Office of the Chief Sig^nal Officer, 



UNITED STATES ARMY. 

 €l.nrle<l from Aot.ml Ob..n«.l«„. ,akc„ 8in.nltaneo.mI,. Serl«« com,..e„,l,.s «o.„ber. 11.77. 



r 



PREVAILING WINDS 

 Arrows .shows the cUroctlon of, and Hy with, the wi; 

 Force is Khown as foUows ; 



40.tf to 67.5 

 67.6 up. 



l^X" 



4.1 to 10.1 



10.1 to 18.1 

 rs.l to 30.2 



30.2 & ovrr. 



PUBLISHED BV ORDER Ot TDK BECRETARV OF WAR. 



CUtalHVU.^M- 



-.■Wk^ , 



BKIG. (iRN. (fi 



;'U1 CHIEF SIGNAL OrtK-K 



ISOBA»S AND ISOTHERMS. ^^^^ 

 IsUiirK in biM. dolachert baiom^ier m.Mii^ 

 in E ii^li-^h tnclif.s. ,„mn*.ratiin 



INTERNATIONA!. MONTHLY CHART. 



«l,„w.ne mean pressure, mean tfmp«rnlur6. mean force and prevailing dlrectlo 



" ; 35 AM., Washington mean time, for the month of .Tniy. isr8. Im.e, 



on the daily charts of the Intfrnallonsil Uiilletin 



/ 



,s in degrees Fnhrenliell. 



