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****THIS IS A NON-OPERATIONAL WEBSITE****

WPC-HMT Realtime Webpage

Welcome to the Weather Prediction Center's Hydrometeorology Testbed (HMT) Webpage


This is an experimental webpage that displays operational and experimental Models and Ensembles. Experimental dataflow is sporadic, so if a model/ensemble is missing check to see if there is an earlier run. If the model/ensemble is still missing, we apologize and hope to have data available next time you visit.

The products shown on this webpage are NOT official NWS products. Information about WPC-HMT and all experiment Final Reports can be found here. If you have any questions about the webpage or HMT please contact Sarah Trojniak (sarah.trojniak@noaa.gov) or Jimmy Correia (james.correia@noaa.gov) or Massey Bartolini (massey.bartolini@noaa.gov).

We are currently transitioning to a new website, which can be found here. If you are interested in other developmental websites we support please see the Experiment Websites - Data Visualization tab in the HMT and NOAA Websites dropdown. This includes an interactive soundings viewer that displays HREF and REFS membership soundings; in collaboration with David Harrison (SPC).

We are in the planning stages for the Winter Weather Experiment (WWE) and the Precipitation Experiemnt for Atmospheric Rivers (PEAR). If you are interested in participating and are part of NOAA or one of our partners, please fill out this form or this form.


Subhourly RRFS data is now avaliable. The latency is between 3 and 4 hours.

Forecast Hour

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HRRR - 1 hr Composite Reflectivity
This image is unavailable how unFFaIR. Please use the slider to see if it is just this time period that is missing for this parameter or if it's the whole cycle that is missing.