Hurricane Milton - NOAA
It appears that the low pressure at the eye is weakening and the maximum wind speeds are reducing slightly.
https://www.star.nesdis.noaa.gov/GOES/floater.php?stormid=AL142024
NOAA is part of and under the jurisdiction of the Department of Commerce.
https://en.m.wikipedia.org/wiki/National_Oceanic_and_Atmospheric_Administration
That plane N43RF is a WP-3D weather recon plane hunting tracking and monitoring the hurricane.
The USAF do the same using C-130 hurricane hunter planes, they use TEAL## callsigns.