Thursday, April26, 2018 L-36.com


Marine Weather and Tides
Dauphin Island, AL

Version 3.4
What's New / NOTES
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 6:10AMSunset 7:28PM Thursday April 26, 2018 8:35 AM CDT (13:35 UTC) Moonrise 4:21PMMoonset 4:21AM Illumination 85% Phase: Waxing Gibbous; Moon at 11 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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GMZ630 Northern Mobile Bay- 353 Am Cdt Thu Apr 26 2018
Today..Southwest winds 10 to 15 knots becoming west. Waves around 1 foot. Chance of showers in the morning.
Tonight..Northwest winds 8 to 13 knots. Waves around 1 foot.
Friday..North winds 5 to 10 knots becoming northwest. Waves around 1 foot. Slight chance of showers and Thunderstorms in the afternoon.
Friday night..Northwest winds 8 to 13 knots diminishing to 3 to 8 knots. Waves around 1 foot.
Saturday..Northwest winds 3 to 8 knots becoming west 5 to 10 knots. Waves less than 1 foot.
Saturday night..West winds 8 to 13 knots becoming north 3 to 8 knots. Waves less than 1 foot.
Sunday..Northeast winds 5 to 10 knots. Waves around 1 foot.
Sunday night..Northeast winds 8 to 13 knots. Waves around 1 foot.
Monday..East winds 8 to 13 knots. Waves less than 1 foot.
Monday night..Southeast winds 8 to 13 knots. Waves around 1 foot.
GMZ600 Synopsis For Pascagoula Ms To Okaloosa Walton County Line Fl Out 60 Nm Including Major Area Bays And Sounds- 353 Am Cdt Thu Apr 26 2018
Synopsis..Light to moderate southwesterly winds early this morning transition to a moderate to occasionally strong westerly flow as a cold front moves across the marine area. A moderate northwesterly flow follows for tonight then subsides on Friday. A light to moderate northeasterly flow develops on Sunday then becomes southeast on Monday.

7 Day Forecast for Marine Location Near Dauphin Island, AL
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location: 30.25, -88.08     debug


Area Discussion for - Mobile/Pensacola, FL
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Fxus64 kmob 261129 aab
afdmob
area forecast discussion... Updated
national weather service mobile al
629 am cdt Thu apr 26 2018

Discussion Updated for latest aviation discussion below.

Aviation
12z issuance... An area of showers with MVFR ceilings and a few
possible embedded storms will progress eastward across the area
this morning as a cold front moves through the area.VFR
conditions develop first over the western portion of the area
later this morning, then over the remainder of the area during the
afternoon, and continue through the remainder of the period. Light
southerly winds become westerly near 10 knots this morning then
diminish to near 5 knots by this evening. 29

Prev discussion issued 559 am cdt Thu apr 26 2018
discussion... See updated information for land areas below.

Update... Have updated the first period (today) due to a faster
movement of showers which have advanced into the western portion
of the area. Have also increased pops based on better coverage
seen with the convection. No other major changes. 29
prev discussion... Issued 404 am cdt Thu apr 26 2018
near term now through Thursday night ... A shortwave trof near the
lower mid mississippi river valley moves quickly across the forecast
area through the early afternoon hours followed by a longwave upper
trof developing over the eastern states tonight. A surface low
associated with the shortwave trof will be initially located near
central mississippi then moves across interior alabama through this
afternoon. This system will have brought a cold front into the far
western portion of the area by the beginning of the period which
then progresses quickly eastward through the forecast area this
morning. The quick movement of both the front and the associated
shortwave trof brings scattered to numerous occasional showers
moving across the area mainly during the morning hours, with the
higher pops over interior areas along with some embedded storms.

Some mainly isolated showers will linger over the eastern portion
early this afternoon before dry conditions follow for the
remainder of the period. Instability is rather limited and no
strong or severe storms are expected. 29
short term Friday through Saturday night ... Another fast moving
upper level positive tilt trof and associated increase in potential
vorticity advances quickly eastward over the central gulf coast
Friday. With the passage of this system and a weak surface
pressure trof, may be enough lift to squeeze out a small pop
Friday over the western zones. Slight chance of a passing storm in
the presence of weak daytime instability over portions of
interior southeast ms and coastal al Friday afternoon. As the
upper trof sweeps east Friday night, a deep layer dry airmass
overspreads the area, bringing the beginning to a nice spring
weekend.

Long term Sunday through Wednesday ... Surface high pressure from
the great lakes southward to the northern gulf Sunday is forecast
to drop southeast to off the southeast us coast by Monday. The
high moves a bit more east over the western atlantic into the
middle of next week. With the high to our east, a return flow sets
up off the gulf, bringing a modification in deeper layer moisture
and a return chance of showers and storms by Tuesday. Temperatures
also show a moderation trend going through the medium range. 10
marine... Light to moderate southwesterly winds early this morning
transition to a moderate to occasionally strong westerly flow as a
cold front moves across the marine area. Will have small craft
exercise caution for most of the area today. A moderate
northwesterly flow follows for tonight then subsides on Friday. A
light to moderate northeasterly flow develops on Sunday then becomes
southeast on Monday. 29

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
DPIA1 - Dauphin Island, AL 0 mi96 min WSW 8 G 11 70°F 1011.8 hPa (+0.7)65°F
FMOA1 - 8734673 - Fort Morgan, AL 3 mi48 min WSW 14 G 16 70°F
CRTA1 - Cedar Point, AL 5 mi66 min W 15 71°F
KATA1 - Katrina Cut, AL 7 mi66 min W 15 71°F 1012.2 hPa
MBLA1 - Middle Bay Light, AL 13 mi66 min SW 8.9 69°F 1011.5 hPa
BSCA1 - Bon Secour, AL 14 mi96 min SW 1
WKXA1 - Weeks Bay Reserve, AL 18 mi111 min 68°F 1011 hPa68°F
WBYA1 18 mi48 min 71°F
GDXM6 - Grand Bay Reserve, MS 20 mi111 min W 8 70°F 1012 hPa64°F
PTBM6 - 8741003 - Petit Bois Island, MS 23 mi48 min WSW 15 G 19 70°F 1012.7 hPa
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 27 mi54 min 68°F
PPTA1 28 mi66 min 70°F 1011.9 hPa
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 28 mi48 min W 5.1 G 8 68°F 70°F1011.6 hPa
PTOA1 29 mi48 min 68°F 63°F
MHPA1 - Meaher Park, AL 30 mi66 min SSW 4.1 68°F 1011.9 hPa
42012 - Orange Beach AL Buoy 31 mi36 min WSW 12 G 16 71°F 1012.8 hPa (+0.7)67°F
OBLA1 - 8737048 - Mobile State Docks, AL 32 mi54 min 69°F 66°F1011.6 hPa
PCLF1 - 8729840 - Pensacola, FL 47 mi54 min S 4.1 G 8.9 70°F 71°F1012.1 hPa

Wind History for Dauphin Island, AL
(wind in knots)    EDIT      (on/off)   Help
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N8
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W7
G11
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G8
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G8
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G12
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1 day
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NW10
G14
NW7
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G13
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G16
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G17
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G21
W7
G16
W7
N16
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N11
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NW6
G9
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NW14
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NW11
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NW9
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G15
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G12
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G18
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G20
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SW15
G19
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G20
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G17
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W7
G11
NW19
G24
NW17
G22
NW14
G17
NW11
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NW10
NW11
NW13
NW5
NW8
W5
G10
W10
G15

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sonny Callahan Airport, AL18 mi41 minN 010.00 miOvercast68°F68°F100%1011.8 hPa
Jack Edwards Airport, AL22 mi61 minWSW 510.00 miFair68°F65°F92%1012.2 hPa

Wind History from CQF (wind in knots)
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Last 24hrN6N5N7N6N6NW6W5SW6SW5SW4CalmSW3CalmCalmCalmCalmCalmCalmCalmS3CalmSW3SW3SW3
1 day agoNW3W6SW5SW7SW5SW7
G14
SW9
G14
W7NW8
G14
NW8N7CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW3N6
2 days agoNW3NW4CalmSW5SW9
G15
SW10
G18
W11
G17
SW12
G17
SW11
G15
W8W5W4NW4NW6NW4NW3CalmNW3CalmCalmCalmCalmCalmNW4

Tide / Current Tables for Dauphin Island, Mobile Bay, Alabama
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Dauphin Island
Click for Map
Thu -- 04:21 AM CDT     Moonset
Thu -- 05:28 AM CDT     0.36 feet Low Tide
Thu -- 06:13 AM CDT     Sunrise
Thu -- 04:21 PM CDT     Moonrise
Thu -- 07:26 PM CDT     Sunset
Thu -- 09:25 PM CDT     0.74 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.60.50.40.40.40.40.40.40.40.50.50.50.50.50.50.60.60.60.70.70.70.70.7

Tide / Current Tables for Mobile Bay Entrance, Alabama Current
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Mobile Bay Entrance
Click for Map
Thu -- 01:38 AM CDT     -0.95 knots Max Ebb
Thu -- 04:21 AM CDT     Moonset
Thu -- 06:13 AM CDT     Sunrise
Thu -- 07:46 AM CDT     0.00 knots Slack
Thu -- 03:42 PM CDT     0.46 knots Max Flood
Thu -- 04:21 PM CDT     Moonrise
Thu -- 07:26 PM CDT     Sunset
Thu -- 09:39 PM CDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.8-0.9-0.9-0.9-0.7-0.6-0.3-0.100.20.30.40.40.40.40.50.50.40.40.30.20.1-0.1-0.2

Weather Map and Satellite Images
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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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Mobile/Pensacola, FL (9,2,3,4)
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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.