NOTAM 6/1161 expired ZLA ARTCC

Aerial Demonstration and Air Show Seattle, WA

Permanent historical record of FAA Temporary Flight Restriction 6/1161 covering Seattle, WA. Issued under 14 CFR 91.145 for special event airspace.

Key facts

NOTAM 6/1161 restricted airspace within 5.7 NM of Seattle, WA from 2026-09-15 (Tuesday, September 15, 2026) 19:00 UTC to 2026-09-16 (Wednesday, September 16, 2026) 02:00 UTC.
Legal basis: 14 CFR 91.145. Reason category: Sporting and Demonstrations (Special Event Airspace).
Classification confidence: 88% based on rule 'rule_sporting' with evidence: "14 CFR 91.145 Special aerial event".
Captured by TFR Archive on 2026-09-11 02:00:00Z (Sep 10, 22:00 EDT); removed from active publication on 2026-09-16 02:15:00Z (Sep 15, 22:15 EDT).
Vertical boundaries: 0 FT SFC to 14,704 FT MSL.

Airspace Lifecycle Timeline

Issued 2026-09-11 02:00Z

→

Effective Start 2026-09-15 19:00Z

→

Amended Version 2

→

Effective End 2026-09-16 02:00Z

→

FAA Deleted 2026-09-16 02:15Z

Captured Version Changes (2 versions)

v1 scheduled 5.7 NM radius, 14,704 FT MSL

Captured 2026-09-11 02:00:00Z (Sep 10, 22:00 EDT)

Diff: Initial publication by FAA.

v2 expired 4.6 NM radius, 14,704 FT MSL

Captured 2026-09-15 22:00:00Z (Sep 15, 18:00 EDT)

Diff: Amended radius to 4.6 NM and extended end time by 4 hours.

Text equivalent of map: NOTAM 6/1161 defines an airspace cylinder centered at 47.4140 degrees North, -122.2892 degrees West with a radius of 5.7 NM and a ceiling of 14,704 FT MSL. Over its captured history, it evolved through 2 recorded version state(s) before removal by the FAA.

Airspace boundaries and version timeline for NOTAM 6/1161
Version	Captured (UTC)	Status	Radius (NM)	Ceiling	Diff Summary
1	2026-09-11T02:00:00+00:00	scheduled	5.7	14704 FT	Initial publication by FAA.
2	2026-09-15T22:00:00+00:00	expired	4.6	14704 FT	Amended radius to 4.6 NM and extended end time by 4 hours.

Airspace Flight Restriction Parameters

Permanent Dataset Record

Effective Window (UTC)

2026-09-15 19:00:00+00:00Z

to 2026-09-16 02:00:00+00:00Z

Altitude Boundaries

Floor: 0 FT SFC

Ceiling: 14,704 FT MSL

Radial Dimensions

Radius: 5.7 NM

Center: 47.4140N, 122.2892W

Resolved Geography & Impacted Facilities

Geographic Location

Jurisdiction: State of WA, nearest city: Seattle (5.2 NM).

Airports Inside & Near Perimeter

Airports Inside Radius: SEA

Airports Within 10 NM: None within 10 NM

Raw FAA NOTAM Publication Text

Verbatim Capture

!FDC 6/1161 ZLA WA..AIRSPACE SEATTLE, WA..TEMPORARY FLIGHT RESTRICTIONS PURSUANT TO 14 CFR 91.145 WI A 5.7 NMR OF 47.4140N/122.2892W SFC-14704FT MSL 2609151900-2609160200

Citation: TFR Archive, NOTAM 6/1161, version 2, captured 2026-09-11, https://tfrarchive.org/tfr/6-1161/

Source: FAA tfr.faa.gov and System Operations NOTAM publication. Captured: 2026-09-11T02:00:00+00:00. Permanent record preserved by TFR Archive under public domain principles.