The pesky upper low over the Southeast US continues to move offshore. With strong surface heating and "cool" mid-level temperatures with this low, airmass thunderstorms continue to develop over the Southeast US. UAHCI has been indicating many areas with Strength of Signals over 60 from the Southeast up into the Mid-Atlantic States. Many of these storms will not become severe due to the surrounding synoptic environment, yet will produce heavy rainfall and frequent lightning with the stronger storms. This example of UAHCI tracks a slow developing storm in Washington County, GA. These two images are from 1632 UTC and 1645 UTC with Strength of Signals (SOS) of 52 and 57 respectively, suggesting only slow growth at the time.
At 1702 UTC, the SOS ramped up to 73, suggesting more rapid growth and increasing confidence that this cell will actually CI.
At 1715 UTC, the SOS increases further to 83. The UAHCI algorithm stopped tracking the object after this time period as it was deemed mature within the cloud mask, which is evident within the visible imagery at 1725 UTC.
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