Northeastern Illinois peak-flow update
A StreamStats migration in June of 2021 provided updates to Region 2 peak-flow frequency estimates and regional regression equations.
The peak-flow frequency estimates and regional regression equations for Illinois flood frequency region 2 (northeastern Illinois) from Over and others (2016) have been revised to make use of weighted skew coefficients (see "Revision of Over and others (2016)" below). The revised equations will be included in the next StreamStats update which is scheduled for July 8, 2021. These revisions only affect flood frequency region 2 in Illinois as described in Over and others (2016).
The revised report is available at USGS (https://doi.org/10.3133/sir20165050) and is also available at the Illinois Center for Transportation website (https://ict.illinois.edu/)
Illinois StreamStats
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Illinois StreamStats peak-flow update
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Illinois StreamStats peak-flow regression equations report now available
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