Thursday, July18, 2019 L-36.com


Marine Weather and Tides
Upper Grand Lagoon, FL

Version 3.4
NOTICE
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:51AMSunset 7:45PM Thursday July 18, 2019 10:40 PM CDT (03:40 UTC) Moonrise 9:15PMMoonset 7:19AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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
GMZ750 Expires:201907190830;;276842 Fzus52 Ktae 190032 Cwftae Coastal Waters Forecast For Florida Big Bend And Eastern Panhandle National Weather Service Tallahassee Fl 832 Pm Edt Thu Jul 18 2019 Gulf Coastal Waters From The Mouth Of The Suwannee River To Okaloosa-walton County Line Out To 60 Nm. Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves...along With The Occasional Height Of The Average Highest 1/10 Of The Waves. Gmz730-750-752-755-765-770-772-775-190830- 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- 832 Pm Edt Thu Jul 18 2019 /732 Pm Cdt Thu Jul 18 2019/
Rest of tonight..West winds 10 knots. Seas 1 foot. Dominant period 4 seconds. Protected waters a light chop. Slight chance of showers and Thunderstorms after midnight.
Friday..Southwest winds 10 knots. Seas 1 foot. Dominant period 3 seconds. Protected waters a light chop. Chance of showers and Thunderstorms.
Friday night..Southwest winds 5 to 10 knots. Seas 1 foot. Dominant period 4 seconds. Protected waters smooth. Chance of showers and Thunderstorms.
Saturday..Southwest winds 5 to 10 knots. Seas 1 foot. Dominant period 4 seconds. Protected waters mostly smooth. Chance of showers and Thunderstorms.
Saturday night..Southwest winds 5 to 10 knots. Seas 1 foot. Dominant period 4 seconds. Protected waters mostly smooth. Slight chance of showers and Thunderstorms.
Sunday..Northwest winds 5 to 10 knots becoming west. Seas 1 foot. Protected waters mostly smooth. Chance of showers and Thunderstorms.
Sunday night..West winds 5 to 10 knots. Seas 1 foot. Protected waters mostly smooth. Chance of showers and Thunderstorms.
Monday..Southwest winds 10 knots. Seas 1 foot. Protected waters mostly smooth. Chance of showers and Thunderstorms.
Monday night..West winds 10 knots. Seas 1 to 2 feet. Protected waters a light chop. Chance of showers and Thunderstorms.
Tuesday..West winds 10 to 15 knots. Seas 1 to 2 feet. Protected waters a light chop. Chance of showers and Thunderstorms.
GMZ700 Synopsis For The Suwannee River To Okaloosa-walton County Line Out To 60 Nm 832 Pm Edt Thu Jul 18 2019
Synopsis.. West winds of 5 to 10 knots will prevail with seas 1 foot. Chance of showers and Thunderstorms expected each day. Winds and seas expected to increase late Monday with the approach of a front.


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


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 ktae 190029
afdtae
area forecast discussion
national weather service tallahassee fl
829 pm edt Thu jul 18 2019

Update
Minor tweaks to the pops over the next 2 hours given current radar
trends. By 03z (11 pm), everything should dissipate and a quiet,
warm night will be on tap with lows in the mid-upper 70s.

Prev discussion [716 pm edt]
Near term [through tonight]
A combination of mid-level shortwave energy and lee effects has
resulted in a surface trough down the eastern seaboard through the
tri-state region. This trough and the big bend seabreeze have forced
convection across the eastern 2 3 of the region, and isolated storms
elsewhere. While there are likely to be strong storms with gusty sub-
severe level winds, the severe threat will remain isolated.

Convection should come to an end region-wide between 00-03z.

Short term [Friday through Saturday night]
Despite the presence of a ridge aloft, moisture is expected to
advect into our area thanks to an upper shortwave to the northwest.

Convection will initiate offshore and in our northern counties early
in the day, with MAX pop 50-70% increasing south to north in the
afternoon. Saturday storms will also initiate offshore, but progress
inland and to the west into the afternoon with MAX pop 50-60%. Pw
values will be above 2 inches both days, so locally heavy rainfall
during thunderstorms is possible.

Long term [Sunday through Thursday]
Going into Sunday, ridging will build slightly from the east,
introducing some drier air into the region. Highest rain chances on
Sunday will be 50-60% and focused to the west. An amplifying upper
trough will bring a front in from the northwest and stall to our
east. Pops will be elevated from Monday through the rest of the
period as a result, with highest rain chances (50-70%) on Tuesday.

The persistent showers and thunderstorms with pw > 2 inches may
raise flooding concerns. Shear and instability values are also worth
watching as this system draws closer.

Aviation
[through 00z Saturday]
tsra near dhn and aby this evening have moved on, but may linger
near these sites for another hour.VFR conditions should prevail
through the TAF period outside of scattered tsra Friday afternoon.

Winds will predominantly be from the west or southwest.

Marine
West winds of 5 to 10 knots will prevail with seas 1 foot. Chance of
showers and thunderstorms expected each day. Winds and seas expected
to increase late Monday with the approach of a front.

Fire weather
Red flag conditions are not expected for the next several days with
relative humidity values remaining above critical levels.

Hydrology
Scattered showers and thunderstorms may cause localized flooding
through the weekend. With a front expected to stall in the region
next week, persistent storms with high rain rates could cause
isolated flash flooding, but river flooding is not expected 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 73 93 73 92 73 10 50 20 50 20
panama city 79 89 76 88 77 0 40 30 50 20
dothan 74 91 73 91 73 20 70 20 60 20
albany 75 92 74 93 75 20 60 30 50 20
valdosta 73 93 72 93 73 10 50 20 50 20
cross city 75 90 74 92 75 10 40 20 30 10
apalachicola 78 89 76 88 76 10 30 20 50 10

Tae watches warnings advisories
Fl... None.

Ga... None.

Al... None.

Gm... None.

Update... Nguyen
near term... Harrigan
short term... Skeen
long term... Skeen
aviation... Nguyen
marine... Skeen
fire weather... Dvd
hydrology... Skeen


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
PACF1 - 8729108 - Panama City, FL 5 mi59 min SW 5.1 G 7 89°F
PCBF1 7 mi59 min SW 6 G 8 86°F 88°F1018.4 hPa
APCF1 - 8728690 - Apalachicola, FL 52 mi59 min WNW 1 G 2.9 83°F 88°F1018.6 hPa

Wind History for Panama City, FL
(wind in knots)    EDIT      (on/off)   Help
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
-12
PM
7
PM
8
PM
9
PM
Last
24hr
SW8
S6
G9
S6
SW8
SW6
W6
W5
NW3
N5
N4
NW4
NW4
G7
SW4
SW8
SW8
SW8
SW8
G11
SW9
SW10
G13
SW10
G13
SW7
G10
SW6
SW7
G10
1 day
ago
SW3
N1
NE1
E2
NE1
E2
NE1
--
E2
NE3
E3
SW1
W3
S4
SW6
SW8
SW10
SW10
G13
SW8
G11
SW8
G11
SW6
G9
SW5
G9
SW8
2 days
ago
SE2
SE3
SE3
SE3
E3
E4
NE3
NE2
NE3
NE2
E3
SW2
SW6
SW5
SW8
SW7
SW7
SW6
SW6
SW4
SW4
SW4
SW3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tyndall Air Force Base, FL11 mi1.7 hrsWSW 510.00 miFair84°F76°F78%1017.9 hPa
Panama City - Northwest Florida Beaches International Airport, FL13 mi48 minN 010.00 miFair82°F75°F79%1018.7 hPa

Wind History from PAM (wind in knots)
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
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
Last 24hrSW6SW5W5W4W4NW4NW3CalmN3CalmN3W4SW7SW5SW7W9SW10SW10SW9SW10SW7SW4SW5SW3
1 day ago--CalmCalmCalmCalmCalmCalmCalmE3E3CalmSW3SW7SW6SW8SW10W11SW10W10W8W6W3W4SW5
2 days agoCalmE3E4SE5CalmCalmCalmE3CalmCalmCalmS4S6SW7W6SW9W7W6W5W4W4SW3W3Calm

Tide / Current Tables for Alligator Bayou, St. Andrew Bay, Florida
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Panama City Beach, Florida
   EDIT      (on/off)   Help   One Week of Data
Panama City Beach
Click for Map
Thu -- 05:53 AM CDT     Sunrise
Thu -- 07:19 AM CDT     Moonset
Thu -- 09:11 AM CDT     1.74 feet High Tide
Thu -- 07:23 PM CDT     0.10 feet Low Tide
Thu -- 07:45 PM CDT     Sunset
Thu -- 09:14 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
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
0.30.50.60.70.811.31.51.71.71.71.61.51.41.10.80.50.30.20.10.10.10.10.2

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (23,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Northwest Florida
   (on/off)   Help
weather_mapweather_map weather_map

Gulf Stream Current


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.