Friday, March22, 2019 L-36.com


Marine Weather and Tides
Chesapeake Beach, 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 7:06AMSunset 7:22PM Friday March 22, 2019 2:24 AM EDT (06:24 UTC) Moonrise 8:24PMMoonset 7:22AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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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ANZ533 Chesapeake Bay From North Beach To Drum Point- 138 Am Edt Fri Mar 22 2019
.gale warning in effect through late tonight...
Overnight..W winds 20 to 25 kt with gusts to 40 kt. Waves 3 ft... Building to 5 ft late. Rain. Patchy fog. Vsby 1 to 3 nm.
Fri..W winds 25 kt with gusts to 40 kt. Waves 5 ft. Numerous showers.
Fri night..NW winds 20 to 25 kt with gusts to 40 kt. Waves 5 ft.
Sat..NW winds 15 to 20 kt with gusts to 35 kt. Waves 4 ft.
Sat night..NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
Sun..SW 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 N 10 to 15 kt. Waves 1 to 2 ft... Building to 3 ft after midnight. A chance of showers through the day, then showers likely through the night.
Tue..NE winds 10 to 15 kt. Waves 3 ft...subsiding to 2 ft after midnight. Showers likely in the morning.
ANZ500 138 Am Edt Fri Mar 22 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Low pressure will strengthen as it moves off to the northeast tonight through Friday night. High pressure will return for the weekend before low pressure and its associated cold front impact the waters early next week. A gale warning may be needed for portions of the waters late Friday night into Saturday morning. A small craft advisory will likely be needed later Saturday into Saturday night.


7 Day Forecast for Marine Location Near Chesapeake Beach, MD
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location: 38.68, -76.53     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 220231
afdlwx
area forecast discussion
national weather service baltimore md washington dc
1031 pm edt Thu mar 21 2019

Synopsis
Low pressure will intensify as it moves off to the northeast
tonight through Friday night. High pressure will return for the
weekend. Low pressure may impact the area early next week.

Near term until 6 am Friday morning
1030pm: have let the flood watch drop, and letting flood
warnings speak for themselves. Many roads are flooded and closed
across the area, with flooding persisting overnight as excess
rain runs off.

Previous discussion:
low pressure currently over lower maryland portion of the
chesapeake bay as of early this evening, lifting northeastward
while intensifying. Northwest winds have increased on the
backside of the low, gusting over 30 mph over northern virginia
into central maryland, and this will continue into the first
part of the overnight as rain gradually lifts out.

Many areas across central and northern virginia into north-
central maryland (including parts of the dc metro) have seen
creeks come up out of their banks resulting in minor flooding.

Residual runoff issues will likely linger through much of the
night. A few trees may be toppled due to the saturated ground.

Intermittent snow showers are likely along the allegheny front
overnight as northwest flow increases.

Short term 6 am Friday morning through Saturday night
The shortwave trough axis will be crossing the area Friday, bringing
multiple concerns: winds across the area, accumulating upslope snow,
and scattered showers areawide. On the first two, forecast skill not
the best; advisories possible on either but would rather not make
those decisions at this time. Have higher confidence on upslope snow
than winds. Scattered showers in vicinity of the trough also highly
likely. Would not rule out graupel given modest CAPE in forecast
soundings.

Breezy conditions will continue Friday night and Saturday as trough
axis exits. However skies will clear outside of the appalachians.

Scattered snow showers should continue into at least Friday evening
until inversion heights lower.

Long term Sunday through Thursday
High pressure will slowly move out of our region on Sunday as a
upper level trough moves southward into great lakes region. Winds
will become southerly as the high pressure shifts off of the coast
late Sunday into Monday. The upper level trough will move to our
north on Monday but a shortwave associated this trough will dig down
into our region on Monday. A surface low associated with shortwave
will pass through our area on Monday along with its associated
frontal boundary. Precipitation on Monday in most areas is expected
to start off as rain and finish off with a chance for wintry mix
toward the end of the event Monday evening. There still remains a
lot of uncertainty as the exact track of the surface low will
determine how much cold air moves into our region while
precipitation is still occurring. Precipitation is expected to fully
move out of our region by the mid morning periods on Tuesday.

High pressure will build into our region on Tuesday and linger
through the later parts of next week. Winds will become northerly
behind the frontal passage and linger through Wednesday. Another
chilly air mass will build into the region next week with daytime
temperatures hovering in the 40 and overnight temperatures in the
30s.

Aviation 03z Friday through Tuesday
Ifr lifting as low pressure begins to pull northeastward while
intensifying. Northwest winds in its wake could gust 25 to 30
knots overnight while CIGS continue to lift.

High pressure will be building from the west by late Friday and
will remain in control through Saturday.VFR conditions are
expected over the terminals Friday and Saturday. A tight
pressure gradient will cause a gradual increase in the winds on
Friday, with highest gusts expected late Friday afternoon into
Friday night. Gusts of around 40 knots possible. Winds will be
on the decrease on Saturday, gusting between 25 and 35 knots in
the morning and receding into the teens by Saturday evening.

On Sunday,VFR conditions expected as high pressure slowly moves off
shore and skies remain mostly clear. Winds will be out south to
southeasterly.

Monday, a cold front will pass through the region. Rain will be
likely with subvfr conditions likely.

Marine
Low pressure over lower md chesapeake as of early this evening,
lifting northeastward and intensifying. NW flow on the backside
of low pressure resulting resulting in at least intermittent
gale force gusts overnight. Gale warning now in effect from
tonight through 6 am Saturday. A reinforcing trough axis will
provide a better, deeply mixed environment Friday. Gale warnings
remain in effect Friday and Friday night. Gusty showers
possible Friday afternoon. Likely will need small craft
advisories Saturday.

On Sunday, winds will be 10 to 15 knots out of the south. At this
time small craft advisories aren't expected.

Monday, a cold front will move through the region. Winds could peak
over 18 knots especially Monday night into Tuesday. Small craft
advisories may be needed.

Lwx watches warnings advisories
Dc... Coastal flood advisory until 2 am edt Friday for dcz001.

Md... None.

Va... Winter weather advisory from 6 am to 9 pm edt Friday for
vaz503.

Wv... Winter weather advisory from 6 am to 9 pm edt Friday for
wvz501-503-505.

Marine... Gale warning until 6 am edt Saturday for anz530>543.

Synopsis... Hts
near term... Hts dhof
short term... Hts
long term... Jmg
aviation... Imr dhof jmg
marine... Hts dhof jmg


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BSLM2 - Chesapeake Bay, MD 12 mi114 min NW 9.9 42°F 999 hPa41°F
TPLM2 - Thomas Point, MD 16 mi24 min WNW 24 G 27 45°F 45°F998.2 hPa (-0.0)45°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 21 mi54 min NW 20 G 30 43°F 998.3 hPa
APAM2 - 8575512 - Annapolis, MD 21 mi54 min 46°F 997 hPa
CPVM2 23 mi54 min 47°F 47°F
SLIM2 - 8577330 - Solomons Island, MD 25 mi54 min WNW 13 G 21 43°F 46°F998.3 hPa
CA2 - 8571892 - Cambridge, MD 26 mi60 min 44°F 48°F995.9 hPa
WASD2 - 8594900 - Washington, DC 29 mi54 min NW 11 G 18 43°F 50°F1000.4 hPa
NCDV2 37 mi54 min NW 8.9 G 14
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 37 mi54 min NNW 22 G 26 47°F 997 hPa
FSNM2 37 mi54 min NW 30 G 36 44°F 996.7 hPa
PPTM2 - 8578240 - Piney Point, MD 38 mi54 min NW 31 G 37
TCBM2 - 8573364 - Tolchester Beach, MD 40 mi54 min NNW 19 G 22 47°F 48°F996.9 hPa
BLTM2 - 8574680 - Baltimore, MD 41 mi54 min N 16 G 24
BISM2 - 8571421 - Bishops Head, MD 41 mi54 min W 28 G 34 45°F 51°F997.9 hPa
44042 - Potomac, MD 46 mi30 min WNW 25 G 29 44°F 46°F1000 hPa
LWTV2 - 8635750 - Lewisetta, VA 47 mi54 min WNW 22 G 26

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, MD21 mi90 minNW 11 G 226.00 miFog/Mist49°F46°F93%997.4 hPa
Camp Springs / Andrews Air Force Base, MD21 mi88 minNW 16 G 2410.00 miLight Rain42°F39°F93%999.7 hPa
Bay Bridge Field, MD23 mi44 minNW 21 G 255.00 miLight Rain Fog/Mist and Breezy46°F46°F100%996.9 hPa

Wind History from ADW (wind in knots)
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Last 24hrCalmNE6NE7NE5NE6NE7N4N4N5N7N9N14NE8NE8NE8NW11NW14
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1 day agoCalmS3CalmCalmCalmCalmCalmCalmS3SE7E5
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2 days ago--CalmN4CalmCalmCalmN3NE4NE7CalmW3CalmN4W8N4CalmE9SE8E4SE4CalmCalmCalmCalm

Tide / Current Tables for Chesapeake Beach, Maryland (2)
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Chesapeake Beach
Click for Map
Fri -- 05:28 AM EDT     1.35 feet High Tide
Fri -- 07:06 AM EDT     Sunrise
Fri -- 08:21 AM EDT     Moonset
Fri -- 12:04 PM EDT     -0.14 feet Low Tide
Fri -- 06:03 PM EDT     1.16 feet High Tide
Fri -- 07:19 PM EDT     Sunset
Fri -- 09:24 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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00.20.50.81.21.31.31.10.80.50.2-0-0.1-0.10.20.50.81.11.21.10.90.60.30.1

Tide / Current Tables for Broomes Island, 0.4 mile south of, Maryland Current
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Broomes Island
Click for MapFlood direction 290 true
Ebb direction 110 true

Fri -- 01:36 AM EDT     0.55 knots Max Flood
Fri -- 05:03 AM EDT     -0.00 knots Slack
Fri -- 07:06 AM EDT     Sunrise
Fri -- 08:10 AM EDT     -0.63 knots Max Ebb
Fri -- 08:22 AM EDT     Moonset
Fri -- 11:24 AM EDT     0.00 knots Slack
Fri -- 02:03 PM EDT     0.44 knots Max Flood
Fri -- 05:14 PM EDT     -0.00 knots Slack
Fri -- 07:19 PM EDT     Sunset
Fri -- 08:19 PM EDT     -0.57 knots Max Ebb
Fri -- 09:23 PM EDT     Moonrise
Fri -- 11:18 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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0.40.50.50.40.30-0.3-0.5-0.6-0.6-0.4-0.10.20.40.40.40.30.1-0.2-0.4-0.6-0.5-0.4-0.1

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 (2,6,7,8)
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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.