Case: 02 December 2022

Summary

Event with precipitating open cell cumulus that transition towards more closed behaviors

Description

This was a hybrid cloud case that blends aspects of primarily open and some closed cellular behaviors across the Azores region. Associated winds were predominantly northerly and modest ( > 25 kts) throughout this event. Cloud echo tops in the more intense cells were observed to be as much as 1 km above the ambient melting level (1.5 km AGL) for this event. Open cell characteristics tended to be most prominent over the ENA main site during the daytime hours of this event.

Available assets

Standard ARM profiling assets, SEVIRI. SACR, RLPROF-FEX. Event was missing the 2330 UTC radiosonde on December 2nd

Critical period: 06:00-15:00

Open cell cumulus conditions over the ENA main site

True color MODIS AQUA — Figure 44 True color afternoon MODIS AQUA image with overlaid LES domains. The image area corresponds to the 5° region sampled for the larger forcing option. The yellow and orange boxes correspond to the sizes of the 25 km and 102 km LES domains, respectively.