ZCZC MIAPNSNHC ALL TTAA00 KNHC DDHHMM Public Information Statement NWS National Hurricane Center Miami FL 910 AM EDT Tue Aug 2 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 August 2, 2022 with backup date scheduled for August 3, 2022 The NWS National Hurricane Center (NHC) and Weather Forecast Offices (WFOs) in Boston/Norton, Massachusetts and Jacksonville, Florida will conduct internal software and hardware testing of the National Tropical Cyclone Watch/Warning (TCV) product collaboration process August 2, 2022. Test activities are expected to be conducted each day between 1500 UTC and 1900 UTC. Wednesday, August 3, 2022 is the designated backup day. If it is necessary to test on the backup date, WFOs in Miami, Florida and Tallahassee, Florida will participate with NHC. 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 weather.gov 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: Jessica Schauer NWS Tropical Services Program Manager National Weather Service Miami, FL 305-229-4476 Tropical.Program@noaa.gov National Public Information Statements are online at: https://www.weather.gov/notification/ NNNN