Composites of Heavy Rain Producing Elevated Thunderstorms in the Central United States

Figure 6

EAX CWA composite for 0–3 hr prior to event time showing 850 hPa: (a) geopotential height (black, gpm) and isotachs >20 kts (color-filled); (b) mean geopotential height (black, gpm) and 75–25 percentile mean spread (color-filled, kts); (c) mean isotachs >20 kts (black) and 75–25 percentile mean spread (color-filled, kts); (d) regional spaghetti plot of the 35-knot isotach at 850 hPa from each composite member (each is a different color). The star is located at the centroid of the CWA.

(a)

(b)

(c)

(d)