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Viasat 3F3 -
Falcon Heavy
Valid Period
Apr 27, 2026 14:14 - 15:59 UTC (10:14 - 11:59 ET)
Issued
Sun Apr 26, 2026 at 13:00 UTC (09:00 ET)
Forecast Discussion
Space Launch Delta 45
Forecast Discussion: A Carolina Low is expected to push a weak back door cold front through central Florida early Monday morning. With the primary window opening around the time the sea breeze will develop, the position of that frontal boundary will determine if clouds are enhanced over the Spaceport. The most likely impact for the primary window will be the Cumulus Cloud and Surface Electric Fields Rules. By the backup day, onshore flow associated with high pressure to the north should bring generally favorable conditions and the primary concern will be brief periods of flight-through Cumulus Cloud Rule violations.
Primary Launch Date
Launch Day
Primary Window
70%
Primary Concerns
- Cumulus Cloud Rule
- Surface Electric Fields Rule
Additional Risk Criteria
| Criteria | Risk Level |
|---|---|
| Booster Recovery Weather | Low |
| Solar Activity | Low |
Backup Opportunities
24-Hour Delay
Backup Window
90%
Primary Concerns
- Cumulus Cloud Rule
Additional Risk Criteria
| Criteria | Risk Level |
|---|---|
| Booster Recovery Weather | Low |
| Solar Activity | Low |