22Z 23 MAR 2016 Surface Plot with boundaries
21Z 23 MAR 2016 NWS Surface Analysis (source: NWS)
Let's start with the dryline that runs from central TX, through central OK, into eastern KS. The southern portion of this boundary is characterized by the significant cyclonic wind shift while the wind shift along the northern portion is weak. However, the dewpoint change across the dryline is very sharp. A line of showers and thundershowers can be seen on the satellite image developing along the dryline.
A cold front extends southward from a low pressure center in central KS, through western OK, into the TX panhandle. A well-defined wind shift is seen across this boundary as well as a drop in temperature as you move from southeast to northwest across the front.
Another front extends from the central KS low eastward across extreme northern MO. This boundary separates cool air over IA and NE from the warmer air to the south. Winds also tends to shift from a southerly direction in the warmer air to a northeast flow in the cooler air.
A weak wind shift line has been placed from the northwest corner of MO into central MO. This trough is based on the wind shift from southerly to southeasterly across this boundary.
There is a very good correlation between the 21Z National Weather Service surface analysis and the 22Z surface sectional boundaries.