Forecast for Sunday, April 6

Issued: Thursday, April 3 Launch Weather Officer: Johnny Weems, 45th Weather Squadron Synoptic Discussion: "High pressure, surface and aloft, will produce near perfect conditions today. Increasing tropical moisture, onshore winds, warming temperatures, and an approaching upper level disturbance will increase probability of afternoon showers Friday through Sunday. An approaching front Monday through Wednesday will enhance the chance of widespread precipitation, including thunderstorms. "The greatest concerns for Sunday morning's attempt will be layered clouds and precipitation. Chance of thunderstorms Saturday afternoon/evening could impact launch preparations." Clouds: Scattered at 3,000 feet with 2-3/8ths sky coverage and tops at 5,000 feet; Scattered-to-broken at 14,000 feet with 4-5/8ths sky coverage and tops at 18,000 feet; and Broken at 26,000 feet with 3-4/8ths sky coverage and tops at 29,000 feet Visibility: 7 miles Launch Pad Winds: Southeasterly from 140 degrees at 8 gusting to 12 knots Temperature: 72 degrees F Relative Humidity: 70 percent Weather: Isolated showers Solar Weather Activity: Low Probability of Violating Weather Constraints: 30 percent Concerns: Layered clouds and precipitation

24- and 48-hour Delay Forecasts

Monday's Probability of Violating Constraints: 60 percent Concerns: Showers, layered clouds and thunderstorm/anvils Tuesday's Probability of Violating Constraints: 60 percent Concerns: Showers, layered clouds and thunderstorm/anvils