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Impacts METAR Board
KDCA - Washington/National, VA, US
Updated at: 1100 UTC 21 Sep 2018
| Potential Impact | None | Slight | Moderate | High |
| Time | 20/23Z | 21/00Z | 21/01Z | 21/02Z | 21/03Z | 21/04Z | 21/05Z | 21/06Z | 21/07Z | 21/08Z | 21/09Z | 21/10Z | 21/11Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 77 | 76 | 75 | 74 | 74 | 73 | 72 | 72 | 72 | 72 | 72 | 71 | 71 |
| Dewpt | 68 | 67 | 67 | 67 | 66 | 66 | 65 | 65 | 66 | 65 | 65 | 66 | 66 |
| Altim | 30.16 | 30.18 | 30.20 | 30.22 | 30.22 | 30.23 | 30.22 | 30.22 | 30.22 | 30.21 | 30.22 | 30.23 | 30.23 |
| VIS | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| CIG | 36 | 40 | 39 | 41 | 40 | 20 | 22 | 16 | 40 | 38 | 18 | 18 | 37 |
| Cover | OVC | OVC | OVC | OVC | OVC | OVC | OVC | OVC | OVC | OVC | OVC | OVC | OVC |
| FltCat | VFR | VFR | VFR | VFR | VFR | MVFR | MVFR | MVFR | VFR | VFR | MVFR | MVFR | VFR |
| WX | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| WDir | 160 | 150 | 160 | 170 | 160 | 160 | 150 | 170 | 180 | 180 | 190 | 180 | 170 |
| WSpd | 7 | 7 | 10 | 9 | 10 | 9 | 8 | 8 | 7 | 7 | 8 | 6 | 6 |
| WGst | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
KDCA 202304Z 16007KT 10SM BKN036 OVC250 25/20 A3016 RMK AO2 T02500200KDCA 202352Z 15007KT 10SM FEW027 OVC040 24/19 A3018 RMK AO2 SLP218 T02440194 10283 20244 53007KDCA 210052Z 16010KT 10SM FEW022 OVC039 24/19 A3020 RMK AO2 SLP227 T02390194KDCA 210152Z 17009KT 10SM OVC041 23/19 A3022 RMK AO2 SLP233 T02330194KDCA 210252Z 16010KT 10SM OVC040 23/19 A3022 RMK AO2 SLP233 T02330189 51015KDCA 210352Z 16009KT 10SM BKN020 OVC041 23/19 A3023 RMK AO2 SLP235 T02280189KDCA 210452Z 15008KT 10SM BKN022 OVC038 22/18 A3022 RMK AO2 SLP232 T02220183 402830206KDCA 210604Z 17008KT 10SM BKN016 OVC038 22/18 A3022 RMK AO2 T02220183KDCA 210652Z 18007KT 10SM SCT016 OVC040 22/19 A3022 RMK AO2 SLP232 T02220189KDCA 210752Z 18007KT 10SM OVC038 22/18 A3021 RMK AO2 SLP230 T02220183KDCA 210852Z 19008KT 10SM BKN018 OVC040 22/18 A3022 RMK AO2 SLP232 T02220183 55001KDCA 211001Z 18006KT 10SM BKN018 OVC039 22/19 A3023 RMK AO2 T02170189KDCA 211052Z 17006KT 10SM SCT020 OVC037 22/19 A3023 RMK AO2 RAB23E34 SLP237 P0000 T02170189