Scientific Forecaster Discussion

NWS Discussion
			
				

Area forecast discussion 
National Weather Service Tulsa OK 
617 am CDT Wednesday Jun 19 2013 


Aviation... 
concerning taf sites ktul/krvs/kbvo/kmlc/kxna/kfyv/kfsm. 
VFR conditions are expected through the forecast period. 
Thunderstorm chances appear too low to mention at NE OK 
taf sites at this time. 


&& 


Previous discussion... /issued 303 am CDT Wednesday Jun 19 2013/ 


Discussion... 
a ridge of high pressure aloft will begin to nudge into the 
area from the southwest today. Before we get into something 
of a dry period...the area will have to contend with a couple 
of thunderstorm complexes. This morning there is thunderstorm 
complex that extends from southwest Kansas into the Texas 
Panhandle. The latest hrrr shows this complex moving into 
central Oklahoma this morning as it decays. Have left probability of precipitation out 
of the forecast for today but not feeling overly confident about 
this decision. Could see some redevelopment on the outflow boundary 
created by this complex this afternoon. 


Another thunderstorm complex is expected to develop across western 
Kansas again this afternoon/evening and make a run at northeast 
Oklahoma and northwest Arkansas late tonight into Thursday. Do 
have probability of precipitation in the forecast to account for this feature as the 
models have been consistently showing this for several runs. 


The upper level ridge will continue to build over the area through 
the weekend. There are some signs that there may be enough weakness 
in the ridge that some isolated thunderstorms will be possible 
Saturday and Sunday afternoons in the favored terrain areas of 
southeast Oklahoma into northwest Arkansas. 


&& 


Tsa watches/warnings/advisories... 
OK...none. 
Arkansas...none. 
&& 


$$ 


Aviation...12