During today’s severe weather briefing the NWC SAF precipitable water (PW) difference-to-model product was discussed. It showed significantly higher values of PW for the lowest layer compared to the ECMWF model background. Such higher than expected amounts of boundary layer moisture potentially have a strong impact on severe storm developments.

EUMETSAT NWC SAF PW low layer difference-to-model product screenshot of ESSL Testbed display

Two WMO officials visited the ESSL Testbed today:

Milan Dacić, chief of WMO Regional Office for Europe, and Sari Lappi, World Meteorological Organization project coordinator.