Thursday, July29, 2021
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Marine Weather and Tides
Sawgrass, FL

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:41AMSunset 8:22PM Thursday July 29, 2021 4:58 PM EDT (20:58 UTC) Moonrise 11:09PMMoonset 11:05AM Illumination 70% Phase: Waning Gibbous; Moon at 20 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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AMZ452 Expires:202107300915;;659486 Fzus52 Kjax 292021 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 421 Pm Edt Thu Jul 29 2021 Atlantic Coastal Waters From Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm. Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves, Along With The Occasional Height Of The Average Highest 1/10 Of The Waves. Amz450-452-454-300915- 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- 421 Pm Edt Thu Jul 29 2021
Tonight..South winds 5 to 10 knots becoming southwest after midnight. Seas 2 to 3 feet with a dominant period 8 seconds. Mostly smooth on the intracoastal waters.
Friday..Southwest winds 5 to 10 knots becoming south 10 to 15 knots in the afternoon. Seas 2 to 3 feet with a dominant period 8 seconds. A moderate chop on the intracoastal waters.
Friday night..Southwest winds 10 to 15 knots. Seas 2 to 3 feet with a dominant period 7 seconds. A light chop on the intracoastal waters.
Saturday..Southwest winds 10 to 15 knots becoming south in the afternoon. Seas 2 to 3 feet. A moderate chop on the intracoastal waters. Slight chance of showers and Thunderstorms in the afternoon.
Saturday night..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. A light chop on the intracoastal waters. Slight chance of showers and Thunderstorms in the evening.
Sunday..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. A moderate chop on the intracoastal waters. Chance of showers and slight chance of Thunderstorms.
Sunday night..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Chance of showers and Thunderstorms.
Monday..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Showers and Thunderstorms likely.
Monday night..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Chance of showers and Thunderstorms.
Tuesday..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Showers and slight chance of Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 421 Pm Edt Thu Jul 29 2021
Synopsis.. High pressure will persist south of the local waters through the weekend. A cold front will approach the waters from the north early next week bringing an increase in winds and rain chances.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jul 29, 2021 at 1200 utc... 63 nautical miles east northeast of flagler beach. 67 nautical miles east of saint augustine beach. 70 nautical miles east of jacksonville beach. 76 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Sawgrass, FL
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location: 30.19, -81.36     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 291808 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 208 PM EDT Thu Jul 29 2021

AVIATION. [Through 18Z Friday]

Restrictions due to passing showers and inland storms will be most probable at CRG, VQQ and GNV this afternoon, with the more persistent restrictions at GNV into early evening. Convection will tapper off this evening with dry conditions overnight. Light ESE winds with the east coast sea breeze will continue into the evening, then winds decrease and back SSW with the land breeze toward daybreak Friday. With drier mid and upper level air in place, better radiational cooling conditions will enable late night and early morning fog and low stratus to form in some areas through 12z Friday. At this time, indicated the potential for restrictions to MVFR at GNV and VQQ after 08z. VFR conditions develop after sunrise Fri with a low chance of TSRA near GNV in the afternoon.

PREV DISCUSSION [954 AM EDT].

NEAR TERM [Today through Tonight]. Patchy early morning fog is possible over inland se Ga as high cloudiness shifts south and skies clear. A strong ridge aloft centered over the central U.S. will build into the se states today. Dry air aloft and subsidence will spread into south Georgia along the ridge axis which will keep se Ga dry today. A surface trough moving south across ne Fl and seabreezes moving inland will help produce scattered to numerous showers and thunderstorms this afternoon over inland areas of ne Fl. A weak steering flow and PWATs at 2+" will again result in areas of locally heavy rainfall this afternoon mainly south of the I-10 corridor. Hot and humid conditions will continue with heat indices reaching near 105F this afternoon. Convection will die out this evening with humid conditions overnight.

SHORT TERM. /Friday through Sunday/ . Through this period, a subtropical high pressure ridge center remains centered well into the Atlantic with associated ridge axis suppressed across the southern FL peninsula while a frontal zone remains situated northwest of the region. This patten will provide for a southwest flow regime, with the Gulf sea breeze most active as it pushes inland through the day. The east coast sea breeze will struggle to get much past I95 during the afternoons this period due to the southwest flow. With this pattern will focus greatest convective chances inland on the Gulf sea breeze.

On Friday, for this time of year, precipitable water values will be lower than normal due to the northwesterly flow aloft. PWATS Friday will be between 1.45 and 1.55 north of I-10 with best moisture over north central FL with values between 1.55 and 1.75 inches. This is where isolated to scattered storms will occur along the west coast sea breeze.

On Saturday, a predominant westerly wind will persist through the profile with pwat values increasing between 1.75 and 1.95 inches, which will equate to widely scattered to scattered showers across the region.

On Sunday, moisture levels slightly with PWATs increasing to above 2 inches as a stronger frontal boundary moves into northern Georgia. This will allow an open stream of Gulf moisture to stream into the region with scattered showers and thunderstorms with coverage more numerous over interior southeast Georgia and Suwannee Valley.

Friday into this weekend we look to have hot and muggy days with heat indices peaking out between 107 and 112 each afternoon (advisory range) with highs in the mid to upper 90s as dewpoints remain in the muggy mid to upper 70s without much mixing out of moisture in the afternoon. Drink plenty of water, wear loose fitting clothing, check on pets and the elderly and those without air conditioning. Be mindful of work/rest cycles as well and spend time in shade or air conditioning and seek medical help if experiencing symptoms of heat stress/exhaustion.

LONG TERM. /Sunday night through Wednesday/ . Another upper trough and weak frontal boundary moves into the southeast U.S. for the first part of next week. This will push the ridge over southern Florida once again and also bring increasing moisture to the region. The Gulf sea breeze being most active, as east coast sea breeze largely remains pinned near the coast due to southwest flow. Above normal chances (likely to categorical) for convection this period, mainly in the afternoon and evening hours. Toward midweek, there is increased shear across the region, particularly across SE GA with some stronger to marginally severe weather possible. Temperatures will trend near normal at night. Highs will trend from near normal Monday to a little below normal Tuesday and Wednesday.

MARINE.

Light west winds this morning 10 kts or less will become ESE this afternoon with the east coast sea breeze. Combined seas generally 2 ft or less, with 3 ft seas at times over the outer waters.

Rip Currents: Low rip current risk today.

FIRE WEATHER.

Low daytime dispersion today across inland NE FL and portions of the Okefenokee NWR near the meandering surface trough.

HYDROLOGY.

The Santa Fe and St. Marys river basins continued in Minor Flood.

PRELIMINARY POINT TEMPS/POPS.

AMG 73 98 77 96 76 / 0 10 0 40 10 SSI 77 95 80 96 80 / 0 0 0 20 10 JAX 74 96 77 97 78 / 10 10 0 30 10 SGJ 74 94 77 95 77 / 10 10 0 30 10 GNV 73 93 76 94 76 / 20 30 0 30 10 OCF 73 93 76 94 76 / 20 40 0 30 10

JAX WATCHES/WARNINGS/ADVISORIES. FL . None. GA . None. AM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTJF1 14 mi58 min 85°F 77°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 15 mi58 min ESE 8 G 9.9 84°F 84°F1016.4 hPa (-1.3)
BLIF1 16 mi58 min E 8 G 12 87°F 1015.8 hPa (-1.2)84°F
DMSF1 17 mi58 min 86°F
BKBF1 18 mi58 min 81°F 1015.8 hPa (-1.1)
41117 20 mi58 min 83°F 85°F1 ft
NFDF1 20 mi58 min E 11 G 12 87°F 1015.4 hPa (-1.3)80°F
SAUF1 - St. Augustine, FL 24 mi58 min SE 9.9 G 11 83°F 86°F1016.3 hPa (-1.2)76°F
FRDF1 - 8720030 - Fernandina Beach, FL 34 mi58 min SE 5.1 G 11 91°F 85°F1015.9 hPa (-1.5)
41112 - Offshore Fernandina Beach, FL (132) 36 mi58 min 83°F 87°F2 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 37 mi73 min SE 6 86°F 1017 hPa79°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Craig Municipal Airport, FL13 mi65 minE 610.00 miPartly Cloudy89°F77°F68%1015.7 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL14 mi66 minSSE 710.00 miA Few Clouds88°F79°F75%1015.8 hPa
Northeast Florida Regional Airport, FL15 mi62 minE 810.00 miFair87°F78°F75%1016 hPa
Jacksonville Naval Air Station, FL17 mi65 minESE 810.00 miPartly Cloudy82°F75°F79%1015.2 hPa

Link to 5 minute data for KCRG

Wind History from CRG (wind in knots)
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Last 24hrE4S13
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S10W6NW3S3SW3SW3SW4W3CalmS3CalmCalmW3NW43W44NE4E7NE8E7E6
1 day agoSE6SW7SW7SE4S3SW3SW3CalmCalmCalmCalmSW5SW5W3NW7W4W3W5N10NW7
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2 days agoW6NW7W3S3S6S4S4S4CalmSW7S5SW4SW3SW4SW3CalmW5W3N4N5W12W9W9SW4

Tide / Current Tables for Palm Valley, ICWW, Florida
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Palm Valley
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Thu -- 03:19 AM EDT     2.01 feet High Tide
Thu -- 06:42 AM EDT     Sunrise
Thu -- 09:06 AM EDT     -2.31 feet Low Tide
Thu -- 12:05 PM EDT     Moonset
Thu -- 03:47 PM EDT     1.48 feet High Tide
Thu -- 08:20 PM EDT     Sunset
Thu -- 09:24 PM EDT     -2.12 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.51.21.721.91.30.4-0.6-1.7-2.3-1.9-0.9-0.10.511.41.51.10.4-0.3-1.2-2-1.9-1

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
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Thu -- 02:56 AM EDT     -0.00 knots Slack
Thu -- 05:54 AM EDT     -1.86 knots Max Ebb
Thu -- 06:42 AM EDT     Sunrise
Thu -- 09:38 AM EDT     0.00 knots Slack
Thu -- 12:05 PM EDT     Moonset
Thu -- 12:16 PM EDT     1.95 knots Max Flood
Thu -- 03:28 PM EDT     -0.00 knots Slack
Thu -- 06:24 PM EDT     -1.69 knots Max Ebb
Thu -- 08:21 PM EDT     Sunset
Thu -- 10:11 PM EDT     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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1.81.61-0.1-1.2-1.8-1.9-1.8-1.4-0.70.41.41.91.81.40.5-0.6-1.4-1.7-1.7-1.5-1.1-0.20.8

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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