Monday, March27, 2017 L-36.com


Marine Weather and Tides
Destin, FL

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:40AMSunset 7:03PM Sunday March 26, 2017 11:44 PM CDT (04:44 UTC) Moonrise 5:50AMMoonset 5:45PM 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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GMZ655 Coastal Waters From Pensacola Fl To Pascagoula Ms Out 20 Nm- Coastal Waters From Destin To Pensacola Fl Out 20 Nm- 1008 Pm Cdt Sun Mar 26 2017
Rest of tonight..South winds 10 to 15 knots. Seas 3 to 4 feet.
Monday..South winds 8 to 13 knots increasing to 10 to 15 knots. Seas 2 to 4 feet. Slight chance of showers and Thunderstorms in the afternoon.
Monday night..South winds 10 to 15 knots diminishing to 8 to 13 knots. Seas 2 to 3 feet.
Tuesday..South winds 5 to 10 knots. Seas around 2 feet.
Tuesday night..South winds 5 to 10 knots becoming 8 to 13 knots. Seas around 2 feet.
Wednesday..Southeast winds 8 to 13 knots. Seas 2 to 3 feet.
Wednesday night..Southeast winds 13 to 18 knots. Seas 2 to 4 feet.
Thursday..South winds 15 to 20 knots. Seas 3 to 4 feet. Chance of showers and Thunderstorms.
Thursday night..South winds 18 to 23 knots. Seas 5 to 7 feet. Chance of showers and Thunderstorms.
Friday..West winds 13 to 18 knots. Seas 3 to 5 feet. Slight chance of showers and Thunderstorms.
Friday night..West winds 8 to 13 knots. Seas 2 to 3 feet.
GMZ600 Synopsis For Destin Fl To Pascagoula Ms Out 60 Nm Including Mobile Bay- 1008 Pm Cdt Sun Mar 26 2017
Synopsis..A light to moderate southerly wind flow persists through mid week as high pressure rebuilds over the eastern and north central gulf. A stronger onshore flow...a resultant build in seas...and higher chances of Thunderstorms return late this week as next storm system approaches from the west.

7 Day Forecast for Marine Location Near Destin, FL
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location: 30.4, -86.51     debug


Area Discussion for - Mobile/Pensacola, FL
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Fxus64 kmob 270141 aaa
afdmob
area forecast discussion... Updated
national weather service mobile al
841 pm cdt Sun mar 26 2017

Discussion See updated information for land areas below.

Update Early this evening our region is being affected by a
deep southerly surface fetch that is the return flow around an
approximate 1026 hpa surface anticyclone located just east of the
nc outer banks. Goes-r fog product wonderfully showing developing
low stratus already forming mainly along and south of the i-10.

Current forecast has it clouding over overnight - so that is one
track with patch fog becoming areas of fog later tonight. Forecast
lows in the low to mid 60s also looks on track.

Next main focus for our region will be on tomorrow afternoon's
thunderstorms, some possible containing large hail and damaging
straight line winds, mainly north of the highway 84 corridor (and
west of i-65). The main mid- and upper wave (currently associated
with the severe thunderstorms over the southern plains) will pass
fairly far to our north and also fill somewhat on its track from
the plains, across mo and into the western oh vly. As it currently
stands we are only forecasting isolated to scattered thunderstorm
coverage given the more northerly track of the aforementioned
feature. Wayne, choctaw, clarke and wilcox counties are expected
to receive the greatest coverage. There is a significant thermal
cold pool advecting by as the wave passes to our N (-14 to
-16 deg(c) forecast at 500 hpa) and low wet bulb zero hgts (close
to 8-9 kft). Thus any storms that form would likely stand a good
chance of locally damaging winds and severe hail (>1" than
diameter) for a brief period tomorrow afternoon. Mitigating
factors for this event would be relatively lower values of
absolute moisture than what we normally see. This would limit the
amount of thermodynamic instability and thus further limit
thunderstorm coverage and intensity (so, considering the
pros/cons, we are looking for about 800-1100 j/kg of MLCAPE -
which would still cause concern). 40 kt of bulk 0-6 km vws will
also exist tomorrow afternoon (using choctaw co, al as a proxy)
which will help to organize newly developing updrafts but this
will be offset somewhat by relatively weaker low-level sr inflow
which would stifle the intensity of newer and subsequent updraft
growth.

Summarizing, there is relatively high forecast confidence the
mid- and upper wave will track more to our N and this would act to
limit the amount of thunderstorm activity (so we concur with
where SPC has placed the southernmost limit of the mrgnl risk on
their latest day 2 outlook). The thunderstorms are forecast to
end during the 6-9 pm time frame altogether and we will be dealing
with patchy dense fog again tomorrow night regionwide.

Regarding rip currents, we closely analyzed everything this
afternoon and have decided, once again like yesterday, to extend
the 'high' risk of rip currents through late Monday (despite
coming into a neap cycle). Area beaches were also continuing to
fly red flags this afternoon. The wave period is still relatively
high (7 sec) with higher values to the south and the wind fetch
is still causing wave energy to disperse northward from the
central and southern glfmex. It is just going to take a while for
the swell to subside. Synoptically the pattern is non-changing, so
this is what you would expect until something does indeed change.

Have all ideas that by tomorrow afternoon we will be in a better
place. /23 jmm

Prev discussion /issued 643 pm cdt Sun mar 26 2017/
discussion... Updated for latest aviation discussion below.

Aviation...

00z issuance... Patchy dense fog and low clouds develop late
tonight into early Sunday morning, particularly during the pre-
dawn hours, with cigs/vis dipping to ifr/lifr levels. Scattered
to broken CU field withVFR (to potentially MVFR near the coast)
cigs develops Monday afternoon and evening, with scattered shra
near the coast and tsra across the interior. Gusty winds, heavy
downpours, and large hail possible in the strongest storms. /49
prev discussion... /issued 348 pm cdt Sun mar 26 2017/
near term /now through Monday/... Persistent light southerly flow
on the western periphery of a surface high positioned off the
mid- atlantic coast maintains a fairly steady state surface
dewpoint profile in the lower to mid 60s overnight. Surface based
moisture and wind direction favors the development of late night
fog. This is supported by the latest rap/hrrr and short range
ensembles. Fog could become locally dense in spots. Overnight lows
mild, ranging in the lower to mid 60s.

Next upper level storm system, ejecting out of the plains states
across the lower ms river valley Monday morning, makes steady
eastward progression across the tn river valley thru the day. This
feature allows a frontal boundary to approach the mid-south by
Monday afternoon. East of the larger scale dynamics and surface
front, precipitable water values hold near an inch. Considering
passage of modest deep layer ascent and sufficient daily
instability, a return chance of showers and storms remains in the
forecast Monday. The storm prediction center places a better
chance (slight risk of severe weather) to our north from the tn
river valley, southward to northern ms/northern al on Monday.

However, with amount of instability and wet-bulb zero heights down
to 8 to 9 kft, cannot rule out some strong to a few severe storms
containing marginally severe hail (quarter size or so) and
localized damaging wind gusts, mainly over the northwest half of
zones. It is these zones that are within a marginal risk of severe
weather that extends south of the slight risk area, with an area
defined along and west of a line from thomasville al to richton
ms. Daytime highs Monday lower to mid 80s interior to mid to upper
70s beaches. /10
short term /Monday night through Wednesday night/... The upper
level trough over the southeast CONUS will shift eastward and
weaken before moving over the western atlantic by late Tuesday
afternoon. Meanwhile an upper level ridge over the southern
plains will move east and build northward, with the central axis
moving over the region. This upper level ridge will extend from
the southeastern gulf of mexico to south central canada by Tuesday
evening and shift eastward through midweek, while a large upper
level trough exiting the rocky mountains moves over the great
plains. The surface high pressure ridge across the southeastern
states and eastern gulf will remain largely intact as a surface
low across the ohio river valley region moves east and weakens.

A weak cold front associated with the surface low will approach
the region from the northwest just reaching the northern portion
of the forecast area and stall. Other then a few isolated showers
across our far northern zones Monday night near the front and
isolated development on Tuesday north of i-10, it will be dry
through midweek.

Low temperatures each night will range from 58 to 62 degrees
inland areas, with mid 60s along the beaches. Warm temperatures
will continue on Tuesday and Wednesday with highs ranging from 80
to 85 degrees inland areas, with mid to upper 70s along the
coastal sections. /22
long term /Thursday through Sunday/... The large upper level
trough over the great plains will shift eastward, with an
embedded upper low pressure area within the trough over the
eastern portions of kansas and oklahoma lifting northeast. The
southern extent of the upper trough will swing eastward across
the deep south. The surface high pressure ridge across the
southeastern states and eastern gulf will move eastward as a
surface low forming across the southern plains lifts northeast to
the great lakes region. A weak cold front associated with the
surface low will approach the forecast area from the west Thursday
night. Scattered to numerous showers and thunderstorms will
accompany this next system on Thursday and Thursday night, with
the potential of strong to severe thunderstorms. The precipitation
will then taper off from west to east on Friday in the wake of
the front followed by high pressure building in from the west.

Above normal temperatures will continue through the long term. /22
marine... High pressure off the mid-atlantic coast Monday and
Tuesday sinks southward to the northern bahamas on Wednesday. A
general light onshore flow persists for the next several days.

Onshore flow strengthens and seas build on Thursday in response
to a strong low pressure system lifting up across the mid ms river
valley and associated frontal boundary approaching from the west.

Chances of storms increase Thursday and Thursday night, some of
which could become strong. /10

Mob watches/warnings/advisories
Al... High rip current risk through Monday evening for alz265-266.

Fl... High rip current risk through Monday evening 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
PCBF1 36 mi44 min ESE 8.9 G 9.9 68°F 71°F1018.8 hPa (+0.0)
PCLF1 - 8729840 - Pensacola, FL 37 mi44 min S 7 G 9.9 71°F 72°F1018 hPa (+0.3)
PACF1 - 8729108 - Panama City, FL 48 mi44 min ESE 4.1 G 5.1 68°F 70°F1019 hPa (+0.0)
42012 - Orange Beach AL Buoy 60 mi54 min SSE 9.7 G 12 71°F 70°F3 ft1017.5 hPa (+0.4)

Wind History for Pensacola, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Destin, Destin-Ft. Walton Beach Airport, FL2 mi51 minSE 39.00 miOvercast71°F71°F100%1018.1 hPa
Valparaiso / Eglin Air Force Base, FL6 mi1.8 hrsSSE 710.00 miOvercast69°F67°F94%1019.2 hPa
Hurlburt Field, FL9 mi1.8 hrsESE 610.00 miOvercast70°F69°F100%1018.1 hPa

Wind History from DTS (wind in knots)
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Last 24hrE4SE8SE7S86S5S4SE5SE9SE8SE8SE10SE10SE9SE11SE10SE6S7SE6SE5SE5SE5SE6SE3
1 day agoSE5SE6SE10SE10SE11SE11SE10SE11SE9SE12SE11SE13
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2 days agoE11SE18
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Tide / Current Tables for East Pass (Destin), Choctawhatchee Bay, Florida
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East Pass (Destin)
Click for Map
Mon -- 06:30 AM CDT     Moonrise
Mon -- 06:40 AM CDT     Sunrise
Mon -- 09:28 AM CDT     0.16 feet Low Tide
Mon -- 12:39 PM CDT     0.20 feet High Tide
Mon -- 06:47 PM CDT     Moonset
Mon -- 07:02 PM CDT     Sunset
Mon -- 07:26 PM CDT     0.16 feet Low Tide
Mon -- 09:59 PM CDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.30.30.30.30.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.2

Tide / Current Tables for Harris, The Narrows, Florida
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Harris
Click for Map
Mon -- 01:27 AM CDT     0.98 feet High Tide
Mon -- 06:31 AM CDT     Moonrise
Mon -- 06:41 AM CDT     Sunrise
Mon -- 10:21 AM CDT     0.34 feet Low Tide
Mon -- 02:31 PM CDT     0.56 feet High Tide
Mon -- 06:48 PM CDT     Moonset
Mon -- 07:02 PM CDT     Sunset
Mon -- 09:03 PM CDT     0.36 feet Low Tide
Mon -- 09:59 PM CDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.9110.90.90.80.60.50.40.40.30.40.40.50.60.60.50.50.50.40.40.40.40.5

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 (0,6,7,8)
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Ground Weather Radar Station Northwest Florida
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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 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.