The x 37b launch 2nd flight

The Complex 41 pad and the blast danger area have been cleared of all workers for the remainder of the countdown.

1800 GMT (1:00 p.m. EST)

T-minus 2 hours and holding. The countdown has just entered the first of two planned holds over the course of the afternoon that will lead to the 3:50 p.m. EST launch of the Atlas rocket. This initial pause lasts 30 minutes, giving the team some margin in the countdown timeline to deal with technical issues or any work that is running behind. The final hold is scheduled to occur at T-minus 4 minutes and will last for 20 minutes.

1750 GMT (12:50 p.m. EST)

The current hope is the cloud and electrical concerns should clear by about 3:15 p.m. EST, forecasters are projecting. But as the showers move out, the winds will increase and become a possible concern. Overall, there's still only a 30 percent chance of acceptable weather for launch today.