Tuesday, April 19, 2011

GFS, NAM point to supercell outbreak with April 19 System

The GFS and NAM are pointing towards a supercell outbreak in the Lower Great Lakes today, or at least in an environment favorable for supercells.
Below is the NAM Supercell Composite (SCP) image.
Once again, the NAM run-to-run has been very consistent in keeping this area outlined in red.
Next up is the GFS.
The GFS may look more threatening, but it isn't. There is just an extra color added onto the legend.
However, both images are equally concerning.
The good news?
There are parameters that will not be in place to conduct supercells.
These images are comparable to, say, a bunny with a scary mask on.
Not much is actually expected to happen over the red and white areas in the images above.

2 comments:

Unknown said...

Does this map represent the actual probabilities for today?

Andrew said...

Yes, however not all other parameters were in place for supercells, thus diminishing the threat of supercells by a very large amount.