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Marine Weather and Tides
Version 3.4 |
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 6:28AM | Sunset 7:36PM | Sunday August 25, 2019 10:34 AM CDT (15:34 UTC) | Moonrise 1:12AM | Moonset 3:45PM | Illumination 24% |  |
7 Day Forecast for Marine Location Near Grenada, MS
Hourly EDIT Helplocation: 33.78, -89.81 debug
Area Discussion for - Jackson, MS
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus64 kjan 251110 afdjan area forecast discussion national weather service jackson ms 610 am cdt Sun aug 25 2019 Update Updated for 12z aviation discussion Aviation 12z TAF discussion: most TAF sites are seeingVFR conditions this morning despite some showers around the area.VFR conditions should mostly prevail through the morning but additional showers and storms will occur again today and into this evening. The best chances for today will reside in the north, which could affect kglh kgwo. Later this afternoon and through Monday, better chances for rain will affect taf sites at kgtr kmei kpib khbg and possibly kjan. Where storms occur, reduced visiblities and ceilings will be possible and MVFR or lower conditions could occur. These lowered ceilings will linger into tonight and early tomorrow, particularly in the east. 28 Discussion Today and tonight... our relatively wet pattern will continue today, and in fact, better coverage of showers and storms should occur. Pw values across the area remain in excess of 2 inches, with around 2.25 inches being sampled on the 00z klix sounding. This tropical airmass will remain across the area, which has contributed to continued showers and isolated thunderstorms overnight across portions of the arklamiss along with a stalled frontal boundary. Models continue to show that even more moisture will ooze its way into the region through the day with pw values forecast to be around 2-2.5 inches across portions of the area, especially the east and southeast part of the forecast area. For some locations, this is in the 97th to 99th percentile. The impetus for this influx of moisture is an area of low pressure that is sitting across the northern gulf of mexico, just offshore of louisiana. Through the course of today, this low will slowly progress to the north and east, eventually moving onshore across southern louisiana. As this occurs, additional showers and some storms will move into the southern sections of the forecast area. This low will trek to the north and east across southeast mississippi through the evening and overnight hours, increasing potential for showers and storms in this location through pre-dawn Monday morning. Because of this, the best rainfall QPF will be generally along and east of the natchez trace parkway, with the bulk of it occurring most likely between midnight and 7am Monday. Rainfall totals through Monday morning will be around 1.5 to 2.5 inches from roughly bude to columbus and locations south and east of this line. With high atmospheric moisture, efficient rainfall should occur and some locations may see heavier rainfall, especially if rain storms train over the same locations. This may lead to localized flooding and will go ahead and advertise this limited risk in the hwo graphics for this area. This will coincide with at least a portion of the day 1 marginal and slight risks for excessive rainfall from wpc. If rainfall totals increase or model guidance suggests a slower moving low pressure system, future shifts may want to consider a flash flood watch for south southeast east mississippi for later tonight into early Monday but we will hold off for now. Rain and storms expected today further north across the highway 82 corridor will be less associated with this low pressure system and more with a shortwave dropping south and this stalled boundary over the region. Rainfall amounts in this corridor will range from half of an inch in the delta to two inches in the golden triangle(some of which may also be influence from the incoming low later in the night). Clouds and rain today should hinder temperatures. Highs are expected to reach into the 80s today across the area. 28 Monday through early next weekend: the perturbed & stormy pattern will remain in place around early |
week before a drier, slightly cooler & near seasonable pattern will move in mid-late week. At the start on Monday, a weak surface low pressure & shortwave trough will be becoming phased into longwave synoptic trough & cold front digging southeast out of the plains. This will only help bring a stronger low-level jet & influx of tropical moisture (i.E. 2-2.5 inch pws) across most of the area. With a stationary front lingering across to the north, expect increasing isentropic ascent & moisture transport & convergence to combine with synoptic jet dynamics to favor widespread rain & storms. Global & high resolution guidance continue to depict tropical moisture laden air supportive of high rainfall totals. Some gradual totals of 2-3 inches are indicated, possibly locally higher. Will continue the threat for locally heavy rainfall & localized flash flooding in the hwo & graphics into Monday afternoon. This threat will likely be diurnally drive further north & more mesoscale & surface feature driven further south closer to any surface low. The euro is a little more on the aggressive side on the surface feature, while the other suite of consensus is a little less clear on the details. Even saying that, the newer euro has backed off on qpf in the northeast, so resolving some of these mesoscale details will be difficult. In the wake, we will be either in a zonal to northwesterly synoptic flow, with a broad trough swinging off to our north. This will lead to increased forcing & juxtaposition of favorable parameter space (i.E. Steeper lapse rates vertical totals into the mid-upper 20s & little better low-mid level bulk shear up to ~20-25kts or so @ 0-3km & 0-6km) for some strong storms & isolated severe storm potential by early-mid week (i.E. Tues.-wed.). Being on the eastern periphery of the ridge to the west will keep any central plains MCS of concern, but we may be just enough to the east to remain out of the higher threat. For now, will keep mention of severe out of the hwo, but may be needed as we get closer. Global consensus has been consistent on the cold front around mid-late week, with the GFS slightly slower. Regardless, surface high pressure will build in the wake, with much drier air & pattern in the wake & cooler than normal lows & near to slightly below normal warmth. Global consensus continue to depict a broad & weak easterly wave surface trough drifting west across the eastern gulf of mexico into early next weekend, with another front diving down, based on the 00z euro. Numerous rain & storms can be expected on Monday, with the highest chances across the i-59 & highway 45 corridor through midday Monday. Expect these chances to build to the east-northeast into Tuesday. Heat stress will remain hampered by this pattern, with some potential west of the mississippi river on Tuesday. For now, there remain too much uncertainty on mesoscale storm details to outline any heat potential. Highs will generally be below at the start of the work week, due to widespread clouds & storms, before being near or slightly below normal early-mid week or so. Below normal lows, even into the low-mid 60s, are possible late week & into the weekend. This cooler & drier pattern will be a nice reprieve from the humid & stormy pattern early in the week. Dc Preliminary point temps pops Jackson 87 72 87 73 80 69 63 16 meridian 89 72 84 72 82 82 75 28 vicksburg 88 73 89 75 64 49 42 11 hattiesburg 88 72 85 73 82 82 75 19 natchez 85 73 87 74 77 61 48 11 greenville 88 72 89 74 74 50 26 10 greenwood 87 72 86 74 81 59 44 14 Jan watches warnings advisories Ms... None. La... None. Ar... None. 28 |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a mapAirport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Greenwood, Greenwood-LeFlore Airport, MS | 24 mi | 1.7 hrs | SE 4 | 10.00 mi | Light Rain | 77°F | 73°F | 90% | 1014 hPa |
Link to 5 minute data for KGWO
Wind History from GWO (wind in knots)
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| Last 24hr | N | Calm | Calm | Calm | Calm | N | NE | N | Calm | Calm | SE | NE | NE | SE | ||||||||||
| 1 day ago | Calm | S | SW | S | SW | S | Calm | N | NE | Calm | Calm | SW | Calm | Calm | Calm | S | S | |||||||
| 2 days ago | Calm | SW | Calm | Calm | S | S | S | Calm | Calm | S |
Tide / Current Tables for
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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 (11,2,3,4)
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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 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. |