CASE 8b - landbreeze front

7/18/04

Microphysical scans 2130 - 2230 Z, 1h

 

 

SYNOPTIC CONDITIONS SUMMARY:

 

 

Day 0 forecast discussion text

 

Winds

200 mb - model.ETA.200407190000.00_200mb_wnd.gif

500 mb - model.ETA.200407190000.00_500mb_wnd.gif

700 mb - model.ETA.200407190000.00_700mb_wnd.gif

850 mb - model.ETA.200407190000.00_850mb_wnd.gif

 

 

 

 

 

S-POL SUMMARY:

 

2130Z, Base reflectivity

 

S-Pol log - spol_071804.txt

 

SCAN OVERVIEW:

 

2130 Z

Begin Microphysical Scanning, Switching to MicroNear90: Cells continuing westward progression, starting micro 90 to capture microphysics (need to do near, as we're not quite topping at 14 degrees). Centering swath on 90 deg, - seems that NE-SE sector is the only show in town at the moment.

 

2145 Z

Switching to MicroNear135: To better cover activity in SE quadrant. Several cells now w/tops near 17 km - However, like yesterday cores tend to be quite narrow (< 10 km). Time loop now suggests that feature that moved on shore (~20 UTC) is colliding w/outflow to produce new cell growth ~ 40 km NE of radar.

 

2210 Z

Echoes are dissipating in our vicinity but new growth ~ 100 km distant (NE sector). Will continue with micro sectors for time being to see what happens.

 

2230 Z

End Microphysical Scanning, Switching to ClimoFar: