Thursday, December12, 2019
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Marine Weather and Tides
Waterview, MD

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:08AMSunset 4:43PM Thursday December 12, 2019 11:43 PM EST (04:43 UTC) Moonrise 5:20PMMoonset 7:27AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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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ANZ543 Tangier Sound And The Inland Waters Surrounding Bloodsworth Island- 937 Pm Est Thu Dec 12 2019
Rest of tonight..NE winds 5 to 10 kt. Waves 1 ft.
Fri..NE winds 5 to 10 kt. Waves 1 ft. Rain likely.
Fri night..SE winds 5 to 10 kt. Waves 1 ft. Rain. Vsby 1 to 3 nm.
Sat..SW winds 10 to 15 kt. Waves 1 to 2 ft. Rain likely.
Sat night..W winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. A chance of showers.
Sun..W winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Sun night..NW winds 5 to 10 kt. Waves 1 ft.
Mon..SE winds 10 to 15 kt. Waves 1 to 2 ft...building to 3 ft after midnight. Snow likely in the morning. A chance of rain through the day, then rain likely through the night.
Tue..SW winds 10 to 15 kt...becoming nw. Waves 2 to 3 ft. Showers likely in the morning, then a chance of showers through the night.
ANZ500 937 Pm Est Thu Dec 12 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure over the region will shift offshore through this tonight. A low pressure system developing over the northern gulf of mexico will move northeastward toward the region Friday into Saturday. Small craft advisories may be needed Saturday through Sunday morning.


7 Day Forecast for Marine Location Near Waterview, MD
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location: 38.22, -75.88     debug


Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 130322 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 1022 PM EST Thu Dec 12 2019

SYNOPSIS. High pressure exits to the northeast through tonight. Low pressure develops along the Gulf Coast on Friday, then tracks northeast along the eastern seaboard over the upcoming weekend.

NEAR TERM /UNTIL 6 AM FRIDAY MORNING/. As of 1015 PM EST Thursday .

Forecast remains on track with only minor adjustments necessary to overnight low temps as clear skies this evening allowed temps to fall a few degrees below the forecast temperature curve. Scattered to broken mid level cloud deck is advancing from SW to NE with temperatures expected to slowly increase as outgoing long wave radiation get reflected back toward the surface.

Previous Discussion:

Moisture from a developing system to the SSW increases along a sfc trough in vicinity of the mountains tonight. There could be a bit of light rain that funnels north along the immediate coast prior to 12z. Otherwise, the focus of attention in the short term forecast will be on whether or not parts of the Piedmont see any frozen pcpn arriving early Friday morning. At this time, have slight chc Pops (~20%) limited to the coast from 06z- 12z. Also have slight chc PoPs across the far western extent of the FA from 06-09z, increasing to 30-50% by 12z.

Thermal profiles continue to indicate the potential for this precipitation to begin as a period of ZR (IP across the NW where there will be colder temperatures aloft initially). The chance to see a period of ZR/IP will continue across the NW until around 14z before transitioning to all rain. Only minor ice accumulations (if any) are forecast (generally ~0.02" or less) for these areas, and thus have opted not to have a winter wx advisory as impacts will be very minor to none and very short- lived. Will mention light ZR/IP potential in the HWO.

Lows for tonight will occur this evening or before midnight, then steady or slowly rising temps through 12z. Lows from upr 20s/nw 30 NW to around 40 SE.

SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/. As of 330 AM EST Thursday .

WAA moisture will continue to overspread the area from the SSW through the day on Friday, staying as plain rain for all areas minus the aforementioned far NW/W locations. Deepest moisture arrives later in afternoon Friday into the overnight hours with likely to def PoPs in the forecast for this timeframe. Temperatures will vary widely from NW to SE during the day on Friday due to the in-situ wedge setup with highs ranging from around 40 across the NW to near 60 across the northern OBX.

Low pressure lifts NE and away from the mid-Atlantic region on Saturday. However, upper level energy rotating in from WNW will generate additional rain chances, especially through the morning. PoPs continue to trend lower in the afternoon with potential dry slot arrival. Highs from the low 50s NW to the low 60s SE. Total QPF through Saturday will average around 1".

Dry wx returns Saturday night into Sunday with WNW flow developing. Fair to partly cloudy Saturday night, then mostly sunny on Sunday. Lows Saturday night in the upr 30s to mid 40s. Highs Sunday in the 50s.

LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/. As of 400 PM EST Thursday .

An upper trough will be across the central US early next week with a sfc low pressure developing across the southern Plains Sunday night into Monday. At the same time, a broad area of sfc high pressure will stretch from Ontario to the western Atlantic. A frontal boundary will develop and extend from the center of the sfc low (located over the southern Plains) to the Mid- Atlantic. This will produce a chance of rain showers Monday. There will be chance of rain and snow mix Monday morning north of Richmond and for the Maryland Eastern Shore with temperatures in the low 30s, before changing over to rain by Monday afternoon. Rest of the area, low temperatures will be in the upper 30s to near 40 Monday morning. High temperatures on Monday will range from near 60 across northeast NC to low 40s across central VA.

It will turn dry once again Monday afternoon into Monday night. An area of wide spread rain will likely move into the area a the center of the sfc low moves across. Similar to yesterday, the GFS keeps the center of the low well north and west of the area, while the Canadian and ECMWF track the center of the low across VA (which is slightly farther north than models runs showed yesterday). With a track slightly farther north, temperatures will warmer. The warmer air will likely move into the area beginning Monday night with a southerly flow. High temperatures Tuesday will reach the upper 60s across the northeast NC and Hampton Roads, upper 50s to near 60s across Delmarva, and low to mid 50s along and west of I-95.

Rain will move offshore Tuesday night with the passage of a cold front. Sfc high pressure, that was located of NW Canada, will move into the area behind the front bring colder temperatures. High pressure will remain over the area for Tuesday and Wednesday with dry conditions. High temperatures will be in the upper 30s to mid 40 with low temperatures in the low/mid 20s to low 30s at the coast.

AVIATION /03Z FRIDAY THROUGH TUESDAY/. As of 630 PM EST Thursday .

Layer of stratocu that impacted the eastern terminals is now only over SBY and should dissipate shortly, leaving a period of SKC for most before additional mid and high clouds come in from the west this evening/overnight. VFR flying weather is expected to prevail at all sites through ~13.10Z, with slowly lowering CIGs from west to east into the daylight hours. Will show IFR CIGs for Friday, beginning first at RIC and spreading east into the afternoon. Winds will generally be out of the northeast through the period, around 5 knots. Rain overspreads the region from SW to NE through the late morning into the afternoon as low pressure lifts northward from the Carolinas.

OUTLOOK . Rain and degraded flight conditions will last into the first half of Saturday. The heaviest/steadiest rain is expected through Saturday morning. A gradual return to VFR conditions expected later Sat, with VFR conditions expected Sunday into early next week.

MARINE. As of 400 PM EST Thursday .

High pressure weakens and moves offshore this evening. SCA now up for North Carolina waters will come down this evening as seas subside. Winds currently around 10 kt in the bay and 10 to 15 kt in coastal waters will remain near constant or decrease slightly by a couple of knots this evening. Waves will remain generally 1 to 2 ft in the bay with seas of 3 to 4 ft in coastal waters this evening into the day Friday. Low pressure will move into the region Friday into Saturday bringing with it increased waves of 2 to 3 ft in the bay and seas of 4 to 6 feet beginning Saturday before subsiding during the day on Sunday. Winds will weaken to 5 to 10 kt on Friday before increasing to 10 to 15 kt Saturday morning and 15 to 20 kt (with coastal waters sustained at 20 to 25 kts) Saturday evening into Sunday morning. SCA will be possible mainly for winds (possibly for seas) in later updates but will not be issued at this time.

A weak cold front settles S over the waters Sun night shifting winds from SW to NE (though conditions expected to be sub-SCA). Onshore winds Mon become SSW (and potentially increase to at least low end SCA) late Mon into Tue as that front lifts back N as a warm front. A stronger cold front is forecast to cross the waters late Tue.

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

SYNOPSIS . JDM NEAR TERM . JDM/RHR SHORT TERM . JDM LONG TERM . CP AVIATION . AJB/JDM/RHR MARINE . RMM


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BISM2 - 8571421 - Bishops Head, MD 8 mi73 min E 11 G 12 37°F 41°F1035.2 hPa
CA2 - 8571892 - Cambridge, MD 26 mi73 min E 7 G 11 36°F 43°F1035.3 hPa
44042 - Potomac, MD 27 mi49 min 39°F 46°F1034.9 hPa
SLIM2 - 8577330 - Solomons Island, MD 31 mi73 min ENE 8 G 9.9 37°F 46°F1035.1 hPa
LWTV2 - 8635750 - Lewisetta, VA 35 mi73 min E 13 G 15 40°F 43°F1035 hPa
PPTM2 - 8578240 - Piney Point, MD 35 mi73 min ENE 1.9 G 1.9
44062 - Gooses Reef, MD 37 mi55 min ESE 9.7 G 12 37°F 1036.1 hPa
OCIM2 - 8570283 - Ocean City Inlet, MD 42 mi73 min E 9.9 G 13 44°F 47°F1036 hPa
44089 43 mi43 min 50°F4 ft
WAHV2 - 8631044 - Wachapreague, VA 44 mi73 min ENE 12 G 17 44°F 44°F1034 hPa
RPLV2 - 8632837 - Rappahannock Light, VA 48 mi73 min NE 9.9 G 12 1034.8 hPa
44058 - Stingray Point, VA 49 mi85 min ENE 12 G 14 47°F1037.9 hPa

Wind History for Bishops Head, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Salisbury, Salisbury-Ocean City Wicomico County Regional Airport, MD22 mi49 minENE 510.00 miFair34°F27°F76%1035 hPa
Cambridge-Dorchester Airport, MD23 mi48 minN 010.00 miA Few Clouds32°F26°F80%1034.9 hPa

Link to 5 minute data for KSBY

Wind History from SBY (wind in knots)
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Last 24hrNW7NW7NW5CalmCalmN3N4CalmCalmN6NE94E7SE7NE6E8E6NE4NE6N4CalmNE6E4E5
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NW9N7NW8NW3NW5NW8NW9
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Tide / Current Tables for Great Shoals Light, Monie Bay, Chesapeake Bay, Maryland
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Great Shoals Light
Click for Map
Thu -- 12:14 AM EST     Full Moon
Thu -- 01:31 AM EST     2.16 feet High Tide
Thu -- 07:10 AM EST     Sunrise
Thu -- 07:26 AM EST     Moonset
Thu -- 07:45 AM EST     -0.09 feet Low Tide
Thu -- 01:53 PM EST     2.76 feet High Tide
Thu -- 04:43 PM EST     Sunset
Thu -- 05:19 PM EST     Moonrise
Thu -- 08:41 PM EST     -0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.82.12.11.91.40.80.3-0-0.10.20.71.52.12.62.82.62.11.50.90.40-00.30.8

Tide / Current Tables for Salisbury, Maryland (2 miles below) Current
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Salisbury
Click for Map
Thu -- 12:03 AM EST     0.49 knots Max Flood
Thu -- 12:14 AM EST     Full Moon
Thu -- 02:41 AM EST     -0.00 knots Slack
Thu -- 05:58 AM EST     -0.97 knots Max Ebb
Thu -- 07:09 AM EST     Sunrise
Thu -- 07:26 AM EST     Moonset
Thu -- 09:03 AM EST     0.00 knots Slack
Thu -- 12:08 PM EST     0.78 knots Max Flood
Thu -- 03:39 PM EST     -0.00 knots Slack
Thu -- 04:42 PM EST     Sunset
Thu -- 05:18 PM EST     Moonrise
Thu -- 06:48 PM EST     -0.94 knots Max Ebb
Thu -- 10:09 PM EST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.40.2-0.1-0.5-0.8-1-0.8-0.5-00.40.70.80.70.50.2-0.1-0.6-0.9-0.9-0.8-0.4-0.10.3

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Wakefield, VA (23,6,7,8)
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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 numerious 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.