Tuesday, April20, 2021
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Marine Weather and Tides
West Hattiesburg, MS

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:21AMSunset 7:30PM Tuesday April 20, 2021 4:57 AM CDT (09:57 UTC) Moonrise 12:41PMMoonset 2:20AM Illumination 60% Phase: Waxing Gibbous; Moon at 8 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- 1002 Pm Cdt Mon Apr 19 2021
Rest of tonight..West winds near 5 knots becoming north after midnight. Waves 1 foot or less. Dominant period 4 seconds.
Tuesday..Northeast winds 5 to 10 knots becoming southwest late in the afternoon. Waves 1 foot or less. Dominant period 4 seconds.
Tuesday night..West winds 10 to 15 knots becoming northwest after midnight. Waves 1 to 2 feet. Dominant period 4 seconds.
Wednesday..North winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Wednesday night..Northeast winds 15 to 20 knots. Waves 3 to 5 feet. Dominant period 4 seconds.
Thursday..East winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Thursday night..East winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Friday..Southeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers in the afternoon.
Friday night..South winds 15 to 20 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers in the evening. Slight chance of Thunderstorms through the night. Showers likely after midnight.
Saturday..Southwest winds 15 to 20 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Showers likely in the morning. Slight chance of Thunderstorms through the day. Chance of showers in the afternoon.
Saturday night..West winds 10 to 15 knots becoming north in the late evening. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms in the evening.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 1002 Pm Cdt Mon Apr 19 2021
Synopsis..High pressure will continue to move across the northern gulf waters tonight into Tuesday. Another strong cold front will move through the region Tuesday night and early Wednesday morning with fairly strong high pressure and cool air building in behind the front Wednesday into Thursday before moving east on Friday.


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 200837 AFDJAN

Area Forecast Discussion National Weather Service Jackson MS 337 AM CDT Tue Apr 20 2021

DISCUSSION. Today and tonight . High clouds are moving across much of the area this morning. Though radar shows echoes as low as 6 kft across South MS, there is a rather dry layer below this, thus what little precip is making it to the surface will be in the form of scattered sprinkles. Heading through the day, we'll clear out and become seasonably warm, with SW/W winds breezy at times. A cold front will move into the Delta around sunset, continuing across the area overnight. With the limited period of return flow ahead of the front and PW merely surging to 0.8-0.9 in, only a diminishing band of light showers is expected across East AR and North MS tonight . furthering diminishing to sprinkles then just a band of clouds as the front pushes farther south and east. Earlier on in the evening, gusts to around 30 kt will be possible behind the front in the upper Delta. If confidence was higher in this occurring over a larger area, a limited gradient wind mention would be added to the HWO, but for now, this is something we will continue to monitor. Though few areas will receive precip, none of us will miss out on the gusty N/NW wind overnight with sharp cold advection resulting in wind chills in the 30s in some areas by Wednesday morning. /DL/

Wednesday through Monday . High pressure begins to build in from the Plains going into mid week behind the front, bringing in cooler air to the region. 500 mb flow shifts to a more zonal pattern through the end of the week. 850 mb temps drop considerably with the trough from 9C Tuesday afternoon to 2C in less than 24 hrs behind the front. High temps for Wednesday drop into the lower 60s as a result for most of the area. The high pressure ridge axis moves into the region and immediately over the FA Wednesday night. Winds become light and variable overnight. Clearing skies will set up fairly efficient radiational cooling. Temps drop by early Thursday morning into the upper 30s east of the I-55 corridor. Concerns for frost potential in the far NE where the lows may dip closer to the mid 30s. There are still some variations in the guidance, with some concern for cloud cover prohibiting the drop. That being said, the drier airmass and the fact that guidance has options that are still cooler than the forecast . will keep the cool forecast in place. Keeping the mention in the weather grids as well as the limited mention in the HWO. Easterly flow through Thursday will keep the warm up limited . though several degrees warmer than Wednesday. Southerly flow kicks in at least briefly Friday ahead of the next wave/storm system. Once again, a surge of moisture with the return flow will push the dwpts back into the 50s/lower 60s by Friday night with increasing chances for showers and thunderstorms from Friday afternoon through Saturday. ECMWF/GFS starting to come into alignment with the depth of the upper wave after it moves over the California coast and into the desert SW. But the surface low solutions still differ considerably with the ECMWF having a faster and more northerly track. GFS is still slower and weaker/amorphous with the surface circulation going into the weekend, though partially due to feedback. The precip fields are starting to hint at a concentration of qpf along a possible warm frontal feature Friday night into Saturday. Expect some changes with timing in the extended . as well as qpf/qpf axis, but so far . looks like a wet, but warmer start to the weekend. Track and timing will most definitely be impacting the threat for severe weather for Saturday as well . specifically whether or not there is enough ongoing convection/showers from the overnight to inhibit stronger convection going into peak heating ahead of the front. /HJS/

AVIATION. 06Z TAF discussion: VFR conditions prevail across the region early this morning as high clouds spread across parts of LA and South MS. A few sprinkles can't be ruled out overnight, but no substantial precip is anticipated. During the daytime, clouds will decrease and SW winds may be gusty at times. Winds will increase and shift to the NW/N later tonight as a cold front moves across the region. Precip will be limited along the front, but SHRA can't be ruled out around GWO/GLH. Ceilings will also decrease behind the front and may begin to approach MVFR by the end of the period. /DL/

PRELIMINARY POINT TEMPS/POPS. Jackson 77 43 62 40 / 1 0 0 2 Meridian 77 45 64 38 / 3 0 0 2 Vicksburg 78 43 62 41 / 0 0 0 2 Hattiesburg 77 48 66 39 / 6 0 0 0 Natchez 76 44 62 41 / 1 0 0 0 Greenville 76 39 60 42 / 0 13 0 5 Greenwood 76 40 61 41 / 1 10 0 5

JAN WATCHES/WARNINGS/ADVISORIES. MS . None. LA . None. AR . None.



DL/HJS


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 67 mi58 min N 1.9 G 1.9 69°F 67°F

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 mi65 minN 010.00 miOvercast57°F49°F74%1015.8 hPa
Hattiesburg/Laurel, Hattiesburg-Laurel Regional Airport, MS16 mi62 minN 410.00 miA Few Clouds55°F50°F83%1016.1 hPa

Link to 5 minute data for KHBG

Wind History from HBG (wind in knots)
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Last 24hrNW4NW3NW3N53NE10NE9
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N7N8NE9NW7N7NE5N4N3CalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoN3CalmNW4N66N5N7
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4N56N4N75NW6W3CalmNW6NW6N8N5NW3NW3NW5NW4
2 days agoCalmCalmCalmN3CalmN5NE4CalmN6NW4NW3N4N6NW8NW6NW4NW4N3W6NW5NW6N3NW5NW3

Tide / Current Tables for Waveland, Mississipi Sound, Mississippi
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Waveland
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Tue -- 02:00 AM CDT     First Quarter
Tue -- 02:17 AM CDT     Moonset
Tue -- 04:43 AM CDT     0.01 feet Low Tide
Tue -- 06:24 AM CDT     Sunrise
Tue -- 12:43 PM CDT     Moonrise
Tue -- 05:09 PM CDT     1.85 feet High Tide
Tue -- 07:28 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.40.20.1000.10.20.40.60.91.21.41.51.61.71.81.81.81.71.61.41.21

Tide / Current Tables for Bay Waveland Yacht Club, Bay St. Louis, Mississippi
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Bay Waveland Yacht Club
Click for Map
Tue -- 02:00 AM CDT     First Quarter
Tue -- 02:17 AM CDT     Moonset
Tue -- 05:14 AM CDT     -0.08 feet Low Tide
Tue -- 06:24 AM CDT     Sunrise
Tue -- 12:43 PM CDT     Moonrise
Tue -- 05:47 PM CDT     1.94 feet High Tide
Tue -- 07:28 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.50.30.1-0-0.1-0.100.20.50.811.31.51.61.71.81.91.91.91.71.51.31.1

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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