CASE 25 - Weak cells
along landbreeze front
Microphysical scans 1345 - 1500 Z, 1h
15m
SYNOPTIC CONDITIONS SUMMARY:
Upper level ridge axis
was shifting to the SW of Baja and a small PVA zone associated with old IV#10
was located over
Day
0 forecast discussion text
Winds
200
mb - model.ETA.200408131200.00_200mb_wnd.gif
500
mb - model.ETA.200408131200.00_500mb_wnd.gif
700
mb - model.ETA.200408131200.00_700mb_wnd.gif
850
mb - model.ETA.200408131200.00_850mb_wnd.gif
EVENT SUMMARY:
1339Z, GOES-10
24
h precipitation totals -
S-POL SUMMARY: As stratiform rain was dissipating over the GOC, an oceanic cell popped
up at 286 deg / 131 km. As a couple of cells popped up to the S and E of the
cell, and given the oceanic convection observed the previous day at this time
was somewhat impressive, the decision was made to start microphysical scanning.
RHIs were unimpressive, with shallow precip and no anvils.
S-Pol
log - spol_081304.txt
SCAN
OVERVIEW:
|
|
|
|
1345
Z |
Begin Microphysical Scanning,
Switched to MicroFar135: RHI
centered on 286 deg to capture oceanic cell development. 1345Z, Base reflectivity
|
|
1349
Z |
Cells
going up to the S and E of previous cell - hoping for increased development
as was observed at this time/location yesterday. |
|
1355
Z |
RHIs
unimpressive. 1400Z, Base reflectivity
|
|
1500
Z |
End Microphysical Scanning, Switching
to ClimoShallow: Scans showed
shallow precip and no anvils. 1500Z, Base reflectivity
|
