Thursday, April22, 2021
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Marine Weather and Tides
Dauphin Island, AL

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:14AMSunset 7:25PM Thursday April 22, 2021 8:21 AM CDT (13:21 UTC) Moonrise 2:43PMMoonset 3:36AM Illumination 80% Phase: Waxing Gibbous; Moon at 10 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 Expires:202104222100;;936156 Fzus54 Kmob 220848 Cwfmob Coastal Waters Forecast National Weather Service Mobile Al 348 Am Cdt Thu Apr 22 2021 Gulf Coastal Waters Okaloosa Walton County Line To Pascagoula Out 60 Nm Seas Are Given As Significant Wave Height...which Is The Average Height Of The Highest 1/3 Of The Waves. Individual Waves May Be More Than Twice The Significant Wave Height. Winds And Seas Will Be Higher In And Around Thunderstorms. Gmz630-631-222100- Northern Mobile Bay-southern Mobile Bay- 348 Am Cdt Thu Apr 22 2021
.small craft advisory in effect until 10 am cdt this morning...
Today..Northeast winds 18 to 23 knots with gusts to around 25 knots becoming southeast 8 to 13 knots. Waves around 2 feet.
Tonight..Southeast winds 8 to 13 knots becoming east. Waves around 1 foot.
Friday..East winds 10 to 15 knots becoming southeast. Waves around 1 foot. Slight chance of showers in the afternoon.
Friday night..Southeast winds 13 to 18 knots becoming south 18 to 23 knots. Gusts up to 25 knots. Waves 1 to 2 feet. Showers likely and slight chance of Thunderstorms.
Saturday..Southwest winds 15 to 20 knots diminishing to 13 to 18 knots. Gusts up to 25 knots. Waves 1 to 2 feet. Showers in the morning. Chance of Thunderstorms. Chance of showers in the afternoon.
Saturday night..Southwest winds 13 to 18 knots with gusts to around 25 knots becoming north. Waves 1 to 2 feet. Slight chance of showers in the evening.
Sunday..North winds 13 to 18 knots. Waves around 2 feet.
Sunday night..Northeast winds 8 to 13 knots. Waves around 1 foot.
Monday..Southeast winds 8 to 13 knots. Waves around 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- 348 Am Cdt Thu Apr 22 2021
Synopsis..Moderate to strong offshore winds are expected to continue tonight into the morning, then decrease slightly and transition to be easterly by this afternoon. Moderate southeasterly flow expected on Friday, before shifting southerly and increasing to moderate to strong overnight ahead of another cold front. Moderate northerly flow is then anticipated in the wake of the second cold front early Sunday.


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 221231 AFDMOB

Area Forecast Discussion National Weather Service Mobile AL 731 AM CDT Thu Apr 22 2021

AVIATION. 12Z issuance . VFR conditions prevail through the TAF cycle. Winds will generally be northeasterly today between 5-10kts, becoming more easterly and light going into Friday. JEH/88

PREV DISCUSSION. /issued 458 AM CDT Thu Apr 22 2021/

NEAR TERM UPDATE /Now Through Friday/ . Dry, clear, and cool weather continues through the most of the near term. Flow aloft begins to transition to northwesterly on through the morning as ridging moves east into the area by late this afternoon. Through Friday flow aloft gradually becomes southwest as a neutrally tilted shortwave trough aloft tracks east and parks itself over central TX by the end of the period. At the surface, high pressure moves east across the southeast through tonight and into early Friday, eventually making its way out over the Atlantic just off the east coast by the end of the period. Northeasterly surface flow through today transitions to more easterly tonight as the high continues tracking east. By Friday, as the high drifts further east, moisture slowly increases over the region as southeasterly surface develops on the back side of the high pressure. Additionally, a low pressure over TX panhandle associated with the shortwave system aloft gradually shifts southeast. A warm frontal boundary extending from this low from the TX panhandle southeast into the Gulf will begin slowly lifting off to the northeast towards the region going into the short term. As a result, clouds begin increasing over the region from the west with a slight chance of some isolated rain showers over the far southwestern portion of the forecast area going by the end of the day on Friday. Otherwise, dry conditions continue through tonight and into early Friday.

As far as temps, highs on Thursday are expected to be in the upper 60s to low 70s across the region. Temps along the coast will feel a bit cooler given winds remain somewhat elevated by the coastal regions. Lows on Thursday night will be a bit warmer with temperatures in the mid to upper 40s across most of the area, but low to mid 50s near and along the coast. With return flow developing on Friday, high temps increase slightly with mid 70s over most of the region except for the far northwestern region of the forecast area and areas right along the immediate coast where low 70s is expected due to increasing cloud cover from the west, and onshore flow keeping temps along the immediate coast slightly modified. JEH/88

SHORT TERM /Friday night Through Saturday night/ . A potent mid/upper level trough moves east out of the southern Plains and into the Lower MS Valley Friday night, and then over our region on Saturday. An associated surface low pressure area over the southern Plains will lift northeastward in the Tennessee/Kentucky region. The best available thermodynamic instability and vertical wind shear supportive of strong mesocyclones would approximately be from about midnight through mid-morning Saturday. Some of the mesoscylones that form overnight Friday could be quite intense and will be capable of all THREE modes of severe weather impacts [i.e., large diameter hail, damaging straight line wind gusts and even tornadoes. A strong [EF2+ tornado (especially inland)]. I also do not want to exclude the coast, as the models may shift further south. The bulk of the severe deep convection moves off to the east during the remainder of the day as a dry slot moves over the region from the west, resulting in a capping inversion that 'should' suppress subsequent second generation severe deep convection. Any flash flooding that occurs will mainly be Friday night through noon Saturday, especially across the northern half of the forecast area where 1 to 3 inches of rainfall is expected. There will clearly be some lingering thermodynamic instability Saturday afternoon region-wide, however, we feel any additional showers and thunderstorms should be weaker, and relegated to the strongest of boundaries where differential heating occurs (more likely west than east where some clearing occurs, despite drying). Highs Saturday will be in the upper 70s to lower 80s. Isolated to scattered showers and few lingering thunderstorms east of the Alabama River Saturday evening will move quickly off to the east by midnight as a cold front advances southeast through the area, followed by overnight lows in the 50s as winds turn northerly. /22

EXTENDED TERM /Sunday Through Wednesday/ . Ridging aloft builds into the eastern half of the CONUS through early next week. The ridge amplifies as a shortwave pivots into the Pacific Northwest on Sunday. The deepening trough aloft quickly encompasses much of the western half of the CONUS by Tuesday and central portion of the CONUS by Wednesday. Ensemble guidance supports the general timing previously mentioned, although there remain some timing/placement differences in the deterministic guidance (especially by Wednesday).

Down in the lower levels, a surface high builds into the eastern half of the CONUS from the Midwest late in the weekend through early next week. As the high slides east on Monday, surface winds swing from northerly to southeasterly through the day. As the ridge aloft and surface high dominate the pattern during much of the extended, the chances for rain stay zero and temperatures soar into the mid and upper 80s through Tuesday. Meanwhile, a surface low develops near the OK/TX panhandles on Tuesday and lifts northeast through Wednesday as the trough slides into the central portion of the CONUS. This surface low and the associated cold front will bring our next chance for rain by late Wednesday. Showers begin streaming into the area by Wednesday morning and afternoon with the bulk of the showers and storms moving in late Wednesday into Thursday. Some of the guidance is hinting that we will have yet another chance for strong storms with this mid-week system, but it's too early to dive into the specifics at this time given the uncertainty. 07/mb

MARINE . A Small Craft Advisory remains in effect for the Gulf waters, MS Sound, and Northern/Southern Mobile Bay until 10AM this morning. Exercise caution condition exist over remaining area bays. Winds begin to decrease through today with only the far offshore waters likely remaining under Exercise Caution conditions. Northeasterly flow through today becomes light to moderate easterly by tonight. Moderate southeasterly flow is expected on Friday, before shifting southerly and increasing to moderate to strong overnight ahead of another cold front. This said, Small Craft Exercise Caution conditions will likely be needed on Friday into Friday night, with the potential of needing another Small Craft Advisory by late Friday night going into Saturday. Moderate northerly flow is then expected in the wake of the FROPA by early Sunday. JEH/88

MOB WATCHES/WARNINGS/ADVISORIES. AL . None. FL . None. MS . None. GM . Small Craft Advisory until 10 AM CDT this morning for GMZ630>632- 650-655-670-675.



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 mi82 min NE 19 G 22 53°F 1022.5 hPa (+1.5)
FMOA1 - 8734673 - Fort Morgan, AL 3 mi52 min ENE 17 G 22 52°F 1022.6 hPa
MBLA1 - Middle Bay Light, AL 13 mi112 min N 19 51°F 1021.7 hPa
WBYA1 18 mi52 min 64°F
WKXA1 - Weeks Bay Reserve, AL 18 mi97 min 47°F 1023 hPa36°F
MBPA1 19 mi52 min 53°F 38°F
PTBM6 - 8741003 - Petit Bois Island, MS 23 mi52 min NE 21 G 25 55°F 1022.8 hPa
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 27 mi52 min 64°F
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 28 mi52 min NE 12 G 16 50°F 66°F1022.6 hPa
PTOA1 29 mi52 min 50°F 34°F
42012 - Orange Beach AL Buoy 31 mi32 min NE 19 G 23 56°F 68°F4 ft1023.8 hPa42°F
OBLA1 - 8737048 - Mobile State Docks, AL 32 mi52 min 52°F 67°F1023.5 hPa
PCLF1 - 8729840 - Pensacola, FL 47 mi52 min N 5.1 G 8.9 51°F 69°F1023 hPa

Wind History for Dauphin Island, AL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sonny Callahan Airport, AL18 mi47 minENE 810.00 mi46°F32°F57%1023 hPa
Jack Edwards Airport, AL22 mi27 minNE 710.00 miFair50°F34°F55%1023.4 hPa

Link to 5 minute data for KCQF

Wind History from CQF (wind in knots)
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1 day agoNE6NE4CalmNE5CalmW4W4NW5S6S3S3SW4CalmW4W3W3CalmCalmW3W3CalmCalmN6NW8
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Tide / Current Tables for Dauphin Island, Alabama
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Dauphin Island
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Thu -- 03:35 AM CDT     Moonset
Thu -- 05:21 AM CDT     -0.05 feet Low Tide
Thu -- 06:17 AM CDT     Sunrise
Thu -- 02:43 PM CDT     Moonrise
Thu -- 07:05 PM CDT     1.12 feet High Tide
Thu -- 07:24 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.40.20.1-0-0-000.10.20.30.40.60.70.80.9111.11.11.11.110.8

Tide / Current Tables for Mobile Bay Entrance, Alabama Current
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Mobile Bay Entrance
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Thu -- 01:17 AM CDT     -1.71 knots Max Ebb
Thu -- 03:35 AM CDT     Moonset
Thu -- 06:17 AM CDT     Sunrise
Thu -- 07:13 AM CDT     0.00 knots Slack
Thu -- 01:17 PM CDT     1.38 knots Max Flood
Thu -- 02:43 PM CDT     Moonrise
Thu -- 07:24 PM CDT     Sunset
Thu -- 08:17 PM CDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.6-1.7-1.7-1.5-1.3-0.9-0.5-0.10.30.711.21.31.41.41.31.110.70.40.1-0.2-0.6-0.9

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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