Stealth Vorticity 2017-01-27 14:02:10

Well-rounded introduction to "Quantitative Precipitation Forecasting."

TimRossman 2016-11-06 11:09:37

Enjoyed reading it as a power point!!

n3mra 2014-02-27 19:41:44

There was a fair amount of demonstration not shown in these slides. Lots of talk of "if you have a boundary -here- and ...." Overall, the information was good, however.

maasaw 2013-01-16 18:55:29

Information was good but without pointers for emphysis, pictures and graphs didn't make the grade.

QPF Overview

1. Recall the three main factors to use when composing a QPF.
2. Explain which meteorological factors affect the quantitative part of QPF.
3. Identify meteorological factors that affect precipitation intensity.
4. Apply pattern recognition skills for anticipating precipitation.
5. Anticipate the influences to QPF from both synoptic and mesoscale processes.
6. Use soundings and the associated instability measures in QPFs.
7. Explain the mechanisms of cell movement and propagation.
8. Identify important impacts on QPF from propagation characteristics.
9. Anticipate how jet dynamics may influence precipitation amount and distribution.
10. Understand some of the unique aspects of tropical systems when composing QPF.

hydrology, qpf, flash flood, quantitative precipitation forecasting, quantitative precipitation forecast, numerical weather prediction (NWP), Maddox type, low level jet, theta-e, dewpoint, frontal type, mesohigh type, synoptic type, instability, moisture, lift, saturation thickness, precipitable water, backbuidling, outflow, precipitation efficiency, 500 mb ridge, upper jet, moisture advection, moisture convergence, warm cloud depth

April 2020 - The lesson was updated to current internet standards (mp4/html5), with no changes to content.

"August 2014: This lesson provides a thorough look at the basics of QPF, particularly warm-season precipitation. The material was captured during a 2001 classroom presentation. As a result there are some older NWP and satellite products used in the examples."