<pre>946 NOUS43 KLOT 122150 PNSLOT
SERVICE CHANGE NOTICE NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE, IL 445 PM CDT TUE MAR 12 2019
To: Family of Services (FOS) subscribers, NOAA Weather Wire
Service (NWWS) subscribers, Emergency Managers Weather Information Network (EMWIN) subscribers, NOAAPort subscribers, National Weather Service (NWS) partners and other users, and NWS employees.
From: W. Scott Lincoln
Senior Service Hydrologist NWS Chicago
Subject: Change to flood impact categories on the Rock River at Latham Park, Rockford Auburn Street, Rockford Fordam Dam, and Byron, Illinois
Due to the threat of river flooding over the next few weeks in the Rock River Basin, the changes to forecast issuance stages and flood impact categories that were previously scheduled for April 1, 2019, are now effective immediately.
These locations include:
Rock River at Latham Park (NWS identifier LATI2) Rock River at Rockford Auburn Street (NWS identifier RABI2) Rock River at Rockford Fordam Dam (NWS identifier RFDI2) Rock River at Byron (NWS identifier BYRI2)
… Rock River at Latham Park…
This gauge represents the river reach from Swanson Road in Roscoe downstream to Shorewood Park in Loves Park.
Action Stage: 8.0 feet Minor Flood Stage: 9.0 feet Moderate Flood Stage: 11.0 feet Major Flood Stage: 13.5 feet
River forecasts for this location will now be issued when the water level has reached, or is expected to reach, the forecast issuance stage of 7.0 feet.
… Rock River at Rockford Auburn Street…
This gauge represents the river reach from Shorewood Park in Loves Park downstream to the confluence with the Kishwaukee River.
Action Stage: 5.5 feet Minor Flood Stage: 6.0 feet Moderate Flood Stage: 8.5 feet Major Flood Stage: 10.0 feet
River forecasts for this location will now be issued when the water level has reached, or is expected to reach, the forecast issuance stage of 5.0 feet.
… Rock River at Rockford Fordam Dam…
This gauge represents only the areas immediately upstream of the dam in downtown Rockford.
Action Stage: 3.5 feet Minor Flood Stage: 4.0 feet Moderate Flood Stage: 5.0 feet Major Flood Stage: 6.0 feet
River forecasts are not issued for the Rock River at Rockford Fordam Dam.
… Rock River at Byron…
This gauge represents the river reach from the confluence with the Kishwaukee River downstream to Castle Rock State Park near Oregon.
River forecasts for this location will now be issued when the water level has reached, or is expected to reach, the forecast issuance stage of 9.5 feet.
Forecast and warning information is available from the NOAA/NWS Chicago web page at weather.gov/chicago as well as the NOAA/NWS Advanced Hydrologic Prediction Service (AHPS) web page at water.weather.gov.
If you have any questions regarding these changes, please contact:
W. Scott Lincoln scott.lincoln@noaa.gov 815-834-0600 x493</pre>
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