yee@trident.arc.nasa.gov (Peter E. Yee) (05/18/91)
TO: PIOS/PRESS
FROM: George Diller/NASA-KSC
407-867-2468/FTS 823-2468
Launch Complex 39
L-5 Day Weather Outlook for STS-40
Conditions expected on Sunday, 5/22/91
Synopsis: Upper level high pressure ridge and surface high
pressure will dominate Cape Canaveral area weather. The only
concern is the chance of an isolated morning shower moving
onshore from the Atlantic ocean.
At 8:00 a.m. on Wednesday morning conditions are forecast to be:
Clouds: 3,000 to 6,000 scattered cumulus (20% sky cover)
Visibility: 7+ miles
Wind - Pad 39B: E-8 knots, gusts 12 knots
Temperature: 72 degrees
Dewpoint: 70 degrees
Humidity: 88%
Precipitation: slight chance of an isolated shower
Probability of launch weather criteria violation at the beginning
of the launch period: 20%
Probability of launch weather criteria violation over the
duration of the launch period: 10%
Probability of tanking constraint violation: 0%
Chance of violation at launch time on Thursday: 20%
overall window 10%
Friday: 20%
overall window: 10%
Developed by Cape Canaveral Forecast Facility
USAF Air Weather Service 5/17/91