Monday, May10, 2021
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Marine Weather and Tides
Wilmington, DE

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 5:50AMSunset 8:06PM Monday May 10, 2021 5:36 PM EDT (21:36 UTC) Moonrise 4:29AMMoonset 6:09PM Illumination 1% Phase: New Moon; Moon at 29 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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ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 406 Pm Edt Mon May 10 2021
Tonight..NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Waves 2 ft or less.
Tue..N winds 10 to 15 kt with gusts up to 20 kt, becoming nw 5 to 10 kt in the late morning and early afternoon, then becoming W 10 to 15 kt late. Waves 2 ft or less.
Tue night..NW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Waves 2 ft or less.
Wed..NW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 ft or less.
Wed night..NW winds 5 to 10 kt. Waves 2 ft or less.
Thu..NW winds 5 to 10 kt. Waves 2 ft or less.
Thu night..W winds around 5 kt. Waves 2 ft or less.
Fri..NW winds around 5 kt, becoming S in the afternoon. Waves 2 ft or less.
Fri night..S winds around 5 kt, becoming W after midnight. Waves 2 ft or less.
Sat..NW winds around 5 kt, becoming S in the afternoon. Waves 2 ft or less.
Sat night..SW winds around 5 kt. Waves 2 ft or less.
ANZ400 406 Pm Edt Mon May 10 2021
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. Strong high pressure will build into the central united states and will largely control the weather for most of the week. A weak trough will pass through the region on Tuesday, and then a couple of stronger fronts may impact the area towards the weekend as upper level low pressure moves over the northeast.


7 Day Forecast for Marine Location Near Wilmington, DE
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location: 39.73, -75.56     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 101916 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 316 PM EDT Mon May 10 2021

SYNOPSIS. Strong high pressure will build into the central United States and will largely control the weather for most of the week. A weak trough will pass through the region on Tuesday, and then a couple of stronger fronts may impact the area towards the weekend as upper level low pressure moves over the Northeast.

NEAR TERM /THROUGH TUESDAY/. Low pressure and it's associated cold front continue to pull away to the east however there is still a fair bit of moisture lingering in the lower levels. As a result, the remainder of the day should continue to see breezy and cool conditions with NW flow under a considerable amount of stratocu for much of the region. However the cloud cover should diminish somewhat towards the late afternoon.

The NW flow Cold advection regime continues for tonight and as a result it will be quiet but cool. Some lingering clouds and the continuing breeze should prevent the temps for bottoming out and leading to widespread frost across the Poconos although there may be a few areas that see some patchy frost.

Heading into Tuesday the quiet weather continues under northwest winds. We had initially been thinking it was going to be quite the breezy day however guidance has been trending towards the boundary layer not mixing quite a deep and thus anticipate winds maxing out around 20-25 kts. With mostly zonal flow and the lack of a different airmass temps will again be in the 50s across the Poconos and 60s across the rest of the region. Late in the afternoon a shortwave rounds the base of an upper level trough and may bring a chance of some showers however significant precip is not expected.

SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY NIGHT/. Weak trough moves offshore Tuesday evening, and any light showers associated with it will taper off fairly quickly after sunset.

Broad surface high pressure will then encompass the Midwest, Great Lakes, and Northern and Central Plains states, and will expand as it builds to the south and east. Meanwhile, a closed 500 mb low over the Northeast moves offshore Tuesday night, and a positively tilted trough will lie across the Northeast and back into the eastern Great Lakes. Strong shortwave energy will slide through the region during the day Wednesday. Conditions will be quite dry at the surface as high pressure will largely be in control, so not expecting any precip associated with it. Surface dew points will be in the 30s and lowering through the day. Will just have some scattered to broken mid and high clouds that will dissipate Wednesday night as high pressure builds east.

Temperatures will still be on the chilly side Wednesday, generally 5-10 degree below normal, and then another chilly night Wednesday night.

LONG TERM /THURSDAY THROUGH MONDAY/. Dry conditions for most of the week with temperatures warming back to near and slightly above normal levels by the weekend.

Surface high pressure will be centered over the Ohio Valley through the end of the week. Conditions will be dry, and although temperatures will be creeping up, highs will still be a few degrees below normal. By Friday, an upper trough will approach from the west, and will set itself up over the Northeast and Mid-Atlantic through the weekend. Several strong shortwaves will dive into the base of the trough, and a few weak frontal boundaries will develop as well with each passage.

Based on latest model trends, it does not appear that there will be a washout from Friday through Sunday, but there should be at least a slight chance for showers, mainly during the afternoon.

By Monday, a stronger area of low pressure will gear up to take a run at the Northeast and Mid-Atlantic. However, there are some timing and placement differences among the models, so will see how trends develop over the next several days.

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

This afternoon . VFR with a scattered to broken stratocu deck around 4000 ft. Northwest wind around 10 knots with gusts of 15 to 20 knots at times. High confidence.

Tonight . VFR. Northwest winds generally around 5 knots or less. High confidence.

Tuesday . VFR. Northwest winds around 10-15 knots with gusts 20 to 25 knots. High confidence.

Outlook .

Tuesday night . VFR. W-NW winds less than 10 kt. High confidence.

Wednesday . VFR. NW winds 10-15 kt with gusts up to 20 kt. Moderate confidence.

Thursday . VFR. Light NW winds, becoming SE with sea breezes that may approach the I-95 corridor terminals. Moderate confidence.

Friday through Saturday . VFR. Isolated afternoon -SHRA. LGT/VRB winds. Moderate confidence.

MARINE. An SCA remains in effect for the ocean waters due to a long period southerly swell and fetch which with seas still around 5 feet. However seas will start to wane this afternoon and so the SCA should come down later this afternoon once seas drop towards 3-5 feet under the offshore flow.

Sub SCA conditions expected from late this afternoon through Tuesday.

Outlook .

Tuesday night through Wednesday . A period of SCA winds possible late Tuesday night through Wednesday morning.

Thursday through Saturday . A prolonged period of sub-SCA conditions.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . Small Craft Advisory until 6 PM EDT this evening for ANZ450>455.

Synopsis . MPS Near Term . Fitzsimmons Short Term . MPS Long Term . MPS Aviation . Fitzsimmons/MPS Marine . Fitzsimmons/MPS


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MRCP1 - 8540433 - Marcus Hook, PA 9 mi67 min 61°F 62°F1013.3 hPa
DELD1 - 8551762 - Delaware City, DE 10 mi67 min NNW 7 G 12 60°F 1013.7 hPa
RDYD1 - 8551910 - Reedy Point, DE 12 mi67 min 60°F 63°F1013.2 hPa
CHCM2 - 8573927 - Chesapeake City, MD 19 mi67 min NW 9.9 G 12 60°F 63°F1014.1 hPa
PHBP1 - 8545240 - Philadelphia, PA 26 mi67 min 62°F 61°F1013.4 hPa
BDSP1 31 mi67 min 61°F 60°F1013.6 hPa
SJSN4 - 8537121 - Ship John Shoal, NJ 31 mi67 min NNW 12 G 14 59°F 60°F1014.3 hPa
BDRN4 - 8539094 - Burlington, Delaware River, NJ 44 mi67 min N 5.1 G 13 59°F 57°F1013.2 hPa

Wind History for Delaware City, DE
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wilmington, New Castle County Airport, DE4 mi46 minWNW 1310.00 miA Few Clouds63°F42°F47%1014.1 hPa
Philadelphia, Philadelphia International Airport, PA20 mi43 minNW 13 G 1710.00 miMostly Cloudy62°F41°F46%1013.9 hPa
Chester County Airport, PA24 mi42 minNW 910.00 miA Few Clouds59°F41°F51%1014.6 hPa

Link to 5 minute data for KILG

Wind History from ILG (wind in knots)
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Last 24hrSE9SE9E7SE10SE9E7NE6NE5CalmNW9CalmNW16
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1 day agoW8NW10NW12NW6W8W7W4W3NW5W8W6NW5NW5W3NW3W6W3SW5SW7SW8SW6S4SE5E10
2 days agoS9W11W11W11W8NW5NW6W6W6W7W6W7W6W7W8W11W12
G18
W15W9W9W75W10NW15

Tide / Current Tables for Millside, RR. bridge, Delaware
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Millside
Click for Map
Mon -- 12:17 AM EDT     5.99 feet High Tide
Mon -- 05:28 AM EDT     Moonrise
Mon -- 05:52 AM EDT     Sunrise
Mon -- 07:10 AM EDT     0.28 feet Low Tide
Mon -- 12:39 PM EDT     5.50 feet High Tide
Mon -- 07:09 PM EDT     Moonset
Mon -- 07:18 PM EDT     0.45 feet Low Tide
Mon -- 08:05 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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65.853.92.81.80.80.30.61.83.14.45.35.44.83.82.71.810.50.71.83.34.6

Tide / Current Tables for Chesapeake and Delaware Canal, Maryland/Delaware Current
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Chesapeake and Delaware Canal
Click for Map
Mon -- 12:34 AM EDT     -2.13 knots Max Ebb
Mon -- 04:21 AM EDT     0.02 knots Slack
Mon -- 05:29 AM EDT     Moonrise
Mon -- 05:53 AM EDT     Sunrise
Mon -- 07:07 AM EDT     2.21 knots Max Flood
Mon -- 10:43 AM EDT     -0.08 knots Slack
Mon -- 01:08 PM EDT     -1.64 knots Max Ebb
Mon -- 04:31 PM EDT     0.02 knots Slack
Mon -- 07:10 PM EDT     Moonset
Mon -- 07:11 PM EDT     1.90 knots Max Flood
Mon -- 08:06 PM EDT     Sunset
Mon -- 09:44 PM EDT     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-2.1-2.1-1.9-1.5-0.91.21.92.22.11.71.1-0.7-1.4-1.6-1.5-1.3-0.80.91.61.91.81.2-0.7-1.5

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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