KDCA - Washington/Reagan-National Arpt, VA, US
| Potential Impact | None | Slight | Moderate | High |
| Time | 10/11Z | 10/12Z | 10/13Z | 10/14Z | 10/15Z | 10/16Z | 10/17Z | 10/18Z | 10/19Z | 10/20Z | 10/21Z | 10/22Z | 10/23Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 45 | 48 | 50 | 53 | 58 | 61 | 66 | 69 | 72 | 73 | 74 | 73 | 71 |
| Dewpt | 43 | 45 | 45 | 44 | 46 | 44 | 45 | 44 | 45 | 46 | 46 | 48 | 46 |
| Altim | 1028.9 | 1029.2 | 1028.9 | 1028.2 | 1027.9 | 1026.8 | 1025.8 | 1024.5 | 1023.1 | 1021.8 | 1021.1 | 1020.7 | 1020.4 |
| VIS | 9 | 9 | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ |
| CIG | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cover | SCT | SCT | SCT | FEW | FEW | FEW | FEW | FEW | FEW | SCT | SCT | SCT | SCT |
| FltCat | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR |
| WX | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| WDir | 140 | 180 | 170 | 160 | 170 | 150 | 160 | 160 | 170 | 170 | 180 | 190 | 180 |
| WSpd | 6 | 5 | 6 | 7 | 9 | 6 | 8 | 9 | 9 | 9 | 12 | 9 | 9 |
| WGst | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
METAR KDCA 101052Z 14006KT 9SM FEW008 SCT250 07/06 A3038 RMK AO2 SLP288 FEW V SCT T00720061
METAR KDCA 101152Z 18005KT 9SM FEW006 SCT250 09/07 A3039 RMK AO2 SLP291 FEW V SCT T00890072 10089 20067 53005
METAR KDCA 101252Z 17006KT 10SM FEW015 SCT250 10/07 A3038 RMK AO2 SLP286 T01000072
METAR KDCA 101352Z 16007KT 10SM FEW250 12/07 A3036 RMK AO2 SLP281 T01170067
METAR KDCA 101452Z 17009KT 10SM FEW250 14/08 A3035 RMK AO2 SLP277 T01440078 56014
METAR KDCA 101552Z 15006KT 10SM FEW250 16/07 A3032 RMK AO2 SLP269 T01610067
METAR KDCA 101652Z 16008KT 10SM FEW250 19/07 A3029 RMK AO2 SLP257 T01890072
METAR KDCA 101752Z 16009KT 10SM FEW250 21/07 A3025 RMK AO2 SLP244 T02060067 10206 20089 58034
METAR KDCA 101852Z 17009KT 10SM FEW250 22/07 A3021 RMK AO2 SLP230 T02220072
METAR KDCA 101952Z 17009KT 10SM SCT250 23/08 A3017 RMK AO2 SLP216 T02280078
METAR KDCA 102052Z 18012KT 10SM SCT250 23/08 A3015 RMK AO2 SLP208 T02330078 56035
METAR KDCA 102152Z COR 19009KT 10SM SCT250 23/09 A3014 RMK AO2 SLP206 T02280089
METAR KDCA 102252Z 18009KT 10SM SCT250 22/08 A3013 RMK AO2 SLP202 T02170078