Monday, May20, 2019 L-36.com


Marine Weather and Tides
Algonquin, MD

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 5:46AMSunset 8:15PM Monday May 20, 2019 3:26 AM EDT (07:26 UTC) Moonrise 9:12PMMoonset 6:15AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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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ANZ541 Choptank River To Cambridge Md And The Little Choptank River- 136 Am Edt Mon May 20 2019
.small craft advisory in effect through this afternoon...
.small craft advisory in effect from late tonight through Tuesday afternoon...
Overnight..S winds 15 kt with gusts to 20 kt. Waves 2 ft.
Mon..SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers.
Mon night..NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Tue..NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Tue night..N winds 5 to 10 kt. Waves 1 ft.
Wed..N winds 5 to 10 kt. Waves 1 ft.
Wed night..S winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Thu..SW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Fri..NW winds 5 kt...becoming s. Waves 1 ft. A chance of showers in the morning.
ANZ500 136 Am Edt Mon May 20 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front will approach from the ohio valley and cross the region Monday. High pressure will build across the area Tuesday and Wednesday.


7 Day Forecast for Marine Location Near Algonquin, MD
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location: 38.59, -76.07     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 200552
afdphi
area forecast discussion
national weather service mount holly nj
152 am edt Mon may 20 2019

Synopsis
Low pressure will track across the great lakes and into canada
tonight and Monday, pulling a cold front across our region Monday
afternoon and evening. High pressure then builds in for Tuesday into
Wednesday. A warm front arrives in our area late Thursday night and
Friday, followed by a cold front during Saturday which may then
stall to our south Sunday.

Near term until 6 am this morning
Showers and thunderstorms have moved across the northwestern
portions of the CWA this past afternoon and evening. The severe
thunderstorm watch has since expired and the severe threat is
coming to a close. A few thunderstorms are lingering in the
lehigh valley and into north jersey, but these storms should
continue to wane and are not expected to be severe. Dangerous
lightning is still accompanying these storms, however. Another
complex of thunderstorms is moving into berks and chester
counties, but these storms will remain sub-severe and continue
to weaken over the next several hours.

Heavy rain has fallen across portions of the lehigh valley and
into the poconos, thus several flash flood warnings remain in
effect for these areas. Turn around, don't drown!
after the showers and thunderstorms lift to the northeast of our
region, we are anticipating a partly cloudy sky for late tonight.

A south wind around 10 to 15 mph this evening should diminish and
become southwest late tonight. Temperatures will remain quite mild
with lows in mid to upper 60s.

Short term 6 am this morning through 6 pm Tuesday
A cold front is forecast to approach from the northwest late on
Monday. The wind is expected to settle into the west southwest with
speeds increasing into the 10 to 20 mph range with gusts of around
25 mph. The gusty wind is anticipated to begin mixing somewhat drier
air down from aloft. Dew point readings should fall from the middle
and upper 60s in the morning to around 60 late in the afternoon at
most locations.

Regardless of the subtle drop in low level moisture and the drying
aloft, there should be enough instability in the afternoon to
trigger the development of scattered showers and thunderstorms.

Mixed layer CAPE vales are forecast to increase around 600 to 1000
j kg.

Another warm day is expected with highs mostly in the 80s.

Long term Tuesday night through Sunday
Summary... Cooler with much lower humidity Tuesday into Wednesday,
then some warming. Some convective chances at times, however no
significant storm systems are anticipated.

Synoptic overview... An upper-level trough in eastern canada into the
great lakes swings across the northeast Monday night, and even
strengthens some across the northeast Tuesday before shifting east.

Another strong upper-level trough lifts across the plains Tuesday
and Wednesday resulting in a building ridge nearing the east. The
ridge builds more Thursday into Friday, although short wave energy
topping it will keep more of a northwesterly flow aloft regime
across the northeast. At the surface, a cold front shifts offshore
Monday evening with lowering dew points and cooler air. The pattern
looks to generally repeat from Thursday onward as a warm front
arrives followed by a cold front during Saturday.

For Monday night... An upper-level trough will slide across the
northeast with the center of it into adjacent canada. A cold front
is forecast to shift offshore early in the evening, ending any
showers and thunderstorms. A few thunderstorms could be on the
strong side early with gusty winds. Much drier and also cooler air
will start to advect into the area under a northwesterly breeze.

For Tuesday and Wednesday... As a robust trough exits the northeast
late Tuesday, ridging builds from the great lakes region southward
ahead of a strong upper-level trough moving into the central plains.

This will allow surface high pressure to build into our area from
the northwest, with a cooler and much drier airmass in place. There
will be a breeze on Tuesday from the northwest given mixing within
some cold air advection. As the ridge builds eastward more
Wednesday, the surface high will shift eastward as well and tend to
move offshore Wednesday night. A warm front advancing northeastward
from the ohio valley will start to approach our area late Wednesday
night. As a result, the dew points should start to creep up some
Wednesday night however it is not expected to be all that humid.

For Thursday and Friday... A strong ridge centered across the
southeastern u.S. Will flex north and eastward some during this time
frame. The axis of this ridge may end up remaining to our west,
keeping our region more into a northwesterly flow regime aloft. As a
result, a warm front sitting to our southwest may take its time
advancing north of our entire area until late Friday. In addition, a
strong short wave diving southeastward may produce weak surface low
pressure near our area later Thursday night and Friday morning
before moving offshore. It is possible this feature could be
convectively enhanced, and the convective risk may be higher during
this time frame. Given uncertainty on the evolution of this, kept
pops on the lower side. Otherwise, dew points will gradually be on
the rise with it turning more humid especially during Friday.

For Saturday and Sunday... As an upper-level trough rounds the
northern side of the large ridge, surface low pressure tracks across
canada however its cold front is forecast to move across our area
later Saturday. The tail end of this front may be weaker as it
encounters the northern side of the ridge, however building warmth
and humidity along with a belt of stronger flow may result in some
stronger convection with the front. The front may then stall to our
south Sunday given the strong ridge across the southern states.

Aviation 06z Monday through Friday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Into tonight... MainlyVFR at krdg and kabe with one exception. A
few lingering showers and thunderstorms at these sites, thus
temporary MVFR and ifr conditions are possible. MainlyVFR at
kphl, kilg, kmiv, kpne and kttn with only a chance of a shower
or thunderstorm in the 05z to 08z time frame. Low clouds off
the ocean into this evening at and around kacy at times,
otherwiseVFR through the night. Southwesterly wind 5 to 10
knots. Low level wind shear is anticipated at kphl, kilg, kpne,
kttn, kacy and kmiv between about 02z and 08z due to a
southwesterly low level jet around 40 knots.

Monday... MainlyVFR. A chance of a shower or thunderstorm in the
afternoon with the greatest chances being at all sites except
rdg and abe. West southwest wind 10 to 15 knots with gusts
around 25 knots possible after the 14-16z time frame.

Outlook...

Monday night... A few showers and thunderstorms during the early
evening may result in local but brief MVFR ifr conditions, otherwise
vfr. West winds 10-15 knots, becoming northwest.

Tuesday and Wednesday...VFR. Northwest winds 10-15 knots with gusts
to 20 knots, diminishing some Tuesday night, then becoming light and
variable during Wednesday.

Thursday and Friday... MostlyVFR, however some showers and
thunderstorms are possible especially later Thursday into Friday.

Light and variable winds becoming west-southwest 5-10 knots
Thursday, then becoming northwest later Thursday night into
Friday.

Marine
A south to southwest flow will continue over the coastal waters of
new jersey and delaware for tonight and Monday. With the warm air
riding over the cold water, winds are not forecast to mix
efficiently to the water's surface. It appears as though gusts will
not get much higher than 20 knots. As a result, we have cancelled
the small craft advisory. Wave heights on our ocean waters are
expected to be 2 to 4 feet and waves on delaware bay should be 2
feet or less.

The warm humid air may also result in the development of some fog on
the waters. However, the timing and extent are a low confidence
forecast. We will continue to monitor for any fog development.

Outlook...

Monday night... The conditions are expected to be below small craft
advisory criteria, with winds shifting from southwest to northwest
following the passage of a cold front.

Tuesday... Northwest winds gusting to around 20 knots, however the
conditions are expected to be below small craft advisory criteria.

Wednesday through Friday... The conditions are anticipated to be
below small craft advisory criteria.

Rip currents...

the southerly flow will continue to result in a moderate risk for
the development of dangerous rip currents along the new jersey coast
into tonight. There is a low risk at the delaware beaches. With a
similar weather pattern expected for Monday, the same risk
categories are anticipated.

Equipment
The kdix radar has returned to service, however problems may
still be encountered as all of the issues have not been
completely remedied. Further outages are possible until further
testing has been completed. In case of an outage, surrounding
radars include kdox, kokx, klwx, kccx, kbgm and tphl.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... None.

Synopsis... Gorse
near term... Davis iovino
short term... Davis iovino
long term... Gorse
aviation... Davis gorse iovino
marine... Davis gorse iovino
equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CA2 - 8571892 - Cambridge, MD 1 mi56 min 75°F 69°F1013.2 hPa
44062 - Gooses Reef, MD 18 mi50 min SW 9.7 G 9.7 71°F 1013.4 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 21 mi56 min SW 12 G 17 76°F 1013.8 hPa
BISM2 - 8571421 - Bishops Head, MD 26 mi56 min SSW 13 G 15 74°F 73°F1014 hPa
SLIM2 - 8577330 - Solomons Island, MD 27 mi56 min SSW 11 G 13 74°F 69°F1013 hPa
TPLM2 - Thomas Point, MD 29 mi26 min S 16 G 17 78°F 65°F1012.8 hPa (-0.6)64°F
44063 - Annapolis 33 mi38 min WSW 9.7 G 14 77°F 67°F1012 hPa
CPVM2 33 mi56 min 70°F 70°F
APAM2 - 8575512 - Annapolis, MD 35 mi56 min 78°F 1011.5 hPa
PPTM2 - 8578240 - Piney Point, MD 40 mi56 min SW 15 G 18
44042 - Potomac, MD 41 mi38 min W 12 G 12 74°F 69°F1013.2 hPa
LWTV2 - 8635750 - Lewisetta, VA 46 mi56 min WSW 12 G 14 77°F 67°F1013.9 hPa

Wind History for Cambridge, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cambridge-Dorchester Airport, MD4 mi41 minSSW 7 G 1210.00 miFair75°F66°F74%1013.5 hPa
Easton / Newman Field, MD15 mi27 minS 710.00 miFair75°F67°F77%1014.2 hPa

Wind History from CGE (wind in knots)
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1 day agoCalmCalmCalmCalmSE3E8E7Calm43S43S6S7S8
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2 days agoCalmSE4S4S4S5S8SW64S6
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Tide / Current Tables for Cambridge, Choptank River, Maryland
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Cambridge
Click for Map
Mon -- 05:48 AM EDT     Sunrise
Mon -- 05:51 AM EDT     2.37 feet High Tide
Mon -- 07:15 AM EDT     Moonset
Mon -- 12:50 PM EDT     0.35 feet Low Tide
Mon -- 06:07 PM EDT     1.79 feet High Tide
Mon -- 08:13 PM EDT     Sunset
Mon -- 10:11 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.10.30.81.41.92.32.42.21.91.51.10.70.40.40.50.91.31.61.81.71.41.10.70.4

Tide / Current Tables for Cove Point (1.1 mi. NE of), Maryland Current
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Cove Point (1.1 mi. NE of)
Click for Map
Mon -- 12:39 AM EDT     0.00 knots Slack
Mon -- 04:07 AM EDT     0.88 knots Max Flood
Mon -- 05:50 AM EDT     Sunrise
Mon -- 07:17 AM EDT     Moonset
Mon -- 07:47 AM EDT     -0.00 knots Slack
Mon -- 11:15 AM EDT     -0.82 knots Max Ebb
Mon -- 02:42 PM EDT     0.00 knots Slack
Mon -- 05:02 PM EDT     0.38 knots Max Flood
Mon -- 07:53 PM EDT     -0.00 knots Slack
Mon -- 08:14 PM EDT     Sunset
Mon -- 10:11 PM EDT     Moonrise
Mon -- 10:58 PM EDT     -0.43 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.20.10.50.80.90.80.60.3-0.1-0.4-0.7-0.8-0.8-0.6-0.20.10.30.40.30.2-0-0.2-0.4-0.4

Weather Map and Satellite Images
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GOES Local Image of Mid-Atlantic    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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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.