Tuesday, January21, 2020
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Marine Weather and Tides
Brunswick, GA

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 7:22AMSunset 5:52PM Tuesday January 21, 2020 11:33 AM EST (16:33 UTC) Moonrise 4:34AMMoonset 3:05PM Illumination 13% Phase: Waning Crescent; Moon at 26 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- 855 Am Est Tue Jan 21 2020
.small craft advisory in effect until 2 pm est this afternoon...
.gale warning in effect from 2 pm est this afternoon through Wednesday afternoon...
Rest of today..North winds 20 to 25 knots with a few gusts to gale force this morning increasing to 25 to 30 knots with gusts to around 40 knots this afternoon. Seas 5 to 7 feet with occasional seas up to 9 feet building to 6 to 9 feet with occasional seas up to 11 feet in the afternoon. Dominant period 6 seconds. Inland waters rough.
Tonight..North winds 25 to 30 knots with gusts to around 40 knots. Seas 7 to 10 feet with occasional seas up to 13 feet. Dominant period 8 seconds. Inland waters very rough.
Wednesday..North winds 25 to 30 knots with gusts to around 40 knots. Seas 8 to 11 feet with occasional seas up to 14 feet. Dominant period 11 seconds. Inland waters very rough.
Wednesday night..North northeast winds 20 to 25 knots with gusts to around 35 knots. Seas 7 to 10 feet with occasional seas up to 13 feet. Dominant period 10 seconds. Inland waters rough. A chance of showers.
Thursday..Northeast winds 15 to 20 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. Dominant period 11 seconds. Inland waters choppy. A chance of showers.
Thursday night..East northeast winds 10 to 15 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. A chance of showers.
Friday..South southeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. A chance of showers.
Friday night and Saturday..West northwest winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. A chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 855 Am Est Tue Jan 21 2020
Synopsis.. Northerly winds will surge today and tonight between high pressure to the northwest and low pressure to the southeast. High pressure will move north of the area waters on Wednesday. On Thursday, high pressure will move to the northeast and the low pressure system to the east will slowly move eastward into the atlantic. A low pressure system will track from the northern gulf of mexico Friday morning to the northeast by Sunday morning.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jan 20, 2020 at 1200 utc... 63 nautical miles east of flagler beach. 68 nautical miles east of saint augustine beach. 76 nautical miles east of jacksonville beach. 89 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Brunswick, GA
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location: 31.14, -81.52     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 211425 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 925 AM EST Tue Jan 21 2020

UPDATE.

Hazards Update: The first Freeze Warning was cancelled and replaced by a new Freeze Warning for tonight for temperatures in the mid 20s to lower 30s. The Freeze Warning is in effect from Midnight to 10 am for everywhere except coastal Duval to Coastal Flager in northeast Florida. A Wind Chill Advisory was issued for all of northeast Florida tonight and Wednesday morning for wind chills of 15-25 degrees as winds are forecast to remain elevated. There is Elevated Fire Danger for the I-10 corridor of northeast Florida this afternoon for winds around 15 mph with gusts to 25 mph and RH values of 25-30%. A High Surf Advisory is in effect for the northeast Florida Beaches tonight through Thursday afternoon for rough surf of 7-10 feet. A Coastal Flood Statement is in effect for the Wednesday morning high tide cycle along the coast of northeast Florida. Elevated water levels are expected and isolated very minor coastal flooding is possible. A Small Craft Advisory remains in effect until 2 pm this afternoon, and then a Gale Warning will be in effect from 2 pm through 4 pm on Wednesday.

Cold temperatures were observed across the area this morning, with lows in the mid 20s to mid 30s across the interior and mid 30s to around 40F at the coast. Winds starting increasing before daybreak this morning, and temperatures felt like the low 20s to low 30s across much of the area. Temperatures were beginning to warm above freezing, but they will remain cool in the mid 40s to lower 50s today. An upper low across south central Georgia this morning will dive south southeastward and off the coast of northeast Florida by this evening, and then just north of the northwest Bahamas by Wednesday morning. An area of low pressure will begin to develop this afternoon and evening northeast of the Bahamas, and the pressure gradient will increase further, and drive even drier and cooler air into the area this afternoon and tonight. Windy conditions, rough surf, and dangerous rip currents are expected at the beaches tonight through the day on Wednesday. Temperatures tonight are forecast to be the coldest since 2018, with lows in the mid 20s to lower 30s across the area and wind chills 15 to 25 degrees.

PREV DISCUSSION [529 AM EST].

NEAR TERM [Through Tonight].

Currently, strong high pressure over the Upper Midwest is bringing cold air advection over the region under mostly clear skies early this morning with many interior parts of SE GA and NE FL at or below freezing. A Freeze Warning is in effect until late this morning for all of SE GA including the coast and also for inland portions of NE FL.

Today, a mid level shortwave trough will be swinging through region from the southeast and this feature will help bring a reinforcing shot of colder air into the area this afternoon and evening. As it does so, elevated winds around 20 to 25 mph near the coast with gusts of 30 to 35 mph are expected with lighter winds around 10 to 20 mph farther inland. Some clouds associated with the shortwave trough will will be common over the area this afternoon, filtering sunshine and helping to keep daytime highs in the 40s for SE GA, inland NE FL, with readings around 50 degrees at the NE FL coast with low 50s over north central Florida. Tonight, temperatures will fall quickly as skies clear with the shortwave passing southeast of our area which will create a surface low just north of the Bahamas and enhance the local pressure gradient over the region. This will keep the the cold air advection in place and lows will fall into the upper 20s for inland areas, low 30s along the SE GA coast with low to mid 30s along the NE FL coast. A freeze watch is effect for NE FL and also for SE GA where there may be pockets of areas inland falling to the mid 20s where a hard freeze may be locally possible. Winds around 20 to 25 mph at the coast and 15-20 mph inland will make apparent temperatures feel about 10 degrees colder. A wind chill advisory may need to be posted for late this evening for areas from Brunswick to Jacksonville south to Gainesville towards the coast. Overnight lows will be a little colder into Wednesday morning as the strong high pressure moves to our north over the Mid Atlantic region.

SHORT TERM [Wednesday Through Thursday].

Wednesday . As surface high pushes into the Carolinas expect surface winds to become North to Northeast and this will push temps slightly higher into the lower to middle 50s but still well below normal and winds still elevated at 10-15 mph inland and 15 to 25 mph at the Atlc Coast. The onshore flow will bring clouds inland off the Atlc and possibly a few showers along the NE FL coast south of St Augustine at times.

Wednesday Night . Surface flow becomes Northeast and the flow off the Atlc will bring in more clouds and modify the airmass with no significant freeze expected as temps bottom out in the 30s over inland areas and in the 40s along the coast and St Johns River Basin. A few showers will continue to be possible along the NE FL coast from JAX southward pushing into the St Johns River Basin at times.

Thursday . Onshore flow weakens slightly but steering flow shifts to the Southeast and this warmer airmass will over-ride the cooler airmass at the surface to produce widespread cloudiness as shower activity pushes further northward along all of the SE GA/NE FL coastal areas and inland to the US 301 corridor by the afternoon hours. The abundant clouds will hold Max Temps down in the mid/upper 50s across SE GA and lower/middle 60s for NE FL, slightly warmer than Wednesday and closer to climo values.

Thursday Night . Increasing moisture in SW flow aloft from the Gulf of Mexico will continue to override the cooler airmass at the surface and scattered showers will break out across inland areas as well during the overnight hours. The clouds and increased rainfall chances will hold overnight lows closer to climo values in the 40s/50s.

LONG TERM [Friday Through Tuesday].

Friday . Long range models continue to trend slightly faster with area of low pressure tracking out of the Gulf and across the region and will provide at least scattered to numerous shower activity through the daytime hours and ending Friday Night. As winds become southerly during the day expect temps to climb back above normal values into the upper 60s/lower 70s and only falling back into the 40s on the back side of the low pressure system on Friday Night. Rainfall amounts don't look high with this system, mainly in the 0.10-0.25" range, possibly higher if the system ends up stronger than currently forecast.

Sat/Sun/Mon . High pressure builds in from the West and a general West to Northwest steering flow is expected through the period with mainly dry conditions and seasonable temps with Highs in the 60s and Lows in the 30s inland and 40s along the coast. Some frost may be possible each night over inland areas but a widespread freeze is not expected at this time.

AVIATION. [Through 12Z Wednesday]

VFR conditions expected through the end of the period. A few to scattered low level clouds may intrude off the Atlantic towards CRG and SGJ after 15Z as guidance shows some low level ceilings lingering just off the NE FL coast, but confidence is low for MVFR ceilings making it to those TAF sites. Northerly winds will be highest at JAX, CRG, SSI and SGJ with speeds around 14-18 knots and gusts to 24-26 knots. The higher wind gusts should persist after 00Z for SGJ and SSI. Northerly winds over inland TAF sites will be lower after 15Z to 10-12 knots with gusts to 18-20 knots subsiding by 00Z.

MARINE.

A Gale Warning will be in effect this afternoon through Wednesday afternoon as winds surge between High pressure to the northwest and low pressure to the southeast with a chance of showers. High pressure will move north of the area waters on Wednesday with low pressure east of the waters keeping winds and seas elevated with showers likely. On Thursday, high pressure will move to our northeast and the low pressure system the east will slowly move eastward into the Atlantic with winds relaxing through the day and seas remaining elevated and a likely chance of showers. A low pressure system will track from the northeast Gulf of Mexico to the northeast Friday into Saturday with showers likely. High pressure will build in from the west on Saturday.

A High surf advisory may need to be posted this evening into Wednesday for the NE FL coast as the surf height is expected to increase to 7 to 9 feet on Wednesday. A coastal flood statement may also be needed for the upcoming high tide cycle on Wednesday morning for the NE FL coast as northerly to northeasterly onshore winds combine with the New Moon to possibly raise tide levels in those areas into action stage and nearing Minor Flood stage.

Rip Currents: Moderate for for NE FL and SE GA beaches today with a High Risk of rip current expected on Wednesday for NE FL and SE GA Beaches.

FIRE WEATHER.

Humidities to fall into the upper 20s and 30s this afternoon across the region with North Winds in the 10 to 15 mph range, but forecast ERC values remain in the lower to middle 20s across the region so Red Flag conditions are not expected this afternoon, also models are trending lower with daytime highs this afternoon, so humidities may not fall as low as expected.

PRELIMINARY POINT TEMPS/POPS.

AMG 48 27 52 33 56 / 0 0 0 0 0 SSI 47 32 53 42 57 / 0 0 0 0 10 JAX 50 30 55 42 62 / 0 0 0 0 20 SGJ 51 36 57 49 65 / 0 0 10 10 30 GNV 51 28 56 41 65 / 0 0 0 0 10 OCF 52 27 58 43 68 / 0 0 0 0 10

JAX WATCHES/WARNINGS/ADVISORIES. FL . Freeze Warning from midnight tonight to 10 AM EST Wednesday for Baker-Bradford-Central Marion-Clay-Coastal Nassau-Eastern Alachua-Eastern Marion-Gilchrist-Hamilton-Inland Duval- Inland Flagler-Inland Nassau-Inland St. Johns-Northern Columbia-Putnam-Southern Columbia-Suwannee-Union-Western Alachua-Western Marion.

Wind Chill Advisory from midnight tonight to 10 AM EST Wednesday for Baker-Bradford-Central Marion-Clay-Coastal Duval- Coastal Flagler-Coastal Nassau-Coastal St. Johns-Eastern Alachua-Eastern Marion-Gilchrist-Hamilton-Inland Duval- Inland Flagler-Inland Nassau-Inland St. Johns-Northern Columbia-Putnam-Southern Columbia-Suwannee-Union-Western Alachua-Western Marion.

High Surf Advisory from 7 PM this evening to 4 PM EST Thursday for Coastal Duval-Coastal Flagler-Coastal Nassau-Coastal St. Johns.

GA . Freeze Warning from midnight tonight to 10 AM EST Wednesday 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 . Small Craft Advisory until 2 PM EST this afternoon for 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-Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM-Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM.

Gale Warning from 2 PM this afternoon to 4 PM EST Wednesday for 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-Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM-Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDF1 - 8720030 - Fernandina Beach, FL 32 mi45 min NNW 12 G 19 46°F 58°F1027.5 hPa
41112 - Offshore Fernandina Beach, FL (132) 32 mi33 min 60°F6 ft
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 39 mi43 min N 23 G 29 41°F 59°F6 ft1026.7 hPa (+1.5)31°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick, Malcolm McKinnon Airport, GA7 mi40 minN 14 G 2210.00 miFair42°F21°F43%1028.1 hPa
Brunswick / Glynco, GA9 mi58 minN 13 G 2110.00 miFair39°F19°F45%1028.4 hPa

Link to 5 minute data for KSSI

Wind History from SSI (wind in knots)
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2 days ago5E6E6E5E5E5SE4--S6S8S9S8S11
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Tide / Current Tables for Brunswick, East River, Georgia
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Brunswick
Click for Map
Tue -- 04:34 AM EST     Moonrise
Tue -- 06:13 AM EST     7.55 feet High Tide
Tue -- 07:23 AM EST     Sunrise
Tue -- 12:32 PM EST     -0.09 feet Low Tide
Tue -- 03:04 PM EST     Moonset
Tue -- 05:51 PM EST     Sunset
Tue -- 06:23 PM EST     6.52 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.30.423.95.777.57.36.44.93.11.20.1012.64.35.76.56.45.54.22.50.9

Tide / Current Tables for St. Johns River Entrance, Florida Current (3)
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St. Johns River Entrance
Click for Map
Tue -- 01:57 AM EST     0.00 knots Slack
Tue -- 04:33 AM EST     Moonrise
Tue -- 04:48 AM EST     2.78 knots Max Flood
Tue -- 07:22 AM EST     Sunrise
Tue -- 08:09 AM EST     -0.01 knots Slack
Tue -- 11:26 AM EST     -1.82 knots Max Ebb
Tue -- 02:55 PM EST     0.00 knots Slack
Tue -- 03:05 PM EST     Moonset
Tue -- 05:14 PM EST     1.90 knots Max Flood
Tue -- 05:51 PM EST     Sunset
Tue -- 08:05 PM EST     -0.00 knots Slack
Tue -- 11:06 PM EST     -1.89 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.4-0.901.52.52.82.41.50.2-0.9-1.5-1.8-1.8-1.6-10.11.31.91.81.20.1-1-1.7-1.9

Weather Map
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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.
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Wind Forecast for Jacksonville, FL (11,2,3,4)
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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.