11

GFE at the NW Forecast Center

Harold Opitz

Hydrologist in ChargeNorthwest River Forecast Center

22

New direction by NWSNew direction by NWS

Replacement for WR MM Replacement for WR MM systemsystem

CollaborationCollaboration ISC capabilitiesISC capabilities

Expansion to other modelingExpansion to other modeling DHMDHM

GFE at NWRFCImpetus

33

Mechanical HurdlesMechanical Hurdles Can GFE run at an RFC?Can GFE run at an RFC?

Initial distribution on DX1Initial distribution on DX1 Performance issues/Compete with CPU Performance issues/Compete with CPU

resourcesresources Grid Resolution/Domain sizeGrid Resolution/Domain size

PowerPC attached to AWIPS productionPowerPC attached to AWIPS production Stand Alone GFEStand Alone GFE

ATAN Site ATAN Site

GFE at NWRFCMechanics

44

Experiment with GridsExperiment with Grids

GFE at an RFC?GFE at an RFC? PowerPC attached to AWIPSPowerPC attached to AWIPS Stand alone GFEStand alone GFE

3-Phase project3-Phase project

ATANATAN

GFE at NWRFC3-Phase Project

55

Parallel with Legacy SystemParallel with Legacy System Mitigate Performance issuesMitigate Performance issues Generate Precip/Temp grid and point dataGenerate Precip/Temp grid and point data

Explore “Smart” Tool and Formatter DevelopmentExplore “Smart” Tool and Formatter Development

Demonstrate ISC capabilitiesDemonstrate ISC capabilities

VerificationVerification Emulate WFO verificationEmulate WFO verification BOIverifyBOIverify

GFE at NWRFCPhase I

66

Emulate Current Legacy System ServicesEmulate Current Legacy System Services

10-day forecast Precip, Temp, Freeze Level10-day forecast Precip, Temp, Freeze Level Day 1-3 & Day 4-10Day 1-3 & Day 4-10

Forecast ProductionForecast Production Use Model Input - eg, GFS40, ETA12, DGEXUse Model Input - eg, GFS40, ETA12, DGEX WFO Input - ISCWFO Input - ISC Blank screenBlank screen OR any mix of the aboveOR any mix of the above

Exercise ISC capabilitiesExercise ISC capabilities

GFE at NWRFC

77

Precipitation 10 days - 6 hr steps

Temp(mx) 10.5 days - 6 hr steps

• 2.5 km• 604x644=388976 grid cells

• Point data•Precip•Temp (max/min)• Freeze Levels

• Mean Areal Precip (phase 2)• Mean Areal Temp (phase 2)

• 10 days• 6 hour time steps

GFE at NWRFC

88

Daily Products Daily Products

Formatters to SHEF Formatters to SHEF encodeencode

GFE at NWRFC

99

Spring 2006 used GFE as Spring 2006 used GFE as Supplemental tool during April Supplemental tool during April Through JuneThrough June

Fall 2006 has GFE moving up Fall 2006 has GFE moving up quickly in priority as an quickly in priority as an operational tooloperational tool Used extensively during all event in Nov/DecUsed extensively during all event in Nov/Dec Priority Change due to Priority Change due to newnew HAS staff HAS staff

GFE remains “supplemental” in GFE remains “supplemental” in operations.operations.

GFE at NWRFC

1010

Phase 2Phase 2 Mean Areals directly from grid dataMean Areals directly from grid data Apply PRISM techniquesApply PRISM techniques Reverse ISC – Xmit RFC grids to Reverse ISC – Xmit RFC grids to

WFOs…WFOs…

Phase 3Phase 3 Operational?Operational? Training?Training?

GFE at NWRFCThe Other Phases

1111

VerificationVerification

TrainingTraining Meteorologist / HydrologistMeteorologist / Hydrologist Probabilistic / EnsembleProbabilistic / Ensemble

SupportSupport Hardware/SoftwareHardware/Software EnhancementEnhancement

GFE at NWRFCTo Be Accomplished or What to do to be Operational