# Presentation: 072938

## IFPS Grid Editing and Product Methodology at HGX

- Matt Moreland – Forecaster NWSFO HGX

## Grid Editing – Public Desk

**MaxT/MinT**: grids edited by hand  then  DiurnalT Procedure populates **hourly T** grids
**Td**:  procedure populates MAV Td data another procedure runs Td_SmartTool and creates new set of **RH** grids
**HeatIndex/WindChill**  use procedures
**Sky**:  grids edited by hand (not by models)
**PoP**: grids edited by hand  SmartTools used to populate precip in **Wx** grids
**QPF**: done by hand or by populating model data from the Populate menu

## Grid Editing –Marine Desk

**Wind**:  procedures available  forecaster edits ALL the wind grids (inland and coastal waters)
**WaveHeight**:  currently no SmartTools installed  must edit hourly grids by hand
**MixHgt/TransWind for FWF**:  procedure lets forecaster import model data for MixHgt and runs SmartTool for calculating TransWind
**HrsOfSun for FWF**:  grids edited by hand
**Wx**:  double-checks Wx grids for marine area

## Grid Editing Time Table

- Wind grids done first – usually by 2PM/2AM
- Marine/public forecasters work on rest of the grids simultaneously
- Forecaster survey:  grid editing process on each side takes anywhere from 30 to 45 minutes, up to 2 hours depending on situation
- Marine/FWF grids are more tedious because of fewer SmartTools available and the learning curve because of new grids

## Available Procedures

**DiurnalTfromMaxTMinT**:  creates diurnal curve for hourly T grids based on MaxT/MinT values
**Create_RH_Grids**:  runs Td_SmartTool then creates RH grids based on T and Td
**Create_HeatIndex_Grids**
**Create_WindChill_Grids**
**Run_FWF_Procedures**:  populates model MixHgt values (NGM, ETA, or MesoEta) through 48 hours then runs TransWind_Tool using same model choice
**Populate_Td_Grids_from_MAV_MEX: **
-       (uses MatchMOS SmartTool)
**Populate_Wind_Grids_from_MAV_MRF: **
-       (uses MatchMOS and WindAdjust Tools)

## Wx SmartTools(create Wx grids based on PoP)

- TRW_ArealCov
- TRW_Categorical
- TRW_HeavyRain
- RWOnly_ArealCov
- RWOnly_Categorical
- StratiformRainOnly
- No tools for winter weather 

## Products – Public Desk

- Run Text formatters:
- 		CCF
- 		AFM
- 		PFM (set up but not yet issuing)
- 		ZFP (still requires post-editing to tweak 			wording and compare to grids)		SFT (will be issuing by May 1st)
- Send images to Southern Region server
- Send grib data to the NDFD

## Products – Marine Desk

- Text Formatters:
- 		MVF
- 		CWF (post-editing required mainly 			 for winds and wave heights)
- 		FWF (double-check values and type
- 			 a new synopsis)

## Grids – Forecaster Input	

- _Contour PoPs_:  strongly disliked at our office
- _FWF grids_:  forecasters want 12-hour grids vs. hourly grids  MixHgt values frequently way off using either the SmartTool or straight model data  changed FWF formatter to maximum MixHgt to compensate
- _Wind edits_:  no good method yet  edit areas too blocky, pencil tool not easy to use, model values too high inland, too low offshore
- _WaveHeight grids_:  hourly grids are tedious  we need to install a SmartTool to help

## Products – Forecaster Input

- Forecasters pleased with tabular formatters (AFM, PFM, CCF, MVF)
- _FWFTable formatter_:  want previous synopsis automatically pulled into product
- _ZFP formatter_:  temperature wording too limited (want to say “lows around 60” or a range if needed, but not *always*) – remaining issues should be ironed out with RPP 21
- _CWF formatter_:  winds come out too high in the final product; width of wave height range should vary based on actual contoured values (7 to 12 feet instead of 9 to 11 feet)