Canyon Lake 96.2% full; Comal County drought index at 454

Residents now have three official Nov. 2 water readings: Canyon Lake was 96.2% full, while the county drought index averaged 454. Each measure describes a different condition.

By Comal.News Water, Utilities & Weather Desk · Source-linked local reporting

Published November 3, 2026 at 5:18 AM CST2 min read

Official Nov. 2 readings

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Illustrated blue reservoir beside pale, scrubby hills, with a small stream and spring in the foreground. — Illustration: A reservoir, dry shoreline and flowing spring evoke the area's separate water conditions; this does not depict a reported event.Original editorial illustration; not a photograph and does not depict the reported event or an exact property.Comal.News Visual Desk · Original illustration · Source ↗ · Comal.News original illustration ↗

On Nov. 2, Canyon Lake was 96.2% full, the Edwards Aquifer Authority reported a 639.8-foot J-17 average and 155 cubic feet per second at Comal Springs, and Comal County's drought index averaged 454.

Residents looking at local water conditions are seeing three distinct measures: reservoir storage, aquifer and spring readings, and a county drought index. A high reservoir percentage does not describe the aquifer level, spring flow or soil dryness.

Official readings dated Nov. 2, 2026; the units describe different conditions and should not be compared as one scale.
Measure	Reading	What it measures
Canyon Lake	96.2% full	Conservation storage
J-17 / Comal Springs	639.8 ft / 155 cfs	10-day aquifer-level average / 10-day spring-flow average
Comal County drought index	454	County-average KBDI

J-17 is reported in feet above sea level; spring flow is reported in cubic feet per second. KBDI is a separate drought index.

Canyon Lake storage

The Texas Water Development Board's Canyon Lake reading puts the reservoir at 96.2% of conservation storage as of Nov. 2. Residents can inspect the dated figure on the board's Canyon Lake reservoir page; it measures stored water, not the flow at Comal Springs.

Aquifer and springs

The Edwards Aquifer Authority's Nov. 2 conditions list the J-17 10-day average at 639.8 feet above sea level and the Comal Springs 10-day average at 155 cubic feet per second. One is an aquifer-level reading; the other is a flow reading. The authority's conditions page provides the readings in their original units.

EAA's Nov. 2 row lists the San Antonio Pool at Stage 3 with a 35% reduction. That is the status listed in the reading, not a newly documented stage change.

County drought index

The Texas A&M Forest Service reports a Comal County Keetch-Byram Drought Index average of 454, with readings ranging from 204 to 591. The index runs from 0 for saturated conditions to 800 for extreme drought, so it describes dryness on a different scale from reservoir fullness or spring flow. Readers can check the county figures on the Forest Service drought-index page.

The Forest Service records a five-point increase in the county drought-index average from the previous day. The next posted readings from the three agencies are the records to check for further movement in these separate measures.

Canyon Lake 96.2% full; Comal County drought index at 454

Canyon Lake storage

Aquifer and springs

County drought index

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