Valid Time Event Code

Valid Time Event Code (VTEC) enables weather providers and vendors to automate and tailor the product stream delivered to their clients. This capability, in turn, allows customers to select the specific message types they want to receive. VTEC will help allow automated dissemination of critical weather information through through technologies such as paging systems and television message crawl systems.

VTEC Overview

• VTEC Explanation: a one-page color chart
• VTEC Primer: Your Guide to Interpreting VTEC: ppt

VTEC-related NWS Instructions (NWSIs)

• NWS Instruction 10-1703 - Valid Time Event Code (VTEC) Examples of products with VTEC are provided in Appendix C of the latest directive
• Other related NWS Instructions

Hydrologic VTEC Information

(For NWS Offices only) VTEC Issues: Operations and Product Formatters

• Tropical Job Sheets
  • Using the Graphical Hazards Generator (GHG) for Tropical Operations
• WBC
  • WBC Job Sheets for GHG
• GHG
  • Expiring a GHG product
  • Extending Part of a GFE Hazard
  • Correcting a GFE-issued Product
• Headlines
  • Standardized Headline Time Phrases for Long Duration W/W/A Products
• WarnGen - Instructions and Job Sheets
  • Creating an SVR and SMW from the Same Track
  • Extending Hydro Products
  • Handling a TOR and SVR in same county
  • Correctly retransmitting a warning
  • Canceling warnings in WarnGen
  • Doing text corrections
  • Choosing a warning to followup or correct
  • Doing partial cancellations
  • Creating an expiration statement
  • Creating a properly formatted followup statement