Tuesday, January16, 2018 L-36.com


Marine Weather and Tides
Bethany Beach, DE

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 7:15AMSunset 5:09PM Tuesday January 16, 2018 4:36 AM EST (09:36 UTC) Moonrise 6:48AMMoonset 4:55PM Illumination 0% Phase: New Moon; Moon at 29 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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ANZ455 Coastal Waters From Cape May Nj To Cape Henlopen De Out 20 Nm- Coastal Waters From Cape Henlopen To Fenwick Island De Out 20 Nm- 428 Am Est Tue Jan 16 2018
.small craft advisory in effect through this afternoon...
Today..NE winds 5 to 10 kt. Seas 3 to 5 ft. SWell mainly from the E with a dominant period of 9 seconds.
Tonight..N winds 5 to 10 kt, becoming nw 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. SWell mainly from the E with a dominant period of 10 seconds. A chance of rain late in the evening. A chance of rain and snow after midnight.
Wed..NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. SWell mainly from the se with a dominant period of 11 seconds. A chance of snow. Vsby 1 to 3 nm in the late morning and early afternoon.
Wed night..NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. SWell mainly from the se with a dominant period of 9 seconds. Light freezing spray. Vsby 1 to 3 nm.
Thu..W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Light freezing spray in the morning.
Thu night..W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft.
Fri..W winds 5 to 10 kt. Seas 3 to 4 ft.
Fri night..SW winds 5 to 10 kt. Seas around 3 ft.
Sat..SW winds around 10 kt. Seas 2 ft or less, then around 3 ft in the afternoon.
Sat night..SW winds around 10 kt. Seas around 3 ft.
ANZ400 428 Am Est Tue Jan 16 2018
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A ridge of high pressure will weaken across the area today. A low pressure system and front will approach from the great lakes region tonight. Another low will develop off the coast and affect the weather tonight and early Wednesday. More high pressure will build towards the area late this week and remain for the weekend.

7 Day Forecast for Marine Location Near Bethany Beach, DE
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location: 38.53, -75.05     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 160919
afdphi
area forecast discussion
national weather service mount holly nj
419 am est Tue jan 16 2018

Synopsis
A ridge of high pressure will weaken across the area today. A low
pressure system and front will approach from the great lakes region
tonight. Another low will develop off the coast and affect the
weather tonight and early Wednesday. More high pressure will build
towards the area late this week and remain for the weekend. Low
pressure and a cold front will move towards the middle atlantic
region for the start of next week.

Near term until 6 pm this evening
Weak low pressure over the great lakes will push a cold front toward
our region today. Meanwhile, a secondary low is forecast to begin
developing off CAPE hatteras this afternoon.

We continue to expect snow today in parts of eastern pennsylvania
and northern new jersey. The remainder of our forecast area should
remain mostly cloudy with no precipitation during the daylight hours.

An initial shot of light snow is anticipated to affect berks county,
the lehigh valley, the poconos and perhaps the northwestern edge of
new jersey this morning. Any accumulation should be around an inch
or less. The more substantial snow is expected to move into those
areas from the northwest during the course of the afternoon.

We have made some adjustments to the timing of the winter weather
advisory, delaying the start time in all but berks county, the
lehigh valley and the poconos.

The wind is expected to remain fairly light today. High temperatures
should favor the 30s in eastern pennsylvania and northern new
jersey. Readings are forecast to rise into the lower 40s on the
coastal plain.

Short term 6 pm this evening through Thursday
The secondary low is forecast to strengthen gradually as it moves
northward off the coasts of delaware and new jersey tonight, then
over the coastal waters of new england on Wednesday. The system will
likely throw some precipitation back over our region for tonight and
Wednesday morning.

The precipitation type will favor snow. However, the boundary layer
is expected to be warm enough for some rain on the coastal plain
during the first half of the nighttime period.

We continue to expect a substantial snow in the northern part of our
forecast area. Amounts of 4 to 6 inches are anticipated for the
poconos with totals tapering down to perhaps an inch or two in the
philadelphia metropolitan area and southern new jersey. Little or
no snow accumulation is expected for the DELMARVA south of the canal
and for far southern new jersey.

The precipitation is expected to be mainly off our coast by
Wednesday afternoon with some clearing late in the day.

A light wind for much of tonight should become northwest around 10
mph toward daybreak on Wednesday. The northwest wind is forecast to
increase to 10 to 15 mph on Wednesday with some gusts near 20 mph.

Low temperatures tonight should be mainly in the 20s. Readings
should recover only slightly on Wednesday with highs mostly in the
upper 20s and lower 30s.

Long term Thursday night through Monday
The upper low that affected the weather in the near short term parts
of the forecast will be moving though the tidewater area and it will
take the last of the precip with it. We only has a few lingering
showers Wed evening across the ERN srn most parts of the area.

Sprawling high pressure from the southern mississippi valley will
begin to move into the area. Dry weather is expected for Wed night
and into Thu Fri as the high builds. Temperatures will be below
normal until Friday, when readings will be near normal.

The high continues to affect the weather this weekend, so more fair
weather is expected. The airmass will moderate as the upper ridge
continues to build. Temperatures will be closer to 10 degrees above
normal by Saturday and the near 15 degrees above normal by Sunday.

The next low pressure system will be rather intense as it moves from
the plains states to the great lakes area early next week. We will
be on the warmer side of the system, so mostly rain is expected at
this time. Temperatures will still be much above normal Mon before
returning closer to normal tue. High chance and low likely pops (srn
poconos) are in the fcst at this time. Pops decrease back to slgt
chc for Tuesday after the cold front crosses the area.

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

Today... MVFR andVFR ceilings today. Snow around krdg and kabe may
briefly reduce conditions to ifr early this morning and again late
this afternoon.

Tonight... Snow developing with conditions lowering to ifr.

Wednesday... The snow is expected to end in the morning with
conditions improving toVFR for the afternoon hours.

Outlook...

wed night...VFR. Fair with W to NW winds 5 to 10 knots.

Thu thru sat...VFR. NW W winds Thu Fri and SW winds sat.

Marine
A small craft advisory will remain in effect for our ocean waters
from manasquan inlet to fenwick island until 6:00 pm. Wave heights
on our outer waters are expected to be around 5 feet due to the
residual onshore flow.

There should be a lull early tonight. Low pressure off the coasts of
delaware and new jersey tonight should strengthen as it moves
northeastward on Wednesday. Wind speeds and wave heights are
forecast to increase gradually from late tonight into Wednesday.

Outlook...

wed night through Thursday: SCA conditions on the ocean with sub-sca
across delaware bay. Fair weather.

Thursday night: SCA conditions diminishing. Fair weather.

Friday through Saturday: sub-sca conditions. Fair weather.

Hydrology
An ice jam continues along the delaware river at trenton, and
flooding has been reported adjacent to the river in bucks and
mercer counties. Several road closures are in place between
morrisville and yardley in pa and along nj state highway 29 in
trenton.

The ice is having an impact on the ability to accurately
forecast the river level in the trenton vicinity. Please use any
forecast levels with caution.

If you live near the delaware river in the trenton and yardley
vicinity, pay special attention to any additional information
that is issued regarding the delaware river. Additional ice jams
may form next weekend when milder conditions arrive.

Phi watches warnings advisories
Pa... Winter weather advisory until 6 am est Wednesday for paz054-
055-060>062.

Winter weather advisory from 4 pm this afternoon to 6 am est
Wednesday for paz101-103-105.

Nj... Winter weather advisory from 4 pm this afternoon to 9 am est
Wednesday for njz008>010.

Winter weather advisory from 8 am this morning to 9 am est
Wednesday for njz001-007.

De... None.

Md... None.

Marine... Small craft advisory until 6 pm est this evening for
anz451>455.

Synopsis... O'hara
near term... Iovino
short term... Iovino
long term... O'hara
aviation... Iovino o'hara
marine... Iovino o'hara
hydrology... Cms klein


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OCIM2 - 8570283 - Ocean City Inlet, MD 14 mi54 min N 7 G 8 32°F 33°F1031.1 hPa
LWSD1 - 8557380 - Lewes, DE 18 mi54 min N 8 G 8.9 31°F 34°F1031.2 hPa
44009 - DELAWARE BAY 26 NM Southeast of Cape May, NJ 19 mi46 min NE 9.7 G 12 42°F 42°F6 ft1030.6 hPa (-0.3)35°F
CMAN4 - 8536110 - Cape May, NJ 31 mi48 min N 1 G 2.9 28°F 34°F1030.9 hPa
BRND1 - 8555889 - Brandywine Shoal Light, DE 32 mi54 min NNE 8.9 G 9.9 30°F 1031.8 hPa
DRSD1 - Delaware Reserve, DE 44 mi126 min NNW 2.9 29°F 1031 hPa29°F

Wind History for Ocean City Inlet, MD
(wind in knots)    EDIT      (on/off)   Help
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N14
G20
NE13
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G21
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G15
NE8
G12
N8
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NE6
G11
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N21
N17
G22
N14
G18
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G23
N14
G18
N12
G18
NE11
G15
NE10
G14
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NE8
G12
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N12
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N9
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N6
NW6
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G11
NE6
G12
NE6
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N9
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N12
G17
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SW15
G20
SW10
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N16
N14
G18
NW15
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G21
NW14
G19
N15
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N13
G18
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G24
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G26
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G26
N16
N14
G20
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G23
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G22
N19
G24
N17
G21

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ocean City, Ocean City Municipal Airport, MD16 mi44 minNNW 64.00 miFog/Mist29°F28°F100%1030.7 hPa
Georgetown - Delaware Coastal Airport, DE20 mi43 minNNW 310.00 miFair27°F25°F92%1031.3 hPa

Wind History from OXB (wind in knots)
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Last 24hrN11N9NE13
G20
N11
G23
N12N11N9N9N8N8N8N7N7NE7NE9N6N9N4N4N3NW3NW3NW4NW6
1 day agoN9
G21
N14
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N12
G19
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N14N12
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N10N11N8N8N7NW7NW6NW6N5NW7N7N7NW8N8N12
2 days agoSW13
G21
SW12SW12
G20
NW13
G24
NW13
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NW13
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N15
G24
N13N10
G18
N12NW13NW15
G20
NW12
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NW13N13N14
G19
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N13
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N16N15
G23

Tide / Current Tables for Inlet (bridge), Indian River, Delaware
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Inlet (bridge)
Click for Map
Tue -- 12:47 AM EST     -0.02 feet Low Tide
Tue -- 06:48 AM EST     Moonrise
Tue -- 07:16 AM EST     Sunrise
Tue -- 07:49 AM EST     2.90 feet High Tide
Tue -- 01:27 PM EST     -0.18 feet Low Tide
Tue -- 04:54 PM EST     Moonset
Tue -- 05:04 PM EST     Sunset
Tue -- 08:12 PM EST     2.38 feet High Tide
Tue -- 09:18 PM EST     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.1-00.20.71.31.92.42.82.92.51.810.4-0.1-0.10.20.71.31.82.22.42.21.71

Tide / Current Tables for Delaware Bay Entrance, Delaware Current
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Delaware Bay Entrance
Click for Map
Tue -- 12:18 AM EST     -1.05 knots Max Ebb
Tue -- 02:56 AM EST     0.00 knots Slack
Tue -- 06:09 AM EST     1.40 knots Max Flood
Tue -- 06:48 AM EST     Moonrise
Tue -- 07:16 AM EST     Sunrise
Tue -- 09:28 AM EST     -0.00 knots Slack
Tue -- 12:57 PM EST     -1.38 knots Max Ebb
Tue -- 04:09 PM EST     0.00 knots Slack
Tue -- 04:54 PM EST     Moonset
Tue -- 05:03 PM EST     Sunset
Tue -- 06:51 PM EST     1.09 knots Max Flood
Tue -- 09:18 PM EST     New Moon
Tue -- 09:49 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1-1-0.500.61.11.41.30.90.3-0.3-0.9-1.2-1.4-1.2-0.7-0.10.511.10.90.5-0.1-0.6

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 Philadelphia/Mount Holly, PA (4,6,7,8)
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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.