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Impacts METAR Board
KSEA - Seattle-Tacoma Intl, WA, US
Updated at: 1000 UTC 15 Dec 2018
| Potential Impact | None | Slight | Moderate | High |
| Time | 14/22Z | 14/23Z | 15/00Z | 15/01Z | 15/02Z | 15/03Z | 15/04Z | 15/05Z | 15/06Z | 15/07Z | 15/08Z | 15/09Z | 15/10Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 52 | 50 | 55 | 56 | 53 | 48 | 46 | 45 | 45 | 44 | 43 | 43 | 43 |
| Dewpt | 38 | 39 | 36 | 34 | 37 | 40 | 39 | 37 | 37 | 36 | 38 | 37 | 38 |
| Altim | 29.48 | 29.48 | 29.48 | 29.52 | 29.55 | 29.64 | 29.72 | 29.79 | 29.86 | 29.92 | 29.97 | 29.98 | 30.00 |
| VIS | 10 | 10 | 10 | 10 | 10 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| CIG | 150 | 110 | 100 | 90 | 60 | 20 | 20 | 160 | 150 | -- | 33 | 23 | 40 |
| Cover | BKN | BKN | BKN | BKN | BKN | OVC | OVC | BKN | BKN | SCT | BKN | OVC | BKN |
| FltCat | VFR | VFR | VFR | VFR | VFR | MVFR | MVFR | VFR | VFR | VFR | VFR | MVFR | VFR |
| WX | -- | -- | -- | -- | -- | -RA | -- | -- | -- | -- | -RA | -RA | -- |
| WDir | 230 | 190 | 200 | 190 | 190 | 200 | 210 | 210 | 210 | 210 | 190 | 210 | 200 |
| WSpd | 9 | 6 | 15 | 26 | 21 | 25 | 23 | 24 | 19 | 18 | 15 | 15 | 12 |
| WGst | -- | -- | 28 | 39 | 34 | 34 | 33 | 31 | 24 | 23 | 19 | 20 | -- |
KSEA 142153Z 23009KT 10SM FEW120 BKN150 11/03 A2948 RMK AO2 SLP988 T01110033KSEA 142253Z 19006KT 10SM BKN110 BKN150 10/04 A2948 RMK AO2 SLP988 T01000039KSEA 142353Z 20015G28KT 10SM FEW050 BKN100 BKN150 13/02 A2948 RMK AO2 PK WND 22028/2350 SLP990 T01280022 10133 20089 55000KSEA 150053Z 19026G39KT 10SM FEW060 BKN090 BKN140 13/01 A2952 RMK AO2 PK WND 20039/0051 SLP002 T01330011KSEA 150153Z 19021G34KT 10SM FEW045 BKN060 BKN150 12/03 A2955 RMK AO2 PK WND 19039/0055 SLP013 T01170028KSEA 150253Z 20025G34KT 9SM -RA BKN020 OVC040 09/04 A2964 RMK AO2 PK WND 18047/0212 RAB09 SLP045 P0000 60000 T00890044 53054KSEA 150353Z 21023G33KT 10SM BKN020 OVC026 08/04 A2972 RMK AO2 PK WND 21041/0316 RAE50 PRESRR SLP073 P0000 T00780039KSEA 150453Z 21024G31KT 10SM FEW023 BKN160 07/03 A2979 RMK AO2 PK WND 22041/0406 SLP096 T00720028KSEA 150553Z 21019G24KT 10SM SCT025 BKN150 07/03 A2986 RMK AO2 PK WND 20028/0518 SLP117 60000 T00720028 10139 20072 51071KSEA 150653Z 21018G23KT 10SM FEW025 SCT070 SCT150 07/02 A2992 RMK AO2 PK WND 20027/0617 SLP137 T00670022KSEA 150753Z 19015G19KT 10SM -RA FEW020 BKN033 BKN065 06/03 A2997 RMK AO2 PK WND 19026/0734 RAB38 SLP157 P0001 T00610033 401390061KSEA 150853Z 21015G20KT 10SM -RA BKN023 BKN030 OVC100 06/03 A2998 RMK AO2 RAE22B41 SLP160 P0000 60001 T00610028 51043KSEA 150953Z 20012KT 10SM SCT015 BKN040 BKN065 06/03 A3000 RMK AO2 RAE28 SLP166 P0000 T00610033