assumes that the climatology north of Hopedale is generally cold 

 enougli to preclude any extensive berg deterioration through April. 

 South of this point a major change in climatology will greatly aifect 

 berg environmental conditions. Any excessive warning will hasten 

 pack ice deterioration and increase the sea temperatures with at- 

 tendant increase in berg deterioration. Any excessive cooling will 

 prevent pack ice deterioration and in some cases cause ice formation 

 and inliibit increase in sea temperatures through insulation. The berg 

 environment then is preferential for berg retention. 



Tlie obvious conclusion is that any satisfactory berg forecast for a 

 forthcoming season is greatly dependent on climatic conditions exist- 

 ing south of Hopedale for the months of February, March, April, and 

 May. Hence, only when long range weatlier forecasting l^ecomes avail- 

 able can accurate forecasts be made. In the interim period, berg fore- 

 casts based on the monthly "Weather Bureau Surface Pressure forecasts 

 must continue to l)e used to continuously update the initial estimate 

 based on the available berg potential. 



Ice and weather reports 



(By country) 



Vessel 



Weather Ice 

 reports reports 



BELGIUM 



SS Frubel Enropa. 



SS Gloria 



SS Lindi 



SS Loveral 



SS Lukuga 



SS Lufira 



SS Lulua 



CCGS J. A. McDonald. 



SS John Cabot 



SS Provider 



DENMARK 



SS Regma Maersk-. 

 SS Chastine Maersk. 

 SS Anila Dan 



FINLAND 



SS Finnclipper. _ 



FRANCE 



SS Commandant 

 Bourdais 



3 



1 



11 



73 



15 



Vessel 



Weather Ice 

 reports reports 



FRANCE — eon. 



SS Cavalier La Salle 



SS Chicago 



SS Longway 



SS Stigmaria 



SS Washington 



SS Le Moyne Diberville- 



SS Winnipeg 



SS France 



SS Rocroi 



GERMANY 



SS Carl Trautwein... 

 SS Marie Leonhardt.. 



SS Irmgard Horn 



SS Transamerica 



SS Use Schulte 



SS Nabob 



SS Berlin 



SS Naumberg 



SS Tubingen 



SS Gottingen 



SS Leada 



SS Transpacific 



SS Uranus 



SS Bernard Howaldt. 



2 

 4 

 3 

 2 



10 

 2 

 2 



16 

 4 



1 

 32 

 10 

 4 

 4 

 1 

 2 

 6 

 6 



23 



