Severe Weather Discussion for December 21 – 27, 2009.
– Rain is likely statewide Tuesday evening through Thursday morning.
Snow is expected across parts of the state on Thursday.
– Temperatures will be in the near 60F on Monday, low 50s Tuesday,
upper 30s Wednesday, low 30s Thursday, upper 30s Friday – Saturday,
low 40s Sunday.
– Merry Christmas to all!
– Severe Thunderstorms in Oklahoma: < 5%
– Storm Chase: < 5%
– Winter Precip: 40%
Issuing special discussions, so I will not spend much time on this
one. The primary item of interest will be the southwest U.S. system
expected around Wednesday/Thursday. Monday and Tuesday will be warm
ahead of the upper system and then cool down Wednesday with cloud
cover. Thursday will be cooler as the surface low moves east and cold
air moves into the region. Models indicate the cold air will remain
entrenched through the holiday weekend.
I went with MOS Monday – Tuesday and seriously undercut MOS through
the end of the week, inline with Norman NWS.
There seems to be decent potential of snow late Wednesday into
Thursday. I have gone 40% on the winter precip potential and may need
to go higher, but for now will advertise a medium-end event as greater
than 4 inches of snow may occur in parts of Oklahoma. Holiday travel
and time period necessitate discussions and therefore will continue
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