De Kalb Severe Watches & Warnings NOAA Weather Radio

Public Information Statement
Statement as of 11:43 am CDT on April 1, 2015

... New impact based warnings effective today...

NWS is accepting comments beginning Wednesday April 1... 2015 and
continuing through Wednesday November 4... 2015 on an expansion of
its experimental impact based warnings. All 38 NWS central region
weather forecast offices (wfos)... 19 southern region wfos... 7
eastern region wfos... and 3 western region wfos will issue enhanced
convective warnings. A list of participating offices and local
points of contact is online at:


This is an expansion of the experimental impact based warning
demonstration begun in 2014:


Severe Thunderstorm Warning (svr)... Tornado Warning (tor) and severe
weather statement (svs) products will be stratified into categories
distinguishing extreme cases from base convective warnings.
Additional enhanced wording will be included to convey information
about associated impacts... specific hazards expected... and
recommended actions... both within the bullet statements and as part
of the tag line codes. Additional information and product examples
are online at:


A product description document (pdd) outlining the products is
online at:


Based on demonstration results... the impact based warnings are being
considered for implementation on a National basis. Please submit
comments on the proposed National implementation to:


After the experimental period is completed and the comment period
closes... NWS will evaluate all comments to determine whether to
implement the experimental impact based warnings as operational

For more information... please contact:

John ferree
NWS severe storms services
Norman, OK 73072

National service change notices are online at:


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