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The Cloud-top-Cooling algorithm was off the charts with values of -60 C/15min. This is most likely due to some error in the computing as the anvil moved east. The previous IR frame had no thunderstorm cloud over the location and the cloud top temperature went from +12 to -41 C. This could be a one time error, as other frames do not show this, but something a forecaster needs to be aware of.
Hampshire
