TULSA, Oklahoma - Here comes the rain and the cold air. Temps today will start in the lower 40s but slowly drop into the upper 30s this afternoon with a steady rain developing through the morning into the midday and afternoon. 

Instability is very low, but a few rumbles of thunder will be possible across southeastern Oklahoma later tonight. 

The threat of any wintry weather with this system for our area will be along the Oklahoma-Kansas state line Saturday morning with some rain changing to snowflakes and across the Valleys of northwestern Arkansas late tonight into Saturday where some freezing rain will be possible.  If you have travel plans across east central Kansas into Missouri today and Saturday, significant snowfall is possible, including the St Louis metro area. 

Places like Branson and Springfield may also receive some snowfall, but mostly in the 1 to 3-inch range.  Once this system exits the area Saturday morning, a mid level elongated trough of cold air will spread across northern Oklahoma with highs in the lower 40s Saturday and the upper 30s Sunday.  The only period of freezing or slightly below freezing temps this weekend for the metro will be Sunday morning, well after precipitation ends Saturday.

The split flow upper air pattern will bring a disturbance across the southern stream while another one moves across the central U.S.  Our surface low will develop to the southwest and move across either north Texas or southern Oklahoma later tonight before exiting Saturday morning.  Deep and persistent moisture has been returning and rainfall amounts from 1 to 1.5 inches will be possible across part of east-central Oklahoma with some locally higher totals.  Slightly lower amounts will occur northward along the Oklahoma-Kansas state line region. 

Clouds will stick around Saturday and possible for most of Sunday clearing with sunshine returning Monday.   Rather pleasant and uneventful weather returns for most of next week.  A fast-upper level wave will pass the area Wednesday with a frontal passage across the state, but no rainfall is expected.  Later next week, possibly next weekend, another stronger looking system may impact part of the state.
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