PlacefileNation was created and is maintained by a team of seasoned meteorologists and weather enthusiasts to provide weather data placefiles for GRLevelX, GR2, GR3, WSV3, and Supercell Wx applications across the United States.
Analyzing radar with reliable data overlays provides a more seamless, worry-free experience. We know this, which is why we manage and monitor our own data feeds. All placefile URLs are permanent — we never break your setup.
Questions or feedback? Reach us at
: The OS can now install directly onto GPT-partitioned drives. This bypasses the old 2TB storage limit of the MBR standard, allowing ArcaOS to coexist on modern, large-capacity SSDs and NVMe storage devices.
: ArcaOS remains true to its roots, running classic OS/2 applications like Lotus Smartsuite and Mesa/2 natively. Arcaos 5.1 Iso
Robust USB 2.0 and USB 3.0 stack support ensures compatibility with modern keyboards, mice, flash drives, and external storage. 4. Robust Virtualization Support : The OS can now install directly onto
The represents the most advanced, commercially supported distribution of the classic IBM OS/2 Warp operating system tailored for modern computer hardware. Developed by Arca Noae , ArcaOS 5.1 bridges the gap between 1990s legacy software and 21st-century hardware platforms. Rather than acting as a simple theme or emulation layer, ArcaOS boots natively on modern processors, managing multi-core architectures, USB 3.0 routing, and NVMe high-speed storage. Robust USB 2
: The OS can now install directly onto GPT-partitioned drives. This bypasses the old 2TB storage limit of the MBR standard, allowing ArcaOS to coexist on modern, large-capacity SSDs and NVMe storage devices.
: ArcaOS remains true to its roots, running classic OS/2 applications like Lotus Smartsuite and Mesa/2 natively.
Robust USB 2.0 and USB 3.0 stack support ensures compatibility with modern keyboards, mice, flash drives, and external storage. 4. Robust Virtualization Support
The represents the most advanced, commercially supported distribution of the classic IBM OS/2 Warp operating system tailored for modern computer hardware. Developed by Arca Noae , ArcaOS 5.1 bridges the gap between 1990s legacy software and 21st-century hardware platforms. Rather than acting as a simple theme or emulation layer, ArcaOS boots natively on modern processors, managing multi-core architectures, USB 3.0 routing, and NVMe high-speed storage.
National Water Prediction Service (formerly AHPS) river gauge data. Filter to action stage or higher.
CWA boundaries, radar site status, and NOAA Weather Radio transmitter locations.
USGS earthquake data plotted in near real-time by hour and day.
NHC forecast tracks for tropical storms and hurricanes. Only visible near radar-covered landmasses.
Download and replace your color table settings for a more refined radar analysis experience.
Enhanced reflectivity palette for improved storm structure analysis.
Download .palVelocity color curve tuned for rotation and wind shear detection.
Download .palSRM palette optimized for mesocyclone and tornado vortex signature analysis.
Download .palPlacefileNation is a conceptual method to provide weather data for GR2, GR3, GRLevelX, WSV3, and Supercell Wx applications. PlacefileNation is in no way affiliated or associated with the National Weather Service. No warranties of this system or data quality assurances are implied. There is no guarantee that the placefiles will always be available or that the data displayed will always be up-to-date and/or correct. These placefiles are in continual development and thus are subject to change at any time.