Some middle
latitude cyclones undergo rapid strengthening, or explosive
Cyclogenesis, over the warmer water of the North Atlantic Ocean. Any
storm registering a sea-level pressure decrease of at least one
"Bergeron" in a twenty-four hour period is treated as undergoing
explosive Cyclogenesis.
Using storm data
assembled by the National Climatic Data Center (NCDC), the climatology
of rapid cyclogenesis for 5 x 5 latitude-longitude squares within the
region from 30N to 60N, 0 to 75W was compiled. The study period
includes the winter months from 1967 to 1993. Explosive marine
Cyclogenesis is concentrated in a narrow area just to the south of
Newfoundland with yearly probability of about 0.92 per year. This
represents 21% of all storms forming or passing though this area. Based
on a Chi-Squared analysis, the normality of the deepening and filling
rate curves was done for all storms which passed through the box from
1982 to 1993.
State University College at Brockport, 1997
Under the Supervision of Dr. Jose Maliekal