Very bold wording from DVN this afternoon, as you'd expect. Point for here is down to -29 for Thursday morning.
Wednesday night...1035+ MB cold dense sfc ridge to slide in acrs the
area from the northwest. Sfc winds to continue to decrease under 10
MPH or even 5 MPH into the overnight. When combined with clear
skies, deep snow pack, and frigid start to the evening, many areas
to be colder Wed night than Tue night/Wed morning by at least a few
degrees. Although the secondary H85 MB pool of -28 to near -30C will
dump down acrs the GRT LKS and northeast of the region closer to the
upper level vortex center, still lingering cold enough values to
attain the fcst lows locally of 30 below or colder north of I80, mid
to upper 20s below along I80, and 15 to 20 below in the southern
third. Would not be surprised if some cold drainage locations north
of I80 reach 35 below ambient temps. Thus many record lows for Jan
31 in jeopardy of being broken soundly, including all time record
lows for some climate sites. Just brutal "pioneer days" cold of
dangerous values. Even with the sfc winds dropping below 10 MPH,
still getting wind chills of 25 to over 45 below into early Thu
morning and the Wind chiLL headlines will continue through 18 Thu.