GOES sounder nearcasting CAPE

We’ve been keeping an eye on the relationship between the GOES nearcasting CAPE field and the coverage of the developing convection over Florida today.  The synthetic satellite imagery has also done a good job on delineating the areal coverage of developing convection.  The four-panel image has actual Infrared imagery on the upper left, synthetic satellite imagery on the upper right, visible satellite and lightning data on the lower left and a layered CAPE field derived from GOES-13 sounder nearcasting data.  The highest CAPE values, around 1200 joules/kg, are located just to the northwest of Lake Okeechobee, with an axis of lower CAPEs further to the north.  There is also a subtle increase in CAPE values over northern Florida, where additional convection is developing.  The region with the lower CAPEs has weaker convection at this point.  The synthetic satellite imagery is a 12 hour forecast using the 06z run of the WRF model, valid at 18z.  It also does a nice job depicting less convection in the region of lesser instability.