927
FXUS64 KJAN 171735
AFDJAN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
1235 PM CDT TUE MAR 17 2026
..NEW AVIATION
KEY MESSAGES
- COOL CONDITIONS PERSIST ACROSS THE AREA TODAY.
- QUIET WEATHER PREVAILS FOR THE REMAINDER OF THE WEEK, WITH
WARMING TEMPERATURES EXPECTED.
MESOSCALE UPDATE
ISSUED AT 1021 AM CDT TUE MAR 17 2026
HIGH PRESSURE CONTINUES TO SETTLE INTO THE REGION TODAY UNDER
NORTHWEST FLOW ALOFT. COOL CONDITIONS WILL PERSIST THIS AFTERNOON
AS HIGHS PEAK IN THE LOW TO MIDDLE 50S. WINDS WILL BE NORTH
NORTHWESTERLY BETWEEN 5-10 MPH, AND WILL BE NOTICEABLY LESS GUSTY
THAN THOSE ON MONDAY, AS ONLY A FEW HIGHER GUSTS UP AROUND 15 MPH
ARE EXPECTED.
THE OVERALL FORECAST IS IN GOOD SHAPE. THE "FREEZE WARNING" FROM
LAST NIGHT AND THIS MORNING WAS ALLOWED TO EXPIRE AT 10 AM, AS
TEMPERATURES HAVE CLIMBED BACK ABOVE THE FREEZING MARK. OUTSIDE OF
SOME MINOR ADJUSTMENTS TO HOURLY ELEMENTS OF THE FORECAST TO ACCOUNT
FOR CURRENT TRENDS, AND TO REMOVE THE MENTION OF THE NOW EXPIRED
"FREEZE WARNING", NO FURTHER CHANGES WILL BE MADE ON THIS MORNING'S
UPDATE. /19/
DISCUSSION
ISSUED AT 315 AM CDT TUE MAR 17 2026
TODAY THROUGH NEXT TUESDAY...
NEAR TERM GUIDANCE FROM EARLY THIS MORNING SHOWS A 1028MB SFC HIGH
PRESSURE SYSTEM OVER THE ARKLATEX REGION TO THE GULF COAST AS A
STRONG MID/UPPER LEVEL LONGWAVE TROUGH CONTINUES TO PUSH EAST ACROSS
THE SOUTHEAST CONUS. THE COLD DRY AIRMASS LEFT IN THE WAKE OF
YESTERDAY'S COLD FRONTAL PASSAGE WILL LEAD TO COOL AND QUIET
CONDITIONS OVER OUR CWA THIS MORNING WITH MORNING LOWS IN THE MID TO
UPPER 20S AREAWIDE. AT THIS MOMENT, NO CHANGES HAVE BEEN MADE TO THE
FREEZE GRAPHIC AND THE "FREEZE WARNING" REMAINS IN EFFECT FOR OUR
ENTIRE FORECAST AREA, INCLUDING PORTIONS OF SOUTHEAST ARKANSAS AND
ALL OF OUR NORTHEAST LOUISIANA PARISHES, UNTIL 10 AM THIS MORNING.
HEADING INTO THE AFTERNOON, THE SFC HIGH WILL CONTINUE TO BUILD EAST
INTO AND THROUGH THE LOWER MISSISSIPPI VALLEY. THIS WILL ALLOW FOR
QUIET WEATHER CONDITIONS ACROSS OUR AREA WITH DAYTIME HIGHS PEAKING
INTO THE LOW TO MID 50S. CONDITIONS WILL REMAIN QUIET LATER TONIGHT
WITH MID TO HIGH CLOUDS BUILDING FROM THE WEST. A COUPLE OF AREAS
ALONG AND EAST OF I-55 COULD SEE OVERNIGHT LOWS DROP TO THE LOW 30S.
ELSEWHERE NIGHTTIME TEMPERATURES WILL DIP INTO THE UPPER 30S. A
LIGHT FROST/FREEZE WILL POSSIBLE BY LATE TUESDAY NIGHT/EARLY
WEDNESDAY MORNING TIMEFRAME ACROSS PORTIONS OF EAST MS.
TEMPERATURES WILL BEGIN TO REBOUND HEADING INTO THE MID-WEEK AS THE
SFC HIGH CONTINUES TO BUILD OVER THE SOUTHEAST CONUS. HEADING INTO
THE WEEKEND, AFTERNOON HIGHS WILL CLIMB INTO THE 80S ACROSS THE
AREA. LOWS WILL BE ABOVE NORMAL BY SATURDAY AND SUNDAY FOR THIS TIME
OF YEAR AS THEY STRUGGLE TO FALL OUT OF THE 50S. DRY CONDITIONS WILL
CONTINUE TO PREVAIL ACROSS OUR CWA BY EARLY NEXT WEEK. /CR/
AVIATION
(18Z TAFS)
ISSUED AT 1228 PM CDT TUE MAR 17 2026
VFR CONDITIONS WILL PREVAIL THROUGH THE FORECAST PERIOD. WINDS
WILL BE LIGHT AND NORTHERLY BEFORE SHIFTING SOUTHERLY AROUND 12Z.
WINDS AT SITES GWO/GLH WILL INCREASE AROUND 12-15Z TO AROUND 15KTS
WITH GUST OF NEAR 20KTS./KP/
PRELIMINARY POINT TEMPS/POPS
JACKSON 34 64 44 76 / 0 0 0 0
MERIDIAN 31 62 39 74 / 0 0 0 0
VICKSBURG 35 66 45 77 / 0 0 0 0
HATTIESBURG 34 64 41 76 / 0 0 0 0
NATCHEZ 35 67 45 76 / 0 0 0 0
GREENVILLE 38 65 46 76 / 0 0 0 0
GREENWOOD 35 65 46 76 / 10 0 0 0
JAN WATCHES/WARNINGS/ADVISORIES
MS...NONE.
LA...NONE.
AR...NONE.
19/CR/KP
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