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Starlink 10-54 - L-1 Day
Falcon 9
Valid Period
Jun 12, 2026 12:27 - 16:27 UTC (08:27 - 12:27 ET)
Issued
Thu Jun 11, 2026 at 12:15 UTC (08:15 ET)
Forecast Discussion
Space Launch Delta 45
Forecast Discussion: Surface high pressure off the MidAtlantic coast will continue onshore flow today. By the end of the week, the ridge will build further south, helping to switch morning flow to become light southwesterly Friday and Saturday. This should lead to a lower coverage of showers and thunderstorms in the mornings, with an increasing risk towards the late morning and afternoon. If the ridge is slower to build south, southeasterly flow could linger and increase chances of precipitation Friday. Given this possibility, there is a slightly higher risk of a Cumulus Cloud Rule violation on Friday compared to Saturday.
Primary Launch Date
Launch Day
Primary Window
80%↓70%
Primary Concerns
- Cumulus Cloud Rule
Additional Risk Criteria
| Criteria | Risk Level |
|---|---|
| Booster Recovery Weather | Low |
| Solar Activity | Low |
Backup Opportunities
24-Hour Delay
Backup Window
85%
Primary Concerns
- Cumulus Cloud Rule
Additional Risk Criteria
| Criteria | Risk Level |
|---|---|
| Booster Recovery Weather | Low |
| Solar Activity | Low |