NWS VTEC Event ID Usage

This page provides a listing of VTEC events for a given forecast office or state and year. There are a number of caveats to this listing due to issues encountered processing NWS VTEC enabled products. Some events may appear listed twice due to quirks with how this information is stored within the database. Hopefully, you can copy/paste the table into your favorite spreadsheet program for further usage!

This listing provides two links to find more information. The "Event ID" column provides a direct link into the IEM VTEC Browser and the "HVTEC NWSLI" column provides a direct link into the HML Obs + Forecast Autoplot application.

There is a JSON(P) webservice that backends this table presentation, you can directly access it here:
https://mesonet.agron.iastate.edu/json/vtec_events.py?wfo=DMX&year=2025

By WFO By State Year
   

WFOEvent IDPHSIGEvent IssueExpireHVTEC NWSLI
DMX1CWYCold Weather Advisory2025-01-19T09:00:00Z2025-01-19T18:00:00Z
DMX2CWYCold Weather Advisory2025-01-20T09:00:00Z2025-01-20T17:00:00Z
DMX3CWYCold Weather Advisory2025-01-21T00:00:00Z2025-01-21T18:00:00Z
DMX1ECWExtreme Cold Warning2025-01-21T00:00:00Z2025-01-21T18:00:00Z
DMX1SQWSnow Squall Warning2025-01-02T12:27:00Z2025-01-02T13:30:00Z
DMX2SQWSnow Squall Warning2025-01-02T13:24:00Z2025-01-02T14:30:00Z
DMX3SQWSnow Squall Warning2025-01-02T14:30:00Z2025-01-02T15:30:00Z
DMX1WSAWinter Storm Watch2025-01-05T03:00:00Z2025-01-04T08:56:00Z
DMX1WSWWinter Storm Warning2025-01-05T03:00:00Z2025-01-05T19:19:00Z
DMX1WWYWinter Weather Advisory2025-01-02T09:00:00Z2025-01-02T21:00:00Z
DMX2WWYWinter Weather Advisory2025-01-05T03:00:00Z2025-01-05T19:19:00Z
DMX3WWYWinter Weather Advisory2025-01-05T19:19:00Z2025-01-06T02:22:00Z