Anomalously-strong jet streak over the Mid-Atlantic states

GOES-16 Upper-level Water Vapor (6.2 µm) images, with 6.2 µm Derived Motion Wind vectors plotted in red, contours of RAP40 model Maximum Wind isotachs plotted in cyan and rawinsonde sites indicated in yellow [click to play animated GIF | MP4]
Plots of Wallops, Virginia rawinsonde data at 00 UTC and 12 UTC on 20 November (below) showed that the maximum wind speeds were at the 213 hPa level (187.8 knots) at 00 UTC and the 206 hPa level (189.8 knots) at 12 UTC.
A plot of 250 hPa wind speed climatology for the Wallops rawinsonde site (from SPC) includes the 12 UTC value on 20 November 2022 (shown by the black circle) — which indicated that the 183-knot value measured during that 12 UTC sounding ascent was the fastest 250 hPa wind speed for the month of November at that site.