NASA Crew-12 - L-2 Forecast

Forecast Discussion: The launch site forecast is generally favorable for Friday morning’s window, but ascent corridor conditions will be a watch item. After another dry day today, a weak cold front will approach from the north tomorrow, slightly increasing moisture and shower chances in the afternoon. By Friday morning, the front is expected to wash out and stall over East Central Florida. While most of the precipitation is expected to remain offshore, there is a low chance of isolated showers along the coast. This introduces a Cumulus Cloud Rule and Flight Through Precipitation risk for Friday morning’s attempt. The other concern is elevated wind speeds along certain points of the ascent corridor due to several areas of low pressure in the Atlantic. Over the weekend, a low will develop over the central US and eventually drag a cold front into the Southeast. On Sunday morning, south/southeasterly flow ahead of the front will bring isolated coastal showers as well as a low Thick Cloud concern due to cirrostratus streaming in from the west. The front is expected to move through the area on Sunday night or early Monday morning, but there is high uncertainty in the exact timing of its passage. Ascent corridor conditions will also deteriorate Sunday into Monday as the low moves into the Atlantic.