NWS TOWER, JOHNSTON IOWA

LOOKING OVER TO POLK CITY /MILE BRIDGE FROM N.W.S JOHNSTON TOWER.
THIS IS ONE OF SEVERAL CRAZY LOOKING GIANT PROBES IN THE POLK CITY AREA USED BY THE N.W.S NOT SURE HOW IT WORKS WOULD LOVE TO HEAR FROM PEOPLE IN JOHNSTON IF THEY KNOW WHAT THE GOVT IS DOING WITH THIS THING. SOME PEOPLE THEORIZE IT IS AN ALIEN COMMUNICATIONS DEVICE. OTHERS SAY IT IS USED TO MEASURE ATMOSPHERIC BAROMETRIC PRESSURE. WHAT IS IT? PLEASE LET US KNOW IN THE COMMENT SECTION.