Wednesday, March20, 2019 L-36.com


Marine Weather and Tides
Friendship, 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 7:08AMSunset 7:19PM Wednesday March 20, 2019 5:16 PM EDT (21:16 UTC) Moonrise 6:01PMMoonset 6:13AM Illumination 100% Phase: Full Moon; Moon at 15 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
ANZ532 Chesapeake Bay From Sandy Point To North Beach- 438 Pm Edt Wed Mar 20 2019
.small craft advisory in effect from Thursday morning through late Thursday night...
Rest of this afternoon..SE winds 5 kt. Waves less than 1 ft.
Tonight..E winds 5 kt. Waves less than 1 ft. Rain. Vsby 1 to 3 nm.
Thu..E winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain. Vsby 1 to 3 nm.
Thu night..NW winds 10 to 15 kt. Gusts up to 25 kt after midnight. Waves 2 ft. A chance of showers.
Fri..W winds 15 to 20 kt with gusts to 30 kt. Waves 2 to 3 ft. Scattered showers.
Fri night..NW winds 15 to 20 kt with gusts to 35 kt. Waves 4 ft.
Sat..NW winds 15 to 20 kt...diminishing to 10 kt after midnight. Waves 2 to 3 ft.
Sun..SW winds 5 to 10 kt. Waves 1 ft.
ANZ500 438 Pm Edt Wed Mar 20 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Low pressure developing over the carolina coast will move northward near or over the waters Thursday. A cold front approaching from the great lakes will cross the region Friday. High pressure will follow for the weekend. Small craft advisories will likely be needed Friday into Saturday, and gales are possible Friday into Friday night.


7 Day Forecast for Marine Location Near Friendship CDP, MD
   Hourly   EDIT   Help
location: 38.75, -76.55     debug


Area Discussion for - Baltimore, MD/Washington
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 klwx 201932
afdlwx
area forecast discussion
national weather service baltimore md washington dc
332 pm edt Wed mar 20 2019

Synopsis Coastal low pressure will develop over north
carolina tonight and the low will pass through our area
Thursday. The low will intensify as it moves off to the
northeast Thursday night through Friday and high pressure will
return for the weekend. Low pressure may impact the area early
next week with more unsettled conditions possible.

Near term until 6 am Thursday morning
Thickening clouds tonight with rain developing late this evening
and spreading northward overnight as coastal low develops off of
the nc coast and begins to lift north.

Short term 6 am Thursday morning through Friday night
Two shortwaves will be phasing together west of our area tonight
with the trough axis moving across our area on Thursday. At the
surface, a low pressure system off the south carolina coast
will be tracking north along the coast and over our area tonight
and into tomorrow. This system is expected to bring rain over
our area tonight and into Thursday as warm and moist air
overruns the surface cold air in place.

There will be enough forcing with this system that a period of
moderate to heavy rain is possible mainly during Thursday
morning over areas west of the blue ridge and into the i-95
corridor. Rainfall amounts of one to two inches are expected
over this area, with localized higher amounts possible,
especially along the i-95 corridor and into central md. Flood
threat confidence is low due to recent dry conditions and also
because the rain will fall during a 12 to 18 hr period. However,
if the localized higher amounts due occur, some creeks and
streams could rise out of their banks later on Thursday.

The low pressure system will be intensifying NE of our area
Thursday night and the shortwave will phase with additional
northern stream energy on Friday. This will cause some showers
to develop on Friday afternoon. In the meantime, high pressure
will be building west of our region over the central conus. The
gradient from this and the low pressure suggests that gusty nw
winds will develop over our area Friday into Friday night. Gusts
between 30 and 40 mph are possible across most of our cwa, and
gusts up to 50 mph are possible over higher elevations west of
the blue ridge. Snow showers west of the allegheny front are
possible during this time as well, with dry conditions expected
elsewhere.

Long term Saturday through Wednesday
High pressure will gradually build over the region through the day
Saturday as shortwave ridging aloft moves into the ohio valley.

Enough of a pressure gradient will exist between the building area
of high pressure and the departing low over the northeast to
maintain some gusty winds through the day. However, winds are
gradually expected to diminish late Saturday as the low moves
further away and the gradient relaxes. The high will move overhead
Saturday night, then slide offshore on Sunday. This will allow a
southerly return flow to develop, enabling warmer conditions to work
their way back in. High temperatures will run about ten degrees
warmer on Sunday with highs in the low 60s (compared to the
low 50s on Saturday).

On Monday, disturbances in both the northern and southern streams
will start to approach the area. Model guidance differs
substantially with respect to the handling of these disturbances,
casting rather high uncertainty on our sensible weather forecast for
the Monday through Tuesday time frame. In terms of deterministic
solutions, the 12z GFS has a strong northern stream disturbance and
a more diffuse, weak southern stream disturbance. At the surface,
this solution results in a strong area of high pressure developing
over the upper midwest, and a strong, progressive cold front being
driven southward across the area late Monday through Monday night.

This would result in a period of precipitation late Monday afternoon
through Monday night that would clear the area by Tuesday morning.

The 00z euro, on the other hand, showed a slightly weaker,
further northward displaced northern stream disturbance, and a
stronger southern stream disturbance (compared to the gfs
solution). This combination results in the baroclinic zone
stalling out overhead and a more prolonged period of
precipitation Monday through Tuesday. The general notion of a
low predictability forecast is supported by the 00z eps members,
which show more than 30 degrees of spread in the temperature
field through much of the Monday night through Wednesday time
period.

To summarize, the general synoptic pattern appears favorable for us
to see some precipitation at some point during the late Monday
through Tuesday timeframe. However, most of the finer scale
details, including the timing, duration, and character of the
precipitation remain in question. There's plenty of cold air
associated with the northern stream disturbance, so some wintry
precipitation isn't entirely out of the equation, even at lower
elevations. However, given the level of uncertainty it's far too
early to speculate with respect to what will happen with
precipitation type.

Aviation 20z Wednesday through Monday
High pressure will be in control through this evening allowing for
vfr conditions over the terminals. A coastal low pressure
system will move near over our area Thursday and sub-vfr
conditions are expected late tonight and remaining through most
of Thursday. Periods of ifr conditions are possible, especially
on Thursday morning. Periods of heavy rain are possible. Cigs
and vsbys will be improving Thursday night as the coastal low
moves away from us. Gusty NW winds are expected on Friday as low
pressure intensifies NE of our area. A few showers could
develop Friday afternoon.

Vfr conditions are expected through the weekend. Gusty winds are
possible during the day Saturday before the winds weaken Saturday
night as high pressure builds in.

Marine
Winds will continue to be below criteria over the waters for the rest of
today as high pressure remains in control over the waters, but
gusts around 15 knots are possible this evening and into
tonight. A coastal low pressure system will move over the waters
on Thursday bringing rainfall. A small craft advisory is in
effect through the day for most of the waters and just extended
it over all waters into Thursday night as gusts are expected to
remain above criteria. This low pressure system will intensify
Thursday night into Friday as it moves NE and away from us.

Breezy conditions are expected over the waters on Friday into
Friday night and additional small craft advisories or gale
warnings may be needed during this time.

Sca level winds appear likely during the day Saturday. Winds will
weaken Saturday night as high pressure builds in Saturday night.

Lwx watches warnings advisories
Dc... None.

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory from 6 pm Thursday to 6 am edt Friday for
anz530-531-535-536-538-539.

Small craft advisory from 6 am Thursday to 6 am edt Friday for
anz532>534-537-540>543.

Synopsis... Bjl
near term... Imr
short term... Imr
long term... Kjp
aviation... Imr kjp
marine... Imr


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
BSLM2 - Chesapeake Bay, MD 9 mi107 min SSE 6 55°F 1025 hPa
TPLM2 - Thomas Point, MD 12 mi17 min N 1.9 G 2.9 47°F 45°F1025.6 hPa (-2.5)22°F
APAM2 - 8575512 - Annapolis, MD 17 mi47 min 50°F 1024.6 hPa
CPVM2 19 mi47 min 49°F 27°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 26 mi47 min N 4.1 G 5.1 47°F 1025.3 hPa
WASD2 - 8594900 - Washington, DC 26 mi47 min SE 2.9 G 11 55°F 51°F1024.3 hPa
CA2 - 8571892 - Cambridge, MD 28 mi47 min 1024.6 hPa
SLIM2 - 8577330 - Solomons Island, MD 30 mi47 min E 2.9 G 4.1 48°F 46°F1024.4 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 32 mi47 min ESE 4.1 G 5.1 49°F 1025.1 hPa
FSNM2 32 mi47 min E 2.9 G 4.1 49°F 1024.5 hPa
BLTM2 - 8574680 - Baltimore, MD 36 mi47 min S 1.9 G 5.1 51°F 46°F1024.7 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 36 mi47 min NNW 6 G 6 47°F 47°F1025.3 hPa
NCDV2 39 mi47 min SE 8 G 9.9 1023.8 hPa
PPTM2 - 8578240 - Piney Point, MD 43 mi47 min S 5.1 G 6
BISM2 - 8571421 - Bishops Head, MD 46 mi47 min SW 1 G 1.9 50°F 51°F1025 hPa

Wind History for Cove Point LNG Pier, MD
(wind in knots)    EDIT      (on/off)   Help
5
PM
6
PM
7
PM
8
PM
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
Last
24hr
NE10
NE6
G9
E5
E4
S2
G5
S3
S11
S13
S11
S10
S10
S7
S6
SE4
SE5
SE1
E4
E2
NW2
N4
W1
N4
N3
N4
1 day
ago
NE4
S4
SE4
G7
S6
SW4
SW4
--
W3
NW3
N7
G10
NW4
N9
NE12
NE12
G15
N12
NE11
G15
NE11
NE8
N6
N7
N10
N5
G8
NE8
NE8
2 days
ago
S11
S12
S12
S12
S11
S9
S5
NE5
N2
NE2
E4
SE6
E8
E11
E12
E11
G14
E11
SE8
SE5
G8
NE2
N9
G12
NE15
G19
NE10
G15
NE6
G11

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Annapolis, United States Naval Academy, MD16 mi23 minESE 410.00 miFair52°F30°F45%1024.9 hPa
Camp Springs / Andrews Air Force Base, MD18 mi81 minE 710.00 miA Few Clouds52°F19°F27%1024.9 hPa
Bay Bridge Field, MD19 mi37 minNW 410.00 miFair48°F28°F46%1025.1 hPa

Wind History from ADW (wind in knots)
6
PM
7
PM
8
PM
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
Last 24hrE9SE8E4SE4CalmCalmCalmCalmCalmS3CalmCalmCalmCalmCalmCalmS3SE7E5
G15
SE7SE4E4E7SE7
1 day agoSE6SE6SE3S3S3CalmW5W4N4CalmN4CalmCalmCalmN3NE4NE7CalmW3CalmN4W8N4Calm
2 days agoNW4SW4CalmN8NE4NE3CalmCalmCalmE5E8E4NE5NE5CalmNE9E3CalmN6N5E4CalmCalmCalm

Tide / Current Tables for Fairhaven, Herring Bay, Maryland
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Fairhaven
Click for Map
Wed -- 03:39 AM EDT     1.05 feet High Tide
Wed -- 07:10 AM EDT     Sunrise
Wed -- 07:12 AM EDT     Moonset
Wed -- 10:13 AM EDT     -0.19 feet Low Tide
Wed -- 04:25 PM EDT     1.13 feet High Tide
Wed -- 07:00 PM EDT     Moonrise
Wed -- 07:18 PM EDT     Sunset
Wed -- 09:43 PM EDT     Full Moon
Wed -- 10:49 PM EDT     0.03 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

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
0.30.60.8110.90.70.40.1-0.1-0.2-0.100.40.711.11.110.70.50.20.10

Tide / Current Tables for Fairhaven, Herring Bay, Maryland
   EDIT      (on/off)   Help   One Week of Data
Fairhaven
Click for Map
Wed -- 03:39 AM EDT     1.05 feet High Tide
Wed -- 07:10 AM EDT     Sunrise
Wed -- 07:12 AM EDT     Moonset
Wed -- 10:13 AM EDT     -0.19 feet Low Tide
Wed -- 04:25 PM EDT     1.13 feet High Tide
Wed -- 07:00 PM EDT     Moonrise
Wed -- 07:18 PM EDT     Sunset
Wed -- 09:43 PM EDT     Full Moon
Wed -- 10:49 PM EDT     0.03 feet Low Tide
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
0.30.60.8110.90.70.40.1-0.1-0.2-0.100.40.711.11.110.70.50.20.10

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 (17,4,5,8)
      (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.