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Joint 120th Annual Cordilleran/74th Annual Rocky Mountain Section Meeting - 2024

Session No. 5
Wednesday, 15 May 2024: 8:00 AM-12:00 PM
Cedar Ballroom (Davenport Grand Hotel)

T25. Exceptional Floods in the Cordillera

 

Jim O'Connor and Richard Waitt, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
5-1
8:05 AM
MODERN EFFORTS TO MITIGATE LAHAR HAZARDS FROM CASCADES VOLCANOES
MAJOR, Jon, MORAN, Seth, THELEN, Weston, IEZZI, Alexandra, WEISS-RACINE, Holly and WESTBY, Elizabeth, U.S. Geological Survey, Cascades Volcano Observatory, 1300 SE Cardinal Ct Bldg 10, Vancouver, WA 98683-0000
5-2
8:25 AM
FLOW CATASTROPHES AT SPIRIT LAKE NEW MOUNT ST. HELENS 18 MAY 1980—PYROCLASTIC SURGE, LANDSLIDE, GIANT WAVE
WAITT, Richard, U.S. Geological Survey, Cascades Volcano Observatory, 1300 SE Cardinal Ct., Ste 100, Vancouver, WA 98683-9683
5-3
8:45 AM
LARGE TSUNAMI IN THE SALISH SEA: GEOLOGICAL EVIDENCE FROM LILY POINT, POINT ROBERTS, WASHINGTON STATE AND POTENTIAL GENERATION MECHANISMS
BRUGMAN, Melinda, Revelstoke, BC V0E 2S0, Canada
5-4
9:05 AM
EXPLORING VARIABILITY IN PEAK DISCHARGE AND EROSION CAUSED BY THE JUNE 2022 ATMOSPHERIC RIVER FLOOD IN NORTHERN YELLOWSTONE NATIONAL PARK
PERSICO, Lyman, Geology Department, Whitman College, 345 Boyer Ave, WALLA WALLA, WA 99362 and MEYER, Grant, Earth & Planetary Sciences, University of New Mexico, Albuquerque, NM 87131
5-5
9:25 AM
FLATHEAD LOBE RECESSION IN THE FLATHEAD VALLEY: IMPLICATIONS FOR ICE-MARGINAL LAKE DRAINING
SMITH, Larry, Department of Geological Engineering, Montana Technological University, 1300 W. Park St., Butte, MT 59701, MONTEJO, Carlos, Department of Geology, University of Idaho, 875 Perimeter Drive, Moscow, ID 59701 and BOBST, Andrew L., Montana Bureau of Mines and Geology, Montana Tech, 1300 W. Park Street, Butte, MT 59701
5-6
9:45 AM
MEGA-FLOOD EROSION OF THE CHANNELED SCABLAND
BAKER, Victor, Univ of Arizona Dept Hydrology & Atmospheric Sciences, 2993 E Placita Santa Lucia, Tucson, AZ 85716-0816
5-7
10:05 AM
ONLY THE FACTS: PLEISTOCENE GLACIAL OUTBURST MEGAFLOOD OR FLASH FLOOD DEPOSITS, A DEDUCTIVE APPROACH
MCCOLLUM, Michael, Ice Age Floods Institute, 908 Gary St., Cheney, WA 99004
 
10:25 AM
Break
5-8
10:40 AM
DID HEADWARD EROSION COMPLETE THE GRAND COULEE EARLY IN LATE WISCONSIN TIME OR LONG BEFORE THEN?
O'CONNOR, Jim, United States Geological Survey, Geology, Minerals, Energy, and Geophysics, 1819 SW 5th Ave, No. 336, Portland, OR 97201, LEHNIGK, Karin E., School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332 and LARSEN, Isaac, Department of Geosciences, University of Massachusetts Amherst, Amherst, MA 01003
5-9
11:00 AM
OUTBURST FLOODS FROM THE CORDILLERAN ICE SHEET AFFECTING AREAS NORTH OF THE CHANNELED SCABLAND
LESEMANN, Jerome-Etienne, Earth Science Department, Vancouver Island University, Nanaimo, BC V9R 5S5, Canada, COOLEY, Skye, Flathead Indian Irrigation Project, Mission Valley, MT 59860 and GOMBINER, Joel, Earth and Space Sciences, University of Washington, Seattle, WA 98103-4529
5-10
11:20 AM
CASE FOR >1 MILLION-YEAR-OLD, ICE-AGE MEGAFLOODS IN EASTERN WASHINGTON
BJORNSTAD, Bruce, Ice Age Floodscapes, 1918 Harris Ave, Richland, WA 99354
Handouts
  • GSA.24.Powerpoint.pptx (29.9 MB)
    • 5-11
    11:40 AM
    ANCIENT CATACLYSMIC FLOODS OF THE ICE AGE FLOODS OF THE PACIFIC NORTHWEST
    BURNS, Scott, Portland State UnivDept Geology, PO Box 751, Portland, OR 97207-0751 and MEDLEY, Erica, U.S. Army Corps of Engineers, South Pacific Division, Dam Safety Production Center, Sacramento, CA 95814
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