855
FXUS64 KJAN 231740
AFDJAN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
1140 AM CST TUE DEC 23 2025
..NEW DISCUSSION
KEY MESSAGES
- DENSE FOG LIKELY ALONG AND SOUTH OF I-20 TOMORROW MORNING.
- TEMPERATURES WILL WARM TO ABOUT 10 TO 20 DEGREES ABOVE NORMAL
ACROSS THE AREA DURING THE CHRISTMAS HOLIDAY.
- COLD TEMPERATURES RETURN EARLY NEXT WEEK WITH SUBFREEZING
LOWS.
DISCUSSION
ISSUED AT 1138 AM CST TUE DEC 23 2025
TONIGHT...
THE SURFACE HIGH IS EXPECTED TO BUILD EASTWARD TODAY INTO TONIGHT,
WHILE SOUTHERLY SURFACE FLOW PERSISTS AND CONTINUES TO LOCK IN BL
MOISTURE. THE SURFACE HIGH WILL PROMOTE CLEAR SKIES AND CALM WINDS
OVERNIGHT TONIGHT. CONDITIONS WILL BE FAVORABLE FOR FOG DEVELOPMENT,
WITH PROBABILITIES AROUND 80% FOR VISIBILITIES QUARTER MILE OR LESS
ACROSS A LARGE SWATH OF THE AREA, MAINLY THE SOUTHERN HALF. A FOG
ADVISORY WILL LIKELY BE NEEDED FOR TOMORROW MORNING, ESPECIALLY IN
LIGHT OF HOLIDAY TRAVEL. GIVEN HIGH CONFIDENCE AND LIKELIHOOD OF
HIGHER IMPACTS DUE TO HOLIDAY TRAVEL, HAVE OPTED FOR AN ELEVATED
GRAPHIC IN ADVANCE.
TOMORROW THROUGH EARLY NEXT WEEK...
BROAD UPPER RIDGING OVER CENTRAL AND SOUTHERN CONUS WILL MAINTAIN
QUIET CONDITIONS THIS HOLIDAY WEEK, WITH MUCH ABOVE NORMAL, EVEN
NEAR RECORD, TEMPERATURES. HIGHS WILL GENERALLY BE IN THE 70S AND
LOWS GENERALLY IN THE UPPER 50S, BUT SOME SPOTS COULD PEAK AT 80
DEGREES BY FRI/SAT. THE 850 THERMAL RIDGE PEAKS SATURDAY AND THIS
SHOULD BE OUR BEST CHANCE FOR 80 DEGREES.
BY SUNDAY, UPPER SHORTWAVE/UPPER LOW AND ASSOCIATED SURFACE LOW OVER
THE GREAT LAKES REGION WILL DRAG A COLD FRONT ACROSS THE AREA,
THEREBY INCREASING RAIN CHANCES FOR SUNDAY INTO SUNDAY NIGHT.
THUNDERSTORMS ARE UNLIKELY GIVEN THE LACK OF INSTABILITY, HOWEVER
THE PRESSURE GRADIENT TIGHTENS WITH THE FRONT, SO EXPECT SOME GUSTY
WINDS SUNDAY NIGHT INTO MONDAY MORNING. WILL HAVE TO WATCH HOW THIS
EVOLVES AS A LIMITED GRAPHIC MAY EVENTUALLY BE NEEDED DOWN THE LINE.
THE WIND AND LINGERING RAIN SHOULD KEEP MUCH OF THE AREA ABOVE
FREEZING SUNDAY NIGHT.
WINTER RETURNS EARLY NEXT WEEK AS A CANADIAN SURFACE HIGH PROPAGATES
TOWARDS THE REGION IN THE WAKE OF THE COLD FRONT. HARD FREEZING
TEMPERATURES APPEAR LIKELY WITH LOWS IN THE 20S AREAWIDE MONDAY
NIGHT AND ANOTHER COLD NIGHT ON TAP FOR TUESDAY NIGHT. DESPITE THIS,
THE CORE OF THE COLD LOOKS TO MISS OUR AREA, AND SO DANGEROUS COLD
IS NOT EXPECTED./SAS/
AVIATION
(12Z TAFS)
ISSUED AT 528 AM CST TUE DEC 23 2025
CLOUDS, ALONG WITH PATCHY FOG (SOME DENSE ACROSS SOUTHWEST MISSISSIPPI),
WILL CONTINUE TO RESULT IN FLIGHT CATEGORIES RANGING FROM VFR/IFR
THROUGH AT LEAST 16Z TODAY. WHILE FOG WILL ERODE AFTER SUNRISE,
HIGH PRESSURE BUILDING INTO THE REGION FROM THE EAST TODAY, WILL
RESULT IN CLOUDS ERODING WHILE LIFTING NORTH OF THE REGION. THIS
WILL ALLOW FLIGHT CATEGORIES TO IMPROVE TO VFR LEVELS AREAWIDE
DURING THE EARLY AFTERNOON HOURS. HOWEVER COME EARLY WEDNESDAY
MORNING, BOTH LOW STRATUS AND PATCHY FOG WILL AGAIN BE POSSIBLE
ACROSS THE AREA, ESPECIALLY AT KHEZ, KPIB, & KHBG. THUS AGAIN
REDUCING FLIGHT CATEGORIES TO A MIX OF VFR/IFR CATEGORIES ACROSS
THE AREA. WINDS BY LATE THIS MORNING WILL BECOME SUSTAINED FROM
THE WEST SOUTHWEST BETWEEN 5-10 KNOTS, AND WILL PERSIST THROUGH
THE AFTERNOON. /19/
PRELIMINARY POINT TEMPS/POPS
JACKSON 55 76 56 76 / 0 0 0 0
MERIDIAN 53 76 53 76 / 0 0 0 0
VICKSBURG 56 77 56 76 / 0 0 0 0
HATTIESBURG 56 76 53 76 / 0 0 10 0
NATCHEZ 57 77 56 76 / 0 0 0 0
GREENVILLE 58 74 58 75 / 0 0 0 0
GREENWOOD 57 75 58 76 / 0 0 0 0
JAN WATCHES/WARNINGS/ADVISORIES
MS...NONE.
LA...NONE.
AR...NONE.
SAS20/SAS20/19
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