Saturday, February22, 2020
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Marine Weather and Tides
Algonquin, 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 6:45AMSunset 5:50PM Saturday February 22, 2020 1:09 AM EST (06:09 UTC) Moonrise 6:33AMMoonset 4:56PM Illumination 2% Phase: Waning Crescent; Moon at 28 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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ANZ541 Choptank River To Cambridge Md And The Little Choptank River- 1238 Am Est Sat Feb 22 2020
Overnight..W winds 5 to 10 kt. Waves 1 ft.
Sat..SW winds 5 to 10 kt. Waves 1 ft.
Sat night..W winds 5 to 10 kt. Waves 1 ft.
Sun..SW winds 5 kt. Waves less than 1 ft.
Sun night..S winds 5 to 10 kt. Waves 1 ft.
Mon..S winds 5 to 10 kt. Waves 1 ft. A chance of rain.
Mon night..S winds 5 to 10 kt. Waves 1 ft. Rain likely.
Tue..E winds 5 kt. Waves less than 1 ft. Showers likely through the day, then a chance of showers through the night.
Wed..SE winds 5 to 10 kt...becoming W 10 to 15 kt after midnight. Waves 1 to 2 ft. A chance of showers through the day, then showers likely in the evening. A chance of showers after midnight.
ANZ500 1238 Am Est Sat Feb 22 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build over the waters through the weekend. Low pressure will pass through the ohio valley Monday into Tuesday, with a strong cold front poised to cross the waters toward the middle portion of next week.


7 Day Forecast for Marine Location Near Algonquin, MD
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location: 38.59, -76.07     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 220525 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 1225 AM EST Sat Feb 22 2020

SYNOPSIS. High pressure slowly builds across the region through the weekend before exiting Sunday afternoon. A series of low pressure systems moving up from the south look to affect the region for the early to middle part of next week. Low pressure should eventually depart to the north and east by late next Thursday into Friday.

NEAR TERM /UNTIL 6 AM THIS MORNING/. As of 1230 AM . Winds have continued to relax this morning. Temperatures look on track, and no changes were required at this time.

High pressure extending from the southern Great Plains to the Ohio River Valley will continue to build eastward tonight. The air mass will bring a clear sky and a very light west wind to our region. Low temperatures will be in the teens and lower 20s.

SHORT TERM /6 AM THIS MORNING THROUGH 6 PM SUNDAY/. The core of the area of high pressure is expected to be located in the southeastern states on Saturday. We are anticipating another sunny day.

A developing west southwest wind around 10 mph with gusts of 15 to 20 mph should begin to draw milder air into our region. Highs will likely favor the upper 40s and lower 50s in northeastern Maryland, Delaware, New Jersey, southeastern Pennsylvania and the Lehigh Valley. Readings should reach only the lower and middle 40s in the elevated terrain of the Poconos and far northern New Jersey.

LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/. Saturday night through Sunday night .

Dry and relatively mild conditions persist through this period as high pressure to our south slowly moves off the coast resulting in a SW flow. As a result, Saturday night will be milder than Friday night with lows mainly in the 20s to low 30s under mainly clear skies. This will be followed by sunshine for Sunday with highs mainly in the low to mid 50s except 40s over the southern Poconos. The quiet weather continues Sunday night as high pressure moves off the coast and low pressure approaches from the west. The continuing SW flow will result in overnight lows on the milder side for this time of year with lows mainly in the upper 20s to mid 30s.

Monday through Friday .

The pattern becomes unsettled for much of next week as a trough deepens in the east resulting in multiple waves of low pressure moving up from the south bringing mainly rain to the area. For Monday, low pressure will slowly move from Oklahoma to Tennessee through the day resulting in increasing cloud cover with time. The day should be mainly dry however by very late day, the leading edge of some light rain could begin moving into the Delmarva as well as SE PA and southern NJ. Monday's highs will once again be mainly in the 50s.

The initial wave of low pressure described above looks to spread some rain into the area Monday night into Tuesday with some snow at the onset possible over the southern Poconos. Following this initial wave, there looks to be a lull for a time Tuesday night into early Wednesday as the low re-organizes to our south in response to a stronger shortwave rounding the base of the deepening long wave trough over the east. This looks to eventually drive the low northward through the area late Wednesday into early Thursday as the system deepens. While it's a little early to get into any specifics, this part of the system could be more significant possibly bringing a period of heavier rainfall through the region. Since the low looks to track close to the area with no real cold air in place ahead of it, it should again be mainly rain area wide. Colder, drier weather looks to return by the end of next week in the system's wake with some possible snow showers around, mainly over the southern Poconos.

AVIATION /06Z SATURDAY THROUGH WEDNESDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Tonight . VFR under clear skies. West-southwesterly wind around 5 knots or less. Winds at sites outside of the I-95 corridor may go light and variable at times. High confidence.

Saturday . VFR under clear skies. West southwest wind increasing around 10 knots with gusts of 15 to 20 knots. High confidence.

Saturday night . VFR. Southwest to west wind less than 10 kts. High confidence.

Outlook .

Sunday . VFR. Southwest wind 5 to 10 knots. High confidence.

Sunday night . VFR. Southwest wind 6 knots or less, becoming south toward morning. High confidence.

Monday . Mainly VFR. Increasing cloud cover through the day with a slight chance of rain late in the day. S/SW wind 5 to 10 knots. Medium confidence on timing of any rainfall.

Monday night . MVFR likely. A chance of rain. South wind 5 to 10 knots. Medium confidence on timing and coverage of any rainfall.

Tuesday . MVFR with periods of IFR possible in rain. Southeast wind 5 to 10 knots. Medium confidence.

Tuesday night through Wednesday . Periods of Sub VFR conditions likely. There could be a lull in the rain though for Tuesday night before additional rain moves in for Wednesday. Winds light and variable Tuesday night becoming east 5-10 knots Wednesday.

MARINE. Initially light and variable winds will become westerly near 10 knots overnight and will increase to around 15 knots for Saturday. Wave heights on our ocean waters will favor the 2 to 3 foot range. Waves on Delaware Bay should be 2 feet or less.

Outlook .

Saturday night . Sub-SCA conditions expected with seas generally running 2-3 ft and gusts up to 20 kts.

Sunday through Monday . Sub-SCA conditions expected with seas generally running 2-3 ft and gusts of 10 to 15 kts.

Monday night and Tuesday night . Sub-SCA conditions expected with seas increasing to 3-4 ft and gusts mainly 15 kts or less.

Wednesday and Wednesday night . SCA conditions likely by Wednesday night with southeast winds increasing to 10 to 20kts and seas ramping up to 4 to 6 feet by Wednesday evening.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . None.

Synopsis . Fitzsimmons Near Term . Haines/Iovino/Staarmann Short Term . Iovino Long Term . Fitzsimmons Aviation . Fitzsimmons/Haines Marine . Fitzsimmons/Iovino


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CA2 - 8571892 - Cambridge, MD 1 mi58 min S 4.1 G 5.1 27°F 42°F1030.4 hPa
44062 - Gooses Reef, MD 18 mi40 min W 7.8 G 9.7 35°F 1030.4 hPa
BISM2 - 8571421 - Bishops Head, MD 26 mi52 min SW 4.1 G 5.1
SLIM2 - 8577330 - Solomons Island, MD 27 mi52 min W 1.9 G 4.1 31°F 43°F1030.4 hPa
TPLM2 - Thomas Point, MD 29 mi70 min SW 8.9 G 9.9 33°F 41°F1031.1 hPa (-1.4)17°F
CPVM2 33 mi52 min 34°F
APAM2 - 8575512 - Annapolis, MD 35 mi52 min 29°F 1029.6 hPa
BSLM2 - Chesapeake Bay, MD 36 mi160 min Calm 1030 hPa
PPTM2 - 8578240 - Piney Point, MD 40 mi52 min W 6 G 7
44042 - Potomac, MD 41 mi34 min SW 7.8 G 14 32°F 42°F1030.8 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 44 mi160 min WSW 8.9 G 11 36°F 42°F1030.9 hPa
LWTV2 - 8635750 - Lewisetta, VA 46 mi58 min SW 2.9 G 4.1 30°F 41°F1030.8 hPa

Wind History for Cambridge, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cambridge-Dorchester Airport, MD4 mi85 minSSE 310.00 mi23°F15°F74%1030.8 hPa
Easton / Newman Field, MD15 mi66 minSSE 310.00 miFair26°F14°F62%1031.5 hPa

Link to 5 minute data for KCGE

Wind History from CGE (wind in knots)
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5CalmCalmCalmCalmCalmCalm
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Tide / Current Tables for Cambridge, Choptank River, Maryland
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Cambridge
Click for Map
Sat -- 03:04 AM EST     1.44 feet High Tide
Sat -- 06:32 AM EST     Moonrise
Sat -- 06:46 AM EST     Sunrise
Sat -- 09:33 AM EST     -0.19 feet Low Tide
Sat -- 03:40 PM EST     1.62 feet High Tide
Sat -- 04:56 PM EST     Moonset
Sat -- 05:49 PM EST     Sunset
Sat -- 10:18 PM EST     0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.611.31.41.41.10.70.40-0.2-0.200.40.91.31.61.61.51.20.80.50.20.10.1

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 -- 01:58 AM EST     0.40 knots Max Flood
Sat -- 05:00 AM EST     -0.00 knots Slack
Sat -- 06:33 AM EST     Moonrise
Sat -- 06:47 AM EST     Sunrise
Sat -- 08:02 AM EST     -0.47 knots Max Ebb
Sat -- 10:34 AM EST     0.00 knots Slack
Sat -- 01:52 PM EST     0.70 knots Max Flood
Sat -- 04:58 PM EST     Moonset
Sat -- 05:27 PM EST     -0.00 knots Slack
Sat -- 05:50 PM EST     Sunset
Sat -- 08:47 PM EST     -0.72 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.30.40.30.20-0.2-0.4-0.5-0.4-0.20.10.40.60.70.60.40.1-0.2-0.5-0.7-0.7-0.6-0.3

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (1,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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Disclaimer:
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.