Thursday, September16, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Choptank, MD

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
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 6:45AMSunset 7:12PM Thursday September 16, 2021 6:21 PM EDT (22:21 UTC) Moonrise 4:09PMMoonset 12:42AM Illumination 78% Phase: Waxing Gibbous; Moon at 10 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
ANZ541 Choptank River To Cambridge Md And The Little Choptank River- 439 Pm Edt Thu Sep 16 2021
Rest of this afternoon..E winds 5 kt. Waves less than 1 ft. Numerous showers and scattered tstms. Vsby 1 nm or less.
Tonight..E winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. Vsby 1 nm or less.
Fri..NE winds 10 kt. Waves 1 ft. Scattered showers. Vsby 1 to 3 nm.
Fri night..NE winds 5 to 10 kt. Waves 1 ft. Scattered showers.
Sat..N winds 5 to 10 kt. Waves 1 ft.
Sat night..NW winds 5 kt. Waves less than 1 ft.
Sun..NE winds 5 to 10 kt...becoming E after midnight. Waves 1 ft.
Mon..SE winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 439 Pm Edt Thu Sep 16 2021
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will remain anchored offshore through the weekend. Low pressure developing offshore of the carolinas is expected to track northward offshore through the end of the week, then another area of high pressure will build in from the west. Small craft advisories may be needed for middle portions of the chesapeake bay and lower tidal potomac river on Friday.


7 Day Forecast for Marine Location Near Choptank, MD
   Hourly   EDIT   Help
location: 38.68, -75.95     debug


Area Discussion for - Philadelphia/Mount Holly, PA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KPHI 161949 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 349 PM EDT Thu Sep 16 2021

SYNOPSIS. The cold front that moved into our region last night has stalled across the area and will dissipate through Friday. Low pressure centered off the Carolina coast is forecast to move slowly to the north through Friday before intensifying and accelerating northeastward over the weekend. A cold front approaching from the northwest is expected to pass through our region on Saturday night, followed by high pressure for the period from Sunday through Wednesday.

NEAR TERM /THROUGH FRIDAY/. A diffuse and weakening frontal boundary remains over Delmarva into southern NJ with high pressure located over New England and low pressure east of the Carolinas. This set up has resulted in mainly cloudy skies due to low strato cu with the development of some showers and thunderstorms in the vicinity of the front over portions of Delmarva into southern NJ. PWATs are just under 2 inches in this area with fairly weak flow aloft so this should continue to result in some of these storms bringing heavy rain amounts with localized flash flooding possible. The good news is this is within the part of our forecast area where flash flood guidance is generally a bit higher.

Heading into this evening, showers/storms should diminish after sunset but a continuing easterly flow will result in mainly cloudy skies with cloud bases lowering. It looks like more of a stratus setup but there could be some areas of fog as well. Also, as weak disturbances aloft continue to move through in the weak SW flow this combined with the moist onshore flow will result a continuing chance for some showers and drizzle. Finally, as the low off the coast to our south starts to move north there may be some additional moisture and showers eventually drawn in from this feature as well.

For Friday, no big changes expected. Low pressure will move north and east and should stay east of our coastal waters while starting to strengthen. In fact the NHC is forecasting a 70 percent chance of tropical cyclone development with this feature by early Saturday. But even if this happens impacts for the mid Atlantic should be limited since it will be far enough east. Otherwise, it will stay mainly cloudy though for Friday with some continuing scattered showers around due to the persistent E/NE flow and a weak upper level trough moving through. It shouldn't be as unstable though so the thunderstorm and associated excessive rainfall threat looks more limited compared to today.Highs Friday will be mainly in the 70s to around 80 (warmest south) with it staying fairly humid as well.

SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY NIGHT/. Surface low pressure is forecast to be located off the Mid-Atlantic coast late Friday and will continue drifting north to northeastward away from land. The NHC currently has this feature with a 70% chance of becoming a tropical cyclone by sometime early Saturday.

As the circulation pulls away Friday night, the northeast wind will become more north and northwesterly allowing additional dry air to filter into the region and skies will become partly cloudy. Lows should be mostly in the 60s.

Scattered clouds are forecast for Saturday. Temperatures will likely be warm with highs mainly in the lower 80s. Conditions are expected to remain somewhat humid with dew point readings still in the middle and upper 60s. There is a low or slight chance of showers in the afternoon in our northwestern counties, ahead of an approaching cold front.

A mid level short wave trough is forecast to pass over eastern New York and New England on Saturday night and it should pull a cold front through our region at that time. There is anticipated to be only limited moisture associated with the features, so we are not expecting much of a chance of precipitation at that time. Low temperatures on Saturday night will likely be in the 60s with dew point values beginning to lower.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. Surface high pressure is expected to extend from the Great Lakes up into Quebec on Sunday morning. The center of the air mass is forecast to slide east southeastward, stalling over the coastal waters of New England on Monday and Tuesday, before moving farther out to sea on Wednesday.

The high will likely bring dry weather and slightly above normal temperatures to our region for the period from Sunday through Wednesday.

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

Through this afternoon . Strato Cu with cigs hovering between low VFR and high end MVFR. There will also be some showers and thunderstorms around mainly near and south of PHL and these could bring locally reduced visbys to IFR. Winds E/NE 5 to 10 knots with a few gusts up to 15 knots possible.

Tonight . Any showers/storms quickly ending early this evening but expect cigs to lower to MVFR and then IFR by late evening through tonight. Winds generally east 5 to 8 knots. Moderate confidence.

Friday . IFR cigs to start the day with cigs lifting to MVFR by early afternoon. There will also be some showers around. E/NE winds around 5 to 10 knots. Moderate confidence.

Outlook .

Saturday . Mainly VFR. North to northwest wind 5 to 10 knots. High confidence.

Sunday . Mainly VFR. North wind around 10 knots. High confidence.

Monday . Mainly VFR. Northeast to southeast wind 5 to 10 knots. High confidence.

MARINE. Seas will start to ramp up through tonight and should reach 5-6 ft by early Friday morning. Seas will remain elevated through Friday and beyond with east/northeast wind gusts to around 20 knots or so also possible for Friday. Over the Delaware Bay, conditions should remain below SCA levels through Friday.

Outlook .

Friday night through Saturday . A Small Craft Advisory will be in effect and has been extended through Saturday evening for our ocean waters for wave heights of 4 to 6 feet due to an offshore low. Northeast wind 15 to 20 knots, becoming north and diminishing into Saturday.

Sunday and Monday . No marine headlines are anticipated. North winds becoming east Monday around 5-15 kts. Seas 2 to 4 feet.

Rip Currents .

A moderate risk for the formation of dangerous rip currents is expected today. Winds are expected to shift to southeasterly and eventually easterly, increasing in speed to 10 to 15 MPH by the afternoon. A medium period southeast to east swell is likely and breaking waves should be 1 to 2 feet.

An elevated rip risk is expected to continue on Friday as onshore flow continues. Winds will shift to northeasterly around 10 to 20 mph. At this point we are expecting a moderate risk for rip currents, but will have to monitor this closely as if the forecast for either waves or wind speeds increases, this could be a high risk.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . Small Craft Advisory from midnight tonight to 8 PM EDT Saturday for ANZ450>455.

Synopsis . Iovino/Staarmann Near Term . Fitzsimmons Short Term . Iovino/Staarmann Long Term . Iovino/Staarmann Aviation . Fitzsimmons/Iovino Marine . Fitzsimmons/Iovino/Staarmann


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
CA2 - 8571892 - Cambridge, MD 10 mi51 min E 5.1 G 6 73°F 78°F1019.4 hPa
44062 - Gooses Reef, MD 26 mi39 min E 9.7 G 12 74°F 78°F1020.6 hPa
TPLM2 - Thomas Point, MD 30 mi81 min ENE 2.9 G 4.1 76°F 78°F1020.4 hPa (-0.5)73°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 30 mi51 min E 4.1 G 5.1 76°F 1019.2 hPa
CPVM2 32 mi51 min 77°F 71°F
BISM2 - 8571421 - Bishops Head, MD 32 mi51 min ENE 6 G 7 76°F 80°F1019.3 hPa
44063 - Annapolis 33 mi39 min ENE 3.9 G 5.8 75°F 79°F1020.6 hPa
APAM2 - 8575512 - Annapolis, MD 35 mi51 min NE 1.9 G 4.1 78°F 81°F1019.4 hPa
SLIM2 - 8577330 - Solomons Island, MD 36 mi51 min ENE 4.1 G 5.1 76°F 79°F1018.9 hPa
DRSD1 - Delaware Reserve, DE 39 mi51 min ESE 4.1 76°F 1021 hPa76°F
TCBM2 - 8573364 - Tolchester Beach, MD 40 mi51 min NNE 7 G 9.9 69°F 78°F1020.6 hPa
BSLM2 - Chesapeake Bay, MD 41 mi51 min SE 1 76°F 1019 hPa71°F
LWSD1 - 8557380 - Lewes, DE 45 mi51 min E 15 G 17 73°F 74°F1020.5 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 48 mi51 min E 18 G 21 74°F 1020 hPa
FSNM2 48 mi51 min ENE 21 G 25 74°F 1020.1 hPa
BRND1 - 8555889 - Brandywine Shoal Light, DE 49 mi51 min E 12 G 13 1021.3 hPa
PPTM2 - 8578240 - Piney Point, MD 49 mi51 min E 7 G 8.9
44042 - Potomac, MD 49 mi39 min ENE 7.8 G 9.7 77°F 80°F

Wind History for Cambridge, MD
(wind in knots)    EDIT      (on/off)   Help
7
PM
8
PM
9
PM
10
PM
11
PM
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
Last
24hr
SE12
G17
S8
G13
S7
SE5
G9
SE6
S6
G10
S7
G10
--
SE1
SE3
SE3
S3
SE2
E3
E3
NE4
NE3
NE5
NE6
SW5
G9
SW2
G5
E9
E6
NE8
1 day
ago
S6
G9
SE6
G10
SE7
G10
SE8
SE6
G9
SE6
G9
S4
S5
S5
S6
G9
S7
G10
S7
G11
S5
G8
S7
G10
S7
G10
S9
G13
S5
G10
S9
G14
S10
G14
SE13
G17
S13
G16
SE13
G19
S10
G14
SE9
G14
2 days
ago
W3
S5
SW4
--
--
S5
S5
S4
S2
E1
SE2
SE1
SE1
E3
E1
NE2
NE1
E4
S8
G13
S8
G11
SE8
G13
SE9
G12
SE9
S7

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Easton / Newman Field, MD11 mi31 minNE 610.00 miMostly Cloudy73°F72°F94%1021.3 hPa
Cambridge-Dorchester Airport, MD11 mi26 minVar 310.00 miFair73°F73°F100%1020 hPa

Link to 5 minute data for KCGE

Wind History from CGE (wind in knots)
7
PM
8
PM
9
PM
10
PM
11
PM
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
Last 24hrS12
G18
S7
G14
S7
G13
S6S6S6S7S4CalmCalmCalmCalmCalmCalmCalmCalmE5N7N65SW4N3E7E5
1 day agoS4SE5SE5SE6S7S5S4S5S4S4S4S4S5SE45S5S10S12S8
G13
S7
G14
S8
G13
S8
G15
S8
G16
S8
G13
2 days agoCalmCalmCalmCalmCalmCalmSE3CalmCalmSE3CalmCalmCalmCalmCalmCalmCalmCalm4S5
G11
65
G11
S9S7
G12

Tide / Current Tables for Choptank, Choptank River, Maryland
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Choptank
Click for Map
Thu -- 01:14 AM EDT     2.92 feet High Tide
Thu -- 01:41 AM EDT     Moonset
Thu -- 06:46 AM EDT     Sunrise
Thu -- 09:04 AM EDT     0.90 feet Low Tide
Thu -- 01:17 PM EDT     1.81 feet High Tide
Thu -- 05:09 PM EDT     Moonrise
Thu -- 07:10 PM EDT     Sunset
Thu -- 07:46 PM EDT     0.58 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
2.72.92.92.72.42.11.71.310.911.31.61.81.81.61.310.80.60.60.71.11.7

Tide / Current Tables for Dover Bridge, Choptank River, Maryland
   EDIT      (on/off)   Help   One Week of Data
Dover Bridge
Click for Map
Thu -- 01:41 AM EDT     Moonset
Thu -- 02:49 AM EDT     3.08 feet High Tide
Thu -- 06:46 AM EDT     Sunrise
Thu -- 10:09 AM EDT     0.95 feet Low Tide
Thu -- 02:52 PM EDT     1.91 feet High Tide
Thu -- 05:09 PM EDT     Moonrise
Thu -- 07:10 PM EDT     Sunset
Thu -- 08:51 PM EDT     0.61 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
2.22.733.12.92.72.31.91.51.1111.31.61.81.91.81.51.20.90.70.60.71.1

Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    EDIT
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.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Please read website Cookie, Privacy, and Disclamers by clicking HERE.