StormBase

StormBase is a one-time $0.99 purchase, with no nonsense subscriptions or recurring fees. It helps you track high-impact weather and space weather in one clean, fast app. Built around official NOAA and NWS products*, StormBase brings forecast outlooks, live alert maps, status feeds, and technical tools into a single workflow so you can check what matters quickly and with context.

Whether you are a weather enthusiast, spotter, pilot, forecaster, or emergency-focused user, StormBase is designed to reduce tab-hopping and keep core U.S. weather intelligence organized, current, mobile friendly, and easy to interact with. Features:

• SPC coverage in one place: Day 1-8 convective outlooks, fire weather outlooks, watches, mesoscale discussions, local storm reports, partner regional graphics, and experimental guidance.
• WPC products: PMD discussions, Excessive Rainfall Outlooks (Day 1-5), QPF Day 1-7 and multi-day totals, plus an interactive surface analysis viewer.
• CPC outlook suite: 6-10 and 8-14 outlooks, monthly/seasonal outlooks, drought outlooks, and Hazards products including Day 3-7 composite Hazards
• SWPC space weather view: SWPC alert messages and forecast scales, X-ray trends, solar probabilities, sunspot/solar region data, and numerous solar imagery loops.
• Satellite imagery: GOES East/West, Himawari, and EUMETSAT selection, multiple sectors including mesoscale, multiple bands, and animated loop playback with latest-frame start options.
• Fully interactive earthquake viewer map.
• U.S. Alerts dashboard: National alerts map plus grouped active warnings, watches, and advisories with search, filters, and sort options.
• Radar network status: Monitor radar site health, see outage/status messaging, and search/filter stations quickly.
• Soundings archive browser: View observed radiosonde products by station, date, and cycle and sounding climatology.
• Historical Events browser: NOAA SWDI historical weather events with year/month/day drill-down, event type filtering, impact sorting, metadata, and narrative views.
• NWS local forecast tools: saved U.S. locations with point forecasts, hourly graphs, active alerts, local storm reports, AFD summaries, office graphics, and recent observation history.
• NWS WFO Text Products: Browse WFO AFD/CLI/CLM/CLA bulletins by office, quick-jump search to specific WHO and product, plus ADM/ADA administrative messages.
• SPC Mesoanalysis viewer: layered SPC mesoanalysis products in a dedicated in-app browser.
• SPC Archive tools: browse archived convective outlooks, archived MCDs, archived watches, archived mesoanalysis, and archived preliminary storm reports, including historical images and report tables.
• Observations + models: MAG observations, sector/product/cycle loops, SKEWT, and MAG model guidance with run comparisons.
• Aviation Weather Center Products: METAR/TAF search plus a native AWC graphics viewer for aviation weather products.
• Moon phases page for saved or current location.
• iCloud sync across devices for favorite app pages.
• Favorites and quick access: Pin frequently used products and jump back fast.
• Customizable layout: Configure menu destinations and viewing preferences for your workflow.
• Time and refresh controls: Current UTC time, Local/UTC display options and foreground refresh behavior.
• Built-in glossary and references
• Native app language support in Japanese, Korean, French, English GB, and English AU.
• Privacy-minded design: No ad SDKs, no profiling analytics, and locally stored preferences/caches.

Widget Suite:

Favorites widget, SPC Outlook widget, Radar Status widget, WFO Bulletin widget, METAR Widgets, Situational Summary widgets (Home Screen + Lock Screen)

Data and attribution:
 StormBase uses official public weather sources including NOAA/NWS/NCEP centers.

*StormBase is not affiliated with or endorsed by NOAA/NWS.