Monday, December9, 2019
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Marine Weather and Tides
Bassfield, MS

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:43AMSunset 4:55PM Monday December 9, 2019 11:41 AM CST (17:41 UTC) Moonrise 4:25PMMoonset 5:07AM Illumination 95% Phase: Waxing Gibbous; Moon at 13 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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GMZ530 Lake Pontchartrain And Lake Maurepas- 949 Am Cst Mon Dec 9 2019
Rest of today..South winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of light rain in the afternoon.
Tonight..South winds 10 to 15 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of light rain through the night. Patchy fog in the late evening.
Tuesday..South winds 10 to 15 knots becoming north late in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Patchy fog in the morning. Chance of light rain early in the morning. Light rain likely late in the morning, then light rain in the afternoon.
Tuesday night..North winds 15 to 20 knots. Waves 3 to 5 feet. Dominant period 4 seconds. Light rain in the evening, then showers likely after midnight.
Wednesday..Northeast winds 15 to 20 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers.
Wednesday night..Northeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers in the evening.
Thursday..Northeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Thursday night..Northeast winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers through the night. Slight chance of Thunderstorms after midnight.
Friday..Northeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of Thunderstorms in the morning. Chance of showers through the day.
Friday night..North winds near 5 knots. Waves 1 foot or less. Dominant period 4 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 949 Am Cst Mon Dec 9 2019
Synopsis..A cold front will move through the coastal waters Tuesday night. High pressure will then build into the area while a surface low develops over the central gulf Friday. This low could affect the coastal waters by the end of the week.


7 Day Forecast for Marine Location Near Bassfield, MS
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location: 31.5, -89.84     debug


Area Discussion for - Jackson, MS
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FXUS64 KJAN 091719 AFDJAN

Area Forecast Discussion National Weather Service Jackson MS 1119 AM CST Mon Dec 9 2019

UPDATE. Updated for morning discussion.

DISCUSSION. It will be a rather warm December day across the region. Temperatures are already well into the 60s and reaching the lower 70s this morning. This comes as gusty southerly winds help to bring in moisture and warmer air into the region. As moisture increases across the area and another disturbance moves across, there could be some light showers this afternoon. Delayed the timing until futher into the day and took out potential this morning. Otherwise, going forecast in decent shape. /28/

Prior discussion below:

Through tonight: WV imagery this morning showing our next weather maker in the form of a mid level wave dropping south through southern CA into northwestern Mexico. In advance, a large swath of moisture has been tapped from west of Baja and is being funneled northeastward across the southern CONUS in increasingly southwest mid level flow. Already, mid/high level cloudiness has built into the region.

At the surface, high pressure remains centered off the east coast while a shallow cold front approaches the MS valley from the Plains. The tightening pressure gradient ahead of the boundary will allow low level winds to increase today, especially over the open areas of the ArkLaMiss Delta. As the southwest flow aloft continues and low level winds increase today, moisture levels will increase steadily in the column, enough so for showers to be possible by late morning/afternoon over the south and west.

Coverage of showers will increase from the northwest tonight as convergence along the frontal boundary encounters increasing low level moisture. Some thunder looks possible over the south where model soundings are indicating 300-500 J/kg of skinny CAPE ahead of the boundary. With the mid level energy moving into the region after midnight, backing winds aloft will allow widespread isentropic rains to break out, especially overtop the passing boundary./GG/

Tuesday Night through Sunday: Really the only period of interest for the remainder of the week will be Tuesday into Tuesday night as the anticipated shortwave trough swings east over our region and a colder post-frontal air mass seeps in from the northwest. With the right entrance region of the upper-level jet positioned overhead into Wednesday night, frontogenesis through the mid- levels should continue to support precipitation falling behind the cold front. Drier air will gradually work in aloft and at the surface as the trough axis moves eastward, but there may be enough of a window for a wintry mix to develop in the cooling air mass.

Looking at forecast soundings especially across northern Mississippi and southeast Arkansas, the column will be awfully close to the tipping point between all rain and all snow, with precipitation rates being increased due to dynamics aloft. Given the uncertainties of just how much of a warm layer will remain aloft, and if low-level temps can chill to near freezing, weather type has been set at a mix of rain or snow mixing into areas generally around the US Highway 82 corridor and northwards. Have also included a light accumulation of snow up to around one quarter of an inch in those areas, but warmer ground temperatures and the likelihood of standing puddles, etc. before any kind of transition can occur will probably limit much if any accumulation. Will also include a "Limited" threat area for winter weather to the Hazardous Weather Outlook text and graphics for this potential. For areas to the south of this zone, a little light wintry mix cannot be ruled out as precip tapers off Tuesday night, but confidence in a change over is much lower to include in the weather grids at this time.

The rest of the forecast is relatively low key, with a gradual warming trend ahead of the next shortwave trough passage over the weekend. A chance for showers will return to parts of the forecast area Friday into Saturday as this system passes, but at this time do not anticipate thunderstorms or winter weather to be of any concern for the weekend. /NF/

AVIATION. 12Z TAF discussion: Variable IFR/MVFR conditions early this morning will become predominantly MVFR by mid morning and VFR this afternoon into the early evening. Isolated showers will begin developing by late morning with more widespread rainfall developing during the evening and continuing through the end of the period as a cold front enters the region from the northwest. Just ahead and behind the front, IFR/MVFR conditions will develop during the evening and overspread the area overnight with the southward movement of the front./GG/

PRELIMINARY POINT TEMPS/POPS. Jackson 74 50 53 35 / 28 89 100 96 Meridian 72 55 63 36 / 17 75 100 99 Vicksburg 77 47 50 34 / 26 89 100 84 Hattiesburg 75 60 69 40 / 23 60 98 98 Natchez 76 52 54 36 / 31 89 100 93 Greenville 71 41 43 30 / 19 84 100 55 Greenwood 72 44 45 30 / 18 88 100 73

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



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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 86 mi66 min S 8 G 12 66°F 61°F1016 hPa

Wind History for Bay Waveland Yacht Club, MS
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hattiesburg/Laurel, Hattiesburg-Laurel Regional Airport, MS27 mi46 minSSW 710.00 miOvercast67°F63°F87%1015.2 hPa

Link to 5 minute data for KPIB

Wind History from PIB (wind in knots)
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Last 24hrCalmSE6SE4SE7SE5SE5CalmCalmSE4SE5S3S3S4S4S4S4S5S3CalmS5S4S5S9S7
1 day agoN9N8N4N6NW3CalmCalmCalmCalmCalmN3CalmCalmCalmNW3N3CalmN3CalmCalmCalmCalmE3S5
2 days agoS64Calm4N6N4N4N3CalmN4N7N8N5N5N9N7N6N7N6N5N6NE5NE7N5

Tide / Current Tables for Waveland, Mississipi Sound, Mississippi
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Waveland
Click for Map
Mon -- 04:03 AM CST     Moonset
Mon -- 06:42 AM CST     Sunrise
Mon -- 07:08 AM CST     0.08 feet Low Tide
Mon -- 03:24 PM CST     Moonrise
Mon -- 04:56 PM CST     Sunset
Mon -- 09:21 PM CST     1.50 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.10.90.70.50.30.20.10.10.10.20.30.50.70.80.911.11.21.31.41.51.51.51.4

Tide / Current Tables for Bay Waveland Yacht Club, Bay St. Louis, Mississippi
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Bay Waveland Yacht Club
Click for Map
Mon -- 04:03 AM CST     Moonset
Mon -- 06:42 AM CST     Sunrise
Mon -- 07:07 AM CST     0.03 feet Low Tide
Mon -- 03:24 PM CST     Moonrise
Mon -- 04:56 PM CST     Sunset
Mon -- 09:23 PM CST     1.54 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.110.70.50.30.20.100.10.10.30.40.60.80.9111.11.21.41.51.51.51.4

Weather Map
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wmap_A
GEOS 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 (12,3,4,5)
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Ground Weather Radar Station Jackson/Brandon, MS
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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.