227
FXUS64 KOHX 291712
AFDOHX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
1212 PM CDT MON JUN 29 2026
..NEW AVIATION
KEY MESSAGES
UPDATED AT 1210 PM CDT MON JUN 29 2026
- DANGEROUS HEAT AND HUMIDITY TODAY THROUGH LATE THIS WEEK (AND
POSSIBLY INTO THE WEEKEND). AN EXTREME HEAT WARNING IS IN EFFECT
THROUGH THURSDAY FOR MUCH OF THE AREA.
- HIGH TEMPERATURES IN THE MID TO UPPER 90S ACROSS THE WARNING
AREA, WITH AFTERNOON HEAT INDEX VALUES AS HOT AS 112. OVERNIGHT
LOWS WILL ALSO REMAIN UNCOMFORTABLY WARM, ONLY FALLING INTO THE
MID TO UPPER 70S MOST AREAS.
- LOW CHANCES FOR RAIN AND STORMS WILL EMERGE LATER IN THE WEEK.
SHORT TERM
(REST OF TODAY THROUGH TUESDAY)
ISSUED AT 1158 AM CDT MON JUN 29 2026
AN UPPER LEVEL RIDGE HAS CENTERED ITSELF OVER MIDDLE TN AND WILL
AMPLIFY OVER THE NEXT FEW DAYS. THIS WILL BRING AN EXTENDED
PERIOD OF DANGEROUSLY HOT CONDITIONS AT LEAST THROUGH FRIDAY.
HIGHS TODAY WILL REACH THE MID TO UPPER 90S FOR MUCH OF THE AREA.
ONCE YOU FACTOR IN DEW POINTS IN THE LOW TO MID 70S IT WILL FEEL
AS WARM AS 108 THIS AFTERNOON. LOWS TONIGHT WILL REMAIN WARM ONLY
FALLING INTO THE MID TO UPPER 70S, THIS WILL LIMIT RELIEF FROM
THE HEAT ESPECIALLY TO THOSE THAT DO NOT HAVE AIR CONDITIONING.
AS THE HEAT LINGERS AND BUILDS OVER THE AREA WE WILL SEE EXTREME
HEAT RISK TUESDAY LASTING THROUGH THE REMAINDER OF THE WEEK.
EXTREME HEAT RISK MEANS THAT THERE IS RARE AND OR LONG DURATION
EXTREME HEAT WITH LITTLE TO NO OVERNIGHT RELIEF AFFECTING ANYONE
WITHOUT COOLING/HYDRATION AS WELL AS HEALTH SYSTEMS, INDUSTRIES,
AND INFRASTRUCTURE. HIGHS TUESDAY WILL PUSH INTO THE MID TO UPPER
90S AND IT WILL REMAIN VERY HUMID PUSHING AFTERNOON HEAT INDEX
VALUES AS HOT AS 108.
LONG TERM
(TUESDAY NIGHT THROUGH NEXT MONDAY)
ISSUED AT 1158 AM CDT MON JUN 29 2026
THE UPPER LEVEL RIDGE WILL BE CENTERED OVER MIDDLE TN ON WEDNESDAY
AND THIS WILL LIKELY BE THE PEAK OF THE HEAT WAVE WITH HIGHS IN
THE MID 90S TO RIGHT AROUND 100. AFTERNOON HEAT INDEX VALUES WILL
GET AS WARM AS 112. OVERNIGHT LOWS TUESDAY NIGHT THROUGH WEDNESDAY
NIGHT WILL BE VERY WARM IN THE MID TO UPPER 70S WITH SOME AREAS
POSSIBLY STAYING IN THE LOWER 80S. THE UPPER LEVEL RIDGE WILL
START TO DRIFT TO THE EAST MID TO LATE WEEK AND WILL SLOWLY START
TO FLATTEN. THE COOLING WILL BE VERY LIMITED WITH HIGHS STAYING
IN THE MID TO UPPER 90S THROUGH FRIDAY AND VERY HOT HEAT INDEX
VALUES. IT LOOKS LIKE WE WILL SEE SOME COOLING OVER THE JULY 4TH
WEEKEND BUT NOT A TON, IT WILL STILL BE VERY HOT AND YOU SHOULD
PLAN FOR THE HEAT IF YOU HAVE OUTDOOR PLANS. HIGHS OVER THE
WEEKEND WILL REMAIN IN THE LOW TO MID 90S WITH HEAT INDEX VALUES
AS WARM AS 107. ADDITIONAL COOLING IS EXPECTED MONDAY AS A SHORT
WAVE TROUGH PUSHES INTO THE GREAT LAKES. THIS WILL CONTINUE TO
FLATTEN THE RIDGE AND DROP OUR HIGHS BACK INTO THE UPPER 80S TO
LOWER 90S. AS THE RIDGE PUSHES EAST LATE WEEK WE WILL SEE LOW
CHANCES FOR POPUP SHOWERS AND THUNDERSTORMS MAINLY DURING THE
AFTERNOONS AND EARLY EVENINGS. THESE LOW THUNDERSTORM CHANCES LOOK
TO CONTINUE INTO THE HOLIDAY WEEKEND.
AVIATION
(18Z TAFS)
ISSUED AT 1210 PM CDT MON JUN 29 2026
VFR CONDITIONS THROUGH THE TAF PERIOD WITH WINDS BECOMING LIGHT
AND VARIABLE OVERNIGHT. SOME PATCHY FOG IS POSSIBLE ONCE AGAIN
OVER THE PLATEAU (SRB/CSV) TONIGHT.
PRELIMINARY POINT TEMPS/POPS
NASHVILLE 78 99 79 99 / 0 0 0 10
CLARKSVILLE 75 97 76 98 / 0 0 0 10
CROSSVILLE 71 91 72 92 / 0 10 0 20
COLUMBIA 75 99 77 99 / 0 0 0 20
COOKEVILLE 73 92 74 93 / 0 0 0 10
JAMESTOWN 71 91 71 93 / 0 0 0 10
LAWRENCEBURG 75 96 76 96 / 0 0 0 20
MURFREESBORO 76 99 77 100 / 0 0 0 10
WAVERLY 75 97 76 98 / 0 0 0 20
OHX WATCHES/WARNINGS/ADVISORIES
EXTREME HEAT WARNING UNTIL 8 PM CDT THURSDAY FOR TNZ005>010-
023>032-056>064-075-093>095.
HEAT ADVISORY FROM 10 AM TUESDAY TO 8 PM CDT THURSDAY FOR TNZ011-
033-034-065-066-077>080.
SHORT TERM...MUELLER
LONG TERM....MUELLER
AVIATION.....CRAVENS
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