Hurricanes and Forest Fires -63- 



In addition to this account by Rex, the following brief conclusions 

 were prepared, after the test, by Schaefer, who carried on observations 

 from the E-29-J 79 ) 



"1. Many suitable clouds for seeding operations occur 

 in this type of hurricane. 



"2. The seeding operation produced an area showing snow 

 showers and stable snow clouds with light rain in the above -freezing 

 region. The stable snow clouds covered considerable area and 

 might have persisted long enough to affect other supercooled 

 clouds. I concur with the estimate of Commander Rex that about 

 300 square miles showed modification due to seeding operation. 



"3. The region where profound effects might have been pro- 

 duced was in the extremely active squall line mentioned by Com- 

 mander Rex. This was not attempted for the reasons indicated. 



"4. No build-ups were seen following the seeding operation. 

 This was to be expected, owing to the thin character of the super- 

 cooled clouds along the seeding path. 



"5. Owing to the complex structure of this 'old' storm, it 

 is believed that a 'young' hurricane would provide much more 

 satisfactory data for estimating the effect of seeding operations. 



"6. The operation pointed out the importance of making 

 future studies a part of the hurricane reconnaissance program. 

 Experimental seeding should be made by a group quite familiar 

 with the structure of the particular storm, stationed in fairly 

 close proximity, so that a number of forays would be made in 

 rapid succession. 



"While the hurricane study project secured important in- 

 formation and provided excellent training for the Project Cirrus 

 personnel, the time required for planning such an operation and 

 in analyzing the data raises the question of whether the results 

 justify further activities of this kind by this particular group 

 until the urgent and much simpler operations are completed 

 at Schenectady." 



