Session 6 Hydrometeorological ExtremesPart II

Tuesday, 9 January 2018: 1:30 PM-3:45 PM
Room 18B (ACC) (Austin, Texas)
Host: 32nd Conference on Hydrology
Eleonora Demaria, USDA–ARS, Southwest Watershed Research Center, Tucson, AZ; John N. McHenry, Baron Advanced Meteorological Systems, LLC, Chief Scientist, Raleigh, NC; Daniel Rodriguez, Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia–Univ. Federal do Rio de Janeiro, Rio de Janeiro and Konstantinos Andreadis, JPL, Pasadena, CA

High-impact hydrometeorological events produce the most destructive and costly outcomes of any weather-driven phenomena worldwide. Furthermore, despite significant progress over the last several decades, forecasting and warning for these events still lacks the precision that could minimize loss of property and life, especially in developing nations. However, new observational platforms (in situ, remote) and data-collection methods are improving our ability to assess ongoing events as well as forecast and distinguish those that could be destructive from those that probably will not be. Excessive precipitation or runoff associated with tropical cyclones/convection, land-based convection, atmospheric rivers, ENSO, wintertime snowmelt, rain-on-snow, etc. results in both flash-flooding and large-river system floods whose characteristics often depend on local soils, vegetation/agriculture, and topography. Conversely, severe droughts create deleterious impacts on crop/food production and the water supply. In this session, papers are invited that contribute to our ability to improve real-time/operational forecasts and warnings for these kinds of extremes, especially observational and modeling approaches that may vary depending upon differing societal contexts. In addition, papers that address promising and innovative methods of assessing and modeling the statistics of observed hydrometeorological extremes as applied to real-time/operational forecasting/warning systems are encouraged. Papers that document forecast system performance vis-a-vis the effect of including new or additional observations are also encouraged, as well as new or innovative approaches to communicating vital "extremes" information to stakeholders.

1:45 PM
2:00 PM
Understanding Processes and Improving Predictions of Hydrometeorological Extremes in Subtropical South America: Proyecto RELAMPAGO-CACTI
Stephen W. Nesbitt, Univ. of Illinois, Urbana, IL; and P. Salio, R. J. Trapp, R. D. Roberts, A. C. Varble, F. Dominguez, L. A. T. Machado, and C. Saulo
2:15 PM
The Meteorology of Extreme Precipitation and Implications for Future Planning (Invited Presentation)
Kenneth E. Kunkel, Cooperative Institute for Climate and Satellites, Asheville, NC; and S. M. Champion
2:45 PM
Examination of the Current and Next Version of the HRRR Model for Some Recent Heavy Precipitation Events
Ed Szoke, NOAA/ESRL/GSD and CIRA, Boulder, CO; and S. Benjamin, C. Alexander, J. Brown, T. Alcott, and E. P. James
3:00 PM
Dynamics of Tropical–Extratropical Interactions and Extreme Precipitation Events in Saudi Arabia in Autumn, Winter, and Spring
A. J. De Vries, Max Planck Institute for Chemistry, Mainz, Germany; and S. B. Feldstein, M. Riemer, E. Tyrlis, M. Baumgart, M. Fnais, M. Sprenger, and J. Lelieveld
3:15 PM
Statistical Modeling of Extreme Precipitation with TRMM Data
Levon Demirdjian, Univ. of California, Los Angeles, CA; and Y. Zhou and G. J. Huffman
3:30 PM
River Ice, Forecasting, and the Winter of 2016/17
Laura Diamond, NOAA/NWS, Chanhassen, MN; and M. Stoflet and S. Pettis
- Indicates paper has been withdrawn from meeting
- Indicates an Award Winner