Global Hourly HF Propagation Maps

Washington DC

Maximum Frequency for NVIS HF Communications Within 300 kilometers of Your Location By Region – Updated Hourly At 40 Minutes Past The Hour

Courtesy of HFPack.com:

HFpack is the International Resource for Amateur Radio HF Portable – Mobile – Emergency Communications – Ham Radio Information Exchange – Nets – Ionospheric Propagation.
HFpack provides an information exchange about transceivers, antennas, systems, High Frequency communications, QRP, HF packs, propagation, EMCOMM, new developments and
techniques in VHF and HF portable operation. Radio Amateurs are invited to participate in HFpack group forums and on-the-air nets around the world.