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Starlink 6-88 - L-1 Day

Falcon 9

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Valid Period

Jan 4, 2026 05:00 - 08:17 UTC (00:00 - 03:17 ET)

Issued

Sat Jan 3, 2026 at 17:00 UTC (12:00 ET)

Forecast Discussion

Space Launch Delta 45

Forecast Discussion: An upper-level trough and surface low will drag through the Deep South today and emerge into the western Atlantic off the Carolina/Georgia coastline by nighttime. The associated cold front will unfortunately move through Central Florida during the launch window. Model solutions have great agreement on timing with the worst weather likely occurring at the front of the window, as band of showers (that likely triggers the Cumulus Cloud Rule) moves through around midnight. There is also good model agreement for improvement into the window, with lingering thick clouds being the main concern by the end. POVs on both ends of the window have been adjusted accordingly as a result. Winds will also be gusty but likely below threshold. For the backup launch opportunity Sunday night, the Space Coast will be post-frontal, but lingering mid-level clouds from the Atlantic may drift onshore with the north-northeasterly wind flow. This may trigger a thick cloud threat, though clouds will be scattered in nature.

Primary Launch Date

Launch Day

Primary Window

30%70%
PGO

Primary Concerns

  • Cumulus Cloud Rule
  • Thick Cloud Layers Rule

Additional Risk Criteria

CriteriaRisk Level
Upper-Level Wind ShearLow-Mod
Booster Recovery WeatherLow
Solar ActivityLow

Backup Opportunities

24-Hour Delay

Backup Window

75%
PGO

Primary Concerns

  • Thick Cloud Layers Rule

Additional Risk Criteria

CriteriaRisk Level
Upper-Level Wind ShearLow
Booster Recovery WeatherLow
Solar ActivityLow