Saturday, August17, 2019 L-36.com


Marine Weather and Tides
Groton Long Point, CT

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:58AMSunset 7:46PM Saturday August 17, 2019 12:51 PM EDT (16:51 UTC) Moonrise 9:10PMMoonset 7:45AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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
ANZ237 Block Island Sound- 935 Am Edt Sat Aug 17 2019
This afternoon..E winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A slight chance of showers with isolated tstms early with vsby 1 nm or less.
Tonight..E winds around 5 kt, becoming nw after midnight. Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 nm.
Sun..SW winds around 5 kt, becoming S in the afternoon. Seas 2 to 4 ft.
Sun night..S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 nm.
Mon..SW winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog.
Mon night..SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
Tue through Wed..SW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 935 Am Edt Sat Aug 17 2019
Synopsis for massachusetts and rhode island coastal waters.. A weak ridge of high pressure across the region will result in light east to southeast winds today and into early Sunday. Winds will turn by Monday and through early next week as high pressure strengthens well to the southeast over the atlantic. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the current hazards link above the map on the left.


7 Day Forecast for Marine Location Near Groton Long Point , CT
   Hourly   EDIT   Help
location: 41.3, -71.99     debug


Area Discussion for - New York City/Upton, NY
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kokx 171618
afdokx
area forecast discussion
national weather service new york ny
1218 pm edt Sat aug 17 2019

Synopsis
A frontal boundary remains stalled to the south of the region with
high pressure to the northeast. A trough of low pressure will
develop to the west on Sunday followed by a weak cold front Monday
night. This boundary dissipates over the area on Tuesday, although
another cold front approaches Wednesday and moves through Wednesday
night. High pressure then builds in for the remainder of the
week.

Near term through tonight
Highest coverage of showers remains over eastern locations. A
shower or thunderstorm could develop at anytime this afternoon
across the region. Much of the area now observing sunshine. Any
lingering low clouds across the region are expected to lift and
dissipate as the afternoon progresses given time of year.

A slight increase in coverage of showers and thunderstorms is
expected, especially NW locations, late this afternoon and
evening closer to upper shortwave, increased lift. As
instability wanes, thunder chances will lower overnight.

Temperatures, except eastern LI and SE ct under ovc skies, have
risen to the upper 70s lower 80s.

With plenty of clouds tonight and continued light onshore flow,
temps will not vary much, upper 60s to lower mid 70s.

There is a moderate risk for the development of rip currents at
atlantic ocean beaches this afternoon and into this evening.

Short term Sunday through Sunday night
A stationary front will remain just to the south of the region for
the second half of the weekend with high pressure building to the
south and west. This will result in a hot and humid air mass
building into the start of next week, as southwest flow returns. On
Sunday, temperatures across northeast nj will touch 90 with highs
across nyc metro in the upper 80s, with cooler temps along the
coast. MAX heat index values will be in the a few degrees higher
than the air temperature.

Scattered showers and thunderstorms may develop once again Sunday
afternoon as a trough sets up west of nyc. Overnight low
temperatures will be in the in the low to mid 70s, which is
about 5 to 7 degrees above normal.

There is a low risk for the development of rip currents at atlantic
ocean beaches Sunday.

Long term Monday through Friday
Hot, humid and somewhat unsettled weather will continue for the
first half of next week. Nwp is in good agreement with the overall
upper pattern across north america during the long term period, with
bermuda high pressure remaining in place resulting in gradually
rising heights rising across the northeast into early next week.

Currently, the hottest day appears to be Monday with widespread
upper 80s to lower 90s, mid 90s in urban NE nj. Dewpoints in the 70s
will yield heat index values in the mid to upper 90s, possibly
reaching 100 in NE nj. With heat index values forecast to remain
below 95 both Sunday and Tuesday, it looks that we will remain below
heat advisory criteria, but it will be something to watch with
subsequent updates.

A weak cold front approaching on Mon could then trigger isolated
showers storms Mon aftn eve. This boundary moves into the area mon
night so have kept the low chc during this time although tstms may
be nil.

It dissipates over the area on Tue although a shortwave lifting up
the east coast and a digging trough to the west is expected to
trigger additional showers and tstms on wed. The former piece of
energy may pass far enough east to keep that activity offshore, but
pre-frontal convection is possible during the aftn eve. This
stronger front moves through Wed night bringing and end to the
showers tstms and a more comfortable airmass as high pres builds
from the great lakes through fri. Temps are expected to be near to
slightly below normal levels Thu and fri.

Aviation 16z Saturday through Wednesday
High pressure east of the new england coast will remain in
control through the weekend.

Improving flight categories expected late this morning into
afternoon, however the degree of improvement and timing are
only with moderate confidence at most. Categories may fluctuate
back and forth to mostlyVFR MVFR at most terminals, but are
more likely to remain belowVFR at kgon and possibly kisp and
kbdr as well. There is a low chance of a thunderstorm
developing.

Winds shift E to SE this afternoon, remaining mostly 5-10 kt.

Outlook for 12z Sunday through Wednesday
Sunday Chance of mainly afternoon and evening showers and
thunderstorms. Best chance north and west of the nyc terminals.

MVFR ifr ceilings improving through the morning.

Monday MainlyVFR. Slight chance shower or thunderstorm.

Tuesday-Wednesday MainlyVFR. Chance showers or
thunderstorms.

Marine
A generally weak pressure gradient will keep seas below 5 ft into
the early week. Winds and ocean seas then begin to increase by
Wednesday in advance of a cold front, with seas reaching SCA levels
by Wednesday night.

Hydrology
No hydrologic impacts are expected at this time through the forecast
period.

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

Okx watches warnings advisories
Ct... None.

Ny... None.

Nj... None.

Marine... None.

Synopsis... CB 24
near term... Pw
short term... Cb
long term... CB 24
aviation... Jc md dw
marine... CB 24 pw
hydrology... CB 24
equipment...



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
LDLC3 - New London Ledge CT - Ledge Light Weather 5 mi37 min E 15 G 16 69°F 1001.5 hPa68°F
NLNC3 - 8461490 - New London, CT 7 mi52 min E 5.1 G 7 73°F 69°F1017.3 hPa (+0.0)
MTKN6 - 8510560 - Montauk, NY 17 mi52 min 72°F 69°F1017.4 hPa (+0.0)
QPTR1 - 8454049 - Quonset Point, RI 37 mi58 min ESE 4.1 G 5.1 73°F 72°F1018.4 hPa
NWPR1 - 8452660 - Newport, RI 38 mi58 min ESE 6 G 11 71°F 66°F1018.2 hPa
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 42 mi32 min E 7.8 G 9.7 74°F 1016.9 hPa73°F
NAXR1 - Narragansett Bay Reserve, RI 42 mi67 min ESE 2.9 75°F 1018 hPa71°F
PRUR1 42 mi52 min 74°F 71°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 42 mi52 min E 2.9 G 5.1 74°F 1018.7 hPa (+0.3)
CPTR1 - 8452944 - Conimicut Light, RI 45 mi52 min S 6 G 7 73°F 74°F1018.2 hPa (+0.4)
FOXR1 - 8454000 - Providence, RI 47 mi52 min S 8.9 G 12 75°F 73°F1018 hPa (+0.0)

Wind History for New London, CT
(wind in knots)    EDIT      (on/off)   Help
-12
PM
-12
PM
-12
PM
-12
PM
-12
PM
-12
PM
-12
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
12
PM
Last
24hr
SE2
G5
SE5
SE3
G7
SE4
G8
E3
SE4
E3
--
NE3
NE2
E5
NE2
NE1
E3
--
E4
E5
1 day
ago
2 days
ago
S11
G15
S5
G8
S5
G8
S2
G5
S6
S5
SE3
G6
S2
SE1
G4
E1
E2
E2
S1
--
E1
--
N4
N4
N4
G7
N6
G9
N6
N3
S4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Groton / New London, Groton / New London Airport, CT4 mi1.9 hrsE 87.00 miLight Rain74°F69°F85%1017.5 hPa
Westerly, Westerly State Airport, RI11 mi2 hrsE 510.00 miLight Rain74°F72°F94%1018 hPa
Montauk, Montauk Airport, NY16 mi2 hrsENE 8 mi72°F68°F87%1017.7 hPa
Block Island State Airport, RI23 mi1.9 hrsE 73.00 miFog/Mist0°F0°F%1018.3 hPa

Link to 5 minute data for KGON

Wind History from GON (wind in knots)
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
12
PM
Last 24hrSE9S7S9SE10SE6SE5SE6E6SE6SE6--E4----E5NE4--NE5NE5NE3E6E6E8E9
1 day agoSE9SE10SE12SE11SE11----E6E5--E7NE4NE4--N3--NE5N4NE3--NE3E6--SE12
2 days agoS9S5SE6S4S4SE8E3SE6E7E3SE4E4SE4E3SE4CalmNE3N4N8N5N7E4SE7SE5

Tide / Current Tables for Noank, Mystic River entrance, Connecticut
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Noank
Click for Map
Sat -- 05:28 AM EDT     0.25 feet Low Tide
Sat -- 05:58 AM EDT     Sunrise
Sat -- 07:45 AM EDT     Moonset
Sat -- 11:04 AM EDT     2.45 feet High Tide
Sat -- 05:43 PM EDT     0.44 feet Low Tide
Sat -- 07:44 PM EDT     Sunset
Sat -- 09:09 PM EDT     Moonrise
Sat -- 11:14 PM EDT     2.58 feet High Tide
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
2.421.51.10.60.30.30.81.41.92.32.42.321.61.20.90.50.50.81.422.42.6

Tide / Current Tables for The Race, Long Island Sound, New York Current (2) (expired 1993-12-31)
   EDIT      (on/off)   Help   One Week of Data
The Race
Click for Map
Sat -- 01:10 AM EDT     -0.01 knots Slack
Sat -- 04:39 AM EDT     -3.36 knots Max Ebb
Sat -- 05:59 AM EDT     Sunrise
Sat -- 07:45 AM EDT     Moonset
Sat -- 07:53 AM EDT     0.01 knots Slack
Sat -- 10:32 AM EDT     2.77 knots Max Flood
Sat -- 01:37 PM EDT     -0.01 knots Slack
Sat -- 05:00 PM EDT     -3.05 knots Max Ebb
Sat -- 07:44 PM EDT     Sunset
Sat -- 08:07 PM EDT     0.01 knots Slack
Sat -- 09:09 PM EDT     Moonrise
Sat -- 10:45 PM EDT     2.62 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
1.70.3-1.3-2.4-3.2-3.3-2.5-1.20.21.72.72.72.21-0.6-1.9-2.7-3.1-2.6-1.5-0.21.22.42.6

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 New York City/Upton, NY (12,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Boston, MA
   (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.