Skew-T Mastery
Produced by The COMET
®
Program
Table of Contents
Chapters
1. Skew-T Description
2. Parameters
3. Stability
4. Forecast Applications
2. Parameters
Introduction
Moisture/Humidity
Saturation Mixing Ratio (w
s
)
Definition
Skew-T Procedure
Question
Mixing Ratio (w)
Definition
Skew-T Procedure
Question
Relative Humidity (RH)
Definition & Skew-T Procedure
Question
Dewpoint Depression
Definition
Question
Saturation Vapor Pressure (e
s
)
Definition
Skew-T Procedure
Question
Vapor Pressure (e)
Definition
Skew-T Procedure
Question
Temperature/Levels
Virtual Temperature (T
v
)
Definition
Skew-T Procedure
Question
Potential Temperature (Theta)
Definition
Skew-T Procedure
Question
Lifting Condensation Level (LCL)
Definition
Skew-T Procedure
Question
Equivalent Temperature (T
e
)
Definition
Skew-T Procedure
Question
Equivalent Potential Temperature (Theta-e)
Definition
Skew-T Procedure
Question
Wet-Bulb Temperature (T
w
)
Definition
Skew-T Procedure
Question
Wet-Bulb Potential Temperature (Theta-w)
Definition
Skew-T Procedure
Question
Convective Condensation Level (CCL)
Definition
Skew-T Procedure
Question
Convective Temperature (T
c
)
Definition
Skew-T Procedure
Question
Thickness
Definition
Skew-T Procedure
Strengths and Limitations
Other Levels
Freezing Level
Definition & Skew-T Procedure
Question
Wet-Bulb Zero Level
Definition & Skew-T Procedure
Question
Level of Free Convection (LFC)
Definition
Skew-T Procedure
Question
Mixing Condensation Level (MCL)
Definition
Skew-T Procedure
Question 1
Question 2
Tropopause
Definition
Question
Equilibrium Level (EL)
Definition
Skew-T Procedure for a
Lifted
Surface Parcel
Skew-T Procedure for a
Heated
Surface Parcel
Question
Maximum Parcel Level (MPL)
Definition
Skew-T Procedure
Question
Stability Assessment
Convective Available Potential Energy (CAPE)
Definition
Strengths and Limitations
Skew-T Procedure
Question
Convective Inhibition (CIN)
Definition
Skew-T Procedure
Question
Lifted Index (LI)
Definition
Strengths and Limitations
Skew-T Procedure
Question
Showalter Stability Index (SSI)
Definition
Strengths and Limitations
Skew-T Procedure
Question
K Index (KI)
Definition, Strengths and Limitations
Skew-T Procedure
Question
Total Totals Index (TT)
Definition, Strengths and Limitations
Skew-T Procedure
Question
SWEAT Index
Definition
Strengths and Limitations
Skew-T Procedure
Question
Shear Assessment
Bulk Richardson Number (BRN)
Definition
Skew-T Procedure
Helicity
Definition
Vorticity
Storm-Relative Wind
SREH Computation
Helicity, Vorticity, and Supercells
Strengths and Limitations
Interactive Skew-T
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Quiz
User Survey
References
Stability Assessment » Convective Available Potential Energy (CAPE)
Question
Which of these two soundings has greater CAPE?
A
B
Neither, CAPE is the same in both
"Neither, CAPE is the same in both" is correct. The shaded area in both soundings is about the same. In fact, while one CAPE area is tall and narrow and the other is short and wide, both soundings have CAPE values of about 2330 J/kg.
Incorrect. Compare the shaded areas in two sounding, then try again.
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