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

KIAD - Washington/Dulles In, VA, US

Updated at: 0212 UTC 12 May 2021
Latest TAF at: 2320 UTC 11 May 2021

TAF Board

Time0152Z 12/03Z 12/04Z 12/05Z 12/06Z 12/07Z 12/08Z 12/09Z 12/10Z 12/11Z 12/12Z 12/13Z 12/14Z 12/15Z>>
Type OBS PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL
VIS 10 >6 >6 >6 >6 >6 >6 >6 >6 >6 >6 >6 >6 >6
CIG 100 80 80 80 -- -- -- -- -- 250 250 -- -- --
Cover BKN BKN BKN BKN SCT SCT SCT SCT SCT BKN BKN SCT SCT SCT
FltCat VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
WX -- -- -- -- -- -- -- -- -- -- -- -- -- --
WDir 320 320 320 320 340 340 340 340 300 310 310 330 330 330
WSpd 7 6 6 6 5 5 5 5 5 5 5 9 9 9
WGst -- -- -- -- -- -- -- -- -- -- -- -- -- --

TDA Impact Legend

  None Marginal Slight Moderate High
Visibility (sm) >5 3≤X≤5 1≤X<3 0.5≤X<1 <0.5
Ceiling (100 ft) >30 10≤X≤30 4≤X<10 2≤X<4 <2
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
KIAD 112320Z 1200/1306 32006KT P6SM SCT060 BKN080
  FM120600 34005KT P6SM FEW150 SCT250
  FM121000 30005KT P6SM FEW150 SCT250
  FM121100 31005KT P6SM SCT150 BKN250
  FM121300 33009KT P6SM FEW150 SCT250
  FM130000 VRB03KT P6SM FEW250


METAR
KIAD 120152Z 32007KT 10SM BKN100 14/01 A3016 RMK AO2 SLP211 T01390011
KIAD 120052Z 32009KT 10SM BKN100 BKN160 16/01 A3012 RMK AO2 SLP199 T01560011
KIAD 112352Z 31012KT 10SM BKN100 BKN160 16/03 A3011 RMK AO2 SLP194 T01610028 10194 20161 53012
KIAD 112252Z 32012KT 10SM SCT070 BKN120 18/04 A3008 RMK AO2 SLP186 T01780044

Radar Display
Forecast Discussion