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Impacts METAR Board
KDCA - Washington/National, VA, US
Updated at: 0700 UTC 18 Sep 2021
| Potential Impact | None | Slight | Moderate | High |
| Time | 17/19Z | 17/20Z | 17/21Z | 17/22Z | 17/23Z | 18/00Z | 18/01Z | 18/02Z | 18/03Z | 18/04Z | 18/05Z | 18/06Z | 18/07Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 80 | 81 | 81 | 80 | 78 | 77 | 76 | 75 | 75 | 72 | 72 | 72 | 71 |
| Dewpt | 70 | 70 | 70 | 69 | 70 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 68 |
| Altim | 30.15 | 30.14 | 30.13 | 30.12 | 30.12 | 30.12 | 30.14 | 30.14 | 30.13 | 30.12 | 30.12 | 30.11 | 30.11 |
| VIS | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| CIG | 50 | 47 | 70 | 80 | 90 | 250 | -- | -- | -- | -- | -- | 55 | -- |
| Cover | OVC | OVC | BKN | BKN | BKN | BKN | SCT | FEW | FEW | FEW | SCT | BKN | SCT |
| FltCat | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR |
| WX | -- | -- | -- | -- | -RA | -- | -- | -- | -- | -- | -- | -- | -- |
| WDir | 50 | 20 | 70 | 60 | 130 | 60 | 60 | 70 | 60 | 10 | 30 | 60 | 360 |
| WSpd | 6 | 8 | 4 | 4 | 5 | 6 | 5 | 4 | 5 | 3 | 4 | 4 | 3 |
| WGst | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
KDCA 171852Z 05006KT 10SM SCT024 OVC050 27/21 A3015 RMK AO2 SLP210 T02670211KDCA 171952Z 02008KT 10SM SCT026 BKN047 OVC070 27/21 A3014 RMK AO2 SLP206 T02720211KDCA 172052Z 07004KT 10SM FEW026 SCT047 BKN070 27/21 A3013 RMK AO2 SLP202 T02720211 56015KDCA 172152Z 06004KT 10SM SCT030 BKN080 27/21 A3012 RMK AO2 SLP200 T02670206KDCA 172252Z 13005KT 10SM -RA FEW028 SCT033 BKN090 26/21 A3012 RMK AO2 RAB24 SLP200 P0000 T02560211KDCA 172352Z 06006KT 10SM FEW044 SCT090 BKN250 25/21 A3012 RMK AO2 RAE2254 SLP198 P0000 60000 T02500206 10278 20250 57003KDCA 180052Z 06005KT 10SM FEW040 FEW090 SCT250 24/21 A3014 RMK AO2 SLP205 T02440206KDCA 180152Z 07004KT 10SM FEW250 24/21 A3014 RMK AO2 SLP205 T02390206KDCA 180252Z 06005KT 10SM FEW160 FEW250 24/21 A3013 RMK AO2 SLP204 T02390206 50005KDCA 180352Z 01003KT 10SM FEW160 FEW250 22/21 A3012 RMK AO2 SLP200 T02220206KDCA 180452Z 03004KT 10SM FEW010 FEW160 SCT250 22/21 A3012 RMK AO2 SLP199 T02220206 402780217KDCA 180552Z 06004KT 10SM BKN055 BKN250 22/21 A3011 RMK AO2 SLP194 T02220206 10250 20217 58010KDCA 180652Z 36003KT 10SM FEW055 SCT150 SCT250 22/20 A3011 RMK AO2 SLP194 T02170200