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GPS III-8 - L-2 Days

Falcon 9

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Valid Period

Apr 20 - Apr 21, 2026

Issued

Sun Apr 19, 2026 at 17:00 UTC (13:00 ET)

Forecast Discussion

Space Launch Delta 45

Forecast Discussion: A cold front will develop isolated to scattered showers and thunderstorms as early as this afternoon and remain possible through Monday afternoon as it moves southeast across central FL. Winds will strengthen tonight, and peak Monday afternoon behind the front. Winds will diminish late Monday into Tuesday, with only a small risk of a Cumulus Cloud Rule or Thick Cloud Layers Rule violation during the primary and backup launch opportunities.

Primary Launch Date

Launch Day

Primary Window

85%
PGO

Primary Concerns

  • Cumulus Cloud Rule
  • Thick Cloud Layers Rule

Additional Risk Criteria

CriteriaRisk Level
Booster Recovery WeatherLow
Solar ActivityLow

Backup Opportunities

24-Hour Delay

Backup Window

85%
PGO

Primary Concerns

  • Cumulus Cloud Rule
  • Thick Cloud Layers Rule

Additional Risk Criteria

CriteriaRisk Level
Booster Recovery WeatherLow
Solar ActivityLow