385
FXUS64 KHUN 040758
AFDHUN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HUNTSVILLE AL
258 AM CDT SUN MAY 4 2025
..NEW NEAR TERM
NEAR TERM
(TODAY)
ISSUED AT 257 AM CDT SUN MAY 4 2025
LOW CLOUDS AND DENSE FOG HAS DEVELOPED THIS MORNING, MAINLY EAST
OF I-65 AND IN SOUTHERN MIDDLE TN. WITH LIGHT WIND AND A MOSTLY
CLEAR SKY, FOG SHOULD TEND TO DEVELOP IN NORTHWEST AL AS WELL. A
DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM. WATER VAPOR
IMAGERY DEPICTS AN UPPER LOW SPINNING OVER THE LOWER OH AND TN
VALLEYS. ANOTHER SPOKE OF VORTICITY WILL DROP SOUTHEAST AROUND THE
LOW INTO SOUTHERN TN AND NORTH AL THIS AFTERNOON. WITH COLD AIR
ALOFT, STEEP MID LEVEL LAPSE RATES WILL PRODUCE WIDESPREAD SC/CU
AND ISOLATED TO SCATTERED SHOWERS/THUNDERSTORMS THIS AFTERNOON.
COVERAGE WILL BE GREATEST IN TN AND LEAST IN AL. TEMPERATURES HAVE
DROPPED INTO THE UPPER 40S TO MIDDLE 50S THIS MORNING, A COOL
START TO A COOL DAY. HIGHS SHOULD ONLY REACH THE LOWER TO MIDDLE
60S FOR MOST VALLEY AREAS. A FEW UPPER 60S MAY BE REACHED SOUTH OF
THE TN RIVER, WHILE THE HIGHER CUMBERLAND PLATEAU AREAS WILL NOT
ESCAPE THE 50S.
SHORT TERM
(TONIGHT THROUGH TUESDAY)
ISSUED AT 1027 PM CDT SAT MAY 3 2025
CLOUD COVER WILL GRADUALLY LIFT BACK NORTH AS THE CENTER OF THE
LOW SHIFTS INTO THE CENTRAL APPALACHIANS, WITH MOSTLY CLEAR
CONDITIONS REDEVELOPING SUNDAY EVENING INTO SUNDAY NIGHT. THIS
SHOULD AGAIN CREATE AN ENVIRONMENT FAVORABLE FOR RADIATIONAL
COOLING (WITH LOWS IN THE MID/UPPER 40S) AND SOME PATCHY FOG AFTER
MIDNIGHT. AMPLE SUNSHINE ON MONDAY WILL ATTEMPT TO COUNTERACT THE
COOLER AIR MASS STILL IN PLACE FROM THE INFLUENCE OF THE
AFOREMENTIONED LOW. STILL, HIGHS WILL REMAIN ON THE COOL SIDE FOR
EARLY MAY AS TEMPERATURES WILL ONLY REACH THE UPPER 60S TO LOWER
70S. HIGH PRESSURE AT THE SURFACE WILL BRIEFLY BUILD BACK IN ON
TUESDAY, WITH PARTLY CLOUDY CONDITIONS AND SOUTHERLY FLOW ALLOWING
HIGHS TO WARM ANOTHER 8-10 DEGREES INTO THE MID TO UPPER 70S.
LONG TERM
(TUESDAY NIGHT THROUGH SATURDAY)
ISSUED AT 1027 PM CDT SAT MAY 3 2025
AN ACTIVE PATTERN RETURNS MID TO LATE WEEK AS A SLOW-MOVING AREA
OF LOW PRESSURE TRACKS FROM THE SOUTHERN PLAINS INTO THE OZARKS
AND MID-MISSISSIPPI VALLEY. A FEW SHORTWAVES WILL TRAVERSE THE
SOUTHERN AND EASTERN EDGE OF THIS FEATURE, WITH THE FIRST ONE
BRINGING MEDIUM/HIGH (60-80%) CHANCES FOR SHOWERS AND A FEW STORMS
TUESDAY NIGHT INTO WEDNESDAY. MEDIUM CHANCES (40-60%) FOR
SHOWERS/STORMS WILL REMAIN IN THE FORECAST EACH DAY FROM THURSDAY
THROUGH SATURDAY AS THE AFOREMENTIONED LOW GRADUALLY PROPAGATES
EASTWARDS ACROSS THE MID SOUTH AND EVENTUALLY INTO THE TENNESSEE
VALLEY. HIGHS WILL REMAIN IN THE MID/UPPER 70S EACH DAY, WITH LOWS
IN THE 50S.
AVIATION
(06Z TAFS)
ISSUED AT 1115 PM CDT SAT MAY 3 2025
AREAS OF LOW CEILINGS AND DENSE FOG HAVE DEVELOPED, ESPECIALLY IN
EASTERN PORTIONS OF NORTH AL. AT KHSV, HAVE FORECAST 3/4SM IN A
TEMPO PERIOD FROM 08-12Z, BUT AMENDMENTS MAY BE NECESSARY.
CEILINGS OF 020-025AGL (MVFR) WILL OVERSPREAD THE AREA BY 14-16Z,
LIFTING ABOVE 030AGL (VFR) BY 19-20Z. ISOLATED TO SCATTERED -SHRA
AND -TSRA WILL DEVELOP DURING THE MIDDAY TO EARLY AFTERNOON HOURS,
BUT WITH A LOW PROBABILITY, HAVE NOT INCLUDED AT EITHER KMSL OR
KHSV JUST YET.
HUN WATCHES/WARNINGS/ADVISORIES
AL...DENSE FOG ADVISORY UNTIL 9 AM CDT THIS MORNING FOR ALZ001>010-
016.
TN...DENSE FOG ADVISORY UNTIL 9 AM CDT THIS MORNING FOR TNZ076-096-
097.
NEAR TERM...17
SHORT TERM....AMP
LONG TERM....AMP
AVIATION...17
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page