Saturday, July21, 2018 L-36.com


Marine Weather and Tides
West Hattiesburg, MS

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7/21/2018 Trying to make page Mobile Friendly

Sunrise 6:06AMSunset 8:01PM Saturday July 21, 2018 10:15 PM CDT (03:15 UTC) Moonrise 3:01PMMoonset 1:32AM Illumination 68% Phase: Waxing Gibbous; Moon at 9 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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GMZ532 Mississippi Sound- 331 Pm Cdt Sat Jul 21 2018
.small craft exercise caution in effect from midnight cdt tonight through Monday morning...
Tonight..West winds 15 to 20 knots. Waves 3 to 5 feet. Dominant period 4 seconds.
Sunday..West winds 15 to 20 knots. Waves 3 to 5 feet. Dominant period 4 seconds.
Sunday night..West winds 10 to 15 knots becoming north 5 to 10 knots after midnight. Waves 1 foot or less. Dominant period 4 seconds.
Monday..West winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Monday night..West winds 5 to 10 knots becoming north 10 to 15 knots in the late evening. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Tuesday..North winds 10 to 15 knots becoming northwest 5 to 10 knots in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday night..North winds 10 to 15 knots. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Wednesday..North winds 5 to 10 knots becoming west in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Wednesday night..North winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Thursday..North winds 5 to 10 knots becoming south in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Thursday night..Southwest winds 5 to 10 knots. Waves 1 foot or less. Slight chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 331 Pm Cdt Sat Jul 21 2018
Synopsis..A low pressure system along the eastern seaboard and a broad area of high pressure over the central and southern gulf of mexico will maintain moderate westerly winds over the coastal waters through Monday. The low pressure system should become more centered over the gulf south by Tuesday and Wednesday.

7 Day Forecast for Marine Location Near West Hattiesburg, MS
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location: 31.29, -89.51     debug


Area Discussion for - Jackson, MS
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Fxus64 kjan 220211
afdjan
area forecast discussion
national weather service jackson ms
911 pm cdt Sat jul 21 2018

Update
Updated for evening discussion.

Discussion
Skies were mostly clear this evening with temperatures in the 80s.

Overnight lows will be in the low to mid 70s. An isolated storm
cannot be ruled out later tonight, especially across eastern
portions of the area. However, the threat for severe weather is
now too low to carry a marginal risk, and this will be removed
from the hwo. No other changes were needed to the forecast. 27
prior discussion below:
through Sunday afternoon:
the decaying thunderstorm complex and its residual clouds and
relatively cool outflow this morning delayed the warmup some
today, but the heat has managed to build in as anticipated in the
last few hours. The going heat advisory will be left intact for
most of the central and western zones through early this evening
where heat index values will generally range from 105 to 110
degrees. Actual air temperatures are making a solid run at the
century mark for locations west of the ms river this afternoon and
just west of our region have mostly already surpassed this mark.

Fortunately, yesterday and today look to be the crescendo of the
heat wave in our region, although the "cooling" trend from this
point forward will be far from drastic. Another heat advisory will
be needed (and has just been issued) for mainly southern zones for
tomorrow and actual air temperatures in most other areas may not
be much cooler tomorrow than is the case today. However, over
central and northern zones tomorrow there will be less humidity
(thanks to a weak cool front dropping down from the north) and
therefore heat index values will mainly peak at or under 100
degrees in the midday through afternoon hours.

The mentioned cool front coming south this evening still has some
chance of sparking isolated showers and thunderstorms in a more or
less wnw to ese axis across the heart of the region tonight and
even into the wee hours Sunday morning. Thermal capping and
decreasing moisture aloft may well keep any deep and vigorous
convection from forming; hopefully that will prove the case
because the environment this evening will contain enough deep
layer shear, temperature lapse rates aloft, and resultant
instability to yield severe storms if convection is vigorous. We
will keep a marginal risk of severe storms going tonight along the
mentioned axis to cover this conditional threat for an isolated
severe storm or two. However, over the next few hours (and
especially after looking at our 00z sounding), it may become clear
that deep convection will not occur in our region and, if that is
the case, we will remove the risk. Bb
late weekend (Sunday night) through late next week (Friday):
primary weather pattern looks to consist of less muggy & rain &
storm chances by early week before gradual increase in rain & storm
chances & heat stress through the extended period next week.

Synoptic pattern will consist of a digging trough along & east of
the mississippi valley while deep mid-level subtropical ridging
builds westward over the southern plains & rockies. This will help
the trough & upper jet to gradually stretch out & cut off into the
early week. This will help drive the cold front fully through the
area Sunday morning, with drier air expected in the region. Global
model consensus really dries out the area with 850mb theta-e around
320-330k & pws only around an inch to inch & a half. Due to that,
expect a quiet start to the work week. Due to drier & cooler thermal
profiles filtering in (i.E. 925mb temperatures around the lower 20s
deg. C while closer to mid 20s deg. C. In the southwest on Monday &
near that areawide through mid-week), expect highs closer to normal
in the i-20 corridor & northeast while above normal in the
southwest. Highs will linger near normal in the low 90s areawide
through mid-week (Tuesday-Wednesday). Due to the drier air & cooler
thermal profiles, expect much more seasonable temperatures & heat
stress not being an issue. Due to drier air & dewpoints falling into
the 60s, also lows could fall into the upper 60s-low 70s each
morning early-mid week (i.E. Sunday night-Tuesday night). This is
especially true as the gradient lightens & winds become lighter in
the wake of the ridging building in, which would be likely in the
north of the i-20 & near the highway 82 corridors.

As the cold front stalls along the coast & the trough gradually cuts
off & slowly drifts westward through mid-late week, expect only a
very slow increase in moisture. Pws will only be around an inch & an
inch & a half or slightly higher, which should limit coverage of
convection through mid-week. With northerly low level wind, moisture
advection will be slow at best. Due to that, lowered rain chances
some through the week, especially through mid-week & kept most
confined along & southeast of the natchez trace corridor. Lapse
rates will be meager so not expecting an issue with stronger
organized convection, but couldn't rule out an isolated strong storm
or so, especially in the eastern areas later in the week. As better
moisture filters in by late this week, expect some better diurnal
rain & storm chances, especially into the weekend. In addition, with
warming thermal profiles & better moisture, heat stress will begin
to creep back up, especially by late next week. Dc

Aviation
00z TAF discussion:
vfr conditions will prevail through the TAF period. There is still
a slight chance for tsra tonight mainly at mei pib hbg, but
probabilities are too low to include vcts or prevailing tsra in
taf at this time. W NW winds will be gusty at times on Sunday.

Dl

Preliminary point temps pops
Jackson 76 95 71 92 18 4 2 3
meridian 75 95 70 92 19 10 1 16
vicksburg 77 95 72 93 12 4 5 2
hattiesburg 76 98 72 94 18 12 5 9
natchez 77 97 74 94 2 2 9 5
greenville 72 93 70 91 12 4 1 1
greenwood 72 92 69 90 16 6 1 4

Jan watches warnings advisories
Ms... Heat advisory from 10 am to 8 pm cdt Sunday for msz053-054-
059>065-072>074.

La... Heat advisory from 10 am to 8 pm cdt Sunday for laz015-016-
023>026.

Ar... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 67 mi27 min W 6 G 11 86°F 87°F1012.5 hPa

Wind History for Bay Waveland Yacht Club, MS
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hattiesburg, Bobby L Chain Municipal Airport, MS14 mi22 minWSW 410.00 miFair86°F75°F72%1011.9 hPa
Hattiesburg/Laurel, Hattiesburg-Laurel Regional Airport, MS16 mi19 minVar 310.00 miFair84°F77°F80%1012.1 hPa

Wind History from HBG (wind in knots)
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Last 24hrSW5CalmCalmCalmCalmSW8NW5NW5NW3W7NW8W5W5NW5SW8SW6W8W10W7W7SW8SW4SW5W4
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmSE4CalmCalm34W4Calm3W5W7W5SW4SW3CalmS3
2 days agoSW3W5W4CalmCalmCalmCalmCalmCalmCalmCalmCalmN3Calm3NE5E5NW5E3SW6SE3CalmS3Calm

Tide / Current Tables for Turkey Creek, Bernard Bayou, Mississippi
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Turkey Creek
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Sat -- 01:31 AM CDT     Moonset
Sat -- 06:07 AM CDT     Sunrise
Sat -- 08:30 AM CDT     1.70 feet High Tide
Sat -- 02:57 PM CDT     Moonrise
Sat -- 06:45 PM CDT     0.00 feet Low Tide
Sat -- 07:57 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.911.21.31.41.61.61.71.71.61.51.310.80.50.30.10000.10.30.4

Tide / Current Tables for Wolf River, Henderson Avenue bridge, Mississippi
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Wolf River
Click for Map
Sat -- 01:32 AM CDT     Moonset
Sat -- 06:08 AM CDT     Sunrise
Sat -- 08:25 AM CDT     1.50 feet High Tide
Sat -- 02:58 PM CDT     Moonrise
Sat -- 07:09 PM CDT     0.00 feet Low Tide
Sat -- 07:57 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.70.911.11.31.41.51.51.51.41.31.10.90.70.50.30.10000.10.20.3

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jackson, MS (23,6,7,8)
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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.