Saturday, August24, 2019 L-36.com


Marine Weather and Tides
Cape St. Claire, 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 6:26AMSunset 7:50PM Saturday August 24, 2019 1:03 AM EDT (05:03 UTC) Moonrise 12:00AMMoonset 2:00PM Illumination 38% 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
    EDIT      (on/off)   Help
ANZ531 Chesapeake Bay From Pooles Island To Sandy Point- 1035 Pm Edt Fri Aug 23 2019
.small craft advisory in effect from 3 am edt Saturday through Saturday morning...
Rest of tonight..N winds 5 to 10 kt. Gusts up to 20 kt. Waves 1 to 2 ft.
Sat..NE winds 5 to 10 kt. Gusts up to 20 kt until late afternoon. Waves 1 to 2 ft.
Sat night..NE winds 5 to 10 kt. Waves 1 ft.
Sun..NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Sun night..NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Mon..NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Mon night..E winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Tue..SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Wed..SW winds 5 kt. Waves less than 1 ft. A chance of tstms. A chance of showers. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1035 Pm Edt Fri Aug 23 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will settle north of the waters this weekend. Low pressure off the florida coast will likely move northward offshore of the eastern seaboard early next week. Small craft advisories may be needed Sunday into Monday.


7 Day Forecast for Marine Location Near Cape St. Claire, MD
   Hourly   EDIT   Help
location: 39.09, -76.35     debug


Area Discussion for - Philadelphia/Mount Holly, PA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kphi 240110
afdphi
area forecast discussion
national weather service mount holly nj
910 pm edt Fri aug 23 2019

Synopsis
A cold front will continue to slowly push south as high pressure
builds to our north through early next week. The high will try to
spread down the east coast, but not fully make it into the area. The
high will retreat north and east next Tuesday and Wednesday. This
will allow an area of low pressure to lift northward off the eastern
seaboard during the mid week period and a cold front to track
through the area later next week.

Near term until 6 am Saturday morning
As expected most of the early precipitation has cleared our
area, with low-mid lvl cloud cover also retreating
southeastward as considerably drier air (pwats in the 0.6-0.7
inch range) filters in the from the nw. Consequently expect a
dry night over the vast majority of the area with limited cloud
cover apart from cirrus. The lone exception may be southern
delmarva and far southern nj where some low-mid lvl cloud cover
may persist a few more hours. Also can't completely rule out
some weak showers over southern DELMARVA tonight as a frontal
wave pushes out to sea, but expect this activity to largely
stay offshore.

Otherwise should be a fairly cool night with mins in the
50s to lower 60s with the warmest lows in the urban corridor,
delmarva, and coastal nj. Northerly winds may increase a bit
after about midnight which may not allow us to get quite as cool
as this airmass would support (although we will still be below
normal).

Short term 6 am Saturday morning through 6 pm Saturday
High pressure is forecast to be located in eastern ontario and
southern quebec on Saturday. The air mass is anticipated to
expand southward into our region.

We are expecting a mostly sunny sky for eastern pennsylvania and
northern new jersey. Partly sunny conditions are forecast for
northeastern maryland, delaware and southern new jersey. There is a
slight chance of a light shower in the afternoon in those areas due
to the onshore flow, but most locations will remain dry.

A northeast wind at 8 to 14 mph is expected for Saturday. Highs will
likely favor the 75 to 80 degree range with low humidity levels.

Long term Saturday night through Friday
Cooler conditions everywhere with small pops across the coastal
plain will start the long term period. An increase in temperatures
and greater chances of precipitation will return by the middle of
next week and persist through late week.

As we start the weekend, Saturday is expected to be a september-like
day. High pressure will be building to our north across eastern
canada, with our area on the far southern edge. This will keep an
easterly flow across the area, and as a trough low aloft moves
across the area, temperatures will cool to near or below normal.

Dewpoints will be in the comfortable 50s. Dry weather is expected,
with mainly afternoon evening clouds due to the trough low moving
overhead. The exception could be the nj coast and DELMARVA as the
onshore flow helps to produce some light rain.

As we move into Sunday and Monday, the easterly flow will continue
as high pressure builds a little farther southward across new
england. The high will try to nose its way down the east coat toward
the mid atlantic region during this time as well. Guidance continues
to indicate precipitation developing across the area during this
period, so we will have a slight chance chance of showers Sunday
through Monday. However, it may just end up being more cloudy rather
than rainy as some stratocumulus clouds could develop with the
persistent easterly flow. Regardless, if it does rain, it is
expected to be light as pw values are mostly an inch or less.

As we move into Tuesday through Thursday, unsettled weather could
return to the area. An area of low pressure is forecast to be
lifting northward off the east coast Tuesday through Thursday. At
the same time, a cold front is expected to approach from the west
during the day Wednesday into Thursday. There are some timing
differences with these systems. However, there will be an increasing
chance of showers and thunderstorms starting Tuesday and continuing
through Thursday.

With the region expected to be behind the cold front on Friday,
precipitation chances will be on the decline. Little temperature
change is expected at the moment behind the front.

Aviation 01z Saturday through Wednesday
Tonight...VFR with a decrease in cloud cover. Northerly wind 5 to 10
knots.

Saturday...VFR. North to northeast wind around 10 knots.

Outlook...

Saturday night... MainlyVFR conditions expected. MVFR conditions
possible at kacy and kmiv as an onshore flow generates some clouds.

Winds generally NE 5-10 knots.

Sunday... MainlyVFR conditions expected. MVFR conditions possible at
kacy and kmiv as an onshore flow generates some clouds drizzle light
rain. Low confidence. NE winds 5-10 kts with gusts up to 20 knots
possible.

Sunday night-Tuesday... More widespread MVFR conditions developing
with the persistent onshore flow. E to NE winds 5-10 kts with gusts
up to 20 kts possible.

Wednesday... MainlyVFR as the onshore loses its grip across the
region. Winds less than 10 kts.

Marine
A northerly wind around 10 to 15 knots for tonight is expected to
become northeast 15 to 20 knots on Saturday. Wave heights on our
ocean waters should build around 4 feet. Our current forecast is
borderline for a small craft advisory on Saturday. If wind and wave
conditions appear to begin trending higher than anticipated, we may
eventually need to issue a small craft advisory for Saturday on our
ocean waters.

Outlook...

Saturday night... Low end SCA conditions possible due to long fetch e
to NE winds developing.

Sunday-Wednesday... A prolonged low end SCA may be needed through the
period as long fetch E to NE winds persist.

Rip currents...

increasing northeasterly winds and seas building to around 4 ft
by the afternoon will result in a moderate risk of rip
currents on Saturday.

This elevated rip current risk (either moderate or at times
high) is expected to persist beyond Saturday until at least
Tuesday as a prolonged period of onshore flow and elevated seas
looks likely.

Tides coastal flooding
A prolonged northeast to east flow is expected Saturday through at
least Tuesday. This persistent onshore fetch, combined with
increasing astronomical tides due to an approaching new moon on
Thursday will likely lead to increasing coastal water levels.

Guidance is already indicating that minor coastal flooding is
becoming more likely Monday and Tuesday over delaware bay and
portions of the nj shore.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... None.

Synopsis... Kruzdlo
near term... Carr
short term... Iovino
long term... Kruzdlo robertson
aviation... Iovino kruzdlo
marine... Carr iovino kruzdlo
tides coastal flooding...



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 mi52 min 73°F 68°F
APAM2 - 8575512 - Annapolis, MD 10 mi46 min 70°F 1018.2 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 10 mi52 min NNE 4.1 G 9.9 71°F 81°F1018.9 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 13 mi52 min N 6 G 8 70°F 1019 hPa
FSNM2 13 mi58 min N 8 G 9.9 69°F 1018.8 hPa
TPLM2 - Thomas Point, MD 14 mi64 min WNW 8.9 G 9.9 69°F 81°F1019.6 hPa (+0.8)66°F
BLTM2 - 8574680 - Baltimore, MD 17 mi52 min N 7 G 11 70°F 83°F1018.7 hPa
BSLM2 - Chesapeake Bay, MD 29 mi154 min Calm 65°F 1018 hPa64°F
44062 - Gooses Reef, MD 37 mi94 min N 16 G 18 74°F 1018.7 hPa
CA2 - 8571892 - Cambridge, MD 39 mi52 min NNW 8 G 11 70°F 82°F1018.1 hPa
WASD2 - 8594900 - Washington, DC 39 mi52 min N 5.1 G 8 70°F 84°F1019.3 hPa
CHCM2 - 8573927 - Chesapeake City, MD 42 mi52 min N 4.1 G 5.1 66°F 85°F1018.8 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 48 mi46 min NNE 15 G 19 73°F 1018.9 hPa
DRSD1 - Delaware Reserve, DE 48 mi154 min Calm 66°F 1018 hPa66°F

Wind History for Tolchester Beach, MD
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
Last
24hr
SE3
SE1
W7
NW6
G9
NW6
N12
NE4
G7
NE4
G11
NE7
G14
NE4
G11
NE3
G8
NE4
G8
NE4
G8
NE4
G16
N12
G15
NE12
G19
NE2
G6
E3
N9
N11
N5
G9
N4
N11
G14
NE6
G11
1 day
ago
W7
SW7
G10
W9
G12
W10
W8
W10
G13
NW12
G15
NW11
G14
W8
NW5
W8
SW8
SW7
SW7
SW5
G10
SW7
SW10
S5
G9
S4
G8
S4
N20
G28
N11
G14
E6
SE4
2 days
ago
S4
SE2
S4
G8
S6
G9
SW11
G16
SW11
SW7
S8
G14
S7
G14
S6
G13
S9
G15
S10
G16
S8
G15
SW9
G13
S7
G11
W3
S4
G7
SW11
W5
G8
W7

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bay Bridge Field, MD8 mi84 minN 410.00 miPartly Cloudy70°F64°F83%1018.6 hPa
Annapolis, United States Naval Academy, MD10 mi70 minNNW 810.00 miMostly Cloudy73°F64°F76%1018.8 hPa
Baltimore / Martin, MD18 mi82 minWNW 310.00 miFair66°F64°F94%1019.3 hPa
Baltimore, Baltimore-Washington International Airport, MD18 mi70 minW 410.00 miMostly Cloudy64°F62°F93%1019 hPa
Baltimore, Inner Harbor, MD19 mi70 minno data mi70°F61°F73%1018.8 hPa
Fort Meade / Tipton, MD22 mi82 minN 05.00 miPartly Cloudy63°F60°F94%1020 hPa

Link to 5 minute data for KW29

Wind History from W29 (wind in knots)
-12
PM
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
Last 24hr----S4SW4SW5NW4CalmN6N8NE8NE8NE8NE6N5NE9N7NE6NE5N7N4N4N3CalmN6
1 day agoSW7SW7W7W9--W7W6W5W7NW8W6W8W7W6SW5SW5SW5S4S9S5S7S4N9
G17
--
2 days ago--W3W8W8----S4SW5--SW12
G15
S10
G17
SW9
G16
S10
G17
S12
G19
S13
G18
S11
G17
S12
G17
S9S11S7S5S6W8
G16
--

Tide / Current Tables for Sandy Point, Maryland
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Sandy Point
Click for Map
Sat -- 12:11 AM EDT     1.30 feet High Tide
Sat -- 12:20 AM EDT     Moonrise
Sat -- 06:26 AM EDT     Sunrise
Sat -- 07:34 AM EDT     0.59 feet Low Tide
Sat -- 12:02 PM EDT     0.87 feet High Tide
Sat -- 03:00 PM EDT     Moonset
Sat -- 05:59 PM EDT     0.28 feet Low Tide
Sat -- 07:48 PM EDT     Sunset
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
1.31.31.210.90.80.70.60.60.70.70.80.90.80.70.60.40.30.30.30.50.70.91.1

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
   EDIT      (on/off)   Help   One Week of Data
Baltimore Harbor Approach
Click for Map
Sat -- 12:16 AM EDT     0.89 knots Max Flood
Sat -- 12:20 AM EDT     Moonrise
Sat -- 03:56 AM EDT     -0.00 knots Slack
Sat -- 06:26 AM EDT     Sunrise
Sat -- 07:08 AM EDT     -0.68 knots Max Ebb
Sat -- 10:53 AM EDT     0.00 knots Slack
Sat -- 01:00 PM EDT     0.26 knots Max Flood
Sat -- 02:59 PM EDT     Moonset
Sat -- 03:11 PM EDT     -0.00 knots Slack
Sat -- 06:28 PM EDT     -0.51 knots Max Ebb
Sat -- 07:48 PM EDT     Sunset
Sat -- 09:15 PM EDT     0.00 knots Slack
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
0.90.80.60.3-0-0.4-0.6-0.7-0.6-0.5-0.200.20.30.20-0.2-0.4-0.5-0.5-0.3-0.10.20.6

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

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (1,6,7,8)
      (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.