Changes to river flood warning services July 2011


SERVICE CHANGE NOTICE
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 PM CDT WED JUN 1 2011

TO: FAMILY OF SERVICES/FOS/SUBSCRIBERS...NOAA WEATHER WIRE
SERVICE/NWWS/SUBSCRIBERS...EMERGENCY MANAGERS WEATHER
INFORMATION NETWORK/EMWIN/SUBSCRIBERS...NOAAPORT
SUBSCRIBERS...OTHER NATIONAL WEATHER SERVICE CUSTOMERS
AND PARTNERS...AND NWS EMPLOYEES.

FROM: WILLIAM MORRIS
SERVICE HYDROLOGIST
NWS CHICAGO/ROMEOVILLE IL

SUBJECT:CHANGES TO RIVER FORECAST SERVICES ON THE FOX AND DES
PLAINES RIVERS IN NORTHEAST ILLINOIS.

BEGINNING JULY 5 2011...THE FOLLOWING CHANGES WILL BE MADE TO RIVER
FORECAST AND FLOOD WARNING SERVICES IN NORTHEAST ILLINOIS.

...FOX RIVER AT ALGONQUIN IL...
THE LOCATION FOR RIVER FORECASTS AT ALGONQUIN WILL MOVE FROM THE
EXISTING U.S. GEOLOGICAL SURVEY (USGS) GAGE LOCATED ON THE NORTH
SIDE OF THE HIGHWAY 62 (ALGONQUIN RD) BRIDGE TO THE USGS GAGE
LOCATED AT A FOOTBRIDGE APPROXIMATELY ONE-QUARTER MILE DOWNSTREAM.
THIS NEW LOCATION WILL BE REFERRED TO AS ALGONQUIN TAILWATER. FLOOD
STAGE FOR THE NEW LOCATION WILL BE 9.5 FEET. IT SHOULD BE NOTED THAT
THE NEW FLOOD THRESHOLDS SHOULD BE CONSIDERED PROVISIONAL.

...DES PLAINES RIVER AT LINCOLNSHIRE IL...
ACTION STAGE FOR THE DES PLAINES RIVER AT LINCOLNSHIRE WILL BE
RAISED FROM 10.5 TO 11.5 FEET. FLOOD STAGE WILL BE CHANGED FROM 11.0
TO 12.5 FEET.

RIVER FORECAST AND FLOOD WARNING INFORMATION IS AVAILABLE FROM
THE NOAA NWS ADVANCED HYDROLOGIC PREDICTION SERVICE PAGE BY CLICKING
ON THE RIVERS AND LAKES LINK ON THE NWS CHICAGO WEB SITE AT:

WWW.WEATHER.GOV/CHICAGO

RIVER FORECAST AND FLOOD INFORMATION IS ALSO BROADCAST ON NOAA
WEATHER RADIO.

THESE CHANGES ARE A RESULT OF COOPERATION WITH OTHER AGENCIES
INCLUDING THE U.S. GEOLOGICAL SURVEY...ILLINOIS DEPARTMENT OF
NATURAL RESOURCES/OFFICE OF WATER RESOURCES...AND THE VILLAGE OF
LINCOLNSHIRE.

IF YOU HAVE ANY QUESTIONS OR COMMENTS ON THESE UPCOMING
CHANGES...PLEASE CONTACT:

WILLIAM MORRIS
SERVICE HYDROLOGIST
NATIONAL WEATHER SERVICE FORECAST OFFICE
333 W UNIVERSITY DRIVE
ROMEOVILLE IL 60446
PHONE: 815-834-0600 X493


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