Public Information Statement
Issued by NWS Boston, MA

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000 NOUS41 KBOX 251739 PNSBOX CTZ002>004-MAZ002>024-026-RIZ001>008-260539- Public Information Statement National Weather Service Boston/Norton MA 139 PM EDT Mon Apr 25 2022 To: Subscribers: -NOAA Weather Wire Service -Emergency Managers Weather Information Network -NOAAPort Other NWS Partners and NWS Employees From: Kate Abshire, Acting Chief Marine, Tropical and Tsunami Services Branch Subject: Tropical Cyclone Watch/Warning Product (TCV) Collaboration Testing April 25-29, 2022 The National Weather Services (NWS), National Hurricane Center (NHC), Weather Prediction Center (WPC), Ocean Prediction Center (OPC), and Weather Forecast Offices (WFOs) in the NWS Eastern and Southern Regions will proceed with internal software and hardware testing of the National Tropical Cyclone Watch/Warning (TCV) product collaboration process April 25-28, 2022. Test activities are expected to be conducted each day between 1600 UTC and 1900 UTC. Friday, April 29, 2022 is a designated backup day. The National TCV product contains a summary of collaborated wind and/or storm surge watches and warnings, depicted by NWS-defined geographic zones. Internal TCV test products are not intended to be released externally through NWS dissemination and communication systems. The text products affected by collaboration testing are the National TCV products issued under the following AWIPS Product Identifiers (PIL) and World Meteorological Organization (WMO) Identifiers (ID): TCV Product AWIPS PIL WMO ID ------------ --------- ------- Preliminary TCV PTCAT/1-5/ WTNT/81-85/ KNHC National TCV TCVAT/1-5/ WTNT/81-85/ KNHC In addition, the following National Digital Forecast Database (NDFD) elements will be created for this test: - Tropical cyclone wind probabilities (incremental and cumulative) for 34 kt, 50 kt, and 64 kt - Hazard grid (including tropical storm, hurricane, and storm surge hazards) While unlikely, there is a slight chance that the tropical expressions of uncertainty (i.e., Tropical Storm Conditions Likely, Hurricane Conditions Possible) could unintentionally appear on Point and Click forecast pages temporarily because this test includes the internal creation of tropical wind speed probabilities. The NWS will continue periodic internal tropical software testing during the remainder of this hurricane season as needed. For more information, please contact: Andy Nash Meteorologist-in-Charge National Weather Service Boston/Norton 508-622-3250x222 National Public Information Statements are online at: $$ is the U.S. government's official web portal to all federal, state and local government web resources and services.