Monday, February17, 2020
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L-36.com


Marine Weather and Tides
Blacksburg, SC

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 7:09AMSunset 6:11PM Monday February 17, 2020 6:59 AM EST (11:59 UTC) Moonrise 2:38AMMoonset 12:53PM Illumination 37% Phase: Third Quarter Moon; Moon at 23 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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AMZ450 Coastal Waters From Altamaha Sound To Fernandina Beach Fl Out 20 Nm- Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 157 Am Est Mon Feb 17 2020
Today..Northeast winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a light chop.
Tonight..East northeast winds 5 to 10 knots becoming southeast after midnight. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters smooth.
Tuesday..South southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Tuesday night..South winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Wednesday..West southwest winds 5 to 10 knots becoming north northeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Dominant period 6 seconds. Inland waters a light chop. A chance of showers.
Wednesday night..North northeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. A chance of showers.
Thursday..North northeast winds 20 to 25 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Showers.
Thursday night and Friday..North northeast winds 20 to 25 knots. Seas 7 to 10 feet with occasional seas up to 13 feet. Showers likely.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 157 Am Est Mon Feb 17 2020
Synopsis.. An area of low pressure offshore of the carolina coast will track northeast away from the local waters today. High pressure will build northeast of the region tonight then east of the area Tuesday. A weakening front approaches the area from the north late Wednesday. Strong high pressure builds north into Thursday with a return to advisory levels expected.
Gulf stream.. The approximate location of the west wall of the gulf stream as of feb 15, 2020 at 1200 utc... 66 nautical miles east of flagler beach. 75 nautical miles east of saint augustine beach. 86 nautical miles east of jacksonville beach. 99 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Kings Bay Base, GA
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location: 30.77, -81.48     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 171031 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 531 AM EST Mon Feb 17 2020

AVIATION. [Through 12Z Tuesday]

LIFR conditions due to low stratus and/or fog will continue this morning at the TAF sites. Conditions are forecast to improve to MVFR by the mid afternoon, with a few TAF sites possibly becoming VFR briefly in the late afternoon. IFR/LIFR cigs and vis are expected again this evening. A few showers are possible near the Duval County TAF sites this morning. Light winds this morning will become east northeast 5-10 knots this afternoon.

PREV DISCUSSION [249 AM EST].

NEAR TERM [Through Tonight].

Shortwave energy was kicking out to the east early this morning, and the upper level jet near the FL/GA border will weaken and briefly shift southward into north central Florida this morning. High clouds cleared across much of southeast Georgia early this morning, but low stratus and widespread dense fog remained in its wake due to the recent rainfall. A Dense Fog Advisory was issued for southeast Georgia and portions of northeast Florida until 14Z this morning. Elsewhere, patchy to areas of fog and broken low stratus prevailed underneath the cirrus deck. Isolated to widely scattered light showers/sprinkles were possible the rest of the night, but mostly dry conditions are expected to prevail. Temperatures were in the upper 40s to lower 50s across southeast Georgia, and the mid 50s to low 60s across northeast Florida.

A shortwave along the north central Gulf will lift northeastward towards the Florida Panhandle and Big Bend region by this evening, and then across southeast Georgia overnight. At the surface, a weak surface trough was across northeast Florida, and this feature will remain across north central Florida and the Big Bend region through the day today. An area of low pressure was east of the Carolinas, and the weak low will push off to the northeast today. A weak Gulf coast sea breeze will develop this afternoon, leading to isolated showers across the Suwannee Valley and western interior portions of the area. A northeasterly low level flow and mostly cloudy to cloudy skies will hold temperatures in the upper 60s to low 70s across southeast Georgia, and the low to mid 70s across northeast Florida. For north central Florida, temperatures will rise into the upper 70s to around 80 degrees.

An area of deeper moisture will lift east northeastward across the Florida Panhandle and into southeast Georgia tonight, with the surface boundary over the area lifting northward as a warm front into southeast Georgia. Rain chances will increase after midnight across interior southeast Georgia, with showers becoming likely near the Altamaha border by daybreak on Tuesday. Overnight lows will be mild in the mid 50s to around 60 degrees.

SHORT TERM [Tuesday Through Wednesday].

On Tuesday, a shortwave moves across southeastern Georgia as a cold front approaches the southeastern US. Showers and storms spread in across most of the area on Tuesday with the highest chances for rain over southeastern Georgia. The frontal boundary slowly dips southward on Wednesday keeping rain chances over most of the area. Prevailing southwesterly flow ahead of the cold front will advect in warm, moist air to the region. Temperatures will rise above average with highs in the 70s and 80s and lows in the upper 50s and low 60s.

LONG TERM [Thursday Through Sunday].

A cold front moves through on Thursday and exits the region by Friday. Widespread showers ahead of the front come to an end early Friday. On Friday, cold, dry air filters in behind the frontal passage as high pressure builds in from the northwest. Mainly dry conditions prevail for the end of the week. Some coastal showers may be possible this weekend. Temperatures drop after the frontal passage with lows dipping into the 30s and 40s for the end of the week.

MARINE.

A surface trough will remain just south of the waters today, with light northeasterly winds prevailing. The boundary will lift northward as a warm front this evening and into the southeast Georgia waters tonight. The boundary will then lift north of the waters by Tuesday morning. A cold front will move across the waters from the north Wednesday night and Thursday, with northeasterly winds 20-25 knots. Another strong cold front will then push through the waters late Thursday, and strong high pressure will build to the north. North to northeast winds 20-30 knots will then prevail through the end of the week.

HYDROLOGY.

Moderate river flooding continued for the Altamaha River basin.

PRELIMINARY POINT TEMPS/POPS.

AMG 68 56 74 60 73 / 50 40 50 50 50 SSI 65 57 72 60 71 / 20 10 40 30 40 JAX 72 59 80 62 80 / 10 10 40 30 30 SGJ 72 59 79 61 78 / 10 10 30 30 20 GNV 77 59 82 60 82 / 20 10 20 20 20 OCF 80 60 85 62 84 / 20 10 20 20 20

JAX WATCHES/WARNINGS/ADVISORIES. FL . Dense Fog Advisory until 9 AM EST this morning for Baker- Bradford-Clay-Coastal Duval-Coastal Nassau-Eastern Alachua- Gilchrist-Hamilton-Inland Duval-Inland Nassau-Inland St. Johns-Northern Columbia-Putnam-Southern Columbia-Suwannee- Union-Western Alachua.

GA . Dense Fog Advisory until 9 AM EST this morning for Appling- Atkinson-Bacon-Brantley-Clinch-Coastal Camden-Coastal Glynn- Coffee-Echols-Inland Camden-Inland Glynn-Jeff Davis- Northeastern Charlton-Northern Ware-Pierce-Southern Ware- Wayne-Western Charlton.

AM . Dense Fog Advisory until 9 AM EST this morning for Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDF1 - 8720030 - Fernandina Beach, FL 7 mi66 min 62°F 61°F1018.5 hPa
41112 - Offshore Fernandina Beach, FL (132) 11 mi60 min 61°F3 ft
BLIF1 26 mi66 min 58°F 1019 hPa58°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 26 mi66 min 58°F 61°F1018.5 hPa
DMSF1 27 mi66 min 62°F
LTJF1 27 mi66 min 58°F 58°F
NFDF1 27 mi66 min 52°F
SAXG1 - Sapelo Island Reserve, GA 46 mi60 min NNE 6 54°F 1019 hPa (+1.0)54°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 54 mi70 min N 14 G 16 56°F 59°F3 ft1018.6 hPa (+0.6)56°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gastonia Municipal Airport, NC20 mi66 minN 06.00 miFair with Haze38°F33°F83%1019.9 hPa
Rock Hill, Rock Hill - York County Airport, SC23 mi66 minN 04.00 miFog/Mist37°F35°F93%1020.2 hPa

Link to 5 minute data for KFHB

Wind History from FHB (wind in knots)
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Last 24hrNE4N5NE7E5E4CalmE3NE6N6CalmN10NW12NE4CalmSE12NW6NW3CalmN4NE4NE8NE8NE6NE7
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Tide / Current Tables for Seacamp Dock, Cumberland Island, Georgia
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Seacamp Dock
Click for Map
Mon -- 02:28 AM EST     Moonrise
Mon -- 03:51 AM EST     6.64 feet High Tide
Mon -- 07:05 AM EST     Sunrise
Mon -- 10:01 AM EST     0.59 feet Low Tide
Mon -- 01:03 PM EST     Moonset
Mon -- 04:02 PM EST     5.71 feet High Tide
Mon -- 06:14 PM EST     Sunset
Mon -- 10:06 PM EST     0.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.94.35.66.46.66.25.13.72.310.6123.24.55.45.75.44.53.21.90.80.30.6

Tide / Current Tables for Chester, Bells River, St. Marys River, Florida
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Chester
Click for Map
Mon -- 02:28 AM EST     Moonrise
Mon -- 04:07 AM EST     6.64 feet High Tide
Mon -- 07:05 AM EST     Sunrise
Mon -- 10:05 AM EST     0.62 feet Low Tide
Mon -- 01:03 PM EST     Moonset
Mon -- 04:18 PM EST     5.71 feet High Tide
Mon -- 06:15 PM EST     Sunset
Mon -- 10:10 PM EST     0.29 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.74.15.46.26.66.45.442.51.20.60.91.834.35.25.75.54.73.52.10.90.30.6

Weather Map
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wmap_A
GEOS Local Image of Southeast    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 Jacksonville, FL (6,6,7,8)
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Ground Weather Radar Station Jacksonville, FL
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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.