887
FNUS74 KMRX 231226
FWSMRX
SPOT FORECAST FOR SEVEN ISLANDS UNIT 17...TDEC
NATIONAL WEATHER SERVICE MORRISTOWN TN
826 AM EDT THU OCT 23 2025
FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON OCTOBER 23.
IF CONDITIONS BECOME UNREPRESENTATIVE,CONTACT THE NATIONAL WEATHER
SERVICE...AT 1-800-697-0075. IF POSSIBLE, PLEASE PROVIDE FEEDBACK
FOR EVERY SPOT FORECAST REQUEST.
DISCUSSION
DRY AND COOL CONDITIONS WILL PERSIST FOR THE REMAINDER OF THE
WORK WEEK. PROBABILITY OF A FREEZE FOR A FEW LOCATIONS ALONG THE
NORTHERN PLATEAU TO NORTHEASTERN TN INTO VA IS INCREASING FOR
FRIDAY MORNING. A COUPLE OF DISTURBANCES ARE EXPECTED TO BRING
RAIN OVER THE NEXT WEEK, FIRST LATE ON SUNDAY INTO MONDAY, SECOND
MIDWEEK NEXT WEEK.
REST OF TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........31 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 10 MPH IN THE
LATE MORNING AND AFTERNOON, THEN SHIFTING TO
THE NORTHWEST AROUND 6 MPH LATE IN THE
AFTERNOON.
MIXING HEIGHT.......6200 FT AGL.
TRANSPORT WINDS.....WEST 6 TO 14 MPH SHIFTING TO THE NORTHWEST
AROUND 8 MPH LATE IN THE AFTERNOON.
RAINFALL AMOUNT.....0.00 INCHES.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM
SKY (%).........8 14 18 14 21 22 14 12 12 10 11
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............43 51 57 61 65 67 67 69 67 66 63
RH..............73 52 42 38 33 32 32 31 33 34 38
20 FT WIND DIR..SW SW W W W W W W W W NW
20 FT WIND SPD..3 4 5 6 8 9 10 10 9 8 6
20 FT WIND GUST.6 7 10 10 12 13 14 14 14 13 10
MIX HGT (KFT)...0.5 1.1 2.1 3.3 4.8 5.6 6.0 6.2 5.8 1.4 0.7
TRANSP WIND DIR.SW SW W W W W W W W NW NW
TRANSP WIND SPD.6 7 12 14 18 18 17 17 15 10 8
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). PATCHY FROST
EARLY IN THE MORNING.
MIN TEMPERATURE.....AROUND 36.
MAX HUMIDITY........96 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 TO 7 MPH SHIFTING TO THE SOUTHEAST
AROUND 3 MPH OVERNIGHT, THEN SHIFTING TO THE
EAST 2 TO 3 MPH AFTER 3 AM.
RAINFALL AMOUNT.....0.00 INCHES.
TIME (EDT) 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM
SKY (%).........12 6 5 6 7 9 4 8 11 12 19 23
WEATHER COV..... PTY
WEATHER TYPE.... FST
TSTM COV........
TEMP............56 52 50 48 46 45 44 42 41 38 38 37
RH..............49 56 58 63 71 73 79 82 82 92 89 92
20 FT WIND DIR..NW NW NW W W SW SW SW S S S NE
20 FT WIND SPD..4 3 2 2 2 1 1 1 1 1 1 1
20 FT WIND GUST.8 7 6 5 4 2 2 2 2 2 2 2
MIX HGT (KFT)...0.6 0.6 0.6 0.6 0.6 0.5 0.6 0.5 0.6 0.5 0.5 0.5
TRANSP WIND DIR.NW NW NW NW NW NW NW NW SE E E E
TRANSP WIND SPD.7 5 6 5 6 5 5 5 3 2 3 3
FORECASTER...KYLE SNOWDIN
REQUESTED BY...SAM KING
TYPE OF REQUEST...PRESCRIBED
.TAG 2524304.0/MRX
.DELDT 10/23/25
.FORMATTERVERSION 2.0.0
.EMAIL SAM.KING@TN.GOV
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