Thursday, May24, 2018 L-36.com


Marine Weather and Tides
Sanford, ME

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 5:09AMSunset 8:12PM Thursday May 24, 2018 10:06 AM EDT (14:06 UTC) Moonrise 3:01PMMoonset 2:55AM Illumination 73% Phase: Waxing Gibbous; Moon at 10 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- 927 Am Edt Thu May 24 2018
.small craft advisory in effect from this evening through Friday evening...
This afternoon..SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Tonight..SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.
Fri..SW winds 10 to 20 kt, becoming 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft.
Fri night..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Sat..SW winds 5 to 15 kt with gusts up to 20 kt, becoming S 5 to 10 kt in the afternoon. Seas 2 to 4 ft. A chance of showers and tstms in the afternoon.
Sat night..E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of tstms in the evening. A chance of showers.
Sun..E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers.
Sun night..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. A chance of showers.
Mon..E winds 5 to 10 kt. Seas around 4 ft. A chance of showers.
Mon night..NW winds around 5 kt. Seas around 3 ft. A chance of showers. Winds and seas higher in and near tstms.
ANZ100 927 Am Edt Thu May 24 2018
Synopsis for stonington me to merrimack river ma out to 25 nm.. A warm front will cross the region later today and tonight. High pressure will build into the region on Friday with increasing southerly flow. A backdoor cold front will move southward across the waters over the weekend. A weak disturbance will cross the region early next week.

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 241334
afdgyx
area forecast discussion
national weather service gray me
934 am edt Thu may 24 2018

Synopsis
A warm front will move north across the area later today and
tonight. This will lead to very warm conditions on Friday. A
cold front pushes in from the northeast late Saturday, providing
a chance of showers and making Sunday much cooler. Cool and
cloudy conditions linger into Monday, before we start to see it
warm up during next week.

Near term until 6 pm this evening
930 am update...

low clouds continue along and near the midcoast region this
morning with a mid level deck over portions of southern and
central new hampshire. This mid level deck represents the
leading edge of warmer air that remains situated to our west.

This warm front will push east late in the day. It will remain
moisture starved so if any widely scattered showers develop,
they will be light and brief.

Expect onshore winds near the coast today with chilly conditions
and highs only in the lower 60s. Further inland, readings will
top out in the mid 60s to lower 70s this afternoon.

7am update... Fog and low ceilings have lifted in all but the
coast from portland to penobscot bay. Have updated the cloud
cover and temperatures.

Prev disc... Overnight some pockets of fog has formed as the
moisture is trapped in the valleys. This will quickly erode as
the Sun continues to rise.

Warm air will move into the region today as high pressure
pushes in from the west. Along with the warming temperatures
come decreasing dewpoints as the airmass to our west is quite a
bit drier. Have dropped dewpoints a bit today as upstream
observations and the potential to mix out to around 850mb will
result in increased drying. Also a few wind gusts to around
20mph are possible. Along the coast, a robust seabreeze will
develop and move inland as far as sebago lake and lewiston by
early afternoon. This will keep the high temperatures along the
coast in the 60s while inland locations reach the 70s.

Short term 6 pm this evening through 6 pm Friday
Overnight will see mostly clear skies with lows in the upper 40s
to low 50s across the region. For Friday the high pressure
continues to push in and the resulting west flow will bring
downsloping winds. Once again expect good mixing so some wind
gusts to around 20mph are possible. With the temperatures aloft
climbing to +14c at 850mb and good mixing virtually all of the
area will reach the 80s and 90f is possible in the manchester to
nashua corridor. The front begins to retreat back down from the
st. Lawrence on Friday night brining a slight chance for
thunderstorms along the canadian border.

Long term Friday night through Wednesday
For the most part cooler air aloft continues to retreat pole
ward across noam and environs, and ridging noses northward
across the central part of the continent toward hudson bay by
the middle of next week. So, while it looks good for an overall
warming trend in the larger scale and the long range, will have
to deal with back door front this weekend, which will make
things quite cool Sunday into Monday.

W-sw flow should persist thru Friday night, so mins will on the
milder side, mainly in the upper 50s to mid 60s. Initially the
front will be just N of the cwa, which will provide a threat of
showers in the north, but these should hold there thru most of
the night before a wave passing to the north start pushing that
front south.

Saturday is a bit tricky, especially for MAX temps, as the
timing of the FROPA will ultimately determine how warm it gets.

I think most spots should see mid 70s to mid 80s before the
front moves in, but the me mtns and central me could be limited
to to the mid 60s to around 70. Once that front GOES thru and
winds shift to ne, probably in the afternoon in the ERN zones
and along the coast east of pwm, temps will drop off quickly and
noticeably. For the rest of the cwa, the front will cross
during the evening. Should be enough instability ahead of the
front across southern zones that a chance of thunder should be
in the forecast for Saturday afternoon into evening across srn
nh, with a threat of showers continuing across all but the ne
zones Sat night.

Sunday and Monday look cool and cloudy with a chance of
showers, and maybe some dz at times closer to the coast as
onshore flow persists into Monday morning. Highs Sunday will be
60-65 inland areas, and in the mid to upper 50s on the coast
with cloudy skies. Sunday will see clouds, spotty dz and the chc
of showers continue with lows mostly in the 40s, except low 50s
in SRN nh. Monday may see a little improvement away from the
coast, as the onshore flow weakens and flow aloft shift more
westerly. It still looks mainly cloudy, and there's a chance of
showers, with highs in the 60s, but closer to 70 in inland areas
of nh, but closer top 60 on the coast.

A decent 500 mb wave approaches Monday night and will cross the
region Tuesday, which should bring a front through and shift
the flow to nw. This should allow us to mix down the warmer
temps aloft around 10 c at 850 mb , which will push highs into
the 70s, to near 80 in the warmer spots. 500 mb ridging begins
to settle in during the middle of the week, with mainly dry and
warm conditions wed-thu.

Aviation 14z Thursday through Monday
Short term... GenerallyVFR conditions across the region. A few
patches of ifr lifr ongoing in the mountains as of 4am will lift
after sunrise. For coastal sites, expect a strong seabreeze this
afternoon. Friday will again byVFR but with continued west flow
keeping the seabreeze at bay.

Vfr conditions expected tonight through Thursday
night. However, there will be some patchy inland valley fog over
eastern areas tonight with localized MVFR or ifr conditions
along and near the penobscot river valley.

Long term...

mainlyVFR Friday night into sat. Expecting ifr CIGS to develop
sat night and likely linger thru Sunday into Sunday night.

Improvement to MVFR orVFR possible at inland terminals on
Monday.

Marine
Short term... Winds will be fairly calm today but we'll see
increasing southerly flow tonight as an east west pressure
gradient sets up across the region. This will result in gusts to
25kts on the outer waters with waves building to 5-7ft through
the midcoast and a small craft advisory has been issued.

Long term... Lingering SCA conds Fri night should diminish by
Saturday morning. May need another SCA in NE flow on Sunday.

Fire weather
The next two days will see generally hot and dry conditions.

Today min rh values will fall to 20-25% across the interior.

Along the coast a seabreeze will keep moist air in place.

While there will be good mixing the fairly weak upper level flow
should keep winds in the 15-20mph range- just below red flag
criteria. Nevertheless with 10-hr and 100-hr fuel moistures less
than 15% across portions of the area the dry conditions present
an increased risk for any fire activity and an sps has been
issued to highlight this across inland areas.

Friday will be similar to today with temperatures climbing even
warmer. West flow will dominate keeping a sea breeze at bay and
allowing the rh to fall to below 30% across much of the area.

This will put southern nh near red flag criteria and will need
to be watched for possible fire wx headlines.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... Small craft advisory from 11 pm this evening to 8 pm edt
Friday for anz150-152-154.

Jc


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WELM1 - 8419317 - Wells, ME 14 mi48 min S 8.9 G 11 55°F 51°F1020 hPa
WEXM1 - Wells Reserve, ME 14 mi66 min ESE 2.9 56°F 52°F
44030 - Buoy B0102 - Western Maine Shelf 26 mi122 min SE 7.8 G 9.7 53°F 54°F1 ft1017.9 hPa
BGXN3 - Great Bay Reserve, NH 27 mi81 min ESE 2.9 60°F 52°F
CASM1 - 8418150 - Portland, ME 32 mi48 min 51°F 50°F1020.1 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 34 mi76 min SE 5.8 G 7.8 50°F 51°F2 ft1019.7 hPa (+1.9)48°F
IOSN3 - Isle of Shoals, NH 34 mi66 min ESE 9.9 G 11 53°F 1019.3 hPa (+1.7)50°F

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sanford, Sanford Regional Airport, ME5 mi70 minVar 510.00 miOvercast57°F48°F72%1020.1 hPa
Rochester - Skyhaven Airport, NH14 mi75 minVar 31.50 miMostly Cloudy with Haze62°F52°F70%1018.6 hPa
Pease Air Force Base / Portsmouth, NH24 mi70 minESE 710.00 miMostly Cloudy58°F50°F74%1019.5 hPa

Wind History from SFM (wind in knots)
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Last 24hr6W7W9
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N8E11E7E4NE3CalmCalmSW3CalmCalmCalmCalmNE35E4
1 day agoSE53S6SW6SW5SW6CalmCalm3S4SW45SW5SW55SW6SW5SW3SW5CalmCalmNW4NW7N5
2 days ago56W10
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--W4W5CalmCalmSW3CalmCalmSW4CalmCalmCalmCalmE4NE3N3

Tide / Current Tables for Wells, Webhannet River, Maine
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Wells
Click for Map
Thu -- 01:25 AM EDT     0.34 feet Low Tide
Thu -- 02:54 AM EDT     Moonset
Thu -- 05:09 AM EDT     Sunrise
Thu -- 07:45 AM EDT     9.36 feet High Tide
Thu -- 01:53 PM EDT     -0.14 feet Low Tide
Thu -- 03:00 PM EDT     Moonrise
Thu -- 08:08 PM EDT     Sunset
Thu -- 08:21 PM EDT     9.68 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.50.40.51.63.55.87.89.19.38.56.74.21.90.3-0.10.52.24.46.88.79.69.58.26

Tide / Current Tables for Dover, Cocheco River, Piscataqua River, New Hampshire
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Dover
Click for Map
Thu -- 02:55 AM EDT     Moonset
Thu -- 03:05 AM EDT     0.47 feet Low Tide
Thu -- 05:11 AM EDT     Sunrise
Thu -- 09:25 AM EDT     7.40 feet High Tide
Thu -- 03:01 PM EDT     Moonrise
Thu -- 03:34 PM EDT     0.08 feet Low Tide
Thu -- 08:09 PM EDT     Sunset
Thu -- 10:03 PM EDT     7.60 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
42.310.50.823.65.36.77.37.36.34.72.71.20.20.212.54.467.27.67.2

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 (10,2,3,4)
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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.