Monday, January20, 2020
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Marine Weather and Tides
Micanopy, FL

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 5:57PM Monday January 20, 2020 12:34 PM EST (17:34 UTC) Moonrise 3:33AMMoonset 2:24PM Illumination 20% Phase: Waning Crescent; Moon at 25 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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GMZ850 Coastal Waters From Tarpon Springs To Suwannee River Fl Out 20 Nm- 1021 Am Est Mon Jan 20 2020
.small craft exercise caution...
This afternoon..North winds 15 to 20 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
Tonight..North winds 15 to 20 knots. Seas 2 to 4 feet. Bay and inland waters choppy.
Tuesday..North winds around 20 knots. Seas 2 to 4 feet. Bay and inland waters choppy.
Tuesday night..North winds around 20 knots. Seas 2 to 4 feet. Bay and inland waters choppy.
Wednesday..Northeast winds around 20 knots diminishing to 10 to 15 knots in the late morning and afternoon. Seas 2 to 4 feet. Bay and inland waters choppy.
Wednesday night..Northeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Thursday..Northeast winds around 15 knots then becoming east 5 to 10 knots in the afternoon. Seas 2 feet. Bay and inland waters a moderate chop.
Thursday night..Southeast winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. A slight chance of showers after midnight.
Friday..Southeast winds around 15 knots then becoming south 5 to 10 knots in the late morning and afternoon. Seas 2 feet. Bay and inland waters a moderate chop. A chance of showers.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 1021 Am Est Mon Jan 20 2020
Synopsis.. Interaction between a cold front over southern florida and strong high pressure over the central u.s. Is producing gusty northerly winds across the eastern gulf of mexico. Have let the sca expire at 10 am, but will continue to hold scec for all waters today and tonight. Onshore wave action will produce a high risk of rip currents at local beaches through the day. The gradient further tightens on Tuesday afternoon between the high pressure over the ohio river valley and a trough of low pressure near the bahamas, which will likely bring conditions back up to sca level continuing through Wednesday afternoon. The high moves off the mid-atlantic coast by Thursday which will bring the winds around to the east and will decrease below any sca or scec level to close out the week.


7 Day Forecast for Marine Location Near Micanopy, FL
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location: 29.53, -82.3     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 201731 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 1231 PM EST Mon Jan 20 2020

AVIATION. [Through 18Z Tuesday]

Stratocu clouds were moving into the coastal areas early this afternoon, and scattered/broken cigs at 2.5-3kft will prevail at the coastal TAF sites through the afternoon hours before pushing southward. VFR conditions are then forecast to prevail overnight. Northerly winds 10-15 knots will prevail this afternoon, with winds 5-10 knots overnight. Northerly winds will then increase to 10-15 knots once again on Tuesday.

PREV DISCUSSION [806 AM EST].

NEAR TERM [Through Tonight].

Strong high pressure is building into the region from the northern plains early this morning and bringing with it colder and drier air into our area. Temperatures have been dropping overnight across the area with inland SE GA currently in the mid to upper 30s while NE FL areas were in the low to mid 40s. Northwest winds around 10-15 mph coupled with the colder temperatures are helping to make temperatures across the region feel more like in the 30s for much of the area. Low Temperatures this morning will bottom out in the low to mid 30s over SE GA and the Suwannee valley of NE FL while dropping into the upper 30s to lower 40s closer to the coast this morning.

The strong high pressure center will continue to build slowly southeast towards the upper Mississippi Valley this afternoon. A deep mid/upper level trough over the eastern third of the U.S. is helping to bring in a cold dry air mass farther south into the southeastern states, the Gulf Coast, and into the Florida Peninsula. This pattern will keep northerly winds and colder than average temperatures through the afternoon with Monday's highs only topping out in the low to mid 50s. Winds will be around 10-20 mph along the coast and lighter inland around 5-10 mph.

Tonight, mostly clear skies and light northerly winds will continue with the area influenced by cold high pressure. A Freeze Watch is in place late this evening through Tuesday morning for temperatures expected to fall into the upper 20s over much of SE GA and the low 30s over areas of NE FL along and west of Highway 301 with mid 30s along the immediate SE GA and NE FL coasts.

SHORT TERM [Tuesday Through Wednesday].

Tuesday . Models continue to show stronger mid-level trof to swing through the SE U.S. and into the Wrn Atlc which will reinforce the polar airmass in place with strong cold air advection from the North which will hold Max Temps well below normal in the mid/upper 40s SE GA and upper 40s/lower 50s for NE FL. Breezy North winds at the surface will increase to 15 to 20 mph inland and 20 to 25 mph along the coast with gusts to 30 mph at times. This will drive wind chills down into the 20s in the morning hours and a Wind Chill Advisory may need to be posted.

Tuesday Night . Another cold night with expected inland advective freeze event with widespread lows in the upper 20s inland and 30s closer to the coast. Wind chills will continue to be an issue as winds remain elevated at North 5-10 mph inland and North 10-20 mph along the Atlc Coast and wind chills in the 20s expected area- wide and an advisory may be required again.

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.

LONG TERM [Thursday Through Monday].

Thursday . High pressure settles into the Carolinas and breezy onshore flow develops which will moderate temps slightly with highs closer to climo values in the 60s, but increase in clouds and moisture will support showers over the coastal waters and along the NE FL Coast from JAX southward through the St Johns River Basin at times.

Friday . Long-range models trending towards rainfall chances increasing as onshore flow from the Atlc in the lower levels is over-run by moist SW flow in the mid levels out of the Gomex and this will likely bring at least scattered to numerous showers and highs pushing closer to 70 degrees.

Saturday . Models are trending drier on Saturday as Gulf low pressure/disturbance is kicked towards the NE and into the Carolinas faster than previous runs and any rainfall from Friday Night should come to an end early with skies becoming partly sunny and despite the breezy West to Northwest winds still expect highs into the 60s for most locations.

Sunday . High pressure builds in from the West and expect dry conditions under mostly sunny skies and Highs near climo levels in the lower 60s. Some low temps in the mid/upper 30s over inland areas Saturday and Sunday nights with some patchy frost, but sub- freezing temps are not expected.

MARINE.

A Small Craft Advisory for the nearshore and offshore waters will continue through Tuesday afternoon. Strong high pressure to the northwest of the area waters will move east on Monday and will bring in elevated northerly winds with seas across the area waters On Tuesday the high will build closer towards the region and elevated winds from the north will continue. A chance of showers is possible Tuesday. On Wednesday high pressure will be north of the waters while a low pressure system forms over the Bahamas. Winds will increase and veer to the northeast as the pressure gradient tightens between the high pressure to the north and the surface low to the southeast of the area waters. A chance of showers is expected Tuesday and into Wednesday.

Rip Currents: Moderate Risk of rip currents today for NE FL beaches with a Moderate risk of rip currents for SE GA beaches.

PRELIMINARY POINT TEMPS/POPS.

AMG 28 47 27 52 33 / 0 0 0 0 0 SSI 32 46 33 52 44 / 0 0 0 0 0 JAX 29 49 31 55 44 / 0 0 0 0 0 SGJ 37 49 36 57 50 / 0 0 0 10 20 GNV 28 51 28 56 42 / 0 0 0 0 0 OCF 30 52 28 59 44 / 0 0 0 0 0

JAX WATCHES/WARNINGS/ADVISORIES. FL . Freeze Watch from 11 PM EST this evening through Tuesday morning for Baker-Bradford-Central Marion-Clay-Eastern Alachua- Gilchrist-Hamilton-Inland Duval-Inland Nassau-Northern Columbia-Southern Columbia-Suwannee-Union-Western Alachua- Western Marion.

GA . Freeze Watch from 11 PM EST this evening through Tuesday 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 . Small Craft Advisory until 4 PM EST Tuesday 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
CDRF1 - Cedar Key, FL 47 mi34 min NNE 6 G 9.9 48°F 1024.5 hPa (-0.3)28°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 57 mi49 min N 8.9 53°F 1025 hPa42°F
SAUF1 - St. Augustine, FL 59 mi34 min N 17 G 20 49°F 63°F1023.4 hPa (+0.0)

Wind History for Cedar Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gainesville, Gainesville Regional Airport, FL10 mi41 minN 810.00 miFair51°F32°F48%1025.3 hPa

Link to 5 minute data for KGNV

Wind History from GNV (wind in knots)
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Last 24hrSW11SW10SW10W12NW10NW9NW10NW10NW11N11NW7NW6NW6NW5NW8N5N5NW6NW6NW6N8
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NE12NE11NE7NE6NE6NE6NE5NE3CalmCalmCalmCalmNW3CalmCalmSE6SE10SE9

Tide / Current Tables for Buffalo Bluff, St. Johns River, Florida
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Buffalo Bluff
Click for Map
Mon -- 12:08 AM EST     3.61 feet High Tide
Mon -- 03:30 AM EST     Moonrise
Mon -- 06:42 AM EST     2.74 feet Low Tide
Mon -- 07:21 AM EST     Sunrise
Mon -- 12:41 PM EST     3.68 feet High Tide
Mon -- 02:21 PM EST     Moonset
Mon -- 05:53 PM EST     Sunset
Mon -- 07:17 PM EST     2.81 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.63.63.43.12.92.82.82.72.93.23.43.53.63.73.53.33.132.92.82.93.13.33.5

Tide / Current Tables for Welaka, St. Johns River, Florida (5)
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Welaka
Click for Map
Mon -- 03:30 AM EST     Moonrise
Mon -- 04:56 AM EST     2.86 feet Low Tide
Mon -- 06:00 AM EST     2.86 feet High Tide
Mon -- 07:21 AM EST     Sunrise
Mon -- 07:42 AM EST     2.84 feet Low Tide
Mon -- 11:22 AM EST     3.26 feet High Tide
Mon -- 02:21 PM EST     Moonset
Mon -- 05:13 PM EST     2.93 feet Low Tide
Mon -- 05:54 PM EST     Sunset
Mon -- 06:19 PM EST     2.94 feet High Tide
Mon -- 08:20 PM EST     2.89 feet Low Tide
Mon -- 11:38 PM EST     3.25 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.23.23.132.92.92.92.92.82.93.13.23.23.23.23.132.92.92.92.92.93.13.2

Weather Map
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wmap_A
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 (12,3,4,5)
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Ground Weather Radar Station Jacksonville, FL
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Gulf Stream Current


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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.