Wednesday, June20, 2018 L-36.com


Marine Weather and Tides
Dauphin Island, AL

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 5:48AMSunset 7:58PM Wednesday June 20, 2018 2:10 PM CDT (19:10 UTC) Moonrise 1:10PMMoonset 1:03AM Illumination 49% Phase: First Quarter Moon; Moon at 7 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- 1022 Am Cdt Wed Jun 20 2018
Rest of today..Light and variable winds becoming south 8 to 13 knots. Waves less than 1 foot. Isolated showers and Thunderstorms.
Tonight..Southwest winds 8 to 13 knots diminishing to 3 to 8 knots. Waves around 1 foot. Isolated showers and Thunderstorms in the evening.
Thursday..West winds 3 to 8 knots becoming southwest. Waves around 1 foot. Chance of showers and Thunderstorms in the afternoon.
Thursday night..Southwest winds 8 to 13 knots. Waves around 1 foot. Chance of showers and Thunderstorms in the evening.
Friday..Southwest winds 8 to 13 knots. Waves around 1 foot. Slight chance of showers and Thunderstorms.
Friday night..Southwest winds 8 to 13 knots. Waves around 1 foot.
Saturday..Southwest winds 8 to 13 knots. Waves around 1 foot.
Saturday night..Southwest winds 8 to 13 knots. Waves around 1 foot.
Sunday..Southwest winds 8 to 13 knots. Waves around 1 foot. Slight chance of showers and Thunderstorms.
Sunday night..Southwest 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- 1022 Am Cdt Wed Jun 20 2018
Synopsis..A light to occasionally moderate southwest flow will generally prevail over the marine area through early next week as high pressure ridges westward across the northern gulf. Southwesterly flow will increase Thursday night into early Saturday with a slight build in seas.

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 201723 aac
afdmob
area forecast discussion... Updated
national weather service mobile al
1223 pm cdt Wed jun 20 2018

Discussion Updated for latest aviation discussion below.

Aviation
18z issuance... GeneralVFR CIGS visbys expected through the
forecast, with the exception of a few hours of MVFR level cigs
centered around 12z Thursday. More shra tsra are expected
Thursday, mainly north of area TAF sites and after the current
forecast ends.

16

Prev discussion issued 1150 am cdt Wed jun 20 2018
discussion... See updated information for land areas below.

Update... Have updated the current package to reflect current
observations. Overall, bumped some temps down a bit and some
up(east-central portions of the forecast area) a bit. Also, have
updated the TD forecast to better reflect current obs. Am still
expecting afternoon heat indices to top out in the 100 to 105f
range.

Shra tsra slow to fire this late this morning, with the only
activity over the forecast area over the far offshore waters and
near gulf shores. Am seeing a few returns just west of the
forecast area on radar, also, so am expecting activity to be on
the increase through the afternoon. Package out shortly.

16
prev discussion... Issued 640 am cdt Wed jun 20 2018
discussion... Updated for latest aviation discussion below.

Aviation...

12z issuance... Brief MVFR visibility reductions will impact
locations near the coast through around 12-13z.VFR is otherwise
expected to prevail across the region through this afternoon with
a few developing cumulus and scattered to broken mid to high level
cloud decks. Expect isolated to scattered shra tsra to develop
again today. Localized MVFR or lower conditions and gusty winds
can be expected near convection. Confidence of impact remained
too low to included TS mention at kmob kbfm kpns today, but will
monitor trends through the day. Light winds early this morning
generally become south to southwest 5-10 knots this afternoon. 21
prev discussion... Issued 445 am cdt Wed jun 20 2018
near term now through Wednesday night ... A mid level ridge of
high pressure will remain in place across our forecast area through
this afternoon. Hot and humid conditions will persist over the
region today, and we have once again trended high temperatures
toward the warmest guidance numbers. Afternoon highs are forecast to
range in the lower to mid 90s over the area, but humidity levels
will support maximum heat index readings in the 100-105 degree range
over most locations, and isolated places may experience heat indices
over 105. Caution should be exercised if spending periods of time
outdoors this afternoon.

Moisture convergence along the seabreeze will support the
development of isolated showers and thunderstorms across portions of
southwest south central al and the western fl panhandle today. Cam
guidance is also hinting at a little better convective coverage
across southeast ms and adjacent portions of southwest al on the
western periphery of the ridge axis this afternoon. We have
scattered (around 30%) coverage of showers and storms drawn
generally west of a lucedale, ms to butler, al line this afternoon,
with lower pops in the 15-20% range indicated across the remainder
of the region. The mid level ridge should flatten a bit tonight but
still remain oriented across the northern gulf of mexico, as a mid
level trough progresses across the mississippi and tennessee valley
region. Moisture and ascent ahead of this approaching feature will
support leaving isolated to scattered showers and storms in the
forecast across interior southeast ms and southwest al tonight. 21
short term Thursday through Friday night ... An upper ridge
over the area gradually weakens and shifts southward as an upper
trough develops across the plains. Shortwaves ejecting out of the
upper trough and moving eastward around the northern edge of the
upper ridge will bring increasing chances for rain by Thursday and
Friday. The passing upper waves will combine with plenty of deep
layer moisture and daytime heating to bring scattered showers and
thunderstorms back into the forecast by Thursday afternoon. Heat
index values will top out in the 100-104 range in most areas each
afternoon. 13
long term Saturday through Tuesday ... The trough lifts out on
Saturday with upper ridging building back over the area through
Tuesday. This will return the area to a more typical isolated to
low-end scattered diurnal pop pattern. Highs will remain in the
low 90s with heat index values in the 100-105 range each day. 13
marine... Weak surface ridging will remain in place across the
eastern gulf of mexico through tonight. Light offshore flow over the
nearshore waters should transition to a light to moderate onshore
flow this afternoon. A light to moderate southwest flow prevails
tonight into Thursday. An increasing pressure gradient between a
ridge of high pressure over the eastern gulf and low pressure over
the upper midwestern u.S. Should result in increased southwesterly
flow over the marine area and a slight build in seas Thursday night
into Saturday morning. Light to occasionally moderate southwest to
west flow otherwise continues late this weekend into early next
week. 21

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 mi71 min S 6 G 6 85°F 1015.1 hPa (-0.4)73°F
FMOA1 - 8734673 - Fort Morgan, AL 3 mi41 min SW 5.1 G 7 86°F
CRTA1 - Cedar Point, AL 5 mi41 min S 7 85°F 1014.6 hPa
KATA1 - Katrina Cut, AL 7 mi71 min SSW 2.9 85°F 1015.2 hPa (-0.3)
MBLA1 - Middle Bay Light, AL 13 mi71 min S 4.1 85°F 1015.2 hPa (-0.7)
WBYA1 18 mi41 min 85°F
WKXA1 - Weeks Bay Reserve, AL 18 mi86 min 90°F 1015 hPa76°F
GDXM6 - Grand Bay Reserve, MS 20 mi86 min S 4.1 84°F 1016 hPa74°F
PTBM6 - 8741003 - Petit Bois Island, MS 23 mi41 min SSE 5.1 G 6 86°F 1015.8 hPa
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 27 mi41 min 85°F
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 28 mi41 min S 5.1 G 8 87°F 85°F1014.8 hPa
PPTA1 28 mi41 min 88°F 1014.6 hPa
PTOA1 29 mi41 min 88°F 71°F
MHPA1 - Meaher Park, AL 30 mi41 min SSW 5.1 86°F 1014.9 hPa
42012 - Orange Beach AL Buoy 31 mi31 min SW 3.9 G 5.8 85°F 1014.7 hPa76°F
OBLA1 - 8737048 - Mobile State Docks, AL 32 mi47 min 88°F 84°F1014.7 hPa
PCLF1 - 8729840 - Pensacola, FL 47 mi41 min SSW 8 G 9.9 90°F 86°F1014.7 hPa

Wind History for Dauphin Island, AL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sonny Callahan Airport, AL18 mi16 minWSW 310.00 miFair86°F77°F75%1014.6 hPa
Jack Edwards Airport, AL22 mi16 minS 410.00 miFair89°F75°F63%1014.6 hPa

Wind History from CQF (wind in knots)
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Last 24hrCalmS4S7SW3SW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW4
1 day agoNE3SE5S3S5S5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE4NE4E5NE7E3SW4
2 days agoS5SE10SE7E6SE5E4CalmCalmNE3NE3CalmE3CalmCalmCalmE3CalmCalmE4E4E4E8SE7SE10

Tide / Current Tables for Dauphin Island, Mobile Bay, Alabama
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Dauphin Island
Click for Map
Wed -- 01:02 AM CDT     Moonset
Wed -- 01:44 AM CDT     0.21 feet Low Tide
Wed -- 05:50 AM CDT     Sunrise
Wed -- 05:52 AM CDT     First Quarter
Wed -- 01:09 PM CDT     Moonrise
Wed -- 02:03 PM CDT     0.78 feet High Tide
Wed -- 07:56 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.20.20.20.30.30.40.50.60.60.70.70.80.80.80.80.80.70.70.60.60.50.40.4

Tide / Current Tables for Mobile Bay Entrance, Alabama Current
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Mobile Bay Entrance
Click for Map
Wed -- 01:02 AM CDT     Moonset
Wed -- 03:47 AM CDT     0.00 knots Slack
Wed -- 05:50 AM CDT     Sunrise
Wed -- 05:52 AM CDT     First Quarter
Wed -- 09:35 AM CDT     0.92 knots Max Flood
Wed -- 01:09 PM CDT     Moonrise
Wed -- 04:04 PM CDT     -0.00 knots Slack
Wed -- 07:56 PM CDT     Sunset
Wed -- 09:24 PM CDT     -0.77 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1-0.8-0.5-0.20.10.30.60.70.90.90.90.90.80.60.40.20-0.2-0.4-0.6-0.7-0.8-0.8-0.7

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 (15,3,4,5)
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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.