Monday, August26, 2019 L-36.com


Marine Weather and Tides
Arden on the Severn, 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 6:28AMSunset 7:47PM Monday August 26, 2019 5:13 AM EDT (09:13 UTC) Moonrise 12:54AMMoonset 4:05PM Illumination 18% 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
ANZ538 Patapsco River Including Baltimore Harbor- 435 Am Edt Mon Aug 26 2019
.small craft advisory in effect through this afternoon...
Rest of the overnight..NE winds 10 kt with gusts to 20 kt. Waves 1 ft.
Today..E winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Tonight..E winds 5 to 10 kt. Waves 1 ft.
Tue..E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Tue night..SE winds 5 kt. Waves less than 1 ft. A chance of showers.
Wed..S winds 5 kt. Waves flat. Showers likely with a chance of tstms.
Wed night..W winds 5 kt. Waves flat. A chance of showers.
Thu..NW winds 5 kt. Waves less than 1 ft. A chance of showers in the morning.
Fri..SW winds 5 kt. Waves less than 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 435 Am Edt Mon Aug 26 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will remain parked across new england through Tuesday while low pressure spins off the southeast coast. Both of these systems will depart to the east during the middle of the week as a cold front approaches from the ohio valley. The front is expected to cross the area by Thursday. Small craft advisories may need to be extended through Monday night.


7 Day Forecast for Marine Location Near Arden on the Severn, MD
   Hourly   EDIT   Help
location: 39.07, -76.58     debug


Area Discussion for - Baltimore, MD/Washington
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 klwx 260757
afdlwx
area forecast discussion
national weather service baltimore md washington dc
357 am edt Mon aug 26 2019

Synopsis
Strong high pressure will build north of the region today. Low
pressure will likely develop off the carolina coast today into
tonight. This low is expected to move out to sea Tuesday. A cold
front will cross the region on Wednesday.

Near term through tonight
High pressure will build to our north today before moving to the
northeast tonight. A persistent wind from the northeast then from
the east later today and tonight will usher in additional low-level
moisture. There is a chance for a few rain showers to develop mainly
across southern maryland and the virginia piedmont today into
tonight. An upslope component to the wind along the eastern slopes
of the blue ridge and potomac highlands could yield a few showers as
well. Temperatures will reach the middle 70s then fall only into the
middle 60s tonight.

Short term Tuesday through Wednesday night
Low pressure developing off the carolina coast will move northeast
and should stay offshore of the eastern seaboard Tuesday through
Wednesday night. An upper level trough of low pressure sweeping in
from the great lakes and ohio valley will prevent the coastal low
from impacting the east coast with any gusty winds and heavy rain.

The upper trough moving in from the west will increase our
chances of encountering rain showers and perhaps a thunderstorm
or two on Wednesday. The best chance for seeing scattered to
widespread rain showers will be Wednesday with the upper level
trough and associated surface cold front. Temperatures and
dewpoint temperatures are expected to be warmer Tuesday than
today. The same GOES for Wednesday ahead of the upper trough and
associated cold front.

Long term Thursday through Sunday
In the wake of the cold front, continental high pressure
beneath rather flat mid upper level flow will close out the
week. Believe that both Thursday and Friday will be dry, with
temperatures near climo. Humidity levels will be kept in check
too.

For the weekend, a disturbance in the northern stream (along the
us canadian border) will drop a cold front toward the mid atlantic.

Thus, chance pops return to the forecast, especially on Sunday. That
said, it remains to be seen how prolonged the showers will be.

Temperatures in the mid-upper 80s would be a couple of degrees above
average. Due to the anticipated clouds showers, Sunday likely to be
slightly cooler.

Aviation 08z Monday through Friday
Vfr conditions expected with high pressure to the north then to the
northeast today. Any showers should be isolated. As for Tuesday
into Wednesday, the chances of additional showers or perhaps a
rumble of thunder impacting our terminals increases but is not
yet definite. Winds northeast to east around 10 knots through
Monday night. Winds southeasterly around 10 knots Tuesday into
Tuesday night. Winds becoming more southerly to south-
southwesterly around 10 to 15 knots Wednesday into Wednesday
night.

Vfr flight conditions anticipated thu-fri.

Marine
A small craft advisory remains in effect through this afternoon for
much of the chesapeake bay and tidal potomac. An additional small
craft advisory or extension has been issued for this evening
into the middle part of the overnight.

Winds will be light east Tuesday, becoming south on Wednesday.

Winds will be locally higher on Wednesday in vicinity of
thunderstorms in association with a passing cold front. Northwest
flow Thursday will become light southwest south Friday. The
pressure gradient likely will be weak enough to preclude any
advisories throughout this period.

Tides coastal flooding
Current water level departures in the neighborhood of a foot above
astronomical predictions. Even with minor fluctuations, believe that
the current tide cycle will reach action but sneak in just under the
minor flood threshold. This solution higher than etss guidance.

As low pressure tracks up the coast over the next day or two,
east northeast flow will push additional water toward the atlantic
shoreline. While there is a spread in operational forecast guidance
solutions, the respective ensembles holding true to their own camp.

In light of current trends, would rather go on the higher side of
the envelope... But it is unclear how effectively water will work
against northeast flow. Lighter surface winds (which is
anticipated) should translate to a greater tidal response.

The daytime cycles are the lower astronomically. Therefore, cycles
to watch for minor flooding will be late tonight early Tuesday
morning as well as late Tuesday night early Wednesday morning.

Lwx watches warnings advisories
Dc... None.

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory until 6 pm edt this evening for anz531-
538-539.

Small craft advisory until 2 am edt Tuesday for anz532>534-537-
540>543.

Small craft advisory until 6 am edt early this morning for
anz530-536.

Synopsis... Klw
near term... Klw
short term... Klw
long term... Hts
aviation... Klw hts
marine... Klw hts
tides coastal flooding... Hts


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
APAM2 - 8575512 - Annapolis, MD 8 mi73 min 67°F 1021.1 hPa (-0.5)
CPVM2 11 mi73 min 67°F 65°F
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 11 mi73 min NE 9.9 G 11 65°F 1021.6 hPa (-0.8)
FSNM2 11 mi79 min NNE 8.9 G 12 64°F 1021.4 hPa
BLTM2 - 8574680 - Baltimore, MD 14 mi73 min ENE 8 G 12 65°F 80°F1021.4 hPa (-0.7)
TPLM2 - Thomas Point, MD 14 mi73 min NNE 15 G 17 67°F 78°F1022.1 hPa (-0.7)63°F
TCBM2 - 8573364 - Tolchester Beach, MD 20 mi79 min NE 1.9 G 5.1 64°F 78°F1021.9 hPa
BSLM2 - Chesapeake Bay, MD 21 mi163 min NNW 1 62°F 1022 hPa61°F
WASD2 - 8594900 - Washington, DC 27 mi73 min NE 2.9 G 6 66°F 81°F1021.6 hPa (-0.6)
44062 - Gooses Reef, MD 37 mi73 min NE 14 G 16 69°F 2 ft1021.5 hPa
CA2 - 8571892 - Cambridge, MD 44 mi79 min NNE 11 G 13 66°F 77°F1020.1 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 47 mi73 min NNE 15 G 19 68°F 1021.2 hPa (-0.8)

Wind History for Francis Scott Key Bridge NE Tower, MD
(wind in knots)    EDIT      (on/off)   Help
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
-12
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
Last
24hr
NE11
NE11
G14
N11
NE12
G16
NE16
NE14
G19
NE14
G18
NE14
G20
NE12
G18
NE12
G15
NE12
NE13
G16
NE13
G16
NE11
G16
E14
E13
E15
NE12
G15
E15
NE11
G14
N6
N9
NE9
G13
1 day
ago
N12
G15
N12
G15
N14
N11
G14
N11
NE9
G12
NE7
G10
NE8
NE9
NE6
NE6
G9
NE8
N9
NE8
NE8
N8
N9
NE9
N10
NE9
NE10
E8
NE7
NE7
2 days
ago
N8
N10
N11
N10
N13
N14
N11
N9
G13
N9
G12
N12
N9
N7
G12
NW10
N5
G9
NW8
NW8
NW8
NW5
N9
G12
N8
G11
N12
G15
N13
G17
N14
G17
N13
G16

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Annapolis, United States Naval Academy, MD8 mi2.3 hrsVar 510.00 miFair70°F62°F76%1021.7 hPa
Baltimore, Baltimore-Washington International Airport, MD10 mi2.3 hrsNE 610.00 miMostly Cloudy65°F57°F78%1021.7 hPa
Fort Meade / Tipton, MD10 mi70 minN 010.00 miFair55°F55°F100%1022.3 hPa
Baltimore, Inner Harbor, MD15 mi2.3 hrsno data mi66°F57°F75%1022.2 hPa
Bay Bridge Field, MD15 mi3.2 hrsENE 910.00 miFair66°F60°F83%1021.7 hPa
College Park Airport, MD19 mi70 minN 010.00 miFair59°F57°F94%1021.3 hPa
Baltimore / Martin, MD20 mi71 minNW 310.00 miPartly Cloudy63°F60°F94%1022.3 hPa
Camp Springs / Andrews Air Force Base, MD23 mi17 minNE 810.00 miFair62°F58°F90%1021.5 hPa

Link to 5 minute data for KNAK

Wind History from NAK (wind in knots)
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
12
AM
1
AM
2
AM
3
AM
Last 24hrNE4NE3NE5N5NE8NE9
G18
NE11
G20
NE14
G20
N11NE12
G17
NE7
G15
N10
G17
--E9E12E6E5E11E8E11
G17
------5
1 day agoN7N6N7N6N7N9N10N7N5N846CalmNE5N8N9N6N4N4E5--E4----
2 days ago--W3N6N7N8--N12N13
G19
N10N7N8N10N5NE5N8NW7NW8NW5W4--N8----N7

Tide / Current Tables for Brewer Point, Maryland
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Brewer Point
Click for Map
Mon -- 01:54 AM EDT     Moonrise
Mon -- 02:23 AM EDT     1.40 feet High Tide
Mon -- 06:29 AM EDT     Sunrise
Mon -- 10:03 AM EDT     0.49 feet Low Tide
Mon -- 02:31 PM EDT     0.85 feet High Tide
Mon -- 05:04 PM EDT     Moonset
Mon -- 07:45 PM EDT     Sunset
Mon -- 08:24 PM EDT     0.28 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
1.11.31.41.41.31.110.80.70.50.50.50.60.80.80.80.80.60.50.40.30.30.40.6

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
   EDIT      (on/off)   Help   One Week of Data
Baltimore Harbor Approach
Click for Map
Mon -- 01:53 AM EDT     Moonrise
Mon -- 02:04 AM EDT     0.99 knots Max Flood
Mon -- 05:43 AM EDT     -0.00 knots Slack
Mon -- 06:28 AM EDT     Sunrise
Mon -- 09:01 AM EDT     -0.82 knots Max Ebb
Mon -- 12:50 PM EDT     0.00 knots Slack
Mon -- 03:00 PM EDT     0.32 knots Max Flood
Mon -- 05:03 PM EDT     Moonset
Mon -- 05:16 PM EDT     -0.00 knots Slack
Mon -- 07:45 PM EDT     Sunset
Mon -- 08:24 PM EDT     -0.54 knots Max Ebb
Mon -- 11:05 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
0.60.910.90.70.3-0.1-0.5-0.7-0.8-0.7-0.5-0.200.20.30.20.1-0.2-0.4-0.5-0.5-0.3-0

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Baltimore, MD/Washington (5,6,7,8)
      (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.