Polo dissipates, but Southwest flash-flood risk persists
Polo dissipated over northwestern Mexico by the NHC's final 0300 UTC 30 September advisory.
Polo dissipated over northwestern Mexico by the NHC's final 0300 UTC 30 September advisory. The Weather Prediction Center maintained a moderate excessive-rainfall risk from the US Southwest into the central High Plains for 01-12Z on 30 September, with flash flooding possible and localized considerable impacts. Polo's remnant moisture is one contributor to the rain setup, alongside a broader upper-level storm system.