Wednesday, August21, 2019 L-36.com


Marine Weather and Tides
Stevensville, MD

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:23AMSunset 7:54PM Wednesday August 21, 2019 3:39 AM EDT (07:39 UTC) Moonrise 10:12PMMoonset 10:55AM 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
    EDIT      (on/off)   Help
ANZ540 Eastern Bay- 138 Am Edt Wed Aug 21 2019
.small craft advisory in effect from 9 am edt this morning through this evening...
Overnight..S winds 5 kt. Waves less than 1 ft. Isolated showers and tstms.
Wed..S winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft. Scattered showers and tstms.
Wed night..SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Scattered showers and tstms.
Thu..SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Thu night..SW winds 5 kt...becoming nw after midnight. Waves 1 ft. A chance of showers.
Fri..N winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Fri night..N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Sat..NE winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning.
Sun..E winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 138 Am Edt Wed Aug 21 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure in the atlantic will promote a light southerly flow over the region today. A cold front will approach the waters late tonight into Thursday, before stalling near or south of the area into Friday. High pressure will then settle over the area Saturday into Sunday.


7 Day Forecast for Marine Location Near Chester, MD
   Hourly   EDIT   Help
location: 38.93, -76.28     debug


Area Discussion for - Philadelphia/Mount Holly, PA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kphi 210108
afdphi
area forecast discussion
national weather service mount holly nj
908 pm edt Tue aug 20 2019

Synopsis
A nearby front will lift slowly northward into new york and new
england tonight and on Wednesday. A slow moving cold front is
forecast to approach from the northwest on Wednesday night and
Thursday. The boundary is expected to pass through our region on
Thursday night. High pressure is anticipated to follow for the
coming weekend and for the early part of next week.

Near term until 6 am Wednesday morning
The earlier convection across the lower susqu valley has
diminished for the most part with one or two surviving cells
escaping into the southern poconos attm. Other dying tstms
across DELMARVA has morphed into a large area of showers across
srn de NE md. Going forward, the models are all over the place
with the hrrr showing a dry night and the 18z NAM showing more
tstms developing after 6z. The the nearby front, it seems that
some activity should be expected, so I have just refined the
pops a bit mostly N W and adjusted for present conditions.

Patchy fog will probably develop, but with the drier air today,
likely not that widespread.

With decent cloud cover overnight, temperatures will remain
warm and in the 70s through much of the region, with some mid to
upper 60s across the southern poconos and northwestern new
jersey.

Short term 6 am Wednesday morning through 6 pm Wednesday
Heat advisory remains in effect through Wednesday.

Another active day is in store for Wednesday as the
aforementioned frontal boundary pushes north of the region,
placing us firmly in the warm sector. Winds that have been more
southeasterly through today will turn more to the southwest and
we will see moisture increase across the region once again with
dew points rising into the low to mid 70s.

Hot and humid conditions will prevail with little relief
expected until showers and thunderstorms start to develop and
move through the forecast area. A pre-frontal trough will
develop ahead of the main front (which arrives Thursday) and
will be a focus for thunderstorm development across the region.

The main concern will be the potential for severe weather. The
spc has placed portions of our area in the slight risk category,
with damaging winds being the main threat. Shear is modest
(only around 20- 30 kts) but with CAPE increasing through the
day to around 1000-2000 j kg and plenty of moisture and lift
available, we could see some strong to severe storms develop,
mainly during the afternoon and evening and primarily to the
north and west of the i-95 corridor. Once again, pwats are
running high (up to 2.00") so heavy rainfall will be likely and
may result in some flooding concerns.

Long term Wednesday night through Tuesday
We should be solidly in the warm and humid air on Wednesday
evening, with ongoing showers and thunderstorms. The warm front
is expected to be well up into new england at that time with an
approaching cold front extending across the eastern great lakes
and the lower ohio river valley.

The showers and thunderstorms are expected to weaken gradually
on Wednesday evening with the loss of daytime heating. Partly
cloudy and muggy conditions are anticipated for late Wednesday
night.

The cold front is forecast to extend from northern new england
to the ohio river valley on Thursday morning. The boundary will
likely sink slowly to the south, passing through our region from
late Thursday into Thursday night. We are expecting another hot
humid day. Heat index values may again approach 100 from the
philadelphia metropolitan area southward. However, conditions
seem borderline and we will not extend the heat advisory at this
point although it may need to be done as we get closer in time.

Another round of showers and thunderstorms is forecast ahead of
and with the cold front from Thursday afternoon into Thursday
evening.

Some improvement is expected on Friday as high pressure begins
to build down into our region from ontario. There is a chance of
showers and thunderstorms from northeastern maryland and
delaware into southern new jersey as the departing front remains
nearby to our south.

The center of the high is anticipated to shift from ontario to
canada's maritime provinces over the weekend. This pattern will
keep our region in dry conditions with a developing northeast to
east flow. Temperatures will be cooler than what we are
currently experiencing and humidity levels will be noticeably
lower.

The onshore flow may bring a return of some moisture early in
the new week. We have included a slight chance of showers and
thunderstorms at that time.

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

Tonight... Isolated showers and thunderstorms this evening. Then
more activity N W after midnight psbl. Otherwise, expect mostly
vfr conditions across the region. Some patchy fog psbl and some
low clouds S e. Light and variable winds overnight.

Wednesday... Lingering MVFR ifr conditions (mainly at kacy kmiv)
in the morning should clear by 15z and thenVFR is expected
through much of the day. Showers and thunderstorms will again
develop across the region and there will be the potential for
MVFR or lower conditions to occur during the afternoon and
evening, especially from kphl and northward. South to southwest
winds around 5 to 10 knots early will strengthen into the
afternoon, with some gusts around 15 to 20 knots possible.

Outlook...

Wednesday night... MVFR and ifr conditions with a chance of
showers and thunderstorms. Southwest wind 5 to 10 knots.

Thursday... Conditions improving toVFR. However, there will
continue to be a chance of showers and thunderstorms with
locally MVFR and ifr conditions. West wind 5 to 10 knots.

Thursday night... MainlyVFR. A chance of showers and
thunderstorms with locally MVFR and ifr conditions. Northwest
wind 5 to 10 knots.

Friday... MainlyVFR. A chance of showers. Northwest wind 5 to
10 knots.

Friday night... MainlyVFR. Variable wind 6 knots or less.

Saturday... MainlyVFR. North to northeast wind 5 to 10 knots.

Saturday night... MainlyVFR. Variable wind 6 knots or less.

Sunday... MainlyVFR. Northeast to east wind around 10 knots.

Marine
Sub-advisory conditions are expected to continue through
Wednesday. Seas will generally be around 2 to 4 feet. Winds are
expected to pick up from the southwest Wednesday afternoon and
gusts may approach 25 knots, especially later in the day. For
now, keep winds just below SCA criteria but cannot rule out a
few gusts around 25 knots.

Isolated showers and thunderstorms may lead to locally higher
winds and waves.

Outlook...

Wednesday night through Sunday... No marine headlines are
anticipated.

Rip currents...

with waves forecast at 2-3 foot and a 6-7 second period, along
with southerly winds 5-10 knots, the risk for dangerous rip
currents is low into tonight. Waves in the surf zone will likely
remain around 2-3 feet.

Phi watches warnings advisories
Pa... Heat advisory until 8 pm edt Wednesday for paz070-071-102-104-
106.

Nj... Heat advisory until 8 pm edt Wednesday for njz015-017>019.

De... Heat advisory until 8 pm edt Wednesday for dez001.

Md... None.

Marine... None.

Synopsis... Iovino
near term... Meola po
short term... Meola
long term... Iovino
aviation... Iovino meola po
marine... Iovino meola


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CPVM2 7 mi51 min 78°F 75°F
TPLM2 - Thomas Point, MD 9 mi39 min WSW 9.9 G 12 74°F 83°F1016.8 hPa (-1.6)72°F
APAM2 - 8575512 - Annapolis, MD 11 mi51 min 75°F 1015.5 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 20 mi51 min W 11 G 13 85°F1015.9 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 24 mi51 min W 6 G 8 74°F 1015.9 hPa
FSNM2 24 mi63 min WSW 6 G 8.9 74°F 1015.8 hPa
BSLM2 - Chesapeake Bay, MD 25 mi129 min NW 1.9 71°F 1017 hPa70°F
44062 - Gooses Reef, MD 27 mi39 min W 12 G 14 78°F 1 ft1016.6 hPa
CA2 - 8571892 - Cambridge, MD 27 mi57 min SSW 5.1 G 7 76°F 84°F1015.7 hPa
BLTM2 - 8574680 - Baltimore, MD 28 mi57 min W 2.9 G 5.1 74°F 84°F1015.8 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 37 mi51 min SW 15 G 19 77°F 1016.5 hPa
WASD2 - 8594900 - Washington, DC 39 mi51 min W 2.9 G 4.1 85°F1016.5 hPa
SLIM2 - 8577330 - Solomons Island, MD 43 mi51 min WSW 9.9 G 11 77°F 84°F1015.7 hPa
DRSD1 - Delaware Reserve, DE 46 mi129 min W 1 74°F 1016 hPa72°F
CHCM2 - 8573927 - Chesapeake City, MD 48 mi51 min SSE 1 G 2.9 85°F1015.9 hPa

Wind History for Tolchester Beach, MD
(wind in knots)    EDIT      (on/off)   Help
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
Last
24hr
E4
E1
E2
E2
NE1
E4
G7
NE2
G6
E3
G6
N8
N9
NW6
NW7
NW3
SE8
G13
SE4
SE2
SE3
SW10
G14
S4
G10
SW2
G5
S6
G11
S6
G11
SW13
W12
G15
1 day
ago
S3
S2
G5
SE3
SE2
SW4
G7
SW7
W7
W3
SW4
SW4
SW4
S6
SE4
S2
SW7
S4
S3
G6
SE4
S3
G6
SE2
SE2
E1
E3
E2
2 days
ago
S2
SE3
SE3
SE3
SW8
SW5
SW6
SW7
SW7
SW8
SW12
SW12
G15
SW3
G7
SW9
S2
G5
SE2
E4
E3
N2
G6
E6
E3
S2
W6

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bay Bridge Field, MD4 mi59 minWSW 810.00 miFair79°F73°F84%1015.9 hPa
Annapolis, United States Naval Academy, MD11 mi45 minW 510.00 miFair77°F69°F77%1015.9 hPa
Easton / Newman Field, MD14 mi39 minN 010.00 miFair76°F72°F90%1017.3 hPa

Link to 5 minute data for KESN

Wind History from ESN (wind in knots)
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
Last 24hrCalmCalmCalmCalmNE4E8E7NE7NE3CalmNE3S18
G23
SE20
G35
E4CalmCalmCalmCalmSE5CalmS12
G15
S5CalmCalm
1 day agoS4S3SE3S6S8S6SW4W4W4SW8W8SW5W5S8S9
G15
S6CalmCalmCalmCalmCalmCalmCalmCalm
2 days agoSE3S3CalmS5CalmCalmCalm--SW4SE3S5S8
G14
S10SW6SW5S3S4CalmCalmSE4NW8SE4S5S4

Tide / Current Tables for Kent Island Narrows, Maryland
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Kent Island Narrows
Click for Map
Wed -- 03:59 AM EDT     0.87 feet Low Tide
Wed -- 06:23 AM EDT     Sunrise
Wed -- 09:16 AM EDT     1.63 feet High Tide
Wed -- 11:55 AM EDT     Moonset
Wed -- 03:52 PM EDT     0.45 feet Low Tide
Wed -- 07:51 PM EDT     Sunset
Wed -- 10:13 PM EDT     1.83 feet High Tide
Wed -- 11:11 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.41.210.90.90.91.11.31.51.61.61.41.20.90.70.50.40.50.81.11.41.71.81.8

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
   EDIT      (on/off)   Help   One Week of Data
Baltimore Harbor Approach
Click for Map
Wed -- 01:16 AM EDT     -0.00 knots Slack
Wed -- 04:12 AM EDT     -0.61 knots Max Ebb
Wed -- 06:24 AM EDT     Sunrise
Wed -- 07:20 AM EDT     0.00 knots Slack
Wed -- 10:05 AM EDT     0.50 knots Max Flood
Wed -- 11:55 AM EDT     Moonset
Wed -- 12:49 PM EDT     -0.00 knots Slack
Wed -- 04:06 PM EDT     -0.67 knots Max Ebb
Wed -- 07:11 PM EDT     0.00 knots Slack
Wed -- 07:52 PM EDT     Sunset
Wed -- 10:37 PM EDT     0.81 knots Max Flood
Wed -- 11:11 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.40.1-0.2-0.5-0.6-0.6-0.4-0.10.20.40.50.40.2-0.1-0.3-0.6-0.7-0.6-0.4-0.10.30.60.80.8

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
Link to Loop



Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (3,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Dover AFB, DE
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.