STS-59 LAUNCH DAY WEATHER FORECAST

                STS-59 LAUNCH WEATHER FORECAST
                         FOR APRIL 8

              Prepared on L-1 day, April 7, 1994

George H. Diller
NASA Kennedy Space Center

Synopsis:  A cold front will become stationary in south Florida
generally along a Miami-Ft. Myers line.

During the launch opportunity extending from 7:06-10:36 a.m. on
Friday morning the range of conditions is forecast to be:

Clouds:  3,000-6,000 feet broken stratocumulus
          (50%-70% coverage)
         6,000-8,000 feet scattered to broken stratocumulus
          (50%-70% coverage)
         25,000-30,000 cirrostratus
          (70% coverge)

Visibility: 7 miles

Wind - Pad 39A: NE/10-15 knots becoming 14-20 knots after 9 a.m.

Temperature:  67-73 degrees

Dewpoint:     60-58 degrees

Humidity:     78-60%

Precipitation: chance of showers

Other weather concerns: Chance of ceiling below 8,000 feet.
                        Chance of exceeding RTLS crosswind limit.

Probability of launch weather criteria violation: 60%
Probability of launch weather criteria violation on Saturday: 40%

Sunrise Friday: 7:05 a.m.
Sunset  Friday: 7:44 p.m.

Todays's minimum temperture at KSC: 71 degrees
Yesterday's maximum temperature: 86 degrees
Peak wind at KSC yesterday: SE-23 mph
24 hr. precipitation through 7 a.m. today: .02"

Forecast developed at USAF Range Weather Operations Facility
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