Friday, July10, 2020
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Marine Weather and Tides
Dauphin Island, AL

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:56AMSunset 7:58PM Friday July 10, 2020 1:03 PM CDT (18:03 UTC) Moonrise 11:54PMMoonset 11:02AM Illumination 73% Phase: Waning Gibbous; Moon at 20 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- 1030 Am Cdt Fri Jul 10 2020
Today..West winds 8 to 13 knots. Waves less than 1 foot. Slight chance of showers and Thunderstorms in the morning, then chance of showers and Thunderstorms in the afternoon.
Tonight..West winds 5 to 10 knots becoming northwest 3 to 8 knots. Waves less than 1 foot. Slight chance of showers and Thunderstorms in the evening.
Saturday..Northwest winds 3 to 8 knots. Waves less than 1 foot. Slight chance of showers and Thunderstorms in the afternoon.
Saturday night..West winds 3 to 8 knots. Waves less than 1 foot.
Sunday..West winds 3 to 8 knots becoming southwest 8 to 13 knots. Waves less than 1 foot. Slight chance of showers and Thunderstorms.
Sunday night..Southwest winds 8 to 13 knots becoming west. Waves less than 1 foot. Slight chance of showers and Thunderstorms.
Monday..West winds 8 to 13 knots. Waves less than 1 foot. Chance of showers and Thunderstorms.
Monday night..Southwest winds 8 to 13 knots. Waves less than 1 foot.
Tuesday..Southwest winds 8 to 13 knots. Waves less than 1 foot. Slight chance of showers and Thunderstorms.
Tuesday night..Southwest winds 8 to 13 knots. Waves less than 1 foot.
GMZ600 Synopsis For Pascagoula Ms To Okaloosa Walton County Line Fl Out 60 Nm Including Major Area Bays And Sounds- 1030 Am Cdt Fri Jul 10 2020
Synopsis..A light to occasionally moderate westerly flow will prevail through Tuesday. Isolated to scattered showers and storms will be possible mainly near the coast through the period.


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 101121 AAA AFDMOB

Area Forecast Discussion . UPDATED National Weather Service Mobile AL 621 AM CDT Fri Jul 10 2020

AVIATION. 12Z issuance . Isolated to scattered showers and storms will affect much of the area today then end during the early evening hours. Westerly to northwesterly winds 5 to 10 knots today become light and variable tonight. VFR conditions prevail through the period except for MVFR conditions with the stronger storms and also possibly with patchy late night/early morning fog. /29

PREV DISCUSSION. /issued 423 AM CDT Fri Jul 10 2020/

..DANGEROUS HEAT INDICES EXPECTED FRIDAY THROUGH THE WEEKEND ACROSS MUCH OF THE AREA .

NEAR TERM UPDATE /Now Through Saturday/ . A deep layer northwesterly flow persists over the forecast area through the period between an eastern states upper trof and a large upper ridge which extends from the southwestern states into the Gulf. An unusual attribute for this pattern has been abundant deep layer moisture which has persisted over the area with precipitable water values near 2.0 inches. The mechanism for this is a southerly deep layer flow over the western Gulf which is drawing high moisture content air into the Southern/Central Plains which despite the subsidence from the upper ridge is then caught up in the northwesterly flow aloft and flows into the forecast area. The eastern states upper trof breaks this down at least temporarily with much drier air finally advected into the area overnight with precipitable water values dropping to 1.0 to 1.5 inches. The moisture transport mechanism starts to recover on Saturday and brings increasing deep layer moisture (precipitable water values 1.5-2.0 inches) into the western portion of the area late in the afternoon. As a series of shortwaves continue to move across the area within the northwesterly flow aloft along with daytime heating, expect scattered showers and storms today then coverage will be isolated at best for much of the area on Saturday except for potentially scattered coverage mainly over interior southeast Mississippi. Some strong storms are possible each day, and a severe storm or two cannot be ruled out. Highs today will be 90 to 95 with mid to upper 90s for Saturday. In coordination with area offices, have expanded the Heat Advisory to include the entire area today for heat index values of up to 108 to 112. For Saturday, similar heat index values are expected over the southern portion of the area but drier air mixing down will probably limit heat index values to below heat advisory criteria over interior areas. Lows tonight range from the mid 70s inland to the upper 70s at the coast. A low risk of rip currents continues through the period. /29

SHORT TERM /Saturday Night Through Sunday Night/ . This weekend will be HOT! The local area remains positioned between an upper level ridge building to the east out of the Desert Southwest and an upper level trough digging down the East Coast. This pattern places us firmly in northwest flow aloft with a few shortwaves sliding through the area in between the two aforementioned features. This will favor the development of an MCS (or potentially a remnant outflow) sliding into or near the area in the short term.

Showers and storms may linger across inland areas a little past sunset on Saturday evening, but otherwise expecting a dry evening. Scattered thunderstorm activity is expected again during the heat of the day on Sunday. Slightly drier mid-level air is noted in forecast soundings on Sunday afternoon, which may increase the threat for a few wet microbursts. Strong to potentially severe storms are possible Sunday afternoon as the dry, northwest flow aloft moves over the the moist airmass below with MLCAPE of 2000+ J/kg (and SBCAPE of 3-4000 J/kg), decent DCAPE, and steep low level lapse rates (especially across the northern portion of the area). Showers and storms will linger across inland areas through the overnight hours on Sunday into early Monday morning, especially across south central Alabama.

Sunday morning will be muggy, but heat stress will be the main issue as we head into the late morning through early evening hours. Afternoon temperatures will top out in the mid to upper 90s inland on Sunday with low 90s right at the beaches. These hot temperatures combined with afternoon dewpoints in the 70s and not a lot of cloud cover will lead to high wet bulb globe temperatures and heat stress concerns. The heat index will soar into the 106°-112° range on Sunday and has the potential to not only exceed Heat Advisory criteria across most of the area, but a few spots may get near the Excessive Heat Warning criteria. Advisories will be considered once we get closer in time and once we rule out a potential MCS rolling across the area during peak heating. The overnight lows will unfortunately not provide much relief from the heat as we only fall into the mid to low 70s inland with upper 70s to nearly 80° at the beaches on both Saturday night and Sunday night. 07/mb

EXTENDED TERM /Monday Through Thursday/ . The strong upper ridge over the Southern Plains late in the weekend will begin to shift east early next week as an upper trough moves east out over the western Atlantic. At the surface, a weak frontal boundary will drop south to near the coast where it becomes nearly stationary through the remainder of the extended term period. This feature, along with any residual thunderstorm outflow boundaries and afternoon sea breezes near the coast will all act as a low level focus for diurnal shower and thunderstorm activity. The Deep South will remain to the south of upper ridge axis with a somewhat easterly flow developing by mid week. Upper level disturbances in the easterlies will also help keep chances for showers and thunderstorms in the forecast through the extended period by providing some weak upper level support. The hot and humid weather should persist through the period with high temperatures remaining in the lower to middle 90s, and maybe even a few upper 90s in some locations at times. The Heat Advisories effective in the near and short term periods may have to be extended into the middle part of next week. Overnight lows stay muggy during the extended term as well, mainly in the mid and upper 70s for most locations. /12

MARINE . Moderate westerly winds will support Small Craft Exercise Caution wording over the open Gulf waters today and may also support this Sunday night into Monday morning. No other impacts are forecast except winds and waves higher near showers and storms. /29

MOB WATCHES/WARNINGS/ADVISORIES. AL . Heat Advisory from 11 AM this morning to 6 PM CDT this evening for ALZ051>060-261>266.

FL . Heat Advisory from 11 AM this morning to 6 PM CDT this evening for FLZ201>206.

MS . Heat Advisory from 11 AM this morning to 6 PM CDT this evening for MSZ067-075-076-078-079.

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 mi63 min NW 8.9 G 9.9 84°F 1016.9 hPa (+0.0)
FMOA1 - 8734673 - Fort Morgan, AL 3 mi51 min NW 9.9 G 12 85°F 1016.9 hPa
CRTA1 - Cedar Point, AL 5 mi63 min NW 9.9 84°F 1016.9 hPa (+0.0)
KATA1 - Katrina Cut, AL 7 mi63 min N 12 -40°F 1017.3 hPa (+0.3)
MBLA1 - Middle Bay Light, AL 13 mi123 min W 16 84°F 1016.6 hPa
BSCA1 - Bon Secour, AL 14 mi93 min NW 12 84°F 1016.9 hPa
WKXA1 - Weeks Bay Reserve, AL 18 mi78 min 87°F 1017 hPa73°F
WBYA1 18 mi45 min 86°F
MBPA1 19 mi45 min 86°F 71°F
GDXM6 - Grand Bay Reserve, MS 20 mi78 min N 8 83°F 1019 hPa74°F
PTBM6 - 8741003 - Petit Bois Island, MS 23 mi45 min NNW 8 G 8.9 86°F 1017.7 hPa
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 27 mi45 min 78°F
PPTA1 28 mi33 min 89°F 1016.6 hPa
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 28 mi45 min NW 9.9 G 13 84°F1017.2 hPa
PTOA1 29 mi45 min 83°F 71°F
MHPA1 - Meaher Park, AL 30 mi33 min NW 2.9 82°F 1016.9 hPa
42067 - USM3M02 30 mi63 min W 7.8 G 12 83°F 2 ft1016.6 hPa (+0.3)
42012 - Orange Beach AL Buoy 31 mi143 min 12 G 14 83°F1017 hPa
OBLA1 - 8737048 - Mobile State Docks, AL 32 mi45 min 87°F 85°F1017.1 hPa
PCLF1 - 8729840 - Pensacola, FL 47 mi45 min NW 4.1 G 8.9 91°F 86°F1015.7 hPa

Wind History for Dauphin Island, AL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sonny Callahan Airport, AL18 mi68 minW 410.00 miFair84°F71°F66%1016.6 hPa
Jack Edwards Airport, AL22 mi68 minW 6 G 1610.00 miFair89°F74°F61%1016.6 hPa

Link to 5 minute data for KCQF

Wind History from CQF (wind in knots)
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Last 24hrW4SW5SW4SW5SW6SW5SW6SW5SW5CalmSW3W4W5W6W5W5W3W4NW7W5NW9N7NW6NW5
1 day agoCalmSE3CalmCalmCalmN8
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CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW4W4W4W4W5NW4NW4W5
2 days agoW6W6SW5SW7NW7NW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW3CalmNW5CalmSW3

Tide / Current Tables for Dauphin Island, Mobile Bay, Alabama
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Mobile Bay Entrance, Alabama Current
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Mobile Bay Entrance
Click for Map
Fri -- 03:03 AM CDT     0.00 knots Slack
Fri -- 05:58 AM CDT     Sunrise
Fri -- 09:28 AM CDT     1.34 knots Max Flood
Fri -- 11:02 AM CDT     Moonset
Fri -- 03:40 PM CDT     -0.00 knots Slack
Fri -- 07:56 PM CDT     Sunset
Fri -- 09:13 PM CDT     -1.26 knots Max Ebb
Fri -- 11:53 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.1-0.8-0.4-00.30.60.91.11.31.31.31.31.10.90.60.2-0.1-0.5-0.8-1-1.2-1.3-1.2-1.1

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Mobile/Pensacola, FL (14,3,4,5)
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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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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 numerous 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.