RRT-1 - L-1 Day

Strong onshore flow with coastal showers will be the weather pattern for the launch and backup days after a cold front passed through yesterday. Behind the front, a very strong area of high pressure is building into the eastern US, creating a very tight pressure gradient through the end of the week and into the weekend. This will bring elevated east-northeasterly winds along with isolated coastal showers tomorrow evening. Dry mid-level air will cap off any significant vertical development of the showers, limiting them to only a flight through concern. Because of this, the primary concerns are low-level winds approaching liftoff limits and the Cumulus Cloud Rule. Conditions look very similar for the backup day, but a surface trough in the southwestern Atlantic will bring elevated moisture to the region. Shower coverage will likely be higher and there will be less mid-level dry air to cap vertical development. Thus, the concerns remain the same with an increased probability of violation.