J_2024 05 09_West Orange Stormwater Management Plan

8/11/23, 9:13 AM Precipitation Frequency Data Server NOAA Atlas 14, Volume 2, Version 3 Location name: West Orange, New Jersey, USA* Latitude: 40.7897°, Longitude: -74.2564° Elevation: 602 ft** * source: ESRI Maps ** source: USGS POINT PRECIPITATION FREQUENCY ESTIMATES G.M. Bonnin, D. Martin, B. Lin, T. Parzybok, M.Yekta, and D. Riley NOAA, National Weather Service, Silver Spring, Maryland PF_tabular | PF_graphical | Maps_&_aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches)1 Duration 5-min Average recurrence interval (years) 1 2 5 10 25 50 100 200 500 1000 0.336 0.401 0.474 0.527 0.592 0.640 0.685 0.725 0.776 0.813 (0.307‑0.369) (0.367‑0.440) (0.433‑0.520) (0.479‑0.577) (0.537‑0.648) (0.578‑0.701) (0.616‑0.750) (0.648‑0.795) (0.687‑0.852) (0.714‑0.895) 0.534 0.638 0.757 0.840 0.940 1.01 1.08 10-min (0.488‑0.586) (0.583‑0.700) (0.691‑0.831) (0.764‑0.921) (0.853‑1.03) (0.913‑1.11) (0.971‑1.18) 0.666 0.801 0.953 1.06 15-min (0.608‑0.731) (0.732‑0.878) (0.870‑1.05) (0.962‑1.16) 0.909 1.10 30-min (0.831‑0.998) (1.01‑1.21) 60-min 2-hr 3-hr 6-hr 12-hr 24-hr 2-day 3-day 4-day 7-day 10-day 20-day 30-day 45-day 60-day 1.14 1.22 1.27 (1.02‑1.25) (1.08‑1.34) (1.12‑1.40) 1.19 1.28 1.36 1.44 1.53 1.59 (1.08‑1.30) (1.15‑1.40) (1.22‑1.49) (1.28‑1.57) (1.36‑1.68) (1.40‑1.75) 1.35 1.52 1.75 1.91 2.07 2.22 2.41 2.55 (1.23‑1.48) (1.39‑1.67) (1.58‑1.92) (1.72‑2.09) (1.86‑2.27) (1.98‑2.43) (2.14‑2.65) (2.24‑2.81) 1.13 1.38 1.72 1.98 2.32 2.58 2.84 3.10 3.45 3.71 (1.03‑1.24) (1.26‑1.51) (1.57‑1.89) (1.80‑2.17) (2.10‑2.54) (2.33‑2.83) (2.55‑3.11) (2.77‑3.40) (3.05‑3.79) (3.26‑4.09) 1.39 1.69 2.14 2.49 2.98 3.38 3.78 4.22 4.81 5.29 (1.26‑1.52) (1.54‑1.86) (1.95‑2.35) (2.26‑2.74) (2.69‑3.26) (3.03‑3.70) (3.37‑4.15) (3.73‑4.62) (4.21‑5.28) (4.58‑5.81) 1.55 1.89 2.39 2.79 3.34 3.78 4.24 4.72 5.39 5.93 (1.42‑1.70) (1.73‑2.08) (2.19‑2.63) (2.54‑3.06) (3.02‑3.66) (3.40‑4.14) (3.79‑4.64) (4.18‑5.17) (4.72‑5.91) (5.14‑6.50) 2.00 2.43 3.08 3.60 4.34 4.97 5.63 6.35 7.37 8.22 (1.84‑2.19) (2.23‑2.66) (2.81‑3.36) (3.28‑3.92) (3.93‑4.73) (4.46‑5.40) (5.01‑6.12) (5.59‑6.89) (6.40‑8.02) (7.06‑8.96) 2.49 3.03 3.85 4.54 5.56 6.43 7.37 8.42 9.96 11.3 (2.28‑2.74) (2.77‑3.33) (3.5

.66) (2.81‑3.36) (3.28‑3.92) (3.93‑4.73) (4.46‑5.40) (5.01‑6.12) (5.59‑6.89) (6.40‑8.02) (7.06‑8.96) 2.49 3.03 3.85 4.54 5.56 6.43 7.37 8.42 9.96 11.3 (2.28‑2.74) (2.77‑3.33) (3.51‑4.23) (4.13‑4.97) (5.00‑6.06) (5.74‑7.00) (6.51‑8.01) (7.34‑9.15) (8.52‑10.8) (9.49‑12.3) 2.82 3.42 4.38 5.20 6.44 7.52 8.71 10.0 12.1 13.8 (2.61‑3.07) (3.16‑3.72) (4.05‑4.76) (4.79‑5.65) (5.89‑6.98) (6.82‑8.14) (7.82‑9.44) (8.92‑10.9) (10.5‑13.1) (11.8‑15.1) 3.33 4.04 5.15 6.09 7.46 8.63 9.90 11.3 13.4 15.1 (3.08‑3.63) (3.73‑4.39) (4.76‑5.61) (5.60‑6.62) (6.82‑8.10) (7.84‑9.37) (8.92‑10.8) (10.1‑12.3) (11.7‑14.7) (13.1‑16.6) 3.51 4.24 5.39 6.35 7.74 8.91 10.2 11.5 13.6 15.2 (3.24‑3.80) (3.93‑4.60) (4.99‑5.86) (5.85‑6.89) (7.09‑8.38) (8.11‑9.66) (9.19‑11.0) (10.3‑12.6) (11.9‑14.8) (13.3‑16.8) 3.68 4.45 5.64 6.61 8.02 9.19 10.4 11.8 13.8 15.4 (3.41‑3.98) (4.13‑4.82) (5.22‑6.10) (6.11‑7.16) (7.36‑8.67) (8.38‑9.94) (9.46‑11.3) (10.6‑12.8) (12.2‑15.0) (13.5‑16.9) 4.35 5.22 6.50 7.54 9.04 10.3 11.6 13.0 15.0 16.7 (4.05‑4.69) (4.87‑5.64) (6.04‑7.00) (6.99‑8.12) (8.33‑9.73) (9.42‑11.1) (10.6‑12.5) (11.7‑14.1) (13.4‑16.4) (14.7‑18.3) 4.99 5.96 7.30 8.40 9.94 11.2 12.5 14.0 15.9 17.5 (4.66‑5.36) (5.58‑6.41) (6.82‑7.84) (7.82‑9.01) (9.21‑10.7) (10.3‑12.0) (11.5‑13.5) (12.7‑15.1) (14.3‑17.3) (15.5‑19.2) 6.75 8.01 9.56 10.8 12.4 13.7 15.0 16.3 18.1 19.4 (6.34‑7.19) (7.52‑8.53) (8.97‑10.2) (10.1‑11.5) (11.6‑13.2) (12.7‑14.6) (13.9‑16.0) (15.0‑17.5) (16.5‑19.5) (17.6‑21.0) 8.41 9.92 11.6 12.9 14.5 15.8 17.1 18.3 19.8 20.9 (7.95‑8.89) (9.38‑10.5) (11.0‑12.3) (12.2‑13.6) (13.7‑15.4) (14.8‑16.8) (16.0‑18.1) (17.0‑19.4) (18.3‑21.2) (19.3‑22.5) 10.7 12.5 14.5 15.9 17.8 19.2 20.5 21.8 23.5 24.6 (10.1‑11.3) (11.9‑13.2) (13.7‑15.3) (15.1‑16.8) (16.8‑18.8) (18.1‑20.3) (19.3‑21.7) (20.5‑23.1) (21.9‑24.9) (22.9‑26.3) 12.8 15.0 17.2 18.8 20.7 22.2 23.6 24.8 26.4 27.4 (12.2‑13.5) (14.3‑15.8) (16.3‑18.1) (17.8‑19.7) (19.7‑21.9) (21.0‑23.4) (22.2‑24.8) (23.4‑26.2) (24.7‑27.9) (25.6‑29.2) 1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at lower and upper bounds of the 90%

1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values. Please refer to NOAA Atlas 14 document for more information. Back to Top PF graphical https://hdsc.nws.noaa.gov/pfds/pfds_printpage.html?lat=40.7897&lon=-74.2564&data=depth&units=english&series=pds 1/4