A Micoburst made an almost direct hit on the Field Observing
Station (FOS) of the Florida Area Cumulous Experiment affecting the instruments
pictured in map of the area (Caracena, F., and M. Maier, 1987).
The microburst registered as a pressure nose on the microbarograph and as a
gush of rain in the tipping bucket rain guage.
FIG. 1. A damage survey was taken just after the microburst (M1)
impacted in the sugar cane fields surrounding FOS. The cane fall direction is
indicated by solid straight arrows, which denote only the direction of the
damaging wind. The P at FOS indicates that it was a pressure monitoring site,
while the R indicates a raingage site. The margins of the microburst (shaded area)
were determined from the abrupt shifts in wind damage direction and from the
outer edges of that damage. No ananometer was located near FOS but, the
wind speed and direction at FOS were estimated
by meteorologists at the site.
Time series of the minute average rainfall rate in millimeters per hour
(upper curve) was computed from tipping bucket rainfall data taken at a
station less than 3 km west of FOS (R) and surface pressure in millibars
(lower curve) was recorded by a microbarograph at FOS (see Fig. 2 for location).
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