New Flood Inundation Maps for the Blanchard River at Ottawa Ohio

SERVICE CHANGE NOTICE
NATIONAL WEATHER SERVICE NORTHERN INDIANA
225 PM EDT WED APR 18 2012

TO: SUBSCRIBERS
-FAMILY OF SERVICES
-NOAA WEATHER WIRE SERVICE OTHER NWS
PARTNERS...USERS AND EMPLOYEES

FROM: MIKE REHBEIN
SERVICE HYDROLOGIST

SUBJECT: NEW FLOOD INUNDATION MAPS FOR THE BLANCHARD RIVER AT
OTTAWA

EFFECTIVE MAY 1 2012...THE NATIONAL WEATHER SERVICE /NWS/ WILL
IMPLEMENT NEW FLOOD INUNDATION MAPS TO THE ADVANCED HYDROLOGIC
PREDICTION SERVICE /AHPS/ WEB PORTAL FOR A PORTION OF THE BLANCHARD
RIVER AT OTTAWA OHIO. THE MAPPING EXTENDS FROM APPROXIMATELY 2.2
MILES NORTHWEST TO 2 MILES SOUTHEAST OF THE SOUTH OAK STREET BRIDGE.
THE MAPS SHOW THE POTENTIAL INUNDATION WITHIN THE VILLAGE OF OTTAWA.

AHPS INUNDATION MAPS PROVIDE INFORMATION ON THE SPATIAL EXTENT AND
DEPTH OF FLOOD WATERS IN THE VICINITY OF NATIONAL WEATHER SERVICE
RIVER FORECAST POINTS. USERS WILL BE ABLE TO DISPLAY FLOOD
INUNDATION MAPS FOR VARIOUS RIVER LEVELS RANGING FROM MINOR FLOODING
THROUGH MAJOR FLOODING. FLOOD INUNDATION MAPS...COMBINED WITH RIVER
OBSERVATIONS AND NWS FORECASTS...ENHANCE THE COMMUNICATION OF FLOOD
RISK AND PROVIDE USERS ADDITIONAL INFORMATION TO BETTER MITIGATE THE
IMMPACTS OF FLOODING. THESE INUNDATION MAPS WERE DEVELOPED THROUGH
PARTNERSHIP WITH THE VILLAGE OF OTTAWA...THE U.S. GEOLOGICAL SURVEY
AND THE NATIONAL WEATHER SERVICE.

THE BLANCHARD RIVER AT OTTAWA FLOOD INUNDATION MAPS AND ASSOCIATED
GEOSPATIAL DATA (SHAPEFILES) CAN BE ACCESSED THROUGH THE AHPS WEB
PORTAL AT THE FOLLOWING WEB ADDRESS:

HTTP://WATER.WEATHER.GOV/AHPS

A COMPLETE LIST OF FLOOD INUNDATION MAP LOCATIONS IS ONLINE AT:

HTTP://WATER.WEATHER.GOV/AHPS/INUNDATION.PHP

A USERS GUIDE FOR THE FLOOD INUNDATION MAP WEB INTERFACE IS
AVAILABLE AT:

HTTP://WATER.WEATHER.GOV/AHPS2/INUNDATION/INUNDATIONN_MAPPING_USER_GU
IDE.PDF

PLEASE NOTE THAT WEB ADDRESSES SHOULD BE TYPED IN LOWER CASE
LETTERS.

IF YOU HAVE ANY QUESTIONS OR COMMENTS...PLEASE CONTACT

MIKE REHBEIN
NATIONAL WEATHER SERVICE NORTHERN INDIANA
SERVICE HYDROLOGIST
7506 E 850 N
SYRACUSE IN 4567

PHONE: (574)834-1104 EXT. 493
EMAIL: MICHAEL.REHBEIN@NOAA.GOV

NWS SERVICE CHANGE NOTICES ARE ONLINE AT:

HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM


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