| Potential Impact | None | Slight | Moderate | High |
| Time | 1353Z | 03/15Z | 03/16Z | 03/17Z | 03/18Z | 03/19Z | 03/20Z | 03/21Z | 03/22Z | 03/23Z | 04/00Z | 04/01Z | 04/02Z | 04/03Z>> |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type | OBS | PRVL [TEMP] |
PRVL | PRVL | PRVL | PRVL | PRVL | PRVL | PRVL | PRVL | PRVL | PRVL | PRVL | PRVL |
| VIS | 10 | >6 [5] |
>6 | >6 | >6 | >6 | >6 | >6 | >6 | >6 | >6 | >6 | >6 | >6 |
| CIG | 14 | 20 [14] |
22 | 22 | 22 | 22 | 22 | 22 | 40 | 40 | 40 | 40 | 40 | 40 |
| Cover | OVC | OVC [OVC] |
BKN | BKN | BKN | BKN | BKN | BKN | OVC | OVC | OVC | OVC | OVC | OVC |
| FltCat | MVFR | MVFR [MVFR] |
MVFR | MVFR | MVFR | MVFR | MVFR | MVFR | VFR | VFR | VFR | VFR | VFR | VFR |
| WX | -- | VCSH [-RA BR] |
VCSH | VCSH | VCSH | VCSH | VCSH | VCSH | VCSH | VCSH | VCSH | VCSH | VCSH | VCSH |
| WDir | 150 | 150 [150] |
150 | 150 | 150 | 150 | 150 | 150 | 190 | 190 | 190 | 190 | 190 | 120 |
| WSpd | 7 | 8 [8] |
10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 6 |
| WGst | -- | -- [--] |
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
KSEA 031409Z 0314/0418 15008KT P6SM VCSH SCT010 OVC020
TEMPO 0314/0316 5SM -RA BR OVC014
FM031600 15010KT P6SM VCSH BKN022 BKN040
FM032200 19009KT P6SM VCSH SCT025 OVC040
FM040300 12006KT P6SM VCSH SCT025 OVC040
FM040800 14012KT 5SM -RA BKN025KSEA 031353Z 15007KT 10SM SCT010 OVC014 04/03 A2988 RMK AO2 SLP126 T00390033KSEA 031253Z 17007KT 10SM BKN013 OVC035 04/03 A2985 RMK AO2 SLP116 T00440033KSEA 031239Z 18007KT 10SM OVC013 04/03 A2984 RMK AO2 T00440033KSEA 031153Z 14006KT 5SM BR SCT009 BKN015 04/03 A2981 RMK AO2 SLP104 60041 70177 T00390028 10078 20039 53028