# Presentation: 220773

## Warning Products Update: Hurricane Extreme Wind WarningProposed Headline Changes in NWS Warning Products

*Mark Tew  *
*Marine and Coastal Weather Services Branch*
*Office of Climate, Water and Weather Services*

*Partners Meeting **January 18, 2007*

***Warning Products Update***

## Extreme Wind Warning

***Extreme Wind Warning***

## Purpose

- To provide short-fused, county sized alerts prior to the onset of extreme winds associated with the inner rain-bands of major hurricanes

***Extreme Wind Warning***

## Criteria

- Imminent onset of, or occurring tropical cyclone related sustained surface winds, greater than or equal to 100 knots (115 mph)
- Extreme tropical cyclone winds expected to occur within a WFOs CWA within an hour

***Extreme Wind Warning***

## Extreme Wind Warnings Will:

- Be issued for the smallest geographic area possible, encompassing the extreme wind conditions

- Use valid times of two hours or less
- Issued only one time for a given location
- Updates will be provided within Severe Weather Statements (SVS)

***Extreme Wind Warning***

## EWW Example

**EWW****TBW**
**FLC015-071-132100-**
**/O.NEW.KTBW.****EW.W****.0013.040813T1938Z-040813T2100Z/**
**BULLETIN - EAS ACTIVATION REQUESTED**
**EXTREME WIND WARNING**
**NATIONAL WEATHER SERVICE TAMPA BAY - RUSKIN FL**
**338 PM EDT FRI AUG 13 2004**
**THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED AN**
*** ****EXTREME WIND WARNING FOR THE ONSET OF SUSTAINED WINDS OF **_**115 MPH**_** OR**** **
**   ****GREATER**** FOR...**
**   ****CHARLOTTE COUNTY IN SOUTHWEST FLORIDA**
**  **
*** UNTIL 500 PM EDT**
*** AT 335 PM EDT...SURFACE OBSERVATIONS AND NATIONAL WEATHER SERVICE DOPPLER **
**   ****RADAR INDICATED EXTREME WINDS...ASSOCIATED WITH THE EYEWALL OF HURRICANE                        **
**   ****CHARLEY...WERE MOVING ONSHORE NEAR NORTH CAPTIVA ISLAND.  ****SUSTAINED WINDS IN   **
**   ****EXCESS OF 140 MPH****...CAPABLE OF PRODUCING WIDESPREAD DESTRUCTION...CAN BE EXPECTED **
**   ****AS THE EYEWALL PASSES OVERHEAD.  MOVEMENT WAS NORTH NORTHEAST AT 20 MPH.**
*** THESE EXTREME WINDS WILL AFFECT...**
**   ****CHARLOTTE COUNTY IN SOUTHWEST FLORIDA**
**  **
**THIS IS A DANGEROUS STORM!  MOVE INTO AN INTERIOR ROOM AWAY FROM WINDOWS AND **
**OUTER WALLS.  COVER YOUR HEAD AND BODY WITH PILLOWS OR BLANKETS. **
**LAT...LON 2672 8226 2644 8213 2702 8174 2702 8207**
**$$**

***Extreme Wind Warning***

## Implementation Timeline

- Public Notification (PNS) – Feb 2007
- AWIPS OB7.2 – Spring 2007
- National Implementation – June 2007
- New EAS EWW Code – Longer Term
- Working with FCC to gain approval

***Extreme Wind Warning***

**Notes:**
This change would not occur for 2007
Feedback as to the appropriateness of this change greatly appreciated.

## Partner Feedback

- Consideration being given to change the issuance criteria from sustained winds of 115 mph or greater to _*frequent gusts*_ of 115 mph or greater
- Comments or questions to:  scott.kiser@noaa.gov

***Extreme Wind Warning***

**Notes:**
This change would not occur for 2007
Feedback as to the appropriateness of this change greatly appreciated.

## Proposed Headline Changes in NWS Warning Products

*Mark Tew  *
*Marine and Coastal Weather Services Branch*
*Office of Climate, Water and Weather Services*

*Partners Meeting **January 18, 2007*

***New NWS Headline Requirements***

## Pre-VTEC: Purpose of Long Duration Headlines

- Lists current watch/warning/advisory product
- Product name not identified in AWIPS ID (WSW = 19 products)
- Short duration products have own unique AWIPS ID
- SVR, TOR, FFW, SMW
- Provides valid time information
- Product expiration time usually differs from event expiration time
- Short duration products – these times match

***New NWS Headline Requirements***

## Headline Timeline

*Proposed Standardized Format for NWS Segment Headlines*
- Provided by First Alert (Marvin McInnis - Jan, 2004), endorsed by Meteorologix and WSI
- Implemented Headline Standardization Winter 2004-05
- Served as a backup until VTEC implementation
- Implemented VTEC – Nov 2005

***New NWS Headline Requirements***

## Confusing Headlines:Downgrades & Replacements

- High Wind Warning downgraded to a Wind Advisory:
**...HIGH WIND WARNING CANCELLED FOR THE NORTH OREGEON CASCADES... **
**...WIND ADVISORY IN EFFECT FROM 11 PM LATE TONIGHT UNTIL 4 PM WEDNESDAY AFTERNOON FOR THE NORTH OREGON CASCADES...**
- Blizzard Warning replacing a Winter Storm Warning:
**...WINTER STORM WARNING CANCELLED... **
**...BLIZZARD WARNING IN EFFECT UNTIL UNTIL 4 PM MST WEDNESDAY AFTERNOON...**

***New NWS Headline Requirements***

## Post VTEC: Headline Flexibility

- VTEC Coding and Headlines meet Separate Needs
- VTEC Coding used for computer reliant users
- Headlines for users making life and property protection decisions
- Provide Option to Unlock Headlines
- Provide forecaster greater latitude to fix misleading headlines
- Simplify headlines
- Eliminate action phrases and time zones
- Replace specific time phrases with general time phrases

***New NWS Headline Requirements***

## Simplified Headlines

- Downgrades  (Two headlines combined into one):
**   ...****HIGH WIND WARNING REPLACED BY WIND ADVISORY...THROUGH WEDNESDAY AFTERNOON FOR THE NORTH OREGON CASCADES...**
- Replacements:
-    **...****WINTER STORM WARNING REPLACED BY BLIZZARD WARNING...THROUGH WEDNESDAY AFTERNOON...**

## Solution 

- Short term – Unlock Headlines to allow forecasters to correct confusing headlines
- Target Winter 2007-08
- Long Term – Implement Warning Software improvements

***New NWS Headline Requirements***

## The End

- Questions or Comments?

***New NWS Headline Requirements***