Modified NUCAPS soundings taken at 19Z became available in AWIPS and was noticed around 2030 UTC. The One taken near Lubbock was flagged as a Successful. I wanted to compare the NUCAPS sounding withe the nearby 19Z METAR observation and found the METAR measured temp/dew observations of 77/61 where the NUCAPS sounding at the same time had surface measurement of 69/58. The difference between the surface temperature observations for a modified sounding was concerning.

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