A number of contrails crisscrossed the morning sky just before sunrise this morning. It was cool and very comfortable along the Rillito Pathway - perfect for morning walking.
The daily average dewpoint temperature (above, from NWS) continued to fall here at Tucson yesterday, but it may start to recover some today, as convection creeps northward along the Mexican mountains of northeast Sonora. The diurnal circulations near the north end of the GoC have been bringing higher dewpoints northward into southwestern Arizona - as per Td time series below for Yuma. A large MCS moving into the central to north GoC would really help accelerate the slow, diurnal processes.
Above map (from Atmo and Vaisala) shows CG flashes detected over Mexico during the 12-hours ending at 07 UTC last night - note the very sharp delineation zone between considerable storm activity and complete suppression. The MIMIC map of TPW for 0600 am MST - above from CIMSS - shows a very strong PW gradient from south-to-north along 30 degrees north. The local area of higher PW along the Arizona/California border north of Yuma may be partly due to irrigation?
No comments:
Post a Comment