JMA02P003 262 270 Main Street Development Stormwater Management Report

NOAA Atlas 14, Volume 2, Version 3 Location name: West Orange, New Jersey, USA* Latitude: 40.7866°, Longitude: -74.2324° Elevation: 196 ft* * source: ESRI Maps ** source: USGS POINT PRECIPITATION FREQUENCY ESTIMATES GM. Bonnin, D. Martin, B. Lin, T. Parzybok, M.Yekta, and D. Riley NOAA, National Weather Service, Silver Spring, Maryland PE tabular | PF_graphical | Maps_& aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches)! Average recurrence interval (years) Duration| [1 [2 | 5s J] 1 | 2 | 50 || 100 | 200 || 500 || 1000 5-min 0.335, 0.400 0.473 0.528 0.593 0.639 0.685, 0.726 0.780 0.818 (0.306-0.368) | |(0.366-0.439)]|(0.432-0.519) |(0.480-0.579) |(0.538-0.650)]||(0.577-0.700) |(0.616-0.750)]|(0.648-0.795)]|(0.690-0.857) |(0.718-0.901) 40-min 0,534 0.638 0,755, 0,838 0,938 1,01 1,08 1.14 1.22 1.27 4 (0.488-0.586)||(0.583-0.699)]|(0.689-0.829) |(0.763-0.919)]| (0.852-1.03) || (0.913-1.11) || (0.971-1.18) |] (1.02-1.25) |] (1.08-1.34) || (1.12-1.40) 45-min 0.664 0.798 0.951 1.06 1.19 1.28 1.36 1.44 1.53 1.60 }(0.607-0.729)||(0.730-0.876)]| (0.868-1.04) | (0.962-1.16) || (1.08-1.30) || (1.15-1.40) || (1.23-1.49) |] (1.28-1.58) || (1.36-1.68) || (1.40-1.76) 30-min 0.907 1.10 1.34 1.52 1.75 1.91 2.07 2.22 242 2.56 (0.829-0.995)|| (1.00-1.20) |] (1.23-1.48) || (1.38-1.67) 1.59-1.91) || (1.72-2.09) || (1.86-2.27) || (1.98-2.43) || (2.14-2.66) || (2.25-2.82) 60-min 1.13 1.37 1.72 1.98 2.32 2.58 2.84 3.10 3.45 3.72 (1.03-1.24) || (1.26-1.51) || (1.57-1.89) | (1.80-2.17) || (2.10-2.54) |} (2.33-2.82) || (2.55-3.11) |} (2.77-3.40) || (3.05-3.79) || (3.26-4.10) 2-hr 1.38 1.68 2.13 2.48 2.97 3.37 3.78 4.20 4.80 5.28 (1.26-1.52) || (1.54-1.85) || (1.94-2.35) | (2.26-2.73) || (2.68-3.26) |] (3.02-3.69) || (3.36-4.14) |} (3.72-4.61) || (4.20-5.28) |] (4.57-5.81) 3-hr 1.54 1.88 2.38 2.78 3.32 3.77 4.23 4.71 5.38 5.91 (1.41-1.70) || (1.72-2.07) || (2.18-2.62) | (2.53-3.05) || (3.01-3.65) |] (3.39-4.13) || (3.78-4.63) || (4.17-5.16) || (4.71-5.90) || (5.13-6.49) 6-hr 1,99 2.42 3.06 3.58 4,33 4.95 5.61 6.31 7.33 8.17 " (1.83-2.19) || (2.22-2.66) || (2.80-3.35) | (3.26-3.91) || (3.91-4.71) |] (4.44-5.38) || (4.99-6.10) |} (5.56-6.87) || (6.36-7.98) || (7.01-8.91) 42-hr 2.48 3.01 3.82 4.51 5.52 6.38 7.31 8.34 9.86 11.2 ” (2.27-2.73) || (2.75-3.31) || (3494.20) | (4.10-4.94) || (4.97-6.01) |] (5.70-6.94) ||

4.99-6.10) |} (5.56-6.87) || (6.36-7.98) || (7.01-8.91) 42-hr 2.48 3.01 3.82 4.51 5.52 6.38 7.31 8.34 9.86 11.2 ” (2.27-2.73) || (2.75-3.31) || (3494.20) | (4.10-4.94) || (4.97-6.01) |] (5.70-6.94) || (6.46-7.95) |} (7.28-9.07) || (8.44-10.7) || (9.40-12.1) 24-hr 2.80 3.39 4.35 5.17 6.40 7.47 8.66 9.99 12.0 13.7 i (2.60-3,04) || (3.14-3.69) || (4.02-4.72) | (4.76-5.61) || (6.86-6.93) || (6.79-8.09) || (7.78-9.38) || (8.87-10.8) || (10.5-13.0) || (11.8-15.0) 2-da 3.30 4.00 5.11 6.04 7.40 8.56 9.83 11.2 13.3 15.0 'Y || (@.05-3.59) || (3.69-4.35) |] (4.71-5.56) | (6.55-6.56) || (6.76-8.04) |] (7.77-9.31) || (8.85-10.7) |] (10.0-12.3) || (11.6-14.6) || (13.0-16.6) 3eda 3,48 421 5.35 6.30 7.68 8.85 10,1 11,5 13.5 15.2 || (3.22-3.77) || (3.90-4.57) || (4.95-5.81) | (6.81-6.84) || (7.04-8.33) || (8.05-9.60) || (9.13-11.0) |] (10.3-12.5) || (11.9-14.8) || (13.2-16.7) dda 3.65 442 5.60 6.57 7.97 9.14 10.4 11.7 13.7 15.3 'Y || (3.38-3.95) || (4.10-4.78) || (5.18-6.06) | (6.06-7.11) |] (7.32-8.62) || (8.33-9.89) || (9.40-11.3) |} (10.5-12.8) || (12.1-15.0) || (13.4-16.9) 7-da 4.31 5.18 6.44 7.48 8.97 10.2 1.5 12.9 14.9 16.6 'Y || (4.02-4.65) || (4.83-5.59) || (5.99-6.94) | (6.93-8.05) || (8.26-9.65) || (9.35-11.0) || (10.5-12.4) |] (11.7-14.0) || (13.3-16.3) || (14.6-18.2) 10-day 4.94 5.90 7.23 8.32 9.85 11.41 12.4 13.8 15.8 17.4 Y || (4.62-5.31) || (6.52-6.34) |] (6.75-7.76) | (7.74-8.92) || (9.13-10.6) |] (10.2-11.9) || (11.4-13.4) || (12.6-14.9) |] (14.2-17.2) || (15.4-19.0) 20-da 6.68 7.92 9.46 10.7 12.3 13.6 14.9 16.2 17.9 19.2 Y || (6.28-7.12) || (7.45-8.44) || (8.88-10.1) || (9.99-11.4) || (11.5-13.1) |] (12.6-14.5) || (13.8-15.9) |] (14.9-17.3) |] (16.3-19.3) || (17.4-20.8) 30-da 8.33 9.83 15 12.8 14.4 15.7 16.9 18.1 19.6 20.7 'Y || (7.87-8.80) | (9.29-10.4) |] (10.9-12.2) || (12.0-13.5) || (13.6-15.3) |] (14.7-16.6) || (15.8-17.9) |] (16.8-19.2) |] (18.2-21.0) || (19.1-22.2) 45-dat 10.6 12.4 14.3 15.8 17.6 19.0 20.4 21.6 23.3 24.4 y (10,0-11.1) (11.8-13.1) (13.6-15.1) (15.0-16.6) (16.7-18.6) (17.9-20.1) (19.2-21.5) (20.3-22.9) (21.7-24.7) (22.7-26.0) 60-da 12.7 14.9 17.0 18.6 20.6 22.0 23.3 24.6 26.1 27.2 day | (12.1-13.3) || (14.1-15.6) || (16.1-17.9) | (17.6-19.5) || (19.5-21.6) |] (20.8-23.2) || (22.0-24.6) || (23.2-26.0) |] (24.5-27.7) || (25.4-28.9) Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration

9.5) || (19.5-21.6) |] (20.8-23.2) || (22.0-24.6) || (23.2-26.0) |] (24.5-27.7) || (25.4-28.9) 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 la 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 NOAAAllas 14 document for more information, Back to Top PF graphical