Saturday, April21, 2018 L-36.com


Marine Weather and Tides
Mobile, 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 6:15AMSunset 7:25PM Saturday April 21, 2018 10:41 AM CDT (15:41 UTC) Moonrise 11:08AMMoonset 12:23AM Illumination 37% Phase: Waxing Crescent; Moon at 6 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- 1019 Am Cdt Sat Apr 21 2018
Rest of today..East winds 10 to 15 knots becoming southeast. Waves around 1 foot. Slight chance of showers.
Tonight..Southeast winds 10 to 15 knots becoming east. Waves around 1 foot. Slight chance of showers in the evening, then chance of showers after midnight.
Sunday..Southeast winds 10 to 15 knots becoming south 13 to 18 knots. Waves around 1 foot. Showers likely and slight chance of Thunderstorms in the morning, then showers and chance of Thunderstorms in the afternoon.
Sunday night..South winds 13 to 18 knots becoming west 5 to 10 knots. Waves around 1 foot. Chance of showers and Thunderstorms in the evening.
Monday..West winds 8 to 13 knots becoming southwest. Waves around 1 foot.
Monday night..West winds 8 to 13 knots becoming northwest 3 to 8 knots. Waves around 1 foot.
Tuesday..Northwest winds 8 to 13 knots. Waves around 1 foot. Slight chance of showers.
Tuesday night..Northwest winds 8 to 13 knots. Waves around 1 foot.
Wednesday..Northwest winds 8 to 13 knots. Waves around 1 foot.
Wednesday night..Northwest winds 8 to 13 knots. Waves less than 1 foot. Slight chance of showers.
GMZ600 Synopsis For Pascagoula Ms To Okaloosa Walton County Line Fl Out 60 Nm Including Major Area Bays And Sounds- 1019 Am Cdt Sat Apr 21 2018
Synopsis..A moderate to occasionally strong easterly flow today will become more southerly on Sunday as a cold front approaches the marine area from the west. Winds expected to become moderate westerly in the wake of the front late tonight into early Monday, with a light to moderate west to northwest flow then continuing into the middle part of mid next week.

7 Day Forecast for Marine Location Near Mobile, AL
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location: 30.71, -88.04     debug


Area Discussion for - Mobile/Pensacola, FL
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Fxus64 kmob 211225
afdmob
area forecast discussion
national weather service mobile al
725 am cdt Sat apr 21 2018

Discussion Updated for latest aviation discussion below.

Aviation
12z issuance... Mid and upper level clouds increasing this morning,
and expect this trend to continue today, with mid layer MVFR
ceilings possible by this afternoon and likely tonight. Will also
likely see MVFR to occasional ifr visibilities in fog late
tonight. Could see some very isolated showers near the gulf coast
today, and spreading into the region from the west late tonight,
but left out of tafs ATTM due to expected very isolated nature and
the fact that most of the latest mesoscale model data keeps best
rain chances delayed until after 12z Sunday. Light easterly surface
winds this morning, becoming primarily east to southeast at 10 to
15 knots late this afternoon and overnight. 12 ds

Prev discussion issued 507 am cdt Sat apr 21 2018
discussion... See updated information for land areas below.

Update... Rip current risk along the alabama and northwest florida
gulf beaches will be increasing over the next 24 hours. Wind flow
is expected to become onshore and increasingly strong beginning
late this afternoon and continuing through Sunday. While the rip
current risk is expected to be low today, by early this evening
the strengthening onshore flow will result in a moderate risk of
rip currents tonight and then a high risk by Sunday. Went ahead
and issued a cfw for a high risk of rip currents for Sunday. Will
issue updated zfp shortly to headline the hazard for beach zones.

12 ds
prev discussion... Issued 432 am cdt Sat apr 21 2018
near term now through Saturday night ... A shortwave upper ridge will
move eastward across the central gulf coast region today, weakening
somewhat tonight as a large upper level low moves east out of the
southern plains states an approaches the southeastern states.

Meanwhile, southeasterly low level flow will increase through the
day as a cold front begins to approach the region from the west.

Moisture levels are expected to increase enough near the coast for
the possibility of a few light showers by the afternoon. Upper level
height falls ahead of the approaching upper low, in conjunction with
upper diffluence associated with the left exit region of a jet max
rotating through the base of the trough, will serve to increase deep-
layer ascent along and ahead of an attendant surface front tonight,
with chances for showers and storms increasing across the entire
area late tonight. Instabilities will be lacking through tonight
however, so primarily showers expected overnight. Highs today
expected to climb into the low to mid 70s. Min temps tonight a
little warmer than past several nights due to return flow setup off
the gulf, with lows ranging from the upper 50s over interior
northern zones to the low to mid 60s near and at the coast. 12 ds
short term Sunday through Monday night ... Will start the short
term period with an upper level low pressure system centered over
southeast ks and NE ok Sunday morning that tracks east southeast
over the mid-south by Sunday afternoon. Ahead of this system,
geopotential height fields aloft become increasingly diffluent
within the presence of mid level height falls spreading eastward
over the lower ms river valley. Wave of frontal low pressure over
ar is forecast to pivot eastward during the day Sunday with an
attendant cold front approaching from the west. East of the cold
front, a warm front is draped in a northwest to southeast
orientation initially over the central portions of the forecast
area and remains in a nearly fixed position there through the day
Sunday. South of the warm front is where slightly better
instability exists, over the coastal zones and offshore. As deep
layer ascent and frontal forcing approach from the west, any
surface based convection south of the warm front, becomes
increasingly elevated over the interior when moving northward
across the warm front. There is low confidence with the degree of
instability in the small warm sector, as presence of thickening
cloud cover could very well lead to lower amounts by a category or
so than advertised in some of the guidance. Also, strength of the
low level wind field varies between model guidance. Given
thoughts on instability wind fields, severe potential at this time
remains too low for anything higher than a marginal risk. Pop's
trend markedly higher from west to east thru the day Sunday.

Latest gridded storm total rainfall ranges from 1 to 2 inches, but
some areas could see locally higher amounts. Due to recent
flooding problems over a few areas with the passage of the last
system a week ago, will be watching closely for flooding. It will
not take much time for creeks streams to respond quickly if we see
any storms move over the same areas for a few hours.

By Sunday night, with the expected eastward progression of showers
and embedded storms thru the area, categorical pop's shift to the
far eastern zones with chances tapering back to the west.

As the surface low swings east over northern ms northern al Sunday
night, cold front makes passage. With a complex frontal low
extending from southern ga to northern ms into the day Monday,
potential exists for wrap-around moisture to linger over the
interior, where a chance of rain will be mentioned.

High risk of dangerous to potentially deadly rip currents to
remain Sunday and Sunday night along area beaches. 10
long term Tuesday through Friday ... Although upper trof axis is
progged to be positioned to the east of the local area Tuesday,
more energy riding down the base of the trof may be enough to
squeeze out a chance of some more showers as it passes across.

Heading into the mid and late week, a series of fronts make
passage across the gulf coast. We continue to see a bump in rain
chances along and ahead of the first front Wednesday night which
may linger into the day Thursday before ending. The next front
brings a quick return to rain chances Friday. 10
marine... A moderate easterly flow today will become a more southerly
moderate to occasionally strong flow tonight through Sunday night as
a cold front approaches the marine area from the west. Winds are
then expected to become moderate westerly in the wake of the front
by early Monday, with a light to moderate west to northwest flow
then continuing into the middle part of mid next week. Showers and
thunderstorms are expected over the coastal waters in association
with the frontal passage, primarily from late tonight through
Sunday night. 12 ds

Mob watches warnings advisories
Al... High rip current risk from Sunday morning through Monday morning
for alz265-266.

Fl... High rip current risk from Sunday morning through Monday morning
for flz202-204-206.

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
OBLA1 - 8737048 - Mobile State Docks, AL 0 mi41 min 68°F 65°F1021.9 hPa (+0.4)
PTOA1 3 mi41 min 68°F 58°F
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 4 mi41 min E 8 G 12 65°F 65°F1022.2 hPa (+0.8)
MHPA1 - Meaher Park, AL 6 mi41 min E 7 67°F 1022.4 hPa (+1.0)
MBLA1 - Middle Bay Light, AL 19 mi71 min E 12 65°F 1021.3 hPa
WKXA1 - Weeks Bay Reserve, AL 23 mi56 min 71°F 1022 hPa60°F
WBYA1 23 mi41 min 67°F
CRTA1 - Cedar Point, AL 28 mi71 min E 12 65°F
BSCA1 - Bon Secour, AL 29 mi41 min E 14 67°F 1022 hPa (+1.0)
GDXM6 - Grand Bay Reserve, MS 32 mi56 min E 15 68°F 1022 hPa61°F
DPIA1 - Dauphin Island, AL 32 mi41 min E 17 G 18 68°F 1021.6 hPa (+0.9)61°F
FMOA1 - 8734673 - Fort Morgan, AL 33 mi41 min E 19 G 23 69°F
KATA1 - Katrina Cut, AL 33 mi71 min E 18 67°F 1021.7 hPa
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 36 mi41 min 66°F
PPTA1 39 mi41 min 67°F 1022.4 hPa (+1.7)
PTBM6 - 8741003 - Petit Bois Island, MS 42 mi41 min E 16 G 21 67°F 1022 hPa (+0.6)
PCLF1 - 8729840 - Pensacola, FL 49 mi41 min ESE 1.9 G 7 69°F 69°F1022.3 hPa (+0.4)

Wind History for Coast Guard Sector Mobile, AL
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NE7
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mobile, Mobile Downtown Airport, AL5 mi48 minE 810.00 miOvercast69°F60°F73%1022.5 hPa
Mobile, Mobile Regional Airport, AL11 mi45 minE 1010.00 miPartly Cloudy70°F57°F64%1022.1 hPa
Sonny Callahan Airport, AL19 mi66 minE 810.00 miMostly Cloudy66°F59°F78%1021.7 hPa

Wind History from BFM (wind in knots)
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Last 24hrNE7N4N5NE6N8
G16
N7N3N5N5S4SW4W3NW3N3E8E11E10E12E16E14E14E14E15E8
1 day agoN9NE9NW7W9NW9NW9NW12
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G20
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N11N11N11N9
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2 days agoSW9
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6Calm3S4SW4SW5SW3SW5SW545W66N9N13

Tide / Current Tables for Mobile (Mobile State Docks), Alabama
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Mobile (Mobile State Docks)
Click for Map
Sat -- 12:23 AM CDT     Moonset
Sat -- 04:25 AM CDT     -0.19 feet Low Tide
Sat -- 06:18 AM CDT     Sunrise
Sat -- 11:08 AM CDT     Moonrise
Sat -- 04:52 PM CDT     1.99 feet High Tide
Sat -- 07:24 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.1-0-0.1-0.2-0.2-0.10.10.30.50.811.21.41.71.8221.91.81.61.310.8

Tide / Current Tables for Lower Hall Landing, Tensaw River, Alabama
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Lower Hall Landing
Click for Map
Sat -- 12:22 AM CDT     Moonset
Sat -- 06:17 AM CDT     Sunrise
Sat -- 07:29 AM CDT     -0.13 feet Low Tide
Sat -- 11:07 AM CDT     Moonrise
Sat -- 07:09 PM CDT     1.77 feet High Tide
Sat -- 07:23 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.60.40.20.1-0-0.1-0.1-0.1-00.10.30.50.811.21.41.61.71.81.71.61.51.3

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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 (11,2,3,4)
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Ground Weather Radar Station Mobile, AL
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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.