Tuesday, November21, 2017 L-36.com


Marine Weather and Tides
Perdido Beach, AL

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 6:19AMSunset 4:50PM Tuesday November 21, 2017 4:06 AM CST (10:06 UTC) Moonrise 9:52AMMoonset 8:33PM Illumination 7% Phase: Waxing Crescent; Moon at 3 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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GMZ633 Perdido Bay- 356 Am Cst Tue Nov 21 2017
Today..Northeast winds 5 to 10 knots becoming north. A light chop.
Tonight..North winds 8 to 13 knots increasing to 10 to 15 knots. A light chop becoming a moderate chop.
Wednesday..North winds 13 to 18 knots diminishing to 10 to 15 knots. Choppy becoming a moderate chop.
Wednesday night..North winds 13 to 18 knots diminishing to 10 to 15 knots. Choppy becoming a moderate chop.
Thursday..North winds 8 to 13 knots. A light chop.
Thursday night..North winds 8 to 13 knots. A light chop.
Friday..North winds 8 to 13 knots. A light chop.
Friday night..Northwest winds 3 to 8 knots. Smooth.
Saturday..West winds 8 to 13 knots. A light chop.
Saturday night..Northwest winds 10 to 15 knots. A moderate chop.
GMZ600 Synopsis For Destin Fl To Pascagoula Ms Out 60 Nm Including Mobile Bay- 356 Am Cst Tue Nov 21 2017
Synopsis..A light to moderate northeasterly flow will prevail over the marine area today. North to northeast flow will strengthen tonight through Wednesday night as a weak area of low pressure moves toward the eastern gulf of mexico and as a reinforcing cold front pushes across the marine area. Moderate northerly flow then continues through the end of the week as high pressure builds across the gulf of mexico.

7 Day Forecast for Marine Location Near Perdido Beach, AL
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location: 30.39, -87.43     debug


Area Discussion for - Mobile/Pensacola, FL
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Fxus64 kmob 210544
afdmob
area forecast discussion
national weather service mobile al
1144 pm cst Mon nov 20 2017

Discussion Updated for latest aviation discussion below.

Aviation
06z issuance...

vfr conditions will continue tonight with light and variable winds
overnight and into the day tomorrow. Dj 17

Prev discussion issued 943 pm cst Mon nov 20 2017
discussion... Updated for latest marine discussion below.

Marine...

opted to remove pops in the offshore waters for tonight as there
only appears to be increased low level cloudiness over the marine
zones. The dry air over head and subsequent inversion is
restricting the development of showers. Winds are easterly for now
but are expected to become more northerly throughout the night
and early morning. Dj 17
prev discussion... Issued 609 pm cst Mon nov 20 2017
discussion... Updated for latest aviation discussion below.

Aviation...

00z issuance...

vfr conditions expected through the forecast period with variable
to light northerly winds overnight and into tomorrow. Dj 17
prev discussion... Issued 252 pm cst Mon nov 20 2017
near term now through Tuesday ... Next short wave trof that has
moved east over the central plains early today will continue to
shift east reaching the lower mississippi river valley and the north
central gulf states during the day on tue. Near the sfc high
pressure generally over the SE CONUS and western atlantic will
continue to shift east through Tue afternoon. To the southeast most
of the model guidance continues to show a weak sfc trof low forming
over the NE gulf generally south of apalachicola progged to become
better developed and gradually shift east through late tue, then
weaken further to the east over the fl penisula as the next surge of
colder air moves south out over the northern gulf waters. With this
pattern expect a mix of Sun and clouds during the daylight hours
through Tue with a slight chance of showers occurring mostly east of
the i-65 corridor stretching offshore south of the western fl
panhandle occurring mostly during the day on tue.

Temps will continue to be on the cool side tonight, generally 2 to 4
degrees below seasonal averages, with lows ranging from the mid to
upper 30s for most locations generally north of the i-10 corridor
and the lower to mid 40s further south to the immediate coast. Highs
tue will run 2 to 3 degrees above seasonal averages, ranging from
the mid to upper 60s for areas generally north of the i-10 corridor
and the upper 60s to lower 70s further south to the immediate coast.

32 ee
short term Tuesday night through Thursday night ... The large
"5-wave" pattern shows an upper trof amplifying over the eastern
states during the period, and while several strong shortwaves move
through this larger scale pattern, a persistent deep layer
northerly flow is maintained over the forecast area during the
period. A cold front approaching from the west (associated with a
surface low well to the north) moves through the forecast area
Tuesday night followed by a surface ridge building into the
southeast states. The deep layer northerly flow results in
steadily decreasing deep layer moisture, and have gone with a dry
forecast through the period except for slight chance pops near
destin, florida Tuesday night when the frontal passage combined
with the best deep layer moisture could combine to produce
isolated patches of rain. It should be noted that during this
period an inverted surface trof will be located over the
easternmost portion of the gulf and later evolves into a surface
low centered over the east central gulf. Based on the
progressively drier deep layer air flowing into the region, no
precipitation is expected to be able to develop which will affect
the forecast area in response to this system. Lows Tuesday night
will be in the lower to mid 40s along and west of i-65, with mid
40s to lower 50s further to the east. Cooler temperatures follow
for Wednesday night and Thursday night in the wake of the cold
front. Wednesday night will see mid 30s to lower 40s along and
west of i-65 with lower to mid 40s further to the east, then
Thursday night will be a bit cooler with mid to upper 30s along
and west of i-65 and upper 30s to lower 40s further to the east.

Highs on Wednesday will be mostly in the mid 60s, then Thursday
will range from upper 50s well inland to the mid 60s closer to the
coast. 29
long term Friday through Monday ... A longwave upper trof over the
eastern states moves very slowly eastward off the east coast and
into the far western atlantic during the period, maintaining a
dry, deep layer northerly flow over the forecast area. Another
cold front approaches from the plains on Friday and moves through
the area on Saturday, but no precipitation is expected given
limited deep layer moisture and also that the front is not
particularly strong. Highs on Friday will be mostly in the mid 60s
then warm to upper 60s near 70 for Saturday ahead of the front.

Progressively cooler daytime highs follow for the remainder of the
period with highs on Monday mostly in the lower 60s. Lows Friday
night range from around 40 well inland to the upper 40s at the
coast, then trend cooler by Sunday night when mid to upper 30s are
expected over interior areas with lower 40s closer to the coast. 29
marine... A light easterly wind will continue through early this
evening then shift northeast overnight and on Tue mostly in response
to a weak sfc trof low forming over the northeast gulf generally
south of apalachicola fl. To the north another surge of cold air
will move south to the northern and central gulf waters by late tue
night into Wed leading to a moderate to occasionally strong offshore
flow late Wed through early Fri morning. Better rain chances are
also expected with this pattern with bulk of the precip remaining
east of pensacola fl throughout the week. Seas will subside to
around 2 feet through early Tue then gradually build to 4 to 5 feet
by early thu, then slowly subside to 2 to 3 feet by early fri
afternoon. Small craft will have to exercise caution with the better
offshore flow by midweek with possible small craft advisories mostly
over the open gulf waters Wed night into early thu. 32 ee

Mob watches warnings advisories
Al... None.

Fl... None.

Ms... None.

Gm... None.

This product is also available on the web at:
http: weather.Gov mob


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PCLF1 - 8729840 - Pensacola, FL 12 mi55 min 52°F 65°F1017.7 hPa
WBYA1 21 mi49 min 61°F
WKXA1 - Weeks Bay Reserve, AL 21 mi82 min 46°F 1017 hPa43°F
FMOA1 - 8734673 - Fort Morgan, AL 33 mi49 min ENE 11 G 13 56°F
DPIA1 - Dauphin Island, AL 36 mi67 min ENE 12 G 13 57°F 1016.9 hPa (-1.9)
PTOA1 37 mi49 min 49°F 42°F
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 38 mi49 min NNW 2.9 G 5.1 47°F 65°F1017.9 hPa
OBLA1 - 8737048 - Mobile State Docks, AL 39 mi55 min 49°F 66°F1017.7 hPa

Wind History for Pensacola, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pensacola Naval Air Station, FL7 mi11 minNNE 6 miFair50°F37°F63%1017.4 hPa
Pensacola - Pensacola International Airport, FL13 mi14 minNE 610.00 miFair50°F37°F63%1018 hPa
Jack Edwards Airport, AL15 mi12 minNNE 610.00 miFair47°F41°F79%1017.6 hPa
Sonny Callahan Airport, AL24 mi12 minNE 410.00 miFair45°F42°F93%1017.9 hPa

Wind History from NPA (wind in knots)
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Last 24hrN3N6N6N5E8E8NE8E65NE53NE4CalmCalmN4N4N4N5N4N5NE4N5NE5NE6
1 day agoN13
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2 days agoS9S9S8S11S12S12S11SW13SW13
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G26

Tide / Current Tables for Nix Point, Perdido Bay, Florida
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Nix Point
Click for Map
Tue -- 01:27 AM CST     0.86 feet High Tide
Tue -- 06:20 AM CST     Sunrise
Tue -- 08:51 AM CST     Moonrise
Tue -- 01:42 PM CST     -0.05 feet Low Tide
Tue -- 04:50 PM CST     Sunset
Tue -- 07:33 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.90.90.80.80.70.60.40.30.20.10-0-0-0-000.10.20.30.40.50.60.7

Tide / Current Tables for Entrance, Pensacola Bay, Florida
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Entrance
Click for Map
Tue -- 06:20 AM CST     Sunrise
Tue -- 08:51 AM CST     Moonrise
Tue -- 09:31 AM CST     -0.12 feet Low Tide
Tue -- 04:49 PM CST     Sunset
Tue -- 07:33 PM CST     Moonset
Tue -- 10:09 PM CST     1.18 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.10.90.80.60.40.20.1-0-0.1-0.1-0.1-0.1-00.10.20.30.50.60.80.91.11.11.21.2

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 Mobile/Pensacola, FL (5,6,7,8)
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Ground Weather Radar Station Mobile, AL
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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.