Do ponto de vista climatológico em relação à precipitação tivemos um mês de maio muito seco, no entanto com períodos de forte precipitação, e um mês normal em relação à temperatura média do ar, mas com ocorrência de variações significativas na temperatura do ar diária.
| Risco | Iniciação | Final | Âmbito | Fenómeno |
| 19 Jun., 16:13:00 (GMT -07:00) | 20 Jun., 11:45:00 (GMT -07:00) | Greater Vancouver Area | Special Weather Statement. Status: Actual. Urgency: Expected. Severity: Minor. Summary: ...THUNDERSTORMS POSSIBLE OVER IN THE NORTHERN WILLAMETTE VALLEY AND SOUTHWEST WASHINGTON INTERIOR WEDNESDAY AFTERNOON AND EVENING... Thunderstorms may develop over the Northern Willamette Valley during the late afternoon and evening hours on Wednesday. While thunderstorms are more likely over the Cascades on Wednesday, | |
| 19 Jun., 16:13:00 (GMT -07:00) | 20 Jun., 11:45:00 (GMT -07:00) | Central Columbia River Gorge; South Washington Cascade Foothills; South Washington Cascades; Western Columbia River Gorge | Special Weather Statement. Status: Actual. Urgency: Expected. Severity: Minor. Summary: ...STRONG THUNDERSTORMS EXPECTED OVER THE CASCADES AND FOOTHILLS WEDNESDAY AFTERNOON AND EVENING... Thunderstorms are expected to develop over the Oregon Cascades Wednesday afternoon and then spread into the South Washington Foothills and Cascades later in the afternoon and evening. These storms will produce frequent lightning and localized heavy |