KDCA - Washington/Reagan-National Arpt, VA, US
| 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 | 72 | 72 | 71 | 70 | 72 | 74 | 77 | 80 | 84 | 85 | 86 | 87 | 88 |
| Dewpt | 67 | 68 | 68 | 67 | 67 | 68 | 69 | 68 | 68 | 67 | 66 | 65 | 67 |
| Altim | 1019 | 1019 | 1019 | 1019.7 | 1020.4 | 1020.7 | 1021.4 | 1021.1 | 1021.1 | 1020.4 | 1021.1 | 1020.4 | 1020.1 |
| VIS | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ | 10+ |
| CIG | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 25000 | 25000 |
| Cover | SCT | FEW | SCT | FEW | SCT | FEW | FEW | FEW | FEW | SCT | SCT | BKN | BKN |
| FltCat | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR |
| WX | |||||||||||||
| WDir | 180 | 180 | 190 | 190 | 200 | 180 | 190 | 170 | 170 | 170 | 160 | 180 | 170 |
| WSpd | 3 | 6 | 4 | 4 | 3 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| WGst | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
METAR KDCA 210652Z 18003KT 10SM SCT200 22/19 A3009 RMK AO2 SLP188 T02220194
METAR KDCA 210752Z 18006KT 10SM FEW200 22/20 A3009 RMK AO2 SLP188 T02220200
METAR KDCA 210852Z 19004KT 10SM SCT200 22/20 A3009 RMK AO2 SLP189 T02170200 51005
METAR KDCA 210952Z 19004KT 10SM FEW200 21/19 A3011 RMK AO2 SLP194 T02110194
METAR KDCA 211052Z 20003KT 10SM SCT200 22/19 A3013 RMK AO2 SLP204 T02220194
METAR KDCA 211152Z 18003KT 10SM FEW200 23/20 A3014 RMK AO2 SLP205 T02330200 10233 20211 51015
METAR KDCA 211252Z 19004KT 10SM FEW150 25/21 A3016 RMK AO2 SLP212 T02500206
METAR KDCA 211352Z 17005KT 10SM FEW150 FEW250 27/20 A3015 RMK AO2 SLP210 T02670200
METAR KDCA 211452Z COR 17006KT 10SM FEW50 FEW250 29/20 A3015 RMK AO2 SLP210 T02890200 51006
METAR KDCA 211552Z 17007KT 10SM SCT050 SCT250 29/19 A3013 RMK AO2 SLP204 T02940194
METAR KDCA 211652Z 16008KT 10SM SCT050 SCT250 30/19 A3015 RMK AO2 SLP208 T03000189
METAR KDCA 211752Z 18009KT 10SM SCT050 BKN250 31/18 A3013 RMK AO2 SLP203 T03060183 10311 20233 56008
METAR KDCA 211852Z 17010KT 10SM SCT050 BKN250 31/19 A3012 RMK AO2 SLP199 T03110194