Friday, September24, 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 7:14AMSunset 7:20PM Friday September 24, 2021 3:17 AM EDT (07:17 UTC) Moonrise 8:37PMMoonset 9:29AM Illumination 92% Phase: Waning Gibbous; Moon at 18 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:202109242200;;090491 Fzus52 Kjax 240634 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 234 Am Edt Fri Sep 24 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. Amz450-452-454-242200- 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- 234 Am Edt Fri Sep 24 2021
Today..Northeast winds increasing to around 15 knots. Seas 3 to 4 feet with a dominant period of 10 seconds. Becoming a moderate chop on the intracoastal waters.
Tonight..Northeast winds 10 to 15 knots. Seas 3 to 4 feet with a dominant period of 9 seconds. A light chop on the intracoastal waters.
Saturday..Northeast winds around 10 knots. Seas 3 to 4 feet with a dominant period of 8 seconds. A light chop on the intracoastal waters.
Saturday night..Northeast winds 5 to 10 knots, becoming north after midnight. Seas 2 to 3 feet. Mostly smooth on the intracoastal waters.
Sunday..North winds 5 to 10 knots, becoming northeast around 10 knots in the afternoon. Seas 2 to 3 feet. Becoming a light chop on the intracoastal waters.
Sunday night..East winds 5 to 10 knots, becoming north around 5 knots after midnight. Seas 2 to 3 feet.
Monday..North winds 5 to 10 knots, becoming east around 10 knots in the afternoon. Seas 2 to 3 feet.
Monday night..Southeast winds 5 to 10 knots, becoming south around 5 knots after midnight. Seas 2 to 3 feet.
Tuesday..North winds around 5 knots, becoming east around 10 knots in the afternoon. Seas 2 to 3 feet.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 234 Am Edt Fri Sep 24 2021
Synopsis.. A weak trough sliding southward across our waters today will result in strengthening northeasterly winds through the late afternoon hours. Otherwise, high pressure centered over the tennessee valley and the southern appalachians will briefly weaken tonight and Saturday, followed by another high pressure center settling over the southeastern states and also gradually weakening during the early portions of next week. High pressure will then shift offshore of the carolinas towards midweek ahead of a weak cold front pushing southward down the u.s. Eastern seaboard late next week.
Gulf stream.. The approximate location of the west wall of the gulf stream as of sep 23, 2021 at 1200 utc... 62 nautical miles east of flagler beach. 70 nautical miles east of saint augustine beach. 82 nautical miles east southeast of jacksonville beach. 95 nautical miles east northeast 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 240716 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 316 AM EDT Fri Sep 24 2021

. UNSEASONABLY DRY WEATHER CONTINUES INTO NEXT WEEK .

CURRENTLY.

Overnight surface analysis depicts high pressure (1020 millibars) blanketing the southeastern states. Meanwhile, the strong cold front that passed through our region last night was decelerating as it crosses Lake Okeechobee Aloft. deep troughing was pivoting north-northeastward across the Great Lakes region, with the base of this long wave trough progressing eastward across the Deep South. An unseasonably cool and dry air mass continues to filter into our region per latest GOES-East derived Total Precipitable Water imagery, which indicates that PWATS are near or below one half inch for locations along and north of the Interstate 10 corridor, while values remain near or just above one inch for for locations in north central FL that are south and east of Gainesville. Weak isentropic lift to the north of the stalling frontal boundary was creating patches of stratocumulus over inland portions of north central FL that were spreading over portions of the Suwannee Valley. Fair skies prevail elsewhere, and winds have decoupled across inland sections of southeast GA, where temperatures and dewpoints at 07Z were falling through the upper 50s. North-northwesterly winds of 5-10 mph prevailed along the coast in northeast FL, with lighter winds inland. Temperatures were falling through the 60s inland, ranging to around 70 at coastal locations. Dewpoints were falling to the upper 50s inland, ranging to the mid 60s in north central FL.

NEAR TERM [Through Tonight].

High pressure will strengthen somewhat as it settles over the southern Appalachians this afternoon. Our local pressure gradient will tighten during the late morning and early afternoon hours as this high pressure center briefly strengthens, and a weak coastal trough will push southwestward from the near shore Atlantic waters over the I-95 corridor before sunset. This subtle feature should produce increasing stratocumulus cloudiness along the I-95 corridor and points eastward at coastal locations this afternoon, but our low level air mass will likely not allow for measurable rainfall as this wind surge / weak coastal trough push onshore. Otherwise, deep troughing over the eastern Great Lakes will lift northeastward ahead of another potent shortwave trough that will be diving quickly southeastward from the Canadian Prairies into the upper Midwest by this evening. The net result will be a zonal flow pattern locally, with a dry air mass remaining in place. Highs today will mostly climb to the lower 80s, with slightly cooler conditions along the southeast GA coast and warmer temperatures over north central FL, where mid to upper 80s are forecast inland.

High altitude cloudiness may increase during the predawn hours on Saturday from west to east in our zonal flow pattern, downstream of the aforementioned trough progressing eastward across the Great Lakes and Ohio Valley. Our local pressure gradient will loosen overnight, with excellent radiational cooling conditions expected nearly region-wide. Lows will range from the low to mid 50s across inland southeast GA to the mid 60s for inland north central FL, except mid to upper 60s at area beaches, where a light onshore breeze will continue for most of the night.

SHORT TERM [Saturday Through Sunday].

High pressure will be over the southeastern CONUS with the center shifting from our northwest to the north. Dry weather with mostly sunny skies continue with a dry airmass and subsidence overhead. Light north-northeasterly flow less than 10 mph prevails this weekend. Below normal temperatures continue this weekend as they slowly begin to moderate. Overnight lows will be in the upper 50s across inland southeast Georgia and in the 60s elsewhere. Highs will be in the 80s.

LONG TERM [Monday Through Friday].

Dry weather continues through mid-week as high pressure over the area shifts to the east into the Atlantic. This will allow a upper trough and a front to dip south toward the region. This front could bring a slight chance for rain on Thursday. Temperatures increase to around normal by mid-week.

MARINE.

A weak trough sliding southward across our waters today will result in strengthening northeasterly winds through the late afternoon hours. Sustained speeds will remain just below Caution levels, or around 15 knots, through around sunset, and seas offshore will generally run in the 4-5 foot range. Otherwise, high pressure centered over the southern Appalachians will briefly weaken tonight and Saturday, followed by another high pressure center settling over the southeastern states and then also gradually weakening during the early portions of next week. Seas will diminish to 2-4 feet both near shore and offshore by Saturday night and Sunday. High pressure will then shift offshore of the Carolinas towards midweek ahead of a weak cold front pushing southward down the U.S. eastern seaboard late next week.

Rip Currents: A long period east-northeasterly ocean swell will combine with breezy onshore winds to create a high-end moderate rip current risk at all area beaches today. The swell and onshore winds will gradually diminish tonight and Saturday, with a low risk expected at the southeast GA beaches and a lower-end moderate risk forecast for the northeast FL beaches.

HYDROLOGY.

Minor flooding will continue along most of the Santa Fe, portions of the St. Marys, and lower portions of the Satilla River this weekend. The lower Suwannee River along the Gilchrist County border may approach minor flood levels towards midweek, which will result in rising levels along lower portions of the Santa Fe River in about one week to 10 days.

PRELIMINARY POINT TEMPS/POPS.

AMG 81 53 82 57 85 / 0 0 0 0 0 SSI 80 64 82 66 84 / 0 0 0 0 0 JAX 83 60 85 64 86 / 10 10 0 0 0 SGJ 82 68 84 68 85 / 10 10 10 0 0 GNV 86 63 87 64 86 / 0 10 10 0 10 OCF 86 64 88 66 87 / 10 10 10 0 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 mi47 min 71°F 64°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 15 mi47 min NNW 6 G 8 71°F 82°F1015.4 hPa
BLIF1 16 mi47 min NNW 7 G 8 71°F 1015.3 hPa65°F
DMSF1 17 mi47 min 83°F
BKBF1 18 mi47 min 68°F 1015.2 hPa
41117 20 mi47 min 78°F 82°F3 ft
NFDF1 20 mi47 min Calm G 1.9 65°F 1015.1 hPa65°F
SAUF1 - St. Augustine, FL 24 mi17 min NNE 11 G 13 77°F 81°F1014.6 hPa (-1.0)61°F
FRDF1 - 8720030 - Fernandina Beach, FL 34 mi47 min NW 2.9 G 7 73°F 82°F1015.4 hPa
41112 - Offshore Fernandina Beach, FL (132) 36 mi47 min 76°F 82°F3 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 37 mi92 min NNE 7 78°F 1016 hPa64°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 mi24 minN 510.00 miFair68°F62°F81%1014.8 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL14 mi25 minNNW 610.00 miFair70°F64°F82%1014.6 hPa
Northeast Florida Regional Airport, FL15 mi21 minNW 610.00 miFair67°F63°F87%1014.8 hPa
Jacksonville Naval Air Station, FL17 mi24 minNNW 810.00 miFair71°F63°F76%1014.7 hPa

Link to 5 minute data for KCRG

Wind History from CRG (wind in knots)
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Last 24hrN8N8N8N10N9NW10N55N73NW5NW6N3NW6NE3NE4CalmNE3CalmN3N4N4N4N5
1 day agoCalmCalmCalmS3CalmS5SW7SW5S66W4SW6SE66S7S5S5SE3NW11
G22
SW5CalmNW4N8N10
2 days agoCalmCalmCalmCalmS3Calm3N4N6NE6NE7E7W7E5SE5CalmS4SW4SW4S3CalmS4CalmCalm

Tide / Current Tables for Palm Valley, ICWW, Florida
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Palm Valley
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Fri -- 01:12 AM EDT     1.70 feet High Tide
Fri -- 07:10 AM EDT     -2.50 feet Low Tide
Fri -- 07:15 AM EDT     Sunrise
Fri -- 10:28 AM EDT     Moonset
Fri -- 01:40 PM EDT     1.91 feet High Tide
Fri -- 07:19 PM EDT     Sunset
Fri -- 07:37 PM EDT     -2.27 feet Low Tide
Fri -- 09:36 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.71.61.10.2-0.8-1.8-2.5-2.1-100.91.51.91.91.60.8-0.1-1.1-2.1-2.2-1.4-0.30.5

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
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Fri -- 01:05 AM EDT     -0.00 knots Slack
Fri -- 03:45 AM EDT     -1.94 knots Max Ebb
Fri -- 07:15 AM EDT     Sunrise
Fri -- 07:27 AM EDT     0.00 knots Slack
Fri -- 10:12 AM EDT     2.21 knots Max Flood
Fri -- 10:28 AM EDT     Moonset
Fri -- 01:28 PM EDT     -0.01 knots Slack
Fri -- 04:07 PM EDT     -2.06 knots Max Ebb
Fri -- 07:19 PM EDT     Sunset
Fri -- 08:15 PM EDT     0.00 knots Slack
Fri -- 09:36 PM EDT     Moonrise
Fri -- 10:40 PM EDT     1.59 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.10.1-1.1-1.8-1.9-1.7-1.3-0.50.61.72.221.50.6-0.7-1.7-2.1-2-1.7-1.1-0.30.71.51.6

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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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