346
FXUS64 KMRX 100516 AAA
AFDMRX
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE MORRISTOWN TN
116 AM EDT SAT OCT 10 2026
..NEW AVIATION
KEY MESSAGES
UPDATED AT 113 AM EDT SAT OCT 10 2026
- THE REMNANTS OF HURRICANE ISAIAS WILL IMPACT THE REGION TONIGHT
THROUGH SUNDAY.
- GUSTY WINDS ARE LIKELY TONIGHT THROUGH EARLY SUNDAY MORNING.
HIGH WINDS ARE LIKELY OVER THE EASTERN TENNESSEE MOUNTAINS AND
FOOTHILLS, AND PORTIONS OF SOUTHEAST TENNESSEE.
- HEAVY RAIN IS POSSIBLE FOR THE SOUTHERN PLATEAU, SOUTHEAST
TENNESSEE, AND SOUTHWEST NORTH CAROLINA THIS WEEKEND.
DISCUSSION
ISSUED AT 148 PM EDT FRI OCT 9 2026
THE BIG STORY CONTINUES TO BE THE IMPACTS FROM THE REMNANTS OF
HURRICANE ISAIAS FOR THIS WEEKEND. RAIN AND WIND WILL BEGIN TO RAMP
UP OVERNIGHT TONIGHT. HIGH WINDS ARE LIKELY BY DAYBREAK IN THE
MOUNTAINS AND FOOTHILLS. WHILE THE LOW OF THE STORM TRACKS THROUGH
MIDDLE TN THE IMPACTS WILL EXPAND FAR FROM THE CENTER OF THE SYSTEM.
BOTTOM LINE: IT'S GOING TO BE A WET AND WINDY WEEKEND FOR THE
TENNESSEE VALLEY, SO MAKE SURE YOU'RE WEATHER AWARE AND PREPARED!
HERE ARE THE MORE SPECIFIC IMPACTS FROM THE REMNANTS OF HURRICANE
ISAIAS FOR SATURDAY AND SUNDAY:
HEAVY RAIN POTENTIAL: SOME TROPICAL BANDS OF HEAVY RAIN MAY MOVE
ACROSS THE PLATEAU (ESPECIALLY SOUTHERN), SOUTHEAST TENNESSEE, AND
SOUTHWEST NORTH CAROLINA. UPSLOPE FLOW INTO THE PLATEAU WILL AID
WITH THE LIFT AND POTENTIAL BANDING PRECIPITATION ON SATURDAY.
RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE. AGAIN, DOWNSLOPE
WINDS WILL LIMIT QPF AMOUNTS OVER THE NORTHERN AND CENTRAL VALLEY.
A FLOOD WATCH REMAINS IN EFFECT FOR PARTS OF SOUTHEAST TENNESSEE AND
SOUTHWEST NORTH CAROLINA.
HIGH WINDS POTENTIAL: INCREASED CONFIDENCE FOR GUSTY WINDS THIS
WEEKEND. HIGH WIND WARNING ISSUED FOR MOUNTAINS, FOOTHILLS. WIND
ADVISORY ISSUED ELSEWHERE. STRONG GUSTY WINDS ARE LIKELY!
THE MAIN CORRIDOR OF HIGH WINDS WILL BE ALONG THE EASTERN TN
MOUNTAINS AND FOOTHILLS. THE HI-RES SUITE CONTINUES TO DEPICT THE
POTENTIAL OF HIGH WINDS WITH PEAK GUSTS UP TO 70 MPH IN THE
MOUNTAINS ON SATURDAY. THE TIGHT PRESSURE GRADIENT FROM THE WEDGE
OVER THE CAROLINAS AND ISAIAS LOW PRESSURE WILL PRODUCE STRONG
WINDS. MOUNTAIN WAVE HIGH WINDS LOOK LIKELY FOR THE FAR EAST
TENNESSEE MOUNTAINS AND FOOTHILLS. A HIGH WIND WARNING GOES INTO
EFFECT TONIGHT THROUGH SUNDAY MORNING TO ADDRESS THE POTENTIAL HIGH
WINDS. WE DID EXPAND THE HIGH WIND WARNING TO INCLUDE WASHINGTON AND
RUSSELL COUNTIES IN SW VA. I HAVE ADJUSTED THE HIGH WIND WARNING AND
WIND ADVISORY START TIME TO BEGIN AT MIDNIGHT EDT/11PM CDT AS WINDS
ARE EXPECTED TO RAMP UP QUICKLY.
FOR CHATTANOOGA AREA, THE THREAT OF GUSTS IN EXCESS OF 60
MPH HAS DIMINISHED SOME, HOWEVER, GUSTS OF 50-60 MPH REMAIN
POSSIBLE, ESPECIALLY LOOKOUT AND SIGNAL MOUNTAINS.
FOR THE REST OF EAST TENNESSEE, SOUTHWEST VIRGINIA, AND SOUTHWEST
NORTH CAROLINA: SURFACE WINDS OF 15 TO 30 MPH WITH GUSTS UP TO 50
MPH ARE POSSIBLE SATURDAY AND SUNDAY. WE HAVE OPTED TO ISSUE WIND
ADVISORIES TO ADDRESS THE STRONG GUSTY WINDS.
SEVERE THUNDERSTORM POTENTIAL: THE POTENTIAL FOR SEVERE WEATHER
LOOKS QUITE LIMITED. INSTABILITY IS LOW AND MAINLY ELEVATED
ESPECIALLY FOR SATURDAY AND SATURDAY NIGHT AS THE WARM SECTOR
REMAINS TO OUR SOUTH AND EAST. A FEW RUMBLES OF THUNDER CANT BE
RULED OUT BUT SEVERE WEATHER IS NOT EXPECTED.
LOOKING AHEAD TO NEXT WEEK, WE WILL SEE THE RETURN OF UPPER LEVEL
RIDGE AS IT BUILDS INTO THE REGION AT THE START OF THE WEEK. THIS
WILL RETURN A PROLONGED STRETCH OF DRY, MOSTLY SUNNY WEATHER FOR
MUCH OF NEXT WEEK. HIGH TEMPERATURES WILL RUN 5 TO 10 DEGREES ABOVE
NORMAL.
AVIATION
(06Z TAFS)
ISSUED AT 113 AM EDT SAT OCT 10 2026
THE OUTER EDGE OF RAIN FROM ISAIAS WILL BE SPREADING INTO CHA IN
THE NEXT HOUR OR TWO, BUT WITH VFR VIS/CIG. AS RAIN INTENSIFIES
TOWARD SUNRISE, VIS/CIG WILL DROP TO MVFR AND LIKELY STAY THERE
THROUGH THE DAY. AT TYS AND TRI, DOWNSLOPE WINDS OFF THE MOUNTAINS
WILL KEEP VIS/CIG MAINLY VFR, WITH A HEAVIER SHOWER LOWERING VIS
TO MVFR ON OCCASSION. RAIN COVERAGE WILL BECOME MORE SCATTERED IN
THE AFTERNOON AND EVENING. WINDS WILL INCREASE OVERNIGHT AND EARLY
MORNING, WITH SOME LLWS DEVELOPING. SURFACE WINDS BECOME GUSTY
FROM THE E-NE DURING THE DAY, AROUND 30 KT EXPECTED, THEN DECREASE
TOWARD EVENING.
PRELIMINARY POINT TEMPS/POPS
CHATTANOOGA AIRPORT, TN 72 62 73 59 / 100 90 30 0
KNOXVILLE MCGHEE TYSON AIRPORT, TN 74 64 73 61 / 90 90 60 20
OAK RIDGE, TN 71 62 71 60 / 100 90 70 10
TRI CITIES AIRPORT, TN 68 62 76 60 / 90 90 90 60
MRX WATCHES/WARNINGS/ADVISORIES
NC...HIGH WIND WARNING UNTIL 8 AM EDT SUNDAY FOR CHEROKEE-CLAY.
FLOOD WATCH THROUGH SUNDAY MORNING FOR CHEROKEE-CLAY.
TN...HIGH WIND WARNING UNTIL 8 AM EDT SUNDAY FOR BLOUNT SMOKY
MOUNTAINS-COCKE SMOKY MOUNTAINS-EAST POLK-JOHNSON-SEVIER
SMOKY MOUNTAINS-SOUTHEAST CARTER-SOUTHEAST GREENE-SOUTHEAST
MONROE-UNICOI.
FLOOD WATCH THROUGH SUNDAY MORNING FOR BLEDSOE-BRADLEY-EAST POLK-
HAMILTON-MARION-MEIGS-RHEA-SEQUATCHIE-WEST POLK.
WIND ADVISORY UNTIL 8 AM EDT /7 AM CDT/ SUNDAY FOR ANDERSON-
BLEDSOE-BRADLEY-CAMPBELL-CLAIBORNE-GRAINGER-HAMBLEN-
HAMILTON-HANCOCK-HAWKINS-JEFFERSON-KNOX-LOUDON-MARION-
MCMINN-MEIGS-MORGAN-NORTH SEVIER-NORTHWEST BLOUNT-NORTHWEST
CARTER-NORTHWEST COCKE-NORTHWEST GREENE-NORTHWEST MONROE-
RHEA-ROANE-SCOTT TN-SEQUATCHIE-SULLIVAN-UNION-WASHINGTON TN-
WEST POLK.
VA...HIGH WIND WARNING UNTIL 8 AM EDT SUNDAY FOR RUSSELL-WASHINGTON
VA.
WIND ADVISORY UNTIL 8 AM EDT SUNDAY FOR LEE-SCOTT VA-WISE.
DISCUSSION...BH
AVIATION...DGS
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