480
FOUS54 KMRX 181827
PFMMRX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE MORRISTOWN TN
227 PM EDT MON MAY 18 2026
TNZ017-190800-
TRI CITIES AIRPORT-SULLIVAN TN
36.50N 82.41W ELEV. 1536 FT
227 PM EDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 62 89 63 87 62
TEMP 89 84 71 65 62 65 79 85 88 84 72 67 63 65 79 85 83 78 69 65 62 64
DEWPT 63 65 60 58 57 59 63 61 60 63 60 58 57 59 63 64 65 66 65 64 62 63
RH 42 53 68 78 84 81 58 45 39 49 66 73 81 81 58 50 55 67 87 97100 97
WIND DIR SW S S SE SE SE W W W W S S N S W W W NW SW NE NE NE
WIND SPD 5 3 3 2 2 1 2 5 5 2 1 0 0 0 4 8 6 3 0 0 1 1
CLOUDS FW FW SC FW FW SC FW FW SC SC B1 B1 SC SC SC SC B1 B2 B1 B1 B2 B2
POP 12HR 0 0 0 40 60
QPF 12HR 0 0 0 0.05 0.04
RAIN SHWRS C C L L C C L
TSTMS C C S
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 82 61 80 61 81 61 83 62 83
TEMP 79 73 63 62 76 76 64 63 77 77 64 63 79 78 65 63 79 78
DEWPT 68 66 62 60 66 64 61 61 68 67 63 63 69 68 64 63 69 68
PWIND DIR NE E SE SE SW S SW SE SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B2 B2 B2 B2 B1 B2 B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1
POP 12HR 90 60 80 50 90 60 90 50 80
RAIN SHWRS L D L C L D C C L D L C L D C S C D
TSTMS S C S S C S S C S C S C
TNZ071-190800-
KNOXVILLE MCGHEE TYSON AIRPORT-BLOUNT TN
35.80N 83.98W ELEV. 979 FT
227 PM EDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 67 90 68 88 66
TEMP 90 85 75 71 69 69 81 87 89 85 75 72 69 70 82 87 84 78 72 69 68 67
DEWPT 63 64 63 60 59 60 63 62 60 62 62 59 59 61 65 67 68 69 68 65 65 65
RH 41 50 66 68 70 73 54 43 38 46 64 64 70 73 56 52 59 74 87 87 90 93
WIND DIR SW S S S W SW SW SW SW SW SW S S N W W W NW NE NE E NE
WIND SPD 11 5 3 3 3 1 5 6 9 5 3 2 1 0 5 6 6 3 1 1 1 1
CLOUDS SC FW FW FW SC SC FW SC B1 SC SC B2 B1 SC SC B1 B1 B2 B1 B1 B2 B2
POP 12HR 0 0 5 30 50
QPF 12HR 0 0 0 0.05 0.03
RAIN SHWRS C C C C S S C
TSTMS C C S
HEAT INDEX 90 87
MAX HEAT 92 82 87 90 81 90 90
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 84 66 83 66 83 66 84 66 85
TEMP 82 78 69 67 80 79 69 68 79 79 69 67 82 79 69 67 82 80
DEWPT 70 69 65 65 71 69 65 65 71 69 64 65 71 70 65 65 71 70
PWIND DIR N E SW SW SW S SW S SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B2 B1
POP 12HR 90 50 80 80 80 60 80 50 80
RAIN SHWRS C D C C L D D L L D L C C D C C L D
TSTMS S C S S C C S C S S C S C
TNZ036-190800-
OAK RIDGE-ANDERSON TN
36.00N 84.24W ELEV. 913 FT
227 PM EDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 66 88 65 86 64
TEMP 89 83 75 70 67 68 78 86 88 83 74 70 67 67 79 85 82 76 70 67 66 65
DEWPT 66 66 64 61 59 61 64 64 63 63 62 61 61 62 67 69 70 70 68 65 65 65
RH 47 57 69 73 75 78 62 48 43 51 66 73 81 84 67 59 67 82 93 93 97100
WIND DIR SW S S W SW SW SW SW SW SW SW SW SW SW SW SW W NW N N N NE
WIND SPD 9 4 2 2 2 2 5 6 6 3 2 1 1 1 3 5 4 2 1 1 1 2
CLOUDS SC SC SC FW SC SC SC SC B1 B1 SC B2 SC SC SC B1 B2 B2 B1 B1 B2 B2
POP 12HR 0 5 5 60 40
QPF 12HR 0 0 0 0.09 0.01
RAIN SHWRS C C L L C C S S C
TSTMS S C C S
HEAT INDEX 92 89 86
MAX HEAT 92 87 89 89 89
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 83 63 82 64 82 64 84 64 84
TEMP 81 76 67 65 78 77 68 66 78 77 67 66 81 78 68 66 82 79
DEWPT 70 70 65 65 72 70 65 65 71 70 64 65 72 71 65 65 72 71
PWIND DIR E E SW SW SW SW SW S SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B1
POP 12HR 80 50 90 80 80 60 70 50 70
RAIN SHWRS C D C C L D D L L D L C C L C C C L
TSTMS S C S S C C S C S S C S C
TNZ099-190800-
CHATTANOOGA AIRPORT-HAMILTON TN
35.03N 85.22W ELEV. 688 FT
227 PM EDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 68 89 68 88 66
TEMP 89 85 76 72 69 70 78 87 89 85 75 71 68 70 81 86 84 78 72 68 66 68
DEWPT 66 66 64 61 59 60 64 66 64 65 64 63 62 63 67 70 70 70 69 66 65 65
RH 47 53 66 68 70 71 62 50 44 51 69 76 81 78 63 59 63 76 90 93 97 90
WIND DIR S S S S S S S S S S S N N N SW SW W NW N N N N
WIND SPD 10 5 3 2 3 3 4 5 6 3 1 0 0 0 1 4 4 2 0 0 0 0
CLOUDS SC SC SC FW FW SC B1 B1 B1 SC SC SC SC B1 SC B1 B1 B1 B2 B1 B2 B2
POP 12HR 5 10 10 70 40
QPF 12HR 0 0 0 0.07 0.01
RAIN SHWRS C C L L C C S S C
TSTMS S C C S
HEAT INDEX 92 91 88
MAX HEAT 93 83 89 90 82 91 91
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 85 66 84 66 84 66 85 67 86
TEMP 82 78 69 68 80 79 69 68 80 79 69 68 83 80 69 68 83 81
DEWPT 70 70 66 65 71 69 65 65 71 70 66 65 71 71 66 65 71 70
PWIND DIR S SE S S S S SW W S
WIND CHAR LT LT GN LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B2 B1
POP 12HR 80 60 70 80 70 60 70 40 60
RAIN SHWRS C D C L C L D L L L L C C L C C C L
TSTMS S C C S S C C S C S S C S S C
NCZ060-190800-
TUSQUITEE RAWS-FORESTRY-CHEROKEE NC
35.07N 84.12W ELEV. 1600 FT
227 PM EDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 61 88 62 87 62
TEMP 87 81 69 65 62 63 77 85 86 79 69 64 63 64 79 85 82 76 68 64 62 64
DEWPT 61 62 60 59 58 59 62 58 57 61 59 58 57 59 64 66 65 66 65 63 61 62
RH 42 53 73 81 87 87 60 40 37 54 70 81 81 84 60 53 56 71 90 97 97 93
MAX/MIN RH 90 35 84 53 97
WIND DIR S S SE E E SE S S S S SE N N N W W W N N N N N
WIND DIR DEG 17 16 13 11 11 12 17 19 18 16 13 0 0 0 24 25 27 0 0 0 0 0
WIND SPD 8 4 3 3 2 1 1 3 4 2 1 0 0 0 1 2 2 0 0 0 0 0
CLOUDS FW FW FW FW SC FW SC B1 SC B1 SC B1 SC SC SC SC B1 B1 B1 B1 B2 B1
CLOUDS (%) 8 19 7 16 34 24 45 55 44 60 36 66 50 33 37 48 53 66 63 55 75 66
VSBY 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 60 40
QPF 12HR 0 0 0 0.03 0.01
RAIN SHWRS S S L L C C C
TSTMS S C C S
CHANCETHUNDER 0 0 0 40 20
MAX MIX HGT
AGL MIX HGT 5900 4900
MAX VENT RT 47300 24300
T WIND DIR S W
T WIND SPD 8 5
ADI 47 25
MAX LVORI 6 5
STABILITY A G G B B F G A B F F
CEILING NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE
STA PRES 28.06 28.08 28.14 28.09 28.06 28.04 28.07 28.02 28.00 27.98 28.00
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 84 61 81 62 82 62 84 62 84
TEMP 80 75 64 64 77 75 64 63 78 76 64 64 80 77 64 64 80 77
DEWPT 68 67 63 62 68 65 63 62 69 66 63 63 70 67 64 63 69 67
PWIND DIR SW SE S SE S SE S N S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B2 B1 B2 B1 B2 B2 B2 B2 B2 B1 B2 B1 B2 B1 B2 B1
POP 12HR 90 60 70 70 70 50 70 40 80
RAIN SHWRS C D L C C L L C C L C C C L C C C D
TSTMS S C C S C C S C S S C S S C
THIS IS AN EXPERIMENTAL PRODUCT FOR PLANNING AND REVIEW PURPOSES ONLY, AND IS
NOT TO BE SUBSTITUTED FOR AN OFFICIAL FIRE WEATHER SPOT FORECAST
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