opening up the door to
some colder air from the arctic dropping down into our area this
weekend.

Low pressure moves through the area Wednesday night, with
heavier rain falling ahead of the low in an onshore flow with a
tropical connection. Could see some widespread fog as well as
the moist air mass moves over the cold gulf of maine and
condenses over northern new england. The band of persistent rain
should shift east into eastern maine Thursday morning, while the
cold upper low moves in from the west, bringing more scattered
showers with some terrain enhancement.

Brief ridging moves by Friday morning, bringing a break from the
precipitation and a chance for the Sun to warm things up into
the low 60s again. But another trough rotating around the
periphery of the larger developing upper trough may bring some
light rain Friday afternoon into Friday night mainly closer to
the coast. Yesterday at this time, the GFS was alone in
developing this wave into a noticeable surface low with
precipitation affecting our area, but now the cmc has jumped on
board as well. Even the ecmwf, while not focusing a surface low
like the others, does still bring the wave close enough that its
broader flow pattern still supports the idea. Thus have
added increased rain chances during this time period, though it
should be fairly light.

While the first periphery wave shoots off to the northeast on
Saturday, a cold upper trough will be moving in out of the great
lakes. This will bring a surge of colder air into the region
along with a chance of showers as it destabilizes the low levels
of the atmosphere. The brunt of this cold will be felt on Sunday
and Sunday night when freezing temperatures will be possible
area wide, especially if the surface high is able to build in
during the night.

Subsident northwest flow on Monday will keep things dry but
gradually warming as an upper ridge pokes in from the west. This
could bring us a bit warmer temperatures next week.

Aviation 11z Tuesday through Saturday
Short term...VFR conditions thru most of tonight. Ra moves in
from the SW late tonight and spreads newd. Areas of ifr expected
in ra during the day wed.

Long term... Lifr conditions expected along the coastal plain in
rain and fog Wednesday night, exiting to the east Thursday
morning. Conditions on the other side of the mountains will be a
little better, but still possibly ifr. Conditions improve a bit
on Thursday, but afternoon showers will bring variable
conditions especially in the north and west. Should see a break
ofVFR conditions Thursday night into Friday, but a low moving
near the coast could bring some ifr conditions and light rain
Friday evening into Saturday.

Marine
Short term... Winds and seas will remain below SCA thresholds
today. Increasing onshore flow Wed will allow winds and seas to
build to SCA thresholds... Especially later in the day.

Long term... Onshore south to southeast flow peaks Wednesday
night probably right around 30 kt before a shift to the west on
Thursday. The onshore flow will bring higher wave heights,
generally 5 to 9 ft with the highest in the central gulf of
maine waters. Winds weaken as they turn westerly on Thursday,
with waves taking a bit longer to subside, possibly staying
above 5 ft through Friday.

Fire weather
Elevated fire danger is possible today as temps climb even
higher than yesterday. Dewpoints will not increase much... Which
means more minimum rh values in the teens. S winds will increase
today too... Into the 15 mph range... So we may approach but stay
just below red flag conditions. Cooler temps but stronger winds
are expected near the coast... Which may just trade off to keep
the fire danger elevated there as well. Widespread wetting rain
is expected Wed to diminish the fire danger.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... None.

Near term... Legro
short term... Legro
long term... Kimble
aviation... Kimble legro
marine... Kimble legro
fire weather... Legro


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 7 mi40 min 46°F 42°F1028.3 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 8 mi38 min SSW 14 G 16 44°F 43°F2 ft1028.1 hPa (+0.0)37°F
WEXM1 - Wells Reserve, ME 21 mi88 min SSW 2.9 39°F 28°F
WELM1 - 8419317 - Wells, ME 22 mi40 min SSW 6 G 6 45°F 44°F1028.9 hPa
44030 - Buoy B0102 - Western Maine Shelf 27 mi84 min S 12 G 14 44°F 43°F2 ft1027.3 hPa
IOSN3 - Isle of Shoals, NH 45 mi88 min SSW 12 G 13 44°F 1028.9 hPa33°F
BGXN3 - Great Bay Reserve, NH 45 mi103 min ESE 1.9 35°F 979 hPa27°F

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Jetport, ME7 mi37 minSSW 610.00 miPartly Cloudy45°F26°F48%1028.4 hPa

Wind History from PWM (wind in knots)
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Last 24hrNW636NW7S14
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S11S10S6S53CalmSW4CalmSW4S5S6SW5S6
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N96NW6NW34CalmW4W6W3W5W7W6NW9

Tide / Current Tables for Richmond Island, Maine
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Richmond Island
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Tue -- 12:26 AM EDT     0.88 feet Low Tide
Tue -- 03:09 AM EDT     Moonset
Tue -- 05:43 AM EDT     Sunrise
Tue -- 06:44 AM EDT     9.54 feet High Tide
Tue -- 01:11 PM EDT     0.03 feet Low Tide
Tue -- 01:42 PM EDT     Moonrise
Tue -- 07:34 PM EDT     9.03 feet High Tide
Tue -- 07:34 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
112.146.28.19.39.58.774.72.40.80.10.41.73.86.17.98.98.986.23.9

Tide / Current Tables for Portland Head Light, Maine
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Portland Head Light
Click for Map
Tue -- 12:27 AM EDT     0.87 feet Low Tide
Tue -- 03:09 AM EDT     Moonset
Tue -- 05:43 AM EDT     Sunrise
Tue -- 06:45 AM EDT     9.44 feet High Tide
Tue -- 01:12 PM EDT     0.03 feet Low Tide
Tue -- 01:41 PM EDT     Moonrise
Tue -- 07:34 PM EDT     Sunset
Tue -- 07:35 PM EDT     8.94 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1123.96.189.29.48.774.72.40.80.10.41.73.867.88.88.97.96.13.9

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gray/Portland, ME (8,2,3,4)
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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.