Saturday, March23, 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 7:03AMSunset 7:21PM Saturday March 23, 2019 10:20 AM EDT (14:20 UTC) Moonrise 9:33PMMoonset 7:56AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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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ANZ532 Chesapeake Bay From Sandy Point To North Beach- 907 Am Edt Sat Mar 23 2019
.small craft advisory in effect until 8 pm edt this evening...
Rest of today..NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
Tonight..NW winds 10 to 15 kt with gusts to 25 kt... Diminishing to 5 kt late. Waves 1 to 2 ft.
Sun..S winds 5 to 10 kt. Waves 1 ft.
Sun night..SW winds 5 to 10 kt. Waves 1 ft.
Mon..SW winds 5 kt...becoming nw in the afternoon. Waves 1 ft. Rain likely.
Mon night..N winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft. A chance of rain.
Tue..NE winds 10 to 15 kt. Waves 2 to 3 ft... Subsiding to 1 ft.
Wed..E winds 5 to 10 kt. Waves 1 ft.
ANZ500 907 Am Edt Sat Mar 23 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build across the waters today and tonight before shifting offshore on Sunday. Low pressure and its associated cold front will then cross the waters Monday. This will be followed by high pressure for the remainder of next week. Small craft advisories may be needed Monday through Tuesday.


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


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 231350
afdlwx
area forecast discussion
national weather service baltimore md washington dc
950 am edt Sat mar 23 2019

Synopsis
High pressure will build across the area through Sunday. The
next low pressure system will pass near the area on Monday, then
canadian high pressure will build in for the middle of next
week.

Near term until 6 pm this evening
Strong low pressure is moving into the canadian maritimes this
morning. Tight cyclonic flow remains across the area through,
meaning winds are still quite gusty. While there are several
inversion between the surface and 500 mb, winds within this
layer 40-45 kt. Most of the strongest winds aloft are failing
to mix to the surface, but some sporadic gusts up to 40 mph
will be possible for a couple more hours (a few stronger gusts
may persist on the ridge tops).

It will remain breezy into the afternoon given the pressure
gradient, though wind speeds should lessen some. The only
clouds remaining are across the appalachian ridges, and even
these should dissipate as high pressure builds. High
temperatures are expected to range from the mid 40s to mid 50s.

Short term 6 pm this evening through Monday night
The surface high will move overhead by tonight. With clear
skies, temperatures should drop back into the 20s and 30s. The
high will move off the southeast coast on Sunday. Southwesterly
flow will help temperatures rebound into the 50s and 60s. Mid
and high level clouds will begin to increase during the
afternoon.

The next shortwave trough and associated surface low will
approach from the west and affect the area Sunday night into
Monday night. With little interaction between this wave and the
northern stream, it looks like the low will take an easterly
track nearly over the area. Eventually, the canadian cold front
will overtake it from the north, but likely not until most of
the precipitation exits.

A few showers will be possible as ascent increases Sunday
night, although temperatures should be above freezing
everywhere. The best chance of rain will be Monday as the low
crosses, although amounts will be light and precipitation may
tend to be spotty at times given the system's continental
origins. If current trends for the low track hold, temperatures
may ultimately be held in the 40s and 50s for a larger portion
of the area (versus 60s). Some wet snow flakes can't totally be
ruled out Monday night as the system pulls away, although am
currently thinking the best chance for this to happen would be
over the higher elevations. Lows AOB freezing are forecast for
much of the area, but this will likely occur well after
precipitation ends for most.

Long term Tuesday through Friday
After Monday, much of next week will feature quiescent weather
dominated by surface high pressure. Temperatures will start cool and
below normal but rebound to near or above normal by week's end.

High pressure will build into the northeastern us on Tuesday, move
to the coastal plain by Wednesday and offshore on Thursday. This
will lead to mostly sunny clear skies and dry weather through the
period. The coolest temperatures are expected to be Tuesday and
Tuesday night with highs in the 40s to near 50f and lows in the 20s
to around 30f. Temperatures will moderate through Wednesday and
Thursday with highs Wednesday rebounding through the 50s, and
reaching the upper 50s to low 60s by Thursday.

A low pressure system will then be moving through the central us and
towards the great lakes by Friday. Southerly flow will increase out
ahead of this system across the region, but dry weather is expected
to continue. Highs should reach well into the 60s Friday.

Aviation 14z Saturday through Wednesday
The main aviation concern for the TAF period will be continued
gusty NW winds. Gusts should generally range from 25-30 kt, but
some rogue gusts into the upper 30s could occur through mid-
morning. Winds should subside quickly after sunset this evening
as high pressure builds in.

Vfr conditions will persist through Sunday and likely through
much of Sunday night, although some light rain showers may
arrive ahead of the next system. This low will cross the area on
Monday, with rain likely affecting the area and the potential
for MVFR conditions. The chance for precipitation will dwindle
by Monday night.

Vfr under building high pressure Tuesday and Wednesday.

Marine
Strong, gusty winds continue on the waters this morning. Have
replaced the gale warning with a solid small craft advisory for
much of the waters. Between drum point-smith point, including
tangier sound and the mouth of the potomac, the gale warning set
to expire at 10 am anyways. Small craft advisory conditions
will continue for the rest of the day. Observations generally
support that plan, although there still are some borderline
gale gusts. Winds within the mixed layer do gradually decline.

Wind should subside tonight as high pressure builds in, but it
may not be until an hour or two after sunset. Have adjusted the
end time of the small craft advisory later for the bay between
drum point- smith point, including tangier sound and the mouth
of the potomac. May need to delay the ending of the sca
elsewhere too. Will make that decision later today.

Southwest winds around 10-15 kt develop Sunday and Sunday night as
the high moves offshore. Low pressure will cross over the
waters on Monday. Given the current track, winds may remain
below criteria for most of the day. A strong cold front will
push south during the afternoon and evening, with northerly
winds likely resulting in small craft advisory conditions in
its wake.

Sca conditions possible Tuesday following frontal passage, with
winds lessening by Tuesday night and Wednesday as high pressure
builds in.

Lwx watches warnings advisories
Dc... None.

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory until 8 pm edt this evening for
anz530>533-535-536-538>542.

Small craft advisory until 11 pm edt this evening for anz534-
537-543.

Gale warning until 10 am edt this morning for anz534-537-543.

Synopsis... Ads
near term... Ads hts
short term... Ads
long term... Mm
aviation... Ads mm
marine... Ads mm hts


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BSLM2 - Chesapeake Bay, MD 9 mi111 min WNW 8.9 37°F 1017 hPa22°F
TPLM2 - Thomas Point, MD 12 mi21 min W 24 G 28 38°F 44°F1018.7 hPa (+3.1)22°F
APAM2 - 8575512 - Annapolis, MD 17 mi33 min 41°F 1017.3 hPa
CPVM2 19 mi33 min 40°F 22°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 26 mi33 min 39°F 1018.8 hPa
WASD2 - 8594900 - Washington, DC 26 mi33 min 39°F 48°F1019.4 hPa
CA2 - 8571892 - Cambridge, MD 28 mi39 min 39°F 46°F1017.5 hPa
SLIM2 - 8577330 - Solomons Island, MD 30 mi33 min 41°F 46°F1018 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 32 mi33 min 38°F 1017.1 hPa
FSNM2 32 mi39 min 1016.7 hPa
BLTM2 - 8574680 - Baltimore, MD 36 mi39 min 38°F 46°F1017.1 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 36 mi33 min 39°F 46°F1017.5 hPa
NCDV2 39 mi39 min 42°F 1018.5 hPa
PPTM2 - 8578240 - Piney Point, MD 43 mi111 min NNW 25 G 27
BISM2 - 8571421 - Bishops Head, MD 46 mi33 min 40°F 43°F1018.5 hPa

Wind History for Cove Point LNG Pier, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Annapolis, United States Naval Academy, MD16 mi87 minNW 15 G 2610.00 miFair41°F23°F49%1016.8 hPa
Camp Springs / Andrews Air Force Base, MD18 mi25 minWNW 16 G 2210.00 miFair39°F20°F47%1019.1 hPa
Bay Bridge Field, MD19 mi41 minWNW 16 G 2010.00 miFair0°F0°F%1017.6 hPa

Wind History from NAK (wind in knots)
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1 day agoCalmN3N7NE7NE8NE7--E8
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CalmCalmNW5NW9NW11NW11
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2 days agoSE5E6SE4E4E5E3E4SE3NE6E3SE10SE12SE6E3E6NE4NE4NE5NE4NE33CalmE5E3

Tide / Current Tables for Fairhaven, Herring Bay, Maryland
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Fairhaven
Click for Map
Sat -- 12:10 AM EDT     -0.02 feet Low Tide
Sat -- 06:16 AM EDT     1.23 feet High Tide
Sat -- 07:05 AM EDT     Sunrise
Sat -- 08:56 AM EDT     Moonset
Sat -- 01:04 PM EDT     -0.05 feet Low Tide
Sat -- 06:45 PM EDT     0.97 feet High Tide
Sat -- 07:20 PM EDT     Sunset
Sat -- 10:33 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-000.20.50.81.11.21.210.80.50.20-0.100.20.50.70.910.90.60.40.2

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Sat -- 01:21 AM EDT     -0.94 knots Max Ebb
Sat -- 04:19 AM EDT     0.00 knots Slack
Sat -- 07:04 AM EDT     Sunrise
Sat -- 07:38 AM EDT     1.14 knots Max Flood
Sat -- 08:55 AM EDT     Moonset
Sat -- 10:56 AM EDT     -0.00 knots Slack
Sat -- 02:04 PM EDT     -1.04 knots Max Ebb
Sat -- 05:23 PM EDT     0.00 knots Slack
Sat -- 07:20 PM EDT     Sunset
Sat -- 08:10 PM EDT     0.78 knots Max Flood
Sat -- 10:32 PM EDT     Moonrise
Sat -- 11:01 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.7-0.9-0.9-0.6-0.20.40.81.11.10.90.5-0-0.5-0.9-1-0.9-0.6-0.20.30.60.80.70.40

Weather Map and Satellite Images
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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.
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Wind Forecast for Baltimore, MD/Washington (10,2,3,4)
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Ground Weather Radar Station Dover AFB, DE
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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.