400-100 hPa Potential Vorticity (PVU), 250 hPa Height (dam, black) and Wind (kt), 925-850 hPa Rel. Vort. (10^-4 s^-1)
PV:
-120
-108
-096
-084
-072
-060
-048
-036
-024
-012
f000
f012
f024
f036
f048
f060
f072
f084
f096
f108
f120