High-altitude winds over the Spaceport in French Guiana have resulted in the decision by Arianespace and the European Space Agency to postpone tonight’s Vega mission with three satellite payloads and ALTS subsystem manufactured by  TEMIS.A new launch date will be decided based on the evolution of the weather conditions....

From ArianeSpace press release:Arianespace VV02 – Proba-V, VNREDSat-1 and ESTCube-1: Launch postponed by 24 hoursEvry, April 25, 2013To carry out additional checks on the mobile gantry system used on the Vega launch complex (SLV), the European Space Agency (ESA) and Arianespace have decided to postpone the Vega launch VV02 for 24 hours. It was originally scheduled for the night of May 2 to 3.Liftoff is scheduled for the night of May 3 to 4, 2013, at exactly:11:06:31 pm (local time...