Synoptic-Scale Precursors to Tropical Cyclone Rapid Intensification in the Atlantic Basin

Figure 12

Potential temperature (K) cluster 3 RI cross section composite 1000–850 hPa (panel (a)) and non-RI cross section composite (panel (b)) and the resulting differences in the permutation test of the fields for 1000–850 hPa (panel (c): shaded areas are significant at or less). The lower values over the storm center were apparent for 3 RI clusters in cross section composite fields, while the value field revealed the inflow region as statistically significant (aligning with the specific humidity field).

(a)

(b)

(c)