Hydro - OCLO

OCLO VLab Hydro Page

This page is designed to host hydro references. Current VLab reference materials include:

Hydro Hazard Simplification
- HazSimp Job Sheet introduces forecasters to the changes with Hydro Haz Simp
- HazSimp FAQs

Average Recurrence Intervals (ARIs)
- ARI Reference Page - Users
- ARI Download Instructions - Focal Points
  - ARI Installation Package for GFE
  - FFMP ARI configuration instructions
- ARI CONUS-wide Images
- FAQs for ARIs
- Comparison of ARIs
  - NOAA Atlas-14 and NSSL developed slightly different ARI grids for the CONUS. This page shows some examples of how they can differ.
- NOAA Atlas-14 ARI homepage (web)

FFMP
- FFMP Reference Page - Users

Multi-Radar/Multi-Sensor (MRMS)
- MRMS Products Guide
- MRMS Operational Viewer

Radar & Applications Course (RAC)
- RAC Procedures Download Page
- RAC Flash Flood Procedures Descriptions (PDF)

High-resolution Precipitation Estimator (HPE) and Bias HPE
- HPE/Bias HPE Reference Page - Users
- HPE/Bias HPE Reference Page - Focal Points (PDF)
  - Greg Hanson presentation (PDF) - HPE misbin settings for complex terrain

High-resolution Precipitation Nowcaster (HPN)
- HPN Reference Page - Users
- HPN Reference Page - Focal Point

AWIPS Build Changes
- Click here to view a detailed list of AWIPS build updates, including hydro (available since 14.3.1)

NWS Directives
- NWS 10-921 (PDF) : WFO Hydrologic Operations
- NWS 10-922 (PDF) : WFO Hydrologic Products Specifications
- NWS 10-923 (PDF) : WFO Hydrologic Product Examples

Flash Flood Jobsheets and One-pagers

Flash Flood Warning Methodology (.pdf)
- A one-page methodology for flash flood warning operations, beginning with analyzing your environment and antecedent conditions through recommended FFW polygonology and text fundamentals.
Flash Flood Assessment (.pdf)
- A one-page assessment to help you work through the flash flood methodology, focused particularly on how to pick the optimal precip source.
WDTD Dual-Pol Flipchart