Wednesday, February20, 2019 L-36.com


Marine Weather and Tides
Deale, 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 6:49AMSunset 5:50PM Wednesday February 20, 2019 5:07 AM EST (10:07 UTC) Moonrise 7:15PMMoonset 7:44AM Illumination 99% 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
    EDIT      (on/off)   Help
ANZ532 Chesapeake Bay From Sandy Point To North Beach- 339 Am Est Wed Feb 20 2019
.small craft advisory in effect from noon est today through this afternoon...
Rest of the overnight..E winds 5 kt. Waves less than 1 ft. Snow likely. Vsby 1 to 3 nm.
Today..E winds 5 to 10 kt. Gusts up to 20 kt in the late morning and afternoon. Waves 1 to 2 ft. Snow and rain or sleet or freezing rain. Vsby 1 nm or less.
Tonight..E winds 5 to 10 kt...becoming sw after midnight. Waves 1 to 2 ft. Rain.
Thu..W winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Thu night..NW winds 5 to 10 kt. Waves 1 ft.
Fri..N winds 5 kt. Waves less than 1 ft.
Fri night..E winds around 5 kt. Waves flat. A chance of rain.
Sat..S winds 5 to 10 kt. Waves 1 ft. Rain.
Sun..W winds 10 to 15 kt. Waves 2 ft. A chance of showers through the day.
ANZ500 339 Am Est Wed Feb 20 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A strong low pressure system will impact the region late tonight through Wednesday night. Low pressure will then push off to the north and east on Thursday as a frontal boundary passes through the waters. High pressure will build to the north on Friday and another cold front will cross the waters on Sunday. Small craft conditions will be possible on Thursday, and likely on Sunday.


7 Day Forecast for Marine Location Near Deale, MD
   Hourly   EDIT   Help
location: 38.76, -76.53     debug


Area Discussion for - Baltimore, MD/Washington
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 klwx 200850
afdlwx
area forecast discussion
national weather service baltimore md washington dc
350 am est Wed feb 20 2019

Synopsis Low pressure will track from the mississippi valley
into the great lakes today through tonight. Coastal low
pressure will develop along the mid-atlantic coast tonight
before moving off to our northeast Thursday. High pressure will
return Thursday night and Friday before another low pressure
impacts the area early next week.

Near term through tonight
Waa overrunning snow has begun across our southwest with snow
now being reported as far north as opal va and petersburg wv.

Upstream reports across west central va (roanoke area) indicate
a 4-hr period of heavy snow with an inch per hour snowfall
rates with snow having transitioned to sleet and freezing
drizzle in that area. Expect snow to continue to develop
northeast later this morning with snow transitioning to fzra pl
after 12z in the charlottesville area and across northern va and
dc around midday and the rest of the CWA by 21z as warm nose
lifts northward. Then, freezing rain rain in the late afternoon
and early evening becoming all rain everywhere by midnight
tonight. Expect generally 3-6 inches of snow in the warning area
with higher snow totals of 6-8 across northern and western md
and significant icing across northwestern va, eastern wv, and
western md roughly west of rt 15 and north of rt 33 in
harrisonburg.

Short term Thursday through Friday night
Cdfnt clears the area early on Thu with rain ending by 09z if
not sooner. High pressure then builds over the area Thu night
with next round of overrunning precip associated with developing
southern plains cyclone beginning late Fri night. Given milder
period ahead and high pressure at a more eastward position, this
appears to be a mostly rain event except possibly in far nw
maryland where some freezing rain is possible.

Long term Saturday through Tuesday
Warm front will be crossing the area Saturday, with more than enough
isentropic lift to induce a swath of precipitation. Thermal profiles
will be sufficiently warm for this to be all rain. With a trajectory
off of the gulf of mexico, anticipate that moisture won't be a
hinderance. Model guidance suggesting precipitable water will be
exceeding an inch... And approaching an impressive (for february) 1.5
inches by Saturday night. Any remaining snow should be melted away,
as temperatures drop little Saturday night in continued warm
advection. But, the rainfall and snowmelt could lead to flooding
concerns, as suggested by the naefs mmerf.

Temperatures will continue to rise well into the 60s on Sunday ahead
of a cold front, which may lead to additional showers. A tight
thermal gradient should lead to strong cold advection, and thus
windy conditions.

High pressure will build across the northeast Monday-Tuesday. Since
broad ridging remains 850-500 mb, temperatures don't drop
considerably... And will remains at or above climo normals Monday,
receding to near normal by Tuesday. (cold advection breezy
conditions will continue into Monday.) with a jetmax along the
central atlantic coast, systems will be progressive. Chance pops
will return by the end of the day Tuesday.

Aviation 08z Wednesday through Sunday
Developing lifr ifr conditions this morning as snow develops. A
4-hr period of heavy snow is expected with intense snowfall
rates of 1+ inch per hour is likely mainly in the 11z-17z time
frame. Then, snow changing to sleet and freezing rain in the
afternoon and eventually to rain late today or early this
evening. Kmrb will be the last to change to rain not likely
until 03z tonight. Rain ends late tonight around 09z with cigs
and vsbys improving.

Flight restrictions (MVFR to ifr) likely this weekend in rain.

Conditions may lift slightly Saturday night between warm and cold
frontal passages.

Marine
Marginal SCA conditions possible this afternoon and evening, but
confidence too low to issue an sca. Otherwise, light winds 10 kt
or less through Fri night.

Light (at or below 10 kt) south winds Saturday as a warm front
passes north of the waters. Mixing improves considerably Sunday
behind a cold front. Small craft advisory conditions likely on
Sunday.

Lwx watches warnings advisories
Dc... Winter storm warning until 7 pm est this evening for dcz001.

Md... Winter storm warning until 7 pm est this evening for mdz013-
503>506.

Winter storm warning until 1 am est Thursday for mdz003-004-
501-502.

Winter storm warning until 7 pm est this evening for mdz005-
006-011-014-507-508.

Winter weather advisory until 4 pm est this afternoon for
mdz016>018.

Va... Winter storm warning until 10 pm est this evening for vaz025-
026-036>038-503-504-507-508.

Winter storm warning until 7 pm est this evening for vaz039-
050>054-502-506.

Winter storm warning until 1 am est Thursday for vaz027>031-
040-501-505.

Winter weather advisory until 4 pm est this afternoon for
vaz055>057.

Wv... Winter storm warning until 10 pm est this evening for wvz505-
506.

Winter storm warning until 1 am est Thursday for wvz050>053-
055-501>504.

Marine... Small craft advisory from noon today to 6 pm est this evening
for anz531>533-539>542.

Small craft advisory from 10 am this morning to 10 pm est this
evening for anz534-537-543.

Synopsis... Lfr
near term... Lfr
short term... Lfr
long term... Hts
aviation... Lfr hts
marine... Lfr 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
BSLM2 - Chesapeake Bay, MD 10 mi158 min E 1.9 33°F 1036 hPa21°F
TPLM2 - Thomas Point, MD 11 mi68 min ENE 9.9 G 11 34°F 38°F1035.4 hPa (-2.0)15°F
APAM2 - 8575512 - Annapolis, MD 16 mi38 min 34°F 1034.4 hPa
CPVM2 18 mi38 min 34°F 13°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 26 mi38 min S 2.9 G 7 34°F
WASD2 - 8594900 - Washington, DC 27 mi38 min ESE 1.9 G 5.1 35°F 41°F1034.4 hPa
CA2 - 8571892 - Cambridge, MD 28 mi38 min 34°F 40°F1034.4 hPa
SLIM2 - 8577330 - Solomons Island, MD 31 mi38 min E 11 G 12 35°F 39°F1034.1 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 32 mi38 min SE 8.9 G 11 33°F 1034.7 hPa
FSNM2 32 mi44 min E 8 G 9.9 33°F 1033.9 hPa
BLTM2 - 8574680 - Baltimore, MD 35 mi38 min ESE 6 G 8 34°F 38°F1034.3 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 35 mi38 min E 4.1 G 5.1 32°F 40°F1034.8 hPa
NCDV2 41 mi38 min ESE 4.1 G 5.1 37°F 41°F1033.6 hPa
PPTM2 - 8578240 - Piney Point, MD 43 mi44 min ESE 11 G 12
BISM2 - 8571421 - Bishops Head, MD 45 mi38 min ENE 8 G 11 35°F 41°F1034.3 hPa

Wind History for Cove Point LNG Pier, MD
(wind in knots)    EDIT      (on/off)   Help
5
AM
6
AM
7
AM
8
AM
9
AM
-12
PM
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
4
AM
Last
24hr
N17
G21
N18
N20
N19
N15
G21
NE13
G16
NE8
G11
NE10
G13
N6
NE5
G8
N3
NE4
N2
NE3
NE1
S1
--
W2
S3
S3
E12
S3
G6
E7
G11
1 day
ago
SW8
G11
N13
G16
N6
NW3
W5
G8
W5
G8
N10
G13
NW17
G24
N13
G19
N15
G19
N14
G19
N18
G25
N23
N20
N24
G29
N17
G24
N19
NW17
G26
N23
N19
G25
N22
N15
G24
N15
G23
2 days
ago
E10
G14
NE10
G14
NE6
G9
E8
E6
E5
G8
--
N4
S4
SE1
G4
S3
SE3
--
N2
E5
SW4
S14
S10
G15
S7
S6
S11
S6
S8
S13
G16

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Annapolis, United States Naval Academy, MD15 mi74 minE 510.00 miOvercast37°F16°F42%1035 hPa
Bay Bridge Field, MD18 mi88 minN 010.00 miOvercast34°F15°F48%1036.2 hPa
Camp Springs / Andrews Air Force Base, MD19 mi72 minE 510.00 miMostly Cloudy33°F18°F56%1034.8 hPa

Wind History from NAK (wind in knots)
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
4
AM
Last 24hrN9NW6NW5NW7NW10NW9NW8NW7NW8W6W7NW6W4E4CalmCalmCalmNE3CalmE4E3E3E6E5
1 day agoNW5CalmNW4CalmNW3NW6W10
G24
NW8
G20
NW17
G27
NW16
G28
NW15
G35
NW15
G35
NW13
G28
NW12
G29
NW13
G23
NW11NW10
G24
NW10
G21
NW11N9NW11NW12NW10NW11
G18
2 days agoNE3N3NE4E3E8E93SE4E5SE4SE4SE8SE4SE4SE7S6CalmNW3S3SE105SE9S6Calm

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 -- 03:48 AM EST     0.81 feet High Tide
Wed -- 06:51 AM EST     Sunrise
Wed -- 07:43 AM EST     Moonset
Wed -- 10:11 AM EST     -0.39 feet Low Tide
Wed -- 04:37 PM EST     1.08 feet High Tide
Wed -- 05:49 PM EST     Sunset
Wed -- 07:15 PM EST     Moonrise
Wed -- 11:12 PM EST     -0.13 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
0.10.30.60.80.80.70.50.2-0.1-0.3-0.4-0.3-0.10.20.50.911.10.90.70.40.2-0-0.1

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
   EDIT      (on/off)   Help   One Week of Data
Baltimore Harbor Approach
Click for Map
Wed -- 02:46 AM EST     0.00 knots Slack
Wed -- 05:35 AM EST     0.81 knots Max Flood
Wed -- 06:50 AM EST     Sunrise
Wed -- 07:43 AM EST     Moonset
Wed -- 08:28 AM EST     -0.00 knots Slack
Wed -- 11:29 AM EST     -0.87 knots Max Ebb
Wed -- 02:23 PM EST     0.00 knots Slack
Wed -- 05:43 PM EST     1.11 knots Max Flood
Wed -- 05:48 PM EST     Sunset
Wed -- 07:14 PM EST     Moonrise
Wed -- 08:56 PM EST     -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
-1.1-0.8-0.40.10.50.80.80.60.2-0.2-0.6-0.8-0.8-0.6-0.20.30.711.10.90.5-0-0.5-0.9

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.