KDCA - Washington/Reagan-National Arpt, VA, US
| Potential Impact | None | Slight | Moderate | High |
| Time | 08/17Z | 08/18Z | 08/19Z | 08/20Z | 08/21Z | 08/22Z | 08/23Z | 09/00Z | 09/01Z | 09/02Z | 09/03Z | 09/04Z | 09/05Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 21 | 23 | 25 | 25 | 25 | 24 | 22 | 22 | 21 | 21 | 20 | 20 | 19 |
| Dewpt | 1 | 2 | 3 | 1 | 2 | -0 | -1 | -0 | -0 | -1 | -0 | -0 | -2 |
| Altim | 1027.5 | 1026.8 | 1026.2 | 1026.2 | 1026.5 | 1027.2 | 1027.9 | 1028.5 | 1028.9 | 1029.2 | 1029.2 | 1029.2 | 1028.9 |
| VIS | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ |
| CIG | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cover | SCT | SCT | SCT | SCT | FEW | CLR | CLR | CLR | CLR | CLR | CLR | CLR | CLR |
| FltCat | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR |
| WX | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| WDir | 340 | 330 | 330 | 320 | 330 | 330 | 330 | 320 | 340 | 340 | 330 | 330 | 310 |
| WSpd | 16 | 15 | 17 | 19 | 20 | 16 | 13 | 10 | 9 | 10 | 12 | 15 | 11 |
| WGst | 26 | 22 | 26 | 30 | 31 | -- | 22 | 18 | -- | -- | -- | -- | -- |
METAR KDCA 081652Z 34016G26KT 10SM SCT040 SCT250 M06/M17 A3034 RMK AO2 PK WND 32028/1607 SLP271 T10611172 $=
METAR KDCA 081752Z 33015G22KT 10SM SCT050 SCT250 M05/M17 A3032 RMK AO2 PK WND 36029/1741 SLP265 T10501167 11050 21100 58011 $=
METAR KDCA 081852Z 33017G26KT 10SM SCT055 SCT250 M04/M16 A3030 RMK AO2 PK WND 32026/1852 SLP261 T10391161 $=
METAR KDCA 081952Z 32019G30KT 10SM SCT050 SCT250 M04/M17 A3030 RMK AO2 PK WND 01033/1918 SLP259 T10391172 $=
METAR KDCA 082052Z 33020G31KT 10SM FEW050 FEW250 M04/M17 A3031 RMK AO2 PK WND 01043/2002 SLP262 T10391167 55002 $=
METAR KDCA 082152Z 33016KT 10SM CLR M04/M18 A3033 RMK AO2 PK WND 36029/2120 SLP270 T10441178 $=
METAR KDCA 082252Z 33013G22KT 10SM CLR M06/M18 A3035 RMK AO2 SLP276 T10561183 $=
METAR KDCA 082352Z 32010G18KT 10SM CLR M06/M18 A3037 RMK AO2 SLP283 4/002 T10561178 11039 21056 51020 $=
METAR KDCA 090052Z 34009KT 10SM CLR M06/M18 A3038 RMK AO2 SLP286 T10611178 $=
METAR KDCA 090152Z 34010KT 10SM CLR M06/M18 A3039 RMK AO2 SLP289 T10611183 $=
METAR KDCA 090252Z 33012KT 10SM CLR M07/M18 A3039 RMK AO2 SLP291 T10671178 51009 $=
METAR KDCA 090352Z 33015KT 10SM CLR M07/M18 A3039 RMK AO2 SLP288 T10671178 $=
METAR KDCA 090452Z 31011KT 10SM CLR M07/M19 A3038 RMK AO2 SLP288 T10721189 410391100 $=