Alan Crone's Weather Blog: Rain Moving Out Soon

Another disturbance is now moving across part of the southern and central plains and is producing pockets of light to moderate rainfall across eastern OK.   This disturbance should exit the area later this morning.   Rain may end in the metro this morning and move out of eastern OK between 10am and noon .   Daytime highs in the lower to mid-50s will be likely today along with south winds at 10 to 15 mph.   A third wave will arrive Friday into Saturday along with much colder air moving across the nation and into Oklahoma.   Some of the coldest air of the season will be possible this weekend into early next week. 

WARN Interactive Radar

A strong vortex is positioned across central Canada this morning and extends southward into the upper Midwest.   A broad cyclonic flow will bring another disturbance out of the intermountain region later tonight into Friday.   A surface area of low pressure is expected to develop along the Lee of the Rockies later today and migrate eastward across southern Kansas and extreme northern OK Friday.   South winds across eastern OK today and tomorrow will create a minor warming profile with morning lows in the lower 40s and highs in the 50s.   A few locations across southeastern OK may reach the lower 60s Friday afternoon and evening before much colder air will invade the area Friday night into the weekend.

The leading edge of a modified arctic air-mass will arrive Friday afternoon across northwestern OK and quickly move southeast.   Temperatures Saturday should stay steady in the lower or mid-30s along with northwest winds at 10 to 20 mph.    As the upper level wave moves eastward Saturday morning, some snow shower activity seems likely to develop across part of eastern OK for a few hours.   Amounts should remain low, but an advisory level event may be possible with some locations picking up a dusting to near 1 to 1.5 inches of snowfall.   The exact trajectory of this disturbance has changed many times in the data and I anticipate additional changes in the next day.  

The bigger issue should be the colder air.   Temperatures Saturday will be in the lower 30s with very little change.   A second surge of colder air will arrive late Saturday night into Sunday as a surface ridge of high pressure is expected to build across part of the central plains states.   Sunday morning lows in the upper teens and lower 20s may be followed by highs only in the upper 20s and lower 30s.   A few snow showers or flurries will be possible Sunday morning but the chances will remain low as dry air should quickly move across the state helping to clear the clouds from north to south.

Monday has also changed a few times in the past few days.   No changes will occur in our forecast.   This means we’re keeping our Monday dry and cold.

Thanks for reading the Thursday morning weather discussion and blog.

Have a super great day!

Alan Crone

Precip chances:   Rain continues across part of eastern OK till 10am to noon this morning.    Rain will be ending the metro during the next few hours.  A slight chance of showers will remain Friday afternoon and evening.   Some snow shower chances and much colder air is in the forecast for part of the weekend.