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Summer like weather prevailed through much of Tuesday (5/4), as temperatures soared to around 90°F by the middle of the afternoon (with dew points in the upper 60s to around 70 degrees). However, as this was happening, the stage was being set for a high end severe wind event across portions of the AKQ CWA. During the morning hours on 5/4, a mid-level shortwave/remnant MCV tracked from the TN Valley ENE to the Appalachians. The cold front (along with the other main synoptic scale features) remained well to our north and west through the duration of the event. The 12z (morning) sounding from Blacksburg, VA (RNK) showed an elevated mixed layer in the 700-500 mb layer (and therefore very steep mid level lapse rates). This is quite rare to see in the Mid-Atlantic. These steep mid-level lapse rates overspread the area during the day. By afternoon, the aforementioned shortwave/remnant MCV tracked from the mountains of SW VA to the central VA Piedmont. This along with weak convergence from lee troughing was enough for convective initiation to occur by 2-3 PM to our west. By this time, the environment was characterized by moderate instability (1000-1500 J/kg of MLCAPE), modest 0-6 km shear, but 50-55 knots of (850-250 mb) shear. This coupled with strong surface heating provided an environment favorable for severe winds. This is exactly what happened as a broken line of thunderstorms tracked from WSW-ENE across the local area. While the severe weather was forecast (especially closer to the event), the clusters of 70-90 mph wind gusts in Louisa/Fluvanna and Lancaster Counties were surprising. In fact, the Louisa County airport manager reported a peak wind gust of 89 MPH as measured by the Louisa AWOS (KLKU). This is unofficially the highest thunderstorm wind gust ever recorded at an ASOS/AWOS in the AKQ CWA since the office opened. It becomes official once entered in Storm Data.   
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