Friday, May24, 2019 L-36.com


Marine Weather and Tides
Grasonville, 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 5:43AMSunset 8:18PM Friday May 24, 2019 1:25 PM EDT (17:25 UTC) Moonrise 12:00AMMoonset 9:44AM Illumination 69% Phase: Waning Gibbous; Moon at 20 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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ANZ540 Eastern Bay- 1035 Am Edt Fri May 24 2019
.small craft advisory in effect until 8 pm edt this evening...
Rest of today..NW winds 15 kt with gusts to 20 kt. Waves 2 ft.
Tonight..NE winds 5 to 10 kt. Waves 1 to 2 ft.
Sat..S winds 5 to 10 kt. Waves 1 ft.
Sat night..S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Sun..W winds 10 kt. Waves 1 ft.
Sun night..NW winds 5 kt. Waves less than 1 ft. A chance of showers.
Mon..E winds 5 kt. Waves less than 1 ft.
Tue..SW winds 5 to 10 kt. Waves 1 ft.
ANZ500 1035 Am Edt Fri May 24 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front will settle over southern virginia through tonight. High pressure will transit the region tonight, before shifting offshore Saturday as a warm front lifts toward the waters Saturday night. A weak cold front will approach from the north on Sunday, lingering nearby through Monday. Small craft advisories may be needed Saturday night, and again late Monday.


7 Day Forecast for Marine Location Near Grasonville, MD
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location: 38.88, -76.25     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 241340
afdphi
area forecast discussion
national weather service mount holly nj
940 am edt Fri may 24 2019

Synopsis
High pressure across the great lakes region will build across the
middle atlantic later today and remain across the region through
Saturday. Low pressure will move north of the area Sunday and Monday
causing a front to move across the region. More high pressure will
return for later Monday and into Tuesday. A disturbance will arrive
for the middle of next week.

Near term until 6 pm this evening
No significant changes for the 930 am update. Much quieter day
in store for the area as surface high pressure builds NW of the
area over the great lakes while at mid lvls heights rise as the
se ridge tries to build northward in the wake of the earlier
shortwave.

Given good mixing and modest pressure rises, will likely see breezy
northwest winds through most of the daytime hours (gusts generally
in the 20-30 mph range). There will be a considerably drier airmass
in place with cloud cover limited to patchy cirrus and some
stratocumulus (most notable over northern portions of the area).

Given a well-mixed atmosphere, a good amount of sun, and offshore
flow highs will generally run in the mid 70s to low 80s (probably a
bit cooler in the far north where there may be more cloud
cover).

Short term 6 pm this evening through 6 am Saturday
The high will move overhead this evening and then offshore
overnight, which will cause the northwesterly winds to decrease in
speed and veer to a more easterly direction. Models indicate a weak
shortwave diving around the eastern side of the ridge overnight in
the vicinity of delmarva, but am not expecting anything other than
maybe an increase in mid-clouds from this feature. Can't rule
out some stratus by the coast given onshore winds and some
cooling moistening of the low levels, but the signal is not too
strong for this outside of the nam. Other than that overnight
mins should cool to near climo; given light onshore flow and a
drier airmass.

Long term Saturday through Thursday
The overall synoptic setup will continue with an upper high
pressure across the south and a rather deep trough over the
western part of the country. A low across canada will guide low
pressure systems and fronts across the great lakes and middle
atlantic this weekend and into the middle of next week. This
means showery conditions with some tstms possible. The most
favored times for the rains are Sat night thru Sun night and
again Wed Thu next week. Since the pattern is more showery, some
locally heavy rains are possible, but the rains will be scattered
and intermittent.

Temperatures will be near normal Saturday, but then turn much
more summer-like Sunday when mercury readings will approach 90
in many areas, save the southern poconos and the shore. The above
normal readings will carry into next week, although highs Mon tue
will be more like low mid 80s. Highs will then go back into the
low 90s Wed and perhaps again thu. Humidity levels will be
somewhat uncomfortable Sunday and then again towards the
middle of next week.

Aviation 14z Friday through Tuesday
The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg,
kmiv, kacy and surrounding areas.

Friday...VFR conditions are expected at all terminals. NW winds
sustained around 15 kts with gusts up to around 25 knots are
expected through mid-afternoon.

Friday night... VFR conditions are expected with winds decreasing in
speed to around 5-10 kts, and veering from northerly to
easterly and then eventually southeasterly by Saturday morning.

Outlook...

sat... MostlyVFR.

Sat night thru Sun night...VFR much of the time, but a few
showers and tstms with lower conditions possible.

Mon thru tue... MostlyVFR.

Marine
Winds and seas are likely to remain below small craft advisory
conditions today and tonight. There is a chance for gusts to 25
kt, mostly for near shore locations along the northern new
jersey shore later this afternoon. We will continue to monitor,
but for now, the chance appears to be too low to issue an sca.

Outlook...

winds and seas will likely remain below SCA conditions for the
weekend and into early next week. Mostly fair weather is
expected, but a few tstms will be across the waters Sat night
and again Sunday night. Locally higher winds and seas are
possible with any tstm.

Rip current...

there is a moderate risk of rip currents along the new jersey
shore and delaware beaches through this evening.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... None.

Synopsis... O'hara
near term... Carr johnson
short term... Carr
long term... O'hara
aviation... Carr o'hara
marine... Carr johnson o'hara


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TPLM2 - Thomas Point, MD 10 mi25 min W 16 G 19 75°F 68°F1017.4 hPa (-0.0)50°F
CPVM2 11 mi55 min 77°F 51°F
44063 - Annapolis 12 mi43 min NW 16 G 19 74°F 68°F1016.6 hPa
APAM2 - 8575512 - Annapolis, MD 14 mi55 min 79°F 1016.2 hPa
CA2 - 8571892 - Cambridge, MD 23 mi55 min 74°F 72°F1016.6 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 23 mi55 min NNW 16 G 19 72°F 67°F1016.6 hPa
44062 - Gooses Reef, MD 24 mi43 min NW 12 G 16 73°F 1017.5 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 28 mi55 min WNW 20 G 23 74°F 1016 hPa
FSNM2 28 mi61 min W 21 G 27 75°F 1016 hPa
BLTM2 - 8574680 - Baltimore, MD 32 mi55 min N 9.9 G 14 77°F 71°F1016.1 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 34 mi55 min NNW 21 G 27 75°F 1017.4 hPa
SLIM2 - 8577330 - Solomons Island, MD 40 mi55 min NNW 12 G 17 76°F 69°F1016.3 hPa
WASD2 - 8594900 - Washington, DC 41 mi55 min NW 14 G 19 76°F 70°F1018.1 hPa
BISM2 - 8571421 - Bishops Head, MD 47 mi55 min NW 18 G 23 76°F 75°F1017.3 hPa

Wind History for Tolchester Beach, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bay Bridge Field, MD8 mi45 minNW 13 G 2010.00 miFair77°F55°F47%1016.6 hPa
Easton / Newman Field, MD11 mi29 minW 19 G 2410.00 miClear and Breezy81°F51°F37%1017.6 hPa
Annapolis, United States Naval Academy, MD14 mi31 minNW 12 G 2010.00 miFair80°F48°F34%1016.6 hPa

Wind History from W29 (wind in knots)
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Last 24hrS8S10S9S7S11S7SW6S6S7S7S5SW3W5W4W3W6W9NW5NW7NW11
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1 day agoW7W7W7W7SW7SW8S6S5S6S6S7S8S6S9S10S7S8S11
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2 days agoN8N10NW10N11N7N7NW5NW6NW6NW6CalmCalmN6NE6NE5NE4NE4NE3CalmNE5NE5NE5E4E5

Tide / Current Tables for Claiborne, Eastern Bay, Maryland
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Claiborne
Click for Map
Fri -- 12:42 AM EDT     Moonrise
Fri -- 02:17 AM EDT     0.51 feet Low Tide
Fri -- 05:46 AM EDT     Sunrise
Fri -- 08:53 AM EDT     1.65 feet High Tide
Fri -- 10:44 AM EDT     Moonset
Fri -- 04:16 PM EDT     0.53 feet Low Tide
Fri -- 08:18 PM EDT     Sunset
Fri -- 09:32 PM EDT     1.25 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.60.50.50.70.91.11.41.61.61.61.41.210.80.60.50.60.70.91.11.21.21.1

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Fri -- 12:42 AM EDT     Moonrise
Fri -- 01:15 AM EDT     -0.00 knots Slack
Fri -- 03:49 AM EDT     -0.43 knots Max Ebb
Fri -- 05:45 AM EDT     Sunrise
Fri -- 06:17 AM EDT     0.00 knots Slack
Fri -- 09:55 AM EDT     0.83 knots Max Flood
Fri -- 10:44 AM EDT     Moonset
Fri -- 01:12 PM EDT     -0.00 knots Slack
Fri -- 04:42 PM EDT     -0.93 knots Max Ebb
Fri -- 08:19 PM EDT     Sunset
Fri -- 08:24 PM EDT     0.00 knots Slack
Fri -- 11:11 PM EDT     0.56 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.1-0.2-0.4-0.4-0.3-0.10.20.50.80.80.70.50.1-0.3-0.7-0.9-0.9-0.8-0.5-0.10.20.40.6

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (13,3,4,5)
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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.