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Starlink-L22 - L-3 Days

Falcon 9

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Valid Period

Mar 24, 2021 08:28 - 09:29 UTC (04:28 - 05:29 ET)

Issued

Sun Mar 21, 2021 at 13:00 UTC (09:00 ET)

Forecast Discussion

Space Launch Delta 45

Surface cold front that moved through the area this morning will continue to move off to the east over the next few days. As this happens, high pressure is forecast to rebuild across the central and southern portion of the Florida peninsula. This will bring onshore winds back into the area and will start to increase low level moisture across the Space Coast region. Winds are not expected to be particularly strong on the primary launch day as southeast winds are only expected to be in the 5 to 10 mph range. The primary concern for launch day is the Cumulus Cloud Rule. In the event of a 24-hour delay, winds begin to increase as the surface pressure gradient begins to increase over the Space Coast. Continued onshore low level winds will also increase moisture and cloud cover as well. Southeast winds are expected to be in the 12 to 17 mph range with isolated gusts to perhaps 20 mph possible. The primary concern will be Liftoff Winds as well as the Cumulus Cloud Rule.

Primary Launch Date

Launch Day

Primary Window

90%
PGO

Primary Concerns

  • Cumulus Cloud Rule

Additional Risk Criteria

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

Backup Opportunities

24-Hour Delay

Backup Window

90%
PGO

Primary Concerns

  • Liftoff Winds
  • Cumulus Cloud Rule

Additional Risk Criteria

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