# NDAWN Inversion

> Real-time weather inversion alerts for agricultural spraying decisions. (iPhone/iPad app by North Dakota State University.)

- Source: https://appshunter.io/ios/app/ndawn-inversion/id1385751300 (this page in markdown: same URL + `.md`)
- Developer: [North Dakota State University](https://appshunter.io/developer/493125863)
- Category: Weather
- Price: Free
- Rating: 4.70/5 from 7 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 28 MB
- Languages: American English
- Released: 2018-06-10
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ndawn-inversion/id1385751300/reviews.md

## What is NDAWN Inversion?

Real-time weather data from the North Dakota Agricultural Weather Network (NDAWN) is used to detect low-level air temperature inversions.  An air temperature inversion occurs when the air temperatures near the ground are colder than the air above.  The cooler and therefore, denser air, may make spray particles drift off target, often referenced as spray drift.  Because spraying during an air temperature inversion is in violation of label instructions, this app, once an inversion is detected, sends a push notification to the user informing them that spraying may longer be advisable.  These inversion alerts are resent occasionally until the inversion is no longer present for the station selected.  Besides inversion alerts, weather data, including wind speed and temperature data which is also critical information while spraying is available.  All NDAWN stations update current weather conditions every 5 minutes.

## Key features

- Real-time inversion detection
- Push notifications for spraying advisories
- Wind speed and temperature data
- Updates every 5 minutes
- Supports selected stations


## Frequently asked questions about NDAWN Inversion

### What is NDAWN Inversion?

NDAWN Inversion is a weather application that monitors real-time data from the North Dakota Agricultural Weather Network to detect low-level air temperature inversions. It alerts users when spraying may no longer be advisable due to potential spray drift.

### How often does NDAWN Inversion update weather data?

All NDAWN stations update current weather conditions every 5 minutes, ensuring you have the most up-to-date information for your spraying decisions.

### What devices does NDAWN Inversion support?

NDAWN Inversion is available on iPhone, iPad, and iPod devices.

### Is NDAWN Inversion free to use?

Yes, NDAWN Inversion is completely free to download and use, with no in-app purchases or advertisements.

### What is the age rating for NDAWN Inversion?

NDAWN Inversion has an age rating of 4+, making it suitable for a wide range of users.

### How does NDAWN Inversion help prevent spray drift?

By detecting air temperature inversions, which can cause spray particles to drift off target, the app notifies users when spraying might violate label instructions and lead to unintended drift.

### What kind of weather data does NDAWN Inversion provide besides inversion alerts?

In addition to inversion alerts, the app provides critical weather data such as wind speed and temperature, which are essential for making informed spraying decisions.

### When was NDAWN Inversion last updated?

The latest version of NDAWN Inversion was released on June 5, 2024, indicating ongoing support and potential improvements.

## Version history (last 5 releases)

### 1.4 — 2024-06-05

Design Update
• We've refreshed the app's design for a cleaner, more intuitive user experience.
NDAWN Weather Maps
• DELTA T Map: Monitor temperature differences across the region.
• Wind Speed Map: Wind speed data to stay informed.
• Two-Day Precipitation Map: Total rainfall measured in inches since yesterday.
• Current Temperature Map: Stay updated with the latest temperature readings in your area.
Bug Fixes
• We've squashed some minor bugs to enhance app performance and stability.

### 1.3 — 2021-11-11

We've made general updates to the application to accommodate the latest functionality surrounding the recent operating system update.

### 1.2 — 2019-08-09

Weather Stations now include a Delta T indicator.
Yesterday's rain values are now available.
Updates to our list of sponsors.
Minor updates and improvements.

### 1.1 — 2019-05-07

New screenshots
Bug fixes

### 1.0 — 2018-06-06

No release notes.

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## More apps by North Dakota State University

- [NDSU Pest Management](https://appshunter.io/ios/app/ndsu-pest-management/id859312458)
- [Small Business Disaster Plan](https://appshunter.io/ios/app/small-business-disaster-plan/id958227092)
- [NDSU Grazing Calculator](https://appshunter.io/ios/app/ndsu-grazing-calculator/id1213526389)
- [NDAWN Potato Blight](https://appshunter.io/ios/app/ndawn-potato-blight/id1274663369)
- [Gypsum Requirement](https://appshunter.io/ios/app/gypsum-requirement/id1299303426)

All apps by North Dakota State University: https://appshunter.io/developer/493125863

## Related topics

[ndawn inversion](https://appshunter.io/ios/topics/ndawn-inversion) · [ndawn](https://appshunter.io/ios/topics/ndawn) · [course sniper](https://appshunter.io/ios/topics/course-sniper)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*