KSEA - Seattle-Tacoma Intl, WA, US
| Potential Impact | None | Slight | Moderate | High |
| Time | 7/14Z | 7/15Z | 7/16Z | 7/17Z | 7/18Z | 7/19Z | 7/20Z | 7/21Z | 7/22Z | 7/23Z | 8/ 0Z | 8/ 1Z | 8/ 2Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 63 | 65 | 67 | 70 | 72 | 73 | 75 | 76 | 75 | 76 | 76 | 76 | 74 |
| Dewpt | 55 | 57 | 58 | 59 | 59 | 59 | 60 | 58 | 58 | 59 | 60 | 54 | 53 |
| Altim | 29.93 | 29.92 | 29.92 | 29.92 | 29.92 | 29.92 | 29.91 | 29.90 | 29.89 | 29.86 | 29.85 | 29.85 | 29.84 |
| VIS | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| CIG | -- | -- | -- | 250 | 250 | 210 | 180 | 170 | 210 | 210 | 190 | 190 | 240 |
| Cover | CLR | CLR | FEW | OVC | OVC | BKN | OVC | OVC | OVC | BKN | BKN | BKN | BKN |
| FltCat | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR |
| WX | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| WDir | 360 | 30 | 360 | 340 | 360 | 270 | 300 | 0 | 280 | 320 | 290 | 10 | 330 |
| WSpd | 4 | 7 | 5 | 7 | 5 | 6 | 5 | 0 | 4 | 6 | 6 | 8 | 5 |
| WGst | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
KSEA 071353Z 36004KT 10SM CLR 17/13 A2993 RMK AO2 SLP137 T01720128
KSEA 071453Z 03007KT 10SM CLR 18/14 A2992 RMK AO2 SLP135 T01830139 58002
KSEA 071553Z 36005KT 10SM FEW250 19/14 A2992 RMK AO2 SLP134 T01940144
KSEA 071653Z 34007KT 10SM OVC250 21/15 A2992 RMK AO2 SLP134 T02110150
KSEA 071753Z 36005KT 10SM OVC250 22/15 A2992 RMK AO2 SLP133 T02220150 10228 20172 58002
KSEA 071853Z 27006KT 10SM BKN210 23/15 A2992 RMK AO2 SLP134 T02280150
KSEA 071953Z 30005KT 10SM BKN180 OVC250 24/16 A2991 RMK AO2 SLP130 T02390156
KSEA 072053Z 00000KT 10SM BKN170 OVC210 24/14 A2990 RMK AO2 SLP128 T02440144 58005
KSEA 072153Z 28004KT 10SM FEW110 SCT170 OVC210 24/14 A2989 RMK AO2 SLP123 T02390144
KSEA 072253Z 32006KT 10SM FEW110 SCT170 BKN210 24/15 A2986 RMK AO2 SLP115 T02440150
KSEA 072353Z 29006KT 10SM FEW110 BKN190 24/16 A2985 RMK AO2 SLP112 T02440156 10250 20217 56016
KSEA 080053Z 01008KT 10SM FEW110 BKN190 24/12 A2985 RMK AO2 SLP110 T02440122
KSEA 080153Z 33005KT 10SM SCT180 BKN240 23/12 A2984 RMK AO2 SLP109 T02330117