1 - Mike Hardiman, NWS El Paso, send the 18 UTC surface map above. He is working on ways to grab real-time surface observations from the many local and regional surface networks that operate (sometimes) down there. The coverage at noon on the Fourth is impressive and certainly gives a perspective on what could be available for Mexico if, for example, MesoWest could access the observations in real-time.
2 - Jack Diebolt pointed out the intense storm that occurred over the north portion of the El Pinacate volcanic area - just south of the border and near Organ Pipe NM. The above graphic shows storm total rainfall estimate from the Yuma NWS radar. Very impressive amounts estimated (max is right around 6.5 inches) - these are likely considerably too high, given that radar was scanning high up in the storm where wet hail and /or graupel are biasing the estimates. Storms are rare over this volcanic region and typically occur only when the surface based, moist layer is very deep. Graphic below shows detected CG flashes yesterday afternoon through 2 am on the 5th. The storm produced numerous CGs as did several others around the north end of GoC and Yuma. Note the huge area extending from Tucson metro area northwestward to the Colorado River Basin where storms were almost totally suppressed yesterday.
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