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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


We just completed the first Precipitation Extremes from Atmospheric Rivers (PEAR) Experiment. We are currently planning for the 2024-2025 season of WWE and our second round of PEAR. Please keep an eye out for our call to participate. Deterministic models are separated by either the HREF Group or REFS Group. The HRRR and GFS are in both groups since they will be operational after the implementation of the RRFS. In the dropdown menus, anything that is part of the HREF group is highlighed light blue and anything in the REFS Group is light purple. NOTE: Any MPAS models that we are plotting will be under the HREF Group even though they are NOT part of the HREF membership.


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 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) or Tomer Burg (tomer.burg@noaa.gov).

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).


The WWE and PEAR Seminar Series starts Tues. Dec 3 at 1pm EDT. It runs every Tues/Thurs, excluding Holiday weeks and the week of AMS at that time through March. More information to come. If you are interested in any of the seminars hosted by HMT, the slides can be found here.

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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.