Friday, September18, 2020
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Marine Weather and Tides
Tilghman Island, MD

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 6:47AMSunset 7:08PM Friday September 18, 2020 7:53 PM EDT (23:53 UTC) Moonrise 7:01AMMoonset 7:17PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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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ANZ541 Choptank River To Cambridge Md And The Little Choptank River- 737 Pm Edt Fri Sep 18 2020
.small craft advisory in effect through Saturday morning...
Tonight..N winds 15 kt...increasing to 20 to 25 kt late this evening and overnight. Gusts up to 30 kt. Waves 2 to 3 ft.
Sat..NE winds 15 to 20 kt with gusts to 30 kt... Diminishing to 10 kt late. Waves 2 ft.
Sat night..NE winds 10 to 15 kt. Waves 1 ft.
Sun..NE winds 10 to 15 kt. Waves 1 ft.
Sun night..NE winds 10 to 15 kt. Waves 1 ft.
Mon..NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Mon night..N winds 5 to 10 kt. Waves 1 ft.
Tue..NW winds 5 to 10 kt. Waves 1 ft.
Wed..W winds 5 to 10 kt. Waves 1 ft.
ANZ500 737 Pm Edt Fri Sep 18 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Canadian high pressure will build from the great lakes toward the northeast and middle atlantic through early next week as hurricane teddy swirls northward well offshore. Small craft advisories may need to be extended into Saturday afternoon and night, and may be needed again Sunday into Monday.


7 Day Forecast for Marine Location Near Tilghman Island, MD
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location: 38.71, -76.32     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 182300 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 700 PM EDT Fri Sep 18 2020

SYNOPSIS. High pressure centered in the western Great Lakes this afternoon will build slowly to the east. The air mass is forecast to settle along the Appalachians early in the new week. The high should continue to influence our weather into Thursday. A weak cold front approaching from the northwest is expected to arrive early on Friday.

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/. High pressure will continue to affect our weather tonight with dry and cool air advecting across the region. As winds decrease slightly (though speeds may stay near 10 mph through the night), and clouds decrease, expect radiational cooling to be efficient overnight. Therefore, lowered min temperature forecast to be closer to the cooler side of guidance. One potential question mark is the coastal plains - if the low and mid level clouds are slower to move out, temperatures may not drop as much - at least for the first half of the night.

Even with lowering min T slightly, it still looks like frost should be limited to sheltered valleys in Carbon, Monroe, and Sussex (NJ) Counties. Therefore, will continue to hold off on issuing a frost advisory as it appears that the areas affected will be limited.

SHORT TERM /6 AM SATURDAY MORNING THROUGH 6 PM SATURDAY/. High pressure over the Great Lakes will continue to build across the MIddle Atlantic. Fair weather with cool dry air will remain in place. Mostly sunny skies are expected with temperatures topping out mostly in the 60s across the area. These highs will be roughly 10 degree below normal for mid- September. Winds will be mostly N to NE at 5 to 10 mph.

LONG TERM /SATURDAY NIGHT THROUGH FRIDAY/. The weather over the western North Atlantic will remain rather active from Sunday into the early part of the new week. Meanwhile, conditions will be tranquil in our area.

High pressure is forecast to be centered in the Saint Lawrence River Valley and vicinity on Saturday night and Sunday. The air mass is expected to build southward along the Appalachians on Monday and Tuesday, before drifting eastward across the Carolinas and off the coast on Wednesday and Thursday. The high should bring dry weather to our region during the period.

Below normal temperatures are anticipated for Sunday, Monday and Tuesday, as we welcome autumn. Patchy frost is possible up north early on Sunday morning and again early on Monday morning. The air mass will modify and temperatures will likely rise above normal for Wednesday and Thursday.

A weak cold front is forecast to approach from the northwest on Thursday night and it should pass through our region early on Friday. The feature is expected to have only limited moisture associated with it. Temperatures on Friday should return near normal.

AVIATION /00Z SATURDAY THROUGH WEDNESDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Tonight . VFR conditions expected with mid level clouds dissipating by 06Z. Winds may start North Northwesterly, but should eventually shift to North Northeasterly. Speeds of 10 to 15 kt should decrease to near or below 10 kt by 06Z. High confidence.

Saturday . VFR expected with clear skies much of the day. Northeasterly winds 5 to 15 knots. High confidence.

Outlook .

Sunday . VFR. Northeast wind 10 to 15 knots with gusts around 20 knots. High confidence.

Monday . VFR. Northeast wind around 10 knots. High confidence.

Tuesday . VFR. Northwest wind around 10 knots. High confidence.

Wednesday . VFR. West wind 5 to 10 knots. High confidence.

MARINE. Fair weather tonight and Saturday. SCA flags will continue with gusts around 25 knots and enhanced seas on the ocean. It's possible that the SCA flag for the northern Del Bay could be taken down this evening if wind gusts decrease later on.

Outlook .

Saturday night and Sunday . A Small Craft Advisory is in effect for our ocean waters and for Delaware Bay. A northeast wind is forecast to be 15 to 25 knots will gusts around 30 knots. Waves on our ocean waters will likely build to 6 to 10 feet.

Sunday night and Monday . The Small Craft Advisory will likely need to be extended to cover this period as the gusty northeast wind and rough seas continue.

Monday night through Wednesday . While wind speeds are expected to fall below 25 knots, wave heights on our ocean waters should be slow to drop below 5 feet. As a result, a Small Craft Advisory may be needed for our ocean waters for most of this period, as well.

Rip currents .

There is a high risk for the development of dangerous rip currents into tonight at the Delaware Beaches. There is a moderate risk at the New Jersey Shore. A high risk is expected for both Delaware and New Jersey on Saturday due to the rough surf and strong northeast wind.

Rough surf will continue along the coasts of Delaware and New Jersey from Saturday night into Tuesday as the weather pattern over the western North Atlantic remains active. As a result, there will be an enhanced risk for the development of dangerous rip currents through the period.

TIDES/COASTAL FLOODING. The new moon occurred on Thursday and higher than normal astronomical tides will continue for the next couple of days.

For the Atlantic coast: A continued north to northeast flow will increase the surge along the Atlantic coast. With astronomical tides running higher than normal due to the recent new moon, we are expecting minor flooding to occur with tonight's and especially Saturday mornings high tides. Can't rule out a few spots mainly south of Barnegat Bay getting close to or just touching Moderate flooding levels with the Saturday morning high tide but confidence remains too low to issue any Coastal Flood Watch or Warning products at this time.

For the Delaware Bay and tidal Delaware River: A north to northeast wind is not likely to increase the potential for tidal flooding along the Delaware River. However, the winds will be blowing across the Delaware Bay and this will increase the risk along the southern bay shores of Delaware, where we expect minor tidal flooding to occur with tonight's and Saturday morning's high tides.

For the Northeast Chesapeake Bay: We do no expect any coastal flooding to occur along the Chesapeake Bay as the north to northeast wind direction is not ideal for tidal flooding.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . Coastal Flood Advisory until 2 PM EDT Saturday for NJZ013-014- 020-022>027. Coastal Flood Advisory from 8 AM to 2 PM EDT Saturday for NJZ012. DE . Coastal Flood Advisory until 2 PM EDT Saturday for DEZ002>004. High Rip Current Risk until midnight EDT tonight for DEZ004. MD . None. MARINE . Small Craft Advisory until 6 PM EDT Sunday for ANZ430-431- 450>455.

Synopsis . Iovino Near Term . Johnson/O'Hara Short Term . O'Hara Long Term . Iovino Aviation . Iovino/Johnson/O'Hara Marine . Iovino/O'Hara Tides/Coastal Flooding . WFO PHI


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44062 - Gooses Reef, MD 12 mi35 min NE 12 G 14 71°F 75°F
TPLM2 - Thomas Point, MD 14 mi53 min N 17 G 19 71°F 75°F1016.8 hPa (+1.6)53°F
CA2 - 8571892 - Cambridge, MD 16 mi53 min N 5.1 G 6 70°F 74°F1015.8 hPa (+1.9)
CPVM2 20 mi53 min 72°F 54°F
APAM2 - 8575512 - Annapolis, MD 21 mi53 min NNW 4.1 G 6 69°F 76°F1015.8 hPa (+1.6)
BSLM2 - Chesapeake Bay, MD 21 mi143 min N 1.9 1015 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 22 mi53 min NNE 9.9 G 16 1016.4 hPa (+1.6)
SLIM2 - 8577330 - Solomons Island, MD 28 mi53 min N 6 G 9.9 70°F 76°F1015.7 hPa (+1.5)
TCBM2 - 8573364 - Tolchester Beach, MD 35 mi53 min N 13 G 18 71°F 74°F1016.6 hPa (+1.8)
BISM2 - 8571421 - Bishops Head, MD 37 mi53 min N 8 G 15 69°F 73°F1015.5 hPa (+2.2)
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 37 mi53 min N 8 G 9.9 71°F 1016.4 hPa (+1.9)
FSNM2 37 mi53 min N 9.9 G 12 71°F 1016.2 hPa (+1.9)
WASD2 - 8594900 - Washington, DC 39 mi53 min N 5.1 G 8 72°F 75°F1016.7 hPa (+1.8)
BLTM2 - 8574680 - Baltimore, MD 41 mi53 min NE 8.9 G 12 71°F 76°F1016.1 hPa (+1.9)
PPTM2 - 8578240 - Piney Point, MD 41 mi53 min NNE 5.1 G 7
NCDV2 47 mi53 min NNW 4.1 G 5.1 68°F 75°F1015.6 hPa (+1.6)

Wind History for Cambridge, MD
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Easton / Newman Field, MD15 mi63 minN 610.00 miClear68°F59°F73%1017.3 hPa
Bay Bridge Field, MD18 mi58 minNNE 87.00 miPartly Cloudy with Haze70°F53°F57%1016.3 hPa
Cambridge-Dorchester Airport, MD19 mi58 minN 610.00 miPartly Cloudy68°F59°F73%1015.9 hPa
Annapolis, United States Naval Academy, MD20 mi59 minN 510.00 miPartly Cloudy70°F57°F66%1016.3 hPa

Link to 5 minute data for KESN

Wind History from ESN (wind in knots)
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Last 24hrCalmCalmCalmCalmSE5E3CalmCalmCalmN3N3N5N4NE8--N7N5N9N10
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1 day agoCalmCalmSE4SE3SE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW3CalmCalmS6CalmS3Calm
2 days agoNE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE3S4CalmSW4S6S3SW4Calm

Tide / Current Tables for Avalon, Dogwood Harbor, Maryland
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Avalon
Click for Map
Fri -- 04:43 AM EDT     2.10 feet High Tide
Fri -- 06:49 AM EDT     Sunrise
Fri -- 08:01 AM EDT     Moonrise
Fri -- 11:30 AM EDT     0.39 feet Low Tide
Fri -- 05:14 PM EDT     2.11 feet High Tide
Fri -- 07:07 PM EDT     Sunset
Fri -- 08:16 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.91.31.822.11.91.61.30.90.60.40.40.61.11.51.92.121.81.51.10.80.6

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Fri -- 12:16 AM EDT     -0.93 knots Max Ebb
Fri -- 03:21 AM EDT     0.00 knots Slack
Fri -- 06:26 AM EDT     0.92 knots Max Flood
Fri -- 06:50 AM EDT     Sunrise
Fri -- 08:01 AM EDT     Moonrise
Fri -- 09:29 AM EDT     -0.00 knots Slack
Fri -- 12:34 PM EDT     -0.94 knots Max Ebb
Fri -- 03:37 PM EDT     0.00 knots Slack
Fri -- 06:48 PM EDT     1.02 knots Max Flood
Fri -- 07:08 PM EDT     Sunset
Fri -- 08:16 PM EDT     Moonset
Fri -- 09:58 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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-0.9-0.9-0.6-0.20.30.70.90.90.60.2-0.2-0.7-0.9-0.9-0.7-0.30.20.60.910.90.5-0-0.5

Weather Map
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wmap_A
GEOS 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
Ground Weather Radar Station Dover AFB, DE
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