Overview
The Multi-Radar Multi-Sensor (MRMS) Quantitative Precipitation Estimation (QPE) products are seamless 1 km mosaics of precipitation accumulation covering the continental United States, Alaska, Hawaii, the Caribbean, and Guam. The products are automatically generated through integration of data from multiple radars and radar networks, surface and satellite observations, numerical weather prediction (NWP) models, and climatology. The products are updated hourly at the top of the hour.
MRMS QPE is available as a "Pass 1" or "Pass 2" product. The Pass 1 product is available with a 60-minute latency and includes 60-65% of gauges. The Pass 2 product has a higher latency of 120 minutes, but includes 99% of gauges. The Pass 1 and Pass 2 products are broken into 1-, 3-, 6-, 12-, 24-, 48-, and 72-hour accumulation sub-products.
Further information about NOAA's MRMS QPE products can be found in the technical product guide.
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NOAA MRMS QPE 24-Hour Pass 2
Integrated multi-sensor cumulative precipitation estimate for the past 24 hours with a 2-hour latency.
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NOAA MRMS QPE 1-Hour Pass 1
Integrated multi-sensor cumulative precipation estimate for the past hour with a 1-hour latency.
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NOAA MRMS QPE 1-Hour Pass 2
Integrated multi-sensor cumulative precipation estimate for the past hour with a 2-hour latency.