Wednesday, March22, 2017 L-36.com


Marine Weather and Tides
Woods Hole, MA

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:40AMSunset 7:00PM Wednesday March 22, 2017 8:24 PM EDT (00:24 UTC) Moonrise 3:17AMMoonset 1:20PM Illumination 22% Phase: Waning Crescent; Moon at 25 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
ANZ234 Buzzards Bay- 717 Pm Edt Wed Mar 22 2017
.gale warning in effect until midnight edt tonight...
.freezing spray advisory in effect through Thursday morning...
Tonight..NW winds 20 to 25 kt with gusts up to 40 kt... Diminishing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 2 to 3 ft. Light freezing spray.
Thu..NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft.
Thu night..NW winds 5 to 10 kt with gusts up to 20 kt... Becoming W after midnight. Seas 1 foot or less.
Fri..SW winds 10 to 15 kt with gusts up to 20 kt...increasing to 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 2 to 4 ft. A chance of rain.
Fri night..SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Sat..W winds 10 to 15 kt with gusts up to 20 kt... Becoming N 5 to 10 kt in the afternoon. Seas 2 to 3 ft. A chance of rain.
Sat night..NE winds 5 to 10 kt. Seas 1 foot or less. A chance of rain.
Sun..E winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or less. A chance of rain and sleet.
Sun night..E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain likely.
Mon..E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Rain likely.
Mon night..NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of rain. 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 717 Pm Edt Wed Mar 22 2017
Synopsis for massachusetts and rhode island coastal waters.. High pressure slowly builds over the waters through Thursday and will move east of the waters Friday. Cold front will pass across the waters from the north on Saturday and stay south of the waters on Sunday. Low pressure will cross the southern waters on Monday. 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 Woods Hole, MA
   Hourly   EDIT   Help
location: 41.53, -70.67     debug


Area Discussion for - Boston, MA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kbox 222357
afdbox
area forecast discussion
national weather service taunton ma
757 pm edt Wed mar 22 2017

Synopsis
Blustery and very cold conditions will tonight will gradually
moderate Thursday with less wind. High pressure will move off
the eastern seaboard on Friday, bringing windy and milder
conditions. A cold front will push south across the region
Saturday, then stall south of new england early next week. Weak
low pressure waves forecast to push along this front, with the
potential for periods of rain and mixed precipitation.

Near term /until 6 am Thursday morning/
735 pm update...

winds have diminished over the last few hours, so have cancelled
the remaining wind advisory for ri/central and eastern mass.

Will still see some gusts up to 30-40 mph through around
midnight, with the highest gusts along the immediate E coast of
mass, CAPE cod and the islands.

Skies were mainly clear at 23z, except for only a few mid level
clouds lingering near the coast. Temperatures have fallen
steadily through the day, down to the 20s across the region, but
feels much colder with the gusty winds.

Winds will continue to slowly diminish tonight as pressure
gradient slowly relaxes. Strong cold air advection will also
continue, with h85 temps dropping to -14c to -18c overnight.

Expect temps down to the teens across most areas, ranging to
20-25 on CAPE cod and the islands by around midnight.

Have updated near term forecast to bring conditions current.

Previous discussion...

mid level trof axis moves east of new eng this evening, as one
last shortwave rotates through the NW flow. Column is very dry
so mainly clear skies tonight and very cold. Used a blend of
mos and model temps for lows tonight which yields 5 to 15
degrees across much of sne. Wind chills single numbers above
and below zero.

Short term /6 am Thursday morning through Thursday night/
Thursday...

still some gusty winds in the morning along the coast but trend
will be for diminishing wind in the afternoon as high pres
builds east into new eng. Under sunny skies, temps will
moderate as low and mid level temps rise, with highs reaching
mid/upper 30s which is still well below normal.

Thursday night...

high pres shifts south of new eng with developing SW flow warm
advection yielding increasing mid/high clouds. There should be a
window for good radiational cooling in the evening before
clouds thicken which will result in a cold night. Lows ranging
from mid/upper teens to mid 20s across the region with temps
stabilizing or slowly rising late.

Long term /Friday through Wednesday/
Highlights...

* light snow early Friday changes to rain as temps rise to the
lower-mid 40s
* mild temps on Saturday along with periods of light rain
* low confidence Sunday-Tuesday with unsettled weather possible at
times with some rain, sleet and/or snow possible
* conditions may slowly improve during Wednesday, but low confidence
continues
overview...

12z model suite and ensembles continue to signal general agreement
of a cold frontal passage during Saturday. Beyond this, a lot of
questions, first where this front stalls as it becomes parallel to
mid level northern stream steering flow. To complicate things, h5
cutoff low pressure over then central mississippi valley late
Saturday is forecast to open up and move along into the northern
stream flow while large high pressure pushes across central and
eastern canada keeping a cold air flow working southward.

Much will depend how far N the front stalls, and the timing of weak
low pressure waves that will move along this front. At this point,
looks like we will see periods of rain this weekend, with some
possible mixed precipitation during the nighttime hours as
temps fall close to or below freezing. Best chance for any
sleet/snow and/or freezing rain looks to occur main N of the
mass pike each night.

12z models signaling the best shot for better organized precip with
be with the approaching open h5 wave late Mon into tue. Models
showing general agreement on features, but exact timing and track
still very much in question. Could also see a better chance for
mixed precip Mon night further S with the established e-ne wind
flow, mainly for areas away from the coast. Lots of uncertainty
continues.

At this point, may see some improving conditions starting next
Wednesday, but remains a difficult call this far out.

Details...

Friday... Moderate confidence.

As large high pressure moves off the eastern seaboard Friday,
expect SW winds to bring milder temperatures across the region.

An approaching cold front will cause increasing pressure
gradient, along with SW low level jet up to 40-45 kt from h95
thru h9 moves across. While best ll mixing is limited to 925
hpa, could still see some gusts up to around 30 kt during fri
afternoon, mainly from the boston-providence corridor SE to cape
cod and the islands.

Approaching cold front will bring the threat of light snow by
mid to late morning Friday, then will quickly mixing with sleet
and snow before changing to rain by early afternoon. With the
good SW wind flow in place, should see temps rise quickly. At
this point, freezing rain remains out of the forecast, but will
continue to monitor this aspect carefully. Temps should reach
the lower-mid 40s by late in the day, though a few spots across
the higher terrain may remain below 40 but likely above
freezing, at least at this point.

By Friday night, most of the precip should dissipate or remain
across northern new england, but still can not rule out the
threat for spotty light rain. Noting a non-diurnal temp trend
due to the milder air in place ahead of the approaching cold
front. Looks like front should push into the region after 05z-
06z. Current thinking suggests that temps should remain in the
35-40 degree range through the night.

Saturday-Saturday night... Moderate confidence.

Will see mild temps on sat, actually close to seasonal normals
as warm air advection remains in place on w-sw winds. Looks like
the front should push off the S coast between mid morning to
midday on Saturday as winds start to shift to w-nw. Expect highs
in the mid- upper 40s along the N mass border, ranging to the
mid 50s across N ct/ri/se mass, though would not be surprised to
see readings a few degrees milder before beginning to fall
during Sat afternoon. Short range models suggest that patchy
light rain may redevelop during the day and continue into sat
night.

Colder air works in Sat night as winds become light northerly.

Weak low pres wave moves in, bringing another shot of light
precip. As the colder air filters in, looks like a wintry mix
could develop even as far S as the S coast after midnight. Lots
of uncertainty remains due to timing of the colder air and the
onset of precip, as well as how far south this will develop.

Will monitor this closely.

Sunday into Wednesday... Low confidence.

General forecast agreement continues during this timeframe, but
the big problem is the specific details for each day's
forecast. Will need to see how each piece of the puzzle fits in,
such as the mid mississippi upper low and how quickly it will
weaken and move NE in the northern stream flow, plus timing the
precip with each weak short wave. Another factor will be the
high over eastern canada and how it will interact with these
lows as well as the intrusion of colder air affecting ptype
during each night and whether it will linger into the daytime
hours.

A lot to consider, especially with the thermal patterns each
day. At this point, could see mixed precip into Sunday morning,
then again Sunday night into Monday. Have kept rather general
mixed bag of precip each nighttime period for now, and possibly
into the morning both Sunday and Monday. However, this could all
change with the next forecast package.

Aviation /00z Thursday through Monday/
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term /through Thursday night/... High confidence.

Vfr. NW gusts to 30-40 kt through 03z-04z mainly along the
immediate E coastal terminals, then will gradually diminish but
still gusts to 25 kt overnight. NW wind gusts to 20 kt thu
becoming light Thu night.

Kbos taf... High confidence in taf.

Kbdl taf... High confidence in taf.

Outlook /Friday through Monday/...

Friday... Moderate confidence. MainlyVFR. Patchy MVFR
cigs/vsbys in -sn, changing over to -ra by around midday. May
see some sleet early Fri across western terminals. Light rain
ends from s-n Fri night, but may linger across E slopes of the
berkshires. SW winds gusting up to 25-30 kt, highest along the
coast and higher terrain, lingering into Friday night across
cape cod and the islands before diminishing around midnight.

MVFR CIGS linger Fri night across higher terrain.

Saturday and Sunday... Low to moderate confidence. Periods of
light rain/showers through the weekend. May see mixed
sleet/freezing rain push across portions of the region Saturday
night into Sunday. Exact placement and timing in question.

Sunday night-Monday... Low confidence. Depending upon how far s
the colder air works in, could see areas of rain, sleet and
freezing rain Sun night into Mon morning which may linger most
of Mon across the higher terrain. Patchy MVFR cigs/vsbys mainly
at night/early morning hours.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term /through Thursday night/... High confidence.

Tonight... Nw gales continue into the evening before gradually
diminishing from west to east. Freezing spray will also
continue. Seas building to 12-15 ft over outer waters east of
cape cod this evening before slowly subsiding.

Thursday... Still gusty NW winds in the morning with gusts 25-30
kt diminishing a bit in the afternoon. Freezing spray will
subside in the afternoon. Hazardous seas over outer waters but
gradually subsiding.

Thursday night... Diminishing NW winds becoming light sw
overnight. Seas subsiding below 5 ft over outer waters.

Outlook /Friday through Monday/...

Friday... Moderate confidence. SW wind gusts up to 25-30 kt,
shifting to W Fri night as cold front passes. Small crafts
likely. Low chance for gale force gusts on the eastern outer
waters Fri afternoon/evening prior to frontal passage.

Visibility restrictions possible in patchy light rain Fri into
fri night.

Saturday... Moderate confidence. Leftover small crafts as w
winds gust to 25 kt early sat, then should diminish. Light rain
redevelops as cold front pushes off the coast with some
visibility restrictions. May see mix of sleet and snow Sat night
as colder air works in on NE winds.

Sunday-Monday... Low confidence. Depending upon where the front
stalls, may see more periods of rain during each day, possibly
mixing with sleet and snow across the eastern waters Sun night.

E-ne winds gusting to 25-30 kt so small crafts may be needed
again.

Climate
Just sent out the latest cli messages for our four long term
climate sites. Looks like the record mins and record cold max
temps will remain intact for today.

Record lows for today:
boston (bos) 8/1885, forecast low of 20
hartford (bdl) 12/1934, forecast low of 19
providence (pvd) 15/1988, forecast low of 20
worcester (orh) 8/1988, forecast low of 14
record cold highs for today:
boston (bos) 24/1885, high was 43 set at 259 am
hartford (bdl) 29/1960, high was 38 set at 251 am
providence (pvd) 28/1914, high was 42 set at 1207 am
worcester (orh) 25/2002, high was 36 set at 1234 am
record lows for Thursday, march 23:
boston (bos) 6/1934
hartford (bdl) 9/1934
providence (pvd) 8/1934
worcester (orh) 4/1934

Box watches/warnings/advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Freezing spray advisory until 11 am edt Thursday for
anz231>235-250-251-254>256.

Gale warning until 2 am edt Thursday for anz231-232-251-255-
256.

Gale warning until midnight edt tonight for anz230-233>235-237.

Gale warning until 10 pm edt this evening for anz236.

Gale warning until 5 am edt Thursday for anz250-254.

Synopsis... Kjc/evt
near term... Kjc/evt
short term... Kjc
long term... Evt
aviation... Kjc/evt
marine... Kjc/evt
climate... Staff


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
BZBM3 - 8447930 - Woods Hole, MA 0 mi54 min 27°F 37°F1020.4 hPa
WAXM3 - Waquoit Bay Reserve, MA 8 mi99 min 27°F -8°F
BUZM3 - Buzzards Bay, MA 21 mi84 min NW 33 G 36 28°F 1020.6 hPa (+3.8)
44020 - NANTUCKET SOUND 26 mi94 min 40°F5 ft1017.5 hPa (+3.9)
44090 28 mi50 min 37°F10 ft
FRXM3 29 mi54 min 28°F 2°F
FRVM3 - 8447386 - Fall River, MA 29 mi54 min 28°F 40°F1022.1 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 29 mi54 min NNW 17 G 28 29°F 1022 hPa
NWPR1 - 8452660 - Newport, RI 35 mi54 min NNW 19 G 30 28°F 39°F1021.7 hPa
NTKM3 - 8449130 - Nantucket Island, MA 35 mi54 min NNW 18 G 27 28°F 39°F1020 hPa
NAXR1 - Narragansett Bay Reserve, RI 36 mi99 min N 9.9 28°F 1021 hPa-1°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 36 mi54 min N 8 G 20 27°F 1022.7 hPa
CPTR1 - 8452944 - Conimicut Light, RI 38 mi54 min NW 27 G 33 28°F 40°F1021.4 hPa
QPTR1 - 8454049 - Quonset Point, RI 39 mi54 min NW 16 G 23 27°F 39°F1022.3 hPa
PVDR1 42 mi54 min NW 22 G 29 27°F 1021.5 hPa-5°F
FOXR1 - 8454000 - Providence, RI 43 mi54 min NNE 14 G 29 27°F 38°F1021.1 hPa
44097 - Block Island, RI (154) 46 mi59 min 40°F9 ft

Wind History for Borden Flats Light at Fall River, MA
(wind in knots)    EDIT      (on/off)   Help
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
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last
24hr
SW9
SW6
NW16
NW13
G16
W7
SW3
S2
SW5
NW15
G21
W15
G22
W18
W16
G22
W27
G38
NW28
G37
NW22
G28
NW19
G26
NW25
G31
NW25
G34
NW21
G31
NW23
G32
NW22
G31
N19
G24
NW12
G17
NW15
G20
1 day
ago
--
SW3
SW3
SW2
SW3
G6
W2
NW3
NW4
G7
NW9
N4
--
SW3
SW5
S1
SW6
SW9
SW12
SW12
SW12
SW14
SW8
SW11
S8
E1
2 days
ago
N9
G12
N9
G12
N8
NW8
G12
N10
N13
G18
N11
G16
N11
G15
N11
G14
N11
G17
N10
G17
N12
G17
N16
G24
N15
N18
G25
N22
G27
N20
G25
N20
G28
NE13
G17
N14
G19
NW12
G17
N7
N5
G8
--

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Vineyard Haven, Marthas Vineyard Airport, MA9 mi31 minNNW 20 G 3010.00 miFair and Breezy26°F-5°F25%1021 hPa
New Bedford, New Bedford Regional Airport, MA19 mi31 minNW 8 G 1610.00 miFair26°F-6°F24%1021.4 hPa
Hyannis, Barnstable Municipal-Boardman Airport, MA23 mi28 minNW 16 G 2710.00 miFair26°F-2°F29%1019.7 hPa

Wind History from MVY (wind in knots)
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
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last 24hrSW6SW5W4W9NW7NW5NW4CalmSW4W6W5NW12NW13
G22
NW15NW17
G27
NW22
G27
NW17
G28
NW22
G33
NW21
G30
NW18
G34
NW22
G36
NW19
G33
NW16
G29
NW20
G30
1 day agoN5CalmNW4W6NW3NW6NW6NW6NW9NW8CalmCalmNW5N65S10S12S13SW14SW11
G19
SW7SW11SW6SW5
2 days agoN18
G29
N16
G23
N19
G25
N13
G20
N15
G24
N12N12N13
G21
N13N13
G20
N14N12
G19
N18
G26
N17
G26
N15
G21
N17
G30
N20
G29
N18
G26
N14
G22
N19
G31
N17
G25
N9N7N6

Tide / Current Tables for Woods Hole Oceanographic Institute, Massachusetts
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Woods Hole Oceanographic Institute
Click for Map
Wed -- 03:16 AM EDT     Moonrise
Wed -- 04:38 AM EDT     1.52 feet High Tide
Wed -- 06:42 AM EDT     Sunrise
Wed -- 06:51 AM EDT     1.28 feet Low Tide
Wed -- 07:41 AM EDT     1.30 feet High Tide
Wed -- 11:42 AM EDT     0.40 feet Low Tide
Wed -- 01:20 PM EDT     Moonset
Wed -- 04:49 PM EDT     1.19 feet High Tide
Wed -- 06:57 PM EDT     Sunset
Wed -- 07:20 PM EDT     0.82 feet Low Tide
Wed -- 08:28 PM EDT     0.87 feet High Tide
Wed -- 11:11 PM EDT     0.47 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.811.21.51.51.41.31.31.10.70.40.40.50.60.91.11.210.80.80.80.60.5

Tide / Current Tables for Quicks Hole (middle), Massachusetts Current
   EDIT      (on/off)   Help   One Week of Data
Quicks Hole (middle)
Click for Map
Wed -- 12:05 AM EDT     0.01 knots Slack
Wed -- 03:16 AM EDT     Moonrise
Wed -- 04:50 AM EDT     1.94 knots Max Flood
Wed -- 06:42 AM EDT     Sunrise
Wed -- 07:01 AM EDT     -0.00 knots Slack
Wed -- 09:19 AM EDT     -1.97 knots Max Ebb
Wed -- 12:43 PM EDT     0.01 knots Slack
Wed -- 01:21 PM EDT     Moonset
Wed -- 05:21 PM EDT     2.15 knots Max Flood
Wed -- 06:58 PM EDT     Sunset
Wed -- 07:43 PM EDT     -0.01 knots Slack
Wed -- 09:51 PM EDT     -1.88 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.10.81.11.51.81.91.70.4-1.5-1.9-1.9-1.4-0.70.61.11.51.92.12.11.6-0.8-1.7-1.9-1.6

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Boston, MA (20,4,5,8)
      (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.