Tuesday, July23, 2019 L-36.com


Marine Weather and Tides
Baltimore Highlands, MD

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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 5:57AMSunset 8:28PM Tuesday July 23, 2019 9:38 AM EDT (13:38 UTC) Moonrise 11:16PMMoonset 11:08AM Illumination 61% Phase: Waning Gibbous; Moon at 21 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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ANZ538 Patapsco River Including Baltimore Harbor- 900 Am Edt Tue Jul 23 2019
Today..W winds 5 to 10 kt. Waves 1 ft or less. Showers early this morning, then a chance of showers this afternoon.
Tonight..NW winds 5 kt. Waves less than 1 ft.
Wed..N winds 5 to 10 kt. Waves 1 ft.
Wed night..N winds around 5 kt. Waves 1 ft or less.
Thu..N winds 5 kt. Waves flat.
Thu night..SE winds around 5 kt. Waves flat.
Fri..S winds around 5 kt. Waves flat.
Sat..S winds around 5 kt. Waves 1 ft.
ANZ500 900 Am Edt Tue Jul 23 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front will move off to the southeast today and high pressure will approach tonight through Wednesday before settling overhead during the latter portion of the week through the weekend.


7 Day Forecast for Marine Location Near Baltimore Highlands, MD
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location: 39.26, -76.6     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 230744
afdlwx
area forecast discussion
national weather service baltimore md washington dc
344 am edt Tue jul 23 2019

Synopsis
A cold front will continue to drop to the southeast today while
an upper-level disturbance passes through the area. High
pressure will build toward the regon tonight through Wednesday
before settling overhead for late this week through the weekend.

Near term through tonight
A cold front is located over southern maryland early this
morning and the boundary will continue to drop to our southeast
for the rest of today. However, an anomalous upper-level trough
over the ohio valley will continue to dig south and east over
our area today. An upper-level disturbance ahead of the trough
will pass through the area, and this will bring another round of
showers across the washington and baltimore metro areas,
central and southern maryland, and central virginia. Heavier
showers and perhaps even a thunderstorm are possible across
central virginia into southern maryland where there will be a
little more instability to work with, but farther north and west
across the metro areas additional rainfall amounts will be
light. The threat for flood and flash flooding has diminished
since the heavier rainfall from this point on will be across
areas that have not received much rainfall from this event.

Therefore, the flash flood watch has been cancelled for all
locations.

Farther north and west, drier air will limit precipitation early
this morning, but popup showers are expected later this morning
and afternoon due to limited instability from the colder air
aloft associated with the upper-level trough. An isolated
thunderstorm cannot be ruled out across these areas either.

A northwest flow along with plenty of clouds will allow for
temperatures to be much cooler than previous days. Most likely
high temperatures will be in the mid to upper 70s for most
locations.

The upper-level disturbance will move off to the east tonight.

In fact, weak coastal low pressure may develop as this system is
moving away from the area this evening. A few showers are
possible this evening, but most areas will dry out overnight as
the system departs. Cooler and less humid conditions are
expected tonight compared to recent nights.

Short term Wednesday through Thursday night
Surface high pressure will build toward the region Wednesday,
but the upper-level trough will remain overhead. Most areas will
turn out dry for much of the day, but an isolated shower cannot
be ruled out during the late morning through early evening
hours. Any precipitation will be light. More sunshine is
expected before a CU deck develops and this will allow for max
temps to rebound well into the 80s.

The upper-level trough will begin to lift out of the region
Wednesday night through Thursday night while surface high
pressure builds overhead. Dry and seasonable conditions are
expected during this time, and humidity will remain on the lower
side for this time of year.

Long term Friday through Monday
The long term period will be dominated by surface high pressure
as heights rise aloft. High pressure will be centered overhead
on Friday, and then will be moving into the western atlantic on
Saturday. High pressure will be wedging into the mid-atlantic
states Saturday night into Monday. These conditions will provide
a period of light winds and dry conditions over our area from
Friday and into Monday. A cold front will approach our region
Monday night into Tuesday, which could bring back precipitation
over our area.

Temperatures will remain near normal for this time of the year,
with highs in the 80s, and lows in the 60s -lower values at
higher elevations-.

Aviation 07z Tuesday through Saturday
MVFR CIGS should give way toVFR CIGS as drier air filters in
from the northwest this morning. However, showers are expected
across most of the terminals (coverage will be more scattered
farther north and west toward kmrb). Brief MVFR conditions are
possible in showers.

Showers will gradually become more isolated to scattered as
drier air filters in this afternoon, but brief MVFR conditions
cannot be completely ruled out.VFR is more likely and that is
in the forecast at this time. High pressure will build overhead
for tonight through Thursday night andVFR conditions are
expected.

Vfr conditions expected Friday into Sunday with high pressure in
control.

Marine
A cold front will drop to our south this morning. A pressure
surge will cause gusts around 20 knots during this time, so an
sca remains in effect for the bay and lower middle tidal potomac
river. Winds should weaken this afternoon as the gradient
subsides. However, weak low pressure will move offshore later
tonight and another pressure surge is expected. An SCA is in
effect for north to northwest winds over the middle bay and
lower tidal potomac late tonight into midday Wednesday.

High pressure will settle over the waters later Wednesday
through Thursday night.

Light winds sub-sca and dry conditions expected Friday into
Sunday with high pressure in control.

Lwx watches warnings advisories
Dc... None.

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory until noon edt today for anz530>534-
536>543.

Small craft advisory from 4 am to 2 pm edt Wednesday for
anz532>534-537-540-541-543.

Synopsis... Bjl
near term... Bjl
short term... Bjl
long term... Imr
aviation... Bjl imr
marine... Bjl imr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BLTM2 - 8574680 - Baltimore, MD 1 mi57 min NW 4.1 G 9.9 71°F 82°F1011.6 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 5 mi57 min W 9.9 G 11 71°F 1011.9 hPa
FSNM2 5 mi63 min W 8.9 G 12 70°F 1011.8 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 19 mi57 min WNW 8.9 G 17 72°F 86°F1012.1 hPa
APAM2 - 8575512 - Annapolis, MD 20 mi51 min 71°F 1011.8 hPa
CPVM2 21 mi51 min 71°F 71°F
44063 - Annapolis 22 mi33 min NW 9.7 G 12 71°F 84°F1012.2 hPa
TPLM2 - Thomas Point, MD 26 mi39 min W 14 G 16 70°F 83°F1013.2 hPa (+1.7)66°F
WASD2 - 8594900 - Washington, DC 35 mi57 min NW 6 G 9.9 71°F 87°F1012.9 hPa
CHCM2 - 8573927 - Chesapeake City, MD 46 mi57 min W 5.1 G 7 70°F 88°F1011.5 hPa

Wind History for Baltimore, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Baltimore, Inner Harbor, MD1 mi45 minno data mi71°F64°F79%1012.4 hPa
Baltimore, Baltimore-Washington International Airport, MD6 mi45 minW 610.00 miLight Rain70°F66°F90%1012.2 hPa
Baltimore / Martin, MD11 mi49 minWSW 57.00 miOvercast72°F69°F94%1012.5 hPa
Fort Meade / Tipton, MD15 mi57 minW 55.00 mi68°F66°F94%1013.5 hPa
Annapolis, United States Naval Academy, MD20 mi45 minW 810.00 miLight Rain73°F66°F81%1012.4 hPa
Bay Bridge Field, MD24 mi59 minWNW 910.00 miLight Rain72°F66°F83%1012.2 hPa

Wind History from BWI (wind in knots)
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1 day agoNW11NW11W7NW8W7
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2 days agoW7NW8
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Tide / Current Tables for Middle Branch, Baltimore Harbor, Maryland
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Middle Branch
Click for Map
Tue -- 12:13 AM EDT     1.33 feet High Tide
Tue -- 05:58 AM EDT     Sunrise
Tue -- 06:15 AM EDT     0.70 feet Low Tide
Tue -- 12:00 PM EDT     1.38 feet High Tide
Tue -- 12:08 PM EDT     Moonset
Tue -- 06:41 PM EDT     0.39 feet Low Tide
Tue -- 08:26 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.31.210.90.80.70.70.811.21.31.41.31.20.90.70.50.40.40.50.70.91.2

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Tue -- 02:02 AM EDT     -0.00 knots Slack
Tue -- 04:45 AM EDT     -0.50 knots Max Ebb
Tue -- 05:58 AM EDT     Sunrise
Tue -- 07:35 AM EDT     0.00 knots Slack
Tue -- 10:33 AM EDT     0.54 knots Max Flood
Tue -- 12:07 PM EDT     Moonset
Tue -- 01:23 PM EDT     -0.00 knots Slack
Tue -- 04:49 PM EDT     -0.76 knots Max Ebb
Tue -- 08:06 PM EDT     0.00 knots Slack
Tue -- 08:25 PM EDT     Sunset
Tue -- 11:25 PM EDT     0.77 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.30-0.3-0.5-0.5-0.4-0.20.10.40.50.50.40.1-0.2-0.5-0.7-0.8-0.6-0.4-00.30.60.8

Weather Map and Satellite Images
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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.
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Wind Forecast for Baltimore, MD/Washington (9,2,3,4)
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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.