Monday, November20, 2017 L-36.com


Marine Weather and Tides
Upper Grand Lagoon, 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 6:11AMSunset 4:45PM Monday November 20, 2017 7:39 AM CST (13:39 UTC) Moonrise 8:55AMMoonset 7:41PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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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GMZ750 Apalachee Bay Or Coastal Waters From Keaton Beach To Ochlockonee River Fl Out To 20 Nm- Coastal Waters From Apalachicola To Destin Fl Out 20 Nm- Coastal Waters From Ochlockonee River To Apalachicola Fl Out To 20 Nm- Coastal Waters From Suwannee River To Keaton Beach Out 20 Nm- 220 Am Est Mon Nov 20 2017
.small craft advisory in effect until 4 am est early this morning...
Today..East winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 3 seconds. Protected waters a light chop.
Tonight..East winds 15 knots. Seas 2 to 3 feet. Dominant period 3 seconds. Protected waters a moderate chop. Chance of rain after midnight.
Tuesday..East winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 3 seconds. Protected waters a light chop. Chance of rain in the morning, then showers likely and slight chance of Thunderstorms in the afternoon.
Tuesday night..Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Protected waters a light chop. Chance of rain.
Wednesday..Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Protected waters a light chop. Slight chance of rain in the morning, then chance of rain in the afternoon.
Wednesday night..Northeast winds 15 knots. Seas 1 to 2 feet. Protected waters a moderate chop. Chance of rain.
Thursday..Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Protected waters a light chop. Chance of rain.
Thursday night..Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Protected waters a moderate chop. Slight chance of rain.
Friday..Northeast winds 10 knots. Seas 1 to 2 feet. Protected waters a light chop.
GMZ700 Synopsis For The Suwannee River To Destin Out To 60 Nm 220 Am Est Mon Nov 20 2017
Synopsis.. The small craft advisory currently in effect will be allowed to expire this morning, as winds and seas will continue to decrease through this afternoon. Cautionary conditions will return offshore tonight, with easterly winds between 15 and 20 knots as seas of 2 to 4 feet. Winds will shift to the northeast Tuesday night into Wednesday morning, with speeds remaining above 10 knots through the remainder of the period.

7 Day Forecast for Marine Location Near Upper Grand Lagoon, FL
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location: 30.17, -85.76     debug


Area Discussion for -
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Fxus62 ktae 200727
afdtae
area forecast discussion
national weather service tallahassee fl
227 am est Mon nov 20 2017

Near term [through today]
Surface ridging will move east across the southeast underneath a
broad full CONUS trough. Low level flow will become easterly today
as the ridge moves east, resulting in an increase in low-level
moisture and the development of low cloudiness. Low clouds are
forecast to move into the suwannee valley late this afternoon and
move through the entire region beginning this evening. Afternoon
highs today will remain a few degrees below normal, generally in the
middle to upper 60s.

Short term [tonight through Wednesday]
An active pattern will commence during the short term period, as
upper level quasi-zonal flow gives way to troughing on Tuesday with
the approach of the first of several shortwave troughs that will
traverse the region. Increasing cloud cover and chances for showers
and isolated embedded thunderstorms across much of the region can be
expected Tuesday, as a surface low develops over the eastern gulf of
mexico and moves northeastward. The highest rain chances will likely
be confined to the florida panhandle and big bend region through
Tuesday night. A second upper level shortwave trough in the southern
branch of the jet will approach the region Wednesday, as a
reinforcing shortwave trough in the northern branch of the
jet stream dives southeastward into the tn valley southeast. This
will keep rain chances elevated across portions of the region,
with the eastern half of the CWA likely seeing the best chances
for rainfall Wednesday. This system will linger into the long term
period, discussed below.

Temperatures will remain near average for late november through the
period, with highs in the upper 60s to low 70s and lows in the low
to mid 50s.

Long term [Wednesday night through Monday]
The aforementioned system from the short term period will
gradually clear the tri-state region during thanksgiving day,
giving way to drier and slightly cooler conditions through the
weekend. Near average temperatures will persist through much of
the period, as the overall upper level pattern will remain
stagnant, with ridging across the west and troughing over the
eastern conus. Operational model guidance indicates the potential
for another cold front to sweep across the region late this
weekend, but remain scant on any potential rain chances at this
time.

Aviation [through 06z Tuesday]
Vfr conditions under scattered high clouds will prevail through the
afternoon at all terminals. Low clouds will overspread vld, tlh, and
aby late in the TAF period.

Marine
The small craft advisory currently in effect will be allowed to
expire this morning, as winds and seas will continue to decrease
through this afternoon. Cautionary conditions will return offshore
tonight, with easterly winds between 15 and 20 knots as seas of 2
to 4 feet. Winds will shift to the northeast Tuesday night into
Wednesday morning, with speeds remaining above 10 knots through
the remainder of the period.

Fire weather
Hazardous fire weather conditions are not expected over the next
several days. The potential for rain returns to the forecast Tuesday
through the end of the week.

Hydrology
Rain chances are increasing this week as a low is expected to
develop in the gulf. 2 to 2.5 inches of rainfall is predicted near
the coast. 1 to 1.5 inch is expected farther inland. River flooding
is not expected since river levels are still low.

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 68 51 72 54 70 0 10 50 30 30
panama city 64 54 70 55 70 0 20 50 30 30
dothan 63 48 66 50 68 0 10 40 20 20
albany 65 49 70 51 68 0 0 30 20 20
valdosta 68 50 74 54 69 0 0 40 40 30
cross city 70 52 75 56 73 0 0 70 40 50
apalachicola 64 55 72 56 71 0 20 60 30 30

Tae watches warnings advisories
Fl... None.

Ga... None.

Al... None.

Gm... Small craft advisory until 4 am est early this morning for
apalachee bay or coastal waters from keaton beach to
ochlockonee river fl out to 20 nm-coastal waters from
ochlockonee river to apalachicola fl out to 20 nm-coastal
waters from suwannee river to keaton beach out 20 nm-
coastal waters from apalachicola to destin fl out 20 nm-
waters from suwannee river to apalachicola fl from 20 to 60
nm-waters from apalachicola to destin fl from 20 to 60 nm.

Near term... Harrigan
short term... Pullin
long term... Pullin
aviation... Harrigan
marine... Pullin
fire weather... Harrigan
hydrology... Nguyen


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PACF1 - 8729108 - Panama City, FL 5 mi51 min NE 7 G 9.9 43°F 69°F1023.2 hPa
PCBF1 7 mi51 min NNE 6 G 11 43°F 69°F1023.3 hPa
APCF1 - 8728690 - Apalachicola, FL 52 mi51 min NNE 8 G 9.9 43°F 66°F1022.7 hPa
APXF1 - Apalachicola Reserve, FL 53 mi114 min N 4.1 40°F 37°F

Wind History for Panama City, FL
(wind in knots)    EDIT      (on/off)   Help
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N12
G21
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E5
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SW9
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N17
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N12
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NE6
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G5

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tyndall Air Force Base, FL11 mi43 minNE 610.00 miFair42°F34°F75%1023.3 hPa
Panama City - Northwest Florida Beaches International Airport, FL13 mi46 minNW 410.00 miFair34°F32°F92%1024.1 hPa

Wind History from PAM (wind in knots)
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Last 24hrN14
G21
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N14N10N11N9
G15
N7N9N7N6N8N7N6N9N7N6N5N8N9
G15
NE7NE7NE6NE6
1 day agoE4E4S11S16S12--S12S11--S10SW10SW10SW10SW11SW12W10SW8W11N16
G32
N12
G20
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G25
N17
G22
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G26
N13
G22
2 days agoE4E4NE3SE6E3SW3SW7SW6SW4S3CalmCalmCalmE3CalmCalmCalmCalmCalmCalmCalmCalmE4E5

Tide / Current Tables for Alligator Bayou, St. Andrew Bay, Florida
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Alligator Bayou
Click for Map
Mon -- 06:12 AM CST     Sunrise
Mon -- 07:54 AM CST     Moonrise
Mon -- 08:07 AM CST     -0.15 feet Low Tide
Mon -- 04:44 PM CST     Sunset
Mon -- 06:40 PM CST     Moonset
Mon -- 10:11 PM CST     1.61 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.41.20.90.60.40.2-0-0.1-0.1-0.1-0.100.10.30.40.60.811.11.31.51.61.61.6

Tide / Current Tables for Panama City Beach, Florida
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Panama City Beach
Click for Map
Mon -- 05:40 AM CST     -0.03 feet Low Tide
Mon -- 06:13 AM CST     Sunrise
Mon -- 07:54 AM CST     Moonrise
Mon -- 04:44 PM CST     Sunset
Mon -- 06:41 PM CST     Moonset
Mon -- 08:20 PM CST     1.58 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.10.80.50.30.1-0-0000.10.10.30.40.60.70.80.91.11.31.51.61.61.51.3

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for (8,2,3,4)
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Ground Weather Radar Station Northwest Florida
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weather_mapweather_map weather_map

Gulf Stream Current


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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.