NASA's QuikScat Monitors Increased Storm Activity

W. Timothy Liu, NASA Jet Propulsion Laboratory

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In an unusual occurrence, four tropical systems threatened the United States last week, as depicted in this image obtained September 26, 2002 from the JPL-managed Quick Scatterometer (QuikScat) instrument. QuikScat revealed two mature hurricanes (Kyle and Isidore) and one brewing tropical depression (Lili, now Hurricane Lili) in the Atlantic and Caribbean, plus the remnants of Tropical Storm Julio in the Eastern Pacific. White streamlines in the image indicate wind direction and are superimposed on the color map of wind speeds. Image was produced by Xiaosu Xie.