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Marine Weather and Tides
Version 3.4 |
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name. |
| Sunrise 7:15AM | Sunset 5:14PM | Thursday January 24, 2019 5:51 AM EST (10:51 UTC) | Moonrise 9:37PM | Moonset 9:50AM | Illumination 87% |  |
ANZ530 Chesapeake Bay North Of Pooles Island- 540 Am Est Thu Jan 24 2019
.gale warning in effect through this afternoon...
.small craft advisory in effect from this evening through late tonight...
Today..S winds 20 kt...becoming W this afternoon. Gusts up to 35 kt. Waves 2 to 3 ft...except around 1 ft near the mouth of the susquehanna. Rain, mainly this morning with vsby 1 nm or less.
Tonight..W winds 15 to 20 kt with gusts to 30 kt... Diminishing to 10 kt with gusts to 20 kt after midnight. Waves 1 to 2 ft.
Fri..W winds 15 to 20 kt with gusts to 30 kt. Waves 1 to 2 ft.
Fri night..NW winds 10 to 15 kt. Gusts up to 25 kt in the evening. Waves 1 to 2 ft.
Sat..W winds 5 to 10 kt...becoming S in the afternoon. Waves 1 ft.
Sat night..S winds 5 to 10 kt. Waves 1 ft.
Sun..W winds 5 to 10 kt. Waves 1 ft.
Mon..W winds 5 kt...becoming se. Waves 1 ft.
.gale warning in effect through this afternoon...
.small craft advisory in effect from this evening through late tonight...
Today..S winds 20 kt...becoming W this afternoon. Gusts up to 35 kt. Waves 2 to 3 ft...except around 1 ft near the mouth of the susquehanna. Rain, mainly this morning with vsby 1 nm or less.
Tonight..W winds 15 to 20 kt with gusts to 30 kt... Diminishing to 10 kt with gusts to 20 kt after midnight. Waves 1 to 2 ft.
Fri..W winds 15 to 20 kt with gusts to 30 kt. Waves 1 to 2 ft.
Fri night..NW winds 10 to 15 kt. Gusts up to 25 kt in the evening. Waves 1 to 2 ft.
Sat..W winds 5 to 10 kt...becoming S in the afternoon. Waves 1 ft.
Sat night..S winds 5 to 10 kt. Waves 1 ft.
Sun..W winds 5 to 10 kt. Waves 1 ft.
Mon..W winds 5 kt...becoming se. Waves 1 ft.
ANZ500 540 Am Est Thu Jan 24 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front over the ohio valley will cross the waters this afternoon as low pressure passes through the region. A reinforcing front will push through the waters on Friday, with high pressure transiting the area through the weekend. Small craft advisories are likely Friday and Friday night, and may be required Saturday night and Sunday.
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front over the ohio valley will cross the waters this afternoon as low pressure passes through the region. A reinforcing front will push through the waters on Friday, with high pressure transiting the area through the weekend. Small craft advisories are likely Friday and Friday night, and may be required Saturday night and Sunday.
7 Day Forecast for Marine Location Near Elkton, MD
Hourly EDIT Helplocation: 39.57, -75.85 debug
Area Discussion for - Philadelphia/Mount Holly, PA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kphi 241017 afdphi area forecast discussion national weather service mount holly nj 517 am est Thu jan 24 2019 Synopsis A surface low in southern quebec will lift northeast today, and a cold front extending to its south will move through the mid-atlantic and offshore by this evening. Another low in the great lakes tonight will move into southeast canada, allowing a reinforcing cold front to move through the area on Friday. High pressure builds into the eastern u.S. This weekend. Another cold front moves through the region Sunday night and Monday, but may return as a warm front on Tuesday. Another surface low will move from the great lakes to the northeast by the middle of next week, with an attendant cold-frontal passage anticipated for the mid-atlantic. Near term until 6 pm this evening Rain is beginning to pick up across the area, especially west of the fall line. Have tweaked pops through 6 am to account for latest trends. Forecast is mostly on track for a heavy rain strong wind event today. Made some minor edits to the forecast, but the general setup looks similar to past forecasts. The main change was a somewhat slower progression of the cold front through the area, which results in slightly higher QPF than previous forecasts. A strong surface low in quebec will lift northeast today, with a south-southwest extending cold front sweeping through the northeast and mid-atlantic during the day. Very strong low-level warm moist advection will occur in advance of the front, with sustained deep large-scale lift aided by the presence of the right-entrance region of an anticyclonic and intense (180+-kt) 250-mb jet streak and differential cyclonic vorticity advection downstream of a deep strong midlevel trough reaching the appalachians by 12z. With an unusually moist troposphere (pws ~1.5 inches by mid-morning; off- the-charts climatologically), a period of moderate to heavy rain appears probable across the whole area this morning into the early afternoon. Hi-res models continue to simulate, nearly universally, a fairly intense, frontally-forced line of convection embedded within the broader shield of rain. Instability looks meager at best, so lightning will be scarce and possibly nonexistent. The bigger story will be the heavy rain rates within the shield of rain, particularly with the aforementioned frontally-forced line. With consensus model QPF generally 1-1.5 inches (slightly higher north of i-78), suspect most of this rain will occur in a 1-3 hour period. Given the cold ground, wet antecedent conditions, and responses to previous events (which were longer-duration lighter- rain-rate events), a few instances of urban and small-stream flooding look probable within the current flood watch. Cannot rule out an instance or two of flash flooding, given the convective look to the precipitation just in advance of the front. The primary limitation is the progressive nature of the precipitation line. Given that precipitation is struggling to develop well downstream of the front so far tonight (allowing for saturation of soils before the main event), the progressive nature of the front may preclude a more widespread flood threat. However, models are trending a little slower with the frontal passage, so this limitation may be countered to some degree. The other issue will be the winds, both in advance of the front and with its passage. Mixing will continue downstream of the front this morning, with models hinting at widespread gusts 35-45 mph with a few gusts higher than that. Hi-res models look overdone (a result of a systematic bias of mixing too readily in these flow regimes), but the strength of the low-level jet (50-80+ kts) certainly suggests the possibility of some stronger wind gusts. My suspicion, however, is the strongest wind gusts will occur with and just in advance of the frontally-forced line of precipitation, with negative buoyancy effects allowing for enhanced downward momentum transfer. Whatever the causal mechanisms, strong wind gusts for a time are a good bet, with the current wind advisory unchanged at this time. Temperatures will continue to surge in advance of the precipitation, but the cold front will move through during the afternoon, with temps dews falling thereafter. Winds will switch to the northwest and may continue to be gusty for a time. Precipitation should shut off quickly upstream of the front, but may linger in the far northern CWA a little longer, where switchover to some snow showers cannot be ruled out (though this probability looks lower than at this time yesterday). Used a heavy dose of hi-res model guidance for temperatures through the day, as statistical bias-corrected guidance is expected to verify poorly in such a rapidly-changing meteorological regime. Short term 6 pm this evening through 6 pm today Secondary low pressure develops just to our east northeast tonight while lifting into new england. The cold front will be well offshore this evening, with northwest winds diminishing fairly steadily overnight. An upstream low in the great lakes will pivot northeastward to far southwest quebec by 12z Friday, as an attendant vort MAX reaches new york pennsylvania. The strongest lift with this system will be well north and west of the area (through the end of the period), so expecting dry conditions across the CWA (though cannot completely rule out some flurries in the southern poconos). Temperatures will be dropping, which will be rather unwelcome to those who appreciated the brief warm spell. Went on the colder side of guidance, though not by much since I am expecting winds to stay somewhat elevated. Lows should be in the 20s basically everywhere, except near the coast, where low 30s are forecast. Temps may be colder than forecast in the pine barrens and rural locations northwest of philly if winds become light variable. Long term tonight through Wednesday Overview... Most of this period will be dominated by a broad, deep trough centered over the east-central u.S. Over the coming week. Little movement of this trough is expected, therefore a cold pattern can be expected. Several short wave troughs will pivot around this trough, mainly during the Saturday-Sunday and Monday-Tuesday timeframe. The exact tracks and development of these features will largely determine the extent of any precipitation that will occur. While it does look to be a progressive pattern, the extent to which these shortwaves interact with the long-wave trough remains somewhat uncertain. Guidance has been fairly consistent with the overall pattern it paints into next week. This pattern will feature several chances for weaker storms, possibly with accumulating snow, however, no significant winter storms appear on our horizon at this point. Friday and Saturday... As noted in the previous discussion, this will likely be the quietest portion of the long term forecast. Most of the region will sit in the wake of the cold front that will move across the area later today, thus cold, but dry weather should prevail. Highs look to be roughly 5-10 degrees below average. A very weak disturbance moving out of the great lakes could lead to a few snow flurries to showers in the poconos, however confidence is not great enough to include these in the grids at this time. The first of the main shortwave troughs moves to our north Saturday night, thus the chance for snow showers increases across the northern portion of the forecast area. Some mixing with rain is possible across the central portions of the area. Sunday night-Monday... A surface low, driven by the aforementioned shortwave trough moves up the saint lawrence river and high pressure attempts to build toward our area out of the northwest. A lot of spread on temperatures at this range as baroclinicity looks strong over the east, with very cold air not far to the north but much warmer not far south and our region likely caught in between. Took a blend approach for temperatures, thus yielding highs roughly 5 degrees below average. Monday night-Wednesday... Confidence decreases further here. Decent agreement on a clipper low moving through the lingering trough and approaching Monday night or Tuesday, with some discrepancies on its exact track. We look to have a decent chance of precipitation, likely in the form of light snow to the |
north, and possibly rain to the south. However, some form of coastal redevelopment could also occur and introduce more complications, such as the ECMWF tries to suggest. Plenty of time to iron this out and as usual for this range keeping details limited for now. Disagreement continues into Wednesday, with the GFS suggesting another clipper-type low will move across the northeast, while the ECMWF holds off on this, keeping us cold, but dry. The second half of next week does look pretty cold at any rate, with highs staying well below average by Thursday and lows in the teens and single digits across much of the cwa. Aviation 10z Thursday through Monday The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, kmiv, kacy and surrounding areas. Rest of tonight... Deteriorating conditions to MVFR through the remainder of the night. South winds 10-15 knots initially, with higher gusts up to 30 knots possible, especially southwest of kphl and closer to daybreak. Winds should remain on the lighter side tonight from 5-10 knots at krdg and kabe. Southwesterly llws is also present across the terminals tonight, generally around 45-55 knots. Thursday... Ifr restrictions will continue through at least early afternoon, with rain (heavy at times). Southwesterly llws will also continue through the morning, being the strongest at kacy. Conditions are expected to improve rapidly during the afternoon with the passage of a cold front.VFR is possible late into the day. Southwest winds 10 to 20 kts with higher gusts possibly up to 40 knots before the frontal passage. Timing of the frontal passage looks to be from 14-18z across the area from west to east. Winds should take a more northwesterly direction after the front passes through. Outlook... Friday... MainlyVFR with west to northwest winds around or below 10 kts. High confidence. Saturday and Sunday... Generally,VFR conditions expected. Winds generally below 15 knots. A cold front may bring rain and or snow showers, thus possibly lowering visibilities and bringing restrictions, especially at krdg and kabe. Moderate confidence. Monday-Wednesday... MainlyVFR conditions expected. Winds generally 5-10 knots. Will need to watch the potential for a storm system late Tuesday into Wednesday as higher winds and lower flight restrictions may ensue. Marine Upgraded lower delaware bay and the delaware atlantic waters to a gale warning, given occasional gusts to 35 kts occurring at lewes and dewey beach the past couple of hours. Winds are decidedly lower elsewhere, so the small craft advisory continues in these areas through 6 am. For today... There is about a 3-6 hour window where winds may increase to gale force across the whole area. This looks to be within and just in advance of a band of precipitation moving through late this morning and early this afternoon. The band of precipitation will likely have embedded convection. This, in particular, is troublesome because of the very strong winds present aloft. Though low-level thermodynamic profiles are not entirely favorable for efficient mixing, the strength of the winds aloft suggests potential exists for a short period of gales. Gusts may reach 40-45 kts, particularly within and near any convection. After the front passes by mid afternoon, winds will switch to northwest and may gust to gale force briefly before diminishing steadily thereafter. Advisory-level winds should continue through the evening but will likely diminish overnight. Seas will be quite elevated on the atlantic today, rising to 9 to 15 feet by midday before subsiding slowly thereafter. They should remain above 5 feet through tonight, so a small craft advisory will be required once the gale warning expires or is canceled. Outlook... Friday... SCA conditions may be possible with winds approaching 20 knots and gusts above 25 knots. Seas around 4-6 feet. Saturday and Sunday... Sub-sca conditions expected. Winds should stay below 15 knots and seas staying between 2-4 feet. Hydrology A flood watch remains through this afternoon from the lehigh valley and northwest new jersey southeastward to the i-95 295 corridors. A cold front will move through the area during the day. A round of rain, moderate to heavy at times, has developed in advance of the front and is beginning to spread into the area early this morning. Expected storm totals are generally from 1 to 1.5 inches, with locally higher amounts possible. Normally, these totals would not be forecast to produce much flooding. However, a number of factors suggest an elevated threat exists... 1) antecedent wet conditions, including from the rainfall this past weekend. 2) relatively cold soils, aided by the arctic air that spread across the region the past couple of days. 3) the expectation of most of this rain occurring in a three-to-six hour period. With higher rain rates expected during a portion of the event, especially just in advance of the frontal passage, additional runoff will be generated, which could lead to flooding of particularly sensitive spots (e.G., urban areas and quickly- responding creeks and streams). 4) light to moderate rain occurring for a few hours before the heaviest rainfall occurs, which may act to saturate soils sufficiently for efficient runoff during the most intense rainfall. An isolated instance of flash flooding is possible, especially if the heaviest rainfall (and high rainfall rates) occurs along the urban corridor or atop smaller stream creek basins that respond rapidly to runoff. River flooding cannot be ruled out, especially on the passaic, rockaway, north branch rancocas, and millstone rivers, if the axis of heaviest rainfall intersects these basins. Phi watches warnings advisories Pa... Flood watch through this afternoon for paz061-062-070-071- 101>106. Nj... Flood watch through this afternoon for njz001-007>010-012>020- 026-027. Wind advisory until noon est today for njz013-014-020>027. De... Flood watch through this afternoon for dez001. Wind advisory until noon est today for dez002>004. Md... Flood watch through this afternoon for mdz008. Wind advisory until noon est today for mdz012-015-019-020. Marine... Small craft advisory until 6 am est early this morning for anz430-450>453. Gale warning until 1 pm est this afternoon for anz430-450>453. Gale warning until 1 pm est this afternoon for anz431-454-455. Synopsis... Cms near term... Cms short term... Cms long term... Davis aviation... Davis marine... Cms davis hydrology... Cms kruzdlo |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| CHCM2 - 8573927 - Chesapeake City, MD | 4 mi | 52 min | S 7 G 20 | 58°F | 34°F | 1004.6 hPa (-5.0) | ||
| DELD1 - 8551762 - Delaware City, DE | 14 mi | 52 min | SSE 7 G 12 | 52°F | 32°F | 1004.9 hPa (-4.8) | ||
| MRCP1 - 8540433 - Marcus Hook, PA | 28 mi | 52 min | 53°F | 35°F | 1004.9 hPa (-5.0) | |||
| SJSN4 - 8537121 - Ship John Shoal, NJ | 31 mi | 52 min | SSE 19 G 20 | 44°F | 35°F | 1005.9 hPa (-4.6) | ||
| TCBM2 - 8573364 - Tolchester Beach, MD | 32 mi | 52 min | S 12 G 26 | 55°F | 34°F | 1003.9 hPa (-5.1) | ||
| DRSD1 - Delaware Reserve, DE | 40 mi | 142 min | SSE 12 | 59°F | 1008 hPa | 55°F | ||
| FSKM2 - 8574728 - Francis Scott Key Bridge, MD | 43 mi | 52 min | SSE 18 G 20 | 49°F | 1003 hPa (-5.2) | |||
| FSNM2 | 43 mi | 58 min | S 16 G 25 | 51°F | 1002.9 hPa | |||
| BLTM2 - 8574680 - Baltimore, MD | 44 mi | 52 min | SSW 5.1 G 8.9 | 50°F | 37°F | 1003.2 hPa | ||
| PHBP1 - 8545240 - Philadelphia, PA | 45 mi | 52 min | 56°F | 34°F | 1005.1 hPa (-4.6) | |||
| CPVM2 | 49 mi | 52 min | 51°F | 51°F |
Wind History for Chesapeake City, MD
(wind in knots) EDIT (on/off) Help| 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | |
| Last 24hr | S G7 | SW | S G6 | S G7 | S | S | SW G10 | SW G16 | SW G8 | S G16 | S G14 | SW G4 | NE | SE | E | S G15 | S G14 | S G12 | SW G10 | SW G15 | S G15 | S G18 | S G19 | S G20 |
| 1 day ago | N | NW | NW G10 | N G10 | NW | NW | N G8 | W | NW | SW | SW G6 | SW | SE | S | S | SE | -- | SE | SE | SE | S | S G8 | S G8 | S |
| 2 days ago | NW G25 | NW G21 | NW G18 | NW G22 | NW G21 | NW G32 | NW G27 | NW G27 | NW G21 | NW G26 | NW G28 | NW G24 | NW G17 | NW G14 | NW G19 | NW G15 | NW G17 | NW G13 | NW G13 | NW G12 | NW G11 | NW G13 | W G10 | NW |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Wilmington, New Castle County Airport, DE | 15 mi | 61 min | SSE 16 | 4.00 mi | Rain Fog/Mist | 51°F | 48°F | 92% | 1005.2 hPa |
Wind History from ILG (wind in knots)
| 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | |
| Last 24hr | S | S | S | S | SE | S | S | SW | SW G18 | S | SW | SW | SW | SE | SE | S | S | S | SE | S G19 | S G19 | S | S | S |
| 1 day ago | NW | NW | W | N | NW | Calm | SE | SE | S | S | S | S | S | S | S | S | S | S | S | S | ||||
| 2 days ago | NW G31 | NW G34 | NW G35 | NW G33 | NW G35 | NW G36 | NW G39 | NW G35 | NW G35 | NW G32 | NW G29 | NW G31 | NW | NW | NW G26 | NW G34 | NW G22 | NW | NW G26 | NW G21 | W | NW | NW G20 |
Tide / Current Tables for Old Frenchtown Wharf, Maryland
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of DataOld Frenchtown Wharf
Click for Map
Thu -- 06:31 AM EST -0.52 feet Low Tide
Thu -- 07:17 AM EST Sunrise
Thu -- 09:49 AM EST Moonset
Thu -- 11:56 AM EST 1.77 feet High Tide
Thu -- 05:13 PM EST Sunset
Thu -- 06:08 PM EST -0.91 feet Low Tide
Thu -- 09:36 PM EST Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 06:31 AM EST -0.52 feet Low Tide
Thu -- 07:17 AM EST Sunrise
Thu -- 09:49 AM EST Moonset
Thu -- 11:56 AM EST 1.77 feet High Tide
Thu -- 05:13 PM EST Sunset
Thu -- 06:08 PM EST -0.91 feet Low Tide
Thu -- 09:36 PM EST Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 2.7 | 2.4 | 1.8 | 1.2 | 0.5 | -0.1 | -0.5 | -0.5 | -0.1 | 0.5 | 1.1 | 1.6 | 1.8 | 1.5 | 1 | 0.4 | -0.2 | -0.7 | -0.9 | -0.8 | -0.3 | 0.4 | 1.3 | 2 |
Tide / Current Tables for Chesapeake and Delaware Canal, Maryland/Delaware Current
EDIT (on/off) Help One Week of DataChesapeake and Delaware Canal
Click for Map
Thu -- 12:35 AM EST -0.08 knots Slack
Thu -- 03:12 AM EST -1.83 knots Max Ebb
Thu -- 06:23 AM EST 0.02 knots Slack
Thu -- 07:17 AM EST Sunrise
Thu -- 09:27 AM EST 2.08 knots Max Flood
Thu -- 09:49 AM EST Moonset
Thu -- 12:03 PM EST -0.10 knots Slack
Thu -- 03:25 PM EST -2.25 knots Max Ebb
Thu -- 05:13 PM EST Sunset
Thu -- 07:04 PM EST 0.09 knots Slack
Thu -- 09:36 PM EST Moonrise
Thu -- 10:05 PM EST 2.29 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 12:35 AM EST -0.08 knots Slack
Thu -- 03:12 AM EST -1.83 knots Max Ebb
Thu -- 06:23 AM EST 0.02 knots Slack
Thu -- 07:17 AM EST Sunrise
Thu -- 09:27 AM EST 2.08 knots Max Flood
Thu -- 09:49 AM EST Moonset
Thu -- 12:03 PM EST -0.10 knots Slack
Thu -- 03:25 PM EST -2.25 knots Max Ebb
Thu -- 05:13 PM EST Sunset
Thu -- 07:04 PM EST 0.09 knots Slack
Thu -- 09:36 PM EST Moonrise
Thu -- 10:05 PM EST 2.29 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 1.1 | -0.9 | -1.6 | -1.8 | -1.7 | -1.3 | -0.7 | 1 | 1.6 | 2 | 2 | 1.6 | 0.4 | -1.4 | -1.9 | -2.2 | -2.2 | -1.9 | -1.4 | -0.4 | 1.4 | 2 | 2.3 | 2.1 |
Weather Map and Satellite Images
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GOES 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 Philadelphia/Mount Holly, PA (5,6,7,8)
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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 numerious 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. |