Answer :
Final answer:
The RVR at KMIB for Runway 11 is 1200 feet as indicated by the SPECI code "R11/1200FT" in the report.
Explanation:
The Runway Visual Range (RVR) at KMIB, based on the SPECI provided, is "1200 feet for Runway 11". RVR is a measure used in aviation to represent the horizontal distance a pilot will be able to see down the runway, which in this case is indicated by the SPECI report "R11/1200FT".
This means that for Runway 11, the RVR is 1200 feet at the time of the report, which is critical information for pilots during takeoff and landing procedures, especially under adverse weather conditions like the blowing snow (-BLSN) reported.