Rapid Refresh (RAP) [13 km]
The Rapid Refresh (RAP) numerical weather model took the place of the Rapid Update Cycle (RUC) on May 1, 2012. Run by the National Centers for Environmental Prediction (NCEP), RAP runs with two versions. The first generates weather data on a 13-km (8-mile) resolution horizontal grid and the second, the High-Resolution Rapid Refresh (HRRR), generates data down to a 3-km (2-mile) resolution grid for smaller regions of interest. RAP forecasts are generated every hour with forecast lengths going out 18 hours with a 1 hour temporal resolution. Multiple data sources go into the generation of RAP forecasts: commercial aircraft weather data, balloon data, radar data, surface observations, and satellite data. This dataset contains a 13 km horizontal resolution Lambert Conformal grid covering the Continental United States (CONUS) domain.
Cite this dataset when used as a source.
- NCEI DSI 6187_08
- gov.noaa.ncdc:C00690
C00690
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Distribution Formats |
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | Customer Engagement Branch
NOAA National Centers for Environmental Information 1-828-271-4800 ncei.orders@noaa.gov |
Dataset Point of Contact | DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
nomads.ncdc@noaa.gov |
Coverage Description | |
Time Period | 2012-05-09 to Present |
Spatial Bounding Box Coordinates |
N: 59.0
S: 16.2
E: -57.3
W: -139.9
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Spatial Coverage Map |
General Documentation |
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Data Presentation Form | Digital model - multi-dimensional digital representation of a feature, process, etc.
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Dataset Progress Status | Ongoing - data is continually being updated |
Data Update Frequency | Daily |
Purpose | Developed to serve users needing frequently updated short-range weather forecasts, including those in the US aviation community and US severe weather forecasting community. Also used prominently for energy-related (especially renewable) forecast guidance. |
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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Place keywords | Global Change Master Directory (GCMD) Location Keywords
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Project keywords | Global Change Master Directory (GCMD) Project Keywords
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Data Resolution keywords | Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
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Stratum keywords | Global Change Master Directory (GCMD) Location Keywords
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Use Constraints | No constraint information available |
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Last Modified: 2023-07-11
For questions about the information on this page, please email: ncei.info@noaa.gov