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Flash Flood Guidance
 
    

Downloading Flash Flood Guidance Data

There are six files (five required and one optional) for using NWS Flash Flood Guidance shapefile data:
  • nws_ffg.sbn -- REQUIRED
  • nws_ffg.sbx -- REQUIRED
  • nws_ffg.shp -- REQUIRED
  • nws_ffg.shx -- REQUIRED
  • nws_ffg.dbf -- REQUIRED
  • nws_ffg_legend.avl -- optional
The first four (sbn, sbx, shp and shx extensions) are static; you only need to download them once. Click on the link below to download a ZIP file with these files (2.5MB compressed, 7.4MB uncompressed).

The dbf file (520K) is routinely updated several times per day.

The optional legend file (also included in the nws_ffg.zip) will help you reproduce the color scheme we are using. If using ArcView, you will need to copy it into your c:\esri\av_gis30\arcview\legend_avl\ directory and load it manually through the legend editor.

If you have any questions, please contact sr-lmrfc.webmaster@noaa.gov.

Files IncludedSizeFile Name 
nws_ffg.sbn
nws_ffg.sbx
nws_ffg.shp
nws_ffg.shx
nws_ffg_legend.avl		 34 KB
3 KB
7525 KB
23 KB
8 KB		 nws_ffg.zip (2531 KB) Download Now
nws_ffg.dbf519 KBnws_ffg.dbf (519 KB) Download Now
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