VLab Forum Members,
The September 2024 VLab Forum will occur today, the 25th, at 3:00 -
4:00 PM EDT and features a presentation titled "HRRR Analysis
and Prediction of Regional Conditions Associated with Flash Floods
Across Southern Utah". The talk is being given by John Horel
who is a professor in the Department of Atmospheric Sciences at the
University of Utah in Salt Lake City, UT. We hope you can attend.
To participate in the forum, please register
for the webinar.
Abstract:
The extension of the North American monsoon into southern Utah
leads to enhanced flash flooding risks to residents and millions of
visitors to national parks and monuments during summer. Flash flood
reports and Multi-Radar Multi-Sensor (MRMS) lightning analyses
across southern Utah are related to atmospheric moisture content,
moisture flux, and instability analyses and forecasts from the
High-Resolution Rapid Refresh (HRRR) model during the 2021–24
monsoon seasons. Machine learning techniques are applied to
time-lagged ensembles of HRRR forecasts (initialization times from
0300 to 0600 UTC) that are 13–18 h prior to the afternoon period
when convection is initiating (1800–2100 UTC). Such HRRR predictions
of precipitable water and convective available potential energy may
be useful for forecasters at the Salt Lake City and Grand Junction
National Weather Service Forecast Offices to assist in issuing flash
flood potential statements for visitors to national parks and other
recreational areas in the region.
Agenda:
You can find the agenda for the Forum at the following link:
Slides:
You can find the slides for the Forum at the following link:
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