NOUS41 KWBC 211239



Service Change Notice 13-73

National Weather Service Headquarters Washington DC

740 AM EST Thu Nov 21 2013


TO:       Subscribers

          -Family of Services

          -NOAA Weather Wire Service

          -Emergency Managers Weather Information Network


          Other NWS partners and employees


FROM:     Mary Mullusky

          Acting Chief, Hydrologic Services Division


SUBJECT:  Transfer of Hydrologic Services for the Western

          Atchafalaya River Basin to Weather Forecast Office

          Lake Charles, LA, Effective February 5, 2014


Effective Wednesday, February 5, 2014, at 12:00 PM Central

Standard Time (CST), 1800 Coordinated Universal Time (UTC),

hydrologic service responsibility for river forecast locations

in St. Mary, St. Martin, Iberia, St. Landry, and Avoyelles

Parishes will be transferred to the Weather Forecast Office in

Lake Charles, LA (WFO LCH) from the WFO in Slidell, LA (WFO

LIX). This transfer will include the river forecast point

locations given in Table 1 below. These changes will align

Hydrologic Service Areas and Parish Warning Areas to enable more

efficient service.  


Because of this transfer, partners and other users must take

appropriate action to receive the products listed in Table 2 for

the Atchafalaya River forecast points in St. Mary, St. Martin,

Iberia, St. Landry, and Avoyelles Parishes using the WFO LCH



Updated hydrologic service area shapefiles are online at:


Table 1. River forecast points transferring to WFO Lake Charles.


FORECAST POINT                        PARISH         IDENTIFIER              


Atchafalaya River at Simmesport       Avoyelles      SMML1

Atchafalaya River at Melville         St. Landry     MLVL1

Atchafalaya River at Krotz Springs    St. Landry     KRZL1

Atchafalaya River above Butte La Rose St. Martin     BLRL1

Atchafalaya River at Grand Lake       St. Mary       GNDL1

Atchafalaya River at Morgan City      St. Mary       MCGL1


Table 2. Products affected by this change for the Atchafalaya

River in Louisiana.  Headers referred to as new are existing

headers that will be used after the transfer.


PRODUCT                 WMO HEADING            AWIPS ID


Flood Watch       /NEW/ WGUS64 KLCH         /NEW/ FFALCH

                * /OLD/ WGUS64 KLIX     * /OLD/ FFALIX


Flood Warning     /NEW/ WGUS44 KLCH       /NEW/ FLWLCH

                * /OLD/ WGUS44 KLIX     * /OLD/ FLWLIX


Flood Statement   /NEW/ WGUS84 KLCH       /NEW/ FLSLCH

                * /OLD/ WGUS84 KLIX     * /OLD/ FLSLIX


Daily River and   /NEW/ FGUS54 KLCH       /NEW/ RVDLCH

Lake Summary    * /OLD/ FGUS54 KLIX     * /OLD/ RVDLIX


Hydrologic        /NEW/ FGUS74 KLCH       /NEW/ ESFLCH

Outlook         * /OLD/ FGUS74 KLIX     * /OLD/ ESFLIX


* These old products will continue to exist, but will cover

locations and areas other than those in the western Atchafalaya

River basin locations of Louisiana. 


If you have any questions, please contact:


  Kenneth Graham                         


  NWS New Orleans/Baton Rouge, LA

  Slidell, LA  70460-6243

  (985) 649-0429 or (504) 522-7330


  Andrew Patrick


  NWS Lake Charles, LA

  Lake Charles, LA  70607-0669

  (337) 477-5285


National Service Change Notices are online at: