Area forecast discussion National Weather Service Tulsa OK 1224 am CDT Friday may 24 2013 Aviation... concerning taf sites ktul/krvs/kbvo/kmlc/kxna/kfyv/kfsm. For the 6z tafs... VFR conditions will prevail at all taf sites throughout the 24 hour forecast period...with local MVFR visibilities in fog across NE OK. Generally light south-easterly winds and lots of middle and high clouds. Thunderstorm chances will increase across eastern Oklahoma during the late morning into the afternoon Friday. Have prob30 groups in the affected tafs to account for this. && Previous discussion... /issued 906 PM CDT Thursday may 23 2013/ ... Discussion... narrow band of showers/thunderstorms have finally weakened this evening. A few storms could move into eastern Oklahoma late tonight from the west so kept slight chance probability of precipitation for the overnight hours. Otherwise...forecast on track with no significant changes. && Tsa watches/warnings/advisories... OK...none. Arkansas...none. && $$ Aviation...06