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Hydrology Laboratory

Special Announcement

The Office of Hydrologic Development maintains historical hydrologic data up to September 30, 2005.

Gridded Flash Flood Guidance Data

Gridded Flash Flood Guidance data is available from the National Precipitation Verification Unit. To request the data complete and submit the form in the following link:

Please view the National Weather Service Disclaimer regarding the information on this US Government Server.

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National Weather Service
Hydrologic Systems Engineering Branch
Page last modified: March 19, 2008

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