Tuesday, March26, 2019 L-36.com


Marine Weather and Tides
Algonquin, 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 6:56AMSunset 7:23PM Tuesday March 26, 2019 6:47 AM EDT (10:47 UTC) Moonrise 12:00AMMoonset 9:50AM Illumination 71% Phase: Waning Gibbous; Moon at 20 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- 437 Am Edt Tue Mar 26 2019
.small craft advisory in effect through this evening...
Rest of the overnight..N winds 15 kt with gusts to 25 kt. Waves 2 ft.
Today..N winds 15 to 20 kt with gusts to 30 kt. Waves 2 to 3 ft.
Tonight..N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Wed..NE winds 5 to 10 kt. Waves 1 ft.
Wed night..SE winds 5 to 10 kt. Waves 1 ft.
Thu..S winds 5 to 10 kt. Waves 1 ft.
Thu night..S winds 10 kt. Waves 1 ft.
Fri..S winds 5 to 10 kt. Waves 1 ft.
Sat..S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers through the night.
ANZ500 437 Am Edt Tue Mar 26 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build in from the great lakes through Wednesday and slide southeastward offshore Thursday and Friday. A cold front will approach the waters from the west this weekend. Small craft advisories may be needed Saturday.


7 Day Forecast for Marine Location Near Algonquin, MD
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location: 38.59, -76.07     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 260945
afdphi
area forecast discussion
national weather service mount holly nj
545 am edt Tue mar 26 2019

Synopsis
High pressure located in wisconsin early this morning will
build to the east. The center of the high is forecast to pass
off the coast on Wednesday afternoon. A cold front from the
northwest is expected to approach our region on Thursday night
before retreating to the north on Friday. A more substantial
cold front is anticipated to arrive on Sunday.

Near term until 6 pm this evening
An upper-level trough axis will cross our region later today.

As some ridging builds northeastward from the ohio valley into
the eastern great lakes, an extensive area of surface high
pressure will build eastward from the great lakes region.

Meanwhile, low pressure will be well to our southeast and will
continue to move out to sea. The pressure gradient between this
low and incoming high pressure will result in a breezy north to
northeast wind for awhile today. The highest winds are expected
to be closer to the coast (and the higher elevations of the
poconos).

The airmass associated with the incoming surface high is very
dry, with dew points dropping into the teens and single numbers
from north to south. This is already occurring early this
morning, and this will result in rather low relative humidity
values especially during peak heating today. The winds however
should be diminishing some during the afternoon as high pressure
gets closer and the pressure gradient relaxes some. Given the
rather dry airmass and high pressure building closer to us,
plenty of sunshine is expected.

The guidance is somewhat mixed with the high temperatures
today, and we sided with mostly a blend of continuity and mos.

The low-level flow may be more north compared to northeast,
however given decent 850 mb cold air advection we did not go as
high as some of the warmer guidance suggests. It will be
noticeably cooler along the coast including the southern coast
of delaware bay given a gusty wind off the chilly waters.

Short term 6 pm this evening through 6 am Wednesday
A cold night is in store. As some weak ridging arrives from the
west through the overnight, surface high pressure will slide
even closer to our area. As this occurs and a northerly flow
continues, the cold air advection is forecast to weaken. While a
pressure gradient remains on the east side of high pressure,
many places this evening should decouple enough to allow for
light winds to occur. Therefore, allowing the temperatures to
drop quickly especially given the rather low surface dew points.

A slower temperature drop may occur closest to the coast given
enough wind hanging on there, but even here it will still be a
cold night.

Low temperatures are a continuity multi-model blend with some
local adjustments made.

Long term Wednesday through Monday
The center of surface high pressure is forecast to pass across
our region on Wednesday. We are anticipating a sunny sky for
Wednesday and mostly clear conditions for Wednesday night with
temperatures a bit below normal.

A mid level long wave trough over central and eastern canada is
forecast to expand southward on Thursday. The feature is
expected to push a cold front toward our region at that time.

However, the trough should begin to build back toward the
central part of the country on Friday and a ridge is expected to
begin building off the east coast.

The forecast mid level pattern should prevent the cold front
from dropping through our region. The boundary is anticipated to
lift back to the north on Friday with a mild southwest flow
developing for Friday and Saturday. There may be some clouds
associated with the cold front from Thursday afternoon into
Friday, along with a minimal chance of showers in parts of
eastern pennsylvania and northern new jersey. Partly cloudy
conditions are expected for Friday night and Saturday. Afternoon
temperatures will become quite mild with highs favoring the 60s
on Friday and rising into the 70s on Saturday. The cold ocean
and bay temperatures will maintain a bit of a chill in coastal
areas.

A cold front approaching from the northwest is expected to
arrive on Sunday. We will continue to mention showers in
association with the front from Saturday night into early
Monday. If the showers linger well into Sunday night in the
elevated terrain of the poconos and far northern new jersey, the
precipitation could end as a little snow there.

Temperatures should trend back toward normal for the early part
of next week.

Aviation 10z Tuesday through Saturday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Today...VFR. North or northeast winds 10-15 knots with gusts up
to 25 knots, with the highest especially at acy.

Tonight...VFR. North or northeast winds diminishing to around 5
knots, then becoming light and variable at some terminals.

Outlook...

Wednesday... MainlyVFR. Northeast wind 10 knots or less
becoming southeast.

Wednesday night... MainlyVFR. Variable wind 5 knots or less.

Thursday... MainlyVFR. South wind increasing to 5 to 10 knots.

Thursday night and Friday... MainlyVFR. There may be some late
night and early morning visibility restrictions. South to
southwest wind 10 knots or less.

Friday night and Saturday... MainlyVFR. There may be some late
night and early morning visibility restrictions. South to
southwest wind 10 knots or less on Friday night increasing to 10
to 15 knots on Saturday.

Marine
An update was sent around 530 am to add the upper delaware bay
into the small craft advisory (goes through noon today) as winds
are gusting to around 25 knots.

Small craft advisory for all zones. North to northeast wind
gusts up to 30 knots today and tonight, however these will
diminish some toward early afternoon for delaware bay and by
later this afternoon across the northern atlantic coastal
waters. Some increase may then occur for a time tonight before
diminishing toward daybreak. Seas will continue to build today
given the stronger north to northeast flow (highest for the
delaware atlantic coastal waters).

Outlook...

Wednesday... Wave heights should remain around 5 feet on our
ocean waters from off atlantic city southward into Wednesday
morning. As a result, the small craft advisory remains in effect
until noon for that area. No marine headlines are expected for
delaware bay or for our ocean waters north of atlantic city.

Wednesday night through Friday night... No marine headlines are
anticipated.

Saturday... A south to southwest wind is forecast to increase to
15 to 20 knots with gusts approaching 25 knots. Wave heights on
our ocean waters may build to 5 feet.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... Small craft advisory until noon edt Wednesday for anz452>455.

Small craft advisory until 4 pm edt this afternoon for anz450-
451.

Small craft advisory until noon edt today for anz430-431.

Synopsis... Iovino
near term... Gorse
short term... Gorse
long term... Iovino
aviation... Gorse iovino
marine... Gorse iovino


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CA2 - 8571892 - Cambridge, MD 1 mi35 min 43°F 49°F1020.1 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 21 mi29 min 43°F 1020.6 hPa
BISM2 - 8571421 - Bishops Head, MD 26 mi29 min 44°F 52°F1019.5 hPa
SLIM2 - 8577330 - Solomons Island, MD 27 mi29 min 43°F 47°F1019.7 hPa
TPLM2 - Thomas Point, MD 29 mi107 min N 24 G 26 43°F 46°F1020.2 hPa (+0.6)27°F
CPVM2 33 mi29 min 40°F 21°F
APAM2 - 8575512 - Annapolis, MD 35 mi29 min 40°F 1021.4 hPa
BSLM2 - Chesapeake Bay, MD 36 mi137 min N 5.1 42°F 1020 hPa33°F
PPTM2 - 8578240 - Piney Point, MD 40 mi59 min NE 12 G 16
44042 - Potomac, MD 41 mi23 min NNE 21 G 25 43°F 47°F1019.8 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 44 mi29 min 38°F 48°F1022.5 hPa
LWTV2 - 8635750 - Lewisetta, VA 46 mi35 min 44°F 49°F1019.4 hPa
DRSD1 - Delaware Reserve, DE 48 mi137 min N 8.9 42°F 1019 hPa21°F

Wind History for Cambridge, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cambridge-Dorchester Airport, MD4 mi67 minN 1210.00 miOvercast43°F26°F53%1019.6 hPa
Easton / Newman Field, MD15 mi62 minN 12 G 1710.00 miMostly Cloudy43°F21°F42%1021.3 hPa

Wind History from CGE (wind in knots)
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Last 24hrSE4CalmNE4E6E8N9SE5E6NE7NE6
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Tide / Current Tables for Cambridge, Choptank River, Maryland
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Cambridge
Click for Map
Tue -- 12:40 AM EDT     Moonrise
Tue -- 02:56 AM EDT     0.04 feet Low Tide
Tue -- 06:58 AM EDT     Sunrise
Tue -- 09:04 AM EDT     1.91 feet High Tide
Tue -- 10:49 AM EDT     Moonset
Tue -- 03:58 PM EDT     0.26 feet Low Tide
Tue -- 07:21 PM EDT     Sunset
Tue -- 09:29 PM EDT     1.56 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.40.100.20.511.41.81.91.81.61.20.90.60.30.30.40.611.31.51.51.4

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
Tue -- 12:41 AM EDT     Moonrise
Tue -- 01:30 AM EDT     -0.47 knots Max Ebb
Tue -- 04:09 AM EDT     0.00 knots Slack
Tue -- 07:00 AM EDT     Sunrise
Tue -- 07:28 AM EDT     0.73 knots Max Flood
Tue -- 10:51 AM EDT     Moonset
Tue -- 11:10 AM EDT     -0.00 knots Slack
Tue -- 02:35 PM EDT     -0.64 knots Max Ebb
Tue -- 05:53 PM EDT     0.00 knots Slack
Tue -- 07:22 PM EDT     Sunset
Tue -- 08:14 PM EDT     0.34 knots Max Flood
Tue -- 11:08 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-0.5-0.5-0.3-00.30.60.70.70.60.30.1-0.2-0.5-0.6-0.6-0.5-0.200.20.30.30.20

Weather Map and Satellite Images
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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.
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Wind Forecast for Philadelphia/Mount Holly, PA (6,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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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.