Wednesday, November20, 2019 L-36.com


Marine Weather and Tides
Mayo, MD

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
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 6:52AMSunset 4:50PM Wednesday November 20, 2019 9:58 AM EST (14:58 UTC) Moonrise 12:00AMMoonset 1:40PM Illumination 40% Phase: Third Quarter Moon; Moon at 23 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- 638 Am Est Wed Nov 20 2019
.small craft advisory in effect through late tonight...
Today..NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Tonight..NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Thu..SW winds 5 to 10 kt. Waves 1 ft.
Thu night..S winds 5 to 10 kt. Waves 1 ft.
Fri..W winds 10 kt. Waves 1 ft. Showers likely.
Fri night..NW winds 5 to 10 kt with gusts to 20 kt. Waves 2 ft.
Sat..NE winds 5 to 10 kt...becoming n. Waves 1 ft. Rain likely .
Sun..NW winds 10 to 15 kt. Waves 1 ft.
ANZ500 638 Am Est Wed Nov 20 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build overhead through the middle of the week. A cold front will cross the region by week's end. Small craft advisories may be needed for portions of the weekend.


7 Day Forecast for Marine Location Near Mayo, MD
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location: 38.87, -76.47     debug


Area Discussion for - Baltimore, MD/Washington
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ftp://tgftp.nws.noaa.gov/data/raw/fx/fxus61.klwx.afd.lwx.txt <- there really should be an address herer AEFXUS61 KLWX 200901 AFDLWX Area Forecast Discussion National Weather Service Baltimore MD Washington DC 401 AM EST Wed Nov 20 2019

SYNOPSIS High pressure will build in from the west through Thursday. A cold front will move across the region Friday afternoon. A low pressure system will approach the area late Saturday into Sunday.

NEAR TERM THROUGH TONIGHT An upper level trough of low pressure will pivot across the region today and tonight. There could be some upslope rain or snow showers in the Potomac Highlands mainly through midday today. High pressure will build in from the west later today and tonight before moving to the East Coast later tonight. High temperatures today will be a little cool based on the cloud cover and a gusty northwest breeze that will advect cooler and drier air into the region. Lows tonight will be seasonable.

SHORT TERM THURSDAY THROUGH FRIDAY NIGHT High pressure and ridging aloft will reside over the Eastern Seaboard throughout the day Thursday. Highs Thursday will be near normal as winds back around from the northwest to the south. Low pressure will track northeastward from the Central U.S. into the Great Lakes, lifting a warm front through the Mid Atlantic Region Thursday night. A few showers will be possible Thursday night as a result.

A cold front will move across the region on Friday. While the morning hours on Friday look to remain mostly dry,especially for the metro area, anticipate showers developing by the early afternoon over the Appalachians with spotty showers persisting throughout the remainder of the day elsewhere.

LONG TERM SATURDAY THROUGH TUESDAY Strengthening low pressure over the TN valley will spread rain back into the area Saturday into Saturday night. Initially, there is an in-situ cold air damming signature in the MSLP pattern and 1000-850 mb thickness lines which may result in some light FZRA at higher elevs at onset of precip. GFS soundings show wet-bulb temperatures below OC between 1-3 kft Saturday afternoon. November is also a notorious month for having surprising ice storms on Skyline Drive and at other high elev locations. Low pressure moves offshore by 12Z Sun with precip ending late Sat night. Then, high pressure over the region during the first half of next week keeping fair weather conditions.

AVIATION 09Z WEDNESDAY THROUGH SUNDAY VFR conditions through Thursday night as high pressure builds in from the west and slides east to the East Coast ahead of a cold front. The cold front is expected to slice across the region and bring a wind shift to the northwest and gusty. MVFR conditions possible with rain showers Friday into Friday evening. Winds northwest 10 to 15 knots gusts 20 knots today, diminishing tonight.

Winds northwest backing to the south around 10 knots Friday into Friday evening.

IFR conditions appear likely on Saturday in rain as low pressure tracks across the area. Then, gusty NW winds 20-25 kt late Sat night into Sunday.

MARINE Small craft advisories are in effect today into most of tonight.

Small craft advisories may return on Friday with a gusty southwest breeze becoming northwest late Friday.

Small Craft Advzy conditions likely late Sat night and Sunday.

TIDES COASTAL FLOODING Anomalies are dropping and no more CF.Y needed.

LWX WATCHES WARNINGS ADVISORIES DC... None.

MD... None.

VA... None.

WV... None.

MARINE... Small Craft Advisory from 9 AM this morning to 6 PM EST this evening for ANZ530>543.

SYNOPSIS... LFR NEAR TERM... KLW SHORT TERM... KLW LONG TERM... LFR AVIATION... LFR KLW MARINE... LFR KLW TIDES COASTAL FLOODING... LFR
Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TPLM2 - Thomas Point, MD 3 mi58 min W 8 G 8.9 46°F 49°F1017.6 hPa (+2.4)38°F
44063 - Annapolis 7 mi34 min NNE 9.7 G 12 47°F 48°F1017.3 hPa
APAM2 - 8575512 - Annapolis, MD 8 mi58 min 47°F 1016.2 hPa (+2.4)
CPVM2 10 mi58 min 47°F
BSLM2 - Chesapeake Bay, MD 14 mi148 min Calm 42°F 1015 hPa39°F
44062 - Gooses Reef, MD 22 mi34 min N 12 G 14 47°F 1017.8 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 24 mi58 min NW 12 G 14 47°F 1016.5 hPa (+2.2)
FSNM2 24 mi64 min NW 16 G 18 47°F 1016.1 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 27 mi64 min NNW 7 G 8.9 46°F 49°F1016.7 hPa
BLTM2 - 8574680 - Baltimore, MD 28 mi58 min N 7 G 11 1016.3 hPa (+2.5)
CA2 - 8571892 - Cambridge, MD 29 mi64 min WNW 7 G 8.9 46°F 47°F1016.3 hPa
WASD2 - 8594900 - Washington, DC 29 mi58 min NW 7 G 12 1017.5 hPa (+2.6)
SLIM2 - 8577330 - Solomons Island, MD 38 mi58 min NW 7 G 9.9 47°F 51°F1016.5 hPa (+2.8)
NCDV2 48 mi64 min NW 5.1 G 7 48°F 52°F1016.6 hPa

Wind History for Francis Scott Key Bridge NE Tower, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Annapolis, United States Naval Academy, MD8 mi64 minNW 57.00 miOvercast47°F37°F69%1016.9 hPa
Bay Bridge Field, MD10 mi63 minNW 77.00 miOvercast with Haze46°F39°F76%1016.6 hPa
Camp Springs / Andrews Air Force Base, MD21 mi2 hrsNW 610.00 miOvercast46°F35°F66%1016.7 hPa
Easton / Newman Field, MD22 mi68 minWNW 310.00 miMostly Cloudy46°F39°F76%1017.6 hPa
Fort Meade / Tipton, MD22 mi85 minNW 310.00 miOvercast43°F37°F81%1017.6 hPa

Link to 5 minute data for KADW

Wind History from ADW (wind in knots)
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Last 24hrCalmCalmSW5SW6NW6W6W5W3CalmSW3CalmCalmCalmCalmCalmCalmNW5N4N3CalmCalmCalmNW6NW8
1 day agoCalmCalm--CalmCalmCalmSW3W5W4CalmCalmCalmCalmCalmCalmCalmCalmCalmSW4SW6SW5SW6--SW4
2 days agoN10NE7NE8NE8NE5N7N9NE7N8N8N7N7N7N6N8N3NE5N6N5CalmN3N4N3Calm

Tide / Current Tables for Thomas Point Shoal Light, Maryland
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Thomas Point Shoal Light
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Wed -- 05:03 AM EST     0.15 feet Low Tide
Wed -- 06:53 AM EST     Sunrise
Wed -- 11:05 AM EST     0.71 feet High Tide
Wed -- 01:39 PM EST     Moonset
Wed -- 04:41 PM EST     0.13 feet Low Tide
Wed -- 04:48 PM EST     Sunset
Wed -- 11:29 PM EST     1.01 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.80.60.30.20.10.20.30.40.60.70.70.70.60.40.30.20.10.20.40.60.70.91

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Wed -- 01:47 AM EST     -0.00 knots Slack
Wed -- 05:12 AM EST     -0.85 knots Max Ebb
Wed -- 06:53 AM EST     Sunrise
Wed -- 08:40 AM EST     0.00 knots Slack
Wed -- 11:40 AM EST     0.66 knots Max Flood
Wed -- 01:39 PM EST     Moonset
Wed -- 02:51 PM EST     -0.00 knots Slack
Wed -- 04:48 PM EST     Sunset
Wed -- 05:40 PM EST     -0.53 knots Max Ebb
Wed -- 08:28 PM EST     0.00 knots Slack
Wed -- 11:41 PM EST     0.67 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.3-0.1-0.4-0.7-0.8-0.8-0.6-0.20.10.40.60.70.50.3-0-0.3-0.5-0.5-0.4-0.10.20.40.6

Weather Map
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wmap_A
GEOS 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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