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Impacts METAR Board
KIAD - Washington/Dulles In, VA, US
Updated at: 1900 UTC 21 Sep 2021
| Potential Impact | None | Slight | Moderate | High |
| Time | 21/07Z | 21/08Z | 21/09Z | 21/10Z | 21/11Z | 21/12Z | 21/13Z | 21/14Z | 21/15Z | 21/16Z | 21/17Z | 21/18Z | 21/19Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 62 | 63 | 63 | 63 | 63 | 65 | 68 | 71 | 74 | 76 | 78 | 78 | 78 |
| Dewpt | 58 | 59 | 59 | 60 | 60 | 61 | 63 | 65 | 66 | 67 | 66 | 66 | 66 |
| Altim | 30.28 | 30.27 | 30.27 | 30.27 | 30.28 | 30.29 | 30.29 | 30.28 | 30.28 | 30.27 | 30.25 | 30.23 | 30.21 |
| VIS | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| CIG | 49 | 50 | -- | -- | 23 | 18 | 19 | 15 | 15 | 24 | 33 | 28 | 70 |
| Cover | BKN | BKN | SCT | SCT | BKN | BKN | BKN | BKN | BKN | BKN | BKN | BKN | OVC |
| FltCat | VFR | VFR | VFR | VFR | MVFR | MVFR | MVFR | MVFR | MVFR | MVFR | VFR | MVFR | VFR |
| WX | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| WDir | 0 | 0 | 0 | 20 | 80 | 0 | 60 | 110 | 0 | 150 | 140 | 170 | 140 |
| WSpd | 0 | 0 | 0 | 4 | 4 | 0 | 5 | 7 | 5 | 6 | 8 | 6 | 5 |
| WGst | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
KIAD 210652Z 00000KT 10SM FEW023 BKN049 17/14 A3028 RMK AO2 SLP252 T01670144KIAD 210752Z 00000KT 10SM BKN050 17/15 A3027 RMK AO2 SLP248 T01720150KIAD 210852Z 00000KT 10SM FEW024 SCT030 17/15 A3027 RMK AO2 SLP247 T01720150 56006KIAD 210952Z 02004KT 10SM FEW021 SCT028 17/16 A3027 RMK AO2 SLP248 T01720156KIAD 211052Z 08004KT 10SM BKN023 BKN090 17/16 A3028 RMK AO2 SLP251 T01720156KIAD 211152Z 00000KT 10SM BKN018 BKN040 BKN110 18/16 A3029 RMK AO2 SLP255 T01830161 10189 20161 53007KIAD 211259Z 06005KT 10SM SCT014 BKN019 BKN130 BKN220 20/17 A3029 RMK AO2 T02000172KIAD 211403Z 11007KT 10SM BKN015 BKN019 BKN120 22/18 A3028 RMK AO2 T02170183KIAD 211452Z VRB05KT 10SM BKN015 BKN019 BKN120 23/19 A3028 RMK AO2 SLP251 60000 T02330189 58003KIAD 211552Z 15006KT 10SM BKN024 BKN040 BKN150 24/19 A3027 RMK AO2 SLP247 T02440194KIAD 211652Z 14008KT 10SM SCT025 BKN033 BKN130 BKN240 26/19 A3025 RMK AO2 SLP242 T02560189KIAD 211752Z 17006KT 10SM BKN028 BKN050 BKN120 26/19 A3023 RMK AO2 SLP235 60000 T02560189 10272 20183 58015KIAD 211852Z 14005KT 10SM SCT028 OVC070 26/19 A3021 RMK AO2 SLP230 T02560189