Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Piney Point, MD

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 6:54AMSunset 7:30PM Wednesday March 29, 2017 7:02 PM EDT (23:02 UTC) Moonrise 7:06AMMoonset 8:24PM Illumination 6% Phase: Waxing Crescent; Moon at 2 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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ANZ537 Tidal Potomac From Cobb Island To Smith Point- 432 Pm Edt Wed Mar 29 2017
.small craft advisory in effect through late tonight...
Rest of this afternoon..N winds 10 kt with gusts to 20 kt. Waves 2 ft.
Tonight..NE winds 5 to 10 kt with gusts to 20 kt. Waves 2 ft.
Thu..E winds 5 to 10 kt. Waves 1 to 2 ft.
Thu night..SE winds 5 to 10 kt. Waves 2 ft. Rain likely.
Fri..SE winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft. Rain.
Fri night..S winds 10 to 15 kt...becoming W 5 to 10 kt after midnight. Gusts up to 20 kt. Waves 2 to 3 ft. Showers likely.
Sat..N winds 5 to 10 kt. Waves 1 to 2 ft. Showers likely in the morning.
Sun..N winds 5 to 10 kt...becoming e. Waves 1 ft.
ANZ500 432 Pm Edt Wed Mar 29 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build overhead through tonight before moving offshore Thursday. Low pressure will approach the waters Friday before passing through Friday night. High pressure will build over the waters during the weekend. Small craft advisories are possible Thursday night through Saturday.

7 Day Forecast for Marine Location Near Piney Point, MD
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location: 38.13, -76.53     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 291912
afdlwx
area forecast discussion
national weather service baltimore md/washington dc
312 pm edt Wed mar 29 2017

Synopsis
High pressure will build overhead tonight before moving off the
coast Thursday. Low pressure will pass through the area
Friday. High pressure will gradually return Saturday and Sunday
before another low pressure possibly impacts the area Monday
and Tuesday next week.

Near term /until 6 am Thursday morning/
Cold front has pushed well south of the region with high
pressure building in from the north. For this evening, winds
will gradually subside over land with mostly clear skies. Later
tonight, next system approaching from the west will cause clouds
to start increasing. In addition, low level flow will become
easterly and this will result in upslope clouds in and just
east of the mountains. Some spotty rain and drizzle is possible
over the southern shenandoah valley. Lows tonight will be cooler
than the last few nights, with readings in the 30s and 40s.

Short term /6 am Thursday morning through Saturday/
Cad will more or less remain in place in the low levels
Thursday with the high pressure sliding eastward to our north.

At the same time, low pressure system will be ejecting out of
the plains with warm/moist air advection. In addition, the
upslope flow will result in lower clouds and perhaps some light
rain or drizzle in the mountains. Highs will be cooler than
today due to the lack of Sun and onshore flow, with 50s
widespread and the cooler spots in the 40s.

Warm and moist air advection continues Thursday night and with
that we'll see increasing chances for rain. Lows mainly in the
40s. Model guidance in good agreement that the low pressure
system will track east-northeastward from near st. Louis
Thursday evening to ohio by Friday afternoon, before
redeveloping near the DELMARVA late Friday and Friday night.

Thus, most widespread coverage of rain expected late Thursday
night and Friday. We'll also have to monitor how far north the
warm sector can make it Friday afternoon. Latest guidance
indicates it may approach portions of central va and southern
md, so have maintained a slight chance of tstorms there Friday
afternoon. Highs on Friday uncertain, with locations that get
south of the warm front possibly heading towards 70, while
northern locales near the mason-dixon line may struggle to reach
50. Showers will begin to slowly wind down Friday night as the
low pulls away and winds turn northwesterly.

Low pressure slides northeast of the region Saturday, but
lingering instability and weak vort MAX could produce a few
stray showers still. Highs will be in the 50s to lower 60s.

Long term /Saturday night through Wednesday/
High pressure will settle into the region Sunday through early
Monday. Dry and seasonable temperatures expected throughout the
period.

The next storm system will move into the region midday Monday
through Tuesday, bringing the chance for rain showers to the
region once again.

Brief high pressure will build into the region Wednesday before
the next storm system approaches Wednesday night.

Aviation /19z Wednesday through Monday/
Vfr will continue through at least the first half of Thursday
all terminals. Winds mainly light, less than 10 knots tonight
and Thursday. They will turn northeasterly later tonight, and
east-southeasterly on Thursday. This will help usher in
additional clouds, although ceilings still expected to remain
vfr. Highest chances for some MVFR ceilings will be at cho and
mrb.

Greater chances for sub-vfr conditions will occur Thursday night
through Friday night with widespread rainfall. Ifr conditions
likely.

A northwest flow will allow for cigs/vsbys to improve Saturday
behind departing low pressure... But a few showers cannot be
ruled out.

Vfr conditions evolving Saturday night. Winds northwest 5 knots
Saturday night.VFR conditions expected Sunday into Sunday
night. Winds becoming light and variable Sunday and Sunday
night.

Marine
Small craft advisory remains in effect for all of the waters.

Gusts will taper off late this afternoon and SCA expires at 6
pm for some of the waters. A second surge of northeasterly winds
is expected later tonight, and a SCA will continue for the
chesapeake bay and lower tidal potomac until 6 am Thursday.

Sub-sca winds then expected Thursday, with next potential for
increasing winds on Thursday night/Friday ahead of our next
system, especially across our southern waters.

Low pressure will move away from the waters Saturday and
northwest flow will develop. A small craft advisory may be
needed for portions of the waters during this time.

No marine hazards expected Saturday night through Sunday
night. Winds northwest 5 to 10 knots Saturday night through
Sunday night.

Tides/coastal flooding
Low pressure will pass through the area Friday night. An
onshore flow will develop ahead of the low and this will cause
elevated water levels Friday into Friday night. Minor tidal
flooding near high tide is possible during this time.

Lwx watches/warnings/advisories
Dc... None.

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory until 6 am edt Thursday for anz530>534-
537-539>541-543.

Small craft advisory until 6 pm edt this evening for anz535-
536-538-542.

Synopsis... Rcm
near term... Rcm
short term... Rcm
long term... Klw
aviation... Rcm/klw
marine... Rcm/klw
tides/coastal flooding... Lwx


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PPTM2 - 8578240 - Piney Point, MD 0 mi56 min S 5.1 G 6
LWTV2 - 8635750 - Lewisetta, VA 10 mi50 min ESE 4.1 G 5.1 57°F 55°F1018.9 hPa
44042 - Potomac, MD 12 mi32 min ESE 1.9 G 1.9 58°F 1018.6 hPa
SLIM2 - 8577330 - Solomons Island, MD 14 mi50 min N 8 G 14 59°F 49°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 20 mi50 min NE 12 G 13 55°F 1019.8 hPa
BISM2 - 8571421 - Bishops Head, MD 27 mi50 min N 6 G 8.9 61°F 58°F1019.4 hPa
44062 - Gooses Reef, MD 30 mi32 min N 1.9 G 3.9 57°F 1020.2 hPa
NCDV2 30 mi50 min N 6 G 8 66°F 52°F1018.4 hPa
CA2 - 8571892 - Cambridge, MD 39 mi50 min N 13 G 15 58°F 51°F1018.4 hPa
44058 - Stingray Point, VA 42 mi32 min ENE 1.9 G 3.9 55°F 1020.1 hPa
BSLM2 - Chesapeake Bay, MD 46 mi152 min N 5.1 65°F 1018 hPa36°F
RPLV2 - 8632837 - Rappahannock Light, VA 49 mi56 min N 5.1 G 5.1 1019.8 hPa

Wind History for Piney Point, MD
(wind in knots)    EDIT      (on/off)   Help
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E7
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD5 mi4.2 hrsNNE 610.00 miFair61°F39°F46%1018.7 hPa
Patuxent River, Naval Air Station, MD13 mi70 minNNE 810.00 miA Few Clouds60°F41°F50%1019.1 hPa
St Marys County Airport, MD13 mi81 minN 410.00 miFair59°F35°F42%1019.6 hPa

Wind History from NUI (wind in knots)
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Last 24hrSW4CalmN3SE4CalmCalmCalmCalmN75N8N734N5N8NE8
G15
N11
G19
NE10
G16
N9
G17
N9
G17
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NE9N6
1 day ago--S7S5S6SE6SE7SE6SE6SE4SE6S5S8S6S8S5S5S7S7S5S5S6S6SW8S5
2 days agoNE10NE13NE10NE8NE7E8E7E5NE5E3NE4E3SE5E4SE5S5S5S5S9S7S9S13SW9SW14

Tide / Current Tables for Piney Point, Potomac River, Maryland
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Piney Point
Click for Map
Wed -- 03:26 AM EDT     1.78 feet High Tide
Wed -- 06:55 AM EDT     Sunrise
Wed -- 08:06 AM EDT     Moonrise
Wed -- 09:55 AM EDT     -0.04 feet Low Tide
Wed -- 03:58 PM EDT     1.64 feet High Tide
Wed -- 07:26 PM EDT     Sunset
Wed -- 09:24 PM EDT     Moonset
Wed -- 10:00 PM EDT     0.01 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.81.21.61.81.71.510.70.30.1-00.10.40.91.31.61.61.51.10.70.40.100.1

Tide / Current Tables for Point Patience, 0.1 mile southwest of, Maryland Current
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Point Patience
Click for MapFlood direction 315 true
Ebb direction 145 true

Wed -- 12:42 AM EDT     0.63 knots Max Flood
Wed -- 03:23 AM EDT     -0.00 knots Slack
Wed -- 06:55 AM EDT     Sunrise
Wed -- 07:17 AM EDT     -1.00 knots Max Ebb
Wed -- 08:06 AM EDT     Moonrise
Wed -- 11:29 AM EDT     0.00 knots Slack
Wed -- 01:12 PM EDT     0.46 knots Max Flood
Wed -- 03:31 PM EDT     -0.00 knots Slack
Wed -- 07:18 PM EDT     -0.84 knots Max Ebb
Wed -- 07:26 PM EDT     Sunset
Wed -- 09:24 PM EDT     Moonset
Wed -- 11:05 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.60.50.1-0.2-0.6-0.9-1-1-0.8-0.5-0.20.20.40.40.2-0.2-0.5-0.7-0.8-0.8-0.6-0.4-0

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for Baltimore, MD/Washington (19,4,5,8)
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Ground Weather Radar Station Dover AFB, DE
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weather_mapweather_map weather_map

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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.