Saturday, July11, 2020
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Marine Weather and Tides
Madison, MD

Version 3.4
NOTICE
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 5:47AMSunset 8:32PM Saturday July 11, 2020 4:44 PM EDT (20:44 UTC) Moonrise 11:35PMMoonset 11:04AM Illumination 61% Phase: Waning Gibbous; Moon at 21 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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ANZ533 Chesapeake Bay From North Beach To Drum Point- 437 Pm Edt Sat Jul 11 2020
Rest of this afternoon..SW winds 10 kt. Waves 1 ft. A slight chance of showers and tstms.
Tonight..W winds 5 to 10 kt. Waves 1 ft.
Sun..S winds 5 to 10 kt. Waves 1 ft.
Sun night..S winds 5 to 10 kt. Waves 1 ft.
Mon..SW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms.
Mon night..W winds 5 to 10 kt. Waves 1 ft.
Tue..NE winds 5 to 10 kt. Waves 1 ft.
Wed..SE winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 437 Pm Edt Sat Jul 11 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front will stall near the waters throughout the weekend. The front will push eastward into the atlantic on Monday as high pressure builds over the eastern united states through much of the work week.


7 Day Forecast for Marine Location Near Madison, MD
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location: 38.49, -76.22     debug


Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 111957 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 357 PM EDT Sat Jul 11 2020

SYNOPSIS. A weak frontal boundary will linger over the region this evening before dissipating along the coast overnight. Hot and humid conditions are expected to continue through much of next week.

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/. As of 250 PM EDT Saturday .

Latest analysis continues to show weakening sfc/coastal trough draped just inland of the Chesapeake Bay this aftn. Temperatures across the area are very warm, ranging from low 90s inland (with lower dewpoint values), to upper 80s to ~90 degrees along the coast all under mostly sunny conditions at 19z. The higher dewpoint values are resulting in heat indices ~100-103 degrees across Hampton Roads and northeast NC. This boundary has been the focus for some isolated convection thus far for communities along the Potomac River early this afternoon. HRRR (time-lagged) has handled this activity well thus far, and have leaned in its direction for the balance of the day. Remaining dry over the piedmont/west of I-95. Mainly dry too along the coast through tonight, but did allow for Isolated to widely scattered showers and embedded T-storms to develop over the next few hours over the northern neck and eastern shore and also along/south of US 17 in far SE VA/NE NC. No real concern for strong storms at this time, though with drier air pushing in from the west, potential for a rogue gusty thunderstorm or two over the northern neck over to the eastern shore cannot be ruled out entirely. Otherwise, main impact with any pulsy storms would be brief heavy rainfall through early evening.

Any showers and thunderstorms that form across the eastern portions of the area should quickly weaken/diminish with loss of daytime heating, so will advertise no PoP overnight. Partly to mostly clear and comfortable overnight, with lows in the 60s to low 70s.

SHORT TERM /6 AM SUNDAY MORNING THROUGH TUESDAY/. As of 250 PM EDT Saturday .

Broad mid/upper troughing persists over the eastern U.S. Sunday, as strong (600+ dm at h5!) upper ridging will continue across the desert southwest. The local area will be in between shortwaves on Sunday, with a dampening shortwave (pre-frontal) trough pushing north of the area later Sunday/Sunday night. This will likely result in another hot and mostly sunny/dry day across the region. Will maintain a slight chance PoP across the northwestern third of the area (west of the Bay) after 4 pm Sun aftn into Sunday night, in association with the trough, with another slight chance area along and north of the Albemarle Sound in association with some isolated sea-breeze induced late day showers and storms Sunday aftn. Highs on Sunday will be in the low to mid 90s.

Weak sfc cold front will approach the area from the west late Sunday night and Monday, but with weak forcing, expect any convection will slow/weaken as it loses its forward momentum. That said, CAMs do show potential for a narrow line of showers/storms pushing into the area tomorrow evening, again with convection again likely to weaken before reaching I-95 corridor. Will maintain a chance PoP in the west, tapering to slight chance I-95 corridor.

There will likely be a lull in the precip late Sunday night into the day on Monday as the weak front slowly crosses the area. High temperatures will be in the low 90s Monday afternoon. Expect weakening front will again be the focus for isolated to widely scattered convection as it pushes across Hampton Roads/eastern shore/NE NC Monday aftn. Pops are accordingly around 30-50% (mainly east of I-95) for Monday afternoon into Monday night. Low temperatures Tuesday morning will range from the mid 60s across the Piedmont to mid 70s near the coast.

Front will be along or just off the coast Tuesday, with precipitation being even more spotty in nature given warming aloft and lower PW values. No airmass change post-frontal, with deeper mixing allowing for an even warmer afternoon Tuesday. Highs in the low to mid 90s.

LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/. As of 355 PM EDT Saturday .

Typical mid-July conditions will prevail across the area during the extended period. Very warm or hot conditions expected Wed through Sat. Rather humid Wed and Thu, and very humid conditions Fri and Sat. Sfc high pressure will be centered off the Mid Atlc coast through the period, providing an E or SE flow on Wed, SE or S flow on Thu, then S or SW flow on Fri and Sat. Only a slight chance of mainly aftn/early evening showers/tstms Wed and Thu, and mainly inland/Piedmont. Better aftn/evening chances (PoPs 20-40%) for Fri and Sat, due to the combination of increased low level moisture and shortwave energy moving through the region.

High temps will generally range from the upper 80s to lower 90s, some mid 90s likely in some places. Lows will range from the upper 60s to mid 70s through the period. Heat indices will be the highest on Fri and Sat, between 100 to 105 degrees.

AVIATION /20Z SATURDAY THROUGH THURSDAY/. As of 135 PM EDT Saturday .

Mainly VFR conditions across area terminals expected to persist through the 18z TAF period. Isolated showers and thunderstorms are expected to re-develop by late afternoon across southeast VA and northeast NC, with the highest chances between ORF/ECG. Have mentioned showers in the vicinity of KECG terminal, but have held off mention for now at ORF. Any convection over or near a terminal may result in brief flight restrictions. Winds SW 10 kts or less, becoming light and variable overnight/early Sun.

OUTLOOK . Mainly VFR conditions continue for the end of the weekend into early next week, with just scattered late day and evening convection along the coast which may result in brief flight restrictions.

MARINE. As of 320 PM EDT Saturday .

A coastal trough is moving east over the waters this afternoon and will continue to move slowly east tonight. A weak frontal boundary associated with the trough will move through this evening. As a result, SSW winds 10-15kt for the Bay/rivers/Sound and around 15 kt for the ocean will become W after midnight in the Ches Bay/ northern coastal waters before becoming NW and light (~5 kt) overnight. High pressure develops near/over the waters tomorrow with light and variable winds before moving offshore and will be replaced by SSE winds 10 to 15 kts late tomorrow afternoon/evening. Winds become SSW tomorrow night through Monday. Models continue to show a cold front pushing through across the coast Monday night into early Tuesday. The wind shifts to NW behind this front with sub-SCA conditions expected at this time. High pressure then builds into the area later Tuesday into Wednesday.

Seas are expected to range from 2-4 ft S to 3-4 ft N this afternoon, becoming 3-4 ft everywhere tonight through Monday. Seas will then decrease to 2-3 ft for the southern coastal waters while remaining 3- 4 ft over the northern coastal waters on Monday night. Waves 1-2 ft in the Ches Bay.

AKQ WATCHES/WARNINGS/ADVISORIES. MD . None. NC . None. VA . None. MARINE . None.

SYNOPSIS . MAM NEAR TERM . MAM SHORT TERM . CP/MAM LONG TERM . TMG AVIATION . CP/MAM MARINE . RMM


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CA2 - 8571892 - Cambridge, MD 10 mi56 min NNW 8 G 9.9
44062 - Gooses Reef, MD 11 mi38 min NE 5.8 G 5.8 83°F 84°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 11 mi62 min SE 6 G 6 1006.3 hPa
SLIM2 - 8577330 - Solomons Island, MD 17 mi56 min ESE 7 G 7
BISM2 - 8571421 - Bishops Head, MD 21 mi56 min W 5.1 G 7 85°F 86°F1005.9 hPa
PPTM2 - 8578240 - Piney Point, MD 30 mi56 min N 1.9 G 4.1
TPLM2 - Thomas Point, MD 30 mi44 min SSE 12 G 13 81°F 83°F1006.3 hPa (-1.5)76°F
BSLM2 - Chesapeake Bay, MD 33 mi134 min SW 5.1 1006 hPa
CPVM2 36 mi56 min 83°F 75°F
APAM2 - 8575512 - Annapolis, MD 37 mi56 min E 4.1 G 5.1 85°F 84°F1004.8 hPa
LWTV2 - 8635750 - Lewisetta, VA 37 mi56 min NE 2.9 G 4.1 86°F 82°F1006 hPa
NCDV2 45 mi56 min SW 5.1 G 5.1

Wind History for Cambridge, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cambridge-Dorchester Airport, MD11 mi49 minVar 610.00 miA Few Clouds90°F69°F52%1005.8 hPa
Patuxent River, Naval Air Station, MD17 mi52 minSE 710.00 miMostly Cloudy86°F75°F70%1005.8 hPa
St Marys County Airport, MD21 mi49 minWSW 610.00 miPartly Cloudy88°F68°F52%1006.4 hPa
Easton / Newman Field, MD23 mi54 minWSW 610.00 miMostly Cloudy88°F73°F62%1007.1 hPa

Link to 5 minute data for KCGE

Wind History from CGE (wind in knots)
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4SW4CalmCalmS4SE3SE5S5SW6Calm----S434
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2 days agoS64S4SE4CalmCalmSE5SE4E3NE3E44E3SE4E4E6E7NE8N6E7
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Tide / Current Tables for Woolford, Church Creek, Little Choptank River, Maryland
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Woolford
Click for Map
Sat -- 12:09 AM EDT     Moonrise
Sat -- 02:56 AM EDT     0.89 feet Low Tide
Sat -- 05:50 AM EDT     Sunrise
Sat -- 08:30 AM EDT     1.94 feet High Tide
Sat -- 12:04 PM EDT     Moonset
Sat -- 03:36 PM EDT     0.62 feet Low Tide
Sat -- 08:29 PM EDT     Sunset
Sat -- 09:25 PM EDT     1.90 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.10.90.911.21.51.71.91.91.81.51.310.80.60.60.81.11.41.71.91.91.7

Tide / Current Tables for Cove Point (1.1 mi. NE of), Maryland Current
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Cove Point (1.1 mi. NE of)
Click for Map
Sat -- 12:10 AM EDT     Moonrise
Sat -- 02:28 AM EDT     -0.35 knots Max Ebb
Sat -- 04:58 AM EDT     0.00 knots Slack
Sat -- 05:51 AM EDT     Sunrise
Sat -- 07:47 AM EDT     0.43 knots Max Flood
Sat -- 10:51 AM EDT     -0.00 knots Slack
Sat -- 12:05 PM EDT     Moonset
Sat -- 02:38 PM EDT     -0.58 knots Max Ebb
Sat -- 05:44 PM EDT     0.00 knots Slack
Sat -- 08:30 PM EDT     Sunset
Sat -- 08:44 PM EDT     0.54 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.2-0.3-0.3-0.200.20.40.40.30.2-0-0.2-0.4-0.6-0.6-0.5-0.20.10.30.50.50.50.3

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 Wakefield, VA (16,3,4,5)
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Ground Weather Radar Station Dover AFB, DE
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.