From the latest discussion:

IN ADDITION TO THE SPECTACULAR CLOUD PATTERN OBSERVED ON SATELLITE
...AN AIR FORCE RECONNAISSANCE PLANE MEASURED 168 KNOTS AT 700 MB
AND ESTIMATED A MINIMUM PRESSURE OF 884 MB EXTRAPOLATED FROM 700MB.
UNOFFICIALLY...THE METEOROLOGIST ON BOARD THE PLANE RELIED AN
EXTRAPOLATED 881 MB PRESSURE AND MEASURED 884 MB WITH A DROPSONDE.
THIS IS ALL IN ASSOCIATION WITH A VERY SMALL EYE THAT HAS BEEN
OSCILLATING BETWEEN 2 AND 4 N MI DURING EYE PENETRATIONS. THIS IS
PROBABLY THE LOWEST MINIMUM PRESSURE EVER OBSERVED IN THE ATLANTIC
BASIN AND IS FOLLOWED BY THE 888 MB MINIMUM PRESSURE ASSOCIATED
WITH HURRICANE GILBERT IN 1988. HOWEVER...ONE MUST BE VERY CAREFUL
BEFORE IT IS DECLARED A RECORD MINIMUM PRESSURE UNTIL A FULL AND
DETAILED CALIBRATION OF THE INSTRUMENTS AND CALCULATIONS IS
PERFORMED. SO PLEASE DO NOT JUMP INTO CONCLUSIONS YET...BE PATIENT.