Unstable approach — ACA559

ACA559 (Air Canada) was operating from KLAX to CYVR on 2026-08-21. SkyMeter detected a low approach-stability score at Vancouver International Airport (CYVR) on runway 31 at 02:39 UTC. Trace data at the event: 1085 ft AGL, 136 kt GS. Approach stability score: 43/100. Scores below 50 occur on under 10% of approaches at this runway and indicate the v2 scorer flagged the approach as highly anomalous (three or more gates exceeded the runway's P90 envelope simultaneously). METAR at the time reported 3 kt wind, 3 kt crosswind component, 48,280 m visibility. The approach-stability score rates the final approach against stabilized-approach gates (glideslope, lateral deviation, descent rate, and IAS) at defined altitudes. A low score means one or more of those were outside the normal envelope for how the approach was flown. The score is graded by guidance type, so instrument approaches (ILS or an aligned straight-in) are held to the full gate set, while visual and pattern arrivals are surfaced only when the score is clearly low. The score is advisory and observational, a deviation measure, not an assertion of an accident. Detection algorithm and known limitations: see SkyMeter methodology.

• SECURITY6/3475 2026-03-08 09:00Z – 2026-11-01 09:59Z SFC–180 ft

  BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local

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• SECURITY6/5797 2026-04-03 00:01Z – 2026-09-28 23:59Z SFC–400 ft

  SACRAMENTO, CA, Thursday, April 2, 2026 through Monday, September 28, 2026 Local

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• SECURITY6/6491 2026-07-20 07:01Z – 2026-09-16 06:59Z SFC–1,499 ft

  Concord, CA, Monday, July 20, 2026 through Tuesday, September 15, 2026 Local

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• HAZARDS6/7246 2026-07-21 05:00Z – 2026-08-21 03:00Z SFC–10,500 ft

  20NM N INDEPENDENCE, CA, Tuesday, July 21, 2026 through Friday, August 21, 2026 UTC

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• HAZARDS6/7372 2026-07-21 13:38Z – 2026-08-22 03:00Z SFC–10,500 ft

  20NM N INDEPENDENCE, CA, Tuesday, July 21, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/2696 2026-08-06 19:30Z – 2026-08-21 03:00Z SFC–9,000 ft

  24NM NE VANCOUVER, WA, Thursday, August 6, 2026 through Friday, August 21, 2026 UTC

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• HAZARDS6/2750 2026-08-07 00:45Z – 2026-08-22 03:00Z SFC–10,000 ft

  17NM NW CLE ELUM, WA, Friday, August 7, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/2764 2026-08-07 03:30Z – 2026-08-22 03:00Z SFC–9,000 ft

  30NM NW WINTHROP, WA, Friday, August 7, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/2773 2026-08-07 05:00Z – 2026-08-21 05:00Z SFC–7,500 ft

  50NM SW COLVILLE, WA, Friday, August 7, 2026 through Friday, August 21, 2026 UTC

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• HAZARDS6/2774 2026-08-07 05:00Z – 2026-08-21 05:00Z SFC–9,000 ft

  20NM SE MADRAS, OR, Friday, August 7, 2026 through Friday, August 21, 2026 UTC

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• HAZARDS6/2775 2026-08-07 15:00Z – 2026-08-21 04:00Z SFC–10,000 ft

  22NM NW JOHN DAY, OR, Friday, August 7, 2026 through Friday, August 21, 2026 UTC

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• HAZARDS6/2887 2026-08-07 20:30Z – 2026-08-22 03:00Z SFC–10,000 ft

  2NM NE DARRINGTON, WA, Friday, August 7, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/2901 2026-08-08 00:45Z – 2026-08-21 05:00Z SFC–10,000 ft

  37NM SE TACOMA, WA, Saturday, August 8, 2026 through Friday, August 21, 2026 UTC

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• HAZARDS6/2921 2026-08-08 05:00Z – 2026-08-21 05:00Z SFC–11,000 ft

  15NM N KLAMATH FALLS, OR, Saturday, August 8, 2026 through Friday, August 21, 2026 UTC

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• HAZARDS6/2924 2026-08-08 05:00Z – 2026-08-22 05:00Z SFC–9,000 ft

  24NM NE VANCOUVER, WA, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/2919 2026-08-08 15:00Z – 2026-08-23 04:00Z SFC–10,000 ft

  2NM NE DARRINGTON, WA, Saturday, August 8, 2026 through Sunday, August 23, 2026 UTC

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• HAZARDS6/3039 2026-08-08 17:30Z – 2026-08-22 04:00Z SFC–11,500 ft

  6NM SW RENO, NV, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/3074 2026-08-08 19:45Z – 2026-08-23 05:00Z SFC–9,000 ft

  20NM SE MADRAS, OR, Saturday, August 8, 2026 through Sunday, August 23, 2026 UTC

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• HAZARDS6/3077 2026-08-08 20:15Z – 2026-08-22 05:00Z SFC–11,000 ft

  15NM N KLAMATH FALLS, OR, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/3089 2026-08-09 00:45Z – 2026-08-22 05:00Z SFC–13,500 ft

  26NM NW LEAVENWORTH, WA, Sunday, August 9, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/3100 2026-08-09 02:44Z – 2026-08-22 04:00Z SFC–6,000 ft

  7NM E GRASS VALLEY, CA, Sunday, August 9, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/3099 2026-08-09 02:45Z – 2026-08-23 05:00Z SFC–13,500 ft

  26NM NW LEAVENWORTH, WA, Sunday, August 9, 2026 through Sunday, August 23, 2026 UTC

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• HAZARDS6/3104 2026-08-09 05:00Z – 2026-08-23 13:00Z SFC–5,000 ft

  12NM N MEDFORD, OR, Sunday, August 9, 2026 through Sunday, August 23, 2026 UTC

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• HAZARDS6/3105 2026-08-09 05:00Z – 2026-08-24 04:00Z SFC–10,000 ft

  17NM NW CLE ELUM, WA, Sunday, August 9, 2026 through Monday, August 24, 2026 UTC

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• HAZARDS6/3106 2026-08-09 05:00Z – 2026-08-23 04:00Z SFC–10,500 ft

  19NM N OMAK, WA, Sunday, August 9, 2026 through Sunday, August 23, 2026 UTC

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• HAZARDS6/3107 2026-08-09 05:00Z – 2026-08-24 04:00Z SFC–8,000 ft

  7NM SW MEDFORD, OR, Sunday, August 9, 2026 through Monday, August 24, 2026 UTC

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• HAZARDS6/3128 2026-08-09 14:45Z – 2026-08-23 04:00Z SFC–11,000 ft

  15NM NW RENO, NV, Sunday, August 9, 2026 through Sunday, August 23, 2026 UTC

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• HAZARDS6/3157 2026-08-10 01:18Z – 2026-08-23 15:00Z SFC–7,500 ft

  8NM SE BIG SUR, CA, Monday, August 10, 2026 through Sunday, August 23, 2026 UTC

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• HAZARDS6/3159 2026-08-10 04:00Z – 2026-08-24 04:00Z SFC–11,500 ft

  6NM SW RENO, NV, Monday, August 10, 2026 through Monday, August 24, 2026 UTC

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• HAZARDS6/3162 2026-08-10 04:00Z – 2026-08-24 04:00Z SFC–9,500 ft

  15NM NW RENO, NV, Monday, August 10, 2026 through Monday, August 24, 2026 UTC

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• HAZARDS6/3165 2026-08-10 05:30Z – 2026-08-25 04:00Z SFC–11,000 ft

  15NM N KLAMATH FALLS, OR, Monday, August 10, 2026 through Tuesday, August 25, 2026 UTC

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• HAZARDS6/3168 2026-08-10 06:45Z – 2026-08-25 04:00Z SFC–10,500 ft

  40NM SE PORTLAND, OR, Monday, August 10, 2026 through Tuesday, August 25, 2026 UTC

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• HAZARDS6/3480 2026-08-10 18:36Z – 2026-08-23 15:00Z SFC–7,500 ft

  8NM SE BIG SUR, CA, Monday, August 10, 2026 through Sunday, August 23, 2026 UTC

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• HAZARDS6/3606 2026-08-10 21:45Z – 2026-08-24 04:00Z SFC–9,500 ft

  22NM NE RENO, NV, Monday, August 10, 2026 through Monday, August 24, 2026 UTC

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• HAZARDS6/3608 2026-08-10 23:00Z – 2026-08-25 04:00Z SFC–9,500 ft

  39NM NW JOHN DAY, OR, Monday, August 10, 2026 through Tuesday, August 25, 2026 UTC

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• HAZARDS6/3666 2026-08-11 02:00Z – 2026-08-26 05:00Z SFC–10,500 ft

  20NM SW THE DALLES, OR, Tuesday, August 11, 2026 through Wednesday, August 26, 2026 UTC

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• HAZARDS6/3717 2026-08-11 14:58Z – 2026-08-24 04:00Z SFC–9,500 ft

  15NM NW RENO, NV, Tuesday, August 11, 2026 through Monday, August 24, 2026 UTC

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• HAZARDS6/3763 2026-08-11 15:45Z – 2026-08-26 04:00Z SFC–10,500 ft

  20NM SW THE DALLES, OR, Tuesday, August 11, 2026 through Wednesday, August 26, 2026 UTC

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• HAZARDS6/4057 2026-08-11 22:45Z – 2026-08-26 04:00Z SFC–10,500 ft

  18NM NW JOHN DAY, OR, Tuesday, August 11, 2026 through Wednesday, August 26, 2026 UTC

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• HAZARDS6/4083 2026-08-12 00:30Z – 2026-08-26 04:00Z SFC–10,500 ft

  18NM NW JOHN DAY, OR, Wednesday, August 12, 2026 through Wednesday, August 26, 2026 UTC

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• HAZARDS6/4084 2026-08-12 00:45Z – 2026-08-27 04:00Z SFC–10,500 ft

  40NM SE PORTLAND, OR, Wednesday, August 12, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/4091 2026-08-12 01:45Z – 2026-08-27 04:00Z SFC–8,500 ft

  13NM S COTTAGE GROVE, OR, Wednesday, August 12, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/4094 2026-08-12 02:00Z – 2026-08-27 04:00Z SFC–10,500 ft

  18NM NW JOHN DAY, OR, Wednesday, August 12, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/4104 2026-08-12 04:00Z – 2026-08-25 04:00Z SFC–11,000 ft

  15NM NW RENO, NV, Wednesday, August 12, 2026 through Tuesday, August 25, 2026 UTC

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• HAZARDS6/4102 2026-08-12 14:00Z – 2026-08-27 04:00Z SFC–10,000 ft

  17NM NW CLE ELUM, WA, Wednesday, August 12, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/4110 2026-08-12 14:00Z – 2026-08-26 03:00Z SFC–12,500 ft

  12NM SE DRESSLERVILLE, NV, Wednesday, August 12, 2026 through Wednesday, August 26, 2026 UTC

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• HAZARDS6/4112 2026-08-12 14:00Z – 2026-08-27 04:00Z SFC–10,000 ft

  17NM NW CLE ELUM, WA, Wednesday, August 12, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/4585 2026-08-12 22:00Z – 2026-08-27 04:00Z SFC–9,500 ft

  38NM N THE DALLES, OR, Wednesday, August 12, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/4704 2026-08-13 00:30Z – 2026-08-27 04:00Z SFC–10,500 ft

  40NM SE PORTLAND, OR, Thursday, August 13, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/4729 2026-08-13 02:35Z – 2026-08-21 03:00Z SFC–10,500 ft

  10NM W LAKE TAHOE, CA, Thursday, August 13, 2026 through Friday, August 21, 2026 UTC

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• HAZARDS6/4725 2026-08-13 14:00Z – 2026-08-27 07:00Z SFC–9,000 ft

  24NM E PENDLETON, OR, Thursday, August 13, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/4957 2026-08-13 17:30Z – 2026-08-28 04:00Z SFC–10,500 ft

  18NM NW JOHN DAY, OR, Thursday, August 13, 2026 through Friday, August 28, 2026 UTC

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• HAZARDS6/5051 2026-08-14 00:45Z – 2026-08-29 03:00Z SFC–8,000 ft

  5NM E GRANTS PASS, OR, Friday, August 14, 2026 through Saturday, August 29, 2026 UTC

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• HAZARDS6/5053 2026-08-14 02:15Z – 2026-08-29 04:00Z SFC–11,000 ft

  15NM N KLAMATH FALLS, OR, Friday, August 14, 2026 through Saturday, August 29, 2026 UTC

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• HAZARDS6/5067 2026-08-14 02:15Z – 2026-08-27 04:00Z SFC–11,000 ft

  15NM NW RENO, NV, Friday, August 14, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/5072 2026-08-14 05:00Z – 2026-08-28 05:00Z SFC–8,000 ft

  5NM E GRANTS PASS, OR, Friday, August 14, 2026 through Friday, August 28, 2026 UTC

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• HAZARDS6/5070 2026-08-14 13:00Z – 2026-08-27 03:00Z SFC–8,500 ft

  8NM SE BIG SUR, CA, Friday, August 14, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/5097 2026-08-14 15:00Z – 2026-08-28 03:00Z SFC–9,000 ft

  42NM NW SPOKANE, WA, Friday, August 14, 2026 through Friday, August 28, 2026 UTC

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• HAZARDS6/5112 2026-08-14 16:30Z – 2026-08-29 03:00Z SFC–9,500 ft

  19NM NW JOHN DAY, OR, Friday, August 14, 2026 through Saturday, August 29, 2026 UTC

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• HAZARDS6/5135 2026-08-14 18:00Z – 2026-08-29 04:00Z SFC–13,500 ft

  26NM NW LEAVENWORTH, WA, Friday, August 14, 2026 through Saturday, August 29, 2026 UTC

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• HAZARDS6/5137 2026-08-15 04:00Z – 2026-08-27 15:00Z SFC–6,500 ft

  18NM NW JOHN DAY, OR, Saturday, August 15, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/5190 2026-08-15 04:00Z – 2026-08-29 04:00Z SFC–10,500 ft

  20NM SW THE DALLES, OR, Saturday, August 15, 2026 through Saturday, August 29, 2026 UTC

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• HAZARDS6/5170 2026-08-15 05:00Z – 2026-08-29 13:00Z SFC–6,000 ft

  7NM SW MEDFORD, OR, Saturday, August 15, 2026 through Saturday, August 29, 2026 UTC

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• HAZARDS6/5212 2026-08-15 15:00Z – 2026-08-30 04:00Z SFC–9,500 ft

  19NM NW JOHN DAY, OR, Saturday, August 15, 2026 through Sunday, August 30, 2026 UTC

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• HAZARDS6/5242 2026-08-15 23:15Z – 2026-08-29 04:00Z SFC–9,500 ft

  15NM NW RENO, NV, Saturday, August 15, 2026 through Saturday, August 29, 2026 UTC

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• HAZARDS6/5246 2026-08-16 02:15Z – 2026-08-30 04:00Z SFC–13,000 ft

  37NM SE SOUTH LAKE TAHOE, CA, Sunday, August 16, 2026 through Sunday, August 30, 2026 UTC

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• HAZARDS6/5252 2026-08-16 13:00Z – 2026-08-30 04:00Z SFC–13,000 ft

  37NM SE SOUTH LAKE TAHOE, CA, Sunday, August 16, 2026 through Sunday, August 30, 2026 UTC

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• HAZARDS6/5247 2026-08-16 14:00Z – 2026-08-31 04:00Z SFC–10,500 ft

  19NM N OMAK, WA, Sunday, August 16, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5245 2026-08-16 15:00Z – 2026-08-30 05:00Z SFC–12,000 ft

  47NM NE BELLINGHAM, WA, Sunday, August 16, 2026 through Sunday, August 30, 2026 UTC

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• HAZARDS6/5466 2026-08-17 05:00Z – 2026-08-31 05:00Z SFC–10,500 ft

  40NM SE PORTLAND, OR, Monday, August 17, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5470 2026-08-17 13:00Z – 2026-08-30 04:00Z SFC–11,000 ft

  13NM S CHRISTMAS VALLEY, OR, Monday, August 17, 2026 through Sunday, August 30, 2026 UTC

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• HAZARDS6/5801 2026-08-17 19:40Z – 2026-08-31 04:00Z SFC–10,500 ft

  40NM SE PORTLAND, OR, Monday, August 17, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5941 2026-08-18 04:00Z – 2026-08-31 04:00Z SFC–13,500 ft

  26NM NW LEAVENWORTH, WA, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5892 2026-08-18 04:00Z – 2026-08-31 13:00Z SFC–10,500 ft

  41NM SE PORTLAND, OR, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5938 2026-08-18 04:00Z – 2026-08-31 04:00Z SFC–7,000 ft

  ROGUE RIVER, OR, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5897 2026-08-18 14:00Z – 2026-08-31 02:00Z SFC–7,500 ft

  15NM NW RENO, NV, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5940 2026-08-18 15:00Z – 2026-08-31 04:00Z SFC–7,500 ft

  20NM E OKANOGAN, WA, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/6726 2026-08-20 03:15Z – 2026-09-03 04:00Z SFC–9,000 ft

  25NM E PENDLETON, OR, Thursday, August 20, 2026 through Thursday, September 3, 2026 UTC

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SkyMeter cross-referenced this flight against FAA-published TFRs that were active during its window and within its geographic bounding box. Overlap doesn't necessarily mean violation — the aircraft may have been outside the TFR’s precise polygon or flying under air-traffic-control coordination.

Automated analysis. Events shown on this page (such as go-around, unstable approach, or runway events) are heuristic classifications produced by algorithms from publicly broadcast ADS-B data. They are intended to surface flights of interest for further review — they are not findings of fact, and they do not determine pilot fault, regulatory compliance, or the cause of any occurrence. Coverage gaps and sensor noise can affect accuracy. Only the relevant civil aviation authority or accident investigation body can make official determinations. How we detect events · Dispute or correct this data