A C172 PILOT BECAME DISORIENTED IN SEVERE TURBULENCE AND LANDED WITHOUT A CLEARANCE AT TWF; THINKING IT WAS JER.

Narrative

WE WERE IN AN UNPOPULATED AREA WITH NO CTL SVCS AVAILABLE. I TRIED CALLING CTR; FSS; AND TWIN FALLS TWR AND RECEIVED NO RESPONSE. THE TURB BECAME SEVERE AND WE WERE LOSING ALT. I FOUND MYSELF A LITTLE DISORIENTED AND SCARED TO CONTINUE TO POCATELLO. I LOOKED ON THE SECTIONAL AND FOUND A SMALL ARPT IN JEROME; ID. IT IS UNCONTROLLED AND DUE TO THE BOUNCING DANGEROUS TURB I FOUND IT HARD TO READ THE MAP CORRECTLY. I CALLED UP THE TWIN FALLS TWR MANY TIMES AND RECEIVED NO RESPONSE. I FOUND THE FIELD; WHICH I THOUGHT WAS JEROME; BUT REALLY WAS TWIN FALLS. I ANNOUNCED ON THE WRONG CTAF MY BASE; FINAL AND LNDG INTENTIONS. I LANDED WITHOUT ANY TWR CLRNC TO LOOK TO MY L TO SEE A TWR. I THEN REALIZED THAT I WAS NOT IN JEROME; BUT HAD MADE IT AS FAR AS TWIN FALLS. AS I LEFT THE RWY I TUNED IN THE CORRECT FREQ FOR TWIN FALLS TWR AND TOLD HIM THAT I WAS VERY SORRY. HE REMINDED ME OF THE CORRECT WAY OF ENTERING A PATTERN AND TOLD ME THAT HE HAD TO DIVERT ANOTHER INCOMING ACFT. HE WAS NICE AND UNDERSTANDING AND THE SITUATION ENDED THERE.