Monday, May27, 2019 L-36.com


Marine Weather and Tides
Galena, 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 5:38AMSunset 8:21PM Monday May 27, 2019 12:05 AM EDT (04:05 UTC) Moonrise 1:23AMMoonset 12:34PM Illumination 43% Phase: Third Quarter Moon; Moon at 23 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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ANZ530 Chesapeake Bay North Of Pooles Island- 1135 Pm Edt Sun May 26 2019
Rest of tonight..W winds 5 kt. Waves less than 1 ft. Numerous showers and tstms. Vsby 1 nm or less.
Mon..N winds 5 kt. Waves less than 1 ft.
Mon night..SE winds around 5 kt. Waves 1 ft or less.
Tue..S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Tue night..S winds 5 to 10 kt. Waves 1 ft.
Wed..SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Wed night..SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Thu..W winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. A chance of showers and tstms through the night.
Fri..N winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1135 Pm Edt Sun May 26 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A weak boundary will remain stalled out near the waters through Monday. The front will then lift back north by Tuesday as high pressure off the southeastern united states coast regains control through the middle of the week. A weak cold front will stall out near the waters late in the week.


7 Day Forecast for Marine Location Near Galena, MD
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location: 39.37, -75.93     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 270038
afdphi
area forecast discussion
national weather service mount holly nj
838 pm edt Sun may 26 2019

Synopsis
A cold front will cross our region overnight, then high pressure
builds to our north Monday and Monday night. This high builds
offshore early Tuesday, while a warm front lifts across our area.

This front may stall through Wednesday while a couple of low
pressure systems move eastward along it. This front then lifts to
our north Wednesday night, before a couple of cold front move across
the area later Thursday into Friday.

Near term until 6 am Monday morning
As of 830 pm, an update has been sent to include severe
thunderstorm watch #258 for our maryland and delaware zones
which GOES until 1 am. Main threat is locally damaging winds and
some hail. Some initial training may result in locally very
heavy rain.

A mid level impulse is moving across central pennsylvania as of this
writing near a surface cold front. It is this feature that is aiding
in large scale forcing and therefore an increase in showers and some
thunderstorms has occurred. This looks to move across portions of
the northern zones, therefore the pops were increased quite a bit
for awhile this evening. In addition, a convectively generated
boundary looks to be draped across far southern new jersey westward
and new convection has rapidly developed along it as some better
ascent has arrived. While convective coverage has been rather sparse
overall, some increase in deeper convection is expected especially
across the far southern areas given the instability and shear
parameters.

Any stronger convective cores that are sustained will have the
potential to produce locally strong to damaging winds especially
given some dry air aloft leading to a downburst potential. Some hail
is possible, however severe hail would be limited to any isolated
robust sustained core. The severe threat looks to be mostly for
maryland and delaware and perhaps into far southern new jersey. It
is here where some enhancement could take place by late evening from
the convective complex now in the eastern ohio and west virginia
areas.

Once the cold front clears the area overnight, some drier air will
begin to advect in from the northwest. Plenty of mid to high level
clouds streaming across the area this evening, some of which is
convective cloud debris, will thin out late tonight behind the cold
front.

Short term 6 am Monday morning through 6 pm Monday
Memorial day should be a pleasant day for much of the region.

The only possible exception is portions of delmarva. If the
front stalls over this area, showers and storms could linger in
delmarva through the day. Although there is still some
uncertainty, so I stayed close to the previous forecast, it is
worth noting that some of the 12z models show this front
clearing much further south, leaving the entire region dry.

Temperatures behind the front will be 5 to 10 degrees lower
than Sunday, with highs mostly in the 70s and lower 80s. Despite
the northwesterly flow, a sea breeze could develop later in the
day, cooling coastal areas further.

Long term Monday night through Sunday
An unsettle pattern continues for much of the upcoming week
into the weekend, with several rounds of showers and
thunderstorms.

Monday night will start out fairly quiet as high pressure
builds to our north. Very late in the night, the high pressure
begins to lose any grip it has on our area as a frontal boundary
begins to lift northward, and as a short wave vorticity impulse
moves into the area, scattered showers and thunderstorms may
develop late Monday night into early Tuesday morning.

As we go into Tuesday, the front lifting toward the area is
forecast to slow down and may stall out across the region later
Tuesday, into Tuesday night, and into Wednesday as well as
several waves of low pressure move along the boundary. As
multiple rounds of short waves vorticity impulses aloft move
across the area within the northwest-west flow aloft, showers
and thunderstorms will continue in the forecast Tuesday-
Wednesday, although it will not rain the entire time. The higher
probabilities will be tied to the passages of the short waves.

As we move into Wednesday night, the frontal boundary is
expected to lift to our north, and precipitation chances will
lower through Wednesday night, although not be zero as there
will remain unsettled conditions with an additional short
wave vorticity impulse affect the area.

On Thursday and Friday, a couple of frontal boundaries are
forecast to move across the area. The front on Thursday
currently looks to be the stronger of the two, and has a better
chance of showers and thunderstorms to be associated with it.

Thursday also has higher pw values at 1.5-2.0 for some areas, so
it will have a higher threat for heavy rainfall, although pw
values remain over an inch into Friday.

Dry weather may return for early Saturday as high pressure
briefly builds across the northeast and into our area. However,
showers may begin to develop during the afternoon as return flow
develops and a short wave moves across the area. Also, another
cold front is currently forecast to move toward the area on
Sunday, which could bring another round of showers and
thunderstorms to the area.

Temperatures through most of the extended period are forecast
to be above normal, with Tuesday possibly being the coolest day
and below or near normal.

Aviation 01z Monday through Friday
The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg,
kmiv, kacy and surrounding areas.

Tonight... Some showers and thunderstorms around through about
midnight, with greatest coverage possible near abe and rdg then near
and south from about ilg to acy. Local and brief MVFR ifr conditions
(especially visibility) will occur with any heavier shower or
thunderstorm. Otherwise,VFR. Westerly winds mainly 5-10 knots,
becoming all light northerly overnight.

Monday...VFR. North winds 5-10 knots, becoming locally west and
southwest later in the afternoon. A sea breeze at acy and miv will
result in a wind shift to east to southeast.

Outlook...

Monday night... GenerallyVFR condition expected, although
clouds increase and lower late in the night with a chance of
showers. Winds become northeast 5-10 knots overnight.

Tuesday-Tuesday night... MVFR ceilings may develop early Tuesday
as a warm front lifts across the area and continue into the
night. Chance of showers and thunderstorms during the period.

East to northeast winds Tuesday and Tuesday evening, become
southeast Tuesday night.

Wednesday-Wednesday night... MVFR conditions possible early,
then lifting toVFR during the morning. Showers and
thunderstorms remain possible, especially Wednesday afternoon
and evening. Winds shift to southwest early and may gust 15-20
knots during the day.

Thursday-Thursday night... GenerallyVFR, except lower
conditions possible with showers and thunderstorms Thursday
afternoon and night. Southwest winds may gust 15-20 knots during
the day Thursday.

Friday... GenerallyVFR, except lower conditions possible with
showers and thunderstorms during the day. Southwest winds may
gust 20-25 knots during the day.

Marine
Winds and seas are expected to remain below small craft advisory
criteria through memorial day. Some thunderstorms with gusty winds
will be possible this evening mainly south of atlantic city.

Outlook...

Monday night-Friday... Conditions expected to remain below
advisory levels through the period, although winds may gust
around 20 knots at times. There is a chance of showers and
thunderstorms each day, which could produce locally higher winds
and waves should they occur.

Rip currents...

the risk for the formation of dangerous rip currents increases to
moderate on Monday. A long period swell (around 10 seconds) combined
with some increase in the wind as it turns onshore, enhancing a sea
breeze some, is expected to result in an elevated rip current risk
on memorial day especially in the afternoon.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... None.

Synopsis... Robertson
near term... Gorse
short term... Johnson
long term... Robertson
aviation... Gorse robertson
marine... Gorse johnson robertson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHCM2 - 8573927 - Chesapeake City, MD 13 mi35 min WNW 2.9 G 5.1 1014 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 20 mi35 min SE 2.9 G 5.1 1014.1 hPa
DELD1 - 8551762 - Delaware City, DE 23 mi41 min SW 4.1 G 6 73°F 66°F1013.9 hPa
RDYD1 - 8551910 - Reedy Point, DE 23 mi35 min 1013.3 hPa
SJSN4 - 8537121 - Ship John Shoal, NJ 30 mi35 min W 7 G 14 69°F 70°F1013.8 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 33 mi35 min ENE 2.9 G 4.1 70°F 1013.9 hPa
FSNM2 33 mi41 min NE 4.1 G 4.1 68°F 1013.7 hPa
BLTM2 - 8574680 - Baltimore, MD 35 mi35 min E 1 G 2.9 71°F 73°F1013.5 hPa
CPVM2 36 mi35 min 71°F 71°F
44063 - Annapolis 39 mi41 min W 5.8 G 7.8 72°F 71°F1013.9 hPa
APAM2 - 8575512 - Annapolis, MD 40 mi35 min 72°F 1013 hPa
MRCP1 - 8540433 - Marcus Hook, PA 41 mi35 min 1012.7 hPa
TPLM2 - Thomas Point, MD 42 mi65 min NW 12 G 14 68°F 70°F1015.4 hPa (+2.0)68°F

Wind History for Chesapeake City, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from APG (wind in knots)
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Last 24hr------------------NW4W6W8W8W10NW13W10NW15W14W14W14N14NW5W8SW5
1 day ago------------------CalmCalmCalmS13S15SW8S10S8S7S9S6SW8SW11SW8SW6
2 days ago------------------CalmCalmCalmNE5CalmE75E3SE3S3SW5SW8SW6SW5SW4

Tide / Current Tables for Sassafras River, Betterton, Chesapeake Bay, Maryland
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Chesapeake and Delaware Canal, Maryland/Delaware Current
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Chesapeake and Delaware Canal
Click for Map
Mon -- 02:07 AM EDT     1.67 knots Max Flood
Mon -- 02:22 AM EDT     Moonrise
Mon -- 04:26 AM EDT     -0.08 knots Slack
Mon -- 05:40 AM EDT     Sunrise
Mon -- 07:47 AM EDT     -1.78 knots Max Ebb
Mon -- 11:04 AM EDT     0.07 knots Slack
Mon -- 01:33 PM EDT     Moonset
Mon -- 02:34 PM EDT     1.99 knots Max Flood
Mon -- 05:30 PM EDT     -0.08 knots Slack
Mon -- 08:20 PM EDT     Sunset
Mon -- 08:30 PM EDT     -1.73 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.81.41.71.50.8-0.9-1.4-1.7-1.8-1.6-1.1-0.311.61.921.60.9-0.8-1.4-1.7-1.7-1.4-1

Weather Map and Satellite Images
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wmap_A
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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Wind Forecast for Philadelphia/Mount Holly, PA (0,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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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.