1. CHPS Implementation at NERFC CHPS Implementation at NERFC Many successes mixed with a few setbacks David R. Vallee HIC/NERFC Feb 24-26 Meeting

2. The Setbacks Getting to Gridded MAP Getting to Gridded MAP Our extremely liberal approach to real-time precipitation gage data bit us “big-time”! Our extremely liberal approach to real-time precipitation gage data bit us “big-time”! Daily QC application has come a long way Daily QC application has come a long way And it exposed all our warts… And it exposed all our warts… Expanded the capability of a local Grass-based application to get our hands around 1, 6, 24 hour data scrubbing before DQC launches Expanded the capability of a local Grass-based application to get our hands around 1, 6, 24 hour data scrubbing before DQC launches

3. The Setbacks Getting to Gridded MAP Getting to Gridded MAP Our extremely liberal approach to real-time precipitation gage data bit us “big-time”! Our extremely liberal approach to real-time precipitation gage data bit us “big-time”! Daily QC application has come a long way Daily QC application has come a long way And it exposed all our warts… And it exposed all our warts… Expanded the capability of a local Grass -based application to get our hands around 1, 6, 24 hour data scrubbing before DQC launches Expanded the capability of a local Grass -based application to get our hands around 1, 6, 24 hour data scrubbing before DQC launches ***WISH LIST: Link hourly MPE with DQC Time Distribution!!!! *** ***WISH LIST: Link hourly MPE with DQC Time Distribution!!!! ***

4. The Setbacks December software build – or what we thought would be the start of true Parallel Operations December software build – or what we thought would be the start of true Parallel Operations Launched staff into daily touches (M-F) on all basins Launched staff into daily touches (M-F) on all basins Quickly realized that SAC bucket states weren’t being carried over properly Quickly realized that SAC bucket states weren’t being carried over properly But that’s ok – time to play “BUG-HUNT”! But that’s ok – time to play “BUG-HUNT”! To continue staff touches/learning activities we developed a series of “Quiz questions” To continue staff touches/learning activities we developed a series of “Quiz questions” Instructed staff to continue to play – isolate your time & effort to a particular segment and whack away! Instructed staff to continue to play – isolate your time & effort to a particular segment and whack away! One unsolved mystery with HEC-RAS on the Hudson – but it’s working well on all our other river segments One unsolved mystery with HEC-RAS on the Hudson – but it’s working well on all our other river segments

5. The Successes! Producing gridded MAPs via DQC Producing gridded MAPs via DQC MPE grids flowing as well MPE grids flowing as well Producing MATs and all future forcings (QPF, Temps (upper/lower zone) and Contingency QPF via GFE Producing MATs and all future forcings (QPF, Temps (upper/lower zone) and Contingency QPF via GFE All grids from GFE are driving both IFP and CHPS! All grids from GFE are driving both IFP and CHPS! Gridded MATs requested by forecasters to be available in IFP! They have been that superior to the preprocessed data during our melt events Gridded MATs requested by forecasters to be available in IFP! They have been that superior to the preprocessed data during our melt events

6. Multi-variable plots configured

7. Looky what we can SWE!!

8. Looky what we can SWE!!!

9. SACSMA in Action

11. And lastly – don’t SREF the small stuff!

12. CHPS Implementation at NERFC CHPS Implementation at NERFC Many successes mixed with a few setbacks David R. Vallee HIC/NERFC Feb 24-26 Meeting