Monday, July24, 2017

Marine Weather and Tides
Trexler, PA

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 5:51AMSunset 8:25PM Monday July 24, 2017 12:46 PM EDT (16:46 UTC) Moonrise 6:13AMMoonset 8:24PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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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ANZ338 NEw York Harbor- 1207 Pm Edt Mon Jul 24 2017
Today..NE winds 10 to 15 kt. Waves 2 to 3 ft. Slight chance of tstms. Showers likely late this morning, then chance of showers late.
Tonight..NE winds 10 to 15 kt. Waves around 2 ft in the evening, then 1 ft or less. Chance of showers.
Tue..NE winds around 10 kt. Waves 1 ft or less, then around 2 ft in the afternoon.
Tue night..E winds 5 to 10 kt. Waves 1 to 2 ft.
Wed..E winds 5 to 10 kt, becoming se in the afternoon. Waves 1 ft or less.
Wed night..S winds 5 to 10 kt. Waves 1 ft or less.
Thu..S winds around 5 kt, becoming sw. Waves 1 ft or less. Chance of showers at night.
Fri..SW winds 5 to 10 kt, becoming N after midnight. Waves 1 ft or less. Chance of showers and tstms. Winds and waves higher in and near tstms.
ANZ300 1207 Pm Edt Mon Jul 24 2017
Synopsis for the long island waters and new york harbor.. Low pressure tracks along a stationary front today, passing east tonight. Another low passes Tuesday. High pressure builds over the northeast late Tuesday through Wednesday, then drifts off the coast Wednesday night. Another wave of low pressure follows for Wednesday night into Friday.

7 Day Forecast for Marine Location Near Trexler, PA
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location: 40.6, -75.64     debug

Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 240952
area forecast discussion
national weather service mount holly nj
552 am edt Mon jul 24 2017

A frontal boundary and low pressure moving along it will remain
over our area this morning, but then move offshore later this
afternoon. A second low will follow tonight and Tuesday as the
boundary sinks slowly to the south. High pressure is forecast to
build down from the northwest for the middle part of the week.

A cold front from the northwest is anticipated to arrive on
Friday. The front is expected to move slowly to our southeast
over the weekend as areas of low pressure travel along it.

Near term until 6 pm this evening
Significant thunderstorm wind damage occurred overnight in the
stevensville area of kent island in queen anne's county,
maryland. While official decisions regarding a storm survey have
yet to be made, a public information statement should be issued
after further coordination with local emergency management
late this morning.

An upper trough and sfc front combined with ample moisture is
producing rounds of showers and sct tstms across much of the
region early this morning. Lighter showers are across the
extreme north part of the cwa. Excessive rains have resulted in
ffw in many areas overnight. See the lsr for all of the latest
reports. Event is still in progress, so busy night for all here.

Later, the front will lift across the region and the rains should
end from SW to NE later this morning. The ff watch will be extended
until noon for much of nj and parts of ERN pa, but dropped elsewhere
with the heaviest rains probably over in the W SW areas early this
morning. The back of the boundary will bring more sct tstms to the
area later this afternoon. Temperatures today will be very warm
with upper 80s and low 90s over the region. Clouds will gradually
thin later this morning and into the afternoon. Winds will be mostly
s SE early, then turn SW W this afternoon.

Short term 6 pm this evening through 6 am Tuesday
System begins to move away and the showers associated with the cold
front will end from W to E early tonight. Drier air will begin to
arrive N W and will spread over the rest of the area later Tuesday.

Lows will be in the low 70s S E and low 60s N w.

Long term Tuesday through Sunday
No changes overnight. The words below are from Sunday afternoon

A chance of showers and thunderstorms will linger into Monday
night. Based on the latest model guidance, drying may be delayed
a bit. It now appears as though the mid level short wave trough
from the northwest will not arrive until late Tuesday. As a
result, we will keep some clouds and a slight chance of showers
for Tuesday.

Dry air is anticipated to follow the mid level trough for
Tuesday night through Wednesday night.

A cold front is expected to approach from the northwest on
Thursday and it should pass through our region on Friday. We
will indicate an increasing chance for showers and thunderstorms
at that time.

The forward progress of the front is expected to slow over the
weekend as waves of low pressure travel along the boundary. We
will continue to carry a mainly dry forecast for Saturday and
Sunday, but that could change if the front starts to trend
toward being even less progressive.

Temperatures are expected to be seasonable during the period
from Monday night through Sunday.

Aviation 10z Monday through Friday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Challenging fcsts for the morning with widespread poor flying
conditions across the area and sct showers downpours and a few tstms
too. Overall, expect improvement this morning, but timing in the
tafs is low confid with a variety of mesoscale factors affecting
conditions. Winds will be mostly SE early, then turn SW W by late
morning. There will probably be more showers sct tstms this
afternoon across the area, again low confid in timing, basically
used prob30s from guidance. Frequent amds expected.

Outlook... .

Tuesday... MVFR and ifr conditions possible in the early
morning, thenVFR.

Tuesday night through Wednesday night... MainlyVFR.

Thursday... MainlyVFR. A chance of afternoon showers and

Thursday night and Friday... MVFR and ifr conditions are
possible in showers and thunderstorms.

Conditions on the waters still coming up short of SCA conditions
attm. Seas are around 4 ft however and winds have gusted around 20
kts also. Wind directions have mostly been E or SE on the north side
of the front. The front will move northward today and winds will
become S or SW behind that. We will still hold the SCA flag for now
with the overall conditions remaining about the same into the
morning. Scattered showers and tstms with locally higher winds and
seas around tstms. Showers coverage will diminish later this
morning, be a few more tstms possible later this afternoon and into
the evening.


Tuesday through Friday... No marine headlines are anticipated.

Rip currents...

a low risk remains is expected for today for rip currents with
a possible moderate risk along the monmouth and northern ocean
county beaches.

Tides coastal flooding
There was minor tidal flooding Sunday night along the coastal areas
and water levels will be elevated again tonight. It is not clear
that the levels will be enough to issue another advisory at this
point. We will let the dayshift make the call with regards to

Dew point readings at kdov continue to measure too high
compared to surrounding locations and should be treated as
unrepresentative of the area.

Hamburg nj transmitter is off the air. No known rts.

Phi watches warnings advisories
Pa... Flash flood watch until noon edt today for paz061-062-070-071-

Nj... Flash flood watch until noon edt today for njz001-007>010-012-

De... None.

Md... None.

Marine... None.

Synopsis... O'hara
near term... O'hara
short term... O'hara
long term... Iovino
aviation... Iovino o'hara
marine... Iovino o'hara
tides coastal flooding...


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PHBP1 - 8545240 - Philadelphia, PA 53 mi47 min 73°F 82°F1008 hPa (+1.0)
BDRN4 - 8539094 - Burlington, Delaware River, NJ 54 mi71 min 76°F 83°F1008 hPa

Wind History for Philadelphia, PA
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Allentown Queen City Municipal Airport, PA8 mi72 minNE 610.00 miMostly Cloudy75°F68°F78%1010.2 hPa
Allentown, Lehigh Valley International Airport, PA12 mi56 minNNE 610.00 miPartly Cloudy77°F66°F69%1009.2 hPa
Quakertown Airport, PA18 mi52 minNNE 810.00 miMostly Cloudy73°F66°F78%1010.2 hPa
Reading, Reading Regional Airport, PA23 mi53 minN 010.00 miPartly Cloudy80°F70°F71%1009.2 hPa

Wind History from XLL (wind in knots)
Last 24hrE4SE7E7E9SE10E10E6SE8S6E4CalmE3N5NE5E9E14
1 day agoSW4SW4SW3CalmCalmS5CalmN18
2 days agoNW6NW8SW9W7W6SW8SW4SW5S4SW3SW3S3S4CalmCalmCalmCalmCalmCalmN6NE6N4N3SW5

Tide / Current Tables for Market Street Bridge, Schuylkill River, Pennsylvania
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Market Street Bridge
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Mon -- 02:15 AM EDT     7.43 feet High Tide
Mon -- 05:52 AM EDT     Sunrise
Mon -- 07:12 AM EDT     Moonrise
Mon -- 09:46 AM EDT     0.01 feet Low Tide
Mon -- 02:47 PM EDT     6.39 feet High Tide
Mon -- 08:21 PM EDT     Sunset
Mon -- 09:21 PM EDT     Moonset
Mon -- 09:54 PM EDT     0.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Philadelphia, Pennsylvania
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Click for Map
Mon -- 02:45 AM EDT     7.81 feet High Tide
Mon -- 05:52 AM EDT     Sunrise
Mon -- 07:12 AM EDT     Moonrise
Mon -- 10:10 AM EDT     0.03 feet Low Tide
Mon -- 03:16 PM EDT     6.70 feet High Tide
Mon -- 08:21 PM EDT     Sunset
Mon -- 09:21 PM EDT     Moonset
Mon -- 10:21 PM EDT     0.34 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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

GOES Local Image of Mid-Atlantic    EDIT

Wind Forecast for Philadelphia/Mount Holly, PA (12,3,4,5)
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Ground Weather Radar Station Philadelphia, PA
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weather_mapweather_map weather_map

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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 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 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.