Marine Weather and Tides
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 5:57AM||Sunset 8:11PM||Saturday July 4, 2020 7:09 AM CDT (12:09 UTC)||Moonrise 8:03PM||Moonset 5:16AM||Illumination 99%|
7 Day Forecast for Marine Location Near Pelahatchie, MSHourly EDIT Help
Area Discussion for - Jackson, MS  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS64 KJAN 041154 AFDJAN
Area Forecast Discussion National Weather Service Jackson MS 654 AM CDT Sat Jul 4 2020
UPDATE. Updated for 12Z aviation discussion
AVIATION. 12Z TAF discussion: Tried to maintain the current forecast with low clouds and fog lingering into mid morning. Kept vicinity activity for the late morning and prevailing showers-VCTS through the forecast period. MVFR to LIFR conditions are expected this afternoon when convection will be more widespread and visibilities are likely to be reduced by rain. Models/guidance continue to support showers and some thunderstorms from this afternoon into the evening. Fog and low clouds will be possible again tonight, Added MVFR conditions overnight for HBG/PIB.
DISCUSSION. Today and tonight. Hi-res hit the fog in the southwest. While dense fog is not widespread, a few locations in the highway 84 corridor had 1/4 mile visibility, so may need to issue a dense fog advisory. For now adding fog to zones to HWO. High clouds hung on for a good part of the area and it was a little warmer, especially along I-20 where stratus also developed. Much of the area was still near 80 and unlikely to cool off much more. Guidance temps across the area seemed good, will likely need to tweak hourly values to account for warmer conditions. Guidance held on to rain through the night, but not looking for much shower activity before mid to late morning. Guidance pops were good and models seem to agree widespread convection would develop across the area by the late afternoon. The upper level disturbance will continue to pull Gulf moisture into the region, keeping the area under a generally tropical airmass. Storm for the last few days have produced really good rainfall rates. For today, efficient rain producing storms will be more widespread, with more localized flooding possible. Surface analysis shows a stationary boundary draped across the southeast states, but trough axis seems to drive the convection expected to develop today. Models suggest activity will develop and slowly drift east through the evening before dissipating. However, there was activity moving out of Oklahoma and models don't have a great handle on the winds. Light northwest flow was expected for the western zones, so could see storms move into the MS River Delta region early with additional convection developing in the east by the afternoon. It's summer in the ARKLAMS, so a few strong to severe storms will be possible, but looking for mainly diurnal thunderstorms for today.
Sunday through Friday: After days of prolific convection/warming aloft in the light mid level northerly flow regime, ridging over the upper MS valley into the OH valley Sunday will allow a warm core low to pinch off over the region with PWs increasing to above 2". This deep tropical moisture will promote continued widespread diurnal convection, but also lingering nocturnal convection in subtle convergent areas near surface low pressure. These conditions along with the light flow aloft will favor heavy rainfall potential, but where these areas occur will depend on mesoscale processes at the time.
By Wednesday, ridging over the northern Gulf of Mexico and Southern Plains will shove the warm core system to the east, but the resulting northerly flow will still keep mostly diurnal convective chances high heading into the weekend. Though the deep tropical moisture will have shifted east, with surface dewpoints remaining in the mid 70s and temperatures creeping back into the 90s, heat indices at or above 105 look to become a problem again by Thursday and more so by the weekend./GG/
PRELIMINARY POINT TEMPS/POPS. Jackson 91 75 89 73 / 79 52 87 41 Meridian 91 74 89 73 / 71 49 85 47 Vicksburg 91 76 89 74 / 79 51 88 39 Hattiesburg 90 74 88 73 / 86 61 91 53 Natchez 89 74 87 72 / 71 55 91 47 Greenville 89 75 89 74 / 75 45 83 29 Greenwood 91 75 90 73 / 77 50 81 27
JAN WATCHES/WARNINGS/ADVISORIES. MS . None. LA . None. AR . None.
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Jackson, Jackson International Airport, MS||12 mi||76 min||Var 3||6.00 mi||Fog/Mist||77°F||73°F||90%||1012.7 hPa|
|Jackson, Hawkins Field Airport, MS||19 mi||77 min||NW 3||5.00 mi||Fog/Mist||76°F||73°F||94%||1012.5 hPa|
Link to 5 minute data for KJAN
Wind History from JAN (wind in knots)
|1 day ago||Calm||SW||W||W||E|
|2 days ago||SW||SW||SW||SW||NW||W||S||SE||S||SE||S||SW||S||NE|
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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 (8,2,3,4)(on/off)  Help
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