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 6:46AM||Sunset 6:54PM||Sunday March 18, 2018 2:38 PM CDT (19:38 UTC)||Moonrise 7:41AM||Moonset 8:08PM||Illumination 4%|
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|GMZ750 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- 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- 1124 Am Edt Sun Mar 18 2018 |
Rest of today..South winds 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Protected waters a light chop. Slight chance of showers and isolated Thunderstorms late in the morning. Chance of showers and Thunderstorms in the afternoon.
Tonight..Southwest winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Protected waters a light to moderate chop. A chance of showers and Thunderstorms.
Monday..Southwest winds around 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 2 to 4 feet. Dominant period 4 seconds. Protected waters a moderate chop to choppy. 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. Dominant period 6 seconds. Protected waters choppy. A chance of showers and Thunderstorms.
Tuesday..West winds 20 to 25 knots and gusty, increasing to 25 to 30 knots with gale force gusts in the afternoon. Seas 4 to 6 feet with occasional seas up to 8 feet, building to 6 to 8 feet with occasional seas up to 10 feet. Dominant period 6 seconds. Protected waters choppy to rough. A chance of showers and Thunderstorms in the morning.
Tuesday night..Northwest winds 25 to 30 knots. Seas 5 to 7 feet near shore and 8 to 11 feet with occasional seas up to 14 feet well offshore. Protected waters rough.
Wednesday..Northwest winds 20 to 25 knots, becoming northwest around 20 knots in the afternoon. Seas subsiding to 3 to 5 feet near shore and 5 to 7 feet occasionally up to 9 feet well offshore. Protected waters choppy.
Wednesday night..North winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Protected waters choppy.
Thursday..North winds 10 to 15 knots. Seas 2 to 3 feet. Protected waters a light to moderate chop.
|GMZ700 Synopsis For The Suwannee River To Okaloosa-walton County Line Out To 60 Nm 1124 Am Edt Sun Mar 18 2018 |
Synopsis.. After generally light winds and low seas today, winds will begin to increase on Monday ahead of an approaching frontal system. Winds will reach cautionary levels late Monday and then advisory levels by Tuesday morning. Gale conditions are possible for a portion of Tuesday afternoon and evening in the wake of the cold front. Winds will finally drop below advisory levels on Wednesday evening.
7 Day Forecast for Marine Location Near Mexico Beach, FLHourly EDIT Help
Area Discussion for -  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus62 ktae 181740|
area forecast discussion
national weather service tallahassee fl
140 pm edt Sun mar 18 2018
Aviation [through 18z Monday]
MVFR CIGS continue at ecp and dhn at this hour withVFR conditions
elsewhere. A complex of shra tsra will affect all terminals this
afternoon and evening, reducing conditions to MVFR ifr conditions
across the region. A second wave of tsra is possible overnight,
which would again yield reduced conditions at all TAF sites along
with potentially gusty winds. Confidence in timing location of
this second wave is low at this time, so changes in future taf
packages are possible. Southerly prevailing wind AOB 10kts.
Prev discussion [1121 am edt]
Near term [through today]
Areas of low clouds and fog will prevail through this morning as the
boundary layer remains nearly saturated under moist southwesterly
flow. A front currently stretching from texas northeastward into
eastern tennessee and north carolina will sag southward this morning
and become quasi-stationary near our northern areas through the
afternoon and early evening, providing forcing for scattered showers
and thunderstorms. Mostly cloudy to overcast skies will persist
through the afternoon, which will limit instability throughout this
time. However, models suggest that MUCAPE values will range from 500
to 1500 j kg across most of our inland areas during the afternoon
and early evening. Effective bulk shear will be strong throughout
this period with values near 50 kts across our area. Low-level shear
and helicity values appear to be fairly weak during this time.
Latest cam guidance shows a cluster of showers and embedded
thunderstorms moving into our western regions during the afternoon,
spreading into SW georgia by the early evening.
The lack of strong instability could limit severe potential across
our area during this time, despite strong bulk shear values. Also,
weak mid-level lapse rates will be present across our area during
the afternoon and early evening, further limiting the chances of
severe weather. The SPC has a slight risk of severe weather across
our area for day 1, but due to the aforementioned setup, most of the
threat should come later tonight and will be described in the short
term discussion. Persistent southwesterly flow will result in warm
temperatures again today, with highs reaching the upper 70s and
lower 80s across our inland areas and mid 70s along the gulf
Short term [tonight through Tuesday]
Multiple waves of severe weather will be possible during the short
term period, though there is some degree of uncertainty in the
early portion of the forecast. Overall, the severe parameters are
quite favorable, but after the initial warm front lifts north and
prior to the passage of a cold front on Tuesday, a well defined
forcing mechanism is lacking, which complicates overall event
timing with the forecast for Monday.
At the start of the period, a warm frontal boundary will be
located just north of the florida border and rapidly retreating
northward. After day time heating, this boundary should serve as a
focus for shower and thunderstorm development early in the
evening. It's at this time with deep layer shear exceeding 55kt
and modest instability that a few severe storms are possible,
generally with damaging winds and large hail the primary threats.
However, prior to 12z Monday, low level shear is supportive for
tornadoes - being sufficiently curved, that storms interacting
with the warm front would have a non-zero tornado potential. Even
after the boundary has cleared to the north, several pieces of
guidance suggests storms will continue to develop across the
region, and with favorable instability shear fields, expect the
severe threat to continue throughout the overnight hours.
By Monday, much of the forecast is dependent on how much
convective activity occurred during the overnight period, as this
could delay any storm development on Monday. The general consensus
of the guidance is that there will be some breaks in the cloud
cover mid-morning which should allow for instability to increase
considerably intermixed with deep layer shear values in excess of
55 kts. As the airmass destabilizes significantly into the
afternoon hours on Monday, numerous thunderstorms should develop,
likely becoming severe quickly. All severe hazards are possible
with this activity on Monday afternoon and evening.
By Monday evening, the region should be in a lull between the
departing storms from the afternoon and an approaching cold front
that at 00z tues is anticipated to be back across southeastern
louisiana. Model soundings show mid level lapse rates steepening
considerably after 00z tues and though thermal profiles show
diminishing surface-based instability after 00z, this looks as
though it will be overcome by the time the surface cold front
approaches the forecast area after 06z tues. Thus, with sufficient
instability, forcing, and increasing shear (possibly in excess of
60 kt), expect a line of severe thunderstorms to organize along
the cold front and progress across the forecast area late Monday|
night and through the morning hours on Tuesday. The dominant
severe weather threat at this time would be damaging destructive
straight line winds.
1. Multiple waves of severe weather are possible across the region
starting this evening and continuing through Tuesday morning.
2. The severe threat on Sunday evening and Sunday night will
initially be more focused across southeastern alabama and
southwestern georgia, before spreading into the rest of the
region prior to daybreak Monday.
3. Monday's storms are expected to be region-wide and will be
capable of producing all severe hazards - damaging winds, large
hail, and isolated tornadoes.
4. A strong cold front will move into the region Monday night. A
line of severe storms will likely develop along the cold front and
move quickly across the region late Monday night and into Tuesday
morning. The dominant threat with these storms are
damaging destructive straight line winds.
Long term [Tuesday night through Sunday]
Much more tranquil weather will arrive across the region by
Tuesday night and continue throughout the long term period. Cooler
and drier air will overspread the region in the wake of a cold
front Tuesday night and an area of high pressure will build over
the region by Thursday. Model guidance seems to have come into
better agreement on the last couple of cycles that though
temperatures will be below normal on Wednesday Thursday, the
overnight lows should remain a few degrees above freezing.
By Friday, high pressure shifts east of the region and the warmup
will begin with temperatures by Saturday and for the remainder of
the weekend a few degrees above normal. Precipitation is not
currently anticipated within the long term period.
After generally light winds and low seas today, winds will begin
to increase on Monday ahead of an approaching frontal system.
Winds will reach cautionary levels late Monday and then advisory
levels by Tuesday morning. Gale conditions are possible for a
portion of Tuesday afternoon and evening in the wake of the cold
front. Winds will finally drop below advisory levels on Wednesday
Moist conditions with scattered showers and thunderstorms will
prevail through the next couple of days. As a result, no fire
weather concerns are anticipated despite high dispersion values
possible on Monday.
Average rainfall with this system is expected to be in the 1-3
inch range with isolated heavier totals possible. Because the
event will be spread over a couple of days, widespread flooding
concerns are not anticipated. However, some localized flooding is
possible if some of the stronger storms train over urbanized areas
prone to flooding, especially on Sunday night and into Monday.
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 66 80 66 79 46 80 70 60 30 0
panama city 68 76 64 73 49 70 70 60 20 0
dothan 65 80 61 75 44 90 60 50 20 10
albany 64 80 62 77 45 90 70 60 30 10
valdosta 65 77 68 79 47 90 70 60 50 10
cross city 63 76 68 77 47 50 60 50 70 10
apalachicola 68 75 67 75 50 60 70 60 40 0
Tae watches warnings advisories
Near term... Pullin
short term... Lahr
long term... Godsey
fire weather... Godsey
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|
|PACF1 - 8729108 - Panama City, FL||13 mi||50 min||SW 11 G 12||71°F||66°F||1012.8 hPa|
|PCBF1||25 mi||50 min||S 6 G 8||70°F||66°F||1013.1 hPa|
|APCF1 - 8728690 - Apalachicola, FL||33 mi||50 min||SSW 7 G 8||72°F||64°F||1012.8 hPa|
|APXF1 - Apalachicola Reserve, FL||35 mi||113 min||SSW 8.9||76°F||70°F|
Wind History for Panama City, FL(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Tyndall Air Force Base, FL||7 mi||42 min||SSW 8||10.00 mi||Partly Cloudy||76°F||69°F||79%||1012.8 hPa|
Wind History from PAM (wind in knots)
|1 day ago||S||SW||S||S||S||SE||SE||SE||SE||S||S||S||S||S||S||SE||E||Calm||S||S||S||S||S||S|
|2 days ago||SW||W|
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Sun -- 12:46 AM CDT 0.83 feet High Tide
Sun -- 06:47 AM CDT Sunrise
Sun -- 06:55 AM CDT 0.38 feet Low Tide
Sun -- 07:40 AM CDT Moonrise
Sun -- 01:13 PM CDT 0.62 feet High Tide
Sun -- 06:43 PM CDT 0.29 feet Low Tide
Sun -- 06:52 PM CDT Sunset
Sun -- 08:08 PM CDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
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|Laird Bayou |
Click for Map
Sun -- 01:51 AM CDT 0.81 feet High Tide
Sun -- 06:48 AM CDT Sunrise
Sun -- 07:40 AM CDT Moonrise
Sun -- 09:34 AM CDT 0.43 feet Low Tide
Sun -- 02:01 PM CDT 0.53 feet High Tide
Sun -- 06:52 PM CDT Sunset
Sun -- 08:08 PM CDT Moonset
Sun -- 08:23 PM CDT 0.34 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  HelpWeather Map
GOES Local Image of Southeast 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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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.