Sunday, January21, 2018 L-36.com


Marine Weather and Tides
Gulf Shores, 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 6:46AMSunset 5:20PM Sunday January 21, 2018 6:57 AM CST (12:57 UTC) Moonrise 10:38AMMoonset 10:35PM Illumination 23% Phase: Waxing Crescent; Moon at 5 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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GMZ650 Coastal Waters From Pensacola Fl To Pascagoula Ms Out 20 Nm- Coastal Waters From Okaloosa Walton County Line Fl To Pensacola Fl Out 20 Nm- 341 Am Cst Sun Jan 21 2018
Today..East winds 8 to 13 knots becoming southeast 10 to 15 knots. Seas around 2 feet. Dominant wave period 4 seconds.
Tonight..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Dominant wave period 6 seconds.
Monday..Southeast winds 10 to 15 knots becoming south 13 to 18 knots. Seas 3 to 4 feet. Dominant wave period 7 seconds. Chance of showers in the morning, then showers likely and chance of Thunderstorms in the afternoon.
Monday night..Southwest winds 10 to 15 knots becoming northwest 13 to 18 knots. Seas 4 to 5 feet. Dominant wave period 7 seconds. Chance of showers and slight chance of Thunderstorms in the evening.
Tuesday..North winds 13 to 18 knots diminishing to 10 to 15 knots. Seas 3 to 4 feet. Dominant wave period 6 seconds.
Tuesday night..North winds 13 to 18 knots. Seas around 2 feet. Dominant wave period 6 seconds.
Wednesday..North winds 13 to 18 knots. Seas around 2 feet. Dominant wave period 4 seconds.
Wednesday night..Northeast winds 13 to 18 knots. Seas around 2 feet. Dominant wave period 4 seconds.
Thursday..Northeast winds 13 to 18 knots. Seas 3 to 4 feet.
Thursday night..East winds 15 to 20 knots. Seas 3 to 4 feet.
GMZ600 Synopsis For Pascagoula Ms To Okaloosa Walton County Line Fl Out 60 Nm Including Major Area Bays And Sounds- 341 Am Cst Sun Jan 21 2018
Synopsis..Southeast winds will gradually increase through tonight as a cold front approaches the marine area from the west. Winds will become south to southwest on Monday in response to the cold fronts approach, with showers and a few Thunderstorms developing as well. The front is expected to move east across the marine area late Monday night. Showers and storms ending and a moderate to strong offshore flow is expected in the wake of the front Tuesday through late week.

7 Day Forecast for Marine Location Near Gulf Shores, AL
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location: 30.24, -87.69     debug


Area Discussion for - Mobile/Pensacola, FL
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Fxus64 kmob 211147
afdmob
area forecast discussion
national weather service mobile al
547 am cst Sun jan 21 2018

Discussion Updated for latest aviation discussion below.

Aviation
21 12z issuance... GeneralVFR conditions through this evening (around
22 03z), when ifr to lifr CIGS (low status) and visibilities (fog)
develop. Surface winds becoming southeast around 10 knots today
and continuing through tonight. 12 ds

Prev discussion issued 426 am cst Sun jan 21 2018
near term now through Sunday night ... The upper shortwave noted
yesterday has now moved east of the forecast area, now over northern
florida, and will move off the atlantic coast today. As the upper
low moves off to the east, upper ridging will drift east across the
forecast area today. Tonight, the upper ridging is expected to move
quickly off to the east of the forecast area as deep low pressure
and troughing develops over the plains states. Surface high pressure
located along the southeast atlantic coast early this morning will
move out over the atlantic through tonight, while a cold front
associated with the developing plains system approaches from the
west. This cold front will be approaching the mississippi river by
daybreak Monday, with perhaps a few showers moving into our far
western counties very late tonight as the front approaches and upper
ridging weakens. Persistent low level southeasterly flow today and
tonight will bring increasing moisture into the region, and this
onshore flow combined with the cool near shore marine waters will
likely result in some fog across the area tonight, especially over
the southern locations near the coast. High temperatures today
finally return to the lower 70s for most locations, except along the
immediate coastal areas where the onshore flow will keep highs in
the mid to upper 60s. Warmer tonight too, with lows ranging from the
upper 40s over northeastern counties to the low to mid 50s
elsewhere. A few upper 50s possible along the immediate coast.

12 ds
short term Monday through Tuesday night ... Monday through Monday
night, a closed upper system moves from over the central plains
east-northeast over the mid upper mississippi river valley before
getting a more northeast push due to a building upper ridge over
the western atlantic. This system pushes a surface front across
southeast mississippi late Monday afternoon, then east of central
alabama and the western florida panhandle shortly after midnight
Monday night. Shra tsra pretty much a given ahead of the front
Monday afternoon into the evening hours. Biggest question is the
chance of any severe. Guidance remains on the marginal side for
any strong to severe (topping out around 500 j kg). 0-3km shear is
enough (200-300 m^2 s^2 in the afternoon) for some rotators.

Mid upper level support has shifted north a bit, north of the
forecast area in our case. SPC continues to advertise a marginal
risk of severe weather with damaging winds the primary threat and
see no reason to alter this at this point, with less overlap of
surface and upper ingredients than yesterday. Temps above seasonal
expected Monday. With cooler air moving over the area behind the
front, Monday night's lows will see a gradient of around seasonal
lows west to above east.

Tuesday through Tuesday night will see a return of near seasonal
temps as cooler drier air overspreads the entire forecast area.

16
long term Wednesday through Saturday ... Shortwave energy moves
over the plains mid week into the weekend, pushing surface high
pressure from the plains to off the mid atlantic coast. This
prings back southerly flow off the gulf by Friday. Moisture levels
increase into the weekend until another front moves across the
area Saturday night. Rain returns Friday night, with a better
chance of rain Saturday. Temps moderate slowly upwards from around
seasonal mid week to above seasonal with the return of southerly
flow end of the week.

16
marine... For the most part, no hazards in the near term except for
winds nearing exercise caution levels for the offshore gulf zones
this afternoon. A cold front approaches the marine area from the
west tonight and early Monday bringing an increased chance of
showers and embedded storms, as well as an continued increase in
seas associated with the increased onshore flow. The front is
expected to move east across the marine area Monday night. Showers
and storms ending with the frontal passage and a moderate to strong
offshore flow is expected in the wake of the front Tuesday through
late week. Winds and seas primarily in the exercise caution category
( 15 to 20 knots and up to 6 feet)through most of the week for the
offshore gulf waters, but possibly reaching small craft advisory
levels (20 knots plus) by weeks end as a reinforcing surge of
offshore flow develops. 12 ds

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
PPTA1 8 mi57 min 49°F 1022.4 hPa (-0.3)
WKXA1 - Weeks Bay Reserve, AL 14 mi72 min 42°F 1022 hPa42°F
WBYA1 14 mi39 min 51°F
FMOA1 - 8734673 - Fort Morgan, AL 18 mi39 min ESE 9.9 G 11 55°F
DPIA1 - Dauphin Island, AL 20 mi57 min N 1.9 G 1.9 48°F 1022.1 hPa (-0.0)
MBLA1 - Middle Bay Light, AL 22 mi57 min ENE 4.1 48°F 1022 hPa (+0.0)
CRTA1 - Cedar Point, AL 24 mi57 min NE 6 49°F 1022 hPa (-0.0)
PCLF1 - 8729840 - Pensacola, FL 28 mi45 min NE 2.9 G 4.1 48°F 49°F1022.8 hPa
KATA1 - Katrina Cut, AL 28 mi57 min ENE 11 47°F 1022.4 hPa (-0.3)
MHPA1 - Meaher Park, AL 32 mi57 min E 5.1 51°F 1023 hPa (+0.7)
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 34 mi39 min NW 1.9 G 1.9 44°F 49°F1022.8 hPa
PTOA1 35 mi39 min 45°F 44°F
OBLA1 - 8737048 - Mobile State Docks, AL 37 mi45 min 43°F 49°F1022.7 hPa
GDXM6 - Grand Bay Reserve, MS 40 mi72 min NE 4.1 48°F 1023 hPa47°F
PTBM6 - 8741003 - Petit Bois Island, MS 43 mi39 min ENE 7 G 8 50°F 1022.8 hPa
ULAM6 - 8741041 - Dock E. Port of Pascagoula, MS 44 mi39 min 51°F
RARM6 - 8741094 - Range A rear, Pascagoula, MS 44 mi39 min ENE 6 G 7 53°F 1021.7 hPa
DKCM6 - 8741501 - Dock C, Pascagoula, MS 47 mi39 min NNW 1 G 1.9 47°F 1021.9 hPa
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 47 mi39 min 47°F

Wind History for Fort Morgan, AL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jack Edwards Airport, AL4 mi62 minE 410.00 miFair42°F41°F100%1022.3 hPa
Sonny Callahan Airport, AL18 mi62 minN 010.00 miFair43°F42°F100%1022.3 hPa
Pensacola Naval Air Station, FL21 mi61 minENE 4 miFair48°F45°F89%1022.5 hPa

Wind History from JKA (wind in knots)
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Last 24hrCalmNE3E6E5E5E11
G17
SE10
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G17
SE11
G15
E8SE6E3E4E9E6NE3E9SE4E10CalmNE8CalmCalmE4
1 day agoCalmNE4NE3NW4NW4S6SE7SE7SW4CalmW6CalmCalmCalmCalmCalmCalmE5CalmCalmCalmCalmCalmCalm
2 days agoN5N9N8N7N6
G14
N8N6N5
G14
N8N6CalmCalmNW4CalmCalmCalmN4CalmCalmCalmN6N5CalmCalm

Tide / Current Tables for Bon Secour, Bon Secour River, Alabama
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Bon Secour
Click for Map
Sun -- 12:41 AM CST     1.01 feet High Tide
Sun -- 06:46 AM CST     Sunrise
Sun -- 09:38 AM CST     Moonrise
Sun -- 10:03 AM CST     -0.20 feet Low Tide
Sun -- 05:18 PM CST     Sunset
Sun -- 09:35 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1110.90.70.50.30.1-0-0.2-0.2-0.2-0.100.10.30.40.50.60.70.70.70.70.8

Tide / Current Tables for Mobile Bay Entrance, Alabama Current
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Mobile Bay Entrance
Click for Map
Sun -- 01:34 AM CST     -0.00 knots Slack
Sun -- 06:47 AM CST     Sunrise
Sun -- 07:22 AM CST     -1.37 knots Max Ebb
Sun -- 09:39 AM CST     Moonrise
Sun -- 01:35 PM CST     0.00 knots Slack
Sun -- 05:19 PM CST     Sunset
Sun -- 07:36 PM CST     1.12 knots Max Flood
Sun -- 09:37 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.2-0.2-0.5-0.8-1.1-1.3-1.4-1.3-1.2-1.1-0.8-0.5-0.20.10.40.70.911.11.11.10.90.7

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 (7,2,3,4)
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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.