Friday, March24, 2017 L-36.com


Marine Weather and Tides
Kennedyville, MD

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:56AMSunset 7:20PM Friday March 24, 2017 10:10 AM EDT (14:10 UTC) Moonrise 3:58AMMoonset 2:45PM Illumination 10% 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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ANZ530 Chesapeake Bay North Of Pooles Island- 957 Am Edt Fri Mar 24 2017
.small craft advisory in effect through this evening...
Rest of today..S winds 15 kt with gusts to 20 kt. Waves 2 ft. A chance of rain.
Tonight..SW winds 10 to 15 kt with gusts to 20 kt... Diminishing to 5 kt late. Waves 1 to 2 ft.
Sat..S winds 5 kt. Waves less than 1 ft.
Sat night..SE winds 5 kt. Waves less than 1 ft.
Sun..E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Sun night..SE winds 5 to 10 kt. Waves 1 ft. Showers.
Mon..S winds 5 to 10 kt. Waves 1 ft or less. Showers.
Tue..NE winds 5 kt. Waves less than 1 ft. Showers likely .
ANZ500 957 Am Edt Fri Mar 24 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will drift east to bermuda through this evening. Two low pressure systems will enter and weaken over the midwest Saturday and Monday night. Small craft advisories may be needed for portions of the waters Sunday and Sunday night.

7 Day Forecast for Marine Location Near Kennedyville, MD
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location: 39.38, -75.97     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 241325
afdphi
area forecast discussion
national weather service mount holly nj
925 am edt Fri mar 24 2017

Synopsis
A warm front will lift to our northwest today, then a backdoor
cold front pushes through the area Saturday. This front is
forecast to stall near the southern portions of the area through
Sunday, then return northward as a warm front Sunday night into
Monday as low pressure moves through the great lakes. Another
low pressure if forecast to move out of the midwest and offshore
of the northeast Tuesday into Tuesday night, pulling a cold
front across the east coast. High pressure will try to build
down from the north Thursday.

Near term /until 6 pm this evening/
Broad area of precipitation in just starting to move into the
region. However, it is looking more scattered than it once was,
likely a result of dry air entrainment from the departing
continental polar air mass. Across our region, warm air and
moisture advection is already occuring. Almost all locations are
well above freezing and dewpoints have risen from the teens
just before sunrise this morning to the mid to upper 20s for
much of the region now. Thus, even taking into account
evaporative cooling effects, most of the region should be free
from any threat of freezing or frozen precipitation type. The
one exception is higher elevations of carbon and monroe counties
which have temperatures generally 30-31 degrees f and dewpoints
in the upper teens and lower 20s. In these locations, it still
looks like a brief period of freezing rain is possible so will
keep the winter weather advisory going. However, if the warm air
advection trend/pace holds, the threat will likely be over by
late this morning so the advisory may be cancelled early.

Rain is still expected to taper off early this afternoon.

Temperatures are expected to be near normal. Highs this
afternoon will top off near 60 across md/de, and in the low to
mid 50s across southern nj and SE pa. The poconos and northern
nj will top off in the mid to upper 40s.

Short term /6 pm this evening through 6 am Saturday/
Zonal flow sets up tonight as high pressure remains anchored
over the southeast u.S. Conditions remain dry, but some mid-
level moisture will spread into the region, keeping cloudy skies
in place tonight.

Lows will drop into the low to mid 40s north of i-76, mid to
upper 40s across southern nj and SE pa, and in the low 50s
across md/de.

Long term /Saturday through Thursday/
A backdoor cold front will sink through the area during the day
Saturday as high pressure moves across northern new england and
eastern canada. The front is then expected to stall just to our
south through Sunday. As the front moves across the area, then
stalls to our south, several short wave/vorticity impulses will
slide across the area as well. This will lead to a chance of
showers across the area, though it will not rain the entire
time. Temperatures will be several degrees above normal Saturday
before the front moves through, then return closer to normal
Sunday on the northern side of the boundary. We will have to
keep an eye on the temperatures across the far north Saturday
night into Sunday. The NAM is hinting at the possibility for
temperatures to drop close to freezing, which could lead to a
period of freezing rain. For now, the forecast keeps all areas
above freezing.

The frontal boundary is then forecast to lift back northward as
a warm front overnight Sunday into Monday as an area of low
pressure moves through the great lakes region. Another couple
of short wave/vorticity impulses are forecast to move across the
area as the warm front lifts northward, and will enhance
precipitation potential across the area. Sunday night into early
Monday morning has the greatest chance of seeing more
widespread precipitation potential.

Another low pressure is then forecast to move out of the
midwest then offshore of the northeast Tuesday into Tuesday
night, pulling a cold front across the east coast. This will
keep unsettled weather across the area through Tuesday night as
several short waves/vorticity impulses slide across the area.

Behind the cold front, drier weather is then expected to return
for Wednesday into Thursday.

Temperatures are currently forecast to be a few degrees above
normal for the majority of next week.

Aviation /13z Friday through Tuesday/
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Warm front lifts north through the region this morning into
this afternoon. Quick shot of fzra possible from 13z-15z at
kabe, otherwise, any rain that does fall will fall as plain
rain. Brief MVFR conditions likely, otherwise,VFR. Conditions
dry out after 18z.

Light S winds this morning will become SW 8-12 kt this
afternoon, and then winds decrease to 5-10 kt tonight.

Outlook...

Saturday-Tuesday... MVFR or ifr conditions with a chance of rain
possible through the period.

Marine
Sw winds increase to 15-20 kt with gusts up to 25 kt across
northern nj waters this afternoon and into this evening. Sca
remains in effect. Will hoist a SCA for de bay and de ocean
waters as confidence in a period of 25 kt gusts for this
afternoon and early evening is increasing.

Conditions gradually subside to sub-sca conditions tonight.

Outlook...

Saturday-Saturday night... Conditions expected to fall below
advisory levels.

Sunday-Sunday night... Small craft advisory levels possible.

Monday-Tuesday... Winds may be below advisory levels, but seas
could remain elevated leading to small craft advisory levels.

Phi watches/warnings/advisories
Pa... Winter weather advisory until 1 pm edt this afternoon for
paz054-055.

Nj... None.

De... None.

Md... None.

Marine... Small craft advisory until 11 pm edt this evening for
anz450>453.

Small craft advisory from 2 pm this afternoon to 8 pm edt this
evening for anz454-455.

Small craft advisory from 2 pm this afternoon to 6 pm edt this
evening for anz430-431.

Synopsis... Robertson
near term... Johnson/mps
short term... Mps
long term... Robertson
aviation... Robertson/mps
marine... Robertson/mps


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHCM2 - 8573927 - Chesapeake City, MD 13 mi41 min SW 2.9 G 12 40°F 44°F1031.3 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 19 mi41 min SSW 15 G 19 40°F 43°F1031.9 hPa
RDYD1 - 8551910 - Reedy Point, DE 24 mi41 min 43°F 44°F1031.3 hPa
DELD1 - 8551762 - Delaware City, DE 25 mi41 min SSW 6 G 14 42°F 43°F1031.7 hPa
FSNM2 31 mi41 min SSW 6 G 14 38°F 1030.9 hPa
SJSN4 - 8537121 - Ship John Shoal, NJ 32 mi41 min SSW 15 G 19 40°F 41°F1031.6 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 32 mi41 min SSW 5.1 G 7 38°F 1031.7 hPa
BLTM2 - 8574680 - Baltimore, MD 33 mi41 min SW 6 G 9.9 39°F 44°F1031.1 hPa
CPVM2 35 mi41 min 41°F 27°F
DRSD1 - Delaware Reserve, DE 35 mi56 min S 8.9 42°F 1032 hPa29°F
APAM2 - 8575512 - Annapolis, MD 38 mi41 min 42°F 1031.6 hPa
TPLM2 - Thomas Point, MD 41 mi71 min SSW 18 G 21 40°F 43°F23°F
MRCP1 - 8540433 - Marcus Hook, PA 42 mi41 min 40°F 1031.2 hPa

Wind History for Chesapeake City, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Phillips Army Air Field / Aberdeen, MD12 mi73 minSW 13 G 2010.00 miOvercast40°F26°F59%1032.2 hPa
Baltimore / Martin, MD24 mi26 minS 910.00 miMostly Cloudy43°F26°F53%1031.8 hPa

Wind History from APG (wind in knots)
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Last 24hrCalmW54S9S9S9S9S8SW5SW3CalmCalmCalmCalmCalmCalmCalm3S4S3S43SW13
G20
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1 day agoNW13
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N115--------N5N3CalmCalmCalmCalmCalmCalm6
2 days ago3Calm45W86N7NW6W8W5W4CalmNW3CalmCalmCalmNW5N8NW10
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NW12
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G22

Tide / Current Tables for Sassafras River, Betterton, Chesapeake Bay, Maryland
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Sassafras River
Click for Map
Fri -- 01:15 AM EDT     0.29 feet Low Tide
Fri -- 04:58 AM EDT     Moonrise
Fri -- 06:53 AM EDT     1.39 feet High Tide
Fri -- 07:00 AM EDT     Sunrise
Fri -- 12:55 PM EDT     0.10 feet Low Tide
Fri -- 03:45 PM EDT     Moonset
Fri -- 07:20 PM EDT     Sunset
Fri -- 07:31 PM EDT     1.65 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.30.30.50.81.11.31.41.310.70.40.20.10.20.40.81.21.51.61.61.51.20.9

Tide / Current Tables for Chesapeake and Delaware Canal, Maryland/Delaware Current
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Chesapeake and Delaware Canal
Click for Map
Fri -- 01:10 AM EDT     0.04 knots Slack
Fri -- 04:44 AM EDT     1.88 knots Max Flood
Fri -- 04:57 AM EDT     Moonrise
Fri -- 06:59 AM EDT     Sunrise
Fri -- 07:09 AM EDT     -0.09 knots Slack
Fri -- 10:36 AM EDT     -2.06 knots Max Ebb
Fri -- 02:13 PM EDT     0.06 knots Slack
Fri -- 03:44 PM EDT     Moonset
Fri -- 05:23 PM EDT     2.08 knots Max Flood
Fri -- 07:19 PM EDT     Sunset
Fri -- 08:20 PM EDT     -0.08 knots Slack
Fri -- 11:10 PM EDT     -1.72 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.1-0.40.91.41.81.91.50.6-1.2-1.7-2-2-1.8-1.3-0.51.11.7221.60.8-1-1.5-1.7

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 (10,2,3,4)
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Ground Weather Radar Station Dover AFB, DE
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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.