Saturday, April20, 2019 L-36.com


Marine Weather and Tides
Waterford, CT

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 5:59AMSunset 7:35PM Saturday April 20, 2019 12:26 PM EDT (16:26 UTC) Moonrise 9:05PMMoonset 7:03AM 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
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ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 1208 Pm Edt Sat Apr 20 2019
.small craft advisory in effect until 6 pm edt this evening...
This afternoon..S winds 15 to 20 kt with occasional gusts up to 35 kt, diminishing to 10 to 15 kt with gusts up to 25 kt late. Seas 2 to 4 ft. Slight chance of tstms. Showers. Vsby 1 to 3 nm.
Tonight..S winds 10 to 15 kt with gusts up to 20 kt, becoming se 5 to 10 kt after midnight. Seas 2 to 3 ft. Showers likely, mainly in the evening.
Sun..SE winds 5 to 10 kt. Seas 2 to 3 ft. Chance of showers in the afternoon.
Sun night..S winds 5 to 10 kt, becoming nw after midnight. Seas 2 to 3 ft. Chance of showers.
Mon..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to 3 ft. Chance of showers.
Mon night..W winds 5 to 10 kt. Seas 2 to 3 ft. Chance of showers in the evening.
Tue..W winds 5 to 10 kt, becoming sw in the afternoon. Seas 2 to 3 ft.
Tue night..SW winds around 10 kt. Seas around 2 ft. Chance of showers.
Wed..NW winds 10 to 15 kt. Seas around 2 ft. Chance of showers in the morning.
Wed night..N winds 10 to 15 kt. Seas around 2 ft. Winds and seas higher in and near tstms.
ANZ300 1208 Pm Edt Sat Apr 20 2019
Synopsis for the long island waters and new york harbor.. Low pressure slowly approaches from the west. This slow moving system does not exit until the beginning of next week. A cold frontal passage is expected during the middle of next week.


7 Day Forecast for Marine Location Near Waterford, CT
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location: 41.36, -72.1     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 201509
afdokx
area forecast discussion
national weather service new york ny
1109 am edt Sat apr 20 2019

Synopsis
Low pressure slowly approaches from the west today. This slow
moving system does not exit until the beginning of next week. A
cold frontal passage is expected during the middle of next week.

Near term through tonight
A band of moderate to heavy rain extends north to south, and
will impact the area for the remainder of the morning. Several
high res models show this band shifting east, and weakening.

Some adjustments to pops and wx were made.

With inversion in place, thunder is due to elevated
instability, lifting over this low level cap.

Temps rise through the 60s, but any breaks could result in
higher readings away from the coast, and onshore flow.

Although there could be some lingering showers tngt,
particularly ERN li and ct, the core of the lljet will be E of
the area, taking the flood threat with it. No changes to the
timing of the watch have been made as a result.

Short term Sunday
The upr low will be making a slow approach on easter. With the
lljet pcpn east of the cwa, this could allow for a dry mrng. As
temps rise thru the day however, lapse rates will increase,
particularly west of the coastal areas. This could allow for
some isold-sct shwrs to develop. There is a high amount of
uncertainty though even at this short of a time range, as the
upr low track and embedded waves will be capable of producing
pcpn at any time if the dynamics are strong enough. As a result,
chance pops have been retained in the fcst. The superblend was
used for temps.

Long term Sunday night through Friday
Early in the period the upper level portion of the storm that
impacts the region in the near and short term portion of the
forecast will be over the region. Looking for a general shower
chance to begin the period with a closed upper level feature which
is progged to gradually fill, weaken, and lift out by Monday night.

Until then thought it best to keep general shower chance across much
of the cwa. With the upper level low over the area and some
instability present cannot rule out an isolated thunderstorm later
in the day on Monday, especially with any breaks of sun. In the wake
of the departing upper level system a brief period of soft ridging
will attempt to work in for late Monday night and into the day on
Tuesday. The thinking for Tuesday is to keep the region generally
dry with good agreement among the global models on timing.

The next system is progged to approach during Tuesday night and
early Wednesday. There could be enough energy aloft and enough low
level moisture to at least bring a period of chance showers to the
region for Tuesday night into Wednesday morning. There may be enough
instability depending on timing time of day on Wednesday that a
thunderstorm or thundershower cannot be ruled out. Most of the
modeling has been consistent with the timing of this feature, with
the german icon model having a few runs with precip hanging in for a
part of Thursday. This is at odds for the most part with the other
global deterministic models and mass fields, therefore will keep
Thursday dry for now with high pressure building in. Wpc discussion
does however point out uncertainty next week with individual
shortwaves tracking across the midwest into the northeast. This has
lead to variability among the various global ensemble suites. So
confidence is lower than desired for later next week. For now have
leaned towards high pressure being in control by late Wednesday or
Wednesday night through much of Friday as the naefs 500 mb forecast
suggests an increase in progression with the northern branch.

Aviation 15z Saturday through Wednesday
Low pressure slowly approaches from the west through this
evening. Widespread ifr MVFR ceilings and low-level wind shear
will continue into the early afternoon. Some improvement toVFR
is still anticipated this afternoon, but could be delayed a few
hours from forecast.

A strong low-level jet across the area will result in llws with
winds of 45 to 65 kt at 1500-2000 ft, strongest nyc and east. S
winds at the surface of 15-20kt with g25-35kt. Gusts may be less
frequent away from the coast.

Band of showers has pushed east of nyc terminals and will
continue moving across long island and southern connecticut
through early afternoon. This band of rain should be east of the
entire area by 21z, but few showers cannot be ruled out at any
location this afternoon and evening.

Outlook for 12z Sunday through Wednesday
Sunday-Monday MVFR or lower in a chance of showers.

Tuesday Vfr. Slight chance of showers late in the afternoon.

Wednesday MVFR or lower possible in showers.

Marine
A strong low level jet remains over the area waters today. There is
a relatively strong inversion over the waters preventing the
stronger winds from reaching the surface, however showers and
isolated thunderstorms could mix down some of the stronger
gusts. Gales continue for now. Once the showers end, most of
the stronger gusts will end, and scas will be needed, at least
for the ocean waters. While winds may be right around the 25kt
threshold, seas will remain rough through tonight.

Southerly flow diminishes tonight into Sunday as low pressure
weakens as it approaches the waters. With the diminished flow with
low pressure over the coastal waters a period of patchy fog may
occur for late tonight into early Sunday morning. Seas will remain
up on the ocean waters due to a south to southeasterly swell,
therefore SCA conditions will continue through the weekend and into
early next week on the ocean waters. Meanwhile, sub SCA conditions
are expected for the non-ocean waters through the early part of next
week. Sub SCA conditions may finally return by Tuesday afternoon on
the ocean waters as seas subside below 5 ft.

Hydrology
Additional rain should remain under an inch. The flood watch
remains in effect.

Otherwise, no hydrologic impacts are expected for the second
half of the weekend into the end of next week.

Tides coastal flooding
The coastal flood threat appears to be over for this event. The
only spot which may hit minor per the latest data would be the
freeport gage tngt. Since tides have been running a bit lower
than the model forecasts however, a statement will not be issued
attm.

Equipment
Nyc NOAA weather radio station kwo35 (162.55 mhz) remains off
the air.

Okx watches warnings advisories
Ct... Flash flood watch until 8 pm edt this evening for ctz006>008-
010>012.

Flash flood watch until 2 pm edt this afternoon for ctz005-009.

Ny... Flash flood watch until 8 pm edt this evening for nyz078>081.

Flash flood watch until 2 pm edt this afternoon for nyz067>075-
176>179.

Nj... Flash flood watch until 2 pm edt this afternoon for njz002-004-
006-103>108.

Marine... Gale warning until 2 pm edt this afternoon for anz330-335-338-
340-345-350-353-355.

Synopsis... 12
near term... 12 pw
short term... 12
long term... Je
aviation... Bc ds
marine... Bc pw
hydrology... 12
tides coastal flooding...

equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NLNC3 - 8461490 - New London, CT 1 mi57 min S 11 G 15 57°F 46°F1011.7 hPa
LDLC3 - New London Ledge CT - Ledge Light Weather 4 mi47 min S 20 G 22 56°F 1012.3 hPa55°F
MTKN6 - 8510560 - Montauk, NY 23 mi57 min 56°F 47°F1012.1 hPa
QPTR1 - 8454049 - Quonset Point, RI 40 mi57 min SSW 23 G 27 56°F 50°F1012.7 hPa
NWPR1 - 8452660 - Newport, RI 42 mi57 min S 20 G 24 57°F 45°F1012.6 hPa
NWHC3 - 8465705 - New Haven, CT 43 mi57 min S 18 G 25 61°F 52°F1010.3 hPa
NAXR1 - Narragansett Bay Reserve, RI 45 mi102 min SSW 11 58°F 1013 hPa58°F
PRUR1 45 mi57 min 59°F 59°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 45 mi57 min SW 12 G 19 60°F 1012.9 hPa
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 46 mi37 min S 16 G 19 54°F 46°F10 ft1011.8 hPa (+1.5)54°F
CPTR1 - 8452944 - Conimicut Light, RI 47 mi57 min S 19 G 24 57°F 52°F1012.8 hPa
FOXR1 - 8454000 - Providence, RI 48 mi53 min SSW 19 G 26 67°F 54°F1012.1 hPa
PVDR1 48 mi57 min S 26 G 30 63°F 1012.6 hPa61°F

Wind History for New London, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Groton / New London, Groton / New London Airport, CT3 mi31 minS 162.50 miFog/Mist58°F55°F93%1011.4 hPa
Westerly, Westerly State Airport, RI16 mi34 minS 101.25 miFog/Mist58°F57°F100%1012.4 hPa
Montauk, Montauk Airport, NY22 mi33 minS 7 G 16 mi58°F55°F93%1012.3 hPa
Chester, Chester Airport, CT22 mi32 minS 15 G 281.75 miRain64°F64°F100%1011.2 hPa

Wind History from GON (wind in knots)
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Last 24hrS15S13SW9S6SW8SW4S7S9S12S14S14S16S18S18S17S20S5SW8
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1 day agoE16
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CalmSW143SW9SW11SW8SW13SW13SW14
2 days agoS11SW11S9S13S12S12S10S8S5S5S5S5SE4CalmSE5SE5E5E8E9E9SE11SE13SE11SE10

Tide / Current Tables for New London, Connecticut
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New London
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Sat -- 04:59 AM EDT     -0.42 feet Low Tide
Sat -- 06:01 AM EDT     Sunrise
Sat -- 07:02 AM EDT     Moonset
Sat -- 10:54 AM EDT     2.90 feet High Tide
Sat -- 05:07 PM EDT     -0.09 feet Low Tide
Sat -- 07:33 PM EDT     Sunset
Sat -- 09:05 PM EDT     Moonrise
Sat -- 11:10 PM EDT     3.53 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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32.21.40.6-0.1-0.4-0.10.61.52.22.72.92.72.11.50.80.2-0.10.10.91.82.63.23.5

Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
Click for Map
Sat -- 12:34 AM EDT     -0.00 knots Slack
Sat -- 03:39 AM EDT     -4.19 knots Max Ebb
Sat -- 06:01 AM EDT     Sunrise
Sat -- 06:57 AM EDT     0.00 knots Slack
Sat -- 07:02 AM EDT     Moonset
Sat -- 09:47 AM EDT     3.55 knots Max Flood
Sat -- 01:04 PM EDT     -0.00 knots Slack
Sat -- 04:00 PM EDT     -3.71 knots Max Ebb
Sat -- 07:08 PM EDT     0.00 knots Slack
Sat -- 07:33 PM EDT     Sunset
Sat -- 09:04 PM EDT     Moonrise
Sat -- 10:03 PM EDT     3.59 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.1-0.9-2.7-4-4.1-3.3-1.80.123.23.531.80.1-1.7-3.2-3.7-3.2-2-0.31.633.63.2

Weather Map and Satellite Images
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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.
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Wind Forecast for New York City/Upton, NY (12,3,4,5)
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Ground Weather Radar Station Boston, MA
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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.