Changes to River Forecast Services June 1, 2012

SERVICE CHANGE NOTICE
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 AM CDT THU MAY 3 2012

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 IN NORTHERN ILLINOIS
                     EFFECTIVE JUNE 1 2012.

BEGINNING JUNE 1 2012...THE FOLLOWING CHANGES WILL BE MADE TO RIVER
FORECAST AND FLOOD WARNING SERVICES IN NORTHERN ILLINOIS.

NORTH BRANCH CHICAGO RIVER AT ALBANY AVENUE IN CHICAGO...

THE NATIONAL WEATHER SERVICE CHICAGO FORECAST OFFICE WILL BEGIN
PROVIDING RIVER FORECAST AND FLOOD WARNING SERVICES FOR THE NORTH
BRANCH CHICAGO RIVER AT THE U.S. GEOLOGICAL SURVEY RIVER GAGE
LOCATED AT ALBANY AVENUE IN CHICAGO. RIVER FORECASTS AND STATEMENTS
WILL BE ISSUED WHEN FLOODING IS OCCURRING OR FORECAST. FLOOD STAGE
WILL BE DESIGNATED AS 7 FEET. FLOOD STAGE AND FLOOD IMPACT LEVELS
SHOULD BE CONSIDERED PROVISIONAL AND MAY BE MODIFIED AT A LATER DATE
BASED ON UPDATED FIELD OBSERVATIONS OR OTHER SUPPORTING DATA.

PECATONICA RIVER NEAR SHIRLAND IL...

THE MODERATE FLOOD THRESHOLD WILL BE CHANGED FROM 15 TO 14 FEET AND
THE MAJOR FLOOD THRESHOLD WILL BE CHANGED 17 TO 15.5 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.

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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