About the Forecast

The forecast used for the Manure Spreading Advisory (MSA) comes from model precipitation prediction data by NOAA. This data is updated at least once daily.

Click HERE to read more about how NOAA derives and assesses precipitation data.

NOAA disclaimer on use of forecast data.

Click here for more weather links and information.

This page was last modified on 12/07/12 - 16:15

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The MSA Forecast

Current Manure Setback Distance (for all forms of manure):

April

40 ft.

April 2019 - Rain returns this week, with heavy rain expected late week. High risk manure applications are prone to runoff in this type of system. Setbacks should be at least 40 feet from waterways until May/June. Look at the MSA map before every application. Fill out an ARM Worksheet prior to application (link on MSA map) and/or if rain is in the forecast or if you might have wet, saturated field conditions.

Irrigation water application can act just like a rain event. For help with irrigation, check out the Irrigation Scheduler tool from WSU: http://weather.wsu.edu/is/.

To prevent the risk of a runoff or leaching event, and maximize application timing, follow an Application Risk Management (ARM) plan. If you do not have an ARM plan, contact WCD today to request a field evaluation.

Keep an eye on the weather forecast for both rain events and flooding (https://www.nwrfc.noaa.gov/rfc/).

Caution needs to be taken when applying manure during high risk times. Heavy precipitation can move applied nutrients into the groundwater or off of your field and into nearby swales, ditches, and/or waterways. If this happens, you can be put under the CAFO permit.

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The MSA Forecast

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