101
FXUS64 KOHX 172336
AFDOHX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
636 PM CDT THU SEP 17 2026
..NEW AVIATION
KEY MESSAGES
UPDATED AT 632 PM CDT THU SEP 17 2026
- VERY HOT AND HUMID CONDITIONS WITH TRIPLE DIGIT HEAT INDICES
CONTINUE. A HEAT ADVISORY IS IN EFFECT THROUGH SATURDAY FOR
MOST OF MIDDLE TENNESSEE.
- NOT AS HOT NEXT WEEK, BUT OVERALL TEMPERATURES WILL STAY ABOVE-
NORMAL FOR THE FORESEEABLE FUTURE.
- LOW RAIN CHANCES MAINLY FOR THE PLATEAU THIS WEEKEND. LOW TO
MEDIUM RAIN CHANCES AREAWIDE EARLY TO MID NEXT WEEK.
SHORT TERM
(REST OF TODAY THROUGH FRIDAY)
ISSUED AT 1047 AM CDT THU SEP 17 2026
HEAT CONTINUES TO BE THE MAIN STORY OF THE FORECAST AS A VERY
STRONG 500MB HIGH MAKES JUST A SLIGHT MOVEMENT TO THE SOUTHWEST.
HIGHS TODAY WILL ONCE AGAIN APPROACH RECORD TERRITORY FOR
NASHVILLE (CURRENT RECORD: 99 SET IN 1896, TODAY'S FORECAST: 99).
A FEW SPOTS ACROSS MIDDLE TN COULD SURPASS 100 DEGREES THIS
AFTERNOON WITH HEAT INDICIES IN THE 105-108 RANGE. HIGHS WILL
CONTINUE TO RUN IN THE UPPER 90S INTO THE WEEKEND AS THE CENTER OF
THE RIDGE CONTINUES A GRADUAL SHIFT SOUTHWEST. VERY LOW CHANCE
FOR A POP UP SHOWER EACH DAY, BUT MOST SPOTS WILL REMAIN DRY
THROUGH THE WEEKEND. HEAT RISK LEVELS WILL REMAIN ELEVATED WITH
THE CONTINUED HEAT, SO BE SURE TO CHECK ON YOUR PEOPLE AND TAKE
PRECAUTIONS TO KEEP YOURSELF COOL AND HYDRATED. OVERNIGHT LOWS
WILL BE IN THE LOW TO MID 70S WEST OF THE PLATEAU WHERE 60S WILL
BE COMMON.
LONG TERM
(FRIDAY NIGHT THROUGH NEXT THURSDAY)
ISSUED AT 1047 AM CDT THU SEP 17 2026
THE HEAT ADVISORY CURRENTLY RUNS THROUGH 8 PM SATURDAY, THOUGH AN
EXTENSION INTO SUNDAY IS NOT OUT OF THE QUESTION WITH HIGHS
REMAINING IN THE UPPER 90S. THE RIDGE WILL CONTINUE PULLING BACK
WEST, OPENING THE DOOR FOR MORE WIDESPREAD RAIN CHANCES TO RE-
ENTER THE FORECAST NEXT WEEK. CHANCES ARE RANGING BETWEEN 30-50%
AREAWIDE. TEMPERATURES WILL COOL OFF INTO THE UPPER 80S, BUT WILL
STILL BE ABOVE NORMAL FOR THIS TIME OF YEAR.
AVIATION
(00Z TAFS)
ISSUED AT 632 PM CDT THU SEP 17 2026
ANOTHER ROUND OF FOG IS POSSIBLE LATE TONIGHT/EARLY TOMORROW
MORNING FOR SRB AND CSV. ELSEWHERE, CONDITIONS SHOULD REMAIN VFR
THROUGH THE NIGHT. TOMORROW WILL BRING SCATTERED LOW AND MID-LEVEL
CLOUDS WITH LIGHT NORTHERLY WINDS.
PRELIMINARY POINT TEMPS/POPS
NASHVILLE 75 98 75 97 / 0 10 0 10
CLARKSVILLE 73 98 72 98 / 0 10 0 10
CROSSVILLE 69 90 67 90 / 0 10 10 20
COLUMBIA 73 100 72 99 / 0 0 0 10
COOKEVILLE 71 93 70 93 / 0 20 10 10
JAMESTOWN 70 90 68 89 / 0 20 10 20
LAWRENCEBURG 72 97 72 97 / 0 0 0 10
MURFREESBORO 73 99 72 99 / 0 0 0 10
WAVERLY 74 98 74 98 / 0 0 0 0
OHX WATCHES/WARNINGS/ADVISORIES
HEAT ADVISORY UNTIL 8 PM CDT SATURDAY FOR TNZ005>010-023>033-
056>065-075-077-078-093>095.
SHORT TERM...BAGGETT
LONG TERM....BAGGETT
AVIATION.....CAHILL
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