Sunday, September24, 2017 L-36.com


Marine Weather and Tides
Palm City, FL

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:09AMSunset 7:15PM Sunday September 24, 2017 8:20 AM EDT (12:20 UTC) Moonrise 10:05AMMoonset 9:25PM Illumination 15% Phase: Waxing Crescent; Moon at 4 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
    EDIT      (on/off)   Help
AMZ555 SEbastian Inlet To Jupiter Inlet 0-20 Nm- 349 Am Edt Sun Sep 24 2017
.small craft advisory in effect through Monday afternoon...
Today..North winds 10 to 15 knots. Seas 7 to 10 feet with a dominant period 14 seconds. A moderate chop on the intracoastal waters. Chance of showers and slight chance of Thunderstorms.
Tonight..North winds 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Seas 8 to 11 feet with a dominant period 13 seconds. A light chop on the intracoastal waters. Slight chance of showers.
Monday..North winds 10 knots. Seas 8 to 11 feet with a dominant period 13 seconds. A light chop on the intracoastal waters. Slight chance of showers. Slight chance of Thunderstorms in the afternoon.
Monday night..North winds 5 to 10 knots becoming northwest after midnight. Seas 7 to 10 feet. Mostly smooth on the intracoastal waters. Slight chance of showers and Thunderstorms in the evening.
Tuesday..West winds 5 to 10 knots becoming north 5 knots in the afternoon. Seas 7 to 9 feet. A light chop on the intracoastal waters.
Tuesday night..West winds 5 to 10 knots. Seas 6 to 8 feet.
Wednesday..West winds 5 to 10 knots. Seas 5 to 7 feet.
Wednesday night..West winds 5 to 10 knots. Seas 5 to 7 feet.
Thursday..West winds 5 to 10 knots becoming south 5 knots in the afternoon. Seas 3 to 4 feet.
AMZ500 Synopsis For Flagler Beach To Jupiter Inlet Out To 60 Nm- 349 Am Edt Sun Sep 24 2017
Synopsis..Hazardous conditions for small craft operation are expected to continue and extend into early week as hurricane maria moves northward toward the waters offshore the carolinas. A moderate to fresh northeast to north breeze and large swells can be expected, then swells will be slow to subside into the middle to latter part of the week.
Gulf stream hazards..SEas building 9 to 12 feet north of sebastian inlet today and maintaining into Monday. The approximate location of the west wall of the gulf stream based on the real time ocean forecast system as of Friday september 22nd. 40 nautical miles east of ponce inlet. 30 nautical miles east of port canaveral. 26 nautical miles east of sebastian inlet. 17 nautical miles east of fort pierce inlet. 11 nautical miles east of saint lucie inlet.

7 Day Forecast for Marine Location Near Palm City, FL
   Hourly   EDIT   Help
location: 27.17, -80.26     debug


Area Discussion for - Melbourne, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kmlb 240731
afdmlb
area forecast discussion
national weather service melbourne fl
331 am edt Sun sep 24 2017

Hazardous beach and boating conditions continue...

Discussion
Today tonight... Latest radar depicts spotty showers as expected
moving across the marine area toward the coast. With no particular
focusing mechanism, the distribution has been relatively even
with convective cells moving wsw onshore between daytona beach and
west palm beach. Inland penetration has largely been confined to
counties along the coastal tier but several have been reaching
near the kissimmee river before dissipating.

By sunrise, TC maria will be about 450 miles east of CAPE canaveral
continuing to head north as a major hurricane before dialing-back to
hurricane status north of latitude 30. Maria is the main feature
influencing todays local weather as this will be the time window of
its closest approach, although distant as it is. Backside flow will
offer NE trajectories with somewhat elevated winds across the
coastal waters and buffeting the land sea interface. Yet, a measure
of atmospheric drying will gradually take place despite the
otherwise maritime flow. After sunrise, scattered shower activity
will trend toward favoring the space and treasure coasts with precip
chances then transitioning inland with the afternoon to include
isolated storms. Rain chances north of a line from titusville to
orlando will become slight. The other impact of importance is the
large and long period swells emanating from maria. A high surf
advisory will be allowed to continue as an increased volume of water
is pushed up onto the beaches, especially during high tide. Surf
conditions are optimal for a high risk of rip currents (especially
with the outgoing tide) and will be headlined in corresponding zone
forecasts. As maria pulls farther away tonight, a greater tap of
drier air will be realized from the north. However, there will be a
shift in emphasis for overnight coastal showers toward the volusia
county coast given the slightly stronger wind speeds over marine
legs north of the cape. MAX temperatures in the upper 80s to near 90
degrees, with min temperatures in the low to mid 70s.

Monday... Drier air filtering down the backside of hurricane maria
will bring below normal precipitation chances to the area. Enough
moisture remains to squeak out a couple of showers, perhaps even
a storm or two, mainly south of titusville to kissimmee. Winds
will slacken as the pressure gradient relaxes, starting off out of
the north and then veering to the northeast during the afternoon.

Afternoon temps a degree or two above their typical late
september values: 87-89 along the coast and 89-91 inland.

Dangerous surf and rip currents will continue at area beaches.

Tuesday-Saturday... An anomalously dry atmosphere will keep precip
chances low through late week. No more than isolated showers
(pops 20% or less) are advertised at this time, with most locales
expected to remain dry through the remainder of the workweek.

Models diverge late in the period with the GFS more bullish on
moisture return versus the drier ecmwf. For now, opted to bring
pops closer to climo (25-35%) on Friday and Saturday.

Ample sunshine and light west flow will boost temperatures several
degrees above average through late week, even along the coast.

Afternoon highs in the low 90s and min temps in the low to mid
70s. Swells from maria will be slow to subside through mid week,
keeping conditions in the surf zone quite hazardous. A high risk
for rip currents is expected to continue through the week.

Aviation Scattered showers were moving wsw across the coastal
waters toward the shore from kdab-ksua. Although vcsh is noted for
all sites, better chances reside with coastal sites thru 15z. This
may bring about tempo 3-5sm shra bkn025 accordingly. All sites will
be subject thru about 21z with isolated thunder for inland sites as
the afternoon progresses. Even so, drier air will be working in from
the north to curb shra tsra chances compared to previous days.

Occasional g22kt for coastal sites.

Marine
Today tonight... TC maria will make its closest approach to east
central florida today about 450 miles offshore and will continue
moving generally N through the afternoon. Swells will be 7 to 10
feet near shore and 10 to 12 feet across the offshore waters. The
seas will be hazardous for small craft. At buoy 009, combined seas
were already 10-11 feet.

Monday... Hazardous seas continue as north winds between 10-15
knots add wind chop to maria's large swells. Seas 6 to 9 feet
nearshore and up to 12 feet offshore.

Tue-thu... Swells from distant hurricane maria will be slow to
subside through mid week, though winds will relax considerably as
the local pressure gradient weakens. Seas will remain at or above
sca criteria through mid week before improving late Wednesday and
into Thursday.

Climate
Yesterday's rainfall caused monthly precipitation tallies to
surpass the all-time wettest record for september for kmlb. The
measured 0.35 inches brought the monthly total to 19.78 inches,
breaking the previous record of 19.68 inches from 1948. Since
there are several more days of september remaining, the new record
could be higher by the end of the month.

Hydrology
Moderate to major flooding continues on the st johns river with
river levels forecast to remain nearly steady then continue a slow
fall early next week into mid-week. The river level at the st
johns west of cocoa has nearly reached the peak level set after
tropical storm fay with flooding impacts reported. Shingle creek
at campbell has dropped below flood stage and is expected to drop
below action stage by Monday.

Preliminary point temps pops
Dab 86 75 88 72 20 20 10 10
mco 88 73 90 73 20 10 20 10
mlb 87 75 88 74 30 10 20 10
vrb 87 74 89 74 40 10 20 20
lee 90 73 91 73 20 10 10 10
sfb 88 74 90 73 20 10 10 10
orl 88 73 90 73 20 10 20 10
fpr 87 74 89 74 40 10 20 20

Mlb watches warnings advisories
Fl... High surf advisory until 4 am edt Monday for coastal volusia
county-indian river-martin-northern brevard county-southern
brevard county-st. Lucie.

Am... Small craft advisory until 4 pm edt Monday for flagler beach to
volusia-brevard county line 0-20 nm-flagler beach to
volusia-brevard county line 20-60 nm-sebastian inlet to
jupiter inlet 0-20 nm-sebastian inlet to jupiter inlet 20-
60 nm-volusia-brevard county line to sebastian inlet 0-20
nm-volusia-brevard county line to sebastian inlet 20-60 nm.

Sharp ulrich


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41114 - Fort Pierce, FL (134) 26 mi51 min 82°F5 ft
LKWF1 - 8722670 - Lake Worth, FL 40 mi51 min NE 13 G 15 83°F 84°F1011.7 hPa77°F
SPGF1 - Settlement Point, GBI 74 mi81 min NE 13 G 15 83°F 1009.9 hPa (+0.9)
PVGF1 - Port Everglades Channel, FL 75 mi57 min WNW 7 G 12 76°F 1010.3 hPa74°F

Wind History for Lake Worth Pier, FL
(wind in knots)    EDIT      (on/off)   Help
-12
PM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last
24hr
N6
N9
G12
NE12
N10
N11
N11
N12
NE14
N16
NE16
NE21
G26
NE16
NE14
NE14
NE13
NE13
NE11
NE14
NE12
NE12
NE13
NE12
G15
NE12
G15
1 day
ago
E8
NE4
E4
SW1
NE6
NE6
NE6
NE10
NE22
NE17
NE25
NE18
NE17
E16
E17
E12
G15
E10
E10
E10
G13
E8
E8
2 days
ago
NW5
N5
N5
NE7
NE7
N19
N18
NE14
G17
NE15
NE15
NE17
NE14
NE12
NE13
NE13
NE12
E11
E10
SE8
G11
E10
E10
E6
E5
E6

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Witham Field Airport, FL2 mi31 minENE 87.00 miA Few Clouds84°F77°F79%1011.8 hPa
Fort Pierce, St. Lucie County International Airport, FL24 mi28 minVar 410.00 miFair81°F75°F85%1011.6 hPa

Wind History from SUA (wind in knots)
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last 24hrE6NE9NW10N10N5E8E9E10
G15
E11
G20
NE12
G20
--E4NE6NE7NE11NE6E11NE10E9NE10NE9NE8NE7NE8
1 day agoN4N4NE4E5E8E8E8NE7NE10--------E13
G18
E12
G18
E13
G19
E12
G18
E10E7E4E7NE6E5E6
2 days agoN4N6NE3NE10NE5NE8--N10
G18
N8
G18
N8
G18
NE6NE7NE7NE7NE8E5E7E5E4E4E4N4CalmCalm

Tide / Current Tables for South Fork, St. Lucie River, Florida
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
South Fork
Click for Map
Sun -- 02:12 AM EDT     1.23 feet High Tide
Sun -- 07:10 AM EDT     Sunrise
Sun -- 09:07 AM EDT     0.33 feet Low Tide
Sun -- 11:05 AM EDT     Moonrise
Sun -- 02:45 PM EDT     1.24 feet High Tide
Sun -- 07:14 PM EDT     Sunset
Sun -- 09:32 PM EDT     0.60 feet Low Tide
Sun -- 10:25 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.91.11.21.21.10.90.70.50.40.30.40.60.811.21.21.21.10.90.80.70.60.60.7

Tide / Current Tables for North Fork, St. Lucie River, Florida
   EDIT      (on/off)   Help   One Week of Data
North Fork
Click for Map
Sun -- 02:09 AM EDT     1.30 feet High Tide
Sun -- 07:10 AM EDT     Sunrise
Sun -- 09:02 AM EDT     0.37 feet Low Tide
Sun -- 11:05 AM EDT     Moonrise
Sun -- 02:39 PM EDT     1.32 feet High Tide
Sun -- 07:15 PM EDT     Sunset
Sun -- 09:28 PM EDT     0.66 feet Low Tide
Sun -- 10:25 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.21.31.31.110.70.60.40.40.40.60.91.11.31.31.31.110.80.70.70.70.8

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Melbourne, FL (8,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Melbourne, FL
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Disclaimer:
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 numerious 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.