Hurricane Jeanne made landfall near Port St. Lucie,
Florida on the evening of September 25, 2004, very near the same place
that Hurricane Frances made landfall earlier in the month. On the
eastern coast of Florida, there are numerous Citizen Weather Observer
Program (CWOP) stations owned and operated by private citizens who
freely donate the real-time data from their weather stations to NOAA
to help improve public weather services. CWOP is a volunteer program managed by
FSL, with assistance of the NWS.
Oftentimes when there is severe weather, commercial
power is lost and weather stations tend to go offline. However, during
the Hurricane Jeanne landfall, two CWOP stations kept sending data
from the Port St. Lucie area even after one million people lost power
and all three ASOS (Automated Surface Observing System) stations
between Melbourne (70 miles to the north) and Miami (70 miles to the
south) went off line. CWOP station CW0262 (in Port St. Lucie) reported
a gust to 81 mph, one of the highest gusts measured by any Florida
station, before going silent after taking the brunt of Jeanne's
western eye wall. CWOP station K4ZZR (3.4 miles to the east)
experienced a couple of brief outages, but with two deep cycle gel
cell batteries providing power, it continued to report in real time
through Jeanne's eye wall passage. This station measured the lowest
pressure observed in the United States for Jeanne, 954 mb. It marked
Jeanne's eye passage with a classic "baro-V"
pattern of decreasing and then increasing pressure as Jeanne's center
passed immediately south of the K4ZZR station. The MADIS quality
control information for K4ZZR indicates that in the previous month the
pressure measurement was never flagged bad, providing assurance that
the 954-mb pressure measurement is valid.
Contact information
Name: Russell B Chadwick
Tel: 303-497-6318
Russell.B.Chadwick@noaa.gov
Also: Patricia A. Miller,
David Helms
|