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Impacts METAR Board
KSEA - Seattle-Tacoma Intl, WA, US
Updated at: 1300 UTC 21 Aug 2019
| Potential Impact | None | Slight | Moderate | High |
| Time | 21/01Z | 21/02Z | 21/03Z | 21/04Z | 21/05Z | 21/06Z | 21/07Z | 21/08Z | 21/09Z | 21/10Z | 21/11Z | 21/12Z | 21/13Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 80 | 79 | 72 | 69 | 66 | 65 | 64 | 62 | 61 | 62 | 61 | 61 | 61 |
| Dewpt | 57 | 57 | 56 | 56 | 55 | 54 | 54 | 53 | 53 | 54 | 53 | 54 | 56 |
| Altim | 29.90 | 29.91 | 29.94 | 29.96 | 29.99 | 30.01 | 30.01 | 30.01 | 30.01 | 30.00 | 30.00 | 30.00 | 30.00 |
| VIS | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| CIG | 240 | 240 | 250 | 220 | 240 | -- | -- | -- | -- | -- | 170 | -- | 110 |
| Cover | BKN | BKN | BKN | BKN | BKN | FEW | FEW | FEW | CLR | SCT | BKN | SCT | BKN |
| FltCat | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR |
| WX | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -RA |
| WDir | 220 | 220 | 220 | 220 | 0 | 200 | 150 | 0 | 170 | 150 | 180 | 160 | 210 |
| WSpd | 5 | 6 | 11 | 10 | 6 | 7 | 7 | 0 | 4 | 6 | 3 | 3 | 5 |
| WGst | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
KSEA 210053Z 22005KT 10SM BKN240 27/14 A2990 RMK AO2 SLP131 T02670139KSEA 210153Z 22006KT 10SM BKN240 26/14 A2991 RMK AO2 SLP131 T02610139KSEA 210253Z 22011KT 10SM BKN250 22/13 A2994 RMK AO2 SLP142 T02220133 53012KSEA 210353Z 22010KT 10SM BKN220 21/13 A2996 RMK AO2 SLP151 T02060133KSEA 210453Z VRB06KT 10SM BKN240 19/13 A2999 RMK AO2 SLP161 T01890128KSEA 210553Z 20007KT 10SM FEW250 18/12 A3001 RMK AO2 SLP166 T01830122 10272 20183 51023KSEA 210653Z 15007KT 10SM FEW250 18/12 A3001 RMK AO2 SLP166 T01780122KSEA 210753Z 00000KT 10SM FEW150 17/12 A3001 RMK AO2 SLP168 T01670117 402780133KSEA 210853Z 17004KT 10SM CLR 16/12 A3001 RMK AO2 SLP168 T01610117 50002KSEA 210953Z 15006KT 10SM SCT250 17/12 A3000 RMK AO2 SLP165 T01670122KSEA 211053Z 18003KT 10SM SCT110 BKN170 16/12 A3000 RMK AO2 SLP163 T01610117KSEA 211153Z 16003KT 10SM FEW050 SCT110 16/12 A3000 RMK AO2 SLP164 T01610122 10183 20156 55003KSEA 211253Z 21005KT 10SM -RA FEW055 SCT090 BKN110 16/13 A3000 RMK AO2 RAB25 SLP161 P0000 T01610133