584
FXUS64 KJAN 170809
AFDJAN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
309 AM CDT TUE MAR 17 2026
..NEW DISCUSSION
KEY MESSAGES
- MUCH COLDER AIR OVER THE REGION BRINGS THE THREAT FOR A
SIGNIFICANT HARD FREEZE TONIGHT.
DISCUSSION
ISSUED AT 309 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
(06Z TAFS)
ISSUED AT 1217 AM CDT TUE MAR 17 2026
VFR CONDITIONS WILL PREVAIL ACROSS ALL TAF SITES THROUGH THE
PERIOD. /CR/
PRELIMINARY POINT TEMPS/POPS
JACKSON 52 34 64 44 / 0 0 0 0
MERIDIAN 52 31 62 39 / 0 0 0 0
VICKSBURG 53 35 66 45 / 0 0 0 0
HATTIESBURG 55 34 64 41 / 0 0 0 0
NATCHEZ 55 35 67 45 / 0 0 0 0
GREENVILLE 50 38 65 46 / 0 0 0 0
GREENWOOD 51 35 65 46 / 0 10 0 0
JAN WATCHES/WARNINGS/ADVISORIES
MS...FREEZE WARNING UNTIL 10 AM CDT THIS MORNING FOR MSZ018-019-
025>066-072>074.
LA...FREEZE WARNING UNTIL 10 AM CDT THIS MORNING FOR LAZ007>009-015-
016-023>026.
AR...FREEZE WARNING UNTIL 10 AM CDT THIS MORNING FOR ARZ074-075.
CR/CR/CR
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