Wednesday, July15, 2020
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Marine Weather and Tides
Gulfport, MS

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:03AMSunset 8:01PM Wednesday July 15, 2020 2:08 AM CDT (07:08 UTC) Moonrise 1:58AMMoonset 3:35PM Illumination 26% Phase: Waning Crescent; Moon at 25 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- 1023 Pm Cdt Tue Jul 14 2020
Rest of tonight..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Wednesday..West winds 5 to 10 knots becoming southwest in the afternoon. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms through the day.
Wednesday night..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Thursday..West winds near 5 knots becoming south in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Thursday night..South winds 5 to 10 knots becoming north after midnight. Waves 1 foot or less. Dominant period 4 seconds.
Friday..Northeast winds 5 to 10 knots becoming southeast in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms in the afternoon.
Friday night..East winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Saturday..Southeast winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms in the afternoon.
Saturday night..East winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Sunday..Southeast winds 5 to 10 knots. Waves 1 to 2 feet. Chance of showers and Thunderstorms.
Sunday night..East winds 5 to 10 knots. Waves less than 1 foot. Slight chance of showers and Thunderstorms after midnight.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 1023 Pm Cdt Tue Jul 14 2020
Synopsis..High pressure will remain settled over the central gulf waters through the week.


7 Day Forecast for Marine Location Near Gulfport, MS
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location: 30.36, -89.08     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 150053 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 753 PM CDT Tue Jul 14 2020

UPDATE. updated for 00z taf issuance.

PREV DISCUSSION. /issued 400 PM CDT Tue Jul 14 2020/

DISCUSSION . Scattered showers and storms currently affecting areas generally along the I-10 and 12 corridors east of I-55. Gusty winds, frequent lightning and even small hail have been reported with some of these storms. One storm near Bay St Louis also produced a water spout that may have briefly moved on shore. These storms are also kicking out some decent outflow boundaries that are serving to cool off some areas. The most noticeable cooling was in the vicinity of Gulfport where temperatures actually dropped down into the low to mid 70s as one of the stronger storms mixed down rain cooled air from aloft. Expect generally scattered showers and storms to continue through the remainder of this afternoon, but this activity should wane quickly as we lose daytime heating this evening.

Weather pattern will be a bit more active the next few days as ridging aloft weakens in response to a passing trough to the north. This should allow higher convective coverage and in return also help keep afternoon temperatures a couple degrees lower. Current forecast calls for heat index values to top out around 105 degrees tomorrow, so will not be issuing a heat advisory for tomorrow at this time.

A few strong storms will be possible again tomorrow, with gusty winds, frequent lightning, and locally heavy rainfall being the primary concerns. Precipitable water is forecast to be back up over 2 inches by tomorrow afternoon, so a few storms could be more efficient rain producers. Not looking at any real threat of widespread flash flooding, but a quick 1-2" could be possible in some places, resulting in street flooding and ponding of water in low lying and poor drainage areas.

Some slight "drying" of the column is forecast by Friday so expect a return to more typical scattered afternoon showers and storms. Obviously "drying" is in the relative sense because let's be real, it's summer on the Gulf Coast. Precipitable water will still be in the 1.5-1.75" range and surface dewpoints are forecast to be in the low to mid 70s. Bottom line - it'll still be muggy, but maybe you won't need gills to breathe.

Typical summertime pattern looks to persist into early next week with highs in the low to mid 90s, lows in the mid to upper 70s, and generally scattered afternoon showers and thunderstorms.

AVIATION . VFR conditions are expected through the overnight hours but increasing chances of showers and thunderstorms are expected during the morning into the afternoon tomorrow. Any storms that impact terminals can impact visibilities/ceilings. -BL

MARINE . Expect generally benign conditions over the coastal waters with winds 10 kts or less with the exception of in the vicinity of any storms and brief period overnight tonight when winds could approach 15kts. Expect daily showers and storms to produce locally hazardous conditions with lightning, gusty winds, and heavy rainfall will be possible with storms each day.

PRELIMINARY POINT TEMPS/POPS. MCB 76 92 75 90 / 20 50 10 60 BTR 77 92 76 92 / 20 40 10 70 ASD 77 92 75 91 / 20 70 10 70 MSY 79 91 77 90 / 10 70 10 70 GPT 78 89 77 88 / 20 70 10 60 PQL 76 92 74 91 / 20 70 10 50

LIX WATCHES/WARNINGS/ADVISORIES. LA . Heat Advisory until 8 PM CDT this evening for LAZ034>037-039-040- 046>050-056>072.

GM . None. MS . Heat Advisory until 8 PM CDT this evening for MSZ068>071-077- 080>082.

GM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 13 mi51 min 87°F
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 27 mi51 min 83°F
PTBM6 - 8741003 - Petit Bois Island, MS 32 mi69 min SW 9.9 G 11 1015.8 hPa
42067 - USM3M02 34 mi69 min WSW 12 G 14 86°F 2 ft1015.2 hPa (-0.3)
GDXM6 - Grand Bay Reserve, MS 35 mi84 min WSW 5.1 85°F 1017 hPa81°F
KATA1 - Katrina Cut, AL 46 mi69 min WSW 8.9 -40°F 1015.9 hPa (-0.3)
SHBL1 - 8761305 - Shell Beach, LA 46 mi51 min 91°F

Wind History for West Pier, Port of Gulfport, MS
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gulfport - Gulfport-Biloxi International Airport, MS3 mi76 minWSW 310.00 miFair82°F78°F88%1015 hPa
Keesler Air Force Base / Biloxi, MS10 mi73 minWSW 510.00 miFair85°F79°F83%1015.5 hPa

Link to 5 minute data for KGPT

Wind History from GPT (wind in knots)
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Last 24hrCalmW3CalmCalmCalmCalmW5NW7N5NW3CalmS7S8CalmS3CalmS3CalmS3S3CalmCalmW3SW3
1 day agoCalmCalmCalmN4SE3N5N3S4NW4NW3NW7S4NW7--4E18
G23
SW4S3S3CalmCalmW3CalmCalm
2 days agoCalmNW3CalmCalmCalmCalmCalmCalmCalmW5353SW75SW4W6W6SW3W3CalmCalmE3SE3

Tide / Current Tables for Gulfport, Gulfport Harbor, Mississippi
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Gulfport
Click for Map
Wed -- 01:57 AM CDT     Moonrise
Wed -- 06:05 AM CDT     Sunrise
Wed -- 07:50 AM CDT     1.43 feet High Tide
Wed -- 03:34 PM CDT     Moonset
Wed -- 07:11 PM CDT     0.34 feet Low Tide
Wed -- 07:59 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.80.911.21.31.41.41.41.41.41.31.10.90.70.60.50.40.40.30.40.40.50.6

Tide / Current Tables for Cat Island, Mississippi
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_A
GEOS Local Image of Southeast    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (3,6,7,8)
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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 numerous 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.