# Presentation: 672347

## VTEC Key Milestones

| Date | Action | Status |
| --- | --- | --- |
| February 2005 | Short-duration VTEC (Five products),  initial and final WOU become operational | Complete |
| February 2005 | Discontinue SLS and SEL products | Complete |
| March 2005 | WBC, Long Duration Hazard and Routine Marine Products DT&E | Complete |
| March 2005 | Begin experimental VTEC dissemination at 15 Offices | Complete |
| April 2005 | WBC, Long Fuse Hazard and Routine Marine Products Training Administered | Complete |
| May – June 2005 | WBC, Long Fuse Hazard and Routine Marine Products VTEC OT&E | In Progress |
| June 30 2005 | Issue PNS for Implementation of VTEC for WBC, Long Duration Hazard and Routine Marine Products | Low Risk |
| August - October 2005 | Begin experimental WBC, Long Duration Hazard and Routine Marine Products VTEC nationwide | Low Risk |
| August 2005 | Hydro VTEC DT&E | Low Risk |
| August 2005 | Hydro VTEC Training Administered | Low Risk |
| September 2005 | Begin experimental hydro VTEC and stand alone MWS dissemination at 4 Offices | Low Risk |
| November 2005 | WBC, Long Fuse Hazard and Routine Marine VTEC becomes operational | Low Risk |
| December 2005 | Hydro VTEC OT&E at 16 Offices | Moderate Risk |
| April 2006 | Hydro and stand-alone MWS VTEC becomes operational | Moderate Risk |

**Acronyms Defined:**
**VTEC – Valid Time Event Code                                            PNS – Public Notification Statement****WBC – Watch-by-County                                                      DT&E – Developmental Test and Evaluation****OT&E – Operational Test and Evaluation                            SLS – State Convective Watch Definition Product****SEL – National Convective Watch Definition                      WOU – Watch Outline Update****MWS – Marine Weather Statement**

## GHG/VTEC OT&E Success Rates(%)

|  | Week 1
5/9 – 
5/15 | Week 2
5/16 – 5/22 | Week 3
5/23 –
5/29 | Week 4
5/30 –
6/5 | Week 5
6/6 –
6/12 | Week 6
6/13 –
6/19 | Week 7
6/20 –
6/22 | Number Issued | Overall Success
Rate |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| WCN | 94.1 | 100 | 98.0 | 90.6 | 97.3 | 100 | 81.8 | 491 | 95.5 |
| CFW | 100 | 100 | 97.1 | 97.0 | 100 | 100 | 100 | 175 | 98.2 |
| CWF | 94.1 | 97.2 | 98.3 | 98.9 | 98.1 | 97.3 | 99.2 | 2098 | 97.1 |
| WSW | 93.3 | 100 | 100 | 100 | 100 | 100 | 100 | 429 | 99.3 |
| NPW | 85.7 | 98.9 | 100 | 98.7 | 99.4 | 91.9 | 100 | 713 | 98.0 |
| FFA | 88.9 | 97.6 | 100 | 89.4 | 96.8 | 97.3 | 64.7 | 333 | 93.9 |
| NSH | 89.3 | 95.9 | 96.4 | 100 | 100 | 100 | 95.8 | 378 | 96.8 |
| RFW | 100 | 100 | 100 | 100 | 100 |  - | 100 | 43 | 100 |
| MWS | 40.0 | 100 | 100 | 100 | 100 | 100 |  -  | 58 | 94.8 |
| ALL | 92.2 | 98.2 | 98.7 | 97.5 | 98.4 | 97.5 | 93.8 | 4718 | 97.1 |

## County vs. Polygon

- Latitude/Longitude points at the bottom of all TORs, SVRs, FFWs, and SMWs.

## Polygon Information in Warnings Today

- Polygons graphically highlight the area of greatest threat
- Latitude/longitude vertex points included in all short duration warnings
- TOR, SVR, FFW, SMW

## The Challenge

- Dissemination
- Many TV Stations not prepared to display polygons
- Niche market for private sector (e.g., WeatherData)
- NOAA All-Hazards Radio
- Technical limitation: location is based only on county
- New generation of NWR needs to allow users to input either lat/long or nearest city to take advantage of polygon technology