The following has been received from the ARRL

SB SPCL @ ARL $ARLX011
ARLX011 FEMA Announces HF Interoperability Activity on 60-Meter
Channels 1 and 2

ZCZC AX11
QST de W1AW
Special Bulletin 11 ARLX011
From ARRL Headquarters
Newington CT August 31, 2021
To all radio amateurs

SB SPCL ARL ARLX011
ARLX011 FEMA Announces HF Interoperability Activity on 60-Meter
Channels 1 and 2

Channels 1 and 2 on 60 meters will be available starting on August
30 for interoperability between US government and US amateur radio
stations involved in Hurricane Ida emergency communications. This
situation will remain in place until the storm has passed and the
need for these channels no longer exists, or on September 6,
whichever comes first.

These frequencies will be used: Channel 1 Primary voice traffic 5332
kHz channel center, 5330.5 kHz USB voice; and Channel 2 Digital
traffic 5348 kHz channel center, 5346.5 kHz USB with 1.5 kHz offset
to center of digital waveform. Stations on 60 meters are asked to
yield to operational traffic related to Hurricane Ida.–