Waterline Alerts

Live elevation readings updated every 5 minutes from LCRA Hydromet and USGS gauges. Covers all 7 Highland Lakes — Buchanan, Inks, LBJ, Marble Falls, Travis, Austin, and Georgetown — plus any US lake with a USGS gauge.

Set alerts for any condition that matters to your operation: absolute elevation thresholds, rate of change (rising/falling too fast), percent of conservation capacity, outflow in CFS, or a daily morning briefing. Each trigger fires once per event with a 6-hour cooldown to prevent repeat alerts.

Receive alerts how you want them. Choose any combination of email, SMS text, WhatsApp message, phone call, and mobile push notification — configurable per trigger. Set quiet hours to silence calls overnight without missing email or push alerts.

Interactive elevation charts with 7-day, 30-day, 5-year, and all-time views. Overlays show the same-week reading from last year and the 10-year median so you can instantly see how current levels compare to historical norms.

Inflow and outflow readings from USGS and LCRA river gauges, updated every 15 minutes. Basin rainfall totals for 24-hour and 7-day windows from nearby NWS gauges. Flood stage thresholds shown on the flow panel.

A real-time combined storage banner tracks Travis and Buchanan together against LCRA's Water Management Plan drought stages — Watch, Stage 1, Stage 2, and Stage 3 — so you always know where the system stands.

Install Waterline Alerts to your iPhone or Android home screen for a native app experience. Bottom tab navigation, safe area support, and push notifications work exactly like a native app — no App Store required.

Every Sunday morning a digest email summarizes the past week's high and low levels, net change, and rainfall for all your lakes — a convenient overview without having to open the app.