Before revision: within of an attached thunderstorm anvil cloud within of disturbed weather clouds that extend into freezing temperatures within of a thunderstorm debris cloud, through cumulus clouds formed as the result of or directly attached to a smoke plume, The following should delay launch: delay launch for 15 minutes if field mill instrument readings within of the launch pad exceed +/- 1,500 volts per meter, or +/- 1,000 volts per meter delay launch for 30 minutes after lightning is observed within of the launch pad or the flight path Space shuttle |150px Weather The weather conditionsSpace Shuttle Weather Launch Commit Criteria and KSC End of Mission Weather Landing Criteria NASA requires during countdown and launch are specified for "prior to loading external tank propellant" and "after loading propellant has begun".
After revision: within of an attached thunderstorm anvil cloud within of disturbed weather clouds that extend into freezing temperatures within of a thunderstorm debris cloud, through cumulus clouds formed as the result of or directly attached to a smoke plume, The following should delay launch: delay launch for 15 minutes if field mill instrument readings within of the launch pad exceed +/- 1,500 volts per meter, or +/- 1,000 volts per meter delay launch for 30 minutes after lightning is observed within of the launch pad or the flight path Space shuttle |150px Weather The weather conditionsSpace Shuttle Weather Launch Commit Criteria and KSC End of Mission Weather Landing Criteria NASA required during countdown and launch were specified for "prior to loading external tank propellant" and "after loading propellant has begun".