Heavy, middle clouds across Tucson at 6:00 am MST this morning. Satellite image below (visible at 6:30 am) shows band of debris cloud, plus few showers White Mountains and western Sonora.
Yesterday was pretty much a down day, with thunderstorms constrained to mountains and higher elevations. Plot of detected CG flashes above (from Atmo and Vaisala) is for 24-hours ending at 0740 UTC last night. Bit of a Tucson donut hole showing up.
Only seven sites with rainfall through 7:00 am this morning across ALERT network - two amounts reported of 0.75" one at Keystone Peak west of Green Valley and one in the Catalinas.
Although there is PW of 1.38", not much else of significance in morning TWC sounding plot (above from SPC). Couple of old boundary layers apparent but only slight CAPE above 600 mb. Wind field entire troposphere essentially light and variable. Plot for 500 mb this morning (below, also from SPC) indicates anticyclone over western New Mexico and perhaps a weak short wave across Arizona. Generally a pretty blah map for the Southwest.
The 06 UTC WRF-GFS forecast of total rainfall through midnight tonight (bottom) indicates very light amounts, mostly over higher elevations of Santa Cruz and Cochise County. Back to a waiting game.
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