Tuesday, January16, 2018 L-36.com


Marine Weather and Tides
Perdido Beach, 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 6:44AMSunset 5:13PM Tuesday January 16, 2018 7:06 AM CST (13:06 UTC) Moonrise 7:21AMMoonset 6:04PM Illumination 0% Phase: New Moon; Moon at 29 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- 435 Am Cst Tue Jan 16 2018
.small craft advisory in effect from 3 pm cst this afternoon through late Wednesday night...
Today..East winds 8 to 13 knots becoming north 15 to 20 knots. Seas 1 to 2 feet. Dominant wave period 5 seconds.
Tonight..North winds 18 to 23 knots. Seas 3 to 4 feet. Dominant wave period 4 seconds. Slight chance of rain. Slight chance of snow after midnight.
Wednesday..North winds 18 to 23 knots diminishing to 15 to 20 knots. Seas 3 to 4 feet. Dominant wave period 4 seconds.
Wednesday night..North winds 15 to 20 knots diminishing to 13 to 18 knots. Seas around 2 feet. Dominant wave period 4 seconds.
Thursday..Northeast winds 10 to 15 knots becoming north 8 to 13 knots. Seas 1 to 2 feet. Dominant wave period 4 seconds.
Thursday night..Winds light becoming north 3 to 8 knots. Seas around 1 foot. Dominant wave period 4 seconds.
Friday..East winds 3 to 8 knots. Seas around 1 foot. Dominant wave period 3 seconds.
Friday night..Southeast winds 8 to 13 knots. Seas around 1 foot. Dominant wave period 3 seconds.
Saturday..Southeast winds 10 to 15 knots. Seas around 2 feet.
Saturday night..Southeast winds 13 to 18 knots. Seas 3 to 4 feet. Slight chance of showers.
GMZ600 Synopsis For Pascagoula Ms To Okaloosa Walton County Line Fl Out 60 Nm Including Major Area Bays And Sounds- 435 Am Cst Tue Jan 16 2018
Synopsis..Generally light east flow increases and shifts to northerly Tuesday evening behind a strong frontal passage. Strong offshore flow will continue through Wednesday night, then diminish and become more east to southeasterly later this week and over the weekend as high pressure builds east of the marine area.

7 Day Forecast for Marine Location Near Perdido Beach, AL
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location: 30.39, -87.43     debug


Area Discussion for - Mobile/Pensacola, FL
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Fxus64 kmob 161126
afdmob
area forecast discussion
national weather service mobile al
526 am cst Tue jan 16 2018

Discussion Updated for latest aviation discussion below.

Aviation
12z issuance... MVFR ceilings gradually move in this morning ahead
of a cold front. The frontal passage occurs from northwest to
southeast late this morning through this afternoon, with winds in
its wake increasing to around 15 knots with higher gusts. Some
light showers, transitioning to a wintry mix, will be possible
along and behind the front this afternoon and evening. Skies then
gradually clear late tonight, withVFR conditions returning
across much of the area towards the end of this forecast period.

49

Prev discussion issued 511 am cst Tue jan 16 2018
near term now through Tuesday night ... An amplifying upper level
trough over the great lakes rotates across the eastern conus
through the near term period. This pushes a strong cold front
southeast into the deep south and through the local area late this
morning and afternoon. Expect today's highs to be reached ahead
of this frontal passage, as temperatures in its wake will quickly
plummet with the onset of strong cold air advection. A broad area
of large-scale forcing associated with the upper trough will
support a band of precipitation following the frontal passage.

Model guidance continues to indicate these showers beginning as a
wintry mix of rain and snow, then quickly transitioning to all
light snow as temperatures fall below freezing. This band is
progged to reach our interior SE ms SW al counties early this
afternoon, the i-65 corridor between 6pm and midnight cst, and
eventually exit our area to the southeast late tonight. Only minor
snow accumulations are expected, with most only seeing up to half
an inch, though some inland areas could see isolated amounts up
to or just over an inch. A winter weather advisory remains in
effect for all areas along and north of the i-10 corridor from
noon today until 6am cst Wednesday. Given the generally light
accumulations, not anticipating any significant travel impacts
from this system. That said, any localized heavier snow bands will
be capable of producing slick spots on roads, especially on
bridges and overpasses.

A bitter cold night is in store for areas that see skies clear in
the wake of the front. A hard freeze warning is in effect starting
at midnight tonight, generally along and west of i-65 where low
temps will range from the mid teens to around 20 degrees. Elsewhere,
lingering cloud cover will mean lows in the low to mid 20's. One
concern regarding these bitter temperatures is the potential for
black ice early Wednesday morning, as any residual moisture left on
roads will freeze and cause slick spots. Also, the combination of
these temperatures and north winds around 10 to 15 mph will result
in single digit wind chill values for much of the area. Thus, a wind
chill advisory is in effect from midnight tonight until 11am cst
Wednesday. 49
short term Wednesday through Thursday night ... A brisk northerly
wind will continue Wednesday into Wednesday night as a strong 1040
mb surface high pressure area settles across the lower mississippi
river region. This high will then shift east across the southeast
states Thursday and Thursday night, bringing light and variable
winds to the area. A prolonged very cold air mass will persist
across the region through the short term. As a result, the hard
freeze warning has been extended to include all zones Wednesday
night into Thursday morning. A wind chill advisory will also
likely be required Wednesday night into Thursday morning.

The upper shortwave will move quickly east of the area Wednesday
and Wednesday evening, with a dry very cold air mass filtering
into the region from the north. This air mass will remain in place
through the remainder of the short term as upper flow becomes
zonal, keeping the area precipitation free.

High temperatures on Wednesday will struggle to reach just above
freezing by mid afternoon despite the sunny skies, ranging from
33 to 38 degrees. Again, these bitter temperatures may result in
the potential for black ice through early afternoon Wednesday, as
any residual moisture left on roads will freeze and cause slick
spots. Low temperatures Wednesday night will range from 13 to 18
degrees, and around 20 degrees at the beaches. Temperatures on
Thursday will reach the mid 40s, falling into the upper teens to
mid 20s overnight. 22
long term Friday through Monday ... The surface high pressure
will continue to move east across the western atlantic late in the
week, but a trailing surface ridge will remain across the
southeast states. An upper level shortwave shortwave will exit the
rockies on Saturday, and move east over the great plains on
Sunday. An associated surface low pressure area developing across
the western high plains late in the week will deepen and lift
northeast toward the western great lakes through Monday, while a
cold front approaches the region from the northwest. These
features will bring widespread rain back to the region early next
week, along with possible embedded isolated thunderstorms. 22
marine... A strong cold front pushes through the marine area this
afternoon, bringing increasing offshore flow and building seas late
today through Wednesday night. A small craft advisory is in effect
from 3pm cst this afternoon until 6am cst Thursday. Winds and seas
then gradually diminish Thursday, with light east to southeast flow
developing by the weekend as high pressure builds over the eastern
gulf. Onshore flow then strengthens late this weekend into early
next week as showers and thunderstorms return ahead of the next
approaching weather system. 49

Mob watches warnings advisories
Al... Hard freeze warning from midnight tonight to 9 am cst Thursday
for alz051>059-261>264.

Winter weather advisory from noon today to 6 am cst Wednesday
for alz051>060-261>264.

Wind chill advisory from midnight tonight to 11 am cst Wednesday
for alz051>060-261>264.

Hard freeze warning from 11 am Wednesday to 9 am cst Thursday
for alz060-265-266.

Fl... Hard freeze warning from midnight tonight to 9 am cst Thursday
for flz201.

Winter weather advisory from noon today to 6 am cst Wednesday
for flz201-203-205.

Wind chill advisory from midnight tonight to 11 am cst Wednesday
for flz201-203-205.

Hard freeze warning from 11 am Wednesday to 9 am cst Thursday
for flz202>206.

Ms... Hard freeze warning from midnight tonight to 9 am cst Thursday
for msz067-075-076-078-079.

Winter weather advisory from noon today to 6 am cst Wednesday
for msz067-075-076-078-079.

Wind chill advisory from midnight tonight to 11 am cst Wednesday
for msz067-075-076-078-079.

Gm... Small craft advisory from 3 pm this afternoon to 6 am cst
Thursday for gmz630>636-650-655-670-675.

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
PPTA1 10 mi66 min 47°F 1029.1 hPa (+0.0)
WBYA1 21 mi48 min 45°F
WKXA1 - Weeks Bay Reserve, AL 21 mi81 min 38°F 1029 hPa38°F
BSCA1 - Bon Secour, AL 22 mi66 min NNE 6 46°F 1029.5 hPa (-0.0)
MBLA1 - Middle Bay Light, AL 31 mi66 min N 8 46°F 1029.1 hPa (+0.3)
MHPA1 - Meaher Park, AL 33 mi66 min N 2.9 43°F 1029.5 hPa (-0.0)
FMOA1 - 8734673 - Fort Morgan, AL 33 mi48 min NNE 9.9 G 11 49°F
DPIA1 - Dauphin Island, AL 36 mi66 min N 7 G 8 48°F 1028.6 hPa (-0.0)
PTOA1 37 mi48 min 42°F 39°F
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 38 mi48 min WNW 1.9 G 2.9 41°F 51°F1030.1 hPa
CRTA1 - Cedar Point, AL 38 mi66 min NNE 7 46°F 1028.8 hPa (+0.3)
OBLA1 - 8737048 - Mobile State Docks, AL 39 mi48 min 41°F 49°F1029.8 hPa
KATA1 - Katrina Cut, AL 42 mi66 min NNE 12 40°F 1029.5 hPa (+0.3)

Wind History for Pensacola, FL
(wind in knots)    EDIT      (on/off)   Help
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Last
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NE4
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pensacola Naval Air Station, FL7 mi70 minNNE 3 miFair41°F37°F89%1028.9 hPa
Pensacola - Pensacola International Airport, FL13 mi73 minENE 510.00 miFair43°F37°F80%1029.2 hPa
Jack Edwards Airport, AL15 mi71 minN 010.00 miFair38°F37°F97%1028.8 hPa
Sonny Callahan Airport, AL24 mi71 minN 010.00 miPartly Cloudy37°F35°F93%1029.5 hPa

Wind History from NPA (wind in knots)
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Last 24hrN4NE5N7NE5NE7E8SE3SE8SE7SE5SE5CalmCalmCalmCalmCalmNW3N3CalmN3N3N3E3NE3
1 day agoN6N8N12N8NE8N85NE6N9N7N4N3NW4N3CalmN4N5NE5N5N5N3N5N4N5
2 days agoN13
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N11N10N10N11N6N8

Tide / Current Tables for Nix Point, Perdido Bay, Florida
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Nix Point
Click for Map
Tue -- 06:20 AM CST     Moonrise
Tue -- 06:46 AM CST     Sunrise
Tue -- 12:10 PM CST     -0.21 feet Low Tide
Tue -- 05:04 PM CST     Moonset
Tue -- 05:12 PM CST     Sunset
Tue -- 08:18 PM CST     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.60.60.50.40.30.20.1-0-0.1-0.2-0.2-0.2-0.2-0.2-0.1-00.10.10.20.30.40.50.6

Tide / Current Tables for Entrance, Pensacola Bay, Florida
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Entrance
Click for Map
Tue -- 06:19 AM CST     Moonrise
Tue -- 06:46 AM CST     Sunrise
Tue -- 07:59 AM CST     -0.51 feet Low Tide
Tue -- 05:03 PM CST     Moonset
Tue -- 05:11 PM CST     Sunset
Tue -- 08:18 PM CST     New Moon
Tue -- 08:45 PM CST     0.91 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.40.2-0-0.2-0.3-0.4-0.5-0.5-0.5-0.4-0.3-0.2-0.10.10.20.40.60.70.80.90.90.90.8

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 (8,2,3,4)
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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.