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Drift Risk Advisor

Step 1: Select your closest Mesonet site.

Step 2: Select your request type

Step 3: Select a time period

Data Range End Date/Time
  • Results will be shown for the data range before this date and time.
  • The current date and time will be used if no value is entered

Step 4: Set the limits according to your product label.
* Indicates required fields

Lower Limit
Upper Limit

Average Wind Speed* (mph)

Air Temperature (°F)

Relative Humidity (%)

A relative humidity below 50% warrants caution, especially for temperatures over 75°F or fine droplets smaller than 150 microns. If temperatures are cooler or droplets are larger, lower humidity values might be acceptable.

Maximum 1-hr Rainfall (in.)

Step 5: Check allowable wind directions.

The Drift Risk Advisor is a weather-based forecast tool for planning spray applications. It does not replace the best judgement of the applicator or applicator responsibility to follow label restrictions due to actual field conditions.

About This Product

The Drift Risk Advisor is a forecast tool utilizing the North American Model (NAM). The NAM is updated 4 times a day (12am, 6am, 12pm, 6pm CST).