General Forecasting
Forecasting Tools/Models
Upper Air
100

This forecasting method is based on whether the weather will remain the same or change

What is persistence forecasting?

100

This describes 1 iteration of a model doing calculations for a forecast.

What is a model run?

100
This is the high velocity river of air that flows around the earth at the highest level of atmosphere.
What is the Jet Stream?
200

This forecasting method bases predictions on similar past weather events

What is analog forecasting?

200

This forecast model is the only American model that operates on the global scale.

What is the Global Forecast System (GFS)?

200
This type of flow pattern occurs when there is a N-S or S-N orientation to the Jet Stream.
What is Meridional Flow?
300
This technique provides a top-down structure to analyzing the atmosphere on different scales.
What is The Forecasting Funnel?
300

This weather model runs to 48 hours out every six hour run.

What is the High Resolution Rapid Refresh (HRRR)?

300
This type of trough orientation is indicative of strong low pressure systems.
What is Negative Tilt?
400

This forecasting method involves the use of computer forecasts and models.

What is Numerical Weather Prediction?

400

This weather model is the parent of the HRRR model.

What is the Rapid Refresh Model (RAP)?

400
This type of vorticity occurs in the left entrance region of a Jet Streak.
What is Anticyclonic Vorticity?
500

This forecasting method involves evaluating a changing parameter to determine if it will continue to change at a similar rate.

What is trend forecasting?

500

This German model can be useful for temperature forecasts.

What is the Icosahedral Nonhydrostatic (ICON) model?

500
This type of environment associated with Shortwave features marks the separation of air masses, is unstable, and usually associated with storms/severe weather
What is a Baroclinic Environment?
M
e
n
u