2013 Sonora-Arizona/California tornado outbreak (Blackford)

the 2013 Sonora-Arizona/California tornado outbreak was a small yet damaging tornado outbreak that struck portions of northwestern Mexico and the southwestern United States on September 10, 2013.

Meteorological history
On September 9, 2013, the SPC issued a Day 2 Slight Risk of Severe Thunderstorms for portions of the southwestern United States.

The main concern was the potential for damaging winds, however as GFS model runs began to suggest more of a individual supercell potential rather than a linear pattern like originally suggested, the potential for a localized tornado outbreak became more and more apparent.

Finally, during the early morning hours of September 10, a moderate risk was issued for the region, the first one issued on record for the region. Near unprecedented conditions existed that day for strong severe thunderstorms, including the possibility of a few tornadoes.

Cananea, Sonora
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