National Weather Service United States Department of Commerce

Ian Producing Heavy Rain, Flash Flooding, and High Winds in the Carolinas into the Mid-Atlantic

Ian is expected to move farther inland across central North Carolina. Tropical-storm-force winds are expected along the coasts of South Carolina and Southeastern North Carolina through early Saturday. Heavy rain and potential flash flooding are possible in parts of the North Carolina, South Carolina, Virginia and West Virginia through the morning. Read More >

NCEP 2022 Quarter 3 Newsletter


AWC National Aviation Meteorologists Provide CNBC Interview

Aviation Weather Center (AWC) National Aviation Meteorologists embedded within the FAA Air Traffic Control System Command Center (ATCSCC) in Warrenton, VA were featured in an interview on the impact of aviation weather to the National Airspace System. The interview aired on June 14, 2022. The NAMs provided insightful information which demonstrated the collaborative relationship with partners. The team highlighted the everyday impact decision support services they provide.

AWC NAM Kyle Struckmann


NCEP Production Suite Transition and Go-Live

NCEP Central Operations (NCO), in partnership with 9 development organizations, successfully transitioned the operational modeling suite onto the next phase of the Weather and Climate Operational Supercomputing System (WCOSS), going live on June 28, 2022. The two new Cray supercomputers are located in Manassas, Virginia (AKA Dogwood) and Phoenix, AZ (AKA Cactus). On the TOP500 list, they rank as numbers 49 and 50 fastest in the world, each providing 12.1 petaflops of computing speed, approximately three times faster than the previous systems. Over 45TB of data is disseminated off the system each day to serve the NWS offices, centers, and regions, our Government partners, and the public user community worldwide. Public users pull over 400TB of WCOSS model data per day from our dissemination websites.

This transition was an effort put forth from every branch within NCO. The Network and Security Branch (NSB) stood up a brand new 100Gb circuit that created a ring of redundancy and provided the security approval into our FISMA-high (FISMA stands for the ‘Federal Information Security Management Act,’ which set the security guidelines to protect government information) boundary. The Infrastructure and Web Services Branch (IWSB) created the virtual machines that provide administrative support access. The Software Development Branch (SDB) provided necessary code updates to port the Model Analyses and Guidance (MAG) website image creations. The Operational Monitoring Branch (OMB) provided dual monitoring support during the transition, as well as software code updates. And last, but not least, the Implementation and Data Services Branch (IDSB) SPA and Dataflow teams worked together to ensure that all of the data, the 84 packages within the suite, the 450 user accounts, and the 112,000 daily jobs that make up the NCEP production suite were ready for an operational take-over. NCO’s contributions and dedication to this multi-year project produced a completely seamless cutover on go-live day, paving the way for the next generation of models and upgrades.

Cray Supercomputer - Cactus, Located in Phoenix, AZ


On May 25th and 26th, SWPC hosted a NOAA-NASA workshop to address NOAA’s support of NASA’s human space flight initiatives. In addition, participants discussed opportunities to accelerate and enhance the research-to-operations (R2O) and enhance operations-to-research (O2R) processes.

NOAA has a proud history of space weather support for NASA human spaceflight that dates back to the Gemini missions in the 1960s and continues today. Humans in space are exposed to ionizing radiation from the space environment, and occasionally, the radiation exposure can reach very high, mission-impacting levels. Space weather support is necessary to provide warnings of enhanced radiation levels so that appropriate actions may be taken to protect astronauts. SWPC provides 24/7 support for NASA through the NASA Space Radiation Analysis Group (SRAG) at Mission Control, Johnson Space Center.

At the May 2022 workshop, SRAG presented a concept of operations for space weather events for the upcoming Artemis missions, with a focus on detailed and accurate advanced warnings of solar radiation storms. The workshop participants discussed the development of advanced operational capabilities for observing and forecasting the space radiation environment in support of the International Space Station (ISS), Artemis Gateway, and Lunar surface missions. Key to the discussions was how SWPC would collaborate with the relatively new NASA Moon-to-Mars (M2M) space weather office, which will serve as an operational proving ground for pre-deployment testing and operational readiness evaluation of models and tools for SWPC operations.

SWPC and NASA discussed ways to improve the O2R grants process, including the creation of transition step funding to help new capabilities reach a higher readiness level (RL) before entering one of the space weather proving grounds. Three R2O quick wins were identified for completion by next summer.  Those quick wins were in the areas of proving ground/testbed, O2R program, and atmospheric neutral density that will demonstrate progression in the R2O process to a higher RL and have a concrete benefit to space weather operations.


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