Sunday, May26, 2019 L-36.com


Marine Weather and Tides
Orleans, MA

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 5:10AMSunset 8:05PM Sunday May 26, 2019 5:27 AM EDT (09:27 UTC) Moonrise 1:33AMMoonset 12:07PM Illumination 51% Phase: Third Quarter Moon; Moon at 22 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
ANZ254 Coastal Waters From Provincetown Ma To Chatham Ma To Nantucket Ma Out 20 Nm- 358 Am Edt Sun May 26 2019
.small craft advisory in effect until 3 pm edt this afternoon...
Today..SW winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt this afternoon. Seas 5 to 6 ft. A chance of showers with isolated tstms this morning.
Tonight..W winds 5 to 10 kt, becoming nw after midnight. Seas around 4 ft.
Mon..NE winds 5 to 10 kt. Seas around 3 ft.
Mon night..SE winds around 5 kt, becoming N after midnight. Seas around 3 ft.
Tue..NE winds 5 to 10 kt, becoming se in the afternoon. Seas around 3 ft. A chance of showers in the afternoon.
Tue night..SE winds 5 to 10 kt. Seas around 3 ft. Showers likely.
Wed..S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Showers likely, mainly in the morning.
Wed night..S winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 nm.
Thu..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. A chance of showers.
Thu night..W winds 10 to 15 kt with gusts up to 20 kt. Seas around 5 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 358 Am Edt Sun May 26 2019
Synopsis for massachusetts and rhode island coastal waters.. A weak cold front moves across the waters late today and this evening. High pres builds across the waters Mon, with another cold front moving south of the waters Mon night. High pres moves east of the waters Tue as the front approaches new eng as a warm front. Weak low pres tracks along the front south of new eng Tue night into Wed. A cold front approaches new eng Thu. 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 Orleans CDP, MA
   Hourly   EDIT   Help
location: 41.77, -69.94     debug


Area Discussion for - Boston, MA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kbox 260823
afdbox
area forecast discussion
national weather service boston norton ma
423 am edt Sun may 26 2019

Synopsis
A taste of summertime heat today with a low risk for an
isolated late afternoon thunderstorm south of the pike. A cold
front moves south of the coast tonight followed by high pressure
building in through Monday, then shifting off the coast early
Tuesday. A few weak lows will move along a wavering front across
the region late Tuesday into Thursday, bringing the threat for
showers. Milder temperatures move in during Thursday ahead of an
approaching cold front, with the threat for more showers and
isolated thunderstorms. The front exits during Friday, with dry
and seasonable conditions to start next weekend.

Near term until 6 pm this evening
Scattered showers are pushing off the coast early this morning,
but the threat for a few showers and an isolated t-storm will
continue across SE coastal new eng through daybreak along the
axis of the low level jet. Otherwise, increasing sunshine
develops this morning with a very warm day for sne. 850 mb
temps 14-16c with developing W NW flow support highs in the
mid upper 80s and would not be surprised to see a 90 degree
reading. SW winds along the immediate coast will hold temps
there in the 70s. Steep low level lapse rates with deep and
well mixed boundary layer will result in gusty winds developing
this afternoon, mainly away from the south coast as a low level
inversion will persist there. Gusts to 30 mph likely,
especially along and north of the pike.

Regarding convective potential this afternoon, sbcapes 500-1000
j kg expected to develop which will be limited by bl mixing and
drier air at the surface. Soundings also show very dry air
developing above 750 mb which will limit t-storm potential.

However, weak front and low level convergence south of the pike
may be enough to trigger an isold shower t-storm during
mid late afternoon. The focus for any convection would be
mainly across ri and SE ma and possibly eastern ct where
slightly higher dewpoints may result in locally higher
instability. Also noting a ribbon of higher ki in this area.

Risk is low but non zero.

Short term 6 pm this evening through 6 pm Monday
Tonight...

weak front moves south of the coast with dry airmass and light
northerly flow. With clear skies, lows will drop back into the
50s.

Monday...

weak high pres in control will result in plenty of sunshine.

Cooler airmass but still warm away from the coast. High should
reach well into 70s, near 80 ct valley, but upper 60s along the
immediate coast, especially eastern ma where sea breezes
develop. A cold front will be dropping south from northern new
eng during the afternoon and a few showers are possible along
the boundary but this should remain to the north. The front
drops south across sne Mon evening.

Long term Monday night through Saturday
Highlights...

* mainly dry conditions Monday night
* wavering front lingers Tuesday through Wednesday night with
areas of showers and patchy nighttime fog
* cold front approaches Thu thu night bringing mild
temperatures with showers and isolated thunderstorms
* rain exits Friday, then mainly dry, seasonable conditions
early next weekend
overview...

the progressive, active weather pattern across the northeast
looks to continue through most of not during the entire long
term period. Subtropical ridging remains across the southern
u.S., with general long wave ridging remains across the western
third of the country. Noting a continued nearly zonal mid level
steering wind flow across the northeast, bringing a series of
short waves from the central mississippi valley across the great
lakes to the region.

So, will see periods of showers with mainly near to somewhat
below temperatures through around Wednesday night. The wavering
front channeling these lows may lift far enough north for a
brief break, before a cold front moves E out of the ohio
valley southern great lakes during Thursday. This may bring
milder temperatures and more instability, so may see isolated
embedded thunderstorms late Thu thu night prior to frontal
passage.

Medium range models continue signal generally drier, seasonal
conditions for the start of june.

Details...

Monday night...

should see dry but cool conditions Monday evening as high
pressure moves off the S coast. With the fast flow aloft, clouds
will increase and a few showers may push into central and
western areas after midnight as a warm front approaches.

Tuesday through Thursday...

a mainly zonal steering flow from north central plains eastward
to the northeast will keep mid level shortwaves and associated
surface lows moving across the region. GEFS ensembles signaling
possible pwat plume moving across, with 1-2 sd above normal
precip, possibly up to 3 sd above normal by late Thursday.

Each system will bring a chance for showers, though there may
be a better chance from around midday Tuesday into Wednesday
morning. Current forecast suggests some locally heavy rainfall
may move in with this system, especially across the ct valley
and central areas. QPF amounts may range from 0.5 inches to 1
inch of precip there.

May see a brief break around Wednesday night, then another shot
moves in by around midday Thursday. Temps may warm up during
Thursday as a warm front lifts n. Highs may reach the lower-mid
80s. This will help increase the instability factor ahead of the
approaching cold front, with k indices in the lower 30s, slis
around zero to -1 and tq values in the upper teens. Have
mentioned isolated thunder during this portion of the forecast.

Friday and Saturday...

h5 short wave and surface cold front crosses the region Friday,
with leftover showers pushing offshore by around midday. Some
models try to have some spotty precip lingering across central
and eastern areas during the day, but should be mainly dry and
cooler as winds shift to w-nw.

Dry, nearly zonal mid level flow sets up across most of the
northern tier by early Saturday. Ridging looks to set up across
the northeast. So, at this point, looks like generally dry and
seasonal conditions for the start of meteorological summer on
Saturday.

Aviation 09z Sunday through Thursday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Monday ... High confidence.

Through 12z...

vfr CIGS with areas of MVFR developing. Showers and sct
t-storms exiting eastern ma coast 06-07z, otherwise just a few
showers to move through, becoming focused near the CAPE islands
10-12z. A few SW gusts to 20-25 kt.

Today...

leftover MVFR ifr cigs CAPE islands becomingVFR 14-15z but
lower CIGS may linger at ack until 17-18z. OtherwiseVFR. Low
risk for an isold shra tsra late afternoon over ct ri and SE ma.

West wind gusts to 25-30 kt developing in the afternoon, mainly
along and north of the pike.

Tonight...VFR. Light winds.

Monday...VFR. Sea breezes developing late morning into the
afternoon.

Kbos terminal... High confidence.

Kbdl terminal... High confidence.

Outlook Monday night through Thursday ...

Monday night: mainlyVFR, with local MVFR possible.

Tuesday: mainly MVFR, with areasVFR possible. Shra likely.

Tuesday night: mainly MVFR, with local ifr possible. Shra
likely.

Wednesday: mainlyVFR, with local ifr possible. Chance shra.

Wednesday night: mainlyVFR, with areas MVFR possible. Breezy.

Chance shra.

Thursday: mainlyVFR, with areas MVFR possible. Breezy. Chance
shra, slight chance tsra.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Monday ... High confidence.

Today... Low level jet exits after daybreak with SW winds
diminishing over SE waters. Winds below SCA for most of the
waters, but west gusts 25-30 kt developing in the afternoon
over boston harbor and eastern ma nearshore waters near the
coast and narragansett bay where deeper mixing is present. Sca
issued for these locations this afternoon.

Tonight... Nw winds quickly diminish in the evening becoming n
overnight.

Monday... Light northerly winds turning onshore over nearshore
waters in the afternoon as sea breezes develop.

Outlook Monday night through Thursday ...

Monday night: winds less than 25 kt.

Tuesday: winds less than 25 kt. Chance of rain showers.

Tuesday night: winds less than 25 kt. Seas locally approaching
5 ft. Rain showers likely.

Wednesday through Wednesday night: winds less than 25 kt. Areas
of seas approaching 5 ft. Chance of rain showers. Local
visibility 1 to 3 nm.

Thursday: winds less than 25 kt. Areas of seas approaching
5 ft. Chance of rain showers, slight chance of thunderstorms.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Small craft advisory until 10 am edt this morning for anz231-
232.

Small craft advisory from 1 pm this afternoon to 8 pm edt this
evening for anz230-236-251.

Small craft advisory until 1 pm edt this afternoon for anz250.

Small craft advisory until 3 pm edt this afternoon for anz254-
255.

Synopsis... Kjc evt
near term... Kjc
short term... Kjc
long term... Evt
aviation... Kjc evt
marine... Kjc evt


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
44090 21 mi57 min 53°F1 ft
44020 - NANTUCKET SOUND 26 mi37 min S 18 G 21 56°F2 ft1014.4 hPa
44018 - SE Cape Cod 30NM East of Nantucket, MA 32 mi37 min S 18 G 21 53°F 4 ft1012.9 hPa (-2.6)50°F
WAXM3 - Waquoit Bay Reserve, MA 34 mi102 min WNW 2.9 59°F 1016 hPa57°F
NTKM3 - 8449130 - Nantucket Island, MA 35 mi57 min S 7 G 12 55°F 59°F1015.4 hPa
BZBM3 - 8447930 - Woods Hole, MA 42 mi57 min 58°F 58°F1014.4 hPa

Wind History for Nantucket Island, MA
(wind in knots)    EDIT      (on/off)   Help
-12
PM
7
AM
8
AM
-12
PM
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
PM
1
AM
2
AM
3
AM
4
AM
5
AM
Last
24hr
NW7
G10
NW7
G11
NW8
G13
NW9
G12
NW9
NW7
NW6
N5
G8
SW6
G10
W7
G12
SW5
G10
SW5
G10
SW5
G9
SW5
G8
SW5
G8
SW3
G8
S7
G11
S7
G12
S8
G14
S7
G13
S8
G14
1 day
ago
SW8
G14
W11
G19
W8
G15
W9
G16
NW11
G19
NW11
G19
N9
G14
N13
G18
N15
G20
N17
G29
NE7
G24
N15
G25
NE13
G26
N12
G25
NE12
G15
N7
G14
N5
2 days
ago
SW6
SW6
G11
S7
G12
S5
G14
S7
G12
S11
G14
S11
G17
S9
G15
S10
G21
S11
G19
S11
G17
S6
G14
S6
G17
S9
G16
S7
G14
S11
G17
S11
G22
SW7
G15
SW9
G15
SW8
G15

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chatham, Chatham Municipal Airport, MA6 mi35 minSSW 710.00 miOvercast56°F53°F90%1015.1 hPa
Hyannis, Barnstable Municipal-Boardman Airport, MA19 mi31 minSSW 1110.00 miOvercast58°F54°F87%1014.1 hPa
Provincetown Municipal Airport, MA22 mi31 minS 13 G 1810.00 miLight Rain55°F53°F93%1013.8 hPa

Wind History from CQX (wind in knots)
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
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
Last 24hrCalmNW6NW6NW8N8NW955NE7653S74SW6SW4SW5SW6SW8SW8
G16
SW8SW4SW7S7
1 day agoSW76W10
G19
W11
G22
NW7
G21
W12
G23
NW11
G29
N10
G17
N10
G21
N16
G28
N14
G32
N13
G31
N12
G28
N12
G24
NE13
G27
NE11
G20
NE11
G21
NE10N4N5CalmNW3NW3NW3
2 days agoSW6SW5SW7SW8
G17
SW10
G19
SW10
G16
S7
G17
SW10
G18
SW10
G19
S11
G22
SW12
G21
SW10
G21
SW9
G19
S12
G22
S7
G15
S11
G22
SW12
G26
SW12
G23
SW9
G21
SW9
G16
SW9
G20
SW12
G19
SW8
G14
W7

Tide / Current Tables for Nauset Harbor, Cape Cod, Massachusetts
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Nauset Harbor
Click for Map
Sun -- 12:11 AM EDT     1.22 feet Low Tide
Sun -- 01:32 AM EDT     Moonrise
Sun -- 05:10 AM EDT     Sunrise
Sun -- 05:57 AM EDT     5.76 feet High Tide
Sun -- 12:07 PM EDT     Moonset
Sun -- 12:34 PM EDT     Last Quarter
Sun -- 12:47 PM EDT     0.71 feet Low Tide
Sun -- 06:38 PM EDT     5.35 feet High Tide
Sun -- 08:03 PM EDT     Sunset
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
1.21.42.23.24.45.45.85.44.63.82.81.80.90.71.223.24.45.25.34.94.23.52.6

Tide / Current Tables for Pollock Rip Channel, Massachusetts Current
   EDIT      (on/off)   Help   One Week of Data
Pollock Rip Channel
Click for Map
Sun -- 12:56 AM EDT     1.58 knots Max Flood
Sun -- 01:32 AM EDT     Moonrise
Sun -- 03:50 AM EDT     -0.00 knots Slack
Sun -- 05:11 AM EDT     Sunrise
Sun -- 06:31 AM EDT     -1.47 knots Max Ebb
Sun -- 09:39 AM EDT     0.00 knots Slack
Sun -- 12:08 PM EDT     Moonset
Sun -- 12:34 PM EDT     Last Quarter
Sun -- 01:21 PM EDT     1.89 knots Max Flood
Sun -- 04:28 PM EDT     -0.00 knots Slack
Sun -- 07:13 PM EDT     -1.49 knots Max Ebb
Sun -- 08:02 PM EDT     Sunset
Sun -- 10:23 PM EDT     0.00 knots Slack
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
1.51.61.40.8-0.1-1-1.4-1.4-1.1-0.50.31.11.61.91.81.40.5-0.5-1.2-1.5-1.4-1-0.30.5

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (5,6,7,8)
      (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.