Space weather / EVENT RECORD

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu

NOAA SWPC · Every measurement below belongs to the selected record.

Bulletin issued

2026-09-28 05:00:40.090Z

Source update / publication

2026-09-28 05:00:40.090Z

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu · Continuation of Serial Number: 3746 · Begin Time: 2026 Sep 26 1535 UTC · Yesterday Maximum 2MeV Flux: 3060 pfu · Max time: 2026 Sep 27 1720 UTC

This is a source-linked archive. Source measurements and assessments can change. An archived bulletin is not evidence that a warning is currently active.

In the daily journal

SOURCE ID swpc:EF3A:2026-09-28T05:00:40.090Z