The 4 March 2020 FDTD Satellite Applications Webinar was a tag-team discussion of a high profile snow squall event in PA/NY led by Dave Radell (SOO at New York City, NY) and Mike Jurewicz (SOO at State College, PA). In this webinar Mike and Dave shared several tips and tricks for fellow forecasters who may face this type of phenomenon in their own offices in the future. Here is one example of how satellite data was used to give a more complete picture as the event unfolded:
“A product that’s gaining a lot of popularity is the Day Cloud Phase, it’s an RGB product […] I would highly recommend the RGB product not only for these snow squall scenarios but for convection in general. […] although you get some idea in the traditional visible of the cloud enhancements, it really jumps out at you on the RGB loop. As these cloud features are growing taller and you’re getting more glaciation at the higher levels. With the ingredients that go into the RGB loop you can see that red and orange tint so it really jumps out at you nicely what the developing convective features are versus the lighter blue shading which is the flatter more laminar stratocumulus features. Again it could be another clue as to what really are the features of interest.”
“These snow squalls can be pretty robust convection in the winter time but in the grand scheme they’re fairly shallow features so you’re going to have issues with radar overshooting. But if you can combine your radar analysis with satellite you can get a more complete picture of how things are evolving.”
To view the full webinar: http://rammb.cira.colostate.edu/training/visit/satellite_chat/20200304/.
FDTD Satellite Applications Webinars are peer-to-peer learning; staff from WFOs, National Centers, CWSUs, RFCs lead the presentations. The presentations are short (less than 30 minutes) and recorded for on-demand viewing.
For more information on these webinars follow us on Twitter @wxsatchat. Past recordings can be found at http://rammb.cira.colostate.edu/training/visit/satellite_chat.
NWS employees: If you’re interested in attending future GOES Applications webinars, contact your SOO.