Thursday, March21, 2019 L-36.com


Marine Weather and Tides
Cumberland Center, 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 6:40AMSunset 6:55PM Thursday March 21, 2019 8:00 AM EDT (12:00 UTC) Moonrise 7:47PMMoonset 7:24AM Illumination 100% Phase: Full Moon; Moon at 15 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
    EDIT      (on/off)   Help
ANZ153 Casco Bay- 655 Am Edt Thu Mar 21 2019
.gale watch in effect from late tonight through Friday afternoon...
Today..S winds 5 to 15 kt, becoming 10 to 15 kt this afternoon. Gusts up to 25 kt. Seas 1 to 2 ft, building to 2 to 3 ft this afternoon.
Tonight..SE winds 10 to 15 kt, becoming E 10 to 20 kt after midnight. Seas 2 to 3 ft. A chance of rain in the evening, then rain after midnight with vsby 1 to 3 nm.
Fri..E winds 10 to 20 kt with gusts up to 35 kt, becoming ne 5 to 10 kt with gusts up to 20 kt in the afternoon. Seas 4 to 6 ft. Rain. Vsby 1 to 3 nm.
Fri night..W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of rain. Vsby 1 to 3 nm after midnight.
Sat..NW winds 10 to 20 kt, becoming 15 to 20 kt in the afternoon. Seas 3 to 5 ft. A chance of rain and snow showers in the morning with vsby 1 to 3 nm.
Sat night..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft, subsiding to 1 to 2 ft after midnight.
Sun..W winds 5 to 10 kt with gusts up to 20 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 to 2 ft.
Mon night..NW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft.
ANZ100 655 Am Edt Thu Mar 21 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure will move towards the mid atlantic region today. This system will intensify track north to the coast of maine on Friday. It will then slowly exit through the canadian maritimes this weekend. A cold front will cross the region Monday, followed by high pressure thereafter. &&


7 Day Forecast for Marine Location Near Cumberland Center, ME
   Hourly   EDIT   Help
location: 43.76, -70.25     debug


Area Discussion for - Gray/Portland, ME
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kgyx 211100
afdgyx
area forecast discussion
national weather service gray me
700 am edt Thu mar 21 2019

Synopsis
An offshore high will circulate mild air into the region today.

Low pressure moving up from the carolinas will track north to
coastal maine on Friday, spreading rain across new hampshire
and maine, with snow and mixed precipitation in the higher
terrain. While the low moves off to the northeast on Saturday,
some lingering snow and rain showers are likely. High pressure
builds by to our south on Sunday. A cold front will drop south
across the area Monday with chilly, but dry conditions through
midweek.

Near term until 6 pm this evening
Update...

have updated the forecast based on latest set of mesoscale
models and observations. Latest radar imagery showing some light
echoes over new hampshire early this morning. However, this
precipitation does not appear to be reaching the ground.

Have increased pops for the midday and afternoon hours in new
hampshire however as latest mesoscale models do bring in light,
measureable precipitation to the region. Have also made minor
adjustments to temperatures and dew points over the next few
hours based on latest observational trends.

Prev disc...

any early morning sunshine will lead to thickening
and lowering of cloud cover today. Warm air advection will lead
to temperatures in the 40s once again.

Latest mesoscale models suggest precipitation from the
approaching coastal low over the mid atlantic region will be
delayed. Therefore, have lowered pops in coordination with
adjacent offices to hold off until this evening.

Short term 6 pm this evening through 6 pm Friday
Cyclogenesis continues as low pressure moves up the new jersey
coastline tonight. With warm air near the boundary layer and max
temperatures creeping up aloft to 0c or higher, precipitation
types will be a challenging forecast for tonight into early
Friday. For the most part, rain is expected over southern areas.

This will transition to mixed precipitation over central and
even more so, northern areas and the high terrain.

Accumulating snows will mainly be confined to the northern
mountains and foothills. Still, this precipitation will likely
mix with or change to sleet and possibly some freezing rain late
tonight and early Friday morning. Confidence levels remain
relatively low that snowfall outside the elevated terrain below
2500 feet will reach advisory criteria. Confidence levels also
remain relatively low of the chance of freezing rain so late in
the season. For these reasons, will hold off on winter weather
advisory headlines at this time.

The precipitation will mainly be in the form of rain Friday
afternoon, before the approach of the upper level low pressure
system and lowering heights pivot across northern areas late in
the day. With dynamic cooling aloft, this sets the stage for the
extended portion of the forecast when the precipitation begins
to change to snow shower activity.

Long term Friday night through Wednesday
500 mb pattern across noam looks to start changing during the
extended, or at least, +pna pattern gets disrupted as closed low
over the ERN pacific continues to spit waves onshore along the
west coast. This, at least starts to lower the amplitude of the
ridge trough couplet over noam, if not get rid of it
completely. The continued up and temps should continue, with
generally weaker systems after Friday Saturday.

Fri night will see the cold air start to work in behind the
system, but slowing of sfc low as it begins to line up with 500
mb low may slow the mid level cold air from moving in quickly.

There should be a surge of precip, especially over the nrn, and
maybe WRN zones, as the mid lvl low closes off as well. So, this
may be provide enough dynamics to overcome the marginal cold mid
lvls for wet snow up north and allow for a few inches even in
the mtns valleys Fri night, with a few inches possible in the
hills of WRN nh as well especially at the higher elevations .

The higher elevations, say above 3000 ft could see snowfall
amts approaching double digits Fri night into Sat morn. In the
foothills, may see an inch or so, while the coastal plain and
in SRN nh could see a coating in spots late Friday night as any
precip winds down. Lows range from the mid-uppr 20s in the north
to the low 30s in the south.

On Saturday, the mtns snow start to lose dynamics from aloft,
and transition to more upslope shsn, but addl accums are
possible in the morning. Elsewhere, weak CAA in the morning will
keep clouds around, but downslope should bring at least some
breaks of Sun in the afternoon. It's interesting to note that
5-6 days ago models were bringing -15c and below air into the
region this weekend, which has backed off to a quick shot of -5
to -8c air. Such is the way models, especially in the transition
seasons. Highs on Sat range from the mid 30s to low 40s.

Sunday looks mainly sunny and milder with highs in the low 40s
to low 50s N to S as the highs moves offshore and warmer return
flow begins. Cold front on Monday starting to show some signs
of producing some showers, but will just keep the mentionable
pops in the mtns, and go slt chc elsewhere, as there's till time
to see how the models shake this out. Cold air moves in for
tue- wed, and while the models are showing quite cold 850 mb
temps, I refer to you the comment above about cold air
intrusions in the transition seasons. It will turn colder in
this period, and run below normal, but maybe not quite as cold
as the op runs would say.

Aviation 12z Thursday through Monday
Short term... Conditions begin to lower to areas of ifr tonight
as rain and mixed precipitation develop and continue into Friday
for most areas. This will most likely occur during the 02z to
08z time period as the precipitation spreads from west to east
across the forecast area. The mixed precipitation will mainly be
in the northern half of maine and new hampshire with snow,
sleet, freezing rain and possibly rain expected.

Long term... Ifr or lower Fri night should improve to MVFR sat
morning andVFR by Sat afternoon. NW wind gusts of 25 kts or so
are possible Saturday.VFR is expected Sat night through
Monday.

Marine
Short term... Winds increase ahead of our upcoming coastal low
tonight into early Friday. There is still a possibility that
gale force gusts may reach the waters during this period,
however confidence is not high. Therefore, the gale watch
headline will remain in effect.

Long term... Will likely need gales, especially outside the
bays, late Friday night into Saturday evening, with SCA wind
continuing into early Sunday.

Hydrology
Warming temperatures and upcoming rainfall may be sufficient
runoff to cause rises on rivers and streams. This raises the
possibility of ice to begin to break up. It is possible that
there could be localized ice jams.

Tides coastal flooding
Winds and seas begin to build right around the time of high tide
tonight. However, the vast majority of increased storm surge of
around a foot will occur around or shortly before the time of
the midday high tide on Friday. With high astronomical tides
already in place, minor coastal flooding is possible from
portland and points south during this tidal cycle.

Building nearshore waves of around 10+ feet in some areas may
allow for localized splash-over during this tide as well.

00z wave models suggest long period waves arrive Friday night
into Saturday. Therefore, with high astronomical tides still in
place, there is the possibility for beach erosion and splash-
over to continue for subsequent tides. This additional splash-
over has been indicated in wave run-up output.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... Gale watch from late tonight through Friday afternoon for
anz150>154.

Jc


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 7 mi31 min 37°F 37°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 17 mi71 min SSW 14 G 18 38°F 37°F3 ft1024.1 hPa (+0.0)34°F
WEXM1 - Wells Reserve, ME 33 mi61 min SSW 4.1 31°F 26°F
WELM1 - 8419317 - Wells, ME 35 mi31 min Calm G 1.9 31°F 37°F1024.9 hPa
44030 - Buoy B0102 - Western Maine Shelf 41 mi57 min SSW 7.8 G 9.7 38°F 38°F2 ft1024.5 hPa
44032 - Buoy E0104 - Central Maine Shelf 48 mi117 min SSW 12 G 16 38°F 37°F4 ft1023.5 hPa

Wind History for Wells, ME
(wind in knots)    EDIT      (on/off)   Help
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last
24hr
N1
--
S3
SE5
S9
S13
S11
S12
G15
S11
S12
G15
SW9
S7
S5
S7
SW3
--
SW3
G6
W4
G8
SW4
S4
S3
SW3
SW1
S1
1 day
ago
N2
N4
G7
E1
SE7
SE7
S11
S8
G11
E5
S9
SE7
G10
E1
G5
NW7
G12
NW7
G10
NW3
N1
NW2
N2
W2
NW1
N1
N3
N2
N1
N2
2 days
ago
W4
G9
NW8
G12
NW10
G20
NW10
G15
NW11
G19
NW17
G22
W9
G17
W7
G16
NW10
G16
NW14
G17
NW11
G16
NW6
G11
NW1
SW1
N2
--
NW1
N2
NW2
NW3
N2
N4
N4
N3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Jetport, ME8 mi70 minS 310.00 miPartly Cloudy33°F26°F75%1024.2 hPa
Auburn-Lewiston, ME20 mi65 minN 010.00 miFair26°F24°F92%1024.8 hPa

Wind History from PWM (wind in knots)
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last 24hrCalmS7S7S7S9S11SE12S14S10
G18
S9S6S5S6S7S6SW4CalmCalmS3S5S6S3S3S5
1 day agoCalmCalmE5NE4E7S7S9S9SE8SE6E4NW6NW4CalmW4CalmCalmW3CalmCalmCalmCalmW3Calm
2 days agoW10NW8NW11NW7W9W7
G16
W14W13
G19
W12W14
G20
W10W4CalmCalmN3CalmCalmW4W3CalmCalmW3W5NW3

Tide / Current Tables for Falmouth Foreside, Maine
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Falmouth Foreside
Click for Map
Thu -- 05:49 AM EDT     -1.51 feet Low Tide
Thu -- 06:42 AM EDT     Sunrise
Thu -- 07:22 AM EDT     Moonset
Thu -- 12:06 PM EDT     11.38 feet High Tide
Thu -- 06:17 PM EDT     -1.71 feet Low Tide
Thu -- 06:54 PM EDT     Sunset
Thu -- 07:47 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
10.89.77.241-1-1.5-0.425.28.310.511.410.88.75.62.2-0.4-1.6-1.30.53.56.89.4

Tide / Current Tables for Long Island, Maine
   EDIT      (on/off)   Help   One Week of Data
Long Island
Click for Map
Thu -- 05:49 AM EDT     -1.47 feet Low Tide
Thu -- 06:42 AM EDT     Sunrise
Thu -- 07:22 AM EDT     Moonset
Thu -- 12:04 PM EDT     11.38 feet High Tide
Thu -- 06:17 PM EDT     -1.66 feet Low Tide
Thu -- 06:54 PM EDT     Sunset
Thu -- 07:47 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
10.89.67.241-0.9-1.4-0.42.15.38.410.611.410.78.75.52.2-0.4-1.6-1.30.63.66.89.5

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    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.
Link to Loop

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

Ground Weather Radar Station Portland, ME
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.