Forecast for Monday, April 14

Issued: Sunday, April 13 Launch Weather Officer: 45th Weather Squadron Synoptic Discussion: "A cold front will transit Central Florida today with cloudy conditions and lingering showers through much of the day. There is a very small threat of lightning associated with the frontal boundary through Sunday afternoon. "For MLP roll Sunday morning, winds are expected to be gusting in the upper teens to low 20s by late morning with gusts in the low to mid 20s during the exposure period overnight. "For launch day, the cold front is to the South with high pressure building into the peninsula. Winds are expected to remain below the liftoff constraint of 29 kts through the day gusting in the low to mid 20s during the window. Remnant moisture from the frontal boundary continues a small threat of a thick cloud rule violation. The primary concerns for launch day are gusty winds and a risk of thick clouds associated with the proximity of the front to the South. "In the event of a 24 hour delay, a secondary surge of gusty winds associated with a strengthening low pressure system in the Atlantic results in gusty winds late Monday and persisting through Wednesday. There is a threat of a thick cloud and disturbed weather rule violation associated with isolated showers over the Atlantic." Clouds: Cumulus scattered at 4,000 feet with tops at 7,000 feet; and Cirrus scattered at 30,000 feet with tops at 35,000 feet Visibility: 7 miles Launch Pad Winds: Westerly from 280 degrees at 16 to 24 knots Temperature: 70-71 degrees F Relative Humidity: 70 percent Solar Activity: Low Probability of Violating Weather Constraints: 40 percent Concerns: Ground winds and thick clouds

Forecast for 24-hour delay

Tuesday's Probability of Violating Constraints: 60 percent Concerns: Ground winds and thick clouds

Times of note

Monday's launch window: 4:12 to 5:12 p.m. EDT Tuesday's launch window: 4:08 to 5:08 p.m. EDT