KDCA - Washington/Reagan-National Arpt, VA, US
| Potential Impact | None | Slight | Moderate | High |
| Time | 07/01Z | 07/02Z | 07/03Z | 07/04Z | 07/05Z | 07/06Z | 07/07Z | 07/08Z | 07/09Z | 07/10Z | 07/11Z | 07/12Z | 07/13Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 34 | 34 | 32 | 32 | 32 | 32 | 30 | 30 | 30 | 29 | 29 | 30 | |
| Dewpt | 32 | 31 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 28 | 28 | 28 | |
| Altim | 1016 | 1016 | 1017 | 1017.7 | 1018.4 | 1018.4 | 1018.4 | 1019 | 1019.4 | 1020.4 | 1020.7 | 1020.7 | |
| VIS | 8 | 8 | 7 | 8 | 7 | 7 | 0.13 | 0.13 | 0.13 | 0.5 | 0.5 | 0.25 | |
| CIG | -- | -- | -- | -- | 5500 | -- | 200 | 200 | 200 | 200 | 200 | 200 | |
| Cover | SCT | SCT | FEW | FEW | BKN | FEW | OVX | OVX | OVX | OVC | OVC | OVX | |
| FltCat | VFR | VFR | VFR | VFR | VFR | VFR | LIFR | LIFR | LIFR | LIFR | LIFR | LIFR | |
| WX | -- | -- | -- | -- | -- | -- | FZFG | FZFG | FZFG | FZFG | FZFG | FZFG | |
| WDir | 200 | 200 | 190 | 200 | 210 | 200 | 180 | 230 | 240 | 230 | 220 | 230 | |
| WSpd | 5 | 7 | 6 | 5 | 4 | 5 | 5 | 3 | 4 | 4 | 4 | 4 | |
| WGst | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
METAR KDCA 070052Z 20005KT 8SM SCT250 01/00 A3000 RMK AO2 SLP157 T00110000 $
METAR KDCA 070152Z 20007KT 8SM SCT250 01/M01 A3000 RMK AO2 SLP159 T00111006 $
METAR KDCA 070252Z 19006KT 7SM FEW250 00/M01 A3003 RMK AO2 SLP168 T00001011 53012 $
METAR KDCA 070352Z 20005KT 8SM FEW250 00/M01 A3005 RMK AO2 SLP174 T00001011 $
METAR KDCA 070452Z 21004KT 7SM FEW030 BKN055 00/M01 A3007 RMK AO2 SLP182 T00001011 400671006 $
METAR KDCA 070552Z 20005KT 7SM FEW030 FEW050 00/M01 A3007 RMK AO2 SLP182 T00001011 10022 21006 51014 $
METAR KDCA 070652Z 18005KT 1/8SM R01/2000V3000FT FZFG VV002 M01/M02 A3007 RMK AO2 PRESFR SLP182 I1000 T10111017 $
METAR KDCA 070752Z 23003KT 1/8SM R01/2000V3000FT FZFG VV002 M01/M02 A3009 RMK AO2 SLP188 I1001 T10111017 $
METAR KDCA 070852Z 24004KT 1/8SM R01/1600V1800FT FZFG VV002 M01/M02 A3010 RMK AO2 SLP190 I3001 T10111017 53008 $
METAR KDCA 071052Z 23004KT 1/2SM R01/4000VP6000FT FZFG OVC002 M02/M02 A3013 RMK AO2 SLP202 VIS NE 2 T10171022 $
METAR KDCA 071152Z 22004KT 1/2SM R01/6000VP6000FT FZFG OVC002 M02/M02 A3014 RMK AO2 SLP207 VIS NE 2 I6001 T10171022 10000 21017 53017 $
METAR KDCA 071252Z 23004KT 1/4SM R01/3000VP6000FT FZFG VV002 M01/M02 A3014 RMK AO2 SLP206 T10111022 $