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Starlink 6-40 - L-1 Day

Falcon 9

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Valid Period

Feb 29, 2024 15:30 - 17:30 UTC (10:30 - 12:30 ET)

Issued

Wed Feb 28, 2024 at 16:00 UTC (11:00 ET)

Forecast Discussion

Space Launch Delta 45

After another day of benign weather today, cloud cover will increase as a weak boundary approaches central Florida from the north tomorrow morning. A narrow band of light showers will form along the boundary, but any showers that develop will likely be too shallow to cause a weather violation due to very dry air in the mid-levels. There will also be a deck of upper-level cirrus associated with the jet stream, but this cloud layer will be too high to be a significant thick cloud concern. Additionally, today’s hi-res model runs are indicating increasing wind gusts behind the boundary, but there is uncertainty regarding the timing and magnitude of the wind surge. Thus, the main concerns for the primary attempt are the Cumulus Cloud Rule violation due to isolated showers and Liftoff Winds. Conditions become more unfavorable for the backup window on Friday, as the cirrostratus layer thickens and decreases in altitude. This introduces the risk for a thick cloud concern in addition to any Atlantic low-topped showers. The POV increases on the backup day, with the primary risks being the Thick Cloud Layers Rule and Cumulus Cloud Rule.

Primary Launch Date

Launch Day

Primary Window

85%
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

65%
PGO

Primary Concerns

  • Thick Cloud Layer Rule
  • Cumulus Cloud Rule

Additional Risk Criteria

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