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Impacts METAR Board
KIAD - Washington/Dulles In, VA, US
Updated at: 2100 UTC 01 Feb 2023
| Potential Impact | None | Slight | Moderate | High |
| Time | 01/09Z | 01/10Z | 01/11Z | 01/12Z | 01/13Z | 01/14Z | 01/15Z | 01/16Z | 01/17Z | 01/18Z | 01/19Z | 01/20Z | 01/21Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 32 | 32 | 33 | 33 | 32 | 31 | 33 | 34 | 35 | 36 | 37 | 39 | 38 |
| Dewpt | 29 | 30 | 28 | 27 | 23 | 19 | 17 | 18 | 18 | 17 | 16 | 16 | 15 |
| Altim | 30.21 | 30.21 | 30.22 | 30.24 | 30.26 | 30.30 | 30.34 | 30.34 | 30.32 | 30.31 | 30.29 | 30.29 | 30.28 |
| VIS | 1 | 1.5 | 5 | 6 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| CIG | 10 | 40 | 40 | 80 | 90 | 110 | 250 | -- | -- | -- | 250 | 250 | 250 |
| Cover | OVC | OVC | OVC | OVC | BKN | BKN | BKN | SCT | SCT | SCT | BKN | BKN | BKN |
| FltCat | IFR | IFR | MVFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR |
| WX | -SN BR | -SN BR | BR | BR | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| WDir | 350 | 10 | 360 | 350 | 360 | 350 | 340 | 330 | 330 | 350 | 360 | 340 | 320 |
| WSpd | 8 | 5 | 7 | 8 | 11 | 10 | 12 | 11 | 11 | 9 | 11 | 7 | 6 |
| WGst | -- | -- | -- | -- | 17 | -- | -- | -- | 18 | -- | 16 | 16 | -- |
KIAD 010903Z 35008KT 1SM R01R/P6000FT -SN BR SCT006 BKN010 OVC022 00/M02 A3021 RMK AO2 P0000 T00001017KIAD 010957Z 01005KT 1 1/2SM -SN BR BKN040 BKN055 OVC060 00/M01 A3021 RMK AO2 P0000 T00001011KIAD 011054Z 36007KT 5SM BR BKN040 OVC070 01/M02 A3022 RMK AO2 T00061022KIAD 011152Z 35008KT 6SM BR FEW017 OVC080 01/M03 A3024 RMK AO2 SLP244 60006 70013 I6000 T00061028 10017 20000 53014KIAD 011252Z 36011G17KT 10SM FEW018 BKN090 00/M05 A3026 RMK AO2 SLP250 T00001050KIAD 011352Z 35010KT 10SM BKN110 BKN200 M01/M07 A3030 RMK AO2 PRESRR SLP264 T10061072KIAD 011452Z 34012KT 10SM FEW110 BKN250 01/M08 A3034 RMK AO2 SLP275 T00061083 53030KIAD 011552Z 33011KT 10SM FEW120 SCT250 01/M08 A3034 RMK AO2 SLP276 T00111078KIAD 011652Z 33011G18KT 10SM SCT250 02/M08 A3032 RMK AO2 SLP270 T00171078KIAD 011752Z 35009KT 10SM SCT250 02/M08 A3031 RMK AO2 SLP266 T00221083 10028 21006 58008KIAD 011852Z 36011G16KT 10SM FEW150 BKN250 03/M09 A3029 RMK AO2 SLP259 T00281089KIAD 011952Z 34007G16KT 10SM FEW150 BKN250 04/M09 A3029 RMK AO2 SLP259 T00391089KIAD 012052Z 32006KT 10SM FEW150 BKN250 03/M09 A3028 RMK AO2 SLP256 T00331094 56010