A band of showers moved through eastern Pima County around midnight. Amounts were very light, generally 0.05" or less. here at house we had 0.03" - enough to add some humidity but not enough to really even wet the ground. The above graphic is the regional, base-scan radar at midnight. Across the ALERT network only 13 of 93 stations recorded measurable rainfall - however, the coverage was actually considerably more since the stations can't/don't measure amounts less than 0.04". One ALERT station up in the Catalinas had just under a quarter of an inch - see below for past 24-hour amounts.However, this was first the first May rainfall here at house since 2009 - so an unusual event.
The WRF and NAM both had the character and intensity of the event well forecast, although areal coverage of light rain was underdone in both models.
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