Marine Weather and Tides
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
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 6:51AM||Sunset 6:51PM||Monday September 27, 2021 10:37 PM CDT (03:37 UTC)||Moonrise 10:03PM||Moonset 11:58AM||Illumination 58%|
7 Day Forecast for Marine Location Near Jackson, MSHourly EDIT Help
Area Discussion for - Jackson, MS  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS64 KJAN 280241 AAA AFDJAN
Area Forecast Discussion . UPDATED National Weather Service Jackson MS 941 PM CDT Mon Sep 27 2021
UPDATE. Updated for evening discussion.
DISCUSSION. Although clouds will continue to increase and thicken from the southwest the remainder of tonight, local radars are quiet and pops have been removed until after 1AM. Hi-res models still suggest a few showers will develop over our southwest prior to sunrise. The increase in cloud cover will help maintain slightly warmer than normal temperatures through morning. /22/
Prior discussion below:
Tonight and Tuesday: Most of the area remains cloud- and rain-free this afternoon, but change is on the horizon as a warm front lifts northward across the area overnight, taking our fall-like weather with it. There is already an increase in clouds with isolated showers across south LA as deeper moisture begins to spread northward. As the front enters the area tonight, isolated shower activity is possible, with guidance favoring more development toward the predawn/early morning hours tomorrow across northeast LA/west MS. Given the continued low level increase in moisture and persistence from recent days, patchy fog is possible again early Tuesday morning, though increasing clouds should inhibit widespread development. During the daytime, along with dewpoints increasing back into the lower 70s across much of the area, scattered to numerous showers will become more numerous through the afternoon along with embedded convection. Though average rainfall amounts will be less, localized 1-2" amounts are possible in the heaviest downpours. Lowest confidence in any rain tomorrow will be across east/northeast MS, where somewhat drier air will still be hanging on. /DL/
Tuesday Night through Monday .
On Tuesday night, southerly flow will restore moisture as a midlevel shortwave trough associated with an upper level ridge meanders over the region. This looks to keep rain chances in the forecast overnight as moisture lingers. By Wednesday, weak cyclonic flow over the ArkLaMiss region may provide enough instability to generate convection throughout the region through early Thursday morning. Recent guidance puts the bulk of PVA sometime Wednesday afternoon into Wednesday night. With the peak of diurnal heating being in the afternoon, conditions look to be favorable for organized convection that may provide heavy rainfall. The best chance for these organized storms will most likely be along and W of I-55. Widespread flash flooding is not evident at this point, however isolated pockets of FF cannot be ruled out, especially in the SW.
On Thursday, the warm and moist airmass will continue to invade the ArkLaMiss region and allow for higher rain chances to continue throughout the day, but linger off in the evening. Friday through the weekend, a midlevel ridge will likely limit rain chances through the rest of the forecast period. Lingering Gulf moisture will keep diurnal thunderstorms and showers chances in the western portions of the area, but only iso/sct chances are expected. The next highest chance for widespread showers/storms will most likely be on Monday. Guidance is alluding to a weak trough stretching from the lower Great Lakes to the lower Mississippi Valley to ramp up rain chances at the beginning of next week. With a swath of dry air following this weak trough, confidence is low on the amount or spread of rainfall on Monday. For the period, temperatures will remain near normal. Highs will range in the mid to upper 80s while lows will range in the low to mid 60s. /AJ/
AVIATION. 00Z TAF discussion: VFR conditions wl prevail areawide until 09Z. After 09Z IFR/LIFR cigs wl be psbl se with mainly MVFR cigs cntrl. MVFR vsby restrictions wl also be psbl. Conditions wl improve to VFR by 16Z areawide and VFR conds wl prevail through Tue aftn. Scattered to numerous -SHRA wl be psbl by 21Z at HKS-JAN-PIB-HBG and result in brief vsby restrictions. /22/
PRELIMINARY POINT TEMPS/POPS. Jackson 65 86 69 85 / 19 63 15 69 Meridian 61 85 66 85 / 1 30 11 41 Vicksburg 70 86 71 86 / 26 68 20 76 Hattiesburg 65 86 69 85 / 8 56 23 58 Natchez 69 84 70 83 / 27 71 25 80 Greenville 68 86 69 85 / 10 49 19 64 Greenwood 65 86 69 86 / 5 47 13 52
JAN WATCHES/WARNINGS/ADVISORIES. MS . None. LA . None. AR . None.
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|Jackson, Hawkins Field Airport, MS||1 mi||44 min||ESE 3||10.00 mi||A Few Clouds||74°F||66°F||76%||1015.7 hPa|
|JB Williams Airport, MS||11 mi||42 min||N 0||10.00 mi||Mostly Cloudy||68°F||68°F||100%||1016.3 hPa|
Link to 5 minute data for KHKS
Wind History from HKS (wind in knots)
|1 day ago||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||S||Calm||Calm||E||N||E||E||Calm||Calm||Calm|
|2 days ago||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||W||Calm||N||N||N||N||Calm||Calm||Calm|
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