Wednesday, April26, 2017 L-36.com


Marine Weather and Tides
Sanford, ME

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 5:40AMSunset 7:42PM Wednesday April 26, 2017 7:51 AM EDT (11:51 UTC) Moonrise 6:08AMMoonset 7:57PM Illumination 0% Phase: New Moon; Moon at 0 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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ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 643 Am Edt Wed Apr 26 2017
.small craft advisory in effect through this evening...
.small craft advisory for hazardous seas in effect from this evening through Friday evening...
Today..E winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 7 ft. Areas of drizzle. Rain. Patchy fog.
Tonight..E winds 5 to 10 kt. Seas 4 to 7 ft. Areas of drizzle. Rain likely...mainly in the evening. Patchy fog.
Thu..NE winds around 5 kt. Seas 4 to 6 ft. A chance of rain. Areas of drizzle in the morning...then patchy drizzle in the afternoon. Patchy fog.
Thu night..SE winds around 5 kt. Seas 4 to 6 ft. Patchy drizzle. Patchy fog. Vsby 1 to 3 nm.
Fri..S winds 5 to 10 kt. Seas 3 to 5 ft. Patchy drizzle in the morning. Patchy fog in the morning with vsby 1 to 3 nm.
Fri night..SW winds 5 to 10 kt. Seas 3 to 5 ft.
Sat..SW winds 5 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.
Sat night..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
Sun..E winds 5 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Sun night..S winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
ANZ100 643 Am Edt Wed Apr 26 2017
Synopsis for stonington me to merrimack river ma out to 25 nm.. A southeast flow for today as low pressure moves north toward the gulf of maine. Although winds will decrease as the low arrives, wave heights will remain elevated through the end of the week. A cold front will move in from the west on Friday and cross the waters on Saturday with high pressure building in on Sunday.

7 Day Forecast for Marine Location Near Sanford, ME
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location: 43.44, -70.77     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 261052
afdgyx
area forecast discussion
national weather service gray me
652 am edt Wed apr 26 2017

Synopsis
Cloudy, cool, and wet conditions are expected today through
tonight as weakening low pressure along the mid atlantic coast
very slowly moves north to over CAPE cod Thursday and then into
the gulf of maine Thursday night. Expect an inch or two of rain
east of the mountains through tonight. By Thursday there will be
some improvement west of the mountains with warmer temperatures
arriving, while east of the mountains it will remain cloudy and
cool. Improving conditions and warmer temperatures across all
areas arrive for Friday. A cold front will pass through the
region Saturday with canadian high pressure following for
Sunday. Another storm system looks to bring rain early next
week.

Near term /until 6 pm this evening/
645 am update: rain across the area will continue. Pops look
good. Ingested latest obs data and only very minor tweaks to
temps since they have been fairly constant as well as uniform
due to the broad onshore flow.

Previous discussion:
low pres centered along the DELMARVA coast will very slowly
track northeast today. This will continue the bands of rain to
rotate north across the region combined with a raw onshore
flow. Temperatures will remain cool today considering water
temps still only in the lower to mid 40s and with onshore winds
can't see temps moving much above 50 except over western areas
of nh. For practical purposes used blend of consall with a
weight of the cooler namdng for MAX temps today. This reflects a
cooler temp forecast today rather than straight guidance off of
the mav/met and some other models. Pops forecast and qpf
remains similar to prior forecast model runs. QPF still looks
heaviest toward coastal areas with much less in the mountains
and headwaters, generally around a half inch or so.

Short term /6 pm this evening through 6 pm Thursday/
Tonight and Thursday the area of low pressure weakens as it
tracks northeast to over CAPE cod and then eventually into the
gulf of maine by late Thursday. A weak but continued onshore
flow will continue with the rain tonight becoming more scattered
by Thursday. Due to the low level air mass being at
supersaturation, areas of drizzle and fog over eastern and
coastal areas are expected into Thursday, this may continue
through the day especially along the coast. Guidance temps were
once again moderated for to the cooler side for highs on
Thursday with the namdng guidance.

Long term /Thursday night through Tuesday/
The long period period looks to feature a pretty progressive
pattern across the northeastern states as weather systems move
through pretty quickly.

A warm frontal boundary looks to remain to our south Thursday
night. This will mean continued cool weather along with fog and
drizzle. The main question is how long does it take for the
murky low level airmass to be shunted out. Most guidance does so
pretty quickly on Friday while the latest ECMWF keeps it around.

This will have an impact on sensible weather such as
temperatures, clouds, and precip. For now took a blend of the
guidance while giving the ECMWF some credence. The best chance
of warming into the 70s will be across southern zones with
northern/eastern zones having the best probability of staying in
the low level soup for a good portion of the day. In addition,
much of the 00z model suite has a decent amount of elevated
instability Friday morning in advance of a short wave trough, so
cannot rule out thunder during this time as well.

Thereafter, a cold front will move across the region during the
day on Saturday. At this time pops look to be minimal at best as
this front will be moisture-starved. A cool, canadian air mass
will be ushered in behind the front for Saturday night and
Sunday.

The early next week period looks to get unsettled once again as
another potent plains system ejects out toward the northeast.

This may mean more rain, fog, and drizzle for the area as
current model guidance generally agrees on onshore flow north of
a warm frontal boundary here which is pretty typical for spring.

Aviation /12z Wednesday through Sunday/
Short term... Ifr/lifr conditions in rain and areas of drizzle
and patchy fog today and tonight across most areas. Llws
expected over eastern and southern areas this morning into the
afternoon due to the low level southeast flow aloft while
damming/nosing of high allowing light nne surface winds.

Conditions over western nh and northwest of the white mountains
may remain MVFR. Low clouds and possible fog and drizzle will
keep conditions ifr through Thursday over eastern and southern
areas of me while conditions over western nh and across the
mountains may be mainly MVFR Thursday.

Long term...

ifr conditions are likely Thursday night in low clouds and fog.

Conditions will likely improve Friday, especially afternoon.

However, MVFR conditions are still likely along the coast as
well as northern and central zones. Still a chance ifr
conditions could hang on in those areas all day Friday into
Friday night as onshore flow continues.VFR conditions return
for Saturday and Sunday.

Marine
Short term... The easterly flow shifts to southeast today as low
pressure approaches. Winds diminish below advisory levels but
wave heights will remain at or above 5 ft over the outer waters for
several days due to a continued onshore fetch. Inside the
protected bays, seas should subside to a 2-4 ft range so no
sca's will be needed.

Long term...

thurs night and fri... Small craft conditions remain likely
outside the bays, mainly for seas.

Sat and Sat night... Small craft conditions once again possible
in association with cold frontal passage.Vrb03

Fire weather
Expect wet conditions area-wide today into tonight. Could see
somewhat warmer temperatures west of the mountains on Thursday
while it remains cloudy, cool, and damp east of the mountains
into Friday.

Hydrology
With continued snow melt river levels remain high. Add another
1 inch of rain on top of that and at least a few rivers could
rise close to flood stage. At this time no river is forecast to
reach flood stage, but it would not be out of the question for
some minor flooding to occur depending on how much rain falls in
key areas.

Tides/coastal flooding
High tide tonight is 11.5 ft. Although winds will become
more southeasterly at this point, there will likely be a
residual surge in the gulf of maine which could cause
another 0.5 to 1 ft surge leading to the potential for minor
coastal flooding and splash over.

The highest nighttime astronomical high tides are 11.7 ft after
midnight Friday and again Saturday mornings. With a prolonged
onshore fetch, albeit light, some minor problems are possible on
these tides as well.

Gyx watches/warnings/advisories
Me... Coastal flood advisory from 10 pm this evening to 2 am edt
Thursday for mez023-024.

Nh... Coastal flood advisory from 10 pm this evening to 2 am edt
Thursday for nhz014.

Marine... Small craft advisory until 8 pm edt this evening for anz150-
152-154.

Small craft advisory for hazardous seas from 8 pm this evening
to 8 pm edt Friday for anz150-152-154.

Near term... Marine
short term... Marine
long term... Ekster


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WELM1 - 8419317 - Wells, ME 14 mi51 min NNE 8 G 12 46°F 46°F1015.7 hPa (-1.6)
WEXM1 - Wells Reserve, ME 14 mi51 min N 7 46°F 46°F
44030 - Buoy B0102 - Western Maine Shelf 25 mi107 min NNE 18 G 21 44°F 43°F7 ft1015.1 hPa
BGXN3 - Great Bay Reserve, NH 27 mi66 min N 2.9 47°F 1015 hPa47°F
CASM1 - 8418150 - Portland, ME 32 mi51 min 46°F 45°F1016.5 hPa (-1.6)
44007 - PORTLAND 12 NM Southeast of Portland,ME 34 mi61 min NNE 14 G 16 44°F 43°F6 ft1016 hPa (-1.9)44°F
IOSN3 - Isle of Shoals, NH 34 mi51 min NNE 24 G 26 45°F 1013.7 hPa (-2.0)45°F

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sanford, Sanford Regional Airport, ME5 mi55 minNNE 83.00 miLight Rain Fog/Mist45°F44°F97%1017.4 hPa
Rochester - Skyhaven Airport, NH14 mi60 minNNE 71.50 miRain Fog/Mist45°F43°F93%1015 hPa
Pease Air Force Base / Portsmouth, NH24 mi1.9 hrsNNE 93.00 miLight Rain Fog/Mist46°F45°F97%1014.8 hPa

Wind History from SFM (wind in knots)
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Last 24hrNE7NE7NE11NE10NE15NE14NE13E10
G15
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1 day agoCalmE3NE4356SE7SE7--SE5E5E5E5E3E4NE3NE3NE5N6NE7NE8NE8NE9NE6
2 days agoNW5NW5CalmCalmSW6W74
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S865S4S4SW3S4SW4--SW5SW3CalmNE3CalmSW4

Tide / Current Tables for Wells, Webhannet River, Maine
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Wells
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Wed -- 05:27 AM EDT     -1.04 feet Low Tide
Wed -- 05:42 AM EDT     Sunrise
Wed -- 06:08 AM EDT     Moonrise
Wed -- 08:18 AM EDT     New Moon
Wed -- 11:42 AM EDT     9.96 feet High Tide
Wed -- 05:44 PM EDT     -0.61 feet Low Tide
Wed -- 07:38 PM EDT     Sunset
Wed -- 07:55 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
108.463.10.5-0.9-0.80.52.85.68.19.69.98.96.94.21.6-0.2-0.60.52.75.48.110.1

Tide / Current Tables for Dover, Cocheco River, Piscataqua River, New Hampshire
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Dover
Click for Map
Wed -- 12:51 AM EDT     8.49 feet High Tide
Wed -- 05:43 AM EDT     Sunrise
Wed -- 06:09 AM EDT     Moonrise
Wed -- 07:02 AM EDT     -0.94 feet Low Tide
Wed -- 08:18 AM EDT     New Moon
Wed -- 01:21 PM EDT     8.18 feet High Tide
Wed -- 07:19 PM EDT     -0.68 feet Low Tide
Wed -- 07:39 PM EDT     Sunset
Wed -- 07:56 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.18.57.86.13.81.4-0.3-0.9-0.413.25.57.28.186.84.72.40.4-0.6-0.40.82.95.3

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Gray/Portland, ME (7,2,3,4)
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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.