Marine Weather and Tides
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.
|Sunrise 7:38AM||Sunset 7:44PM||Saturday March 17, 2018 8:29 AM EDT (12:29 UTC)||Moonrise 6:56AM||Moonset 7:00PM||Illumination 0%|
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|GMZ730 Apalachee Bay Or Coastal Waters From Keaton Beach To Ochlockonee River Fl Out To 20 Nm- Coastal Waters From Mexico Beach To Okaloosa Walton County Line Fl Out 20 Nm- Coastal Waters From Mexico Beach To Apalachicola Fl Out 20 Nm- Coastal Waters From Ochlockonee River To Apalachicola Fl Out To 20 Nm- Coastal Waters From Suwannee River To Keaton Beach Fl Out 20 Nm- Waters From Mexico Beach To Okaloosa Walton County Line Fl From 20 To 60 Nm- Waters From Apalachicola To Mexico Beach Fl From 20 To 60 Nm- Waters From Suwannee River To Apalachicola Fl From 20 To 60 Nm- 414 Am Edt Sat Mar 17 2018 |
Today..South winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Protected waters a light to moderate chop.
Tonight..Southwest winds around 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Protected waters smooth to a light chop.
Sunday..Southwest winds around 10 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters smooth to a light chop. A slight chance of showers and Thunderstorms in the afternoon.
Sunday night..South winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Protected waters a light to moderate chop. A slight chance of showers and Thunderstorms.
Monday..Southwest winds around 15 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Protected waters a moderate chop. A chance of showers and Thunderstorms.
Monday night..Southwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Protected waters choppy. Chance of showers and Thunderstorms.
Tuesday..West winds 20 to 25 knots. Seas 3 to 4 feet near shore and 4 to 6 feet with occasional seas up to 8 feet further offshore. Protected waters choppy. A chance of showers and Thunderstorms in the morning.
Tuesday night..Northwest winds around 25 knots. Seas 4 to 5 feet near shore and 6 to 8 feet with occasional seas up to 10 feet further offshore. Protected waters rough.
Wednesday..Northwest winds 20 to 25 knots. Seas 3 to 4 feet near shore and 5 to 7 feet with occasional seas up to 9 feet further offshore. Protected waters choppy.
|GMZ700 Synopsis For The Suwannee River To Okaloosa-walton County Line Out To 60 Nm 414 Am Edt Sat Mar 17 2018 |
Synopsis.. Moderate southwesterly winds are expected throughout the weekend and into Monday well ahead of an approaching storm system. Winds will increase to cautionary levels by Monday night as a cold front nears the marine area. After the cold front crosses the waters by Tuesday, winds will shift to an offshore direction and increase to advisory levels potentially through Thursday morning.
7 Day Forecast for Marine Location Near Lake Park, GAHourly EDIT Help
Area Discussion for -  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus62 ktae 171125|
area forecast discussion
national weather service tallahassee fl
725 am edt Sat mar 17 2018
Aviation [through 12z Sunday]
Ifr to lifr conditions will linger at tlh and vld due to
reductions in vsby for the next several hours.VFR conditions will
resume within the next 2 hours. Expect gradually lowering bkn to
ovc CIGS at all sites, with periods of tsra possible at dhn and
aby this afternoon. Reduced conditions not expected outside of any
tsra activity. However, brief reductions in vsby and cigs, as
well as gusty and erratic winds will be possible under any tsra
that directly affect dhn and aby. Prevailing SW winds AOB 10kts.
Prev discussion [408 am edt]
Near term [through today]
Strong quasi-zonal upper level flow will persist today, while at the
surface a front remains nearly stationary well to our north. After
some patchy fog in the fl big bend region dissipates shortly after
sunrise, deep layer moisture will continue to increase across our
area under southwesterly flow. While frontal forcing will not impact
our area, isentropic ascent will remain present throughout the day.
Combined with ample moisture and increasing instability, especially
across our northern and western areas during the afternoon,
scattered showers and thunderstorms will be possible. In fact,
latest cam guidance has shown the potential for isolated
strong severe thunderstorms across our far northern areas. Sbcape
could exceed 1000 j kg during the late afternoon and early evening,
along with 0-6 km bulk shear around 40 kts in our northern tier of
counties in SW georgia and SE alabama. As a result, isolated
damaging wind gusts and or hail will be possible with the strongest
thunderstorms during the afternoon and early evening.
After morning lows ranging from the upper 40s and lower 50s east to
lower 60s along the fl panhandle coast, temperatures will warm up
quickly under southwesterly flow. Highs will range from the upper
70s to lower 80s across inland areas and mid 70s along the gulf
Short term [tonight through Monday]
A somewhat complex forecast scenario looks to evolve over the
short term period. After lingering convection from Saturday
diminishes, focus will shift to the west where model guidance
shows a trough moving out of the four corners on Sunday afternoon.
This will induce surface cyclogenesis across the ok panhandle and
lift a warm front northward across the central gulf of mexico and
into our region. With relatively fast flow aloft, sufficient wind
shear will be present for storms Sunday afternoon evening
developing along and near this frontal boundary to become strong
to severe with the primary threat being large hail, though given
the orientation of the low level flow, an isolated tornado is also
possible especially if the low level flow is stronger than
currently indicated in the model guidance. The severe threat with
this event will be focused more across southeast alabama and into
Once the warm front retreats well north of the region on Sunday
night, our region will be in a bit of a lull as the main
trough surface low begins to approach by daybreak Monday. There's
a good chance of strong to severe storms on Monday and into Monday
night, but the details are a bit uncertain at this time frame.
Deep layer shear throughout the day is certainly sufficient for
severe storms 50-55 kt ocnl near 60 kt and surface-based
instability impressive 1700-2500 j kg . But unlike on Sunday, the
models suggest the flow will be nearly unidirectional, which
supports damaging winds as the dominant severe threat - though
large hail and an isolated tornado is also possible. Model
guidance is split on storm mode on Monday. It's possible that a
large MCS could move through the region late Monday morning and
into the afternoon well ahead of the surface cold front, which
most of the models still have well west of our region at 18z
Beyond Monday evening, while still having some potential for
severe weather, the threat is more conditional and uncertain as
prior convective activity could stabilize the airmass coupled
with the loss of daytime heating. Model soundings show surface
instability becoming negligible, but lapse rates begin to steepen
aloft ahead of the main trough. While the GFS shows little or no
activity with the cold front Monday night, the NAM and euro both
show fair good development across our region Monday night as the
cold front moves through. Again, much like on Monday, the dominant
severe threat would be damaging winds.
Event summary key points...
1. A stretch of unsettled weather is expected over the next three
days bringing multiple chances for severe storms.
2. The initial focus for strong storms will be across southeast
alabama and southwest georgia this afternoon where hail and|
damaging winds are possible.
3. The threat for severe weather increases Sunday afternoon and
evening, especially across southeastern alabama and southwest
georgia. Large hail, damaging winds, and isolated tornadoes will
be possible with this event.
4. By Monday, severe storms are possible region-wide - with two
distinct waves of impact weather. One during the daytime hours
and the other late Monday night. With both, damaging winds is the
primary threat, though there is a risk of an isolated tornado.
Long term [Tuesday through Saturday]
At the start of the period, model guidance has a cold front moving
across the forecast area, with potentially strong to severe storms
immediately ahead of the boundary. This front is expected to clear
the forecast area by Tuesday afternoon.
The departing storm system is expected to intensify over the
western atlantic and move quickly out to sea, leaving behind
another cool and dry airmass. From Wednesday through Friday the
models have been alternating between a stretch of especially cool
temperatures or a less intense cool snap. This cycle, with the
eastern CONUS trough remaining more off the new england coast,
the bulk of the chilly air, seems to stay to our north.
Accordingly, both euro and gfs-based MOS products have warmed 4-8
degrees for overnight lows Wed night and thurs night. Stayed a
couple of degrees cooler than the latest guidance in the event
things flip back on the next cycle. In any event, wed-fri will
feature below normal temperatures, but also dry conditions.
By Saturday, high pressure sets up east of the florida peninsula,
returning gulf moisture to the region and leading to a warming
trend with temperatures rising above normal.
Moderate southwesterly winds are expected throughout the weekend
and into Monday well ahead of an approaching storm system. Winds
will increase to cautionary levels by Monday night as a cold front
nears the marine area. After the cold front crosses the waters by
Tuesday, winds will shift to an offshore direction and increase to
advisory levels potentially through Thursday morning.
Moisture will continue to increase across our area this weekend,
with minimum rh values remaining well above critical thresholds each
day. As a result, no fire weather concerns are anticipated.
An unsettled stretch of weather is expected over the next 3 days.
The rainfall on Saturday and Sunday should be more isolated, and
generally focused across southeast alabama and into southwestern
georgia. More widespread activity is expected on Monday.
Throughout the event, storm total rainfall amounts should average
between 1 and 3 inches. As a result, flooding is not anticipated
at this time.
Spotter information statement
Spotter activation is not requested. However, spotters are always
encouraged to safely report significant weather conditions when they
occur by calling the office or tweeting us @nwstallahassee.
Preliminary point temps pops
Tallahassee 81 61 81 64 79 20 10 40 40 60
panama city 75 65 75 67 75 30 10 40 40 50
dothan 78 61 79 64 80 60 10 70 60 80
albany 80 61 80 63 79 60 10 40 70 80
valdosta 81 58 80 64 77 20 10 30 50 70
cross city 80 57 79 62 77 10 0 20 20 40
apalachicola 74 64 76 66 75 10 10 30 20 40
Tae watches warnings advisories
Fl... Dense fog advisory until 10 am edt this morning for coastal
dixie-coastal jefferson-coastal taylor-inland dixie-inland
Ga... Dense fog advisory until 10 am edt this morning for brooks-
Near term... Lahr
short term... Godsey
long term... Godsey
fire weather... Lahr
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|KTNF1 - Keaton Beach, FL||67 mi||29 min||E 1.9 G 2.9||53°F||1018.8 hPa (+1.2)||53°F|
|SHPF1 - SHP - Shell Point, FL||77 mi||95 min||E 2.9 G 4.1||59°F||1017.1 hPa|
|FRDF1 - 8720030 - Fernandina Beach, FL||88 mi||41 min||S 1.9 G 1.9||53°F||60°F||1019.3 hPa|
Wind History for I-295 Bridge, St Johns River, FL(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Valdosta Regional Airport, GA||9 mi||36 min||S 4||1.75 mi||Fog/Mist||51°F||51°F||100%||1019 hPa|
|Moody Air Force Base, GA||18 mi||93 min||S 3||8.00 mi||Mostly Cloudy||49°F||49°F||100%||1017.4 hPa|
Wind History from VLD (wind in knots)
|1 day ago||Calm||Calm||Calm||Calm||W||SW||SW||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm|
|2 days ago||N|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
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Sat -- 03:17 AM EDT 2.33 feet High Tide
Sat -- 07:43 AM EDT Sunrise
Sat -- 07:58 AM EDT Moonrise
Sat -- 09:14 AM EDT New Moon
Sat -- 10:04 AM EDT -0.13 feet Low Tide
Sat -- 03:43 PM EDT 2.39 feet High Tide
Sat -- 07:45 PM EDT Sunset
Sat -- 08:04 PM EDT Moonset
Sat -- 10:19 PM EDT 0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Spring Warrior Creek |
Click for Map
Sat -- 02:42 AM EDT 3.10 feet High Tide
Sat -- 07:42 AM EDT Sunrise
Sat -- 07:57 AM EDT Moonrise
Sat -- 09:10 AM EDT -0.21 feet Low Tide
Sat -- 09:14 AM EDT New Moon
Sat -- 03:09 PM EDT 3.18 feet High Tide
Sat -- 07:44 PM EDT Sunset
Sat -- 08:02 PM EDT Moonset
Sat -- 09:25 PM EDT 0.09 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  HelpWeather Map
GOES 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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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for (8,2,3,4)(on/off)  Help
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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 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.