Metro Region Weather: Hour-By-Hour Forecast For Greater Portland

PORTLAND, OR — National Weather Service forecasters upgraded an earlier winter weather advisory to a winter storm warning Tuesday morning, announcing the possibility of as much as 7 inches of snow accumulation across the Portland metro region by 4 a.m. Wednesday. By 2 p.m. Tuesday, the possible snow accumulation inch count was reduced to 5 inches.

As temperatures dropped early Feb. 20, schools in the metro area systematically announced early releases for all students and the cancellation of afternoon and evening activities. By 11:30 a.m., the National Weather Service was upgrading its storm forecast.

TriMet transit then cancelled service to some areas at higher elevations out of an abundance of caution. Routes that weren't cancelled altogether would likely see chained buses, causing additional delays due to the max operating speed of 25 mph for chained tires. (For updated weather and travels alerts from TrIMet, check trimet.org/alerts.)

By 3 p.m. Tuesday, many residents in the metro region were wondering whether anything was actually going to happen at all.

Below, Patch provided an hour-by-hour breakdown of the storm:

Tuesday — 11 a.m.

• Temperature at PDX: 32 degrees
• Wind: East, 13 mph
• New snow: Less than 1 inch

12 p.m.

• Temperature: 33 degree
• Wind: East, 12 mph
• New snow: Less than 1 inch

1 p.m.

• Temperature: 33 degrees
• Wind: East, 13 mph
• Total snow (since 11 a.m.): 0.04 inches

2 p.m.

• Temperature: 34 degrees
• Wind: East, 14 mph
• New snow: None

3 p.m.

• Temperature: 33 degrees
• Wind: East, 13 mph
• New snow: None

4 p.m.

• Temperature: 34 degrees
• Wind: East, 12 mph
• New snow: None

5 p.m.

• Temperature: 33 degrees
• Wind: East, 15 mph
• New snow: 0.01 inch

6 p.m.

• Temperature: 33 degrees
• Wind: Southeast, 9 mph
• New snow: None

7 p.m.

• Temperature: 33 degrees
• Wind: East, 6 mph
• New snow: None

8 p.m.

• Temperature: 32 degrees
• Wind: Southeast, 5 mph
• New snow: 0.12 inch

9 p.m.

• Temperature: 32 degrees
• Wind: South, 6 mph
• New snow: o.o4 inch

10 p.m.

• Temperature: 33 degrees
• Wind: South, 5 mph
• New snow (since 5 p.m.): 0.24 inch

Refresh every hour for updates

Top Photo: Jan. 11, 2017, snow storm in Hillsboro - via Travis Loose