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Experimental Clearing Index

Experimental Clearing Index

Product Description Document

The Clearing Index is an Experimental Product that will be posted to this page for evaluation. We encourage your comments and suggestions for improvements using our Customer Satisfaction Survey. Your feedback will help us to determine product utility, if modifications are needed, and whether the product should become part of our operational suite. To submit additional comments/feedback, you may Email the webmaster


Day 1
Clearing Index and Transport Winds
(scroll down for Day 2 images)

How the Clearing Index is calculated

Clearing Index Image

Click on an area below for a zoomed in image

Clearing Index Image

South Central and
Southwest Montana

Clearing Index Image

South Central Montana
North Central Wyoming

Clearing Index Image

Southeast Montana
Northwest South Dakota


Day 2
Clearing Index and Transport Winds
(scroll up for Day 1 images)

How the Clearing Index is calculated

Clearing Index Image

Click on an area below for a zoomed in image

Clearing Index Image

South Central and
Southwest Montana

Clearing Index Image

South Central Montana
North Central Wyoming

Clearing Index Image

Southeast Montana
Northwest South Dakota

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National Oceanic and Atmospheric Administration
National Weather Service
Billings Weather Forecast Office
2170 Overland Avenue
Billings, Montana 59102-6455

Tel: (406)652-0851

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