Friday, December15, 2017 L-36.com


Marine Weather and Tides
Wilmington, 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 4:40PM Friday December 15, 2017 10:19 PM EST (03:19 UTC) Moonrise 4:36AMMoonset 3:18PM Illumination 5% Phase: Waning Crescent; Moon at 27 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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ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 918 Pm Est Fri Dec 15 2017
.small craft advisory in effect from 1 am est Saturday through Saturday afternoon...
Overnight..W winds 10 to 15 kt, increasing to 15 to 20 kt. Gusts up to 30 kt. Waves 2 ft or less, then around 3 ft.
Sat..W winds 15 to 20 kt with gusts up to 25 kt. Waves around 3 ft early in the morning, then 2 ft or less.
Sat night..W winds 10 to 15 kt with gusts up to 20 kt, becoming nw 5 to 10 kt late in the evening, then becoming ne after midnight. Waves 2 ft or less.
Sun..E winds around 5 kt, becoming S in the late morning and afternoon. Waves 2 ft or less.
Sun night..S winds around 5 kt, becoming W after midnight. Waves 2 ft or less.
Mon..W winds around 5 kt. Waves 2 ft or less.
Mon night..SW winds 5 to 10 kt. Waves 2 ft or less.
Tue..SW winds 5 to 10 kt. Waves 2 ft or less.
Tue night..W winds 10 to 15 kt. Waves around 3 ft.
Wed..NW winds 15 to 20 kt. Waves around 3 ft.
Wed night..NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves around 3 ft.
ANZ400 918 Pm Est Fri Dec 15 2017
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. Surface low pressure, well off the delmarva, will track northeast into the open atlantic overnight. High pressure, centered over the southeastern united states, will nose into the region early on Saturday. This will be short-lived as a cold front, coming in from the north, will move into or through the area on Saturday night and Sunday. This front will then stall before lifting northward as a warm front Sunday night and Monday. A cold front will progress through the region around the middle of next week. Another system may affect the area near the close of next week.

7 Day Forecast for Marine Location Near Wilmington, DE
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location: 39.73, -75.56     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 160214
afdphi
area forecast discussion
national weather service mount holly nj
914 pm est Fri dec 15 2017

Synopsis
Surface low pressure, well off the delmarva, will track
northeast into the open atlantic overnight. High pressure,
centered over the southeastern united states, will nose into the
region early on Saturday. This will be short-lived as a cold
front, coming in from the north, will move into or through the
area on Saturday night and Sunday. This front will then stall
before lifting northward as a warm front Sunday night and
Monday. A cold front will progress through the region around the
middle of next week. Another system may affect the area near
the close of next week.

Near term until 6 am Saturday morning
The remainder of the winter weather advisory has expired. The
back edge of the accumulating snow was off the coast at 9:00 pm.

Snowfall accumulations in the 1.5 to 3.5 inch range were
common, except in the poconos and far northern new jersey and in
parts of northeastern maryland, central and southern delaware,
and far southern new jersey where totals were less than an inch.

Gradual clearing is anticipated for tonight as low pressure
moves farther out to sea.

A west wind should increase to 5 to 10 mph. Minimum
temperatures are forecast to favor the teens in much of eastern
pennsylvania and northern new jersey, and the lower and middle
20s in southern new jersey and on the upper delmarva.

Short term 6 am Saturday morning through 6 pm Saturday
Shortwave energy rotating around the based of the large scale
trough is forecast to move across the great lakes and northeast
states on Saturday. At the surface, a weak area of low pressure
will pass to our north but a northwest flow behind this
disturbance will help steer a cold front southward into the i-80
corridor by the late afternoon.

Even with the deepest, more organized synoptic lift staying to
our north, models show a ribbon of low-level
convergence frontogenetical lift near the front that could
support some snow shower activity across the i-80 and i-78
corridor during the mid to late afternoon. We are currently only
expecting minor accumulations. Elsewhere, expect clouds to
increase as the day progresses.

Forecast high temperatures range from the lower 30s across the
i-80 corridor to the lower 40s in DELMARVA and coastal nj.

Long term Saturday night through Friday
Overview... The period starts with a deepening surface low off
delmarva. This low will track to the northeast overnight into
the open atlantic. Surface high pressure, centered across the
deep south, will push up into the mid-atlantic by daybreak
Saturday. This high won't hang around long. A cold front, coming
in from the north, will move into or through the forecast area
Saturday night into Sunday. This front will back up as a warm
front Sunday night into Monday. Another cold front will push
through the region in the Tuesday Wednesday timeframe. Surface
high pressure is expected on Thursday. This will elide to a warm
front later on Thursday into Friday and a cold front very late
in the period. Both of these fronts are associated with low
pressure moving across the eastern great lakes.

Temperatures... For reference, normals for kphl are around 30
and in the middle 40s. Sunday will be slightly below normal.

Monday and Tuesday will be above normal with some mid-50s
possible across portions of the coastal plain. Wednesday looks
to be about normal with Thursday slightly below. Friday will
rebound once again with above normal temperatures. Once again,
portions of the coastal plain could see temperatures top out in
the middle 50s.

Precipitation... Small pops have been inserted late Sunday and
maintained into Sunday night. This associated with the warm
front in the vicinity. Small pops will continue into Monday and
through Tuesday night. Wednesday and Thursday will be pop free
behind the mid-week cold front. Some chance pops will be
inserted into the grids on Friday.

Winds... Fairly benign through the period. Moist noticeable
winds will be right ahead and behind the cold front Tuesday and
Wednesday.

Impacts... While the forecast will see a roller coaster week
with temperatures and multiple chances of precipitation, none
are expected to create widespread hazardous weather at this
time.

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

Overnight... Improving toVFR. Clearing. West wind 4 to 8 knots.

Saturday...VFR. Mostly clear in the morning, then increasing
clouds. West to southwest wind 5 to 10 knots.

Outlook...

Saturday night... GenerallyVFR with light and variable winds.

Medium confidence.

Sunday... GenerallyVFR. Light northeast winds to start the day
and southeast to finish. Increasing clouds and a small chance of
precipitation later in the day. Medium confidence.

Sunday night and Monday... GenerallyVFR, though brief sub-vfr
conditions are possible with light rain or snow, especially
north of phl. Light winds generally transitioning from southeast
to southwest during the period. Low confidence.

Monday night and Tuesday: sub-vfr conditions possible, with
scattered showers during the period, especially on Tuesday.

Winds primarily southwest at 5 to 15 kts. Medium confidence.

Tuesday night and Wednesday... GenerallyVFR. Decreasing clouds
and showers on Tuesday night. No precipitation expected on
Wednesday. Winds west or northwest 10 to 20 mph. Medium
confidence.

Marine
Nw winds expected to increase as low pressure intensifies while
tracking to our east overnight. Opted for a SCA instead of a
glw for tonight and Saturday with winds generally in the 25-30
kt range. However, a brief ramp up in winds are expected late
tonight when pressure rises behind the offshore low are
greatest. Isolated gusts to near gale force at our offshore
buoys is certainly a possibility.

Outlook...

Saturday night: residual advisory-level northwest winds in the
evening will diminish overnight. Gale force gusts during the
evening can't be ruled out. Seas below criteria.

Sunday and Sunday night: sub small craft advisory conditions.

No headlines anticipated. There may be some light rain in the
afternoon and overnight with potential for some visibility
restrictions.

Monday and Monday night: sub small craft advisory conditions.

No headlines anticipated. Scattered showers, at times, could
create visibility restrictions.

Tuesday: southwest winds increasing to near advisory levels by
afternoon with seas also building. A chance of showers and
visibility restrictions.

Tuesday night and Wednesday... Small craft advisory conditions
expected due to northwest winds behind the front and building
seas.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... Small craft advisory until 1 am est Sunday for anz452>455.

Small craft advisory until 1 am est Sunday for anz450-451.

Small craft advisory from 1 am to 6 pm est Saturday for anz430-
431.

Synopsis... Kruzdlo
near term... Iovino
short term... Klein
long term... Kruzdlo
aviation... Iovino kruzdlo
marine... Klein kruzdlo


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MRCP1 - 8540433 - Marcus Hook, PA 9 mi49 min 24°F 42°F1015 hPa
DELD1 - 8551762 - Delaware City, DE 10 mi49 min W 1.9 G 4.1 22°F 37°F1015.6 hPa
RDYD1 - 8551910 - Reedy Point, DE 12 mi49 min 22°F 41°F1015.3 hPa
CHCM2 - 8573927 - Chesapeake City, MD 19 mi49 min WSW 1.9 G 2.9 24°F 38°F1016 hPa
PHBP1 - 8545240 - Philadelphia, PA 26 mi49 min 24°F 40°F1014.7 hPa
BDSP1 31 mi49 min 24°F 42°F1014.9 hPa
SJSN4 - 8537121 - Ship John Shoal, NJ 31 mi49 min W 11 G 13 26°F 43°F1015.3 hPa
BDRN4 - 8539094 - Burlington, Delaware River, NJ 44 mi49 min WNW 4.1 G 5.1 23°F 37°F1014.4 hPa
DRSD1 - Delaware Reserve, DE 45 mi109 min W 1.9 25°F 1015 hPa24°F

Wind History for Delaware City, DE
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wilmington, New Castle County Airport, DE4 mi28 minW 36.00 miFog/Mist22°F19°F92%1015.7 hPa
Philadelphia, Philadelphia International Airport, PA20 mi25 minW 910.00 miPartly Cloudy24°F19°F81%1015.3 hPa
Chester County Airport, PA24 mi24 minVar 36.00 miFog/Mist21°F21°F100%1014.2 hPa

Wind History from ILG (wind in knots)
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Last 24hrNW7NW5N5CalmCalmCalmCalmN3CalmCalmSE5S3E3E3NE3NE5N4N5NW4CalmNW4CalmW6W3
1 day agoS6S12S10S11S8S6S3W4W5SW6W9NW19
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NW13NW14NW16NW12NW13NW8NW9NW5NW5NW5NW5
2 days agoNW14
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W18W16W7SW7SW3SW4S5S6

Tide / Current Tables for Millside, RR. bridge, Delaware
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Millside
Click for Map
Fri -- 04:35 AM EST     Moonrise
Fri -- 04:40 AM EST     -0.25 feet Low Tide
Fri -- 07:16 AM EST     Sunrise
Fri -- 10:20 AM EST     5.57 feet High Tide
Fri -- 03:18 PM EST     Moonset
Fri -- 04:38 PM EST     Sunset
Fri -- 05:15 PM EST     -0.22 feet Low Tide
Fri -- 10:42 PM EST     5.13 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.72.71.70.8-0-0.20.723.44.75.55.44.63.52.51.50.5-0.20.11.22.53.84.95.1

Tide / Current Tables for Chesapeake and Delaware Canal, Maryland/Delaware Current
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Chesapeake and Delaware Canal
Click for Map
Fri -- 01:41 AM EST     0.03 knots Slack
Fri -- 04:26 AM EST     2.03 knots Max Flood
Fri -- 04:36 AM EST     Moonrise
Fri -- 07:16 AM EST     Sunrise
Fri -- 07:17 AM EST     -0.04 knots Slack
Fri -- 10:38 AM EST     -2.19 knots Max Ebb
Fri -- 02:35 PM EST     0.05 knots Slack
Fri -- 03:19 PM EST     Moonset
Fri -- 04:40 PM EST     Sunset
Fri -- 05:10 PM EST     2.16 knots Max Flood
Fri -- 08:49 PM EST     -0.02 knots Slack
Fri -- 11:07 PM EST     -1.57 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.3-0.90.71.6221.60.7-1.2-1.8-2.1-2.2-2-1.7-1.111.92.22.11.71.2-0.5-1.3-1.6

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 (22,6,7,8)
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Ground Weather Radar Station Philadelphia, PA
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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.