Friday, February21, 2020
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Marine Weather and Tides
Kent Narrows, 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 6:48AMSunset 5:50PM Friday February 21, 2020 10:58 AM EST (15:58 UTC) Moonrise 5:58AMMoonset 3:57PM Illumination 5% 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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ANZ539 Chester River To Queenstown Md- 938 Am Est Fri Feb 21 2020
.small craft advisory in effect until 11 am est this morning...
Rest of today..N winds 10 to 15 kt with gusts to 20 kt... Becoming nw 5 kt late. Waves 1 to 2 ft.
Tonight..W winds 5 to 10 kt. Waves 1 ft.
Sat..SW winds 10 kt. Waves 1 ft.
Sat night..W winds 5 to 10 kt. Waves 1 ft or less.
Sun..SW winds 5 to 10 kt. Waves 1 ft or less.
Sun night..S winds 5 to 10 kt. Waves 1 ft.
Mon..S winds 5 to 10 kt. Waves 1 ft. Rain likely through the night.
Tue..SW winds 5 to 10 kt...becoming N after midnight. Waves 1 ft. Showers likely through the day, then a chance of showers through the night.
ANZ500 938 Am Est Fri Feb 21 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 Kent Narrows, MD
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location: 38.97, -76.25     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 211430 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 930 AM EST Fri Feb 21 2020

SYNOPSIS. High pressure slowly builds across the region today and through the weekend before exiting Sunday afternoon. Low pressure will track through the Mississippi Valley early in the week towards New England by Wednesday. A deeper and more intense low pressure system will develop by the middle of next week tracking into the Saint Lawrence Valley towards the end of the week and looks to impact the region.

NEAR TERM /UNTIL 6 PM THIS EVENING/. High pressure extending from the southern Great Plains to the Ohio River Valley this morning will continue to build to the east. We are anticipating an abundance of sunshine for today with two minor exceptions.

A weakening cloud streamer off Lake Ontario extended southward over parts of Monroe County around 9:00 AM. It should continue to dissipate as the northerly flow lessens during the balance of the morning. Also, there was a deck of stratocumulus off our coast. It was due to the cold northerly flow passing over the relatively warm ocean waters. That area of clouds should also begin to erode as the northerly flow decreases.

Today's high temperatures are expected to favor the middle and upper 30s in northeastern Maryland, Delaware, New Jersey, southeastern Pennsylvania and the Lehigh Valley. Readings should not get above freezing in the elevated terrain of the Poconos and far northern New Jersey.

SHORT TERM /6 PM THIS EVENING THROUGH 6 AM SATURDAY/. Really not much change in the weather this evening as the center of high pressure tracks over the intersection of TN/GA/AL. With the high tracking just to the south anticipate light westerly flow and a better chance of the winds decoupling Friday night. Overnight lows should fall to the teens to low 20s.

LONG TERM /SATURDAY THROUGH THURSDAY/. High pressure builds through the weekend leading to quiet weather under mostly clear skies. As the flow becomes more southern and western, the area will start to have a warming trend with highs increasing to above normal and increasing about 3-5 degrees each day. By Monday, anticipate temps in the low to mid 50s. We may see some high clouds filter through over the weekend but with low level (1000mb-700mb) RH's progs less than 30% I dont think it will amount to any sort of low or mid level clouds.

High pressure finally starts to break down Monday night as the center of the high drifts offshore. A weak upper level shortwave starts to track through the central plains with a low pressure system tracking through Missouri Monday afternoon. The low then tracks quickly to the north and east and ends up moving towards the Saint Lawrence Valley on Tuesday. This brings a warm front into the Mid Atlantic along with some modest rainfall. With surface temps in the mid to upper 40s there's almost a nil chance any wintry precip will fall over NJ or DelMarVa.

A stronger upper level trough will follow that low pressure system as a vort max tracks into the Carolinas with some decent 850mb FGEN. The low will undergo fairly rapid cyclogensis deepening from 1008mb Wednesday to 980mb centered over Lake Ontario. This should bring widespread precipitation to the region, which as of right now would be mostly rain in the warm sector. Time will tell for that system but on the surface the late week system looks significantly stronger than the early week system.

AVIATION /14Z FRIDAY THROUGH TUESDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Today . VFR under a mostly clear sky. North wind 10 to 15 knots, becoming northwest 5 to 10 knots. High confidence.

Tonight . VFR. Southwest wind less than 10 kts. High confidence.

Outlook . Friday night . VFR. Southwest wind less than 10 kts. High confidence.

Saturday . VFR. West wind around 10 knots. High confidence.

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

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. South 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.

MARINE. Small Craft Advisory conditions will continue as northerly winds of 20 to 25 kts with gusts near 30 kts eventually subside this afternoon.

Sub-SCA conditions are expected tonight as winds become westerly 10 to 15 kts and seas of 1 to 3 feet.

Outlook .

Saturday through Saturday night . Sub-SCA conditions expected through the period 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 15 kts or less.

Wednesday and Wednesday night . SCA conditions expected with southerly 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 . Small Craft Advisory until 4 PM EST this afternoon for ANZ452>455. Small Craft Advisory until noon EST today for ANZ430-431-450- 451.



Synopsis . Deal Near Term . Iovino Short Term . Deal Long Term . Deal Aviation . Deal Marine . Deal


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CPVM2 8 mi64 min 27°F
TPLM2 - Thomas Point, MD 11 mi58 min N 15 G 16 25°F 41°F1035.7 hPa (+1.8)8°F
APAM2 - 8575512 - Annapolis, MD 12 mi64 min 27°F 1034.6 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 17 mi64 min N 13 G 16 26°F 41°F1035.3 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 23 mi64 min N 11 G 15 25°F 1035.2 hPa
FSNM2 23 mi70 min N 12 G 19 26°F 1034.3 hPa
BLTM2 - 8574680 - Baltimore, MD 27 mi64 min NNE 13 G 17 26°F 41°F1034.7 hPa
BSLM2 - Chesapeake Bay, MD 28 mi148 min N 7 1034 hPa
CA2 - 8571892 - Cambridge, MD 29 mi64 min NNE 12 G 16 27°F 41°F1034.3 hPa
44062 - Gooses Reef, MD 30 mi52 min N 16 G 18 27°F 1034.6 hPa
WASD2 - 8594900 - Washington, DC 41 mi64 min N 6 G 11 29°F 43°F1035.7 hPa
CHCM2 - 8573927 - Chesapeake City, MD 45 mi64 min N 8.9 G 14 26°F 41°F1034.8 hPa
SLIM2 - 8577330 - Solomons Island, MD 46 mi64 min N 14 G 20 28°F 43°F1034.1 hPa

Wind History for Tolchester Beach, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bay Bridge Field, MD4 mi73 minNNE 11 G 1710.00 miPartly Cloudy27°F8°F46%1034.9 hPa
Annapolis, United States Naval Academy, MD12 mi2.1 hrsN 12 G 2210.00 miFair27°F10°F51%1034.8 hPa
Easton / Newman Field, MD15 mi68 minN 10 G 1610.00 miA Few Clouds30°F10°F43%1035.6 hPa

Link to 5 minute data for KW29

Wind History from W29 (wind in knots)
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Last 24hrNE4N4N7NW5N3N3Calm--NE4NE5N7
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2 days agoS7S8S9S9S11S10S6S5S5S4CalmCalmCalmW3NW3NW8NW12NW7N8
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Tide / Current Tables for Kent Island Narrows, Maryland
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Kent Island Narrows
Click for Map
Fri -- 03:02 AM EST     0.78 feet High Tide
Fri -- 05:57 AM EST     Moonrise
Fri -- 06:49 AM EST     Sunrise
Fri -- 09:37 AM EST     -0.32 feet Low Tide
Fri -- 03:57 PM EST     Moonset
Fri -- 04:14 PM EST     1.28 feet High Tide
Fri -- 05:48 PM EST     Sunset
Fri -- 11:11 PM EST     0.07 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.50.70.80.70.50.30.1-0.2-0.3-0.3-0.20.10.50.91.21.31.21.10.90.60.40.20.1

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Fri -- 01:19 AM EST     0.00 knots Slack
Fri -- 03:50 AM EST     0.54 knots Max Flood
Fri -- 05:58 AM EST     Moonrise
Fri -- 06:30 AM EST     -0.00 knots Slack
Fri -- 06:49 AM EST     Sunrise
Fri -- 09:27 AM EST     -0.63 knots Max Ebb
Fri -- 12:09 PM EST     0.00 knots Slack
Fri -- 03:46 PM EST     1.06 knots Max Flood
Fri -- 03:57 PM EST     Moonset
Fri -- 05:48 PM EST     Sunset
Fri -- 07:10 PM EST     -0.00 knots Slack
Fri -- 10:26 PM EST     -1.00 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.5-0.10.20.50.50.40.2-0.2-0.4-0.6-0.6-0.4-0.10.40.711.10.90.50.1-0.4-0.8-1-1

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 Philadelphia/Mount Holly, PA (10,2,3,4)
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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.