More 90s This Weekend


Friday, June 5th 2015, 4:14 am
By: Alan Crone


We're on track for a warm and humid weekend with daytime highs around 90 to 92.   Temperature heat index values will range from 92 to 98 along with south to southwest winds in the 5 to 15 mph.   Our mid-level ridge of high pressure responsible for the heat and drier conditions will slide southwest during the next 36 to 48 hours and will result in a pattern change for our area early next week.  

This morning we're tracking a decaying storm complex moving southeast across east-central Kansas.  These types of system in our current atmosphere can pull some surprises.   The trend should be for the system to slide east to southeast during the next few hours and weaken as it encounters our mid-level ridge of high pressure.   On occasion these types of storm complexes can deify the odds and move more southward than anticipated.   We're going to keep the pops out of the forecast for northern OK this morning.   A few storms could brush extreme southeastern Kansas or northwestern Arkansas. 

We hit the 90 degree mark yesterday afternoon fort the first time since last October in the Tulsa metro and it appears we're heading back into the lower 90s this weekend.   We may have a few more clouds in the mix this weekend compared to yesterday but we still anticipate the 90s today and this weekend.

Monday into Tuesday a weak surface boundary should sink southward into the state allowing for scattered storm development near the front.   A few of these storms will be strong to near severe but the main threat will be down-bursts of wind and some hail.   Upper level support will be lacking with the system near our area early next week. 

A trough of low pressure currently located across the southern California region could shove a disturbance near the area Tuesday into Wednesday.   The pacific storm Blanca is also a wild card.   Some of this moisture could ride up and around the southwestern U.S. ridge early next week and find its way near the southern plains at some point.   This is a “wait and see" system. 

Temperatures are expected to drop into the upper to mid-80s Tuesday through the end of the week.   The GFS and EURO continue to flip regarding the aggressive nature of the frontal passage.  One is faster one day and slower the next.   Our forecast is positioned with a chance of showers and storms along with the expected “not as hot" air-mass over most of northern and eastern OK.

Thanks for reading the abbreviated version of the Friday morning weather discussion and blog.

Have a super great day!

Alan Crone

KOTV