AWA teamed with AECOM and New Jersey dam safety to develop updated PMP, Annual Exceedance Probabilities (AEP), and climate assessments covering the entire state and surrounding regions. The PMP depths replace HMR depths which are more than 50 years old. Extensive analysis was completed in partnership with AECOM to develop detailed temporal analyses for each storm type. The AEP information provides probability estimates for the entire region that extend to PMP for the 6- and 24-hour durations, while the climate assessments evaluated projections of temperature and precipitation in relation to PMP and other precipitation frequencies. The study results and interactive tools can be found here, https://dep.nj.gov/wlm/drec/dam-safety/probable-maximum-precipitation-study-and-evaluation-tool/
