Number of enemy submarines in the Atlantic Ocean slightly reduced according to the U.S. Joint Intelligence Committee. Daily summary dated 20 March 1942

An item reported that the 30 enemy submarines in the Atlantic Ocean were divided as follows:

-10 (a week ago 11) off the North American coastline between Cape Hatteras and a point to the eastward of the Great Banks on varying distances from the coast, 2 were in the vicinity of the Virginia Capes and 2-3 between the Virginia Capes and New York;

-3 in the Florida-Bahamas and 2 in the Caribbean-West Indies areas compared to the 7 a week ago;

-1-(just the week before) off the South American coast in the vicinity of the Guianas;

-2 eastbound and 1 westbound east and southeast of the Grand Banks;

-4 eastbound southeast of Bermuda;

-1 eastbound and 2 westbound southwest of the Azores;

-around 6 in the Rockall Area;

-2 off the West African Coast in the vicinity of Liberia.

The J.I.C. commented that it was unknown why the number of submarines decreased from 36 a week before to the 30 probably not more than a temporary fluctuation in the total number.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 100 dated 20 March 1942