Thursday is the traditional day for sharing SDOT‘s roundup of big weekend events around the city that might affect traffic – this time around, the events include the Rock ‘n’ Roll Marathon, which will close the northbound Alaskan Way Viaduct/99 from 5 am-3:30 pm on Saturday. And while it’s not on the city’s list, don’t forget the Morgan Junction Community Festival, which will draw a crowd to and around Morgan Junction Park 10:30 am-7 pm in the 6400 block of California SW – we’ll have another festival preview later today. Read on for the citywide heads-up, which starts with an event in the stadium district today:

It’ll be a rocking weekend with numerous Pride celebrations and marches taking place in downtown Seattle, at the Seattle Center and on Capitol Hill, not to mention the huge Rock N Roll Marathon and Half Marathon that wind across the city and even across Lake Washington and back on I-90. The Seattle Storm will be in town for two games and other crowd pleasers featured at the Seattle Center include the Rat City Rollergirls and the Seattle Men’s Chorus.

The Seattle Department of Transportation urges motorists to plan ahead for traffic delays, or better yet, consider parking the car and taking one of the many alternate modes of transportation available – Metro Transit, the West Seattle Water Taxi, the Sounder commuter train, Link light rail, car pool, bicycle or walk, if feasible. For more information about the weekend ahead, please see the schedule below:

Thursday, June 21

Rock N Roll Marathon and Half Marathon Expo: 11 a.m. – 7 p.m.
CenturyLink Field Event Center
10,000 attending
Expect congestion in the surrounding area.

Friday, June 22

Rock N Roll Marathon and Half Marathon Expo: 10 a.m. – 7 p.m.

CenturyLink Field Event Center;
18,000 attending
Expect congestion in the surrounding area

Seattle Storm vs. San Antonio Silver Stars: 7 p.m.
Key Arena, Seattle Center
6,000 attending
Expect congestion on streets adjacent to arena.

Wildrose Pride 2012: 6 p.m. – 2 a.m.
11th Avenue between E Pike and E Union streets
800 attending
Streets closed from 6 a.m. Friday, June 22, to 6 a.m. on Monday, June 25: 11th Avenue between E Pike and E Union Street; E Pike Street between 10th Avenue and 11th Avenue.
Traffic is expected to be heavy in the surrounding area.

Saturday, June 23

Rock N Roll Marathon and Half Marathon: 7 a.m.
Starts and ends at the Seattle Center
Streets closed overnight and in the morning in preparation for the marathon (from June 22 at 11:59 p.m. – 11 a.m.): Broad Street from Denny Way to Fifth Avenue N and Fifth Avenue N from Broad to Mercer streets.
30,000 + participants expected
Marathon route winds through Seattle on many major roadways, including SR 99, Second Avenue, S Dearborn Street, Rainier Avenue S and Lake Washington Boulevard S. Please see the marathon website for all the route details. http://seattle.competitor.com/

Motorists should plan on delays along the race route throughout the morning and into the afternoon and around the Seattle Center.

Approximately 40 Metro Transit bus routes will be significantly disrupted by the marathon. For more specifics about the bus reroutes, please visit Metro’s Events & Construction webpage. You can also call the Customer Information Office at (206) 553-3000.

PURR Block Party: 12 Noon – 2 a.m. (Sunday)
11th Avenue between E Pine and E Pike streets
1,000 expected
Street closure hours: 8 a.m. to 1 p.m. on Sunday

Capitol Hill Pride Festival: 11 a.m. – 10 p.m.
Broadway E between E John Street and E Denny Way
30,000 attending
Street closed between 8 a.m. – 12 Midnight

Seattle Dyke March: 7 p.m.
Broadway and E Pine Street
1,000;
March route: starts at Broadway and E Pine Street; heads east on Pine to 12th Avenue; north on 12th to E Mercer Street; west on Mercer to Broadway; south on Broadway to E Pine Street. SPD will escort. Expect congestion along the march route.

Wildrose Pride 2012: 1 p.m. – 2 a.m.
11th Avenue between E Pike and E Union streets
2,500 attending
Streets closed from 6 a.m. Friday, June 22, to 6 a.m. on Monday, June 25: 11th Avenue between E Pike and E Union Street; E Pike Street between 10th Avenue and 11th Avenue.

Rat City Roller Girls: 5:30 p.m.
Key Arena, Seattle Center
5,000 attending
Expect heavy traffic on streets adjacent to the arena.

Seattle Men’s Chorus: 8 p.m.
McCaw Hall, Seattle Center
2,000 attending
Plan for heavier traffic along Mercer Street.

Sunday, June 24

Seattle Pride Parade and March: 11 a.m.
Parade will stage on Fourth Avenue between Columbia and Union streets starting at 6 a.m.
250,000 attending

Parade route: North on Fourth from Union Street to Denny Way; west on Denny to Second Avenue N; north on Second into the Seattle Center.
Expect heavy congestion throughout downtown and in the area surrounding the Seattle Center.

Wildrose Pride 2012: 1 p.m. – 12 Midnight
11th Avenue between E Pike and E Union streets
2,700 attending
Streets closed from 6a.m. Friday, June 22, to 6 a.m. on Monday, June 25: 11th Avenue between E Pike and E Union Street; E Pike Street between 10th Avenue and 11th Avenue.
Plan for traffic delays in the surrounding area.

The Cuff Pride Day Celebration: 12 Noon – 10 p.m.
13th Avenue between E Pine and E Pike streets
5,000 attending
Street closed 6 a.m. to 11:59 p.m.:13th Avenue between E Pine and E Pike streets.
Expect traffic congestion on adjacent streets.

Seattle Storm vs. Washington Mystics: 4 p.m.
Key Arena, Seattle Center
6,000 attending
Expect congestion on streets adjacent to arena.