Vortex flowmeter for measuring a flow rate of a fluid, the vortex flowmeter comprising: a flowtube ; a bluff body positioned in the flowtube for shedding vortices in the fluid when the fluid flows through the flowtube , wherein the bluff body has an upstream end face and the flowtube has a longitudinal axis (A) and an inner diameter (ID); a vortex sensor configured to detect the vortices and generate a vortex signal representing the detected vortices; a pressure sensor arrangement configured to detect a differential pressure in the fluid between a first location upstream of at least a portion of the bluff body and a second location downstream of at least a portion of the bluff body and generate a differential pressure signal representing the differential pressure; and a measurement processor connected to the vortex sensor and the one or more pressure sensors to receive the vortex signal and the differential pressure signal, respectively, and wherein the measurement processor is configured to compare a characteristic of at least one of the vortex signal and the differential pressure signal to a threshold and selectively use the vortex signal to generate the flow rate signal when the determined characteristic is greater than the threshold and use the differential pressure signal to generate the flow rate signal when the determined characteristic is less than the threshold; characterized in that : the first location is either on the upstream end face or spaced apart upstream of the upstream end face along the longitudinal axis (A) by a distance in an inclusive range of from about 0.0-times the inner diameter (ID) to about 4.75-times the inner diameter (ID), and in that the second location is spaced apart downstream of the upstream end face along the longitudinal axis (A) by a distance in an inclusive range of from about 0.333-times the inner diameter (ID) to about 5.0-times the inner diameter (ID). a flowtube ; a bluff body positioned in the flowtube for shedding vortices in the fluid when the fluid flows through the flowtube , wherein the bluff body has an upstream end face and the flowtube has a longitudinal axis (A) and an inner diameter (ID); a vortex sensor configured to detect the vortices and generate a vortex signal representing the detected vortices; a pressure sensor arrangement configured to detect a differential pressure in the fluid between a first location upstream of at least a portion of the bluff body and a second location downstream of at least a portion of the bluff body and generate a differential pressure signal representing the differential pressure; and a measurement processor connected to the vortex sensor and the one or more pressure sensors to receive the vortex signal and the differential pressure signal, respectively, and wherein the measurement processor is configured to compare a characteristic of at least one of the vortex signal and the differential pressure signal to a threshold and selectively use the vortex signal to generate the flow rate signal when the determined characteristic is greater than the threshold and use the differential pressure signal to generate the flow rate signal when the determined characteristic is less than the threshold; characterized in that : the first location is either on the upstream end face or spaced apart upstream of the upstream end face along the longitudinal axis (A) by a distance in an inclusive range of from about 0.0-times the inner diameter (ID) to about 4.75-times the inner diameter (ID), and in that the second location is spaced apart downstream of the upstream end face along the longitudinal axis (A) by a distance in an inclusive range of from about 0.333-times the inner diameter (ID) to about 5.0-times the inner diameter (ID). <EOS>