Wednesday, January22, 2020
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Marine Weather and Tides
Grenada, 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 7:01AMSunset 5:23PM Wednesday January 22, 2020 1:46 AM CST (07:46 UTC) Moonrise 6:15AMMoonset 4:23PM Illumination 9% Phase: Waning Crescent; Moon at 27 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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7 Day Forecast for Marine Location Near Grenada, MS
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location: 33.78, -89.81     debug

Area Discussion for - Jackson, MS
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FXUS64 KJAN 220611 AFDJAN

Area Forecast Discussion National Weather Service Jackson MS 1211 AM CST Wed Jan 22 2020

UPDATE. Updated for 06Z aviation discussion

AVIATION. 06Z TAF discussion: VFR throughout the pd under high pressure ridge axis and sct/bkn cirrus. Winds will be somewhat variable in the overnight hours, generally less than 5 kts. Only deviation from the quiet weather will be a result of precip moving in later tomorrow. Have VCSH for GLH in the evening hours as system approaches.

DISCUSSION. Cirrus continues to spill into the region this evening overtop mid level ridge moving across the area. Though the thickening cloud cover may hinder radiation to some extent in the west, relative thinness in the east will allow for somewhat more efficient heat loss overnight. Modified overnight temperatures and minimum to account for this scenario./GG/

Prior discussion below:

Expect dry weather tonight as high pressure remains in control. Lows will be chilly, ranging from the lower 20s to near 30. Look for mostly cloudy skies tomorrow as moisture increases across the region. Some light rain will be possible late in the day in the west well out ahead of an approaching frontal system. Highs tomorrow will still be on the cool side, ranging from the lower 40s north to near 50 far south. /27/

Wednesday night through Thursday night: Mid/high level moisture will continue to spread across the region as an upper trough progresses across the central CONUS Wednesday evening, with overcast conditions resulting areawide. These clouds will likely be precipitating over much of the western portion of the area, but with rather dry low level conditions (dewpoints in the 20s to near 30) most of this will initially be evaporating before reaching the surface. The low levels will gradually moisten through the night, with measurable precip becoming more likely by Thursday morning west of the I-55 corridor. With the evap cooling likely to occur given the dry low levels, wet bulb profiles suggest the potential for a brief period of sleet at onset mainly for areas farther north in the area. Confidence in this occurring remains too low to mention in the actual forecast, and with surface temps expected to be above freezing, impacts will not be a concern even if it does occur.

Thursday will be a rainy day as the associated surface low pushes across the region. The latest guidance places the highest totals across the Delta with 1-2 inches of rain possible and up to around an inch elsewhere. With richer deep layer moisture remaining closer to the coast and over the Gulf, the threat for higher rain rates is lesser than with previous systems. Still, with antecedent conditions being as they are, we'll still need to monitor for any potential river or areal flooding concerns. Rain will decrease overnight Thursday night into early Friday morning as the system pulls east of the area.

Friday through next Tuesday: Dry conditions will return as surface ridging briefly builds in Friday into Saturday. An additional upper wave will incite the development of a new surface cyclone over the NW Gulf this weekend, but with the upper jet position far to the south, guidance is indicating a track of this system also well to our south. There are some solutions that suggest light rain may spread as far north as central LA/south MS late Saturday night into Sunday, but most guidance suppresses QPF south of the forecast area. In the wake of this system, low level ridging will shift across the area on Monday. Meanwhile another upper trough will move into the western CONUS. Low level return flow will commence ahead of this system Monday into Tuesday with increasing temperatures and the potential for our next chance for rain by the middle of next week. /DL/

PRELIMINARY POINT TEMPS/POPS. Jackson 27 48 37 51 / 0 44 95 79 Meridian 25 50 36 53 / 0 9 87 91 Vicksburg 28 48 39 53 / 8 73 97 58 Hattiesburg 26 51 37 57 / 0 21 91 68 Natchez 28 50 41 56 / 11 73 97 47 Greenville 26 43 37 47 / 7 75 97 56 Greenwood 26 46 37 46 / 0 38 94 84

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



HJS

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Greenwood, Greenwood-LeFlore Airport, MS24 mi53 minN 010.00 miFair30°F21°F69%1029.5 hPa

Link to 5 minute data for KGWO

Wind History from GWO (wind in knots)
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Last 24hrNE9N8NE5N6NE8N7N10N10N7N5N8N8N6NE4NE6N4N3N3NE7CalmCalmCalmE4Calm
1 day agoN9N6N7
G15		N8N7N5N8N9N9NE8N7N9NE5W5N10
G14		NW8N6N6N6N7N6N6N5NE9
2 days agoN8
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G21		NW7NW5NW3NE4CalmN5N5NE9N8
Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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 Jackson, MS (2,6,7,8)
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Ground Weather Radar Station Columbus AFB, MS
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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.