Tuesday, September22, 2020
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Marine Weather and Tides
Glasgow, DE

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 6:49AMSunset 7:00PM Tuesday September 22, 2020 5:33 PM EDT (21:33 UTC) Moonrise 11:56AMMoonset 9:42PM Illumination 31% Phase: Waxing Crescent; Moon at 6 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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ANZ530 Chesapeake Bay North Of Pooles Island- 440 Pm Edt Tue Sep 22 2020
Rest of this afternoon..NW winds 10 kt. Waves 1 ft.
Tonight..NW winds 5 to 10 kt. Waves 1 ft.
Wed..W winds 5 to 10 kt. Waves 1 ft.
Wed night..NW winds 5 to 10 kt. Waves 1 ft.
Thu..W winds 5 kt. Waves less than 1 ft.
Thu night..S winds around 5 kt. Waves 1 ft.
Fri..S winds around 5 kt. Waves 1 ft or less.
Sat..S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers.
ANZ500 440 Pm Edt Tue Sep 22 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will weaken and move south of the area through Wednesday night, then move offshore Thursday into Friday. The remnants of beta will likely pass to the south while weakening Friday into Saturday. A couple cold fronts are expected to approach from the great lakes and ohio river valley late in the weekend into early next week. Small craft advisories may be needed Friday.


7 Day Forecast for Marine Location Near Glasgow, DE
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location: 39.55, -75.73     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 221916 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 316 PM EDT Tue Sep 22 2020

SYNOPSIS. High pressure will remain near the Ohio and Tennessee Valleys through Wednesday as Tropical Cyclone Teddy moves through portions of Atlantic Canada while becoming post-tropical. High pressure then slowly drifts off the southeast coast later this week into this coming weekend. A cold front looks to move through from west to east sometime late Sunday or Monday.

NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/. High pressure remains over the Tennessee Valley and Mid- Atlantic tonight as Hurricane Teddy weakens as it moves into the Canadian Maritimes.

Gusty northwest winds will diminish later this evening with loss of diurnal heating. 850 mb temps will be rising through the overnight, so not expecting as cold of a night as it has been of late.

Lows tonight will be in the 40s to low 50s.

SHORT TERM /6 AM WEDNESDAY MORNING THROUGH 6 PM WEDNESDAY/. High pressure slowly slides off the Southeast coast on Wednesday. Incoming smoke aloft may partially obscure the sun, but overall, expecting a mostly sunny day. With WAA continuing, temperatures return to normal levels, with highs generally topping off in the mid to upper 70s, and some spots along the urban corridor may touch 80.

Mixing will be better Wednesday afternoon, so expecting west to northwest winds to increase to around 15 mph with 20-25 mph gusts.

LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/. Surface high pressure will move off the southeast coast Wednesday night through Thursday but will continue to influence the region with mostly benign weather through most of Saturday. After Saturday, moisture associated with Beta's remnants may approach from the south providing the chance of rain showers over the forecast area, especially south of the Mason- Dixon line Saturday night and Sunday. A cold front and associated upper trough look to approach from the west late Sunday or Monday providing additional chances for showers and possibly even some thunderstorms Sunday afternoon into Sunday evening. Chances for showers could last into Tuesday as a secondary cold front moves through. So all in all, becoming a bit more unsettled late in the weekend into early next week.

Temperatures are expected to remain above average through most of the period, cooling to near normal early next week.

AVIATION /19Z TUESDAY THROUGH SUNDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Through this evening . VFR. W-NW winds 10-15 kt with gusts up to 20 kt. High confidence.

Tonight . VFR. W winds less than 10 kt. High confidence.

Wednesday . VFR. W-NW winds increasing to 10-15 kt with gusts up to 20 kt in the afternoon. High confidence.

Outlook .

Wednesday night through Saturday . VFR. Winds generally south/southwest at 5 to 10 knots or less. High forecast confidence through Friday, moderate forecast confidence Saturday.

Saturday night through Sunday . Sub VFR conditions possible at times as showers and low clouds could affect the region. Low confidence.

MARINE. For the Atlantic waters, seas of 7 to 10 feet will diminish through the overnight hours, down to 4-6 feet by Wednesday morning, and then seas may subside to less than 5 feet late in the day. W-NW winds gusting to 20 kt through this evening, then diminishing to around 15 kt tonight. Gusts to 20 kt possible once again on Wednesday.

For Delaware Bay, mainly sub-advisory conditions expected. Winds generally northwest 10 to 20 kt through tonight. There may be some channeling effects in the lower mouth of the bay, which may produce gusts approaching advisory levels. For now, confidence is too low for an advisory.

Outlook .

Sub-SCA conditions are expected Wednesday night through the weekend with fair weather for most of this period. The next chance of showers arrives late Saturday or on Sunday.

Rip currents .

The rip-current risk remains high through Wednesday, as very long-period swell with breaking waves 5 to 8 feet continues today. Swell should diminish somewhat on Wednesday, but will likely remain well above 3 feet with long periods continuing. With winds becoming offshore today, dangerous breaking waves of higher frequency will likely occur through this afternoon. Consequently, high surf will remain a significant threat. The High Surf Advisory remains in effect through early this evening.

TIDES/COASTAL FLOODING. Some lingering spotty minor flooding remains possible in the coastal counties of New Jersey and Delaware with the afternoon high tides today and Wednesday Wednesday. However, it is not expected to be widespread enough to warrant an advisory.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . High Rip Current Risk through Wednesday evening for NJZ014- 024>026. High Surf Advisory until 7 PM EDT this evening for NJZ014- 024>026. DE . High Rip Current Risk through Wednesday evening for DEZ004. High Surf Advisory until 7 PM EDT this evening for DEZ004. MD . None. MARINE . Small Craft Advisory until 8 PM EDT Wednesday for ANZ450>455.

Synopsis . Fitzsimmons Near Term . MPS Short Term . MPS Long Term . Fitzsimmons/Miketta Aviation . Fitzsimmons/MPS Marine . Fitzsimmons/MPS Tides/Coastal Flooding . WFO PHI


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHCM2 - 8573927 - Chesapeake City, MD 5 mi45 min NW 7 G 11 70°F
DELD1 - 8551762 - Delaware City, DE 8 mi45 min WNW 8.9 G 11 71°F 62°F1015.2 hPa
RDYD1 - 8551910 - Reedy Point, DE 8 mi45 min 70°F
MRCP1 - 8540433 - Marcus Hook, PA 24 mi45 min 71°F
SJSN4 - 8537121 - Ship John Shoal, NJ 25 mi51 min 69°F 1016 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 36 mi45 min WNW 4.1 G 6
PHBP1 - 8545240 - Philadelphia, PA 41 mi45 min 73°F 71°F1013.9 hPa
BDSP1 46 mi45 min 74°F 1014.5 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 48 mi45 min W 11 G 13 71°F 1016.2 hPa
FSNM2 48 mi45 min W 13 G 17 70°F 1016 hPa
BLTM2 - 8574680 - Baltimore, MD 49 mi45 min NW 6 G 12 72°F 74°F1015.9 hPa

Wind History for Chesapeake City, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wilmington, New Castle County Airport, DE11 mi42 minWNW 1010.00 miFair72°F39°F30%1015.5 hPa
Phillips Army Air Field / Aberdeen, MD24 mi35 minNW 57.00 miClear72°F37°F29%1015.9 hPa

Link to 5 minute data for KILG

Wind History from ILG (wind in knots)
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Last 24hrNE8E3CalmCalmCalmNW4NW5NW5NW5NW4NW7NW4NW5NW5NW5NW4NW8NW9
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1 day agoN8NE8NE5NE5NE3NE3NW4N5NW5N5N6N6N7N6N7N7NE10E13
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2 days agoN9N7N6N4NW3NW3NW4NW4N5N5N5N6N6N7N8N9NE10NE10E13E10NE9
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G16
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Tide / Current Tables for Summit Bridge, Chesapeake and Delaware Canal, Delaware
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Summit Bridge
Click for Map
Tue -- 03:02 AM EDT     3.80 feet High Tide
Tue -- 06:51 AM EDT     Sunrise
Tue -- 09:27 AM EDT     0.13 feet Low Tide
Tue -- 12:56 PM EDT     Moonrise
Tue -- 03:29 PM EDT     4.17 feet High Tide
Tue -- 06:59 PM EDT     Sunset
Tue -- 10:14 PM EDT     0.28 feet Low Tide
Tue -- 10:41 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.133.63.83.52.81.91.20.60.20.20.9233.74.14.13.62.821.30.70.30.5

Tide / Current Tables for Chesapeake and Delaware Canal, Maryland/Delaware Current
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Chesapeake and Delaware Canal
Click for Map
Tue -- 02:59 AM EDT     -0.08 knots Slack
Tue -- 05:22 AM EDT     -1.57 knots Max Ebb
Tue -- 06:51 AM EDT     Sunrise
Tue -- 08:03 AM EDT     0.06 knots Slack
Tue -- 11:37 AM EDT     1.98 knots Max Flood
Tue -- 12:56 PM EDT     Moonrise
Tue -- 02:02 PM EDT     -0.01 knots Slack
Tue -- 05:41 PM EDT     -2.33 knots Max Ebb
Tue -- 06:59 PM EDT     Sunset
Tue -- 09:37 PM EDT     0.09 knots Slack
Tue -- 10:42 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.21.91.3-0.1-1.2-1.5-1.5-1.1-0.311.51.91.91.50.3-1.4-2-2.3-2.3-2.1-1.7-1.10.91.7

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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