Marine Weather and Tides
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
|Sunrise 7:09AM||Sunset 7:20PM||Monday March 19, 2018 6:42 AM EDT (10:42 UTC)||Moonrise 7:38AM||Moonset 8:38PM||Illumination 7%|
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|ANZ537 Tidal Potomac From Cobb Island To Smith Point- 432 Am Edt Mon Mar 19 2018 |
.small craft advisory in effect from late tonight through Tuesday afternoon...
Rest of the overnight..SW winds 5 kt. Waves less than 1 ft.
Today..W winds 5 to 10 kt...becoming E in the late morning and afternoon. Waves 1 ft or less.
Tonight..E winds 10 to 15 kt. Gusts up to 20 kt... Increasing to 25 kt late. Waves 2 to 3 ft. Rain.
Tue..NE winds 15 to 20 kt with gusts to 30 kt. Waves 5 ft. Rain.
Tue night..NE winds 15 to 20 kt with gusts to 25 kt. Waves 4 ft. Rain, sleet and snow.
Wed..N winds 15 to 20 kt with gusts to 30 kt. Waves 4 ft. Snow and sleet.
Wed night..NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
Thu..NW winds 10 to 15 kt. Waves 2 ft.
Fri..NW winds 5 to 10 kt. Waves 1 to 2 ft.
|ANZ500 432 Am Edt Mon Mar 19 2018 |
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will push out in to the western atlantic as low pressure passes through the tennessee valley today. Coastal low pressure will emerge and strengthen off the mid atlantic coast on Tuesday. Another low pressure system will develop off the carolina coast Tuesday night, passing south of our region. High pressure will build in from the west Thursday and Friday. A small craft advisory will likely be needed for the waters Tuesday night through Thursday.
7 Day Forecast for Marine Location Near Cobb Island, MDHourly EDIT Help
Area Discussion for - Wakefield, VA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus61 kakq 190843|
area forecast discussion
national weather service wakefield va
443 am edt Mon mar 19 2018
High pressure moves off the mid atlantic coast this morning. A
pair of low pressure systems will impact the region late today
through Wednesday. High pressure builds into the area late in
Near term until 6 pm this evening
Sfc high pressure moves off the mid-atlantic coast this morning,
then pushes farther offshore this afternoon allowing moisture
to overspread the area late. Lower levels remain dry thru about
18z, but look for skies to become mostly cloudy to overcast
before that has mid high clouds increase. Some overrunning yet
spotty light rain (a few hundredths at best) progged to develop
across the piedmont around after 18z, then spread east during
the afternoon. Highest pops (25-35%) west of the i95 corridor.
Highs 45-50 immediate coast, in the 50s west of the bay.
Short term 6 pm this evening through Wednesday
A complex weather system will make for an unsettled mid week
period. Inland concerns range from moderate to locally heavy
rainfall along with sct tstms across the SE tonight, rain
mixing with or changing to wet snow tues night Wed (with minor
accumulations possible). Coastal issues range form gale force
wind gusts tues Wed to possible coastal flooding thru the mid
week period. Stay tuned.
First event occurs tonight as a potent shortwave races eastward
from the tn valley late this evening, with a sfc low tracking
across nc late tonight tues morning before emerging off the
mid-atlantic coast on Tuesday. Rather impressive lift progged
with and north of the sfc low to produce a widespread rain
across the fa. Will carry categorical pops all areas with some
moderate to heavy rainfall possible after midnight. QPF amounts
could exceed an inch in some areas. Following a blend of the
models, a triple pt low should track NE across NE nc and sern va
late Monday night then out into the va capes Tue morning. Thus,
can't rule out thunder across those areas early tues morning.
Lows from the mid 30s north to mid-upr 40s se.
The sfc low deepens as it tracks across the va capes tues
morning, then pushes farther out to sea tues afternoon as weak
high pressure tries to nudge in from the north. Will carry
likely to categorical pops tues morning (locally heavy rain
early over the eastern shore), then likely pops north and ne
with chc pops south tues afternoon. Chilly with highs nr 40 low
40s north to 55-60 SE coastal areas.
Still much uncertainty on how the system evolves tues night and
wed. The first low progged to pull away from the coast tue
night with the next upr level system crossing the area wed.
This upr level system pulls in enough cold air to allow p-type
issues both periods. Chc pops to likely pops Tue evening ramp
up to likely everywhere after midnight as the moisture from the
upr level system crosses the mountains. Thicknesses suggest a
mixed rain and snow event across the piedmont Tuesday night with
a cold rain elsewhere. There could be a changeover to all snow
across louisa fluvanna counties. Temps drop into the lwr 30s nw,
mid-upr 30s se.
Wed is not looking to be a repeat of last Monday's event with
the location of the sfc low being displaced well offshore and
pcpn intensity having to rely solely on forcing aloft to
dynamically cool the column to get snow to accumulate with
temps above freezing. Will keep likely pops for most areas
during Wednesday as rain and snow showers will occur. However,
given lack of significant lift and ability to keep the column
cold enough for predominately snow, and the fact that pcpn will
be fighting the late march Sun angle, will not show much snow
accumulation. Stayed closed to wpc guidance with 0.5-1"
accumulations tues night Wed limited to fluvanna louisa county
and traces amounts along west of an oxb-jgg-fkn-ixa line. Other
than a possible rain snow mix across far SE va and coastal ne
nc Wed evening, expecting all liquid pcpn for this event.
Long term Wednesday night through Sunday
Deep anomalous trough aloft will remain near the E coast thu-fri
before slowly shifting E next weekend. Meanwhile... Blocking upper
level high will remain INVOF hudson bay. Using a blend of
gfs wpc ECMWF through the period. Expecting a continuation of (much)
below temperatures Wed night thu-sun. Lingering clouds isold-sct
ra sn Wed eve (esp toward the coast)... Then dry cool wx thu-fri.
Next lo pres system develops INVOF nrn plains by fri... Then tracks e
(undercutting the upper level high N of the great lakes) through the
mid-atlantic NE CONUS next weekend... Bringing increased clouds pops.
Lows Wed night in the u20s W to the m30s right at the coast. Highs
thu ranging through the 40s. Lows Thu night in the u20s w... M30s at
the coast. Highs Fri around 50f inland... M40s at the coast. Lows fri
night in the l30s inland... U30s-around 40f at the coast. Highs sat
in the u40s-l50s inland... M-u40s at the coast. Highs Sun in the 40s
n to m50s s.
Aviation 09z Monday through Friday
Vfr conditions prevail across the region as of 06z as high
pressure along the coast slowly moves offshore. High level
clouds overspread the area this morning into afternoon ahead of
the next system approaching from the sw. Any pcpn with this
system will hold off until after 18z mon. Rain will overspread
the region Mon night into Tue morning, and could be heavy for a
time. Ceilings and visibilities will generally decrease to MVFR
conditions during the overnight. Brief ifr conditions are
possible in the heaviest rain.
Outlook: another window of flight restrictions late tues thru
wed. Rain for the most part may mix with or change to wet snow
by Wed at ric and sby. Gusty winds buffet the coast Tue and wed
as a coastal storm develops.
Sub-sca conditions to prevail today into this evening as sfc
high pressure along the nc coast gradually slides offshore later
this morning as low pressure across the tn valley begins to
move east towards the region. Initially, will see the flow
turn E SE and still remain rather light in the 10-15 kt range
with seas averaging 2-3 ft and waves 1-2 ft.
By tonight, the pressure gradient will tighten in between the
approaching sfc low from the w, and ~1030mb sfc high centered
over ontario but ridging SE into the northern mid-atlc region.
Have converted the gale watch for the coastal waters N of cape
charles into a gale warning, and raised SCA headlines for the
remainder of the marine area. NE winds will ramp up
significantly after midnight, as the initial sfc low stalls over
eastern ky and transfers energy to a developing sfc low across
the nc coastal plain. The exact position of this will be
critical as to how strong the winds get in southern portions of
the marine area. A slight southward shift in the track of this
low would lead to gales farther south than what is currently
forecast (i.E spreading into the lower bay and coastal waters
to the va nc border). For now, the consensus has been to rapidly
intensify the sfc low in the vicinity of the va nc border tue
morning, then lift it NE and this would support gales staying a
little farther north. Did mention gusts to 35 kt in much of the
marine area in the mww and will continue to monitor closely.
This initial low will head out farther to sea Tue aftn tue
evening. As the upper level low enters the region late tue
night wed, a new surface low will develop along off the carolina
coast and lift it NE off the virginia coast during the day wed.
Another round of gale force conditions are likely across the
northern coastal waters while SCA conditions with 25 to 30 kt
winds are likely over the remainder of the area. Seas will build
pretty quickly as well on Tuesday into Wednesday with seas
getting up to 8 to 12 ft on the coastal waters.
By Wed night Thu morning, the sfc low will be moving well off
the coast and this will allow conditions to begin to relax with
nw flow continuing into Friday when high pressure finally moves
over the area. Seas likely to remain elevated for the coastal
waters such that SCA headlines will continue through at least
Tides coastal flooding
Low pressure approaches from the tn valley later today, and
intensifies just off the coast on Tue before pulling off to the
ne. Secondary area of low pressure lags back off the carolina
coast and tracks NE off the mid-atlc coast Wed wed night. This
pattern will allow for a strong and persistent NE flow into much
of the local area from late tonight into Tue night, then winds
shift more to the nnw on wed. Building tidal departures and the
potential for at least minor coastal flooding over locations
adjacent to the lower bay and the atlc coast from ocean city to
currituck nc. Current forecast projections give the greatest
chance for flooding late Tue night into midday Wed as the
anomalies will take awhile to build tonight through tue.
Akq watches warnings advisories
Marine... Small craft advisory from 1 am Tuesday to 6 am edt Wednesday
Small craft advisory from 4 am Tuesday to 6 am edt Wednesday
Gale warning from 4 am Tuesday to 6 am edt Wednesday for
near term... Jdm
short term... Jdm mpr
long term... Alb
tides coastal flooding... Akq
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|PPTM2 - 8578240 - Piney Point, MD||13 mi||42 min||SW 1 G 1.9|
|NCDV2||17 mi||42 min||SW 1.9 G 4.1||40°F||44°F||1011.8 hPa (-0.8)|
|SLIM2 - 8577330 - Solomons Island, MD||17 mi||42 min||SW 14 G 16||42°F||42°F||1012.3 hPa (-0.9)|
|LWTV2 - 8635750 - Lewisetta, VA||22 mi||42 min||W 2.9 G 4.1||41°F||44°F||1012.9 hPa (-0.6)|
|COVM2 - 8577018 - Cove Point LNG Pier, MD||23 mi||42 min||WSW 17 G 23||42°F||1012.7 hPa (-1.3)|
|44062 - Gooses Reef, MD||29 mi||32 min||SSW 7.8 G 7.8||42°F||1013.1 hPa|
|BISM2 - 8571421 - Bishops Head, MD||38 mi||42 min||SSW 4.1 G 5.1||41°F||44°F||1013.2 hPa (-0.5)|
|BSLM2 - Chesapeake Bay, MD||39 mi||132 min||Calm||29°F||1013 hPa||27°F|
|CA2 - 8571892 - Cambridge, MD||44 mi||42 min||37°F||42°F||1013.1 hPa (-1.2)|
|WASD2 - 8594900 - Washington, DC||47 mi||42 min||Calm G 1||37°F||43°F||1012.9 hPa (-0.6)|
Wind History for Piney Point, MD(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|St Marys County Airport, MD||12 mi||65 min||SSW 5||10.00 mi||Fair||37°F||32°F||81%||1012.9 hPa|
|St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD||18 mi||49 min||SW 4||10.00 mi||Fair||37°F||30°F||76%||1012.8 hPa|
|Patuxent River, Naval Air Station, MD||19 mi||1.8 hrs||SSW 9||10.00 mi||Fair||40°F||34°F||79%||1012.5 hPa|
Wind History from NUI (wind in knots)
|1 day ago||Calm||SW||SW||W||SW||SE||SE||E||Calm||Calm||SE||S||Calm||Calm||W||Calm||Calm||Calm||Calm|
|2 days ago||Calm||Calm||NW|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Colton's Point |
Click for Map
Mon -- 04:32 AM EDT 2.08 feet High Tide
Mon -- 07:12 AM EDT Sunrise
Mon -- 08:37 AM EDT Moonrise
Mon -- 10:47 AM EDT 0.04 feet Low Tide
Mon -- 05:01 PM EDT 1.95 feet High Tide
Mon -- 07:18 PM EDT Sunset
Mon -- 09:37 PM EDT Moonset
Mon -- 10:50 PM EDT 0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Point Patience |
Click for MapFlood direction 315° true
Ebb direction 145° true
Mon -- 01:19 AM EDT 0.55 knots Max Flood
Mon -- 03:57 AM EDT -0.00 knots Slack
Mon -- 07:11 AM EDT Sunrise
Mon -- 07:48 AM EDT -0.85 knots Max Ebb
Mon -- 08:36 AM EDT Moonrise
Mon -- 11:55 AM EDT 0.00 knots Slack
Mon -- 01:42 PM EDT 0.42 knots Max Flood
Mon -- 04:02 PM EDT -0.00 knots Slack
Mon -- 07:16 PM EDT Sunset
Mon -- 07:51 PM EDT -0.77 knots Max Ebb
Mon -- 09:36 PM EDT Moonset
Mon -- 11:42 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  HelpWeather Map
GOES Local Image of Mid-Atlantic 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.
target = "new">Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Wakefield, VA (6,6,7,8)(on/off)  Help
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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.