TFM - Tactical Decision Aid
ID: Runway Winds: CIG/VIS Threshold:

KCHA - Chattanooga Metro, TN, US

Updated at: 0638 UTC 18 Sep 2021
Latest TAF at: 0520 UTC 18 Sep 2021

TAF Board

Time0622Z 18/07Z 18/08Z 18/09Z 18/10Z 18/11Z 18/12Z 18/13Z 18/14Z 18/15Z 18/16Z 18/17Z 18/18Z 18/19Z>>
Type OBS PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL
VIS 10 >6 >6 >6 4 4 >6 >6 4 4 4 4 4 >6
CIG -- 50 50 50 25 25 30 30 15 15 15 15 15 30
Cover FEW BKN BKN BKN OVC OVC OVC OVC OVC OVC OVC OVC OVC OVC
FltCat VFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR
WX -- -- -- -- BR BR VCSH VCSH RA BR RA BR RA BR RA BR RA BR VCSH
WDir VRB VRB VRB VRB VRB VRB VRB VRB VRB VRB VRB VRB VRB VRB
WSpd 0 3 3 3 0 0 0 0 0 0 0 0 0 0
WGst -- -- -- -- -- -- -- -- -- -- -- -- -- --

TDA Impact Legend

  None Marginal Slight Moderate High
Visibility (sm) >5 2.9≤X≤5 0.9≤X<2.9 <0.9
Ceiling (100 ft) >30 9.9≤X≤30 4.9≤X<9.9 <4.9
Wind Speed (kt) <15 15≤X<25 25≤X<30 ≥30
Wind Gust (kt) <15 15≤X<25 25≤X<35 ≥35
Weather No Wx Reported VCTS -TS,-FZRA TS,FZRA +TS,+FZRA
TAF
KCHA 180520Z 1806/1906 VRB03KT P6SM BKN050
  FM181000 00000KT 4SM BR OVC025
  FM181200 00000KT P6SM VCSH OVC030
  FM181400 00000KT 4SM RA BR OVC015
  FM181900 00000KT P6SM VCSH OVC030
  FM190200 00000KT 4SM BR OVC030


METAR
KCHA 180622Z 00000KT 10SM FEW029 24/21 A3012 RMK AO2 T02390211
KCHA 180553Z 00000KT 10SM BKN026 OVC033 24/22 A3013 RMK AO2 SLP195 T02390217 10267 20228 50000
KCHA 180534Z 00000KT 10SM BKN023 BKN075 24/22 A3013 RMK AO2 T02390217
KCHA 180453Z 00000KT 10SM BKN070 23/22 A3013 RMK AO2 SLP196 T02330217 402780206
KCHA 180353Z 00000KT 10SM SCT050 BKN250 23/21 A3014 RMK AO2 SLP198 LAST T02280211

Radar Display
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