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Leo 5 - L-1 Day

Atlas V

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Valid Period

Apr 4, 2026 05:45 - 06:15 UTC (01:45 - 02:15 ET)

Issued

Fri Apr 3, 2026 at 11:30 UTC (07:30 ET)

Forecast Discussion

Space Launch Delta 45

Forecast Discussion: High pressure will linger over the Western Atlantic through the weekend, bringing onshore, easterly flow to Central Florida through the period. Light showers could move over the Spaceport at times this weekend, with the best chance being in the late morning and early afternoon there is a small chance of Cumulus Cloud Rule violations for the primary and back-up launch opportunities.

Primary Launch Date

Launch Day

Primary Window

90%
PGO

Primary Concerns

  • Cumulus Cloud Rule

Additional Risk Criteria

CriteriaRisk Level
Solar ActivityLow

Backup Opportunities

24-Hour Delay

Backup Window

90%
PGO

Primary Concerns

  • Cumulus Cloud Rule

Additional Risk Criteria

CriteriaRisk Level
Solar ActivityLow