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S-Pol Summary

31 May 2008 0645 UTC meeting John Hubbert and Angela Rowe. S-Pol Summary. S-Pol summary. Filtering capabilities (no clutter filter). Filtering. Legacy clutter filter. CMD processing. S-Pol summary. Insects. Z. ZDR. S-Pol summary.

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S-Pol Summary

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  1. 31 May 2008 0645 UTC meeting John Hubbert and Angela Rowe S-Pol Summary

  2. S-Pol summary • Filtering capabilities (no clutter filter)

  3. Filtering Legacy clutter filter CMD processing

  4. S-Pol summary • Insects Z ZDR

  5. S-Pol summary • Initiation along slopes, followed by rapid dissipation over higher terrain (e.g., 23 May) • Sea breeze initiation over coastal plain (e.g. 26 May)

  6. S-Pol summary • Initiation along boundaries to S over ocean (e.g., 28 May)

  7. Overlays of reflectivity (1.9º elevation angle) and topography from 0005, 0105, 0205, and 0250 UTC highlight echo along western slopes of terrain Rain at S-Pol at 0200 UTC. 29 May 2008

  8. Notable W-E oriented line of convection to the W of S-Pol extending perpendicular from the coast. This boundary was also evident on satellite images for the previous 5 hours. 29 May 2008 VIS (0530 UTC) Radar reflectivity (0630 UTC)

  9. 1730 UTC Line of cells over western slopes produced outflow boundary 29 May 2008 overnight

  10. Used SuperSite scanning strategy for majority of day (included RHIs over this region) to focus on cells moving toward the terrain 30 May 2008 Z ZDR

  11. Most activity limited to NE of radar along western slopes Continued development in this region for most of day, but most impressive cells >75 km away from S-Pol 30 May 2008

  12. Precipitating features to south of S-Pol during early morning hours RHIs and polarimetric variables reveal intense cores 2000-2300 UTC 30 May 2008

  13. RHIs (2309 UTC) Higher Zdr indicating larger drops Melting level Graupel aloft, large melting drops below Phase shift

  14. 0500 UTC Indication of large-scale organization of precipitation Cells over SuperSite Continued surveillance scanning How will system interact with terrain as day progresses? 31 May 2008

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