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Floodzilla Review: A Hyper-Local Lifeline for Northwest Residents

by Snoqualmie Valley Preservation Alliance

★5.0
IOSWeather
For anyone who lives, works, or travels near the Snoqualmie and Tolt Rivers, Floodzilla provides a critical, real-time window into water conditions. This app delivers live river level gauges, flood stage data, and forecasts directly to a mobile device. Designed to help with personal safety and trip planning, it transforms regional environmental data into actionable insights.

Detailed Review

In a market saturated with broad weather applications, Floodzilla carves out a distinct niche by offering highly specialized, location-specific hydrological data. Developed by the Snoqualmie Valley Preservation Alliance, the app serves as a direct mobile portal to the organization's network of river gauges, focusing squarely on the Snoqualmie and Tolt River watersheds in Washington State. Its primary function is not to predict rain, but to monitor its most immediate and impactful consequence: rising water. This singular focus makes it an indispensable tool for a specific geographic community, offering a level of detail that national weather services simply cannot match for local waterways. The app's core functionality revolves around live river gauge readings. Users can view current levels in feet, see the data plotted on a simple graph showing recent trends, and—most critically—understand where that level sits in relation to established flood stages. Color-coding (typically blue for normal, yellow for caution, red for flood) allows for instant visual assessment. The interface provides a straightforward list or map view of all monitored gauge locations, such as Fall City, Carnation, and Three Forks. A notable feature is the inclusion of a rudimentary forecast graph for some locations, which projects where the river level is expected to go based on recent rainfall and current conditions, aiding in preparation. In practical use, the app demonstrates clear utility for specific scenarios. A commuter checking if the Snoqualmie River is threatening to spill over roads like SR 203 before heading out would find immediate value. Homeowners in floodplain areas can use it to monitor trends during a storm, helping to decide when to move belongings to higher ground. Anglers and outdoor enthusiasts consult it to gauge river safety and conditions for recreational activities. The experience is utilitarian and focused; this is not an app for checking the weekend picnic forecast, but for making informed decisions based on a specific, dynamic environmental threat. As a relatively niche tool with no published user reviews on the App Store, broader feedback trends must be inferred from its purpose and design. However, the very existence and maintenance of such a specialized application suggest it fulfills a documented community need. Similar hyper-local alert systems often receive praise for their timeliness and reliability from engaged user bases. The lack of reviews might indicate a dedicated but small audience that relies on the tool without feeling compelled to rate it, or perhaps that its utility is so situational that ratings are not top of mind during critical usage periods. Overall, Floodzilla executes its narrow mission effectively. Its strength is undeniable for its target users: providing fast, reliable, and clear river data that can directly influence safety and logistical decisions. The main limitation is its intensely regional scope, rendering it irrelevant for anyone outside the specific river valleys it monitors. The interface, while functional, is visually basic and could benefit from more customization or alert options. For those within its coverage area, however, it is a quietly essential application, turning a smartphone into a dedicated river monitoring station that fits in a pocket.

Key Features

  • •Live River Level Gauges: Displays real-time water height in feet from a network of specific monitoring stations on the Snoqualmie and Tolt Rivers.
  • •Flood Stage Context: Color-coded indicators and clear markers show how current levels relate to official action, minor, and major flood stages.
  • •Trend Graphs: Simple charts visualize river level changes over the previous 24 to 48 hours, illustrating whether water is rising or receding.
  • •Forecast Projections: For select gauge locations, the app provides a predicted river level graph for the next 24-36 hours based on current conditions.
  • •Multi-Location View: Quickly switch between or view all monitored gauge points, including Fall City, Carnation, and Three Forks.
  • •Offline Functionality: Once loaded, key data like the latest readings and graphs remain accessible without an active internet connection.

Why Users Love It

Critical, real-time data for flood-prone areas
Simple, focused interface for quick checks

Perfect for: Perfect for residents, commuters, and emergency personnel in Washington's Snoqualmie and Tolt River valleys.

Screenshots

Floodzilla screenshot 1Floodzilla screenshot 2Floodzilla screenshot 3Floodzilla screenshot 4

Ranking History

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Current Rank

#41

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Best Rank

#41

All-time high

Average Rank

#41

30-day average

App Details

Developer

Snoqualmie Valley Preservation Alliance

Platform

ios

Rating

★5.0

Last Updated

12/11/2025