Yesterday's severe storms dropped baseball sized hail just south of Norman, OK. The 0-3 hour severe hail probability forecast picked up on the storms that dropped hail over Oklahoma after 0 UTC. On the attached image, severe hail is plotted as blue letter a's from 21-03 UTC... most of which occurred after 0 UTC. The probability forecast made at 2200 UTC was valid until 0100 UTC. The higher probabilities up north represent already tornadic storms occurring over Stillwater, OK that have had a history of producing hail in the past. The intensifying probabilities extending south picked up well the storms that would produce hail in the near future.
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