NASA Crew-2 - L-2 Days
Falcon 9
Valid Period
Apr 22, 2021 10:07 - 10:17 UTC (06:07 - 06:17 ET)
Issued
Tue Apr 20, 2021 at 10:30 UTC (06:30 ET)
Forecast Discussion
Rain showers and isolated thunderstorms are likely again today as the boundary remains stalled across Central Florida. On Wednesday, high pressure will build in and push the unsettled weather south through the day. By Thursday morning, the high pressure will be centered near Arkansas, creating gusty northerly winds along the Space Coast due to the pressure gradient between the high and the departing boundary. The primary weather concern Thursday morning will be these gusty Liftoff Winds associated with this strong pressure gradient. By Friday morning, the high center will move over the Carolinas, allowing winds to diminish and turn easterly over the Spaceport. The primary launch weather concern for a Friday morning attempt will be Flight Through Precipitation with very isolated, low-topped coastal showers associated with the onshore flow.
Primary Launch Date
Primary Window
Primary Concerns
- Liftoff Winds
Additional Risk Criteria
| Criteria | Risk Level |
|---|---|
| Upper-Level Wind Shear | Moderate |
| Booster Recovery Weather | Moderate |
| Solar Activity | Low |
Backup Opportunities
Backup Window
Primary Concerns
- Flight Through Precipitation
Additional Risk Criteria
| Criteria | Risk Level |
|---|---|
| Upper-Level Wind Shear | Low |
| Booster Recovery Weather | Low |
| Solar Activity | Low |