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Public Information Statement: Updated

National Weather Service Headquarters Washington DC

1050 AM EST Tue Jan 30 2018


TO:      Subscribers:

         -NOAA Weather Wire Service

         -Emergency Managers Weather Information Network


         Other NWS Partners and NWS Employees


FROM:    Michelle Hawkins, Chief

         Severe, Fire, Public and Winter Weather Services Branch


         John Guiney

         Eastern Region Headquarters

         Chief, Meteorological Services Division


SUBJECT: Updated: Soliciting Comments until April 30, 2018, on

         the Days 3-7 Winter Storm Threat Index from NWS Weather

         Forecast Office (WFO) Baltimore/Washington, DC


Updated to extend the comment period to April 30, 2018


WFO Baltimore, MD/Washington, DC, is soliciting comments on the

Experimental Days 3-7 Winter Storm Threat Index through April

30, 2018. The purpose of this experimental product is to

graphically display the location and level of potential winter

storm threats in the extended portion of the forecast 3-7 days

in the future. This threat level will combine winter

precipitation probabilities and potential impact.


The experiment continues to receive positive feedback since it

began two winters ago.


The experimental Days 3-7 Winter Storm Threat Index graphic also

builds upon data generated by experimental Winter Weather

Outlooks produced by the NWS Weather Prediction Center (WPC).


The experimental Days 3-7 Winter Storm Threat Index will be

posted on the NWS Baltimore/Washington winter web page at:


WFO Baltimore/Washington will issue this experimental product at

least twice daily at 0900 and 2100 Coordinated Universal Time

(UTC) and as needed. No communication system changes are

required to receive this information.


Additional information and an example of the experimental

product are provided at the link below:


Comments may be submitted via the survey link below. The link

will also be provided on the NWS Baltimore/Washington winter 

web page:


If comments are favorable, this experiment will be evaluated for

possible expansion to other NWS offices. An additional

opportunity for comment/review will be provided before a

decision to expand. If you have questions, please contact:


Christopher Strong

Warning Coordination Meteorologist

NWS Baltimore/Washington




NWS Public Information Statements are online at: