Tuesday, April20, 2021
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Marine Weather and Tides
Solomons, MD

Version 3.4
NOTICE
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 6:22AMSunset 7:50PM Tuesday April 20, 2021 6:12 AM EDT (10:12 UTC) Moonrise 11:28AMMoonset 1:47AM Illumination 60% Phase: Waxing Gibbous; 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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ANZ542 Patuxent River To Broomes Island Md- 440 Am Edt Tue Apr 20 2021
.small craft advisory in effect late tonight...
.gale watch in effect from Wednesday afternoon through Thursday afternoon...
Rest of the overnight..SW winds 5 kt. Waves less than 1 ft. Patchy fog. Vsby 1 to 3 nm.
Today..S winds 5 to 10 kt. Waves 1 ft.
Tonight..S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Wed..S winds 10 to 15 kt with gusts to 20 kt... Becoming W with gusts to 30 kt in the afternoon. Waves 1 to 2 ft. Numerous showers with a chance of tstms.
Wed night..NW winds 15 to 20 kt with gusts to 35 kt. Waves 2 ft.
Thu..W winds 10 to 15 kt with gusts to 30 kt. Waves 1 ft.
Thu night..W winds 10 to 15 kt. Gusts up to 30 kt in the evening. Waves 1 ft.
Fri..W winds 5 to 10 kt. Waves 1 ft.
Sat..SE winds 5 to 10 kt. Waves 1 ft. Showers likely. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 440 Am Edt Tue Apr 20 2021
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will remain over the western atlantic through tonight. A strong cold front will pass through the waters Wednesday and high pressure high pressure will build to the south and west through late in the week. Low pressure may impact the waters this weekend. A small craft advisory may be needed for portions of the waters Thursday night.


7 Day Forecast for Marine Location Near Solomons, MD
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location: 38.33, -76.49     debug


Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 200756 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 356 AM EDT Tue Apr 20 2021

SYNOPSIS. High pressure will build along the Mid-Atlantic coast tonight and Tuesday. A strong cold front will cross the area Wednesday. Canadian high pressure will build to our west Wednesday night through Thursday before settling to the south late in the week. Low pressure may affect the area over the weekend.

NEAR TERM /THROUGH TONIGHT/. High pressure will remain over the Atlantic while low pressure develops along a cold front over the Ohio and Tennessee Valleys. A southerly flow along with sunshine will allow for a warm afternoon. Max temps will be in the 70s for most areas. Did forecast toward the warmer side of guidance due to the sunshine and deep mixing layer that is expected to develop.

The southerly flow will advect some moisture this afternoon into this evening, and there will be a surface trough over our west and northwestern areas. Therefore, a few popup showers are possible late this afternoon into this evening, mainly west of the Blue Ridge and Catoctin Mountains. Coverage should be isolated to scattered since lift will be weak.

Low pressure will strengthen along the cold front to our north and west tonight as a potent an upper-level trough begins to dig through the Great Lakes and Midwest. A mild southerly flow will continue over the area. A few showers are possible due to the moisture advection and strengthening low-level wind field, but coverage should be isolated to scattered and any precipitation amounts will be light. Temps may hold in the 50s for most areas with 40s in the mountains.

SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/. The potent upper-level trough will dig overhead Wednesday through Wednesday night. The surface low associated with this will strengthen and track to our north while a cold front passes through our area Wednesday before moving offshore Wednesday night. A few showers are likely/expected with the frontal passage, with the highest confidence for precipitation being east of the Blue Ridge and Catoctin Mountains as well as along/west of the Allegheny Front. The forcing along the front will be strong, so a line of gusty showers/scattered thunderstorms are possible with the frontal passage mainly east of the Blue Ridge and Catoctin Mountains. Latest guidance continues to show limited instability, but steep low-level lapse rates and stronger sheer profiles suggests that locally damaging wind gusts are possible.

It will turn out blustery and sharply colder behind the cold front Wednesday morning west of the Blue Ridge and Wednesday afternoon east of the Blue Ridge. Gusty west to northwest winds with frequent gusts around 25 to 40 mph are also expected. The cold advection and upslope flow will bring some snow showers for locations along and west of the Allegheny Front later Wednesday morning and afternoon. Snow may coat the ground along the ridge tops.

The upper-level trough will remain overhead Wednesday night allowing for more blustery and chilly conditions for this time of year. A few mountain snow showers are possible, and isolated snow or rain shower may even spill east of the mountains. Any accumulation should be light due to limited moisture and confined to the ridges. However, it will turn out quite chilly for this time of year with min temps dropping into the lower and middle 30s for most places with 20s in the mountains. Freeze headlines may be warranted.

The upper-level trough will remain overhead Thursday while low pressure slowly tracks into the Canadian Maritimes. Gusty northwest winds are expected and it will be quite chilly for this time of year. A few snow showers are expected along/west of the Allegheny Front and a rain/snow shower could spill east of the mountains as well. Winds will diminish Thursday night as the upper-level trough departs and high pressure builds nearby to the south and west. More chilly conditions are expected and frost/freeze headlines may be warranted.

LONG TERM /FRIDAY THROUGH MONDAY/. Troughing will progress offshore on Friday, with zonal flow aloft moving in. At the surface, high pressure will drift off the Carolina coastline. Mostly sunny skies are anticipated, with temperatures in the 60s.

A shortwave embedded in the southern stream will approach the area from the southwest during the day on Saturday. As this disturbance approaches, it will begin to feel the influence of a much broader trough situated off to the north. Model guidance is in good agreement that a surface low will develop in advance of the mid- level shortwave embedded in the southern stream. However, there is considerable spread with respect to the tilt of mid-level shortwave as it interacts with the larger trough to the north, as well as the resultant strength of the surface low. Nearly all solutions show a soaking rainfall Saturday evening through Saturday night, but there is substantial spread with respect to the strength of the surface low and the resultant wind field in the system's wake on Sunday. This isn't surprising given the differences with respect to the tilt of the shortwave. Flooding is not expected to be an issue with dry antecedent conditions and a fast moving storm. Severe weather isn't expected to be an issue either, with nearly all guidance indicating stable conditions as the low tracks either overhead or just to our southeast.

Some showers could potentially linger for the first half of Sunday, but improving conditions are expected Sunday afternoon as low pressure pulls further off toward the northeast. Sunday should be at a minimum a breezy day, with stronger winds possible depending on the strength of the departing surface low. Mostly sunny skies are expected on Monday as high pressure progresses in from the west. Temperatures on both Sunday and Monday will be near to slightly below normal, with highs in the mid-upper 60s.

AVIATION /07Z TUESDAY THROUGH SATURDAY/. Radiation fog has developed over the Virginia Piedmont, and this may spread or develop over the terminals. However, a light southerly wind may hang on and keep the fog threat isolated. Therefore, confidence is too low to mention in the forecast at this time.

VFR conditions are expected for the rest of today through tonight. An isolated shower is possible tonight, but most of the time will be dry. A strong cold front will pass through Wednesday, showers are expected along a possible thunderstorm. The best chance for showers and a thunderstorm will be over the eastern terminals. There is an isolated threat for damaging winds with any thunderstorms that develop.

A wind shift from the south and southwest to the northwest will accompany the frontal passage and gusts around 25 to 35 knots are expected behind the boundary later Wednesday morning into early afternoon.

Gusty winds will continue through Thursday (although winds may diminish for a brief period late Wednesday night) before diminising Thursday night as high pressure builds nearby.

VFR conditions are expected Friday through the first half of Saturday. Conditions may deteriorate to sub-VFR by later Saturday afternoon into Saturday night as rain and low clouds move in.

MARINE. A southerly flow will develop today and gradually strengthen. An SCA is in effect this afternoon and evening for the middle and lower portions of the Bay as well as the lower Tidal Potomac River. The SCA expands to include all of the Bay overnight and the middle Potomac River as well. An SCA will likely be needed ahead of the cold front for all of the waters Wednesday morning/midday.

The cold front will pass through the waters around midday, and gusty northwest winds are expected behind the boundary. A Gale Watch remains in effect for the waters Wednesday afternoon and continues through Thursday. High pressure will build to the south and west Thursday night, and winds will diminish, but an SCA may still be needed for portions of the waters.

SCA level winds may linger through the day Friday. Winds will become southerly on Saturday, and could approach SCA levels.

TIDES/COASTAL FLOODING. An onshore flow will cause anomalies to increase through tonight. However, the flow will be relatively light, so caution stages are more likely, but minor flooding for senstive areas are possible around high tides later today into Wednesday morning.

A strong offshore will cause anomalies to fall sharply later Wednesday into Thursday.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . None. VA . None. WV . None. MARINE . Gale Watch from Wednesday afternoon through Thursday afternoon for ANZ530>543. Small Craft Advisory from 3 PM this afternoon to 6 AM EDT Wednesday for ANZ532>534-539>541-543. Small Craft Advisory from 6 PM this evening to 6 AM EDT Wednesday for ANZ531-537-538. Small Craft Advisory from midnight tonight to 6 AM EDT Wednesday for ANZ530-536-542.

SYNOPSIS . BJL NEAR TERM . BJL SHORT TERM . BJL LONG TERM . KJP AVIATION . BJL/KJP MARINE . BJL/KJP TIDES/COASTAL FLOODING . BJL


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SLIM2 - 8577330 - Solomons Island, MD 2 mi54 min W 1.9 G 4.1 51°F 58°F1014.5 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 7 mi54 min SW 14 G 18 54°F 1014.1 hPa
PPTM2 - 8578240 - Piney Point, MD 14 mi54 min W 1.9 G 6
44062 - Gooses Reef, MD 16 mi42 min 16 G 21 52°F 56°F1 ft1015 hPa
44042 - Potomac, MD 22 mi36 min SW 5.8 G 5.8 54°F 57°F1015.5 hPa
LWTV2 - 8635750 - Lewisetta, VA 23 mi54 min WSW 6 G 7 50°F 58°F1015 hPa
BISM2 - 8571421 - Bishops Head, MD 25 mi54 min SW 7 G 8 54°F 57°F1014.7 hPa
CA2 - 8571892 - Cambridge, MD 28 mi54 min SSE 2.9 G 2.9
NCDV2 29 mi60 min Calm G 0 46°F 61°F1014 hPa
BSLM2 - Chesapeake Bay, MD 33 mi102 min SSW 4.1 47°F 1014 hPa46°F
TPLM2 - Thomas Point, MD 39 mi72 min SSW 8.9 G 9.9 53°F 55°F1014.8 hPa (+0.0)49°F
44063 - Annapolis 44 mi42 min 7.8 G 9.7 50°F 57°F1015.2 hPa
APAM2 - 8575512 - Annapolis, MD 45 mi54 min Calm G 2.9 50°F 58°F1013.5 hPa
CPVM2 46 mi54 min 54°F 49°F
WASD2 - 8594900 - Washington, DC 47 mi54 min SW 2.9 G 5.1 51°F 60°F1014.3 hPa

Wind History for Solomons Island, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Patuxent River, Naval Air Station, MD6 mi80 minWSW 710.00 miFair51°F49°F92%1014.5 hPa
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD13 mi19 minSSW 610.00 miFair51°F46°F83%1014.9 hPa

Link to 5 minute data for K2W6

Wind History from 2W6 (wind in knots)
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Last 24hrW6N6W10W8
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NW6W5NW5W4W3W4CalmW3Calm--W9
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1 day agoS4SW4NW4CalmE4E3SE4CalmSE4CalmCalmCalmCalmSE3CalmCalmCalmCalmCalmCalmCalmCalmW4NW4
2 days agoN4CalmNW3NE4CalmNE3E4E3E3CalmCalmCalmCalmCalmCalmCalmCalmCalmW3CalmS3SW3SW5SW6

Tide / Current Tables for Solomons Island, Patuxent River, Maryland (2)
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Solomons Island
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Tue -- 02:22 AM EDT     0.52 feet Low Tide
Tue -- 02:46 AM EDT     Moonset
Tue -- 03:00 AM EDT     First Quarter
Tue -- 06:22 AM EDT     Sunrise
Tue -- 09:22 AM EDT     1.44 feet High Tide
Tue -- 12:27 PM EDT     Moonrise
Tue -- 03:57 PM EDT     0.56 feet Low Tide
Tue -- 07:47 PM EDT     Sunset
Tue -- 09:52 PM EDT     1.10 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.60.50.50.60.811.21.41.41.41.31.10.90.70.60.60.60.70.811.11.11.1

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

Tue -- 12:05 AM EDT     -0.34 knots Max Ebb
Tue -- 02:46 AM EDT     Moonset
Tue -- 03:00 AM EDT     First Quarter
Tue -- 03:25 AM EDT     0.00 knots Slack
Tue -- 06:10 AM EDT     0.45 knots Max Flood
Tue -- 06:22 AM EDT     Sunrise
Tue -- 09:00 AM EDT     -0.00 knots Slack
Tue -- 12:28 PM EDT     Moonrise
Tue -- 01:13 PM EDT     -0.77 knots Max Ebb
Tue -- 05:50 PM EDT     0.00 knots Slack
Tue -- 07:24 PM EDT     0.26 knots Max Flood
Tue -- 07:47 PM EDT     Sunset
Tue -- 09:42 PM EDT     -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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-0.3-0.3-0.2-0.10.10.30.40.40.20-0.3-0.5-0.7-0.8-0.7-0.6-0.4-0.200.20.20.1-0.1-0.2

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