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NOUS41 KWBC 101414
PNSWSH
PUBLIC INFORMATION STATEMENT...SERVICE CHANGE NOTICE 01-43
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
1015 AM EDT FRI AUG 10 2001
TO: FAMILY OF SERVICES /FOS/ SUBSCRIBERS...NOAA WEATHER
WIRE SERVICE /NWWS/ SUBSCRIBERS...EMERGENCY MANAGERS
WEATHER INFORMATION NETWORK /EMWIN/ SUBSCRIBERS...
OTHER NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS AND
PARTNERS...NWS EMPLOYEES
FROM: BILL PROENZA
DIRECTOR...NWS SOUTHERN REGION
SUBJECT: NEW RIVER FLOOD WATCH NARRATIVE PRODUCT AND ASSOCIATED
WEB-BASED GRAPHICS...EFFECTIVE SEPTEMBER 5 2001
EFFECTIVE WEDNESDAY... SEPTEMBER 5 2001...SOUTHERN REGION
WEATHER FORECAST OFFICES AND RIVER FORECAST CENTERS WILL BEGIN
ISSUANCE OF A NEW RIVER FLOOD WATCH PRODUCT.
A RIVER FLOOD WATCH MEANS THAT RIVER FLOODING IS POSSIBLE...BUT
NOT IMMINENT. THIS RIVER FLOOD WATCH PRODUCT AND ITS ASSOCIATED
WEB-BASED GRAPHIC WILL CONTAIN INFORMATION ABOUT GEOGRAPHIC AREAS
THAT MIGHT BE AFFECTED...AND THE MAGNITUDE OF RIVER FLOODING THAT
MIGHT OCCUR WITHIN 48 HOURS...BASED ON FORECAST RAINFALL.
THE RIVER FLOOD WATCH WILL BE DISSEMINATED UNDER THE FOLLOWING
PRODUCT IDENTIFIER AND ASSOCIATED WMO HEADER...
PRODUCT IDENTIFIER WMO HEADER
CCCFFAXXX WGUS## KCCC
IF YOU ALREADY RECEIVE THIS PRODUCT IDENTIFIER...THERE WILL BE NO
CHANGES NEEDED TO YOUR COMMUNICATION SYSTEM. WHILE ISSUED UNDER
THE CCCFFAXXX IDENTIFIER...THE PRODUCT WILL BE HEADLINED...RIVER
FLOOD WATCH. WHEN A RIVER FLOOD WATCH PRODUCT IS ISSUED UNDER
THE FFA IDENTIFIER...COUNTY UNIVERSAL GEOGRAPHIC CODES /UGC/ WILL
BE USED TO DEFINE WHICH COUNTIES ARE IN THE WATCH AREA INSTEAD OF
ZONE UGC CODES.
THE RIVER FLOOD WATCH PRODUCT AND ITS ASSOCIATED GRAPHIC WILL BE
AVAILABLE ON THE INTERNET AT /USE LOWER CASE/:
WWW.SRH.NOAA.GOV/5-CHARACTER RFCSTATIONID [E.G., LMRFC]/RFW/
WFOSTATIONID [E.G., JAN]RFW.HTML
THE FOLLOWING IS A SAMPLE OF THE RIVER FLOOD WATCH ...
EXAMPLE:
WGUS64 KSHV DDHHMM
FFASHV
OKC089-ARC133-057-010400-
FLOOD WATCH [EXAMPLE]
NATIONAL WEATHER SERVICE SHREVEPORT LA
1025 AM CST FRI MAR 30 2001
...RIVER FLOOD WATCH IN EFFECT FOR PORTIONS OF SOUTHEAST OKLAHOMA
AND SOUTHWEST ARKANSAS...
THE NATIONAL WEATHER SERVICE IN SHREVEPORT AND THE ARKANSAS RED
BASIN RIVER FORECAST CENTER IN TULSA OKLAHOMA HAVE ISSUED A RIVER
FLOOD WATCH FOR PORTIONS OF SOUTHEAST OKLAHOMA AND SOUTHWEST
ARKANSAS EFFECTIVE UNTIL 10 PM SATURDAY.
HEAVY RAINFALL THAT IS FORECAST OVER SOUTHEAST OKLAHOMA AND
SOUTHWEST ARKANSAS DURING THE NEXT 24 HOURS WILL QUICKLY RUN OFF
ALREADY SATURATED SOILS. WIDESPREAD BASIN-AVERAGED RAINFALL
AMOUNTS IN EXCESS OF ONE INCH WITH LOCALIZED AMOUNTS OF 2 TO 3
INCHES MAY CAUSE RIVERS AND STREAMS TO RISE TO LEVELS THAT RESULT
IN FLOODING.
THIS RIVER FLOOD WATCH IS IN EFFECT DUE TO THE POTENTIAL FOR...
- MODERATE FLOODING ON THE GLOVER RIVER NEAR GLOVER
- MINOR FLOODING ALONG THE LITTLE RIVER FROM NEAR IDABEL TO
NEAR HORATIO
- MINOR FLOODING ON THE RED RIVER NEAR FULTON
A RIVER FLOOD WATCH MEANS RIVER FLOODING IS POSSIBLE...BUT NOT
IMMINENT. FORECAST RAINFALL MAY CAUSE RIVERS AND STREAMS TO RISE
TO CRITICAL STAGES. PERSONS WITH INTERESTS ALONG THE AREAS
MENTIONED ABOVE SHOULD REMAIN INFORMED OF THE LATEST WEATHER AND
RIVER INFORMATION AND BE PREPARED TO TAKE ACTION AS NECESSARY.
PLEASE REFER TO NATIONAL WEATHER SERVICE RIVER FLOOD WARNINGS AND
STATEMENTS FOR THE LATEST INFORMATION IN YOUR AREA.
THIS IS NOT A FLASH FLOOD WATCH. FLASH FLOOD WATCHES ARE ISSUED
SEPARATELY FOR SHORTER TIME PERIODS AND SMALLER STREAMS...OR
URBAN AREAS...FOR IMMEDIATE PUBLIC ATTENTION.
A GRAPHIC SHOWING THE COUNTIES...RIVER FORECAST POINT
LOCATIONS...AND RIVER REACHES IN THE WATCH AREA IS AVAILABLE AT
THE FOLLOWING WEB SITE /USE LOWER CASE/::
HTTP://WWW.SRH.NOAA.GOV/ABRFC/RFW/SHVRFW.HTML
END OF PRODUCT
END OF EXAMPLE
A RIVER FLOOD WATCH IS DIFFERENT THAN A FLASH FLOOD WATCH. A
FLASH FLOOD WATCH IS ISSUED FOR SMALL STREAMS OR URBAN AREAS THAT
MIGHT ENCOUNTER FLASH FLOODING WITHIN SIX HOURS OF THE CAUSATIVE
EVENT /E.G. HEAVY RAINFALL...DAM FALURE/. A RIVER FLOOD WATCH IS
ISSUED FOR LARGER MAINSTEM RIVERS AND TRIBUTARIES THAT MIGHT
FLOOD WITHIN 48 HOURS BASED ON FORECAST RAINFALL USED IN FLOOD
PREDICTION MODELS.
TO REPEAT...THE NWS OFFICES AND RIVER FORECAST CENTERS IN THE
SOUTHERN REGION WILL BEGIN ISSUANCE OF A NEW RIVER FLOOD WATCH
PRODUCT BEGINNING WEDNESDAY... SEPTEMBER 5 2001.
QUESTIONS REGARDING THIS NEW RIVER FLOOD WATCH PRODUCT AND ITS
ASSOCIATED WEB-BASED GRAPHIC SHOULD BE DIRECTED TO:
JOHN FELDT
HYDROLOGIST-IN-CHARGE
SOUTHEAST RIVER FORECAST CENTER
4 FALCON DRIVE
PEACHTREE CITY GA 30269
TELEPHONE: 770-486-0028
BILLY OLSEN
HYDROLOGIST-IN-CHARGE
ARKANSAS-RED BASIN RIVER FORECAST CENTER
10159 EAST 11TH ST SUITE 300
TULSA OK 74128
TELEPHONE: 918-832-4109
JERRY NUNN
HYDROLOGIST-IN-CHARGE
WEST GULF RIVER FORECAST CENTER
3401 NORTHERN CROSS BLVD
FORT WORTH TX 76137
TELEPHONE: 817-831-3289
DAVE REED
HYDROLOGIST-IN-CHARGE
LOWER MISSISSIPPI RIVER FORECAST CENTER
62300 AIRPORT ROAD
SLIDELL LA 70460
TELEPHONE: 504-643-0541
BEN WEIGER
CHIEF...HYDROLOGIC SERVICES BRANCH
NWS SOUTHERN REGION HEADQUARTERS
819 TAYLOR ST
FORT WORTH TX 76102
TELEPHONE: 817-978-2674 X118
THIS AND ALL OTHER PENDING NWS SERVICE CHANGE NOTIFICATIONS ARE
AVAILABLE AT THE FOLLOWING URL ADDRESS /USE LOWER CASE/:
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM
END
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