Forecast for Wednesday, May 24

Issued: Wednesday, May 24 Launch Weather Officer: 45th Weather Squadron Synoptic Discussion: " Main issues for today will be the cloud thickness (greater than 4,500 feet) of the mid and upper level cloudiness advecting across the Florida Peninsula. In addition to cloud thickness, any thunderstorms that may develop could result in thunderstorm anvil clouds moving over the area as well. The other main concern continues to be winds greater than 15 knots during the last 5 minutes of the countdown. Vehicle exposure concerns continue to be to be low but will be monitored closely." Clouds: Cumulus Scattered at 3,000 feet with tops at 8,000 feet; Altocumulus Broken at 10,000 feet with tops at 14,000 feet; and Cirrus Broken at 20,000 feet with tops at 22,000 feet Visibility: 10 miles Launch Pad Winds: East-Southeasterly from 100 degrees at 8 to 14 knots Temperature: 82-84 degrees F Relative Humidity: 60 percent Weather: Scattered showers / Isolated thunderstorm in vicinity Solar Activity: Low Probability of Violating Weather Constraints: 40 percent Concerns: Launch winds (at 54-foot level), thick cloud rule, anvil cloud rule

Forecast for 24-hour delay

Thursday's Probability of Violating Constraints: 40 percent Concerns: Anvil cloud rule, cumulus cloud rule, launch winds (at 54-foot level)

Times of note

Wednesday's launch window: 6:11-7:11 p.m. EDT (2211-2311 GMT) Thursday's launch window: 6:11-7:11 p.m. EDT (2211-2311 GMT)