This work, will investigate the correlation between Neutron Monitor counts rates and solar wind speed and proton density from both Advanced Composition Explorer (ACE) satellite, and radiation belt density from the Radiation Belt Storm Probes (RBSP) satellites, during the coronal mass ejection (CME) events and quiet time. If the correlation exists, then it may be possible to use Neutron Monitor data in the future for the forecast the timing and level of ionizing radiation in the troposphere and the arrival time of the CME.