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CRS-34 - L-1 Day

Falcon 9

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Valid Period

May 13, 2026 22:40 - 23:00 UTC (18:40 - 19:00 ET)

Issued

Tue May 12, 2026 at 21:00 UTC (17:00 ET)

Forecast Discussion

Space Launch Delta 45

Forecast Discussion: Widespread showers and thunderstorms will continue over central Florida this evening as a frontal boundary progresses southward. Tomorrow, rain chances continue to be elevated as the boundary lingers to the south. Afternoon showers and thunderstorms are possible along the east coast, causing potential Cumulus Cloud Rule, Anvil Cloud Rule and Surface Electric Field Rule violations. A mid-level drying trend will continue for Thursday and Friday as high pressure builds and onshore flow settles in. Concerns will primarily be for the Cumulus Cloud Rule for both backup opportunities.

Primary Launch Date

Launch Day

Primary Window

60%
PGO

Primary Concerns

  • Cumulus Cloud Rule
  • Anvil Cloud Rules
  • Surface Electric Fields Rule

Additional Risk Criteria

CriteriaRisk Level
Booster Recovery WeatherLow
Solar ActivityLow

Backup Opportunities

24-Hour Delay

Backup Window

90%
PGO

Primary Concerns

  • Cumulus Cloud Rule

Additional Risk Criteria

CriteriaRisk Level
Booster Recovery WeatherLow
Solar ActivityLow
48-Hour Delay

Backup Window

90%
PGO

Primary Concerns

  • Cumulus Cloud Rule

Additional Risk Criteria

CriteriaRisk Level
Booster Recovery WeatherLow
Solar ActivityLow