We will be shipping rewards throughout the month of April. Tracking info will be emailed when your package has shipped.

Last updated: May 25, 2020 14:25

Write us at [email protected] or open a ticket from our help center: help.weatherflow.com

Last updated: May 25, 2020 14:25

This project is US-friendly, Canada-friendly, EU-friendly and Australia-friendly. Rewards bound for the EU will ship from within the EU. Rewards bound for other countries will ship from within those countries. Duties and taxes are pre-paid by WeatherFlow.

Last updated: May 25, 2020 14:25

The ‘Remote Kit’ and ‘Storm and Fire Ready Kit’ system versions are still in development and will not be available until summer 2020. If you really want to upgrade and wait for one of the other versions, please email us at: [email protected] and we’ll help you out.

Last updated: May 25, 2020 14:25

There are two base attachments for the Tempest device, a flat base (standard 1/4”-20 thread & keyhole slot) and the pole mount (fits a nominal 1” mast). Find a location with as much exposure to wind, rain and sun as possible. Avoid areas where air might be stagnant (enclosed areas, under trees, porches) and avoid proximity unnatural moisture and heat sources and sinks (exhaust vents, central air units). You can find a full siting and installation guide available in our help center.

Last updated: May 25, 2020 14:25

The Tempest is designed to fit on top of a pole with an outer diameter of 1.25 inches or 1.32 inches (31.75mm or 33.53 mm). The specific standard is known as “NPS 1” in the US or “NB 1” in the UK. In most of the rest of the world it’s also known as “DN 25.” It should be a very common pole size everywhere. In the US it’s sold at hardware stores in various materials-simply ask for a “one inch” pole.

Last updated: May 25, 2020 14:25

The most commonly purchased system utilizes WiFi to enable full performance. Most people place their Tempest at home and connect to a home WiFi network. Doing this will enable consistent weather data to flow into our servers and allow remote data access, and the network-based AI forecasting. Our HUB also broadcasts data locally over UDP and BLE, allowing you to access the raw data without internet connection.

If you don’t have WiFi or prefer to have a system that is not dependent on it you will need to purchase one of the Rewards that features our remote/cellular hub.

Last updated: November 14, 2019 13:03

Yes, the WeatherFlow Tempest app is required to setup and configure the smart weather devices. The Tempest app is available in both the iOS and Android app stores for free. The app serves as your daily weather data viewer. You can also view your data through our web app, as well as other integrated weather apps.

Last updated: May 25, 2020 14:25

Absolutely! The Tempest app will be available on iOS or Android. Search for “WeatherFlow Tempest” in your app store.

Last updated: May 25, 2020 14:25

Most of them. WeatherFlow devices are compatible with all iOS 9.0+ and Android 4.3+ devices with Bluetooth Low Energy support for direct connection to the devices. If the device is connected to your home WiFi network, your data is pushed automatically to the cloud. Then anyone / any connected device can view the data via the WeatherFlow app or a variety of integrated weather and smart home apps.

Last updated: November 14, 2019 13:03

Yes, you can publish your weather station data directly to Weather Underground via a direct integration in the app.

Last updated: May 25, 2020 14:25

Nope! Unlike technology offered by others, you can easily and instantly view your Tempest data on your smartphone, tablet, laptop, computer or virtually any device with a web browser. You can also ask Siri, Amazon Alexa, or Google Assistant for your data. If you want a full-time display, you can repurpose an unused tablet or iPad and run the app in “full screen” mode that is designed to serve as a full time display.

Last updated: May 25, 2020 14:21

Unconditional Return Policy - Tempest comes with a 60 day money back guarantee, no questions asked. Better Forecast Guarantee - Tempest guarantees an improved weather forecast for your location. If you aren’t blown away, simply return it within 8 months of use. Two Year Warranty - We stand behind all hardware components. If something stops working in the first two years, we’ll replace it. Ten Year Extended Warranty - If your Tempest fails at anytime, we will replace it with the latest technology at a greatly reduced cost.

Last updated: November 14, 2019 13:03

The initial Tempest system shipping in March utilizes external power and a standard WiFi connection. You will need a back-up power supply to ensure that both remain in operation during a power outage. If your internet goes down you will need to switch the WiFi connectivity to cellular data device. We will offer a Hub in the future that can utilize the cellular network directly and, combined with either a small back-up power battery or the remote Hub solar enclosure, it will function without power or home internet.

If you live in an area at risk for wildfire danger or wind storms we recommend purchasing one of the remote/cellular Hub options. This will ensure data will continue to flow during those critical times.

Last updated: November 14, 2019 13:03

Yes! Over four years of design and testing we have perfected our view of the ideal passive radiation shield. Tempest retains a compact design while creatively utilizing space and flow to closely match results from both aspirated and bulky radiation shields without adjustment more than 99% of the time. Even in hot, still conditions Tempest can correct measurements based on wind speed and solar irradiance in order to provide an accurate temperature in ALL conditions. We have proven in real world testing that we consistently provide an accurate temperature reading within one tenth of a degree.

Last updated: November 14, 2019 13:03

Of course! Tempest integrates with the Apple ecosystem in a number of ways. Besides the Tempest app, which runs on any iPhone or iPad running iOS 9.0 or newer, there are also Tempest apps for Apple Watch and Apple TV. Tempest also works with Siri, so you can check the weather using voice commands.

Last updated: May 25, 2020 14:21

This system does not measure snow, but it does shed snow well – we apply a special super hydrophobic coating to the anemometer parts.

Last updated: November 14, 2019 13:03

The Tempest communicates with the HUB via sub-GHz telemetry radios and can maintain a connection up to 300 meters (1000 ft+) in unobstructed, clear line of sight. The HUB connects to your WiFi network and may be placed in any convenient location in your home with reasonable proximity to your router (similar to any other WiFi connected devices wireless connected devices).

Last updated: May 25, 2020 14:21

Yes.

Last updated: May 25, 2020 14:25

All values are reported on a one-minute average cycle. Lightning events and rain start events are reported instantaneously, upon detection. Instantaneous wind speed & direction are reported every three seconds.

Last updated: May 25, 2020 14:21

No, at least not yet. The app and website will display your weather data. If you want a dedicated display now, you can use a simple tablet and enable “full screen” and “always on” display mode settings.

Last updated: May 25, 2020 14:25

Yes. You can see your own weather station via our Android and iOS apps or via our website at smartweather.weatherflow.com. You also get a personal weather web page that you can share with friends and family, who can use any connected device to view data from your Tempest. iPad? Yes. iPhone? Yes. Android phone or tablet? Yes. Computer? Yes. Anything with a browser!

Last updated: May 25, 2020 14:21

Tempest measures wind speed and direction based on the time of flight of sonic pulses between pairs of transducers located on the underside of the roof over the gap near the top of the device. This technology allows for a high degree of accuracy, especially in variable wind conditions. See Kickstarter main page for a diagram.

Last updated: May 25, 2020 14:21

Tempest uses a patent-pending haptic rain sensor in the top of the device. Tempest measures and counts each falling raindrop. This allows Tempest to report the instant rain begins falling, the current intensity, and the total rain accumulation over time. Accuracy compares to a tipping bucket, but without malfunctions caused by accumulating leaves or debris.

Last updated: May 25, 2020 14:21

Tempest detects cloud-to-ground AND cloud-to-cloud activity thru an embedded lighting sensor which detects electrical transmissions from lightning activity up to 40km (approx. 25 miles) away and gives an estimate of distance. The sensor algorithm is smart enough to reject man-made signals, such as microwave ovens and motors.

Last updated: May 25, 2020 14:21

The Tempest enclosure is made from a marine-grade, UV-resistant plastic produced to last for many years. The shape of Tempest is designed to keep water out and, just in case water does get in (whether through condensation or extreme conditions), the circuit boards and sensitive parts within Tempest are hermetically sealed with a urethane overmold to provide 100% water protection.

Last updated: May 25, 2020 14:21

Yes, the WeatherFlow app is required to setup and configure the smart weather devices. The app also serves as your daily weather data viewer. Once set up, you can also view your data through our web app, as well as other integrated weather apps.

Last updated: May 25, 2020 14:21

Absolutely! The Tempest app will be available on iOS or Android. You can download the app that powers the previous generation weather station now. Search for “WeatherFlow Smart Weather” in your app store.

Last updated: May 25, 2020 14:21

Tempest comes equipped with two mounting base options. One is designed to mount the Tempest on top of a standard 1” pole (our customers commonly use 1” PVC pipe, or the galvanized ‘fence top rail’ found at HomeDepot). The second mount is a flat base with both a standard 1/4-20 thread and simple keyhole slot to attach to a screw head. Many of our customers use this: https://www.amazon.com/Security-Adjustable-Outdoor-Compatible-Dropcessories/dp/B06X6H8QDY

Last updated: May 25, 2020 14:21

The Tempest is designed to fit on top of a pole with an outer diameter of 1.25 inches or 1.32 inches (31.75mm or 33.53 mm). The specific standard is known as “NPS 1” in the US (and Canada?) or “NB 1” in the UK. In most of the rest of the world it’s also known as “DN 25”. It should be a very common pole size everywhere. In the US it’s sold at DIY stores in various materials-if you ask for a “one inch” pole.

Last updated: May 25, 2020 14:21

Yes. You can publish your weather station data directly to Weather Underground.

Last updated: May 25, 2020 14:21

Yes. Tempest is solar powered (charges onboard lithium titanate battery) and communicates to our indoor hub via long range radio telemetry. The typical range is up to 1000ft (300m) from your Tempest and the Hub, depending on obstacles between them.

Last updated: May 25, 2020 14:21

Yes! Over four years of design and testing we have perfected our view of the ideal passive radiation shield. Tempest retains a compact design while creatively utilizing space and flow to closely match results from both aspirated and bulky radiation shields without adjustment more than 99% of the time. Even in hot, still conditions Tempest can correct measurements based on wind speed and solar irradiance in order to provide an accurate temperature in ALL conditions.

Last updated: May 25, 2020 14:21

This project is US-friendly, Canada-friendly, EU-friendly and Australia-friendly. Rewards bound for the EU will ship from within the EU. Rewards bound for other countries will ship from within those countries. All duties and taxes are pre-paid by WeatherFlow. Your pledged amount (reward + shipping) is all you pay.

Last updated: May 25, 2020 14:21

Yes! There is less daylight in the Alaskan winter but this is counteracted by the vertically oriented solar panels, which are advantageous for a lower angle of the sun. Just a handful of daylight hours will charge the onboard lithium titanate battery with enough juice for a few weeks of operation, even with zero additional sunlight.

Last updated: May 25, 2020 14:21

Under the included base data plan the remote Tempest station will post a new observation at least once every 15 minute. This is the upload rate needed to fuel our data analysis. Data is transmitted continuously at the local level via BLE and WiFi. If you prefer more frequent updates you may opt to upgrade your data plan. We do not yet know our pricing structure for more frequent reporting but rest assured that your satisfaction with the product is covered under a full money back guarantee.

Last updated: May 25, 2020 14:21

The Tempest sensor device should be placed in full sun with the cleanest unobstructed wind fetch you can manage at your location. Typically best results are achieved when the device is mounted at 10ft above surface obstructions. That said, it’s your house, your weather. Wherever you site the device, it will measure the exact conditions right there. Don’t worry about meeting WMO standards!

Last updated: May 25, 2020 14:21