FLC OF A EMB120 DECLARED A MINIMUM FUEL EMER AFTER MAKING A MISSED APCH AT BOTH DEST; AND A SUBSEQUENT ALTERNATE ARPT; DUE TO WX BELOW MINIMUM. ACTUAL WX DETERIORATED BELOW MINIMUMS WHILE ENRTE.

Narrative

ENRTE TO FAYETTEVILLE; AR; FROM DFW WITH TULSA; OK; AS OUR ALTERNATE. FAYETTEVILLE'S WX WAS 0 BROKEN 5 OVCST AND 1 MI VISIBILITY. WE SHOT THE APCH AND MISSED. AFTER OUR MISSED APCH WE STARTED FOR TULSA. RAZORBACK APCH INFORMED US THAT FT SMITH; AR; WAS 1500 FT OVCST AND 4 MI VISIBILITY. TULSA WAS 4 OVCST AND 1 MI VISIBILITY. WE STARTED FOR FT SMITH. FT SMITH'S MAIN RWY 7/25 WAS CLOSED AND THE ILS OTS. WE SHOT THE VOR DME RWY 7 CIRCLE TO RWY 1. INSIDE THE FAF FT SMITH CAME OUT WITH NEW WX; 6 OVCST 1 1/4 MI VISIBILITY. WE CONTINUED THE APCH. AT MINIMUMS WE DID NOT SEE ANYTHING. WE EXECUTED THE MISSED APCH. AFTER THE MISSED WE LOOKED AT OUR FUEL. WE HAD ABOUT 45 MINS OF FUEL LEFT. WE ESTIMATED TULSA AT 30 MINS. WE REQUESTED DIRECT TULSA; DECLARED MINIMUM FUEL AND AN EMER. WE DETERMINED THAT TULSA WAS THE NEAREST SUITABLE ARPT BECAUSE OF THE WX IN THE AREA AND AVAILABILITY OF APCH PLATES. TULSA WAS LNDG RWYS 18L/R; WE REQUESTED RWY 36R ILS. THEY TURNED THE ILS AROUND FOR US. WE LANDED WITH AN ESTIMATED 10-15 MINS OF FUEL ON BOARD. THE LNDG WAS UNEVENTFUL; THE PAX DEPLANED WITHOUT ANY IDEA. ANOTHER CONTRIBUTING FACTOR WAS THAT REGIONAL APCH (DFW) KEPT US LOW FOR AN EXTENDED LENGTH OF TIME (AT LEAST 20 MINS). WE BURN NEARLY TWICE AS MUCH FUEL AT LOW ALTS.