Casebook 3 June 2003

CSU-CHILL Casebook: 3 June, 2003

During the early evening hours of 3 June 2003 UTC (local date 2 June), a line of thunderstorms developed immediately east and south of the CSU-CHILL radar. By 01 UTC, the low level outflow from these storms had become quite strong with some areas of aliased outbound (positive) radial velocities. The individual convective precipitation cores produced varying amounts of differential propagation phase shift ($\psi _{dp}$). At 0122 UTC (see VCHILL link below), $\psi _{dp}$ values changed gradually with range through the widespread, moderate rain area along the 090 degree azimuth. In contrast, the same amount of total $\psi _{dp}$ accumulation was attained over a range interval of less than 20 km in the thunderstorm precipitation along the 170 degree radial.

example in VCHILL

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