Wednesday, March20, 2019 L-36.com


Marine Weather and Tides
Cambridge, MD

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 7:06AMSunset 7:17PM Wednesday March 20, 2019 4:54 AM EDT (08:54 UTC) Moonrise 5:59PMMoonset 6:10AM Illumination 99% Phase: Full Moon; Moon at 14 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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ANZ541 Choptank River To Cambridge Md And The Little Choptank River- 442 Am Edt Wed Mar 20 2019
.small craft advisory in effect from Thursday morning through Thursday afternoon...
Rest of the overnight..SE winds 5 kt. Waves flat.
Today..SE winds 5 kt. Waves less than 1 ft.
Tonight..E winds 5 to 10 kt. Waves 1 ft. Rain. Vsby 1 to 3 nm.
Thu..E winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain.
Thu night..W winds 10 to 15 kt. Gusts up to 25 kt after midnight. Waves 1 to 2 ft. A chance of showers.
Fri..W winds 15 to 20 kt with gusts to 30 kt. Waves 2 to 3 ft. Scattered showers.
Fri night..NW winds 15 to 20 kt with gusts to 35 kt. Waves 4 ft.
Sat..NW winds 15 to 20 kt...diminishing to 10 kt after midnight. Waves 3 ft...subsiding to 2 ft.
Sun..SW winds 5 to 10 kt. Waves 1 ft.
ANZ500 442 Am Edt Wed Mar 20 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build to the south today. Low pressure will move northward along the mid-atlantic coast tonight and it will pass through our area Thursday. The low will intensify to our northeast Thursday night through Friday night before high pressure returns for the weekend. Low pressure may impact the waters early next week. A small craft advisory will likely be needed for portions Thursday night through Saturday and a gale warning may be needed for the waters Friday afternoon and Friday night.


7 Day Forecast for Marine Location Near Cambridge, MD
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location: 38.57, -76.08     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 200755
afdphi
area forecast discussion
national weather service mount holly nj
355 am edt Wed mar 20 2019

Synopsis
High pressure along the atlantic seaboard will lift to the
northeast and out to sea today. A cold front approaches from the
west on Thursday, and low pressure will develop over the mid-
atlantic. The low lifts along the coast Thursday, and then into
the gulf of maine Thursday night. The cold front passes through
the region on Friday. High pressure builds back in from the west
on Saturday and moves offshore on Sunday. Another cold front
will pass through the region early next week.

Near term until 6 pm this evening
One more nice day before diminishing conditions move into the
area tonight into Thursday. High pressure at the surface will
continue to push out to sea today, which will allow return flow
to develop across the area. Temperatures will be a few degrees
warmer than Tuesday, while dewpoints start to increase later in
the day. Dry weather will continue through the day, although
cloud cover will increase through the day north of a developing
low pressure offshore of the carolinas.

Short term 6 pm this evening through 6 am Thursday
The low pressure offshore of the carolinas this afternoon will
begin moving inland as it drifts northward overnight. A weak
surface trough will swing across the mid atlantic region as the
lifts northward, while a couple of short wave vorticity impulses
move across the area overnight. This will lead to increasing
chances of rain through the overnight hours. Temperatures may be
cold enough across the poconos at the start of the
precipitation for some light snow to develop. We are not
expecting much if any accumulation at this time, less than an
inch if any at all.

Long term Thursday through Tuesday
Cold front ahead of a deep upper trough moves though the great
lakes and into the ohio valley Thursday. Low pressure over the
mid-atlantic moves the chesapeake bay by Thursday afternoon,
then across the DELMARVA peninsula and towards southern new
jersey.

The models seem to be taking a slower and more inland trend
with this system. Thursday will feature rain moving in from
south to north through the day, and rain may be heavy at times.

A tight onshore pressure gradient will result in east winds
15-20 mph with gusts up to 30 mph for mainly coastal areas of
new jersey and delaware.

Low pressure lifts to the northeast Thursday night, and then
the cold front swings through the region Friday morning. Rain
ends after midnight Thursday night, and then there will be a
round of showers passing across the region Friday afternoon
associated with the passage of a strong shortwave. Another
shortwave passing north of the region may result in snow showers
for the poconos Friday evening.

Low pressure intensifies over eastern canada Friday and Friday
night, and forms a tight pressure gradient with high pressure
building in from the west. West-northwest winds will range from
15-25 mph with 25-35 mph gusts, and the gusty winds continue
into Saturday. A wind advisory may be needed Friday evening
through Saturday.

Temperatures will be in the 40s and 50s Thursday and Friday,
and the strong CAA will result in highs in the 30s and 40s on
Saturday.

By Sunday, low pressure over eastern canada moves out to sea,
and high pressure from the west dives off the southeast u.S.

Return flow sets up, and temperatures warm back up into at least
the 50s on Sunday, though models may be on the cool side, and
it could get back into the 60s.

Low pressure passing north of the area will drag a cold front
through the region early in the new week. Showers possible
Monday through Tuesday, though there is inconsistency among the
models, so confidence is low as to timing and even ptypes. Will
carry chance pops for now and see how models trend going forward.

Aviation 08z Wednesday through Sunday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Today...VFR conditions expected for all TAF sites through
today, although clouds will increase later today. Light and
variable winds will increase out of the south to southeast later
this morning and into the afternoon. An occasional gust around
15 knots could occur later this afternoon as well.

Tonight...VFR conditions start the night tonight, although
clouds will increase and lower through the night. MVFR, possible
ifr conditions likely to develop and spread northward later in
the night as rain moves northward into the area. Winds will
remain out of the southeast through the overnight hours 5-10
knots.

Outlook...

Thursday... MVFR ifr conditions develop during the day in
rain fog low clouds. East winds around 10 kt, though 15-20 kt
with gusts up to 30 kt possible at kmiv kacy.

Thursday night... MVFR ifr conditions in rain fog low clouds. Nw
winds around 10 kt.

Friday... MainlyVFR conditions, but sub-vfr conditions in
scattered showers. NW winds 15-20 kt with 25-35 kt gusts.

Friday night-Saturday... GenerallyVFR, though MVFR in scattered
snow showers possible Friday evening at krdg kabe. NW winds
15-20 kt with 25-35 kt gusts.

Saturday night-Sunday... VFR conditions continue with winds
shifting to west and diminishing to around 10 kt with gusts
below 20 kt.

Marine
Conditions expected to remain below advisory levels for today
and tonight, although winds and waves begin to increase later
tonight north of a developing low pressure system to our south.

Outlook...

Thursday... East winds increase to 15-20 kt with 25-30 kt. Seas
build to 4-6 ft. Vsby restrictions in rain fog.

Thursday night-Friday... Small craft advisory conditions likely
with gale force winds possible late Friday.

Friday night-Saturday... Nw winds 20-30 kt with 35-40 kt gusts.

Winds may start to diminish Saturday afternoon and especially
into the evening, possibly to SCA levels. Seas should run
generally 4 to 6 ft.

Saturday night-Sunday... Trend will be for diminishing winds
with a gradual shift from northwesterly to westerly. Sca
conditions should linger for the first half of Saturday night
before dropping to sub-sca. Seas diminishing to 2 to 4 ft by
the latter half of Saturday night and into Sunday.

Tides coastal flooding
Developing low pressure is forecast to move up the east coast on
Wednesday and Thursday. The low is expected to pass over or near our
region on Thursday night. An onshore flow is anticipated to develop
in advance of the low from Wednesday into Thursday. Tidal departures
will likely be on the increase at that time.

Wednesday evening's high tide should not pose any problem. It is
possible that we could see some spotty minor flooding with Thursday
morning's high tide.

Our main focus is on the Thursday evening high tide. Tidal
departures of +0.8 to +0.9 feet would begin to create minor flooding
at that time along the coasts of new jersey and delaware, along
delaware bay and on the tidal delaware river. Departures of greater
than +1.0 foot would produce some noticeable impacts on the
coastal tidal communities in our region, with some roadway flooding.

Also, moderate to heavy rainfall could worsen any roadway and poor
drainage area flooding.

Based on the present forecast we will continue to keep an eye on the
Thursday evening high tide for a possible coastal flood advisory.

Once the low moves away to our northeast, an offshore wind will
develop and the potential for minor coastal flooding will come to an
end.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... Small craft advisory from 8 am to 6 pm edt Thursday for anz430-
431-450>455.

Synopsis... Mps
near term... Robertson
short term... Robertson
long term... Mps
aviation... Robertson mps
marine... Robertson mps
tides coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CA2 - 8571892 - Cambridge, MD 1 mi43 min 36°F 47°F1029.2 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 20 mi37 min S 7 G 7 42°F 1029.5 hPa
BISM2 - 8571421 - Bishops Head, MD 24 mi37 min ESE 4.1 G 5.1 42°F 48°F1029.3 hPa
SLIM2 - 8577330 - Solomons Island, MD 26 mi37 min NNW 1.9 G 1.9 38°F 46°F1028.7 hPa
TPLM2 - Thomas Point, MD 30 mi55 min SSE 8 G 8.9 42°F 45°F1029.9 hPa (-0.6)31°F
CPVM2 34 mi37 min 42°F 32°F
APAM2 - 8575512 - Annapolis, MD 36 mi37 min 37°F 1028.6 hPa
BSLM2 - Chesapeake Bay, MD 36 mi145 min Calm 29°F 1030 hPa
44042 - Potomac, MD 39 mi25 min ESE 5.8 G 5.8 42°F 46°F1029.4 hPa
PPTM2 - 8578240 - Piney Point, MD 39 mi37 min E 2.9 G 4.1
LWTV2 - 8635750 - Lewisetta, VA 45 mi43 min WNW 1 G 1.9 38°F 48°F1028.8 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 45 mi37 min ESE 2.9 G 2.9 34°F 47°F1029.4 hPa
DRSD1 - Delaware Reserve, DE 49 mi145 min Calm 30°F 1030 hPa

Wind History for Cambridge, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cambridge-Dorchester Airport, MD3 mi75 minN 010.00 miFair28°F28°F100%1029.5 hPa
Easton / Newman Field, MD16 mi57 minN 010.00 miFair32°F29°F90%1030.5 hPa

Wind History from ESN (wind in knots)
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Last 24hrCalmCalmN3N4N8N3W4E4NW7W4NW6N7N5CalmCalmCalmCalmCalmSE3CalmCalmCalmCalmCalm
1 day agoE4CalmE3NE4NE7N6CalmN6NE9N4N5CalmCalmSE4SE3SE3CalmCalmCalmCalmCalmCalmCalmCalm
2 days agoCalmCalmCalmCalmNW6NW6W8
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W8W6W5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Cambridge, Choptank River, Maryland
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Cambridge
Click for Map
Wed -- 04:01 AM EDT     1.95 feet High Tide
Wed -- 07:08 AM EDT     Sunrise
Wed -- 07:10 AM EDT     Moonset
Wed -- 10:40 AM EDT     -0.18 feet Low Tide
Wed -- 04:30 PM EDT     1.92 feet High Tide
Wed -- 06:58 PM EDT     Moonrise
Wed -- 07:16 PM EDT     Sunset
Wed -- 09:43 PM EDT     Full Moon
Wed -- 11:04 PM EDT     -0.08 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.91.41.81.91.81.510.60.1-0.1-0.20.10.51.11.61.91.91.61.30.80.40.1-0.1

Tide / Current Tables for Cove Point (1.1 mi. NE of), Maryland Current
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Cove Point (1.1 mi. NE of)
Click for Map
Wed -- 02:42 AM EDT     0.61 knots Max Flood
Wed -- 05:54 AM EDT     -0.00 knots Slack
Wed -- 07:09 AM EDT     Sunrise
Wed -- 07:11 AM EDT     Moonset
Wed -- 09:10 AM EDT     -0.65 knots Max Ebb
Wed -- 12:02 PM EDT     0.00 knots Slack
Wed -- 03:00 PM EDT     0.70 knots Max Flood
Wed -- 06:19 PM EDT     -0.00 knots Slack
Wed -- 06:59 PM EDT     Moonrise
Wed -- 07:17 PM EDT     Sunset
Wed -- 09:37 PM EDT     -0.70 knots Max Ebb
Wed -- 09:43 PM EDT     Full Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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00.40.60.60.50.3-0-0.3-0.5-0.6-0.6-0.4-00.30.60.70.60.40.1-0.2-0.5-0.7-0.7-0.5

Weather Map and Satellite Images
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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.
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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.