Orb-2 Latest Forecast: Still 90% ‘Go’

The Weather Office at NASA’s Wallops Flight Facility in Virginia reports that the forecast remains 90-percent favorable for the Orb-2 Antares rocket launch from the Mid-Atlantic Regional Spaceport’s Launch Pad 0A at Wallops. Launch is scheduled for July 13 at 12:52 p.m. EDT.

The main weather concern for the launch appears to be a very slight chance of convective clouds (cumulus) near the vehicle path.

High pressure begins to build off the Northeast coast this evening, while an upper-level trough starts to dig over the Great Lakes by Sunday morning. High pressure off the eastern seaboard will remain in control of the Wallops region on Sunday afternoon with dry and slightly breezy conditions, as an upper-level disturbance and cold front moves into the western portion of the Mid-Atlantic. The upper-level disturbance and cold front will move toward the Wallops region on Monday, with a slight chance of showers and thunderstorms by early afternoon Monday, and a better chance of showers and storms by Monday evening.

Should the launch slip to Monday, July 14, the current forecast reports 70-percent favorable weather. Weather concerns for a Monday launch are, at present, convective clouds, disturbed weather and wind.

› NASA’s Orbital website
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› Launch viewing maps from Orbital Sciences Corp.
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