Marine Coast Guard Wx (id ??) 6501 USB 0940 UTC 18 Sept 2023

[TRI International]

0940 UTC om with weather conditions'
0950 UTC Id not a to catch due to noise
0953 UTC Om with station id to all stations

Audio 1 : https://voca.ro/12CgdpzOHjlk
Audio 2 : https://voca.ro/1extdycvGT0R

S 7 to 8 with severe noise and fading

[~SIGINT~]

I heard that one late last evening as well (approx 04:00 UTC). The voice is "Iron Mike" (USCG).

This is the National Weather Service Marine Products via U.S. Coast Guard HF Voice and the stations registered to broadcast on 6501.0 kHz are:

Chesapeake (NMN), Kodiak (NOJ), Honolulu (NMO) and Guam (NRV)

Based on the time of your logging and the USCG schedule, this would have been either Chesapeake (NMN) or Guam (NRV). My guess is Chesapeake (NMN) as its 09:30Z broadcast schedule has a note attached to it which reads "Offshore Forecasts, hurricane information".

Marine Weather Broadcasts from the USCG
https://www.weather.gov/marine/uscg_broadcasts

Icom R75 | Mini-whip antenna

[TRI International]

Thanks for the information, I'll try again and hope for better conditions.

[~SIGINT~]

210540Z SEP 2023 6051.0 kHz USB
05:40Z USCG Communications Command with a series of broadcast messages from the Miami Hurricane Watch Center.

National Hurricane Center and Central Pacific Hurricane Center
https://www.nhc.noaa.gov/marine/

ZCZC MIATWOAT ALL
TTAA00 KNHC DDHHMM

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 AM EDT Thu Sep 21 2023

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

Active Systems:
The National Hurricane Center is issuing advisories on Hurricane
Nigel, located over the central subtropical Atlantic.

1. Eastern Tropical Atlantic:
A tropical wave is currently located near the Cabo Verde Islands. 
This system is expected to merge with another disturbance located a
few hundred miles to its west in a few days.  Environmental
conditions are forecast to be conducive for gradual development, and
a tropical depression is likely to form late this week or this
weekend while the system moves generally westward at 10 to 15 mph
across the eastern and central tropical Atlantic.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...high...70 percent.

2. Western Atlantic:
A non-tropical low pressure system is expected to form within a
large area of disorganized showers and thunderstorms to the east
of the Florida peninsula within the next day or so.  This system
could acquire some subtropical characteristics on Friday while it
moves generally northward.  Regardless of development, this low is
likely to bring gusty winds to gale force, heavy rain, and high surf
to portions of the Southeast and Mid-Atlantic United States late
this week and into this weekend.  Additional information on this
system can be found in High Seas Forecasts and products from your
local National Weather Service office.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...medium...40 percent.

High Seas Forecasts issued by the National Weather Service
can be found under AWIPS header NFDHSFAT1, WMO header FZNT01
KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php

Icom R75 | Mini-whip antenna