Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Parole, 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 6:52AMSunset 7:28PM Wednesday March 29, 2017 1:15 AM EDT (05:15 UTC) Moonrise 7:06AMMoonset 8:25PM Illumination 3% 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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ANZ532 Chesapeake Bay From Sandy Point To North Beach- 1031 Pm Edt Tue Mar 28 2017
.small craft advisory in effect from 6 am edt Wednesday through Wednesday afternoon...
Rest of tonight..N winds 10 kt. Waves 1 to 2 ft. A slight chance of showers. Patchy fog. Vsby 1 to 3 nm.
Wed..N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Wed night..N winds 10 to 15 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 1 to 2 ft. A chance of rain.
Fri..SE winds 10 kt. Waves 1 to 2 ft. Rain.
Fri night..S winds 5 to 10 kt. Waves 1 to 2 ft. Showers likely.
Sat..N winds 5 to 10 kt. Waves 1 to 2 ft. Showers likely in the morning.
Sun..NE winds 5 to 10 kt. Waves 1 ft.
ANZ500 1031 Pm Edt Tue Mar 28 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build into the waters for midweek, followed by a low pressure system moving towards the region on Friday. This system will exit the region Saturday. Small craft advisories are possible Thursday night through Saturday.

7 Day Forecast for Marine Location Near Parole, MD
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location: 38.97, -76.55     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 290121
afdlwx
area forecast discussion
national weather service baltimore md/washington dc
921 pm edt Tue mar 28 2017

Synopsis
High pressure will build over the region through the midweek.

Another disturbance will approach the area late Thursday into
early Saturday.

Near term /until 7 am Wednesday morning/
The upper low/trough axis has pushed east, and is presently
moving off the delaware coast. Drier air has begun to infiltrate
the area, which has all but eliminated the thunderstorm
potential. However, there are still a few showers roaming about,
including a cell headed toward dc. Overall trend is down, which
is already reflected in the database.

In spite of the punch of drier air seen on water vapor, the
low-levels remain quite moist. It may take a while (as in the
pre-dawn hours) for dewpoints to truly drop. That suggests that
there may be a low cloud or fog issue to contend with overnight.

Mitigating factors tonight include north flow and residual
cloudcover. Have included a few hours of patchy fog after
midnight, but have it sinking south (into central virginia) by
daybreak.

Short term /7 am Wednesday morning through Friday/
High pressure builds in from the north on Wednesday with a
breezy north wind. Temperatures will not be as warm and the
humidity will be noticeably lower, but still on the nice side
for late march with 60s common. Winds will relax Wednesday night
as the pressure ridge pushes directly overhead, and with dry air
in place, we may radiate down towards freezing or even a bit
below in the colder spots.

By Thursday, clouds will start to increase as warm advection
begins ahead of the next approaching low pressure. The clouds
should limit the insolation and temps will get stuck in the
50s. Some rain may move into western areas late in the day, but
think for most areas, it will wait until after dark Thursday
night. Low pressure will slide east toward us through the day
Friday, with periods of rain looking likely. There is a good
southerly fetch with this system overruning the cool wedge at
the surface, so potential for some decent rain. Right now, it
appears the wedge will mostly hold with this system, so highs
Friday look to remain in the 50s.

Long term /Friday night through Tuesday/
The chance for rain showers linger Saturday before drier and
cooler air can filter into the region Saturday night when high
pressure works its way into the mid-atlantic.

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.

Aviation /01z Wednesday through Sunday/
Vfr flight conditions mainly prevail this evening outside of any
showers. However, these are on the decline, aside from one
passing south of dca through 02z. There is no additional shower
threat included in the tafs.

Drier air will slowly infiltrate from the north overnight.

However, there will still be a lot of low level moisture,
suggesting there may be a low cloud or fog threat. Mitigating
factors tonight include north flow and residual cloud cover.

Guidance suggesting that ceilings overnight will be more toward
low-end MVFR, and reflected that change in the 00z tafs. Have
also included a few hours of patchy fog after midnight, with a
trend highlighting the northern terminals (mrb/bwi) first, and
then sliding south toward cho. Did not go lower than MVFR in the
visibility forecast either. If the forecast GOES astray, the
most likely culprit will be a delay in the arrival of dry air,
which would mean that conditions could hit ifr pre-dawn.

Whatever does develop tonight will erode in the morning as
north/northwest winds pick up. Some gusts could reach 20 kt.VFR
conditions will continue until Thursday night, when the next
system will bring more rain and potential for ifr CIGS and vis.

MVFR conditions Saturday. Winds northwest 10 knots Saturday.

Vfr conditions evolving Saturday night. Winds northwest 5 knots
Saturday night.

Marine
One last shower is passing south of washington dc at this time.

After that, conditions will generally be benign through the
night. Guidance does not look that impressive with respect to
good mixing/channeling tonight, and have pulled the small craft
advisory for the overnight hours.

However, winds will pick up with sunrise tomorrow. Northerly
winds are expected to gust to 20 kt. Have left the small craft
advisory in place for the daytime hours on Wednesday. Winds
should diminish Wednesday night and remain sub SCA during the
day Thursday with high pressure passing the area.

Potential for small craft advisory conditions increases Thursday
night and Friday with increasing southeasterly winds ahead of an
approaching system. Winds will then turn north/northwesterly on
Saturday behind the system, with continued potential for sca
conditions.

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

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory from 6 am to 6 pm edt Wednesday for
anz530>543.

Synopsis... Rcm/hts
near term... Hts
short term... Rcm
long term... Klw
aviation... Hts/rcm/klw
marine... Hts/rcm/klw


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
APAM2 - 8575512 - Annapolis, MD 4 mi46 min 58°F 1014.2 hPa
TPLM2 - Thomas Point, MD 8 mi76 min NNE 8.9 G 8.9 56°F 47°F53°F
CPVM2 9 mi46 min 52°F 52°F
BSLM2 - Chesapeake Bay, MD 16 mi106 min N 4.1 61°F 1014 hPa56°F
FSNM2 17 mi46 min N 7 G 8 59°F 1014.3 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 17 mi46 min NNW 6 G 7 59°F 1014.6 hPa
BLTM2 - 8574680 - Baltimore, MD 21 mi46 min NNE 5.1 G 6 59°F 48°F1014.3 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 23 mi46 min NE 2.9 G 5.1 56°F 48°F1014.7 hPa
WASD2 - 8594900 - Washington, DC 26 mi46 min NNE 4.1 G 9.9 63°F 51°F1014.4 hPa
44062 - Gooses Reef, MD 29 mi36 min NE 7.8 G 9.7 52°F 1015 hPa
CA2 - 8571892 - Cambridge, MD 37 mi46 min N 5.1 G 6 55°F 48°F1013.3 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 40 mi46 min N 8.9 G 12 52°F 1014.7 hPa
SLIM2 - 8577330 - Solomons Island, MD 45 mi46 min N 6 G 8.9 58°F 48°F

Wind History for Francis Scott Key Bridge NE Tower, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Annapolis, United States Naval Academy, MD4 mi22 minNNW 510.00 miOvercast58°F53°F84%1014.6 hPa
Bay Bridge Field, MD12 mi41 minN 47.00 miFog/Mist57°F51°F82%1014.9 hPa
Fort Meade / Tipton, MD14 mi37 minN 310.00 miOvercast59°F51°F77%1015.6 hPa
Baltimore, Baltimore-Washington International Airport, MD16 mi22 minVar 310.00 miOvercast59°F54°F83%1014.5 hPa
Camp Springs / Andrews Air Force Base, MD20 mi78 minN 710.00 miOvercast60°F53°F78%1014.8 hPa
College Park Airport, MD20 mi35 minN 310.00 miOvercast60°F52°F75%1014.9 hPa
Baltimore, Inner Harbor, MD22 mi82 minno data mi60°F52°F75%1014.4 hPa

Wind History from NAK (wind in knots)
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Last 24hrS5SE3E4SE6SE5SE4SE4S8SE6E4SE5SE7E7NW11NW8NW7NW5NE4CalmN4N6N5N7N5
1 day agoE4E4E4E3CalmNW4CalmSE3E4SE6SE7SE6SE8SE7E5E3E3SE3CalmCalmSE4SE4S5SE5
2 days agoE8
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Tide / Current Tables for Gingerville Creek, South River, Chesapeake Bay, Maryland
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Gingerville Creek
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Wed -- 12:15 AM EDT     0.05 feet Low Tide
Wed -- 06:06 AM EDT     1.40 feet High Tide
Wed -- 06:55 AM EDT     Sunrise
Wed -- 08:05 AM EDT     Moonrise
Wed -- 01:08 PM EDT     -0.01 feet Low Tide
Wed -- 06:36 PM EDT     1.13 feet High Tide
Wed -- 07:27 PM EDT     Sunset
Wed -- 09:25 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.10.30.611.31.41.31.10.80.50.30.1-00.10.30.60.91.11.110.70.50.2

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
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Wed -- 12:39 AM EDT     -0.87 knots Max Ebb
Wed -- 03:36 AM EDT     0.00 knots Slack
Wed -- 06:54 AM EDT     Sunrise
Wed -- 06:54 AM EDT     1.06 knots Max Flood
Wed -- 08:05 AM EDT     Moonrise
Wed -- 10:09 AM EDT     -0.00 knots Slack
Wed -- 01:18 PM EDT     -1.00 knots Max Ebb
Wed -- 04:36 PM EDT     0.00 knots Slack
Wed -- 07:24 PM EDT     0.76 knots Max Flood
Wed -- 07:26 PM EDT     Sunset
Wed -- 09:24 PM EDT     Moonset
Wed -- 10:17 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.8-0.9-0.7-0.30.20.611.10.90.60.1-0.4-0.8-1-0.9-0.7-0.30.20.50.70.70.50.1-0.3

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 (1,6,7,8)
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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.