# Presentation: 661180

## IFPS Methodology Tips

- Sam Beckman

- IFPS BOU 01/03

## IFPS Methodologies

- Will vary with forecaster.
- Can provide tips on methods to try.
- There are many possibilities.
- On going evaluation of new guidance and adjusting the grids, to more detail (space and time) as the grids near the current time.

- IFPS BOU 01/03

## The Goal

- Develop a method to quickly and efficiently:
- Evaluate Guidance within IFPS.
- Create a grid with as much detail as possible in space and time.
- Create grid consistency among:
-  Elements.
- Neighboring offices.

- IFPS BOU 01/03

## Detailed Temperature Grid

- IFPS BOU 01/03

## Using the DFC

- Compare single model runs.
- Compare models.
- Compare sites.
- View past trends and observations.
- Extended guidance trends.
- Timing of fronts at specific site.

- IFPS BOU 01/03

## DFC Menu

- IFPS BOU 01/03

## Using the Grid Manager

- Order elements in a logical order.
- Setup different Weather Element Groups.

- IFPS BOU 01/03

## Grid Manager Sort Order

- IFPS BOU 01/03

## Grid Manager – Temp Guidance

- IFPS BOU 01/03

## Grid Manager – Temp Guidance #2

- IFPS BOU 01/03

## Grid Manager – Temps and 850 mb

- IFPS BOU 01/03

## Grid Manager - Wx and PoP

- IFPS BOU 01/03

## Grid Manager - Sky

- IFPS BOU 01/03

## Grid Manager - Evaluate Model Parms

- IFPS BOU 01/03

## Grid Manager – Severe Parms

- IFPS BOU 01/03

## Using the Spatial Editor

- Zoom in on display area.
- Active weather element in legend.

- IFPS BOU 01/03

## Spatial Editor - Compare Guidance

- IFPS BOU 01/03

## Spatial Editor – Compare T and 850 T

- IFPS BOU 01/03

## Edit Area and Query

- IFPS BOU 01/03

## Query 700 mb pvv field

- IFPS BOU 01/03

## Spatial Editor - Query of 700 mb pvv

- IFPS BOU 01/03

## Spatial Editor - Wx and 700 mb pvv

- IFPS BOU 01/03

## Spatial Editor - Wx and 700 mb pvv

- IFPS BOU 01/03

## Spatial Editor - Query of 700 mb pvv

- IFPS BOU 01/03

## Spatial Editor - Assign Value

- IFPS BOU 01/03

## Spatial Editor - Toggle Edit and Assign

- IFPS BOU 01/03

## Edit Areas

- Defined for unique geographical areas.
- Use the Quick Set buttons for creating unique areas based on current weather.
- Snow field, persistent clouds, etc.
- Do we need zone edit areas?  Anyone use?

- IFPS BOU 01/03

## Spatial Editor – Edit Areas

- IFPS BOU 01/03

## Using the Temporal Editor

- It’s a trend setter.
- Setup only one element.
- Use different edit areas to set the details.

- IFPS BOU 01/03

## CWA Edit Area

- IFPS BOU 01/03

## Temporal Editor - CWA

- IFPS BOU 01/03

## Snow Field Edit Area

- IFPS BOU 01/03

## Temporal Editor – Snow Field

- IFPS BOU 01/03

## Urban Edit Area

- IFPS BOU 01/03

## Temporal Editor – Urban area

- IFPS BOU 01/03

## Scratch Grid - Initial Edit Area

- IFPS BOU 01/03

## Temporal Editor - Diurnal cu

- IFPS BOU 01/03

## Show ISC Grid

- IFPS BOU 01/03

## Show ISC Area

- IFPS BOU 01/03

## Use of Smart Tools

- Scientifically correct?
- T to MaxT/MinT or reverse?
- Help in the editing process?
- Maintain consistency between grids?

- IFPS BOU 01/03

## Check for Temporal Consistency

- IFPS BOU 01/03

## Methodology Examples

- Cloud trends - Diurnal cu, cold air sc, clearing speed.
- Relate Wx to D2D grids - pvv, RH, thickness, 850 mb temps, etc.
- Wind speed and direction changes.
- Timing frontal passage.
- Consistency between Wx and PoP.
- Temperature trends.

- IFPS BOU 01/03

## Methodology Web Page

- http://www.nwstc.noaa.gov/nwstrn/ifpsmethod.htm

- IFPS BOU 01/03