loop
bknt 1000
clr2
bknt 850&
clr3 
bknt 700&
CONT SSUM RELH 1000 RELH 850
CONT SSUM RELH 700
CONT SSUM RELH 500
SDVC 0004 CI10 CLRD&
CONT SSUM RELH 1000 RELH 850
CONT SSUM RELH 700
CONT SSUM RELH 500
SDVC 0004 GRTN 0069 CI10 CLR3&
TXT4 1000/850/700 WINDS / 1000-500 MEAN RELATIVE HUMIDITY - 
ENDL