Saturday, May27, 2017 L-36.com


Marine Weather and Tides
Point Clear, AL

Version 3.4
What's New / NOTES
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 5:49AMSunset 7:48PM Saturday May 27, 2017 12:26 PM CDT (17:26 UTC) Moonrise 7:48AMMoonset 9:56PM Illumination 5% 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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GMZ631 Southern Mobile Bay-mississippi Sound- 1134 Am Cdt Sat May 27 2017
.small craft should exercise caution this afternoon...
Rest of today..South winds 8 to 13 knots increasing to 13 to 18 knots. A light chop becoming choppy. Slight chance of showers.
Tonight..South winds 13 to 18 knots becoming southwest 8 to 13 knots. Choppy becoming a light chop.
Sunday..Southwest winds 8 to 13 knots increasing to 10 to 15 knots. A light chop becoming a moderate chop. Slight chance of showers in the morning.
Sunday night..Southwest winds 10 to 15 knots. A moderate chop. Slight chance of showers and Thunderstorms.
Monday..Southwest winds 8 to 13 knots. A light chop. Chance of showers and Thunderstorms.
Monday night..Southwest winds 8 to 13 knots becoming 5 to 10 knots. Smooth to a light chop. Chance of showers and Thunderstorms.
Tuesday..Southwest winds 8 to 13 knots. A light chop. Chance of showers and Thunderstorms.
Tuesday night..Southeast winds 8 to 13 knots. Smooth to a light chop. Slight chance of showers and Thunderstorms.
Wednesday..Southeast winds 8 to 13 knots. A light chop. Chance of showers and Thunderstorms.
Wednesday night..Southeast winds 8 to 13 knots. Smooth to a light chop. Slight chance of showers and Thunderstorms.
GMZ600 Synopsis For Destin Fl To Pascagoula Ms Out 60 Nm Including Mobile Bay- 1134 Am Cdt Sat May 27 2017
Synopsis..A light to moderate south to southwest wind flow will continue over the marine area through Monday as high pressure slowly shifts east of the area. A weak frontal boundary will stall near the coast Monday night into Tuesday leading to a decrease in winds and seas through midweek. Better rain chances can be expected early in the week as the weak front nears the coast. A better onshore flow can be expected later in the week as high pressure becomes reestablished over the north central gulf.

7 Day Forecast for Marine Location Near Point Clear, AL
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location: 30.42, -88     debug


Area Discussion for - Mobile/Pensacola, FL
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Fxus64 kmob 271722
afdmob
area forecast discussion
national weather service mobile al
1222 pm cdt Sat may 27 2017

Discussion Updated for latest aviation discussion below.

Aviation
18z issuance... Challenging aviation forecast this afternoon with
stubborn low level inversion hanging around through early
afternoon. Generally expectingVFR to MVFR conditions this
afternoon with southerly to southwesterly winds around 5 to 10
knots. Increasing moisture advection this evening will lead to
lowering ceilings shortly after sunset, MVFR initially before
becoming ifr by around 06z. Winds will remain in the 5 to 10 knot
range overnight and into the morning from the south and southwest.

Low ceilings look to persist into the day light hours on
Saturday. Rr 05

Prev discussion issued 1033 am cdt Sat may 27 2017
discussion... See updated information below.

Update... Did a quick update to the current zone forecast mainly
to add a small chance for a brief shower or two for most locations
in the forecast area this morning. With ample moisture in the
lower levels combined with weak layer lift mostly trapped below a
good capping inversion during the morning hours this pattern will
continue to result in a few brief light showers or light
sprinkles for most areas this morning. With better mixing in the
boundary layer from daytime heating in the afternoon rain chances
and low clouds will decrease in coverage by mid to late afternoon
and continue through the evening hours. 32 ee
marine... Did a quick update to the current marine forecast
mainly to increase winds slightly mostly along the coast and over
inland bays and sounds due to local seabreeze effects generated by
daytime heating. Similar to yesterday small craft should exercise
caution over most areas in the mobile bay during the afternoon and
early evening hours. 32 ee
prev discussion... Issued 632 am cdt Sat may 27 2017
discussion... Updated for latest aviation discussion below.

Aviation...

12z issuance... Ifr MVFR conditions with low clouds this morning
will becomeVFR by this afternoon. Another round of low clouds can
be expected tonight into the Sunday morning. 13
prev discussion... Issued 354 am cdt Sat may 27 2017
near term now through Saturday night ...

surface and upper level ridging will continue across the area today
before gradually shifting eastward tonight. Meanwhile, mostly cloudy
skies can be expected this morning as low level moisture around 925
mb is advected into the area. Skies will become partly cloudy
through the morning as mixing increases. Another dry day expected
with the upper ridge overhead and strong subsidence continuing.

Highs this afternoon will warm 4-5 degrees over those observed on
Friday as 850 mb temps warm. Higher dewpoints will also move into
the area through the day, creating heat index values in the low to
mid 90s by the afternoon.

The upper and sfc ridge begin to move east of the area tonight. This
will continue to bring moisture back into the region with another
round of low clouds expected overnight. Lows tonight will range from
the low 70s inland to mid 70s along the coast. 13
short term Sunday through Monday night ...

ridging, both at the surface and aloft, will begin to weaken and
slide east Sunday as a shortwave trough pushes into the mid-
mississippi valley. This is expected to aid in pushing a cold front
into the mid-south Sunday evening and south east of the natchez
trace by Monday morning. Moisture will start to increase as the
ridging retreats, resulting in forecast precipitable water values
approaching 2 to 3 standard deviations above climatological means by
Sunday evening.

I think Sunday will largely remain dry across our area. A few of the
convection allowing models are hinting that a few showers or
thunderstorms could develop. I suppose this is plausible given
weakening ridging and increasing low-level moisture. However,
forecast soundings continue to strong a "fairly healthy" subsidence
inversion just below 850 mb. This is evidence of lingering ridging
over the region and should preclude much in the way of convection.

I'll go below precipitation probabilities in the model blends, but
maintain non-zero odds of seeing convection Sunday afternoon
(especially north west).

Odds of seeing precipitation increase Sunday night into Monday as
the cold front moves into the forecast area. Diminishing cross-
isobaric flow Monday will result in the front's forward speed
slowing as it heads toward the gulf coast. Ample instability,
moisture, and forcing should be present by Monday afternoon to
result in the development of scattered to numerous showers and
thunderstorms.

Convective coverage should be the greatest from southeast
mississippi into interior portions of the forecast area. Naefs
integrated water vapor transport suggests values approaching 3
standard deviations above climatological means in this region.

Convective coverage should diminish somewhat after sunset Monday,
despite the presence of increased synoptic scale forcing. 02
long term Tuesday through Friday ...

precipitation probabilities should remain elevated through mid-week
as the cold front slowly sinks offshore. With the departure of broad
upper-level troughiness over the area, the front should gradually
dissipate. Less convective coverage is then expected for Thursday
and Friday as ridging attempts to reassert itself across the
region. Most of the convective development for days 6 and 7 should exhibit
a stronger diurnal trend. 02
marine...

a light to moderate southwest wind flow will continue through Sunday
as high pressure shifts east of the area. A weak cold front will
stall along the coast Monday night and will have little effect on
winds and seas through late Tuesday. It will bring an increase in
rainfall coverage. Winds become light and variable on Tuesday due to
the proximity of the front. Surface high pressure becomes
established on Wednesday with a return to more of a normal sea-
breeze pattern by late week. 13

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
MBLA1 - Middle Bay Light, AL 1 mi56 min SSW 8 78°F 1019 hPa
WBYA1 9 mi38 min 76°F
CRTA1 - Cedar Point, AL 11 mi56 min SSW 5.1 79°F 1019.3 hPa
BSCA1 - Bon Secour, AL 11 mi86 min SSW 6
DPIA1 - Dauphin Island, AL 12 mi26 min S 4.1 G 5.1 80°F 1018.8 hPa (+0.3)
FMOA1 - 8734673 - Fort Morgan, AL 13 mi38 min S 5.1 G 5.1 79°F
KATA1 - Katrina Cut, AL 16 mi56 min S 5.1 78°F 1019.6 hPa
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 16 mi38 min SSE 5.1 G 8 80°F 77°F1019.6 hPa
PTOA1 17 mi38 min 81°F 76°F
MHPA1 - Meaher Park, AL 17 mi56 min S 6 78°F 1019.6 hPa
OBLA1 - 8737048 - Mobile State Docks, AL 20 mi38 min 80°F 78°F1018.9 hPa
GDXM6 - Grand Bay Reserve, MS 23 mi101 min SSW 7 80°F 1020 hPa75°F
PPTA1 25 mi56 min S 5.1 81°F 1019.3 hPa
ULAM6 - 8741041 - Dock E. Port of Pascagoula, MS 27 mi38 min 78°F
RARM6 - 8741094 - Range A rear, Pascagoula, MS 28 mi38 min SSW 7 G 8 82°F 1018.7 hPa
PTBM6 - 8741003 - Petit Bois Island, MS 30 mi38 min S 4.1 G 5.1 80°F 1019.8 hPa
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 30 mi38 min 76°F
DKCM6 - 8741501 - Dock C, Pascagoula, MS 30 mi38 min S 7 G 8 79°F 1019 hPa
42012 - Orange Beach AL Buoy 34 mi36 min S 3.9 G 3.9 78°F 78°F2 ft1019.2 hPa (+0.8)75°F
PCLF1 - 8729840 - Pensacola, FL 42 mi38 min 83°F 79°F1019.6 hPa
42067 - USM3M02 43 mi166 min SW 5.8 G 5.8 77°F 2 ft1018.4 hPa75°F

Wind History for Dauphin Island, AL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sonny Callahan Airport, AL7 mi31 minSW 510.00 miOvercast81°F73°F79%1019.3 hPa
Mobile, Mobile Downtown Airport, AL16 mi33 minSE 910.00 miMostly Cloudy81°F75°F85%1019.2 hPa
Jack Edwards Airport, AL20 mi31 minSW 710.00 miMostly Cloudy84°F74°F73%1019.3 hPa
Mobile, Mobile Regional Airport, AL22 mi30 minSW 810.00 miMostly Cloudy84°F72°F67%1018.7 hPa

Wind History from CQF (wind in knots)
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Last 24hrS6S7S6S9
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S5S4S4CalmCalmCalmS5S5S4S5CalmCalmCalmCalmCalmCalmSW3SW3SW4SW4
1 day agoNW8W5W7SW5SW6SW4SW4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS6S11S5S10
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2 days agoNW6NW9
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W7W5W5W6W6NW8W6W7NW5NW5W4NW5W3W3CalmNW3W5W5W6W7W7
G15

Tide / Current Tables for Gulfport Harbor, Mississippi Sound, Mississippi
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Gulfport Harbor
Click for Map
Sat -- 05:52 AM CDT     Sunrise
Sat -- 07:48 AM CDT     Moonrise
Sat -- 11:56 AM CDT     2.20 feet High Tide
Sat -- 07:47 PM CDT     Sunset
Sat -- 09:56 PM CDT     Moonset
Sat -- 10:09 PM CDT     -0.50 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.2-00.20.50.711.21.51.71.92.12.22.22.121.71.30.90.40.1-0.2-0.4-0.5-0.5

Tide / Current Tables for Mobile Bay Entrance, Alabama Current
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Mobile Bay Entrance
Click for Map
Sat -- 12:11 AM CDT     0.00 knots Slack
Sat -- 05:52 AM CDT     Sunrise
Sat -- 06:49 AM CDT     2.50 knots Max Flood
Sat -- 07:48 AM CDT     Moonrise
Sat -- 12:46 PM CDT     -0.00 knots Slack
Sat -- 06:42 PM CDT     -2.63 knots Max Ebb
Sat -- 07:46 PM CDT     Sunset
Sat -- 09:56 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.10.511.51.92.32.52.52.42.11.71.20.5-0.2-0.8-1.5-2-2.4-2.6-2.6-2.5-2.2-1.8-1.3

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 Mobile/Pensacola, FL (13,3,4,5)
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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.