Short answer
On 13 March 1997, thousands of people across Arizona reported lights or a large V- or delta-shaped formation over the Phoenix area. Investigators and the Air National Guard later linked the widely filmed ~10 p.m. lights to illumination flares; many witnesses still treat the earlier ~8 p.m. craft reports as unresolved.
What happened
Type: Mass sighting (lights and craft reports). Date: 13 March 1997. Location: Phoenix metro and a long north-south corridor across Arizona.
Witnesses described two main clusters. In the early evening, many reported a silent V- or boomerang formation - sometimes interpreted as one huge craft - moving slowly. Around 10 p.m., bright lights in a row appeared southwest of Phoenix and were widely videotaped. Then-Gov. Fife Symington later said he personally saw a massive delta-shaped object near Squaw Peak while looking for the distant lights.
Evidence and mainstream view
Evidence level: B. Mainstream consensus: the filmed late-evening lights are generally explained as Operation Snowbird A-10 illumination flares over the Barry M. Goldwater Range; early-evening craft reports remain contested without recovered hardware.
| Claim | Mainstream view |
|---|---|
| One enormous alien mothership over Phoenix | Late lights fit flares beyond the Estrellas; early reports are a separate debate |
| Flares explain every report that night | Strong for ~10 p.m. videos; weaker for ~8 p.m. silent craft claims |
| Symington's admission proves ET craft | High-profile testimony; not physical confirmation |
| Nothing conventional could look that large and silent | Distance, formation lights, and flare optics can mislead |
Timeline
- 1997-03-13 — Mass evening reports of V/delta formations, then ~10 p.m. bright lights captured on video across the valley.
- 1997-06-19 — Gov. Symington stages an alien-costume press-conference spoof after joking about an inquiry (AP / LA Times).
- 1997-07 — Air National Guard confirms A-10 flare drops matching the late-light geometry (Las Vegas Sun / Arizona Republic).
- 2007-11 — Symington's CNN commentary describes his personal unexplained delta-shaped craft sighting.
Explanations
Mainstream: Two Operation Snowbird-related events - aircraft formation lights earlier, LUU-2B/B flares later.
Alternative: A large unidentified craft (or formation) distinct from the flares, especially for early-evening silent V/delta reports.
Disputed: Collective blending of two mundane events into one legendary "Phoenix Lights" narrative.
Case accounts
Attributed case cards for the corridor sightings, flare video cluster, and Symington's account are rendered above from frontmatter, each with source links. Cards summarize what named sources claim; they do not verify extraterrestrial craft.
Related phenomena
- Project Blue Book - historical USAF UFO investigation program
- Flight 19 - famous unexplained aviation loss later woven into anomaly lore
- Wow! Signal - another single-night high-profile anomaly
- ʻOumuamua - scientific "unidentified" object with mainstream natural models
- Cross-category craft ID: Tic Tac UFO
FAQ
What were the Phoenix Lights? A set of mass Arizona sightings on 13 March 1997 - early V/delta reports and later bright lights that officials link to military flares.
Were the Phoenix Lights flares? The widely filmed ~10 p.m. lights are widely attributed to A-10 illumination flares. Early-evening craft reports are a separate contested cluster.
Did the governor see a UFO? Fife Symington later wrote that he saw a massive unexplained delta-shaped craft. That is attributed personal testimony, not official confirmation of origin.
Was it one event or two? Most investigators separate an ~8 p.m. formation/craft wave from a ~10 p.m. light-row event later tied to flares.
Is there physical evidence of a craft? No recovered vehicle. Evidence consists of witness reports, videos of lights, and military training records for flares.
How is this graded? Evidence level B - multiple independent reports and videos, with a strong conventional explanation for the late lights and unresolved debate on early reports.
Sources
Linked citations appear in the Sources panel below this article.