Sunday, August25, 2019 L-36.com


Marine Weather and Tides
St. George Island, 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 6:29AMSunset 7:50PM Sunday August 25, 2019 8:44 PM EDT (00:44 UTC) Moonrise 12:06AMMoonset 3:01PM Illumination 21% Phase: Waning Crescent; Moon at 25 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
ANZ537 Tidal Potomac From Cobb Island To Smith Point- 737 Pm Edt Sun Aug 25 2019
.small craft advisory in effect through Monday afternoon...
Tonight..NE winds 15 kt with gusts to 25 kt. Waves 3 ft. A slight chance of showers.
Mon..NE winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft. A chance of showers.
Mon night..NE winds 10 to 15 kt. Gusts up to 25 kt until early morning. Waves 3 ft.
Tue..E winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers.
Tue night..E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Wed..S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms.
Wed night..W winds 5 kt. Waves less than 1 ft. A chance of showers.
Thu..N winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning.
Fri..W winds 5 kt...becoming s. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 737 Pm Edt Sun Aug 25 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will remain across the northeastern united states through Monday. Low pressure developing off the carolina coast today and Monday will move northeast and out to sea Tuesday. A cold front will approach the waters Wednesday. Small craft advisories may be needed Monday night into Tuesday.


7 Day Forecast for Marine Location Near St. George Island CDP, MD
   Hourly   EDIT   Help
location: 38.04, -76.5     debug


Area Discussion for - Baltimore, MD/Washington
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 klwx 260014
afdlwx
area forecast discussion
national weather service baltimore md washington dc
814 pm edt Sun aug 25 2019

Synopsis
Strong high pressure will build north of the region today. Low
pressure likely will develop off the carolina coast early in the
week and move out to sea by Tuesday. A cold front will cross
the region on Wednesday.

Near term through Monday
High pressure remains parked over new england this evening.

Some decrease in cloud cover is expected initially tonight, but
low-level northeasterly flow will promote low-level moisture
increase which will lead to a return of clouds overnight and
towards morning (especially across portions of eastern WV and
central va). Lows will fall into the 50s 60s.

Short term Monday night through Tuesday night
Surface high pressure will be positioned near coastal maine by
Monday with an area of low pressure southeast of the carolinas.

This will help to turn low level flow even more easterly, which
will promote an increasingly marine influence. That in
combination with an upper trough moving towards the area from
the mississippi valley will act to bring more cloud cover in
addition to the possibility of some isolated to scattered
showers, with the highest probabilities in southern md and
central va. Highs Monday will likely remain in the 70s.

Monday night will see the passage of an upper level shortwave,
which will act to bring scattered rain showers to portions of
the region overnight and into Tuesday morning, especially along
and west of the blue ridge. Lows Monday night in the 60s.

By Tuesday, the shortwave will pull eastward, and the high
pressure over the northeastern us will break down. Additionally,
the low offshore will slowly move northeastward. This will
lessen the gradient over the region, and flow will turn more
southeasterly in nature. This will allow dew points and
temperatures to slowly rise, with highs Tuesday likely back up
near 80f. Some scattered showers are possible as well. Lows
Tuesday night will hold in the 60s to near 70f.

Long term Wednesday through Sunday
The upper level ridge that has been in place over our region will
start to break down early on Wednesday. A strong upper level trough
will shift eastward into the great lakes region and into the mid-
atlantic and new england. A surface low associated with the upper
level trough will move through canada and its associated front
will approach and move through our region from the west
Wednesday afternoon and into early Thursday. A surface low or
possibly a weak tropical system will move through the western
atlantic ocean. This will lead to increasing moisture in our
region but should limit day time heating to mid 80s. The limited
heating will lessen the impact of severe weather but
thunderstorms and showers will be possible as the frontal
boundary moves through our region.

The cold front is expected to be fully through our area by
Thursday morning leading to a return of drier air. High pressure
will build back into our region Thursday through the early
parts of this upcoming weekend. Another cold front will approach
our region late Saturday and into Sunday bringing the next
chance for precipitation. Daytime temperatures will trend
upwards during this period from the upper 70s on Thursday to the
mid to upper 80s by Saturday.

Aviation 00z Monday through Friday
An increasingly easterly onshore flow will lead to lower and
thicker cloud cover late tonight into Monday, with a period of
MVFR conditions likely at cho (less likely but still possible
elsewhere Monday morning). These conditions may persist or
redevelop Monday night into Tuesday morning. A few rain showers
become possible Monday and Tuesday as well.

An easterly to southeasterly flow will combine with a
approaching cold front to increase cloud cover over our region
Wednesday. Ceilings could be low enough that subvfr conditions
will be possible. Brief restrictions of MVFR to ifr could be
possible as showers and thunderstorms move through terminals.

The cold front will move through our region by Thursday morning
leading to clearing skies and mainlyVFR conditions expected at this
time.

Marine
A small craft advisory remains in effect for much of the
chesapeake bay and tidal potomac through Monday. Depending on
the gradient between the high to the north and the developing
tropical system along the east coast, additional small craft
advisories may be needed Monday night into Tuesday, or may need
to be expanded into adjacent zones during the day Monday.

As a cold front moves through the waters, small craft advisories
maybe needed on Wednesday and into early Thursday.

Tides coastal flooding
Water level anomalies on the western shore of the chesapeake
bay and along the tidal potomac have continued to trend upward
with persistent northeasterly flow, though have leveled off over
the last few hours. Minor tidal flooding is possible Monday
evening through Wednesday as flow turns more southeasterly.

Lwx watches warnings advisories
Dc... None.

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory until 6 pm edt Monday for anz531>534-
537>543.

Small craft advisory until 6 am edt Monday for anz530-536.

Synopsis... Mm
near term... Mm dhof
short term... Mm
long term... Jmg
aviation... Mm dhof jmg
marine... Mm dhof jmg
tides coastal flooding... Mm dhof


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
LWTV2 - 8635750 - Lewisetta, VA 4 mi74 min ENE 15 G 20 74°F 77°F1020.5 hPa
PPTM2 - 8578240 - Piney Point, MD 7 mi74 min E 9.9 G 15
SLIM2 - 8577330 - Solomons Island, MD 20 mi74 min ENE 13 G 17 73°F 81°F1020.5 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 26 mi74 min ENE 15 G 17 72°F 1021.8 hPa
BISM2 - 8571421 - Bishops Head, MD 27 mi74 min ENE 14 G 17 72°F 78°F1021 hPa
NCDV2 34 mi74 min ENE 1.9 G 6 73°F 82°F1020.1 hPa
44062 - Gooses Reef, MD 36 mi50 min E 14 G 18 73°F 1021.9 hPa
CA2 - 8571892 - Cambridge, MD 43 mi74 min NE 13 G 18 72°F 78°F1021.1 hPa
RPLV2 - 8632837 - Rappahannock Light, VA 43 mi74 min 1020.5 hPa
YRSV2 - Chesapeake Bay,VA 45 mi74 min NNE 2.9 73°F 1021 hPa64°F

Wind History for Lewisetta, VA
(wind in knots)    EDIT      (on/off)   Help
9
PM
10
PM
11
PM
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
Last
24hr
E16
G21
E13
G17
E17
E15
E16
G20
E14
G18
E13
G19
E13
G19
E14
G17
NE13
G17
NE10
G14
NE10
G15
NE10
G16
NE11
G16
NE10
G17
NE11
G20
E16
G20
NE13
G19
E13
G19
E14
G21
E15
G21
E15
G20
E18
G23
E15
G21
1 day
ago
N8
G11
NE8
G13
NE7
G12
NE9
G13
NE9
G14
N6
G9
N7
G10
N7
G10
NE11
G17
NE10
G16
NE10
G16
NE11
G17
NE7
G13
NE7
G11
NE6
G9
NE4
G7
NE6
G9
E5
NE5
G9
N5
G8
NE4
NE7
G10
NE11
G18
E17
G21
2 days
ago
NW11
SW9
SW4
SW8
SW9
G12
SW9
NW7
SW6
W6
W7
NW5
W4
G7
NW4
NE2
SE1
S1
SE2
NE4
NE11
G20
NE10
G16
N11
G17
E11
G15
NE11
G17
N11
G15

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD8 mi51 minNE 710.00 miA Few Clouds74°F57°F57%1020.5 hPa
Patuxent River, Naval Air Station, MD18 mi52 minENE 11 G 1910.00 miFair72°F57°F61%1020.9 hPa
St Marys County Airport, MD19 mi61 minENE 610.00 miPartly Cloudy70°F59°F69%1021.7 hPa
Tappahannock-Essex County Airport, VA24 mi49 minNE 610.00 miFair71°F59°F69%1020.7 hPa

Link to 5 minute data for KNUI

Wind History from NUI (wind in knots)
9
PM
10
PM
11
PM
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
Last 24hrNE85----NE7NE5--NE3NE7--NE6NE9--NE12
G19
N11
G20
--NE11
G21
NE11
G17
NE8
G14
NE7NE11
G18
NE12
G19
NE10
G18
NE7
1 day ago45--NE3----3CalmNE7N4NE5N6NE65N6NE6NE8N4N7565NE4NE6
2 days agoSW11
G20
------SW6--W4--W7W634--Calm4NE5N74N7N8
G15
N9
G14
CalmN94

Tide / Current Tables for Lynch Point, Yeocomico River, Virginia
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Point Patience, 0.1 mile southwest of, Maryland Current
   EDIT      (on/off)   Help   One Week of Data
Point Patience
Click for MapFlood direction 315 true
Ebb direction 145 true

Sun -- 01:04 AM EDT     Moonrise
Sun -- 02:05 AM EDT     -0.75 knots Max Ebb
Sun -- 06:29 AM EDT     Sunrise
Sun -- 06:51 AM EDT     0.00 knots Slack
Sun -- 07:50 AM EDT     0.16 knots Max Flood
Sun -- 09:26 AM EDT     -0.00 knots Slack
Sun -- 01:24 PM EDT     -0.51 knots Max Ebb
Sun -- 04:01 PM EDT     Moonset
Sun -- 05:01 PM EDT     0.00 knots Slack
Sun -- 07:46 PM EDT     Sunset
Sun -- 07:52 PM EDT     0.59 knots Max Flood
Sun -- 10:57 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
-0.5-0.7-0.7-0.7-0.6-0.4-0.200.20.1-0.1-0.3-0.4-0.5-0.5-0.4-0.2-00.30.50.60.50.3-0

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 Baltimore, MD/Washington (20,4,5,8)
      (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.