Best King County Flood Warning Apps

249+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated August 2026

King County Flood Warning is the household name in king county flood warning, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top King County Flood Warning Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1King County Flood WarningKing County Flood WarningFree3.7★ (3)NoNoMay 2026
2Rivercast: River Levels USARivercast: River Levels USAFree4.7★ (11K)YesYesAug 2026
3Flood Alert WatcherFlood Alert WatcherFree4.8★ (5)YesYesJul 2026
4Emergency: Severe Weather AppEmergency: Severe Weather AppFree4.8★ (7.2K)NoNoAug 2026
5KING 5 News for Seattle/TacomaKING 5 News for Seattle/TacomaFree4.7★ (32K)YesNoAug 2026
6Storm ShieldStorm ShieldFree4.8★ (111K)YesYesAug 2026
7FEMAFEMAFree3.7★ (1K)NoNoAug 2026
8KIRO 7 NewsKIRO 7 NewsFree4.5★ (12K)YesNoAug 2026

Top Picks for King County Flood Warning

Rivercast: River Levels USA#2

Rivercast: River Levels USA by Juggernaut Technology, Inc.

NOAA Forecasts & Flood Alerts
Strong Contender
☀️ Weather
4.7😊(11K ratings)
FreeAdsIn-App Purchases
#77in Weather
Rivercast: River Levels USA screenshot 1
Rivercast: River Levels USA screenshot 2
Rivercast: River Levels USA screenshot 3
Rivercast: River Levels USA screenshot 4
Rivercast: River Levels USA screenshot 5
Rivercast: River Levels USA screenshot 6

Monitor river levels, flow rates, and flood warnings with real-time data and forecasts. Get custom alerts for your favorite waterways and visualize trends with interactive graphs. Essential for anyone living, working, or recreating near water.

What We Love

  • 🚀 Great app
  • 👍 Easy to navigate
  • 👍 Helpful for monitoring river levels
  • 👍 Useful for fishing and boating

Room to Improve

  • 🐛 Data not always up-to-date
  • 🔒 Paid subscription required for full functionality
  • 🔒 Can't view more than 30 hours of data without premium
Flood Alert Watcher#3

Flood Alert Watcher by John Benson

Flood Alerts & Warnings
Worth Considering
☀️ Weather
4.8(5 ratings)
FreeAdsIn-App Purchases
Flood Alert Watcher screenshot 1
Flood Alert Watcher screenshot 2
Flood Alert Watcher screenshot 3
Flood Alert Watcher screenshot 4
Flood Alert Watcher screenshot 5
Flood Alert Watcher screenshot 6

Receive real-time flood alerts and weather warnings for the UK. View interactive flood maps, understand warning levels, and get peace of mind with trusted data from the Environment Agency.

More King County Flood Warning apps to explore

4
Emergency: Severe Weather App
Emergency: Severe Weather App
Emergency: Severe Weather App
Alerts, Maps, Radar & Shelters
Free

Stay safe during extreme weather and disasters with real-time alerts, interactive preparedness guides, and essential tools. This app provides official weather notifications, live maps, and helps locate shelters and services when you need them most.

Real-time severe weather alertsInteractive preparedness guidesPersonalized checklists
☀️ Weather
(7.2K)
free with in-app purchases
5
KING 5 News for Seattle/Tacoma
KING 5 News for Seattle/Tacoma
KING 5 News for Seattle/Tacoma
Breaking news & video
Free

Access breaking news, personalized feeds, and live video from the Seattle/Tacoma area. Get real-time alerts, detailed weather forecasts, and exclusive mobile video content. Stay informed with local investigations and reporting.

Breaking news alertsPersonalized news feedLive newscasts
📡 News
(32K)
ad-supported
6
Storm Shield
Storm Shield
Storm Shield
Severe Weather Alerts & Radar
Free

Receive precise, location-based severe weather alerts for tornadoes, hurricanes, floods, and more. Get voice and push notifications, view radar maps, and access forecasts. Optional premium features offer advanced radar imagery and lightning alerts.

Location-based severe weather alertsVoice and push notificationsHi-Def radar map
☀️ Weather
(111K)
free with in-app purchases
7
FEMA
FEMA
FEMA
by Federal Emergency Management Agency (FEMA)
Free

This app provides essential tools and information for disaster preparedness, safety, and recovery. Receive real-time alerts, access guidance on emergency plans and kits, and find information on disaster assistance.

Real-time weather and emergency alertsDisaster preparedness guidanceActionable safety advice
☀️ Weather
(1K)
free
8
KIRO 7 News
KIRO 7 News
KIRO 7 News
by Cox Media Group
Free

Stay informed with breaking news and developing stories across Western Washington. Receive location-targeted alerts, stream live newscasts, and get detailed weather and traffic updates to plan your day.

Breaking news alertsLocation-targeted alertsLive newscast streaming
📡 News
(12K)
ad-supported
9
My Flood Risk
My Flood Risk
My Flood Risk
by HKV Lijn in Water B.V.
Free
📚 Education
(0)
10
AIoT - Based Flood Warning
AIoT - Based Flood Warning
AIoT - Based Flood Warning
AIoT-Flood Warning System_DATS
Free
☀️ Weather
(0)
11
Missouri Flood & Drought
Missouri Flood & Drought
Missouri Flood & Drought
Real-time flood and drought
Free

Stay informed about real-time flood and drought conditions across Missouri. Receive personalized notifications for flood alerts in your chosen locations and access comprehensive maps and data from trusted sources.

Real-time water monitoringPersonalized flood notificationsInteractive flood and drought maps
☀️ Weather
(2)
free
12
Flood Early Warning
Flood Early Warning
Flood Early Warning
by Shannon Clarke
Free
☀️ Weather
(0)
13
My Flood Policy
My Flood Policy
My Flood Policy
Flood Insurance, Simplified
Free
💼 Business
(0)
14
Flood Check
Flood Check
Flood Check
Windward stream and tide data
Free
☀️ Weather
(0)
15
Fulton County EMO
Fulton County EMO
Fulton County EMO
Fulton County EMO
Free
🔍 Reference
(0)
16
Flood Report
Flood Report
Flood Report
by Matt Shapiro
Free
☀️ Weather
(0)
17
FloodWatch
FloodWatch
FloodWatch
Real-time river and flood data
Free

Monitor real-time river and flood data across the United States. Track river height, discharge, precipitation, and water temperature with data from USGS and NWS. Ideal for property owners, outdoor enthusiasts, and anyone needing flood awareness.

Real-time river dataHistorical trends and graphsFavorites list for gauges
☀️ Weather
(280)
free with in-app purchases
18
Flood ZN
Flood ZN
Flood ZN
Property Flood Zone Check
Free

Access industry-exclusive flood mapping technology to check property flood zones. Ideal for homebuyers, real estate agents, lenders, and investors. Create a free account to verify flood zone accuracy and request official determinations processed by flood professionals.

Flood mapping technologyProperty address searchFlood zone visualization
🔍 Reference
(0)
free
19
MOCO Now
MOCO Now
MOCO Now
True local public safety news
Free

Get real-time updates on breaking news, critical alerts, traffic, and weather for Montgomery County, Texas. Stay informed about your community with instant notifications and essential local information.

Breaking news alertsCritical emergency notificationsReal-time traffic updates
📡 News
(80)
ad-supported
20
Stevens County Connect WA
Stevens County Connect WA
Stevens County Connect WA
Stevens Connect
Free
🔍 Reference
(0)

FAQ about King County Flood Warning

What are the best king county flood warning apps for iPhone?
King County Flood Warning tops our king county flood warning apps ranking as of August 2026, with a 3.7-star average from 3 App Store ratings, and it's free to download.
Yes — 20 of the top king county flood warning apps we rank are free to download, including King County Flood Warning and Rivercast: River Levels USA.
King County Flood Warning has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 249+ king county flood warning apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
King County Flood Warning provides real-time flooding information for the Skykomish, Snoqualmie, Tolt, Raging, Cedar, Green, and White rivers, as well as Issaquah Creek.
The app uses data from the U.S. Geological Survey and National Weather Service, which is downloaded every 10 minutes. However, the source data update timing may vary.