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Precipitation Frequency Data Server <br />Page 1 of 4 <br />NOAA Atlas 14, Volume 11, Version 2 <br />Location name: La Porte, Texas, USA" <br />Latitude: 29.6587°, Longitude:-95.07610 <br />Elevation: 18.85 ft** <br />c�I <br />awl <br />source: ESRI Maps <br />``ro <br />' ** source: USGS <br />r m" <br />" <br />POINT PRECIPITATION FREQUENCY ESTIMATES <br />Sanja Perica, Sandra Pavlovic, Michael St. Laurent, Carl Trypaluk, Dale Unruh, Orlan Wilhite <br />NOAA, National Weather Service, Silver Spring, Maryland <br />PF tabular I PF graphical I Maps & aerials <br />PF tabular <br />PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches) <br />1 <br />Average recurrence interval (years) <br />Duration <br />��� <br />10 <br />25 <br />501 <br />100 <br />200 <br />500 <br />1000 <br />0.501 <br />0.601 <br />0.759 <br />0.894 <br />1.09 <br />1.23 <br />1.391.56 <br />1.80 <br />1.99 <br />5-min <br />(0.379-0.662) <br />(0.457-0.781) <br />(0.578-0.996) <br />(0.671-1.19) <br />(0.788-1.49) <br />(0.873-1.74) <br />(0.959-2.02) <br />(1.05-2.32) <br />(1.17-2.77) <br />0.792 <br />0.952 <br />1.21 <br />1.42 <br />1.73 <br />1.97 <br />2.22 <br />2.48 <br />2.83 <br />3.10 <br />10-min <br />(0.600-1.05) <br />(0.724-1.24) <br />(0.917-1.58) <br />(1.07-1.90) <br />(1.26-2.38) <br />(1.40-2.78) <br />(1.53-3.22) <br />(1.67-3.69) <br />(1.84-4.36) <br />(1.96-4.90) <br />15-min <br />1.01 <br />1.21 <br />1.53 <br />1.79 <br />2.17 <br />2.46 <br />2.77 <br />3.10 <br />3.57 <br />3.94 <br />(0.768-1.34) <br />(0.921-1.58) <br />1 (1.16-2.00) <br />(1.34-2.39) <br />(1.57-2.97) <br />(1.74-3.47) <br />(1.91-4.01) <br />(2.08-4.61) <br />(2.32-5.50) <br />(2.49-6.22) <br />1.47 <br />1.74 <br />2.17 <br />2.54 <br />3.06 <br />3.46 <br />3.89 <br />4.37 <br />5.07 <br />5.65 <br />30-min <br />(1.11-1.93) <br />1 (1.32-2.26) <br />(1.66-2.85) <br />(1.91-3.39) <br />(2.22-4.19) <br />(2.44-4.88) <br />(2.68-5.63) <br />(2.94-6.50) <br />(3.29-7.82) <br />(3.57-8.92) <br />60-min <br />1.93 <br />2.31 <br />2.92 <br />3.44 <br />4.17 <br />4.73 <br />5.34 <br />6.06 <br />7.13 <br />8.03 <br />(1.46-2.55) <br />1 (1.76-3.00) <br />1 (2.22-3.83) <br />(2.58-4.58) <br />(3.02-5.70) <br />(3.34-6.66) <br />(3.69-7.75) <br />(4.08-9.03) <br />(4.63-11.0) <br />(5.08-12.7) <br />2.31 <br />2.89 <br />3.76 <br />4.55 <br />5.71 <br />6.67 <br />7.73 <br />8.95 <br />10.8 <br />12.3 <br />2-hr <br />(1.75-3.03) <br />1 (2.18-3.68) <br />1 (2.87-4.90) <br />(3.43-6.04) <br />(4.17-7.82) <br />(4.74-9.39) <br />(5.35-11.2) <br />(6.03-13.3) <br />(7.00-16.5) <br />(7.79-19.3) <br />2.50 <br />3.23 <br />4.30 <br />5.29 <br />6.79 <br />8.06 <br />9.50 <br />11.1 <br />13.5 1 <br />15.5 <br />3-hr <br />(1.91-3.28) <br />(2.42-4.06) <br />(3.28-5.57) <br />(4.00-7.01) <br />(4.98-9.30) <br />(5.76-11.4) <br />(6.59-13.7) <br />(7.51-16.4) <br />(8.83-20.7) <br />(9.90-24.4) <br />2.87 <br />3.86 <br />5.26 <br />6.61 <br />8.67 <br />10.5 <br />12.5 <br />14.8 <br />18.3 <br />21.2 <br />6-hr <br />(2.20-3.76) <br />(2.88-4.77) <br />(4.03-6.77) <br />(5.01-8.71) <br />(6.40-11.8) <br />(7.51-14.7) <br />(8.72-18.0) <br />(10.1-21.8) <br />(12.0-28.0) <br />(13.6-33.2) <br />3.34 <br />4.56 <br />6.29 <br />7.94 <br />10.5 <br />12.6 <br />15.2 <br />18.2 <br />22.7 <br />26.7 <br />12-hr <br />(2.56-4.34) <br />(3.41-5.59) <br />1 (4.83-8.05) <br />(6.05-10.4) <br />(7.74-14.2) <br />(9.10-17.7) <br />(10.6-21.7) <br />(12.3-26.6) <br />(14.9-34.6) <br />(17.1-41.6) <br />3.85 <br />5.31 <br />7.39 <br />9.37 <br />12.4 <br />15.0 <br />18.0 <br />21.5 <br />2 7 1-1 <br />31.8 <br />24-hr <br />(2.97-4.99) <br />(3.99-6.48) <br />1 (5.70-9.42) <br />(7.16-12.2) <br />(9.19-16.7) <br />(10.8-20.8) <br />(12.6-25.6) <br />(14.7-31.5) <br />(17.8-41.1) <br />(20.5-49.4) <br />4.37 <br />6.11 <br />8.57 <br />10.9 <br />14.6 <br />17.7 <br />21.3 <br />25.3 <br />31.2 <br />36.0 <br />2-day <br />(3.38-5.63) <br />(4.59-7.39) <br />1 (6.64-10.9) <br />(8.40-14.2) <br />(10.9-19.7) <br />(12.9-24.7) <br />(15.0-30.3) <br />(17.3-36.8) <br />(20.6-47.0) <br />(23.2-55.7) <br />4.74 <br />6.64 <br />9.31 <br />11.9 <br />15.8 <br />19.4 <br />23.3 <br />27.5 <br />33.4 <br />38.2 <br />3-day <br />(3.68-6.10) <br />(4.99-8.00) <br />1 (7.22-11.8) <br />(9.15-15.4) <br />(11.9-21.5) <br />(14.2-26.9) <br />(16.5-33.0) <br />(18.8-39.8) <br />(22.1-50.2) <br />(24.7-58.9) <br />5.06 <br />7.04 <br />9.81 <br />12.5 <br />16.7 <br />20.4 <br />24.6 <br />28.9 IF <br />34.8 1 <br />39.6 <br />4-day <br />(3.93-6.50) <br />(5.30-8.45) <br />(7.62-12.4) <br />1 (9.64-16.2) <br />(12.6-22.6) <br />(15.0-28.4) <br />(17.4-34.7) <br />(19.8-41.7) <br />(23.1-52.3) <br />5.81 <br />7.92 <br />10.8 <br />13.7 <br />18.2 <br />22.3 <br />26.9 <br />31.4 <br />37.4 <br />42.1 <br />7-day <br />(4.53-7.43) <br />(5.96-9.46) <br />(8.43-13.6) <br />(10.6-17.7) <br />(13.8-24.6) <br />(16.5-31.0) <br />(19.1-37.8) <br />(21.6-45.2) <br />(24.9-55.9) <br />(27.4-64.7) <br />6.46 <br />8.65 <br />11.7 <br />14.7 <br />19.3 <br />23.6 <br />28.3 <br />32.9 <br />39.0 <br />43.6 <br />10tlay <br />(5.05-8.25) <br />1 (6.54-10.4) <br />(9.11-14.7) <br />(11.4-18.9) <br />(14.7-26.1) <br />(17.5-32.8) <br />(20.1-39.8) <br />(22.7-47.3) <br />(26.0-58.1) <br />(28.4-66.9) <br />8.61 <br />10.9 <br />14.2 <br />17.3 <br />22.1 <br />26.3 <br />30.9 <br />35.4 <br />41.6 <br />46.4 <br />20tlay <br />(6.77-11.0) <br />1 (8.41-13.3) <br />(11.2-17.8) <br />(13.5-22.2) <br />(16.8-29.5) <br />(19.4-36.1) <br />(22.0-43.2) <br />(24.6-50.8) <br />(27.9-61.9) <br />10.5 <br />12.8 <br />16.4 <br />19.6 <br />24.4 <br />28.4 <br />32.8 <br />37.3 <br />43.4 <br />48.2 <br />30tlay <br />(8.24-13.3) <br />1 (10.0-15.8) <br />(12.9-20.5) <br />(15.3-25.1) <br />(18.5-32.4) <br />(21.0-38.8) <br />(23.4-45.8) <br />(25.9-53.4) <br />(29.2-64.4) <br />(31.6-73.5) <br />13.2 <br />15.8 <br />19.8 <br />23.2 <br />28.1 <br />32.0 <br />36.1 <br />40.3 <br />46.1 <br />50.5 <br />45tlay <br />(10.4-16.7) <br />1 (12.5-19.6) <br />1 (15.7-24.8) <br />(18.2-29.6) <br />(21.3-37.1) <br />(23.6-43.5) <br />(25.9-50.3) <br />(28.1-57.7) <br />(31.1-68.3) <br />(33.2-76.9) <br />15.7 <br />18.4 <br />22.9 <br />26.6 <br />31.6 <br />35.4 <br />39.2 <br />43.1 <br />48.4 <br />52.5 <br />60tlay <br />(12.4-19.8) <br />(14.7-23.1) J <br />(18.3-28.8) <br />(20.9-33.9) <br />(24.0-41.5) <br />(26.1-47.9) <br />(28.2-54.5) <br />(30.2-61.6) <br />(32.7-71.7) <br />Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). <br />Numbers in parenthesis are PF estimates at lower and upper bounds of the 90 % confidence interval. The probability that precipitation frequency <br />estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. <br />Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid <br />PMP values. <br />Please refer to NOAA Atlas 14 document for more information. <br />https:Hhdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=29.6587&lon=-95.0761&dat... 7/30/2019 <br />