Back to Forecasts

Starlink 4-35 - L-1 Day

Falcon 9

View PDF

Valid Period

Sep 24, 2022 23:27 - 01:45 UTC (19:27 - 21:45 ET)

Issued

Fri Sep 23, 2022 at 12:00 UTC (08:00 ET)

Forecast Discussion

Space Launch Delta 45

As Hurricane Fiona races northwards, a trailing band of convergence has developed from it and in front of a high pressure system moving into the eastern US. This frontal band will push through the Space Coast today, producing some isolated showers and bringing gusty northeasterly winds. The band should stay south of the Spaceport Saturday as high pressure builds in, allowing winds to diminish. The primary weather concerns for a Saturday evening launch attempt are the Cumulus Cloud Rule and Liftoff Winds associated with the frontal band. On Sunday, the frontal band will push back northwards, bringing the showers activity closer to the Spaceport. Although the winds will be weaker, this will keep Cumulus Cloud Rule as a concern with the addition of the Disturbed Weather Rule in the event the band makes it completely over the Spaceport.

Primary Launch Date

Launch Day

Primary Window

80%
PGO

Primary Concerns

  • Cumulus Cloud Rule
  • Liftoff Winds

Additional Risk Criteria

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

Backup Opportunities

24-Hour Delay

Backup Window

70%
PGO

Primary Concerns

  • Cumulus Cloud Rule
  • Disturbed Weather Rule

Additional Risk Criteria

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