# ---------------------------------- Disclaimer ----------------------------------------- # The reservoir data contained in this file are best estimates generated by the Texas # Water Development Board(TWDB) using data collected by various data providers as well # as by TWDB. For a detailed explaination of the methodology used please visit: # # http://waterdatafortexas.org/reservoirs/methodology # # TWDB makes no warranties(including no warranties as to merchantability or fitness) # either expressed or implied with respect to the data or its fitness for any specific # application. # --------------------------------------------------------------------------------------- # # Definitions: # reservoir_storage = actual storage at measured lake elevation # dead_pool_capacity = storage at dead pool elevation # conservation_capacity = storage at conservation pool elevation - dead pool capacity # conservation_storage = reservoir storage - dead pool capacity (note: conservation storage is capped at conservation capacity) # percent_full = 100 * conservation storage/conservation capacity # # for more detailed explanations see http://waterdatafortexas.org/reservoirs/glossary # # Estimated daily average data for Halbert Lake # generated: 2025-05-24T01:01:31.582791 UTC # url: http://www.waterdatafortexas.org/reservoirs/individual/halbert-30day.csv # # Footnote: # The elevation-storage rating curve used to produce the storage # hydrograph is made of two segments: (1) the segment up to the # conservation pool top (below the red line) is based on measured data, # and (2) the segment in the flood pool (above the red line) is an # extrapolation from the first segment and shouldn't be relied upon for # flood storage information. # # Data from 2025-04-23 00:00:00 to 2025-05-23 23:30:00 is marked as provisional by the USGS. # # Elevation-Area-Capacity rating curve(s) used: # http://www.waterdatafortexas.org/reservoirs/individual/halbert/rating-curve/TWDB/1999-02-01 # # Conservation pool elevation(s) used: # 368.0 feet above NGVD29 (Start date: 1950-01-01) # 367.0 feet above NGVD29 (End date: 1950-01-01) # # Dead pool elevation(s) used: # None # # Vertical datum(s) used: # NGVD29 # # Units: # date: YYYY-MM-DD # water_level: feet above vertical datum # surface_area: acres # storages: acre-feet # # date,water_level,surface_area,reservoir_storage,conservation_storage,percent_full,conservation_capacity,dead_pool_capacity 2025-04-23,366.83,550.58,5373,5373,89.1,6033,0 2025-04-24,367.23,559.86,5595,5595,92.7,6033,0 2025-04-25,368.02,,6044,6033,100.0,6033,0 2025-04-26,367.66,569.89,5838,5838,96.8,6033,0 2025-04-27,367.43,564.52,5707,5707,94.6,6033,0 2025-04-28,367.28,561.02,5623,5623,93.2,6033,0 2025-04-29,367.16,558.23,5556,5556,92.1,6033,0 2025-04-30,367.33,562.19,5651,5651,93.7,6033,0 2025-05-01,367.92,581.01,5987,5987,99.2,6033,0 2025-05-02,367.57,567.79,5787,5787,95.9,6033,0 2025-05-03,367.35,562.65,5662,5662,93.9,6033,0 2025-05-04,367.22,559.63,5589,5589,92.6,6033,0 2025-05-05,367.13,557.54,5539,5539,91.8,6033,0 2025-05-06,367.52,566.62,5758,5758,95.4,6033,0 2025-05-07,367.90,575.51,5975,5975,99.0,6033,0 2025-05-08,367.56,567.55,5781,5781,95.8,6033,0 2025-05-09,367.35,562.65,5662,5662,93.9,6033,0 2025-05-10,367.22,559.63,5589,5589,92.6,6033,0 2025-05-11,367.12,557.30,5533,5533,91.7,6033,0 2025-05-12,367.05,555.68,5494,5494,91.1,6033,0 2025-05-13,367.00,554.52,5467,5467,90.6,6033,0 2025-05-14,366.95,553.36,5439,5439,90.2,6033,0 2025-05-15,366.91,552.43,5417,5417,89.8,6033,0 2025-05-16,366.87,551.51,5395,5395,89.4,6033,0 2025-05-17,366.86,551.27,5389,5389,89.3,6033,0 2025-05-18,366.88,551.74,5400,5400,89.5,6033,0 2025-05-19,366.86,551.27,5389,5389,89.3,6033,0 2025-05-20,366.84,550.81,5378,5378,89.1,6033,0 2025-05-21,366.81,550.12,5362,5362,88.9,6033,0 2025-05-22,366.79,549.65,5351,5351,88.7,6033,0 2025-05-23,366.77,549.19,5340,5340,88.5,6033,0