Area forecast discussion...updated National Weather Service Memphis Tennessee 603 PM CDT Sat may 25 2013 Update... Updated to include 00z aviaton discussion below. Jcl && Discussion... /issued 230 PM CDT Sat may 25 2013/ Models are holding true to the on-going midsouth forecast for the next five days...with high pressure throughout the column dominating. The only exception will be two weak impulses moving through the ridge that may trigger an isolated shower or storm both tomorrow and Memorial Day. Again the northern and western counties will be most at risk for this stray convection. Otherwise temperatures will increase...as well as a slow rise in the humidity starting tonight. Skies will be mostly clear to partly cloudy for the most part. The Mississippi Valley ridge will slide to the Appalachians/middle Atlantic coast and build further starting Tuesday. Believe the area will be free of precipitation with the edge of the ring of fire staying just off to our west across western Arkansas through Friday. Temperatures will run around five degrees above normal through the period. Later in the week...the GFS and Euro agree that an approaching cold front will impact the region for the first weekend in June... though the GFS is still running about 24 hours faster. Model disagreement though is evident in how the associated shortwave will push the area. For certain favorable instability will be in place so a risk for some severe weather will exist...as well as a localized heavy rain/flooding threat from storms. Jab && Aviation... 00z taf cycle (26/00z-27/00z) VFR conditions will continue through the period. Winds tonight light se-S. Winds Sunday S-SW 5-8 kts. Jcl && Preliminary point temps/pops... mem 62 86 65 87 / 10 10 20 10 mkl 53 84 60 86 / 10 10 20 10 jbr 59 85 63 84 / 10 20 20 20 tup 56 86 61 87 / 10 10 10 10 && Meg watches/warnings/advisories... Arkansas...none. MO...none. MS...none. Tennessee...none. && $$