Monday, January20, 2020
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Marine Weather and Tides
Fishing Creek, 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 7:14AMSunset 5:12PM Monday January 20, 2020 6:13 AM EST (11:13 UTC) Moonrise 3:26AMMoonset 1:40PM Illumination 23% Phase: Waning Crescent; Moon at 25 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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ANZ534 Chesapeake Bay From Drum Point To Smith Point- 337 Am Est Mon Jan 20 2020
.small craft advisory in effect through Tuesday morning...
Rest of the overnight..NW winds 20 kt with gusts to 30 kt. Waves 4 ft.
Today..N winds 15 to 20 kt with gusts to 30 kt. Waves 4 ft.
Tonight..N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
Tue..N winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft.
Tue night..N winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft.
Wed..N winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves 3 ft...subsiding to 1 ft in the afternoon.
Wed night..NE winds 5 to 10 kt. Waves 1 ft.
Thu..NE winds 5 kt. Waves less than 1 ft.
Fri..E winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain through the night.
ANZ500 337 Am Est Mon Jan 20 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build eastward from the northern plains during the first half of the week, then move offshore during the second half of the week. A small craft advisory may be needed for portions of the waters Tuesday night.


7 Day Forecast for Marine Location Near Fishing Creek CDP, MD
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location: 38.27, -76.23     debug


Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 200857 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 357 AM EST Mon Jan 20 2020

SYNOPSIS. An expansive area of high pressure will translate eastward from the northern Plains during the first half of the week, becoming centered overhead by Wednesday. The high will move offshore during the second half of the week, then low pressure will approach from the central United States for Saturday.

NEAR TERM /THROUGH TONIGHT/. Strong Arctic high pressure is located over the northern Plains this morning. A trough axis is moving southward from Pennsylvania. Once this trough axis moves through, any remaining upslope snow showers will likely taper to flurries and end by early afternoon as moisture becomes shallow. For the rest of the area, there is little significance other than some passing clouds and continued gusty winds. Those winds are producing wind chills in the teens (or lower) this morning, and these values will fail to rise above the 20s for many areas today. Air temperatures will top out in the 30s for most, while staying in the teens/20s at increasing elevation.

The surface high will build toward the Ohio Valley tonight. The best radiational cooling conditions will be in the western valleys where the gradient will be weaker. Given projected dew points, a few single digits could occur in these locations, but most of the area will be in the teens, with 20s in the cities and close to the tidal waters.

SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/. Upper troughing will gradually lose its influence Tuesday and Wednesday, allowing the surface high to spread eastward. Ridging aloft will be overhead by Wednesday. Dry conditions are expected, and other than a batch or two of passing cirrus, skies should be mainly clear as well. Daytime highs will moderate a bit each day, with 40s becoming common again by Wednesday. Winds will become less of a factor as well. Lows will respond more slowly given favorable radiational cooling conditions continuing. Teens and 20s are expected both Tuesday and Wednesday nights.

LONG TERM /THURSDAY THROUGH SUNDAY/. High pressure will be in control on Thursday while mid to upper level trough deepens over the central CONUS, resulting in a mid- level cut-off low by Friday. At the surface, low pressure system will develop, but it is uncertain on location as deterministic and ensemble means develop it either over the Midwest or over the Tennessee Valley. This is followed by an ENE track that will increase the chances of precipitation over our region Friday night. The low pressure will then either move over us from the SW or will transfer its energy from the Great Lakes into a coastal low on Saturday. Either solution brings precipitation in form or rain or snow (mainly over higher elevations) between Friday night and Saturday night as the low deepens offshore. The low will move away from us Saturday night into Sunday with some lingering precipitation. Sunday night into Monday guidance suggests a shortwave trough could bring us some additional precipitation.

AVIATION /08Z MONDAY THROUGH FRIDAY/. Gusty northwest winds will continue through day, with peak gusts in the 20-25 kt range. As a trough axis crosses, some ceilings around FL040 could occur but should be brief overall. Winds will diminish this evening and remain AOB 10 kt through the middle of the week as high pressure builds into the area. VFR conditions are also expected through this time, and clouds in general will be few and far between after this morning.

VFR conditions expected Thursday into Friday with high pressure in control. Sub-VFR conditions could begin Friday night with a low pressure impacting our region and remaining into Saturday night.

MARINE. Gusty northwest winds are continuing today, resulting in blowout tides (-1 ft MLLW or lower) this morning from Annapolis northward. Given a trough axis crossing, winds remain elevated at this early hour, and the Small Craft Advisory remains in effect for all waters through noon today. It's possible this could be extended into the afternoon, but didn't feel confident to make such a small adjustment at this time.

A tight pressure gradient across the Bay will result in continued gusty northerly winds tonight, with the advisory continuing for the wider waters south of Pooles Island, including the lower tidal Potomac. Have this advisory ending at 10 AM Tuesday as high pressure gets closer and winds diminish. There's some potential an advisory could be needed through portions of Tuesday night (with or without a gap Tuesday afternoon) for the wider waters near southern Maryland due to continued northerly channeling. The high will be overhead by Wednesday, with light winds prevailing through Wednesday night.

Sub-SCA conditions expected Thursday into late Friday with high pressure in control. SCA conditions possible Friday night into Saturday night.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . None. VA . None. WV . None. MARINE . Small Craft Advisory until 10 AM EST Tuesday for ANZ531>534- 537-539>543. Small Craft Advisory until 6 PM EST this evening for ANZ530- 538. Small Craft Advisory until noon EST today for ANZ535-536.

SYNOPSIS . ADS NEAR TERM . ADS SHORT TERM . ADS LONG TERM . IMR AVIATION . ADS/IMR MARINE . ADS/IMR


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BISM2 - 8571421 - Bishops Head, MD 11 mi62 min 26°F 32°F1023.1 hPa
SLIM2 - 8577330 - Solomons Island, MD 12 mi56 min 26°F 43°F1023 hPa
44042 - Potomac, MD 17 mi38 min NW 19 G 21 27°F 44°F1023.4 hPa
PPTM2 - 8578240 - Piney Point, MD 19 mi86 min NNW 24 G 28
CA2 - 8571892 - Cambridge, MD 23 mi62 min 29°F 40°F1022.2 hPa
LWTV2 - 8635750 - Lewisetta, VA 23 mi62 min 27°F 40°F1023.6 hPa
BSLM2 - Chesapeake Bay, MD 43 mi164 min NW 7 1022 hPa
NCDV2 43 mi62 min 25°F 43°F1023.7 hPa
TPLM2 - Thomas Point, MD 45 mi74 min WNW 14 G 17 26°F 41°F1024 hPa (+1.6)11°F
44058 - Stingray Point, VA 49 mi86 min WSW 21 G 23 45°F1026.2 hPa

Wind History for Bishops Head, MD
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Patuxent River, Naval Air Station, MD9 mi82 minNNW 20 G 3010.00 miFair and Breezy27°F12°F55%1022.7 hPa
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD14 mi21 minNW 11 G 1610.00 miFair28°F12°F51%1023.4 hPa
St Marys County Airport, MD17 mi27 minWNW 6 miPartly Cloudy25°F12°F59%1024.4 hPa
Cambridge-Dorchester Airport, MD21 mi29 minNNW 17 G 2610.00 miOvercast27°F12°F54%1023 hPa

Link to 5 minute data for KNHK

Wind History from NHK (wind in knots)
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Last 24hrNW6W6W5--NW20NW15NW16NW18NW19NW22
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1 day agoSE74S6SE4S5S10SE8S6S9
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N15N14N11N12N9N7N8NE6NE7NE5E6NE6NE6E6E6NE3E4E3

Tide / Current Tables for Hooper Island Light, Chesapeake Bay, Maryland
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Hooper Island Light
Click for Map
Mon -- 03:24 AM EST     -0.62 feet Low Tide
Mon -- 03:25 AM EST     Moonrise
Mon -- 07:18 AM EST     Sunrise
Mon -- 10:23 AM EST     1.63 feet High Tide
Mon -- 01:39 PM EST     Moonset
Mon -- 05:13 PM EST     Sunset
Mon -- 05:21 PM EST     -0.06 feet Low Tide
Mon -- 10:03 PM EST     0.80 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.2-0.2-0.4-0.6-0.6-0.400.61.11.41.61.61.41.10.80.40.1-0-00.20.50.70.80.7

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
Mon -- 12:54 AM EST     -0.00 knots Slack
Mon -- 03:26 AM EST     Moonrise
Mon -- 04:32 AM EST     -0.47 knots Max Ebb
Mon -- 07:10 AM EST     0.00 knots Slack
Mon -- 07:19 AM EST     Sunrise
Mon -- 10:45 AM EST     0.83 knots Max Flood
Mon -- 01:40 PM EST     Moonset
Mon -- 02:41 PM EST     -0.00 knots Slack
Mon -- 05:13 PM EST     Sunset
Mon -- 05:59 PM EST     -0.69 knots Max Ebb
Mon -- 09:30 PM EST     0.00 knots Slack
Mon -- 11:33 PM EST     0.24 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.1-0-0.2-0.3-0.5-0.5-0.3-0.10.30.60.80.80.70.50.2-0.1-0.4-0.6-0.7-0.6-0.4-0.10.10.2

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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Wind Forecast for Baltimore, MD/Washington (6,6,7,8)
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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 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.