STS-117 Launch Weather Forecast
Vehicle: STS-117, Atlantis
Issued: 7 June 2007/ 1100Z (0700EDT)
Valid: 8 June 2007/ 2332 - 2343Z (1932 - 1943EDT)
Launch Weather Team: 45th Space Wing, Patrick AFB, FL
A high pressure ridge is now located over Central Florida. A sea breeze will develop this afternoon earlier than yesterday. Showers and thunderstorms will develop along the sea breeze on the west side of Kennedy Space Center. These storms should gradually move west along the sea breeze by late afternoon/early evening.
By Friday, the high pressure ridge will be north of the Central Florida area, allowing the sea breeze with associated weather to push inland more quickly by the late afternoon. Upper level winds will be from the east Friday, so anvils from inland thunderstorms should remain inland by launch time. There is a better chance the ridge will remain to the north Saturday; therefore, the 24-hour forecast deceased to 30%.
Our primary concern for launch day is cumulus clouds.
Clouds Coverage Bases (feet) Tops (feet) Stratus 3/8 Scattered 3,000 6,000 Altostratus 2/8 Scattered 10,000 12,000 Cirrus 2/8 Scattered 25,000 28,000 Weather: None Visibility: 7 miles Wind: 100 deg @ 8 KT Peak 12 KT (60 foot pad winds) Temperature: 77 F RH: 85% Dewpoint: 73 F Probability of KSC weather prohibiting launch: 20% Probability of KSC weather prohibiting tanking: 0% Primary concern(s): Cumulus clouds. Probability of KSC weather prohibiting launch for 24-hour delay 30% Probability of KSC weather prohibiting tanking: 5% Primary concern(s): Thunderstorms, flight through precipitation, cumulus clouds. Probability of KSC weather prohibiting launch for 48-hour delay 40% Probability of KSC weather prohibiting tanking: 5% Primary concern(s): Thunderstorms with associated anvils, cumulus clouds. Sunrise: 8/0624 EDT Sunset: 8/2019 EDT 9/0624 EDT 9/2019 EDT 10/0624 EDT 10/2020 EDT Moonrise: 8/0132 EDT Moonset: 8/1333 EDT Illumination: 8 Jun: 56% 9/0204 EDT 9/1437 EDT 9 Jun: 44% 10/0236 EDT 10/1542 EDT 10 Jun: 33% Next forecast will be issued: As Needed