In this page, I will attempt to show where the Woodward storm developed and moved relative to the frontal boundaries and
                                dryline. The changing positions of the surface warm front and surface dryline on April 9, 1947 are shown here. Tornado locations
                                and times are presented in blue. This figure clearly illustrates that the Woodward storm initiated near the dryline around Amarillo
                                or just south of Amarillo. In fact, the surface observation sheet from Amarillo shows CB SE in the comments section at 504 pm.
                                These observations from Amarillo clearly show a warm frontal passage around 150 pm, a brief dryline passage after 6 pm,
                                retreating dryline after 7 pm, and a cold frontal passage after 8 pm. The observations from Pampa indicate a warm frontal
                                passage around 410 pm. The remark "CB SE" at 504 pm in the Amarillo observations is 40 minutes before the storm produced
                                a tornado wsw of White Deer. The dryline retreated back to the west during the evening before being overtaken by the pacific
                                cold front. It is possible that the storm approached and eventually crossed the warm front in the northeast Texas panhandle near
                                Glazier during the early evening. However, it appears that this front was undergoing frontolysis during the late evening hours.
                                On the cool side of the front, surface dewpoints were actually higher and temperatures were a little cooler. But theta-e was about
                                the same south of the front as immediately north of the front. Also, the suface winds were more backed (southeasterly) on the
                                cool side of the boundary. Therefore, cloud bases were even lower and low-level shear was higher immediately on the cool side
                                of the boundary. Once the storm reached northeast of Woodward, it was far enough into the "cool air" to encounter a slightly more
                                stable boundary layer--hence a gradual weakening trend commenced. Keep in mind that the low-level jet tends to strengthen
                                dramatically in the evening hours, and this may account for the violence of the tornadoes after dark as well. This is true of  many
                                warm front storms in my experience. For example, on the evening of the Hoisington tornado in April 2001, the low level jet increased
                                from 30 to 55 kts between 6 pm and 9 pm. Only weak tornadoes occurred before dark, and then an F4 tornado occurred with the
                                same storm after dark.