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Operation of a real-time warning system for debris flows in the San Francisco bay area, California

By:
, , and
Edited by:
Shen Hsieh WenSu S.T.Wen Feng

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Abstract

The United States Geological Survey (USGS) and the National Weather Service (NWS) have developed an operational warning system for debris flows during severe rainstorms in the San Francisco Bay region. The NWS makes quantitative forecasts of precipitation from storm systems approaching the Bay area and coordinates a regional network of radio-telemetered rain gages. The USGS has formulated thresholds for the intensity and duration of rainfall required to initiate debris flows. The first successful public warnings were issued during a severe storm sequence in February 1986. Continued operation of the warning system since 1986 has provided valuable working experience in rainfall forecasting and monitoring, refined rainfall thresholds, and streamlined procedures for issuing public warnings. Advisory statements issued since 1986 are summarized.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Operation of a real-time warning system for debris flows in the San Francisco bay area, California
ISBN:
0872629201
Issue:
pt 2
Year Published:
1993
Language:
English
Publisher:
Publ by ASCE
Publisher location:
New York, NY, United States
Larger Work Title:
Proceedings - National Conference on Hydraulic Engineering
First page:
1908
Last page:
1913
Conference Title:
Proceedings of the National Conference on Hydraulic Engineering
Conference Location:
San Francisco, CA, USA
Conference Date:
25 July 1993 through 30 July 1993