During CP La Niña, the magnitude of the below average mean precipitation exceeds the magnitude of the precipitation spread, thereby conditioning the probability of above tercile Southwest Asia precipitation to greater than 70%. By contrast, EP La Niña does not alter the odds of Southwest Asia precipitation terciles, as the magnitude of the near-zero mean precipitation is overwhelmed by the magnitude of the precipitation spread. EP and CP El Niño similarly result in above average mean precipitation whose magnitude approaches the magnitude of the precipitation spread, thereby conditioning the probability of upper tercile Southwest Asia precipitation to around 50% region-wide. However, the notable effect of the precipitation spread during El Niño allows for a 20-30% probability that the regional precipitation falls into the lower tercile. Results suggest that the tropical eastern Indian Ocean atmosphere serves as the medium by which ENSO forcing is communicated to Southwest Asia. ENSO types modify the probability of tropical eastern Indian Ocean precipitation and thereby Southwest Asia precipitation probabilities.