Friday, May29, 2020
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Marine Weather and Tides
Cobb Island, 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 5:44AMSunset 8:26PM Friday May 29, 2020 10:41 PM EDT (02:41 UTC) Moonrise 11:14AMMoonset 12:34AM Illumination 55% Phase: First Quarter Moon; Moon at 8 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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ANZ537 Tidal Potomac From Cobb Island To Smith Point- 1036 Pm Edt Fri May 29 2020
Rest of tonight..SW winds 10 kt. Waves 1 to 2 ft. A slight chance of showers and tstms.
Sat..NW winds 5 to 10 kt. Waves 1 ft.
Sat night..N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Sun..N winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
Sun night..N winds 5 to 10 kt. Waves 2 ft.
Mon..NW winds 5 to 10 kt. Waves 1 to 2 ft.
Mon night..W winds 5 to 10 kt. Waves 1 ft.
Tue..S winds 10 to 15 kt. Waves 1 ft. A chance of showers through the night.
Wed..SW winds 10 to 15 kt. Waves 1 ft. A chance of showers in the morning. A chance of tstms, then a chance of showers through the night. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1036 Pm Edt Fri May 29 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front will approach from the west tonight and push through the area by early Saturday. High pressure will build over the area early next week. Small craft advisories may be needed Saturday night into Sunday.


7 Day Forecast for Marine Location Near Cobb Island, MD
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location: 38.22, -76.75     debug


Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 300138 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 938 PM EDT Fri May 29 2020

SYNOPSIS. Southerly flow in advance of a slow moving cold front approaching from the west will keep a moist and humid air mass in place into Saturday. A cold front is then expected to sweep across the region Saturday evening, bringing cooler and drier air to the region Sunday into early next week.

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/. As of 935 PM EDT Friday .

Late this evening, latest radar showed just isolated to sctd showers moving ENE through ern and extrm srn/SE portions of the area. Also, a broken line of sctd showers/tstms was pushing ewrd through the mtns. The latest CAMS (fcst reflectivity) show that these storms will weaken and dissipate over the next hour or two as they approach Louisa/Fluvanna counties. Still will keep chc PoPs for showers and maybe isolated tstm until just after midnight, then slight or sml chc over ern/sern areas overnight into early Sat morning. Conditions tonight remain warm and muggy with lows ranging from the mid 60s to lower 70s.

SHORT TERM /6 AM SATURDAY MORNING THROUGH MONDAY/. As of 345 PM EDT Friday .

Upper level trough and surface cold front approach the region on Saturday with the cold front forecast to swing from NW to SE through the course of the afternoon and early evening. Ahead of this boundary, there is some potential for strong storms to develop from late morning into the afternoon. SPC has outlined a Marginal Risk area across SE VA and NE NC, primarily for damaging straight line winds and isolated instances of hail. The greatest chance for thunder will exist from roughly the Richmond metro south and east where 1000-2000 J/kg of MLCAPE will overlap 20-30 knots of deep layer shear. Temperatures will be able to warm into the low and mid 80s in the prefrontal airmass. The front should be through most of the area by Saturday evening with decreasing temperatures and humidity. Lows Saturday night fall into the mid 50s NW but linger into the low 60s SE.

All precip should be well offshore by sunrise on Sunday with skies continuing to clear from NW to SE through the morning. Much drier and pleasant on Sunday afternoon with highs rising into the low and mid 70s. Much cooler on Sunday night with lows in the upper 40s NW to low/mid 50s for the remainder of the area. Continued dry and comfortable on Monday with high pressure overhead, highs into the low 70s with mostly clear skies.

LONG TERM /MONDAY NIGHT THROUGH FRIDAY/. As of 345 PM EDT Friday .

High pressure and dry conditions are expected Monday night and Tuesday. Several rounds of showers/storms are possible mid-late week as multiple shortwaves move through and NW flow dominates. Otherwise, expect a warming trend by mid-late week with the first 90F days of the year possible for many locations.

Low temps Mon night will be in the low 50s. Lows Tues night will be warmer in the low to mid 60s. Lows Wed and Thurs nights will range from the mid to upper 60s before cooling slightly to the low to mid 60s on Fri night. Highs Tuesday will range from the upper 70s to near 80F with mid 70s expected along the Eastern Shore. High Temps Wed and Thurs will range from the upper 80s to the lower 90s with mid 80s expected along the Eastern Shore. High temps cool slightly to the mid 80s with upper 70s to lower 80s expected along the Eastern Shore.

AVIATION /02Z SATURDAY THROUGH WEDNESDAY/. As of 805 PM EDT Friday .

Just expect isolated to sctd showers this evening into the overnight hours. So, mainly just have VCSH at the TAF sites through midnight, expect ECG where have -SHRA. Otherwise, expect mainly VFR or MVFR CIGs at the TAF sites this evening into Sat evening, as cold front will approach and push into the region. Do mention isolated IFR CIGs at ECG and PHF possible into early Sat morning. Winds will be primarily S around 5 to 10 kt and will become SW tonight into Sat morning, then become W then NW or NNE Sat aftn behind the cold front. Sctd showers and tstms will be possible Sat aftn into early Sat evening, mainly over SE portions of the area (PHF/ORF/ECG).

OUTLOOK . Becoming drier Sat night and Sun, as the front pushes out to sea and high pressure begins to build in from the NW.

MARINE. As of 940 PM EDT Friday .

All Small Craft Advisories have been cancelled. Seas at buoy 44009 are currently right around 4 feet and are expected to diminish further through the night.

Previous discussion: Southerly winds continue this afternoon. Generally 5-10 kts in the bay and 10-15 kts over the coastal waters. Waves in the bay 2-3 ft. Seas are 3-4 ft southern coastal waters and 3-5 ft northern coastal waters. SCA runs until 06Z for the elevated seas. S/SW flow on Saturday ahead of an approaching front from the west. Winds 5-15 kts. Waves in the bay 1-2 ft and seas 2-4 ft.

Front crosses the area waters late Saturday night with the winds turning to the N/NW behind the front. The brief CAA surge will likely result in SCA winds in the bay Sunday morning into the afternoon.

Low risk of rip currents this weekend.

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

SYNOPSIS . TMG NEAR TERM . RHR/TMG SHORT TERM . RHR LONG TERM . RMM AVIATION . RMM/TMG MARINE . AJB/CMF


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PPTM2 - 8578240 - Piney Point, MD 13 mi71 min SSW 6 G 7
NCDV2 17 mi71 min SSW 6 G 8.9 75°F 73°F1012.6 hPa
SLIM2 - 8577330 - Solomons Island, MD 17 mi71 min SSW 6 G 8 72°F 67°F1013.2 hPa
LWTV2 - 8635750 - Lewisetta, VA 22 mi71 min SW 8.9 G 11 73°F 71°F1013.9 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 23 mi71 min SSE 8.9 G 8.9 1013.8 hPa
44042 - Potomac, MD 26 mi41 min S 5.8 G 12 68°F 1 ft1014.3 hPa (+0.3)
44062 - Gooses Reef, MD 29 mi41 min SSE 7.8 G 9.7 68°F 1 ft
BISM2 - 8571421 - Bishops Head, MD 38 mi71 min SSW 13 G 17 73°F 76°F1013.4 hPa
BSLM2 - Chesapeake Bay, MD 39 mi131 min SSW 5.1 1012 hPa
CA2 - 8571892 - Cambridge, MD 44 mi71 min S 8 G 13 73°F 69°F1013.3 hPa
WASD2 - 8594900 - Washington, DC 47 mi71 min S 6 G 8.9 78°F 75°F1012.7 hPa

Wind History for Piney Point, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD18 mi48 minS 510.00 miFair76°F70°F82%1013.6 hPa
Patuxent River, Naval Air Station, MD19 mi1.8 hrsSSW 810.00 miMostly Cloudy74°F69°F85%1013.1 hPa

Link to 5 minute data for K2W6

Wind History from 2W6 (wind in knots)
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Last 24hrSE4SE4SE5S3S4S3CalmS3S3CalmCalmCalmCalmCalmS3S3S5SW4SE6SE7S6S4S6SW5
1 day agoW7NW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW4W3NW4W6W9SW9W8SW7W10
G16
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Tide / Current Tables for Colton's Point, Maryland
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Colton's Point
Click for Map
Fri -- 01:33 AM EDT     Moonset
Fri -- 01:46 AM EDT     0.38 feet Low Tide
Fri -- 05:46 AM EDT     Sunrise
Fri -- 08:09 AM EDT     2.08 feet High Tide
Fri -- 12:14 PM EDT     Moonrise
Fri -- 02:32 PM EDT     0.26 feet Low Tide
Fri -- 08:22 PM EDT     Sunset
Fri -- 08:59 PM EDT     1.99 feet High Tide
Fri -- 11:30 PM EDT     First Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.40.40.50.71.21.622.121.71.20.80.50.30.30.40.81.31.71.921.81.5

Tide / Current Tables for Point Patience, 0.1 mile southwest of, Maryland Current
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Point Patience
Click for MapFlood direction 315 true
Ebb direction 145 true

Fri -- 01:32 AM EDT     Moonset
Fri -- 02:27 AM EDT     0.00 knots Slack
Fri -- 04:54 AM EDT     0.44 knots Max Flood
Fri -- 05:45 AM EDT     Sunrise
Fri -- 07:32 AM EDT     -0.00 knots Slack
Fri -- 11:45 AM EDT     -0.85 knots Max Ebb
Fri -- 12:12 PM EDT     Moonrise
Fri -- 04:10 PM EDT     0.00 knots Slack
Fri -- 06:03 PM EDT     0.38 knots Max Flood
Fri -- 08:22 PM EDT     Sunset
Fri -- 08:41 PM EDT     -0.00 knots Slack
Fri -- 11:30 PM EDT     First Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.4-0.3-0.10.10.40.40.40.1-0.1-0.4-0.7-0.8-0.8-0.8-0.6-0.3-00.20.40.30.1-0.1-0.3-0.4

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
Wind Forecast for Wakefield, VA (22,6,7,8)
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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.