Marine Weather and Tides
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 6:38AM||Sunset 5:49PM||Saturday February 24, 2018 3:01 AM EST (08:01 UTC)||Moonrise 12:12PM||Moonset 1:57AM||Illumination 66%|
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|ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 950 Pm Est Fri Feb 23 2018 |
Overnight..SW winds around 5 kt. Waves 2 ft or less. Areas of drizzle and fog. Vsby 1 to 3 nm.
Sat..NW winds around 5 kt, becoming ne in the afternoon. Waves 2 ft or less. Widespread fog early in the morning, then patchy fog late in the morning. Widespread drizzle early in the morning. A chance of rain in the afternoon. Vsby 1 to 3 nm in the morning.
Sat night..E winds 5 to 10 kt. Waves 2 ft or less. Rain.
Sun..SE winds 5 to 10 kt with gusts up to 20 kt, becoming sw 10 to 15 kt with gusts up to 20 kt early in the afternoon, then diminishing to 5 to 10 kt with gusts up to 20 kt late. Waves 2 ft or less, then around 3 ft early in the afternoon, then 2 ft or less early in the afternoon. Rain likely.
Sun night..W winds 5 to 10 kt, becoming nw after midnight. Waves 2 ft or less. A chance of showers in the evening.
Mon..NW winds 5 to 10 kt. Waves 2 ft or less.
Mon night..NW winds 5 to 10 kt. Waves 2 ft or less.
Tue..NW winds around 5 kt, becoming W in the afternoon. Waves 2 ft or less.
Tue night..SW winds 5 to 10 kt. Waves 2 ft or less.
Wed..S winds 5 to 10 kt. Waves 2 ft or less.
Wed night..S winds 5 to 10 kt. Waves 2 ft or less. A chance of rain.
|ANZ400 950 Pm Est Fri Feb 23 2018 |
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A warm front will move northward through our area overnight followed by a cold front on Saturday. The front then stalls near or across our southern areas on Saturday before lifting northward as a warm front late Saturday into Sunday. Another low pressure system will cross to the north of our area with its attendant cold front moving through Sunday night. High pressure will build into the region through midweek. A backdoor cold front will drop down through the region on Wednesday, followed by an area of low pressure crossing the area Thursday into Friday.
7 Day Forecast for Marine Location Near Shiloh , NJHourly EDIT Help
Area Discussion for - Philadelphia/Mount Holly, PA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus61 kphi 240245|
area forecast discussion
national weather service mount holly nj
945 pm est Fri feb 23 2018
A warm front will move northward through our area overnight
followed by a cold front on Saturday. The front then stalls near
or across our southern areas on Saturday before lifting
northward as a warm front late Saturday into Sunday. Another low
pressure system will cross to the north of our area with its
attendant cold front moving through Sunday night. High pressure
will build into the region through midweek. A backdoor cold
front will drop down through the region on Wednesday, followed
by an area of low pressure crossing the area Thursday into
Near term until 6 am Saturday morning
High pressure over the northern new england will drift out to
sea overnight as low pressure over the great lakes moves into
eastern canada. As it does, it will drag a cold front towards
the region that will not clear until Saturday morning. As a
result, much of the northeast and mid-atlantic remains situated
in a raw, cool, damp air mass.
With abundant moisture across the region, can expect overcast
skies along with fog and areas of drizzle overnight.
Temperatures are anticipate to rise slowly during the night.
Short term 6 am Saturday morning through 6 pm Saturday
Fog and drizzle will gradually dissipate in the morning as the
aforementioned cold front passes through the region. The
pressure gradient will be light behind the front, but winds
shift to the north, allowing for a dryer airmass to spread into
the region. Though skies remain cloudy throughout much of the
day, the cloud deck should lift in the afternoon.
High pressure passes north of the area, but another low will
develop over the plains states, and a warm front develops out
ahead of that low. That warm front lifts to the north and east
by late Saturday, and more rain will move into western portions
of the region as it approaches.
Although cloudy, it should be quite warm on Saturday with highs
generally in the 40s in the poconos, but in the mid to upper
50s for southeast pa and much of nj. Parts of the DELMARVA could
get into the low 60s.
Long term Saturday night through Friday
Unsettled weather will continue through the weekend before a
quiet period begins for the early through mid week period.
Saturday night through Sunday night... An unsettled period for
the region as several systems impact our areas weather.
A stalled cold frontal boundary will start to lift northward as
a warm front late Saturday into Sunday. Another low pressure
system will cross to the north of our area, dragging a cold
front across the region Sunday night.
Rain will continue across the region Saturday night through
Sunday, especially areas north and west of the i-95 corridor.
Guidance shows around 1-2 inches of rain will fall through the
weekend, which may cause some localized flooding issues,
especially in low lying and poor drainage areas. Do not see the
need for a flood watch at this time. Even though rain may be
heavy at times, the rain will fall over a fairly long period of
time and, although river levels will rise, little to no impacts
on the mainstem rivers is expected through the weekend. For more
info, see the hydrology section below.
Monday through Wednesday... As we like to say, big bubble, no
trouble! High pressure builds across the region allowing for the
area to dry out and warm up a bit. A few light showers may
remain early on Monday across DELMARVA but for the most part
expect the region to stay dry. Temperatures are expected to rise
back into the upper 40s to mid to upper 50s across the area. A
backdoor cold front will drop down through the area Wednesday
but cooler air will be slow to arrive and highs are likely to
remain well into the 50s. The cold front is expected to have
limited moisture with it and we have kept the forecast dry.
Wednesday night through Friday... The high breaks down and
slides to the southeast of the area. Meanwhile, an area of low
pressure will develop across the midwest and track to the east.
This system will push a warm front into DELMARVA on Thursday. An
area of low pressure is forecast to develop along this boundary
and then track towards the coast through Thursday night. Lots
of uncertainty, especially with front locations and timing, but
another round of rain is likely across parts of the area. With
temps a bit colder across the northern zones, a few flakes
cannot be ruled out for early Thursday and early Friday.
Aviation 03z Saturday through Wednesday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.
Tonight... Ifr lifr conditions in fog and stratus. Lgt vrb
winds. High confidence.
Saturday... Morning fog stratus with ifr lifr conditions
gradually improving toVFR by afternoon. Rain moves into western
terminals late in the day with a return to sub-vfr conditions.
Light north winds. High confidence.
Saturday night... Mainly ifr conditions expected as rain
overspreads the area. Northeast to east winds around 8 to 12|
knots. Moderate confidence.
Sunday... Ifr conditions expected with limited improvement
through the day. Confidence is low that we will return toVFR
during the day. East to southeast winds will become southwest to
west by the afternoon. Moderate confidence.
Sunday night... Improving toVFR through the night. Rain showers
will taper off through Sunday night and conditions are expected
to improve as the cold front crosses the area. High confidence.
Monday through Tuesday...VFR conditions expected. West to
northwest winds becoming gusty to around 20 knots on Monday.
Wednesday...VFR conditions expected. West to southwest winds,
generally around 10 knots or less, becoming more south to
southeast late. High confidence.
Sub-sca conditions on the ocean and de bay through Saturday.
Vsby restrictions likely in fog and drizzle through Saturday
Saturday night... Sub-advisory conditions are expected on the
Sunday and Sunday night... Seas are expected to build and exceed
5 feet on the ocean on Sunday. Winds also pick up through the
day Sunday with gusts of 25 to 30 knots possible. Conditions
will improve late Sunday night. A small craft advisory will
likely be needed.
Monday through Wednesday... Sub-advisory conditions are expected
on the area waters.
Periods of rain through the weekend could result in minor and
poor drainage flooding. The heaviest rain is expected Saturday
night and Sunday, when up to additional inch of rain will fall.
By the time the rain ends Monday morning, the region will have
received between 1 and 2 inches of rain since Thursday, with the
highest amounts falling over the northern third of the forecast
area. By Sunday night and Monday, there will be rises on areas
rivers and streams, with some possibly approaching bankful.
Of note will be how much rain falls over the susquehanna, as
there is the potential for inconvenience flooding below the
conowingo dam on Monday.
**top 3 warmest february on record and top 10 wettest february
february projected climate ranking as of noon today based on
our mid shift fcst through the 28th and mins this morning; and
for rainfall, amounts through noon today. Rdg and ttn not
included due to too much missing data.
Abe #3 warmest 38.2 or 7.5f warmer than the 30.7 norm.
acy #1 warmest 43.0 or 7.7f warmer than the 35.3 norm. Tied
with last year. #2 40.6 in 1954
ilg #3 warmest 41.6 or 6.6f warmer than the 35.0 norm.
phl #3 warmest 42.0 or 6.3f warmer than the 35.7 norm.
water equivalent monthly pcpn
phl ranked #10 with 5.28" (0.21 as of noon daily)
ilg ranked #8 with 5.49" (0.49 as of noon daily)
abe ranked #16 with 4.29" (0.07 as of noon daily)
acy ranked #2 with 6.12" (0.28" as of noon daily)
wettest is 6.50-2010. Our expectation is that acy will exceed the
previous all time record rainfall for february, by the end of the
Phi watches warnings advisories
near term... Iovino mps
short term... Mps
long term... Meola
aviation... Iovino meola mps
marine... Iovino meola mps
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|RDYD1 - 8551910 - Reedy Point, DE||17 mi||43 min||45°F||43°F||1022.7 hPa|
|DELD1 - 8551762 - Delaware City, DE||19 mi||43 min||W 1.9 G 6||45°F||41°F||1023.1 hPa|
|DRSD1 - Delaware Reserve, DE||21 mi||151 min||SW 2.9||46°F||1024 hPa||46°F|
|CHCM2 - 8573927 - Chesapeake City, MD||26 mi||49 min||SSW 5.1 G 7||46°F||43°F||1023.1 hPa|
|MRCP1 - 8540433 - Marcus Hook, PA||30 mi||43 min||45°F||45°F||1022.7 hPa|
|BRND1 - 8555889 - Brandywine Shoal Light, DE||30 mi||49 min||W 8.9 G 9.9||46°F||1023.9 hPa|
|CMAN4 - 8536110 - Cape May, NJ||35 mi||43 min||WSW 5.1 G 6||44°F||44°F||1023.1 hPa|
|PHBP1 - 8545240 - Philadelphia, PA||40 mi||43 min||45°F||42°F||1022.4 hPa|
|LWSD1 - 8557380 - Lewes, DE||43 mi||43 min||W 6 G 7||48°F||43°F||1023.2 hPa|
|BDSP1||44 mi||43 min||44°F||47°F||1022.6 hPa|
|JCRN4 - Jacques Cousteau Reserve, NJ||48 mi||91 min||WSW 5.1||42°F||1023 hPa||42°F|
|TCBM2 - 8573364 - Tolchester Beach, MD||49 mi||44 min||S 7 G 8||45°F||44°F||1023.3 hPa|
|ACYN4 - 8534720 - Atlantic City, NJ||49 mi||43 min||44°F||41°F||1023 hPa|
Wind History for Ship John Shoal, NJ(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Millville, Millville Municipal Airport, NJ||15 mi||68 min||WSW 9||10.00 mi||Overcast||45°F||44°F||97%||1023.1 hPa|
|Dover Air Force Base, DE||18 mi||66 min||SSW 7||2.50 mi||Fog/Mist||47°F||46°F||99%||1023.3 hPa|
Wind History from MIV (wind in knots)
|1 day ago||N||N||NE||NE||NE||NE||E||E||E||E|
|2 days ago||S||SW||SW|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Greenwich Pier |
Click for Map
Sat -- 01:57 AM EST Moonset
Sat -- 04:43 AM EST 5.42 feet High Tide
Sat -- 06:41 AM EST Sunrise
Sat -- 11:53 AM EST 0.30 feet Low Tide
Sat -- 12:12 PM EST Moonrise
Sat -- 05:30 PM EST 4.82 feet High Tide
Sat -- 05:48 PM EST Sunset
Sat -- 11:58 PM EST 0.16 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Tindalls Wharf |
Click for Map
Sat -- 01:56 AM EST Moonset
Sat -- 06:18 AM EST 5.91 feet High Tide
Sat -- 06:40 AM EST Sunrise
Sat -- 12:12 PM EST Moonrise
Sat -- 12:36 PM EST 0.30 feet Low Tide
Sat -- 05:47 PM EST Sunset
Sat -- 07:04 PM EST 5.29 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of Mid-Atlantic EDIT
Wind Forecast for Philadelphia/Mount Holly, PA (3,6,7,8)(on/off)  Help
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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.