Start: Boerne, TX
Lunch: Kerrville/Rio Rancho
End: San Angelo, TX
421 miles
SPC Mesoscale Discussion 753 SPC Mesoscale Discussion 755
Surface Map/20Z
An upper-level low was headed east, near northeastern Texas, providing some mediocre NW flow over the central Texas. Instability was quite good, with CAPE values above 3000 J/kg along and south of I-10, where dew points were near 70F. The overall wind profile was poor for well-organized and long-lasting supercells.
Surface moisture convergence developed midday near Menard, and we watched a heavy and marginally severe storm north of town (first two images below). An additional storm or two pushed us southward towards I-10. This activity was rather prolific with the CG lightning (third image).
We headed farther south for mid-late afternoon development, between Rock Springs and Del Rio. We wound up beneath a hailer or two (with stones up to 1.5 inches in diameter). North of Del Rio, a big storm to the south (last image below) looked healthy and somewhat organized for a bit, but it was better suited for chasers in Mexico. We made our way back north to San Angelo for the night.
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