G MAY 7, 1938 
0° Potential Temperat 
0} 800 surface of 303° 
——— 4obars Showing.Pressure On Isentropic Surface 
/sobars Showing Goadensation Pressures. 
_, wusor nue Shaded Grea Shows Where Pressure 
Equals Condensation Pressure. 
ee 
ie, B TSENTROPIC CHART FoR 5.30 A.M., May 7, 1938 
| 12 HOURS ENDING 7:30A.M., MAY 6, 1938 12 HOURS ENDING 7 30 AM,MAY 7, 1938 
RAINFALL PATTERNS BY 12 HOUR PERIODS 
LEGEND 
= 1.00" AND OVER 
{2 HOURS ENDING 730 P.M, MAY 6 ,1938 
Fic. 38. 12-Hour RAINFALL PATTERNS, May 6-7, 1938 
