S-Pol Summary

31 May 2008

0645 UTC meeting

John Hubbert and Angela Rowe

S-Pol summary Filtering capabilities (no clutter filter)

FilteringLegacy clutter filter CMD processing

S-Pol summary Insects

Z ZDR

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)

S-Pol summary

Initiation along boundaries to S over ocean (e.g., 28 May)

29 May 2008

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

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.

VIS (0530 UTC)

Radar reflectivity (0630 UTC)

29 May 2008 overnight

1730 UTC

Line of cells over western slopes produced outflow boundary

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

Z ZDR

30 May 2008

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

2000-2300 UTC 30 May 2008

Precipitating features to south of S-Pol during early morning hours

RHIs and polarimetric variables reveal intense cores

RHIs (2309 UTC)

Graupel aloft, large melting drops belowMelting levelPhase shift

Higher Zdr indicating larger drops

31 May 20080500 UTC

Indication of large-scale organization of precipitation

Cells over SuperSite

Continued surveillance scanning

How will system interact with terrain as day progresses?