Forecast for Wednesday, January 18

Issued: Tuesday, January 17 Launch Weather Officer: 45th Weather Squadron Synoptic Discussion: "A cold front will continue to approach the Central peninsula through the evening hours with frontal passage expected during the early morning hours. Expect gusty winds through the evening and early morning hours associated with the frontal passage. After frontal passage, expect a clearing trend in the afternoon with a gradual decrease in wind speeds. "The primary concerns for tomorrow's launch are thick clouds and ceilings associated with the timing uncertainly of the frontal passage. "In the event of a 24 hour delay, the peninsula will be under high pressure with fair skies and Easterly winds at 12 to 18 knots. The primary concern for a 24 hour delay, although small, are low ceilings associated with Easterly flow." Clouds: Strato-Cumulus Scattered at 2,500 feet with tops at 4,500 feet; Alto Stratus Scattered at 8,000 feet with tops at 10,000 feet; and Cirrus Broken at 25,000 feet with tops at 28,000 feet Visibility: 7 miles Launch Pad Winds: Northwesterly from 300 degrees at 18 gusting to 28 knots Temperature: 55-57 degrees F Relative Humidity: 60 percent Weather: Isolated Coastal Showers Solar Activity: Low Probability of Violating Weather Constraints: 30 percent Concerns: Thick clouds and ceiling with frontal passage

Forecast for 24-hour delay

Thursday's Probability of Violating Constraints: 10 percent Concerns: Ceilings with easterly flow

Times of note

Wednesday's launch window: 1:16-3:15 p.m. EST (1816-2015 GMT) Thursday's launch window: 1:08-3:07 p.m. EST (1808-2007 GMT)