Monday, January27, 2020
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Marine Weather and Tides
California, 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 7:16AMSunset 5:24PM Monday January 27, 2020 11:23 PM EST (04:23 UTC) Moonrise 9:06AMMoonset 8:06PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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- 958 Pm Est Mon Jan 27 2020
.small craft advisory in effect from 3 am est Tuesday through Tuesday morning...
Rest of tonight..NW winds 10 kt with gusts to 20 kt. Waves 1 ft.
Tue..NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Tue night..NW winds 5 to 10 kt. Waves 1 ft.
Wed..NW winds 5 to 10 kt. Waves 1 ft.
Wed night..N winds 5 to 10 kt. Waves 1 ft.
Thu..NE winds 5 to 10 kt. Waves 1 ft.
Thu night..NE winds 5 kt. Waves less than 1 ft.
Fri..E winds around 5 kt. Waves 1 ft. A chance of rain and snow showers through the night.
Sat..W winds 5 to 10 kt. Waves 1 ft.
ANZ500 958 Pm Est Mon Jan 27 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Weak disturbances will pass over the area through Tuesday night. High pressure will build over the northern great lakes during the middle of the week as a cold front drops south from new england and low pressure passes well to the south near georgia.


7 Day Forecast for Marine Location Near California, MD
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location: 38.33, -76.51     debug


Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 280209 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 909 PM EST Mon Jan 27 2020

SYNOPSIS. A couple of weak disturbances will cross the region in northwest flow through Wednesday morning. High pressure will build over the northern Great Lakes during the middle of the week as a cold front drops south from New England and low pressure passes well to the south near Georgia. A larger area of low pressure may approach from the Southeast U.S. Friday night into Saturday.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/. The main forecast updates tonight revolve around cloud cover in the moist northwest flow, with nearly-solid overcast extending into Canada and back to the northern Plains. A shortwave trough/vorticity axis is pivoting across the area this evening. After that passes, it's possible there's enough subsidence to allow some clearing with south/eastward extent (with more of a downslope influence as well). However, am not convinced we return to totally clear skies any time soon, especially given RAP RH cross sections. Will be taking a look to see if low temperatures need to be adjusted upward any as a result, not to mention there could be a slight surface wind remaining through the night.

Other than a brief sprinkle, and precipitation should be limited along/west of the Allegheny Front in the upslope regime. Moisture depth is shallow, so accumulations should be minor. It also may mean there could be a bit of freezing drizzle/mist, but do not foresee widespread travel impacts at this time.

SHORT TERM /6 AM TUESDAY MORNING THROUGH WEDNESDAY NIGHT/. In general, high pressure will be building toward the area through the middle of the week. Embedded in northwest flow ahead of the high, however, will be another weak disturbance Tuesday. Drier air squashes any threat for precipitation east of the mountains (with minimal chances along the Allegheny Front).

Due to the continued northwesterly winds, temperatures should trend closer to, if not slightly below normal Tuesday through Wednesday night thanks to a dry backdoor cold front.

LONG TERM /THURSDAY THROUGH MONDAY/. High pressure should keep conditions cool and mainly dry Thursday through Friday, though a disturbance passing to the south could bring some light precipitation to the Allegheny highlands/I-81 corridor Thursday.

A low pressure system over the Southeast U.S. could impact the region Friday night through Saturday night. Confidence remains low at this time as to the scale of impact. The later model guidance suggests some wintry precipitation moving into the region Friday night and Saturday morning, then a secondary low pressure system from the west bringing a chance for a mix of rain and snow showers Saturday afternoon into Saturday night. The exact track of either or both of the low pressure systems remain highly uncertain.

The possibilities of a wintry impact range from a weak system suppressed far to our south with little to no precipitation across the region, to a major coastal low tracking either along the coast or out to sea. For now, we have low end chances for precipitation advertised throughout the weekend. We will monitor trends in the guidance throughout the week and gradually focus in on a solution as we move closer to the event.

For Sunday through Monday, it appears no matter what the track and outcome of the low pressure systems are, a milder and drier pattern appear to be in store with high pressure becoming established farther to the east in the U.S.

AVIATION /02Z TUESDAY THROUGH SATURDAY/. VFR ceilings FL040-080 will likely continue through much of the night and could occur at times through Tuesday in a moist northwest flow regime. There is a low chance (probably less than 20%) of brief MVFR conditions late tonight into Tuesday morning, mainly at MRB. It does seem like wind gusts should be diminishing for the night now, but will pick up again and gust to 15-20+ knots mid-morning (14-15Z) Tuesday.

VFR conditions are expected for Tuesday night through Friday night with NW flow becoming NE by late Thursday, generally at or below 10 knots.

MARINE. Northwesterly winds continue across the waters. There has been a a surge this evening with numerous (but generally brief) gusts up to 20-25 knots. It does appear the narrower waterways are beginning to stabilize nocturnally, confirming the brevity of the event. Will have to keep an eye on the wider waters for potential adjustments to the advisory, but will otherwise let the conditions described below prevail.

A weak disturbance will cross tonight, and with air temperatures cooling that component of mixing will not be as much of a factor. Therefore, anticipate more widespread/frequent gusts in excess of 20 knots from late this evening through Tuesday morning. The more sheltered waters of the middle and upper tidal Potomac River, Baltimore Harbor and the northern tip of the Chesapeake Bay may not have gusts quite as high or frequent due to narrower trajectories over water, so have opted to leave them out of the advisory for now. Winds may see a brief uptick over all marine zones right after daybreak Tuesday before the wind field diminishes Tuesday afternoon.

A second weak disturbance will cross tomorrow evening. Although the attendant wind field will be weaker, more of a northerly channeling component to the low-level flow could result in gusts in excess of 20 knots over the wider waters of the Chesapeake Bay.

Sub-SCA conditions are expected Wednesday through Friday night.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . None. VA . None. WV . None. MARINE . Small Craft Advisory from 3 AM to noon EST Tuesday for ANZ531- 532-539-540-542. Small Craft Advisory until noon EST Tuesday for ANZ533-534-537- 541-543.

SYNOPSIS . DHOF NEAR TERM . ADS SHORT TERM . DHOF LONG TERM . KLW AVIATION . ADS/KLW/DHOF MARINE . ADS/KLW/DHOF


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SLIM2 - 8577330 - Solomons Island, MD 3 mi53 min 43°F 42°F1010.2 hPa
PPTM2 - 8578240 - Piney Point, MD 14 mi65 min NNW 14 G 16
LWTV2 - 8635750 - Lewisetta, VA 23 mi59 min 44°F 42°F1010.5 hPa
44042 - Potomac, MD 23 mi29 min NW 14 G 16 42°F 43°F1010.7 hPa
BISM2 - 8571421 - Bishops Head, MD 26 mi53 min 43°F 44°F1010 hPa
NCDV2 28 mi59 min 44°F 45°F1010.1 hPa
CA2 - 8571892 - Cambridge, MD 29 mi59 min 42°F 42°F1010.1 hPa
BSLM2 - Chesapeake Bay, MD 33 mi113 min NNW 1.9 1010 hPa
TPLM2 - Thomas Point, MD 40 mi23 min W 8.9 G 9.9 41°F 40°F1011.2 hPa (+0.9)30°F
APAM2 - 8575512 - Annapolis, MD 45 mi53 min 42°F 1009.7 hPa
CPVM2 46 mi53 min 42°F
WASD2 - 8594900 - Washington, DC 46 mi53 min 43°F 40°F1010.9 hPa

Wind History for Solomons Island, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St Marys County Airport, MD2 mi36 minW 4 miOvercast41°F30°F66%1011.2 hPa
Patuxent River, Naval Air Station, MD6 mi31 minNNW 1110.00 miOvercast44°F32°F63%1010.5 hPa
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD14 mi30 minNW 710.00 miOvercast47°F30°F52%1010.4 hPa

Link to 5 minute data for K2W6

Wind History from 2W6 (wind in knots)
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Last 24hrCalmCalmCalmCalmSW3CalmCalmCalmSW3W5W3W4W6W10
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W7W6CalmNW3NW3NW5NW5W4W3
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmSW4SW4W4NW5CalmW4W8W5W3CalmCalmCalmCalmCalmCalm
2 days agoE6
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Tide / Current Tables for Solomons Island, Patuxent River, Maryland
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Solomons Island
Click for Map
Mon -- 03:27 AM EST     0.86 feet High Tide
Mon -- 07:15 AM EST     Sunrise
Mon -- 09:05 AM EST     Moonrise
Mon -- 09:50 AM EST     -0.32 feet Low Tide
Mon -- 04:12 PM EST     0.95 feet High Tide
Mon -- 05:22 PM EST     Sunset
Mon -- 08:06 PM EST     Moonset
Mon -- 10:27 PM EST     -0.12 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.50.70.80.80.70.40.2-0.1-0.3-0.3-0.20.10.40.60.90.90.90.70.50.30-0.1-0.1

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

Mon -- 01:00 AM EST     0.39 knots Max Flood
Mon -- 03:24 AM EST     -0.00 knots Slack
Mon -- 06:53 AM EST     -0.57 knots Max Ebb
Mon -- 07:15 AM EST     Sunrise
Mon -- 09:05 AM EST     Moonrise
Mon -- 10:26 AM EST     0.00 knots Slack
Mon -- 12:47 PM EST     0.53 knots Max Flood
Mon -- 03:25 PM EST     -0.00 knots Slack
Mon -- 05:22 PM EST     Sunset
Mon -- 07:31 PM EST     -0.97 knots Max Ebb
Mon -- 08:06 PM EST     Moonset
Mon -- 11:54 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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0.20.40.30.1-0.2-0.4-0.5-0.6-0.5-0.3-0.10.20.50.50.40.1-0.2-0.5-0.8-0.9-1-0.8-0.6-0.3

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Baltimore, MD/Washington (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 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.