A figure 4 pattern should be performed  over land after the hurricane 
has made landfall at the lowest altitude that the crews decides is 
safe (~10,000-15,000 ft). Doppler data will be collected to aid in 
rainfall estimation and to help document the changes in vortex and 
rainband structure over land that are crucial to understanding the 
environment that supports tornado and mesovortex development.

 
  Over land, 12 mesonet stations, 3 profilers and 2 DOW doppler radars  
should be deployed along the path of the landfalling hurricane to 
identify the changes in storm structure as the hurricane moves inland. The 
mesonet stations should be deployed in 3 lines of 4 stations each. The 
mesonet stations will be employed to obtain high resolution surface wind, 
temperature, pressure, relative humidity, and perhaps rainfall 
measurements.  A profiler will be placed at the center of each of 
the lines of mesonet stations. The profilers and collocated RASS sounder
will provide wind and temperature measurements within  the lowest 3 and 1 
km, respectively. If possible, rain gauges should be collocated at each
profiler and DOW radar site to obtain high resolution rainfall 
measurements useful both for calibrating the radar rainfall algorithms 
and for documentation of storm rainfall. By combining these mesonet
observations with those obtained from existing National Weather Service
reporting stations, it should be possible to obtain a detailed  depiction
of the distribution of surface wind, temperature, pressure, 
moisture, and rainfall in a landfalling hurricane. 
However, it is important to note that accurate documentation of
the exposure and height of the anemometers at all surface wind
observing sites is an essential component of this option, 
since previous research has demonstrated that an accurate depiction
of the surface wind field cannot be obtained without such information.
 
     
The first of the three lines of the mesonet stations should be placed as 
close as possible to the coastline to enable accurate documentation of the 
surface wind field at landfall. The other two lines should be placed 
approximately 50 and 100 km inland respectively; however, these distances
will vary depending upon the intensity and speed of motion of the landfalling
storm as well as safety considerations. The inland profilers should
be highly mobile so that it will be possible to follow severe weather
producing rainbands provided that safety and logistical considerations
allow. The DOW doppler radars should be placed roughly halfway between
the two rear lines of mesonet and profiler stations.  The DOW radars in
combination with the 3 profilers with RASS will aid in documenting the
changes in the kinematic and thermodynamic  structure of the hurricane
after landfall. As noted previously, an accurate analysis of these changes
is crucial to learning more about the development of  mesovortices and/or
tornadoes spawned by the landfalling hurricane.  They will also
help document the changes in the winds within the PBL  of a landfalling
hurricane. This is important because small-scale features within the PBL may 
determine the patterns of wind damage; furthermore, some modeling studies
suggest that the winds at the top of the PBL decay much more slowly than the
surface winds and therefore may be well correlated with the surface wind gusts. 
Finally, the radars will aid in the measurement of the rainfall
associated with the landfalling hurricane.