Looking for FEMA flood maps, LOMRs, and LOMAs? Check out FEMA’s National Flood Hazard Layer web map. You can also view things like river mile markers, coastal gages, high water marks, base flood elevations, water lines, alluvial fans, subbasins, levees, and more!
SoCalGIS.org 
Thank you, Michael, for sharing that info! That is a great viewer and I’ve already linked it from our city intranet and webpages. ☺
Best regards,
DIANA McCARTHY
GIS Specialist | Community Development Department
City of Fullerton | 303 W. Commonwealth Ave. | Fullerton CA 92832
714.738.6561 voice | 714.738.3110 fax
DianaM@ci.fullerton.ca.us | http://www.ci.fullerton.ca.us
Great! You can even have the map focus on an area when it opens by adding an extent parameter to the URL. For example, I use this to open the map up on Burbank: http://fema.maps.arcgis.com/home/webmap/viewer.html?webmap=cbe088e7c8704464aa0fc34eb99e7f30&extent=-118.376886,34.123686,-118.248858,34.251226 -mike