Sunday, September19, 2021
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Marine Weather and Tides
North Key Largo, 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 7:08AMSunset 7:22PM Sunday September 19, 2021 9:09 AM EDT (13:09 UTC) Moonrise 5:57PMMoonset 4:44AM Illumination 96% Phase: Waxing Gibbous; Moon at 13 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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AMZ630 Biscayne Bay- 401 Am Edt Sun Sep 19 2021
Today..Northeast winds around 5 knots becoming east southeast in the afternoon. Bay waters a light chop. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Tonight..Northeast winds around 5 knots. Bay waters smooth. Chance of showers and Thunderstorms.
Monday..East winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms.
Monday night..East winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms.
Tuesday..East winds 5 to 10 knots. Bay waters a light chop. Chance of Thunderstorms in the morning. Showers likely through the day. Thunderstorms likely in the afternoon.
Tuesday night..East winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms.
Wednesday..Southeast winds around 5 knots. Bay waters smooth. Chance of showers in the morning. Chance of Thunderstorms
showers likely in the afternoon
Wednesday night..Southwest winds 5 knots. Bay waters smooth. Chance of showers and Thunderstorms.
Thursday..Southwest winds around 5 knots becoming south in the afternoon. Bay waters smooth. Slight chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
AMZ600 Synopsis For Jupiter Inlet To Ocean Reef Fl Out To 60 Nm And For East Cape Sable To Bonita Beach Fl Out To 60 Nm- 401 Am Edt Sun Sep 19 2021
Synopsis.. South florida remains on the periphery of weak surface high pressure. Scattered showers and Thunderstorms will be possible from time to time over all local waters over the coming days. Winds and waves could be locally higher in and around any shower or Thunderstorm.
Gulf stream hazards..None. The approximate location of the west wall of the gulf stream as of sep 18, 2021 at 1200 utc... 9 nautical miles southeast of fowey rocks. 13 nautical miles southeast of port everglades. 12 nautical miles east of lake worth. 14 nautical miles east of jupiter inlet. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near North Key Largo, FL
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location: 25.31, -80.27     debug


Area Discussion for - Miami-South Florida, FL
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FXUS62 KMFL 191131 AFDMFL

Area Forecast Discussion National Weather Service Miami FL 731 AM EDT Sun Sep 19 2021

AVIATION(12Z TAFS).

Generally dry/VFR with light and variable winds this morning. Scattered showers and storms with VCTS for terminals this afternoon. Sub-VFR conditions with storms that directly impact the terminals. This will be handled with tempos in amendments later this afternoon as storms begin to develop. Light and variable winds once again overnight.

PREV DISCUSSION. (Issued 157 AM EDT Sun Sep 19 2021)

SHORT TERM .

Today and Tonight:

A mid-level anticyclone remains in place across the Bahamas and Greater Antilles as troughing locates along the Eastern Seaboard and over the northwest Gulf of Mexico. This pattern will produce weak west to northwest flow aloft with increasing mid-level moisture advection into our area. A weak surface front attendant to the eastern trough should locate to our northeast with surface high pressure prevailing across the remainder of the region. A reservoir of deep moisture will prevail from the southwest Gulf of Mexico towards the northeast Gulf and Florida resulting in precipitable water values generally over 2 inches today. So we're looking at yet another day with very weak steering flow and high moisture content combining to create a risk for localized flooding. The Weather Prediction Center has placed the majority of our area within a marginal risk for excessive rainfall today and this seems prudent given antecedent and forecast conditions. Expect coverage to become greatest across inland areas where the sea breezes collide, with outflow boundaries pushing showers and storms towards portions of the east coast metro areas by afternoon and early evening. Temperatures will remain seasonal with highs mostly in the lower 90s, with some upper 80s along the coasts.

Monday:

An upper trough will advance towards the eastern states with additional troughing located over the western Atlantic. Florida will be located between these features as the deeper moisture reservoir further advects into our area. In fact precipitable water values should climb above 2 inches Monday morning while potentially reaching over 2.25 inches by afternoon. With troughing in the area a few perturbations are forecast to work across the area during the afternoon potentially leading to an increase in forcing with increasing cyclonic vorticity advection. This should combine with our traditional low-level forcing mechanisms generated by the sea breezes thus resulting in another (yes I know--another!) day of scattered to widespread showers and thunderstorms. Again we'll need to keep watch for localized flooding given an environment that's more than capable of efficient warm-rain processes. Coverage appears to be greatest across interior areas where the sea breezes collide, but given light steering flow thunderstorm-generated outflows will likely push convection back towards coastal areas during the afternoon to early evening. Temperatures should remain seasonal.

LONG TERM .

Monday Night to Saturday:

A mid-level trough will continue to propagate eastward across the northern plains and the mid-west through early next week. A cut-off low (and what is left of Nicholas) located over the Mississippi River valley will slowly advect northwards as it begins to phase with the aforementioned mid-level trough traversing eastward across the northern CONUS. The movement of the cut-off low northwards will allow for the continued moisture transport of a moisture-laden tropical airmass across the Gulf and South Florida. A fairly saturated vertical profile will allow for the unsettled pattern to continue through mid-week as copious amounts of moisture will provide the necessary ingredients for widespread shower and thunderstorm activity across South Florida for the foreseeable future. With saturated soils after a soggy week and weekend, repeated rounds of heavy rainfall could lead to localized flooding concerns through mid-week. Aside from hydro concerns, frequent lightning and locally gusty winds are possible with the strongest thunderstorm activity.

By mid week, the mid-level trough will push off into the Northern Atlantic as an associated weak frontal boundary slowly pushes through the southeastern CONUS. The latest European and American (GFS) models remain consistent in depicting the frontal boundary reaching portions of northern and central Florida by late week. However both model solutions depict the frontal boundary washing out over Central Florida and remaining to the north of our region. This will keep the lower dewpoints and "fall-like" temperatures well to the north of our region as South Florida remains to the south of the boundary (at least through the end of the current long-term period). We will remain in a moist tropical airmass with precipitable water values remaining near 2.0 inches during this time-frame. The extended period remains unsettled with shower and thunderstorm activity and hydrology concerns remaining as a primary hazard.

MARINE .

Winds and seas will be light as the high pressure ridge remains near the area, with daily wind speeds no more than about 10-12 knots and seas 2 ft or less. Showers and thunderstorms are expected across all waters into early next week. Waterspouts and locally higher winds and seas are possible in showers and storms.

PRELIMINARY POINT TEMPS/POPS. Miami 77 90 78 89 / 40 50 40 70 West Kendall 76 90 77 89 / 40 50 40 70 Opa-Locka 77 90 78 90 / 40 50 40 70 Homestead 75 89 76 88 / 40 40 40 70 Fort Lauderdale 77 89 79 88 / 40 40 40 70 N Ft Lauderdale 77 88 79 89 / 40 50 30 70 Pembroke Pines 76 88 78 89 / 40 50 40 70 West Palm Beach 76 88 77 89 / 50 50 40 70 Boca Raton 77 88 78 89 / 40 50 30 70 Naples 76 90 75 90 / 30 50 40 70

MFL WATCHES/WARNINGS/ADVISORIES. FL . None. AM . None. GM . None.

Update/Aviation . Kelly Today through Monday and Marine . SPM Monday Night through Saturday . Hadi

Visit us at weather.gov/miami

Follow us on Facebook and Twitter at: www.facebook.com/nwsmiami www.twitter.com/nwsmiami


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MDKF1 7 mi70 min 91°F
MNBF1 9 mi70 min 88°F
THRF1 9 mi130 min 85°F
HCEF1 - Highway Creek, FL 10 mi70 min 89°F
LSNF1 - Long Sound, FL 11 mi70 min 91°F
LBSF1 - Little Blackwater, FL 11 mi130 min 86°F
BWSF1 - Blackwater Sound, FL 13 mi130 min 88°F
TCVF1 - Trout Cove, FL 15 mi70 min 86°F
DKKF1 - Duck Key, FL 15 mi130 min 87°F
JBYF1 16 mi70 min 86°F
BBNF1 20 mi190 min 86°F
BNKF1 - Butternut Key, FL 20 mi70 min 87°F
TRRF1 - Taylor River, FL 21 mi70 min 85°F
FWYF1 - Fowey Rocks, FL 21 mi70 min NNW 8 G 8.9 82°F 84°F1016.9 hPa (+1.1)
LMDF1 - Little Madeira, FL 21 mi70 min 89°F
TBYF1 26 mi70 min 87°F
BOBF1 - Bob Allen, FL 29 mi70 min 87°F
VAKF1 - 8723214 - Virginia Key, FL 30 mi52 min NW 1.9 G 5.1 84°F 89°F1017.2 hPa
WRBF1 - Whipray Basin, FL 30 mi70 min NW 9.9 86°F
GBTF1 - Garfield Bight, FL 30 mi70 min 87°F
LRIF1 33 mi70 min 87°F
BKYF1 33 mi70 min 85°F
NRRF1 34 mi70 min 85°F
WWEF1 36 mi130 min 86°F
CANF1 - Cane Patch, FL 36 mi70 min 82°F
LRKF1 - Little Rabbit Key, FL 37 mi130 min 86°F
PKYF1 - Peterson Key, FL 37 mi70 min 87°F
TPEF1 - Tarpon Bay East, FL 37 mi70 min 85°F
MUKF1 - Murray Key, FL 38 mi70 min 86°F
JKYF1 - Johnson Key, FL 38 mi70 min 86°F
CWAF1 39 mi130 min 87°F
BDVF1 - Broad River, FL 40 mi70 min 85°F
GBIF1 - Gunboat Island, FL 41 mi70 min 85°F
HREF1 43 mi70 min 84°F
SREF1 44 mi70 min 86°F
WIWF1 - Willy Willy, FL 45 mi70 min 83°F
LONF1 - Long Key, FL 45 mi40 min 8 G 9.9 84°F 1016.2 hPa76°F

Wind History for Virginia Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Homestead Air Reserve Base, FL13 mi74 minN 010.00 miFair78°F74°F90%1016.6 hPa

Link to 5 minute data for KHST

Wind History from HST (wind in knots)
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Last 24hrNW3NE4CalmCalmE3E5SE5S6E6SE8S3W3NW4CalmCalmCalmCalmNW3CalmCalmNW3NW3CalmCalm
1 day agoCalmS5--S8SW7S9SE13
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NW11E5E4NW12W9CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3N4
2 days agoS3S6S8S9S8S12S12S8NW5NW5NW6NW6NW5CalmCalmCalmCalmCalmCalmCalmCalmN4CalmCalm

Tide / Current Tables for Ocean Reef Harbor, Key Largo, Florida
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Ocean Reef Harbor
Click for Map
Sun -- 01:58 AM EDT     0.42 feet Low Tide
Sun -- 05:44 AM EDT     Moonset
Sun -- 07:08 AM EDT     Sunrise
Sun -- 08:00 AM EDT     2.94 feet High Tide
Sun -- 02:18 PM EDT     0.26 feet Low Tide
Sun -- 06:56 PM EDT     Moonrise
Sun -- 07:20 PM EDT     Sunset
Sun -- 08:27 PM EDT     3.01 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.60.40.61.11.72.32.82.92.82.31.71.10.50.30.30.71.42.12.6332.62

Tide / Current Tables for Caesar Creek, Biscayne Bay, Florida Current
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Caesar Creek
Click for Map
Sun -- 12:59 AM EDT     -1.92 knots Max Ebb
Sun -- 04:16 AM EDT     0.00 knots Slack
Sun -- 05:44 AM EDT     Moonset
Sun -- 07:08 AM EDT     Sunrise
Sun -- 07:14 AM EDT     1.40 knots Max Flood
Sun -- 09:42 AM EDT     -0.00 knots Slack
Sun -- 01:10 PM EDT     -2.29 knots Max Ebb
Sun -- 04:39 PM EDT     0.00 knots Slack
Sun -- 06:56 PM EDT     Moonrise
Sun -- 07:20 PM EDT     Sunset
Sun -- 07:41 PM EDT     1.60 knots Max Flood
Sun -- 10:19 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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-1.7-1.9-1.7-1.1-0.20.61.11.41.30.7-0.3-1.3-2-2.3-2.1-1.6-0.60.31.11.51.61.20.3-0.7

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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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