Friday, August7, 2020
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Marine Weather and Tides
Rock Point, 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 6:13AMSunset 8:12PM Friday August 7, 2020 8:18 PM EDT (00:18 UTC) Moonrise 9:39PMMoonset 8:55AM Illumination 84% Phase: Waning Gibbous; Moon at 19 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- 737 Pm Edt Fri Aug 7 2020
Tonight..S winds 10 kt...becoming sw late. Waves 1 ft. Numerous showers and scattered tstms this evening, then showers likely with isolated tstms after midnight.
Sat..NE winds 5 kt. Waves less than 1 ft. A chance of showers.
Sat night..W winds around 5 kt. Waves flat.
Sun..SE winds around 5 kt. Waves flat.
Sun night..S winds 5 to 10 kt. Waves 1 ft.
Mon..S winds 5 to 10 kt. Waves 1 ft.
Mon night..S winds 5 to 10 kt. Waves 1 ft.
Tue..S winds 5 to 10 kt. Waves 1 ft.
Wed..S winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance of tstms through the night. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 737 Pm Edt Fri Aug 7 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A stationary boundary will linger near the region and our marine areas this afternoon. This will result in chances for showers and Thunderstorms late this afternoon and evening. The boundary will then shift offshore tomorrow, resulting in drier conditions into early next week.


7 Day Forecast for Marine Location Near Rock Point CDP, MD
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location: 38.23, -76.73     debug


Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 072338 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 738 PM EDT Fri Aug 7 2020

SYNOPSIS. A weak surface boundary will remain near the local area through Saturday. This boundary will allow for additional showers and thunderstorms with locally heavy rainfall possible. High pressure settles over the area late in the weekend. Widely scattered afternoon thunderstorms will again be possible early next week.

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/. As of 735 PM EDT Friday .

Latest analysis shows an upper level trough to our west, while at the surface a stalled frontal boundary remains along the mountains. Currently monitoring convection to our NW and also a strong cluster of storms moving through northern MD/DE/MJ to see if any of this activity will make it into our FA later this evening. Have chance PoPs north and west through the evening hours to account for this potential. Otherwise, expecting no worse than isolated to widely sct coverage of shwrs through the late evening. Any lingering activity will the diminish after 06Z. Lows tonight are expected to range from the mid to upper 60s NW to the low to mid 70s SE. Unless pcpn begins to blossom in coverage over the next 1-2 hours, plan to cancel Flash Flood Watch early.

SHORT TERM /6 AM SATURDAY MORNING THROUGH MONDAY/. As of 355 PM EDT Friday .

The stationary front lingers over the region Saturday, providing another chance for diurnal storms to develop by the afternoon. Due to very low FFG WPC has majority of the CWA in a marginal risk for excessive rainfall. Will refrain from issuing a Flash Flood Watch for Saturday at this time due to uncertainty in coverage. Otherwise, any storms should begin to diminish Saturday night. High in the mid to upper 80s and lows in the mid to upper 60s NW to the low 70s SE.

Sunday will be a bit warmer with highs in the upper 80s to low 90s. There will be a chance for more isolated to scattered storms to develop by the afternoon, due to the stationary front still lingering, with the greatest chance in the SE VA/NE NC but with less coverage than prior days (PoPs 30-40%). Any storms dissipate overnight with lows in the mid to upper 60s NE to the low 70s SE.

Monday will be the warmest of the short term with highs in the low 90s. There is only a slight chance of storms in SE VA/NE NC, but most will remain dry. Lows Monday night will range from the upper 60s NW to the low 70s SE.

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

Still looking like a more typical summertime pattern for the medium range period (Mon night through Fri). The large scale pattern through much of the period will feature high pressure (at the surface and aloft) offshore of the SE CONUS coast. At the beginning of next week, weak upper troughing is progged to be centered in the vicinity of the Mississippi River Valley. The main upper level flow will remain well to our north (mainly near or just north of the US/Canada border). The area of upper troughing will slowly approach the area from the west next week. This will allow for diurnal (mainly aftn-evening) tstm chances to continue from Tue-Fri. Will generally trend PoPs slowly upward from Tue-late next week as the weak upper trough nears the area. Will cap PoPs at 50% in the grids for now, while noting that the blends have likely PoPs for much of the forecast area during the aftn-evening on Thu/Fri. Highs Tuesday in the low-mid 90s, falling back into the low 90s on Wed. Highs around 90F on Thu/Fri with increased cloud cover/tstm chances. Lows mainly between 70-75F through the medium range period.

AVIATION /00Z SATURDAY THROUGH WEDNESDAY/. As of 735 PM EDT Friday .

Winds will remain below 10 kt through the 00z TAF period. Sub- VFR CIGS/VSBYS possible again (mainly at RIC/SBY) from 08-13z Sat due to FG/ST. Otherwise, VFR outside of any isold shower or tstm this evening and again Sat afternoon.

Outlook . Mostly VFR conditions expected late this weekend into early next week outside of isolated afternoon/evening storms which could result in brief flight restrictions.

MARINE. As of 345 PM EDT Friday .

Benign marine conditions continue through the weekend with a weak front lingering over the area. The wind will generally be S aob 10kt, but could briefly become N/NW late Saturday night/early Sunday, and again late Sunday night/early Monday if the front can push far enough south. Southerly flow prevails early next week with high pressure centered off the coast. Seas will generally be ~2ft, with 1 foot waves in the Bay, and occasionally 1-2ft at the mouth of the Bay.

AKQ WATCHES/WARNINGS/ADVISORIES. MD . Flash Flood Watch until 2 AM EDT Saturday for MDZ021>025. NC . None. VA . Flash Flood Watch until 2 AM EDT Saturday for VAZ048-061-062- 064-068-069-075>078-081>086-089-090-093-095>100-509>525. MARINE . None.

SYNOPSIS . JDM/RMM NEAR TERM . JDM/RMM SHORT TERM . RMM LONG TERM . ERI AVIATION . JDM/ERI MARINE . AJZ


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PPTM2 - 8578240 - Piney Point, MD 12 mi49 min SSE 7 G 8
SLIM2 - 8577330 - Solomons Island, MD 16 mi49 min S 5.1 G 7 82°F 85°F1017.4 hPa
NCDV2 17 mi49 min SSW 1 G 1.9 82°F 85°F1017.1 hPa
LWTV2 - 8635750 - Lewisetta, VA 21 mi49 min SSW 5.1 G 6 82°F 82°F1017.5 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 22 mi55 min S 8.9 G 11 1018.1 hPa
44062 - Gooses Reef, MD 28 mi31 min 82°F 83°F
BISM2 - 8571421 - Bishops Head, MD 37 mi49 min SSW 8.9 G 12 82°F 84°F1017.4 hPa
BSLM2 - Chesapeake Bay, MD 38 mi109 min S 5.1 1016 hPa
CA2 - 8571892 - Cambridge, MD 42 mi49 min SW 2.9 G 5.1 83°F 84°F1017.4 hPa
WASD2 - 8594900 - Washington, DC 47 mi49 min SSW 6 G 8 84°F 83°F1017.3 hPa
TPLM2 - Thomas Point, MD 49 mi79 min SSE 14 G 15 82°F 83°F1018.1 hPa (-0.0)73°F

Wind History for Piney Point, MD
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St Marys County Airport, MD11 mi24 minN 010.00 miFair79°F69°F74%1017.9 hPa
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD17 mi26 minSSE 510.00 miFair83°F78°F85%1016.9 hPa
Patuxent River, Naval Air Station, MD18 mi27 minN 010.00 miMostly Cloudy80°F75°F85%1017.2 hPa

Link to 5 minute data for KNUI

Wind History from NUI (wind in knots)
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Last 24hrCalmS5S9Calm3CalmE3CalmSW3CalmCalmCalmCalmE5E53E3S5SE3E5E4E63S5
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmS3SW6NW3CalmNE4CalmN3CalmNE5NE4SE4CalmSE5NE8SE3Calm
2 days agoS5S6S6S7S9S8SW7W7W4CalmCalmCalmNE35NE75NE7NE6E4NE5NE3NE3E3Calm

Tide / Current Tables for Colton's Point, Potomac River, Maryland
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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 -- 12:06 AM EDT     0.00 knots Slack
Fri -- 02:15 AM EDT     0.48 knots Max Flood
Fri -- 04:45 AM EDT     -0.00 knots Slack
Fri -- 06:13 AM EDT     Sunrise
Fri -- 08:49 AM EDT     -0.91 knots Max Ebb
Fri -- 09:54 AM EDT     Moonset
Fri -- 01:04 PM EDT     0.00 knots Slack
Fri -- 03:01 PM EDT     0.46 knots Max Flood
Fri -- 05:41 PM EDT     -0.00 knots Slack
Fri -- 08:08 PM EDT     Sunset
Fri -- 09:15 PM EDT     -0.60 knots Max Ebb
Fri -- 10:37 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-00.30.50.40.2-0.1-0.4-0.7-0.9-0.9-0.8-0.6-0.3-00.30.50.40.2-0.1-0.3-0.5-0.6-0.6-0.5

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.
Link to Loop



Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Wakefield, VA (20,4,5,8)
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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.