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

KIAD - Washington/Dulles In, VA, US

Updated at: 1602 UTC 26 Apr 2019
Latest TAF at: 1447 UTC 26 Apr 2019

TAF Board

Time1552Z 26/17Z 26/18Z 26/19Z 26/20Z 26/21Z 26/22Z 26/23Z 27/00Z 27/01Z 27/02Z 27/03Z 27/04Z 27/05Z>>
Type OBS PRVL PRVL
  [TEMP]  
PRVL
  [TEMP]  
PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL PRVL
VIS 10 >6 5
  [3]  
5
  [3]  
5 >6 >6 >6 >6 >6 >6 >6 >6 >6
CIG 35 60 35
  [30]  
35
  [30]  
35 60 60 60 60 60 60 60 70 70
Cover BKN OVC OVC
  [OVC]  
OVC
  [OVC]  
OVC OVC OVC OVC OVC OVC OVC OVC BKN BKN
FltCat VFR VFR MVFR
  [MVFR]  
MVFR
  [MVFR]  
MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
WX -- -SHRA SHRA VCTS
  [TSRA BR]  
SHRA VCTS
  [TSRA BR]  
SHRA VCTS -SHRA -SHRA -SHRA -- -- -- -- -- --
WDir 190 170 190
[VRB]
190
[VRB]
190 280 280 280 310 310 310 310 300 300
WSpd 15 10 16
  [20]  
16
  [20]  
16 16 16 16 17 17 17 17 14 14
WGst 27 -- 25
  [35]  
25
  [35]  
25 34 34 34 27 27 27 27 21 21

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 261447Z 2615/2718 17010KT P6SM -SHRA OVC060
  FM261800 19016G25KT 5SM SHRA VCTS OVC035CB
  TEMPO 2618/2620 VRB20G35KT 3SM TSRA BR OVC030CB
  FM262100 28016G34KT P6SM -SHRA OVC060
  FM270000 31017G27KT P6SM OVC060
  FM270400 30014G21KT P6SM BKN070
  FM271300 29017G32KT P6SM SKC


METAR
KIAD 261552Z 19015G27KT 10SM BKN035 BKN048 BKN100 BKN250 21/14 A2947 RMK AO2 PK WND 19027/1549 SLP976 T02110144
KIAD 261452Z 16008KT 10SM FEW050 BKN100 BKN160 BKN250 18/16 A2951 RMK AO2 SLP991 60000 T01830156 58043
KIAD 261352Z 14006KT 8SM FEW008 SCT050 BKN100 BKN160 OVC200 16/14 A2956 RMK AO2 RAB32E47 SLP006 P0000 T01610144
KIAD 261252Z 17005KT 8SM FEW009 SCT055 OVC120 15/14 A2961 RMK AO2 SLP026 T01500139

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