Saturday, April20, 2019 L-36.com


Marine Weather and Tides
Cape Neddick, 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 5:51AMSunset 7:32PM Saturday April 20, 2019 12:16 PM EDT (16:16 UTC) Moonrise 9:02PMMoonset 6:54AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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
ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 930 Am Edt Sat Apr 20 2019
.small craft advisory in effect until 6 pm edt this evening...
Today..S winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. Showers likely. Patchy fog. Vsby 1 to 3 nm.
Tonight..S winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 5 to 8 ft. Showers likely. Patchy fog. Vsby 1 to 3 nm.
Sun..S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. Patchy fog in the morning. A chance of showers. Vsby 1 to 3 nm in the morning.
Sun night..SE winds 5 to 10 kt. Seas 4 to 6 ft. A chance of showers.
Mon..NE winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers.
Mon night..SE winds 5 to 10 kt with gusts up to 20 kt, becoming W after midnight. Seas 3 to 5 ft. A chance of showers.
Tue..N winds around 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.
Tue night..E winds around 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.
Wed..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers.
Wed night..N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft.
ANZ100 930 Am Edt Sat Apr 20 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. A warm front will remain north of the waters through today. A cold front will cross the area tonight. A weak low will develop south of new england Sunday night and move into southern new england on Monday. It then shifts northeast across the gulf of maine Monday night, before exiting the region on Tuesday. Another system crosses the area Wednesday. &&


7 Day Forecast for Marine Location Near Cape Neddick, ME
   Hourly   EDIT   Help
location: 43.16, -70.59     debug


Area Discussion for - Gray/Portland, ME
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kgyx 201351
afdgyx
area forecast discussion
national weather service gray me
951 am edt Sat apr 20 2019

Synopsis
A moist southerly flow ahead of a slow-moving cold front will
produce showers and locally heavy rainfall across the region
through early Sunday. The cold front will move through on
Sunday and bring somewhat drier conditions. Unfortunately... Low
pressure will meander nearby through the first half of the new
work week keeping unsettled weather in place across northern
new england.

Near term until 6 pm this evening
Update...

Heavy showers will continue to spread north through new
hampshire and western maine late this morning...

have updated the forecast based on current observations and
latest mesoscale models. Heavy showers will continue to spread
north through new hampshire and western maine during the mid and
late morning hours per latest radar images. This will allow for
additional rises on rivers and streams in the region that are
already high due to the very warm temperatures and melting snow
over southern and central areas.

Have added patchy fog through the midday hours for portions of
the coastline. Made adjustments to temperatures as a strong
frontal system remains over northern portions of the forecast
area.

Prev disc...

615 am... Minor estf update to reflect current
mesonet temperatures in near term grids.

Prev disc...

at 06z... A 994 millibar low was over west virginia with a
stationary front extending northward through northern new
hampshire and into the western maine mountains and eastern
maine. A trailing cold front extended southward through the
southern appalachians. An upper trough was evident in the goes
water vapor imagery extending from the great lakes southward
into the gulf of mexico. For today... The weakening surface low
will meander north into upstate new york by evening. The surface
boundary across our northern and eastern zones should remain
more or less stationary. Ahead of this system a plume of
precipitable water with values near 1.5 inches will continue to
be advected northward into the area. Bands of showers will
spread east across the entire area this morning with isolated
thunder possible as well. The rich moisture plume will produce
locally heavy rainfall today. With much of the area in the warm
sector we'll see the rapid snowmelt continue today. The snowmelt
combined with rainfall will help nudge rivers levels higher
today. High temperatures will range from the lower 70s across
southern new hampshire and adjacent interior southwest maine to
only upper 40s and lower 50s across portions of the western
maine mountains that remain stuck on the cold side of the
stationary boundary.

Short term 6 pm this evening through 6 pm Sunday
Tonight the plume of high precipitable water and surface cold
front will translate eastward and offshore with widespread showers
tapering to scattered showers from west-to-east overnight as a
result. Lows will range from the mid 40s to lower 50s. The
front will stall just offshore on Sunday as it will be nearly
parallel to the upper flow. As a result we'll see a mostly
cloudy day along with scattered showers. It'll be a less humid
day but still quite mild with high temperatures mainly in the
60s.

Long term Sunday night through Friday
The trend in the 500 mb across noam will be for a flatter flow
by mid-late week and into next weekend, at least according to
the 00z euro. However, not sure much faith can be put into the
models beyond days 3 or 4 at this point, given their run-to-run
fluctuations, and that they are dealing with 500 mb closed lows
earlier in their the period. Overall, a fairly unsettled period
from Sun night through wed, with another chc for precip Fri or
sat. Again, feel that temps don;t stray to far from normal but
will be on both sides of that line thru the period. Mins will
probably tend to be above normal given the unsettled nature of
the forecast with clouds and precip.

Sun night finds the CWA in some ridging aloft as 500 mb closed
low meanders N and E out of the mid -atlantic. It could be a
dry, but mainly cloudy overnight, although pops increase toward
daybreak as sfc low forms S of CAPE cod and begins to move n.

Lows will generally be in the 40s, low 40s N and close to 50 in
the s.

Expecting a round of showers, or potentially even a period of
rain Monday as the sfc low shifts from near CAPE cad back to
the NW over WRN new england as it stack up beneath closed low
aloft. The whole system becomes less dynamic as he day
progresses, but the threat of rain will be there thru the day
with lots of clouds. I undercut model consensus highs by a bit
given all the clouds and the possible NE or onshore flow, but
still fairly warm aloft, with highs in the upper 50s to mid
60s. Any prolonged period of Sun could push maxes up a bit
higher the this.

The closed low aloft gets picked up by 500 mb troughing
approaching from the west Mon night and shifts E on Tuesday, and
this will keep a threat of showers in the forecast, but that low
should shift far enough E to lower the chc of showers late in
the day. A clipper type low crosses the area wed, with another
round of showers or a steadier rain expected. If there's a
little bit of confidence in a dry day, at this point it would be
Thursday, with another system moving in Fri or sat.

Aviation 14z Saturday through Wednesday
Short term through Sunday ... MVFR with areas of ifr in shra,
and patchy drizzle and fog today with isold -tsra possible.

Widespread ifr tonight in drizzle and fog as steadier showers
end from west to east. Conditions improving to MVFR on Sunday
with sct -shra.

Long term... MVFR-vfr expected Sun night, with MVFR, and possible
ifr at times on Monday into Monday night with shra. Will
probably see some variableVFR-MVFR Tue and Tue night, with a
better chc of prolonged and more widespread flight restrictions
during the day wed.

Marine
Short term through Sunday ... Southerly flow will keep sca
conditions in the forecast through at least today. Seas will be
slow to come down, and the SCA that is currently in effect will
likely need to be extended as least through tonight outside the
bays.

Long term... Seas will remain above SCA levels Sun night into
Monday as sfc low develops S of CAPE cpd and moves n, although
winds will likely stay blow SCA levels. Winds seas expected to
be blo SCA tue-wed.

Hydrology
The question is where will the axis of heavy rain be located.

The front is settling slowly south into far northern new
hampshire and the maine mountains and will bisect the area today
and into tonight. The exact location of this front will have a
big impact on precipitation amounts as well as temperatures and
snow melt. Currently we are anticipating a 1 to 2 inch rainfall.

This will certainly be enough to bring many rivers to minor
flood stage when combined with snowmelt. Moderate flooding at a
few locations can't be ruled out as well.

Tides coastal flooding
High astronomical tides this weekend will combine with a
prolonged onshore southerly flow to potentially lead to minor
beach erosion and splashover. Minor coastal flooding is also
possible. Any impact would likely occur tonight around the time
of the 1 am Sunday high tide.

Gyx watches warnings advisories
Me... Flood watch through Sunday afternoon for mez007>009-012>014-
019>022-024>028.

Nh... Flood watch through Sunday afternoon for nhz001>009-011.

Marine... Small craft advisory until 6 pm edt this evening for
anz150>154.

Cannon


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
44030 - Buoy B0102 - Western Maine Shelf 9 mi72 min S 14 G 18 47°F 42°F6 ft1011.8 hPa
WEXM1 - Wells Reserve, ME 12 mi76 min S 8 52°F 52°F
IOSN3 - Isle of Shoals, NH 13 mi76 min SSW 22 G 24 57°F 1012.1 hPa (+3.0)57°F
BGXN3 - Great Bay Reserve, NH 15 mi91 min SSW 7 70°F 1013 hPa64°F
44098 - Jeffrey's Ledge, NH (160) 34 mi158 min 41°F5 ft
44007 - PORTLAND 12 NM Southeast of Portland,ME 35 mi26 min S 14 G 16 47°F 41°F6 ft1012.2 hPa (+2.3)47°F
CASM1 - 8418150 - Portland, ME 39 mi46 min 52°F 42°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 44 mi72 min SSW 5.8 G 7.8 49°F 42°F5 ft1012 hPa

Wind History for Wells, ME
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pease Air Force Base / Portsmouth, NH13 mi80 minS 9 G 162.00 miHeavy Rain Fog/Mist68°F63°F84%1012 hPa
Sanford, Sanford Regional Airport, ME18 mi20 minSSW 78.00 miRain66°F64°F93%1013.2 hPa
Rochester - Skyhaven Airport, NH19 mi25 minVar 30.75 miHeavy Rain Fog/Mist66°F66°F100%1012.1 hPa

Wind History from PSM (wind in knots)
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
9
AM
10
AM
11
AM
Last 24hrSW10
G17
SW13
G22
SW14
G21
SW12
G20
SW11
G22
S18
G27
SW14
G22
S12
G20
S12SW11
G22
S11
G17
S11S12
G20
S12
G18
S10S11
G18
S13S11
G22
S9S10S11--S10
G15
S9
G16
1 day agoS11
G18
SE11SE11SE13
G18
SE12SE11SE9SE8SE9E4CalmCalmNW4NW3CalmN3CalmCalmCalmCalmCalmSE4--SW14
G24
2 days agoW7NE10NW9SE9SE11SE11SE10SE8SE8SE7E4Calm----SE6SE6SE4S4CalmCalmSE4--SE5SE9

Tide / Current Tables for York Harbor, Maine
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
York Harbor
Click for Map
Sat -- 12:12 AM EDT     10.73 feet High Tide
Sat -- 05:52 AM EDT     Sunrise
Sat -- 06:38 AM EDT     -1.47 feet Low Tide
Sat -- 06:53 AM EDT     Moonset
Sat -- 12:43 PM EDT     10.18 feet High Tide
Sat -- 06:55 PM EDT     -0.75 feet Low Tide
Sat -- 07:30 PM EDT     Sunset
Sat -- 09:02 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
10.710.38.662.90.3-1.2-1.4-0.12.55.58.29.810.19.174.21.6-0.2-0.70.12.35.38.1

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
   EDIT      (on/off)   Help   One Week of Data
Portsmouth Harbor Entrance
Click for Map
Sat -- 01:56 AM EDT     -0.00 knots Slack
Sat -- 04:47 AM EDT     -2.39 knots Max Ebb
Sat -- 05:53 AM EDT     Sunrise
Sat -- 06:54 AM EDT     Moonset
Sat -- 08:31 AM EDT     0.00 knots Slack
Sat -- 10:39 AM EDT     1.53 knots Max Flood
Sat -- 02:19 PM EDT     -0.00 knots Slack
Sat -- 05:06 PM EDT     -2.26 knots Max Ebb
Sat -- 07:31 PM EDT     Sunset
Sat -- 08:46 PM EDT     0.01 knots Slack
Sat -- 09:02 PM EDT     Moonrise
Sat -- 10:59 PM EDT     1.66 knots Max Flood
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
1.30.9-0.1-1.3-2.2-2.4-2.1-1.6-0.70.61.41.51.310.3-0.8-1.9-2.3-2.1-1.7-0.90.31.31.7

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 (12,3,4,5)
      (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.