Friday, May24, 2019 L-36.com


Marine Weather and Tides
Cape St. Claire, 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 5:44AMSunset 8:21PM Friday May 24, 2019 9:43 PM EDT (01:43 UTC) Moonrise 12:00AMMoonset 9:44AM Illumination 65% Phase: Waning Gibbous; Moon at 21 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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ANZ531 Chesapeake Bay From Pooles Island To Sandy Point- 813 Pm Edt Fri May 24 2019
.small craft advisory in effect from Saturday afternoon through late Saturday night...
Tonight..NE winds 5 to 10 kt. Waves 1 ft.
Sat..S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Sat night..S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Sun..W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Sun night..NW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Mon..N winds 5 kt. Waves less than 1 ft.
Mon night..E winds 5 kt. Waves less than 1 ft. A chance of showers.
Tue..SW winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning.
Wed..SW winds 5 to 10 kt. Waves 1 to 2 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 813 Pm Edt Fri May 24 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build over the region through tonight before shifting offshore Saturday and Saturday night. A weak cold front will approach the waters Sunday, lingering nearby through Monday. Bermuda high will impact the waters during the middle portion of next week. A small craft advisory may be needed for portions of the waters Monday night and Tuesday.


7 Day Forecast for Marine Location Near Cape St. Claire, MD
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location: 39.09, -76.35     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 250130
afdphi
area forecast discussion
national weather service mount holly nj
930 pm edt Fri may 24 2019

Synopsis
High pressure will build from the great lakes to over our area
tonight, then shift offshore during Saturday. A warm front lifts
north of our area Saturday night, then a weak cold front slides
across our region later Sunday. Weak high pressure returns during
the beginning of next week. Low pressure will track across the great
lakes through the middle of next week, pushing another cold front
into our region by late next week.

Near term until 6 am Saturday morning
High pressure continues to build over our area, and this combined
with the loss of daytime heating (less mixing) the winds have
diminished quite a bit. Light winds will continue through the night,
although where enough of a breeze is maintained a more northeast to
eventually southeast wind direction will occur by daybreak.

A ridge axis this evening extends up the ohio valley and into the
eastern great lakes area. There is still northwest flow aloft over
our region as a result, and a 250 mb jet runs across new england.

There is also an area of focused warm air advection occurring at 850
mb across the central great lakes region. The combination of these
features is bringing areas of mid to high level clouds down across
our area. This should continue, although the sky should be clear at
times. Overall, a cooler night however given some cloud cover around
at various times should keep temperatures from dropping more.

For the 930 pm update, adjusted the temperature (slower drop so far
for many areas), dew point and wind grids based on the current
conditions and then trends. Also made some tweaks to the sky cover
based on the satellite trends.

Short term 6 am Saturday morning through 6 pm Saturday
The surface high will be over our region for much of the day on
Saturday before shifting off shore by late afternoon. Meanwhile, a
low will be progressing east into the great lakes region.

Low level southerly flow is expected as our region will be
sandwiched in between these two systems through the day. While this
often promotes warm air advection, it will be working against
persistent low and mid level clouds that could limit heating. As a a
result, went with a consensus blend of short range models - with
highs mostly in the 70s across the region.

At this point, it looks like the front will be late enough that we
likely won't see many storms in the region during the afternoon
hours.

Long term Saturday night through Friday
For the long term, upper ridging will remain the story through the
medium range with an upper trough approaching late next week. A
series of shortwave troughs will cross through this semi-
persistent ridging with a round of showers or thunderstorms
likely accompanying each one. The timing of this convection
will be quite challenging to determine at this range. With that
said, it looks like there will be two distinct rounds of
showers and storms overnight Saturday night into early Sunday
morning. The first will be associated with a decaying MCS to our
north and west Saturday night and the second looks to affect
the area Sunday evening and into the overnight. Beyond the
weekend, generally kept slight chance to chance pops in the
forecast through the middle of next week do to uncertainty in
timing. With the upper ridging in place, temperatures through
the period will remain generally above normal with widespread
highs into the 80s and lows in the 60s and low 70s. Sunday and
Wednesday will be the warmest days. Highs Wednesday are likely
to make a run at 90 degrees, especially across DELMARVA and the
i-95 corridor. Dewpoints will be in the 60s so it will be a bit
sticky through much of the period. To make a long story short,
the sensible weather will be quite typical for late spring to
early summer.

Aviation 02z Saturday through Wednesday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Tonight...VFR. North winds 10 knots or less, becoming mostly light
and variable.

Saturday...VFR. A late afternoon shower and thunderstorm is possible
in the vicinity of abe and rdg, however coverage and timing is less
certain. Southeast to south winds increasing to 8-12 knots.

Outlook...

Saturday night through Sunday night... MostlyVFR. Scattered showers
and thunderstorms possible Saturday night and late Sunday, which
may briefly lower conditions.

Monday through Tuesday...VFR expected. Isolated showers or
thunderstorms possible.

Marine
Winds and seas are expected to remain below small craft advisory
criteria tonight and Saturday.

Outlook...

conditions are forecast to remain below SCA criteria through
the entire period. Generally fair weather is expected through
the middle to end of next week, however isolated to scattered
showers and storms will be possible Saturday night and Sunday
night which may be accompanied by locally gusty winds and seas.

Chances for showers and storms will return by mid-week.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... None.

Synopsis... Gorse staarmann
near term... Gorse
short term... Johnson
long term... Staarmann
aviation... Gorse staarmann
marine... Johnson staarmann


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CPVM2 7 mi49 min 75°F 56°F
44063 - Annapolis 10 mi139 min N 5.8 G 5.8 77°F 69°F1017.7 hPa
APAM2 - 8575512 - Annapolis, MD 10 mi49 min 73°F 1017.7 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 10 mi49 min N 4.1 G 4.1 72°F 71°F1018.3 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 13 mi49 min NNW 9.9 G 12 78°F 1018.2 hPa
FSNM2 13 mi49 min NNW 13 G 16 78°F 1017.8 hPa
TPLM2 - Thomas Point, MD 14 mi43 min NNW 6 G 7 77°F 68°F1019.1 hPa (+1.5)50°F
BLTM2 - 8574680 - Baltimore, MD 17 mi49 min NNE 6 G 8.9 78°F 71°F1017.8 hPa
44062 - Gooses Reef, MD 37 mi145 min NNE 7.8 G 7.8 74°F 1018.1 hPa
CA2 - 8571892 - Cambridge, MD 39 mi49 min 75°F 73°F1018.1 hPa
WASD2 - 8594900 - Washington, DC 39 mi49 min NNE 2.9 G 7 80°F 71°F1018.3 hPa
CHCM2 - 8573927 - Chesapeake City, MD 42 mi49 min NW 1.9 G 2.9 74°F 71°F1018.2 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 48 mi49 min N 2.9 G 5.1 73°F 1019 hPa

Wind History for Tolchester Beach, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bay Bridge Field, MD8 mi63 minN 510.00 miFair73°F57°F57%1017.9 hPa
Annapolis, United States Naval Academy, MD10 mi49 minN 010.00 miA Few Clouds75°F57°F54%1018.4 hPa
Baltimore / Martin, MD18 mi49 minNW 710.00 miMostly Cloudy75°F53°F47%1018.6 hPa
Baltimore, Baltimore-Washington International Airport, MD18 mi49 minNW 410.00 miMostly Cloudy76°F51°F42%1017.9 hPa
Baltimore, Inner Harbor, MD19 mi49 minno data mi78°F50°F37%1018.3 hPa
Fort Meade / Tipton, MD22 mi61 minN 010.00 miPartly Cloudy68°F53°F60%1019.3 hPa

Wind History from W29 (wind in knots)
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Last 24hrS7S5SW3W5W4W3W6W9NW5NW7NW11
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2 days agoNW6CalmCalmN6NE6NE5NE4NE4NE3CalmNE5NE5NE5E4E5W7W7W7W7SW7SW8S6S5S6

Tide / Current Tables for Sandy Point, Maryland
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Sandy Point
Click for Map
Fri -- 12:42 AM EDT     Moonrise
Fri -- 03:25 AM EDT     0.36 feet Low Tide
Fri -- 05:46 AM EDT     Sunrise
Fri -- 10:08 AM EDT     1.17 feet High Tide
Fri -- 10:44 AM EDT     Moonset
Fri -- 05:24 PM EDT     0.38 feet Low Tide
Fri -- 08:19 PM EDT     Sunset
Fri -- 10:47 PM EDT     0.88 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.50.40.40.40.40.60.811.11.21.110.90.70.60.40.40.40.50.60.80.90.9

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Fri -- 12:42 AM EDT     Moonrise
Fri -- 01:15 AM EDT     -0.00 knots Slack
Fri -- 03:49 AM EDT     -0.43 knots Max Ebb
Fri -- 05:45 AM EDT     Sunrise
Fri -- 06:17 AM EDT     0.00 knots Slack
Fri -- 09:55 AM EDT     0.83 knots Max Flood
Fri -- 10:44 AM EDT     Moonset
Fri -- 01:12 PM EDT     -0.00 knots Slack
Fri -- 04:42 PM EDT     -0.93 knots Max Ebb
Fri -- 08:19 PM EDT     Sunset
Fri -- 08:24 PM EDT     0.00 knots Slack
Fri -- 11:11 PM EDT     0.56 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.1-0.2-0.4-0.4-0.3-0.10.20.50.80.80.70.50.1-0.3-0.7-0.9-0.9-0.8-0.5-0.10.20.40.6

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 (21,6,7,8)
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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.