MJO phase 8 pentad composites of anomalous 250-hPa geopotential height, where a pentad denotes a 5-lag mean, or the field average of lags 0 - 4 following an MJO phase. Positive geopotential height anomalies are in red solid contours, and negative anomalies are in blue dashed contours. Contours are every 10 m, and the zero contour is omitted. Anomalies found to be 95% significantly different from zero are dotted. The color shading shows the anomalous tropical precipitation composite during MJO phase 8.