High and Low Pressure Systems; Convergence and Divergence
Forecasting, misc.
Fronts/airmasses
100
Most common thunderstorm and least common thunderstorm
What is multi-cell and single-cell
100
Feature of a hurricane that causes the most damage
What is a storm surge
100
When there is divergence aloft (at the jet stream level) what will the pressure be like at the surface?
What is low pressure
100
Temperature scale for surface station models in the United States
What is Fahrenheit
100
Boundary between two air masses
What is a front
200
Reason why some microbursts are symmetrical and some are not
What is strong wind
200
Strongest of the three Category 5 hurricanes recorded in the United States
What is Strongest of the three Category 5 hurricanes recorded in the United States
200
An area of particularly strong winds embedded in the jet stream
What is Jet streak/jet max/jet core
200
Pressure in millibars of an area where the coded pressure on the station model is “133”
What is 1013.3
200
Name two characteristics necessary for an area to be a good source region for air masses
What is Relatively flat land, light/no winds, similar temperature characteristics, similar moisture characteristics
300
This type of thunderstorm usually forms in front of cold fronts or dry lines
What is Squall lines (AKA multi-cellular lines)
300
Name of the scale that measures hurricane intensity; the lowest wind speed for a tropical storm to be called a hurricane
What is Saffir-Simpson scale, 74 mph/64 kts.
300
Cars speeding up on a highway is an analogy for this air movement in the jet stream
What is divergence
300
A value greater than 3500 j/kg on this index means that air is extremely unstable
What is CAPE (Convective Available Potential Energy)
300
• Front that separates air masses with different moisture characteristics but similar temperatures
What is a dryline
400
The name for the feature on a radar image that often indicates the location of a tornado
What is hook echo
400
Hurricanes can be synoptic in scale, but most often are treated as this scale
What is mesoscale
400
This region of a map showing jet stream curvature and a jet streak is most likely to have a strong surface low pressure
What is The upper right side, where there is divergence aloft from curvature and jet streak
400
Name two of the three ways lightning can travel
What is Cloud-to-ground, cloud-to-cloud (intercloud), and within one cloud (intracloud)
TO NOTE: the book also describes lightning that travels cloud to air
400
Weather you might expect along a cold front if the cold air is advancing into conditionally unstable air
What is a thunderstorm
500
In this stage of tornado development, the pressure in the thunderstorm lowers, the wall cloud descends from the thunderstorm and the funnel descends from the wall cloud
What is dust-whirl stage
500
These two winds meet at the Intertropical Convergence Zone (ITCZ)
What is Northeast Trade Winds and Southeast Trade Winds
500
This force is greater than the pressure gradient force when the winds in a jet stream are slower than geostrophic
What is Coriolis Force
500
Name of a new-generation satellite that has instruments that can measure vertical profiles of temperature and humidity in the atmosphere (only need acronym, not full name)
What is GOES satellite (Geostationary Operational Environmental Satellite)
500
Front in which the air behind the warm front is colder than the air behind the cold front (be specific!)