Sunday, April18, 2021
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Marine Weather and Tides
Palm Beach Shores, FL

Version 3.4
NOTICE
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 6:51AMSunset 7:47PM Sunday April 18, 2021 4:55 PM EDT (20:55 UTC) Moonrise 10:21AMMoonset 12:00AM Illumination 43% Phase: First Quarter Moon; Moon at 7 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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AMZ650 Coastal Waters From Jupiter Inlet To Deerfield Beach Fl Out 20 Nm- Waters From Jupiter Inlet To Deerfield Beach Fl From 20 To 60 Nm- 401 Pm Edt Sun Apr 18 2021
Tonight..Southwest winds 5 to 10 knots along the coast to southwest 5 to 15 knots in the gulf stream. Seas 2 to 3 feet. Period 4 seconds. Intracoastal waters a light chop. Slight chance of showers in the evening. Slight chance of Thunderstorms through the night. Chance of showers after midnight.
Monday..South southwest winds 10 to 15 knots with gusts to around 20 knots. Seas 2 to 3 feet. Period 4 seconds. Intracoastal waters a light chop. Showers likely and chance of Thunderstorms.
Monday night..West northwest winds 5 to 10 knots becoming southeast after midnight. Seas around 2 feet. Period 4 seconds. Intracoastal waters a light chop. Showers likely in the evening. Chance of Thunderstorms through the night. Chance of showers after midnight.
Tuesday..South winds 10 to 15 knots with gusts to around 20 knots. Seas around 2 feet. Period 5 seconds. Intracoastal waters a light chop. Chance of showers and Thunderstorms.
Tuesday night..Southwest winds 10 to 15 knots with gusts to around 20 knots. Seas around 2 feet. Intracoastal waters a light chop. Chance of showers and Thunderstorms.
Wednesday..West winds 5 to 15 knots. Seas around 2 feet. Intracoastal waters a light chop. Showers likely in the morning. Chance of Thunderstorms. Chance of showers in the afternoon.
Wednesday night..North northwest winds 5 to 10 knots along the coast to north 5 to 15 knots in the gulf stream. Seas 2 to 3 feet. Intracoastal waters a light chop. Chance of showers and Thunderstorms.
Thursday..Northeast winds 10 to 15 knots. Seas around 2 feet along the coast and 2 to 4 feet with occasional to 5 feet in the gulf stream. Intracoastal waters a moderate chop. Chance of showers in the morning, then slight chance of showers and Thunderstorms in the afternoon.
Thursday night..East northeast winds around 10 knots along the coast to east northeast 10 to 15 knots with gusts to around 20 knots in the gulf stream. Seas 2 to 3 feet along the coast and 3 to 5 feet with occasional to 6 feet in the gulf stream. Intracoastal waters a moderate chop.
Friday..East northeast winds around 15 knots with gusts to around 20 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Intracoastal waters a moderate chop.
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 Pm Edt Sun Apr 18 2021
Synopsis.. The good boating conditions continue tonight despite a weak northeasterly swell still lingering over the atlantic waters off palm beach county. Periods of cautionary conditions are possible across portions of the atlantic waters during the first half of the week, as a cold front across central portions of the state will lead to increasing rain and Thunderstorm chances. The strongest activity may produce brief heavy rainfall, which may lead to reduced visibilities. Additionally, frequent cloud-to-water lightning, gusty winds, and localized higher seas may also be possible.
Gulf stream hazards..Increasing chances of showers and Thunderstorms with gusty winds and locally higher seas will be possible through mid-week. The approximate location of the west wall of the gulf stream as of apr 17, 2021 at 1200 utc... 6 nautical miles east northeast of fowey rocks. 8 nautical miles east northeast of port everglades. 4 nautical miles southeast of lake worth. 8 nautical miles southeast of jupiter inlet. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Palm Beach Shores, FL
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location: 26.77, -80.04     debug


Area Discussion for - Miami-South Florida, FL
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FXUS62 KMFL 181848 AFDMFL

Area Forecast Discussion National Weather Service Miami FL 248 PM EDT Sun Apr 18 2021

. A Few Strong Storms Possible North of I75 Early Week .

SHORT TERM (Tonight through Tuesday).

A pattern shift is on the way with the relatively drier and warm conditions giving way to a wetter start to the work week as a cold front currently over north central Florida begins to push southward over the peninsula of Florida. Other surface boundaries are also in the picture with an earlier boundary entering the region from the south that could allow some convection to develop over some portions of southern Florida this afternoon. Another potential source for convection today is a pinned Atlantic sea breeze that could allow for some activity over portions of Palm Beach and Broward Counties later this afternoon into the evening. As the sun sets, convection will diminish over land and eyes will turn to the north and west as the approaching pre-frontal convection may enter the region tonight into Monday.

With the approaching front, increasing moisture and an approaching low level jet will provide some support for shallow shower activity while a few co-incident passing mid-level shortwave troughs could provide the localized support for flare ups of thunderstorms as they pass around peak diurnal heating time on late Monday morning into the afternoon. Some slightly cooler air aloft with these troughs will combine with the heating of the surface to provide for more unstable lapse rates which should be able to defeat whatever is left of the inversion by midday allowing for convective coverage and intensity to increase.

Strong to severe thunderstorms cannot be ruled out, particularly from Alligator Alley northward which is closer to the approaching boundary, the edge of the low level jet, and appears to be the forecast target of the mid-level shortwave trough's vort max. Frequent lightning and heavy rain are concerns with any thunderstorm that develops, but damaging winds, hail, and excessive rainfall are certainly concerns with strong to severe thunderstorms that could develop with the aid of the support aloft. Accordingly, there could be some lulls in convection at times which could allow for reduced cloud cover which could provide for additional heating and instability for future rounds of storms. Repeated rounds of heavy rainfall over sensitive areas, such as poorly draining urbanized areas, could lead to some ponding of water as well.

Highs on Monday and Tuesday should be a few degrees cooler than they have been this weekend around 90 degrees except mid to upper 80s over the western areas. However, with the higher humidity over South Florida early this week, the heat indices will be in the mid 90s to near 100 over most areas, except for the west coast metro areas where they will be lower to mid 90s.

LONG TERM (Tuesday night through Sunday).

The cold front will continue slowly move southward by midweek. At the start of the long term, PWATs across the Lake Okeechobee region will be near if not exceeding record levels. Although the PWATs are more than juicy, absorption should be quite significant given climo and antecedent conditions. Still, can't rule out some urbanized hydro issues. Globals are in fairly good agreement with the front moving through afternoon or evening on Thursday. Prior to this time, will keep POPs for convection relatively high because of the continuation of deep layer moisture and subtle H5 impulses. That said, timing of the front my be still questionable depending on convection and cold pools/outflow that can give the front a forward boost allowing for a quicker passage, but these mesoscale concerns will be addressed as time progresses.

Behind the front a zonal/progressive flow develops over the region going into this weekend. Very weak QPF signals still reside in the globals, so it may not be completely dry, but any shower activity would be the exception rather than the rule as the column dries rather significantly. The old front will eventually lift back northward later this weekend as a storm system sets up across the Mississippi River Valley. Spatial and temporal uncertainty becomes evident within the forecast guidance as the ECM is a bit more progressive. Regardless, low-end POPs next weekend will be needed for the surface feature and perhaps some subtle mid-level impulse(s) at that time.

Temperatures will be held down early with increased cloudiness and precip. However, a warming trend is expected, especially toward the end of the period as the front lifts northward and heights gradually increase over the Caribbean and Gulf of Mexico.

AVIATION(18Z TAFS).

Generally southwesterly to westerly flow through the period though a weak Atlantic sea breeze could turn the east coast terminals more southerly at times this afternoon. Sea breeze could provide a focus for some convection before the front moves closer tonight bringing increasing shower and storm activity to close out the forecast period.

MARINE.

A cold front approaching the area will bring increasing chances of showers and thunderstorms back into the forecast for much of the week. Periodic cautionary conditions are possible in the Atlantic waters at times through at least mid-week.

Beach Forecast. An elevated rip current risk may linger across portions of the Atlantic beaches, particularly the Palm Beaches, this afternoon due to small E/NE swell. The rip current risk should begin to diminish early in the week as the swell dissipates.

PRELIMINARY POINT TEMPS/POPS. Miami 75 90 75 89 / 20 40 30 30 West Kendall 74 90 73 91 / 20 30 30 20 Opa-Locka 76 90 73 89 / 20 40 40 30 Homestead 73 88 72 88 / 20 30 30 20 Fort Lauderdale 75 89 75 88 / 30 40 40 30 N Ft Lauderdale 74 90 74 88 / 30 50 40 30 Pembroke Pines 75 90 73 90 / 30 40 40 30 West Palm Beach 73 90 71 88 / 20 60 50 50 Boca Raton 74 89 73 89 / 30 50 40 40 Naples 73 84 72 85 / 30 60 50 50

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

Tonight/Monday and Aviation/Marine/Beach . RAG/BNB Monday Night through Sunday . Frye

Visit us at weather.gov/miami

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LKWF1 - 8722670 - Lake Worth, FL 11 mi62 min S 15 G 17 79°F 79°F1011.6 hPa72°F
PEGF1 47 mi62 min SE 16 G 20 81°F 1012.4 hPa
SPGF1 - Settlement Point, GBI 56 mi56 min S 13 G 15 80°F 1013.2 hPa (-1.1)

Wind History for Lake Worth Pier, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
West Palm Beach - Palm Beach International Airport, FL8 mi63 minSSE 1610.00 miPartly Cloudy87°F71°F59%1011.8 hPa

Link to 5 minute data for KPBI

Wind History from PBI (wind in knots)
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2 days agoSE13S10SE7S7S5W4W6W7SW6SW6SW7SW5SW4W5W4W4--W9SW6Calm44SW6SE11

Tide / Current Tables for Port of Palm Beach, Florida
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Port of Palm Beach
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Sun -- 12:49 AM EDT     Moonset
Sun -- 01:02 AM EDT     2.54 feet High Tide
Sun -- 06:53 AM EDT     Sunrise
Sun -- 07:14 AM EDT     0.80 feet Low Tide
Sun -- 11:21 AM EDT     Moonrise
Sun -- 12:59 PM EDT     2.29 feet High Tide
Sun -- 07:26 PM EDT     0.38 feet Low Tide
Sun -- 07:46 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.42.52.42.11.71.310.80.91.11.51.92.22.32.21.91.410.60.40.40.71.11.6

Tide / Current Tables for West Palm Beach Canal, Florida (2)
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West Palm Beach Canal
Click for Map
Sun -- 12:49 AM EDT     Moonset
Sun -- 02:10 AM EDT     2.35 feet High Tide
Sun -- 06:53 AM EDT     Sunrise
Sun -- 08:43 AM EDT     0.75 feet Low Tide
Sun -- 11:21 AM EDT     Moonrise
Sun -- 02:07 PM EDT     2.12 feet High Tide
Sun -- 07:45 PM EDT     Sunset
Sun -- 08:55 PM EDT     0.36 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.82.22.32.32.11.71.310.80.80.91.31.722.121.81.51.10.70.40.40.50.9

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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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