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More about the next snow, from the National Weather Service, Norman

Following is the Area Forecast Discussion from the National Weather Service, Norman Forecast Office:

“Lift continues to increase across western Oklahoma and the Texas Panhandle
this afternoon within zone of mid level lift associated with
modest narrow isentropic ascent ahead of main vort max…seen in
water vapor imagery…exiting the Gulf of Ca. As this previously
mentioned vort max shifts eastward overnight…broader mid level
lift/height falls will overspread much of the region. Snow is
already covering some roadways across western Oklahoma Interstate 40…and
expect this trend will continue to spread through at least the
overnight hours especially across central and southern portions of
the forecast area. Think most nwp models are a bit slow with their associated
qpf as main shortwave trough axis is expected to pass over
scentral Oklahoma and north Texas around 18z tomorrow. Quick mid to upper
drying will follow it. However…high snow ratios/persistent
subtle lift through the dendritic zone near sunrise especially
along Interstate 40 near and west of the Oklahoma City metro will result in areas
quickly picking up an inch or two. Some isolated locations across
western Oklahoma…where the snow has already begun…could receive a
slightly over 3 inches by late tomorrow morning. Will continue
with an advisory right now considering all the previous…and
decided to extend it a few hours through tomorrow afternoon until
moisture finally exists our region.

“A similar scenario will unfold through the day Friday as another
shortwave trough traverses central and north Texas. Right now it
appears snowfall amounts will remain near an inch across portions
of central Oklahoma…but if this wave slows/speeds up one might expect
a little more/less. Both mid level moisture and lift will not be
as widespread with this next wave so do not expect signficant
impacts for most locations. increasing heights will follow for
Saturday along with drier conditions. Temps will generally climb
back up into the low 30s to low 40s n to s respectively.
heights will continue to increase through Sunday…but a cold
front is expected by early Sunday morning which will keep temps
near the same range as Saturday. The next signficant shortwave trough
will impact our region sometime early next week…likely during
the day Tuesday. Did not make any changes right now in the
extended given the lack of confidence in temperature
profiles…timing…and position of the mid level shortwave
trough. However…the likelihood of some form of wintry precip
appears to be increasing through early next week across the
Southern Plains.”


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Bryan Painter

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