AIR TAXI USES EMER AUTH TO AVOID WX.

Narrative

I WAS INTERCEPTING FINAL APCH FOR THE LOC BACK COURSE RWY 22 APCH INTO ALBANY. 2 MI OUTSIDE OF THE FINAL APCH FIX I ADVISED ALBANY TWR THAT I NO LONGER WANTED THE APCH DUE TO AN INTENSE TSTM THAT HAD DEVELOPED RIGHT INSIDE THE FINAL APCH FIX AND EXTENDED THROUGHOUT THE WHOLE PROC. I NEEDED TO DEVIATE IMMEDIATELY TO AVOID ENTERING THE TSTM AND THE TURB WAS MODERATE AND SOMETIMES SEVERE. I TOLD ALBANY TWR I NEED HDG 180 DEGS AND THAT I WAS CLBING TO 3000 FT MSL TO STAY IN THE CLR. HE TRIED TO CANCEL MY IFR; THEN ASKED IF I WAS ON THE MISSED APCH PROC AND IF I WAS INSIDE THE FINAL APCH FIX. I TOLD HIM NO AND DURING HIS QUESTIONING I HAD TO EXERCISE EMER AUTH AND DEVIATE TO AVOID THE MOST INTENSE WX. I REPEATED MY REQUEST AND HE SAID 'OK; CONTACT ZJX.' I SWITCHED OVER AND TOLD THEM I WAS BREAKING OFF THE APCH AND ADVISED THEM I WAS TURNING 180 DEGS AND CLBING TO 3000 FT. HE CAME BACK CONFUSED AND SAID OK; THAT'S APPROVED; BUT HE SAID TWR HADN'T NOTIFIED HIM AND WE HAD COME CLOSE TO TFC. I BELIEVE ALBANY TWR WAS TOO SLOW IN RELAYING THE INFO TO ZJX.