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Impacts METAR Board
KSEA - Seattle-Tacoma Intl, WA, US
Updated at: 1900 UTC 21 Jun 2018
| 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 | 60 | 59 | 60 | 60 | 59 | 59 | 59 | 59 | 59 | 60 | 61 | 63 | 66 |
| Dewpt | 54 | 54 | 54 | 54 | 54 | 53 | 53 | 54 | 53 | 53 | 52 | 52 | 52 |
| Altim | 29.99 | 30.02 | 30.03 | 30.05 | 30.06 | 30.07 | 30.09 | 30.10 | 30.11 | 30.12 | 30.13 | 30.14 | 30.14 |
| VIS | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| CIG | 250 | 10 | 8 | 9 | 9 | 13 | 14 | 11 | 11 | 24 | 20 | 20 | 24 |
| Cover | BKN | BKN | OVC | OVC | OVC | OVC | OVC | OVC | OVC | OVC | OVC | OVC | OVC |
| FltCat | VFR | MVFR | IFR | IFR | IFR | MVFR | MVFR | MVFR | MVFR | MVFR | MVFR | MVFR | MVFR |
| WX | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| WDir | 200 | 200 | 210 | 210 | 220 | 230 | 200 | 210 | 200 | 200 | 210 | 200 | 190 |
| WSpd | 11 | 11 | 9 | 8 | 9 | 7 | 7 | 7 | 7 | 7 | 11 | 8 | 8 |
| WGst | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
KSEA 210653Z 20011KT 10SM FEW070 BKN250 16/12 A2999 RMK AO2 SLP158 T01560122KSEA 210753Z 20011KT 10SM BKN010 15/12 A3002 RMK AO2 CIG 007V012 SLP170 T01500122 403110150KSEA 210853Z 21009KT 10SM OVC008 16/12 A3003 RMK AO2 SLP174 T01560122 51026KSEA 210953Z 21008KT 10SM OVC009 16/12 A3005 RMK AO2 SLP178 T01560122KSEA 211053Z 22009KT 10SM OVC009 15/12 A3006 RMK AO2 SLP182 T01500122KSEA 211153Z 23007KT 10SM OVC013 15/12 A3007 RMK AO2 SLP187 T01500117 10167 20144 53013KSEA 211253Z 20007KT 10SM FEW010 OVC014 15/12 A3009 RMK AO2 SLP191 T01500117KSEA 211353Z 21007KT 10SM OVC011 15/12 A3010 RMK AO2 SLP195 T01500122KSEA 211453Z 20007KT 10SM SCT009 OVC011 15/12 A3011 RMK AO2 SLP199 T01500117 51011KSEA 211553Z 20007KT 10SM SCT015 OVC024 16/12 A3012 RMK AO2 SLP204 T01560117KSEA 211653Z 21011KT 10SM FEW015 OVC020 16/11 A3013 RMK AO2 SLP208 T01610111KSEA 211753Z 20008KT 10SM FEW015 OVC020 17/11 A3014 RMK AO2 SLP212 T01720111 10172 20144 51012KSEA 211853Z 19008KT 10SM BKN024 OVC035 19/11 A3014 RMK AO2 SLP213 T01890111