An extended period of hazardous marine winds, resultant from showers and thunderstorms, impacted the Florida Keys coastal waters in association with a slowly-developing low pressure system originating near the Yucatan Peninsula.  The low pressure, monitored for tropical cyclone development and designated as Potential Tropical Cyclone One, moved northeast and crossed the southern Florida peninsula the morning of June 4th.  The low pressure later attained the organization necessary to become Tropical Storm Alex well east of Florida.  As the low pressure required potential tropical cyclone advisories, a detailed report of maximum winds in the Florida Keys marine area is available from the MIAPSHKEY product (WMO Header ACUS72 KKEY) issued on June 7, 2022.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 02-JUN-22 11:00:00 to 02-JUN-22 11:00:00 (EST-5)
Location: SAND KEY LIGHT
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 36 knots was measured at the new Sank Key Light.

Marine Thunderstorm Wind in GULF OF MEXICO FROM EAST CAPE SABLE TO CHOKOLOSKEE 20 TO 60 NM OUT AND BEYOND 5 FATHOMS, GULF OF MEXICO
From 02-JUN-22 12:06:00 to 02-JUN-22 12:06:00 (EST-5)
Location: SMITH SHOAL LIGHT
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 36 knots was measured at the WeatherFlow station at Smith Shoal Light.

Marine Thunderstorm Wind in BAYSIDE AND GULFSIDE FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE, GULF OF MEXICO
From 02-JUN-22 12:10:00 to 02-JUN-22 12:10:00 (EST-5)
Location: LAYTON
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 36 knots was measured at Long Key Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 02-JUN-22 12:10:00 to 02-JUN-22 12:10:00 (EST-5)
Location: SAND KEY LIGHT
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 38 knots was measured at the new Sand Key Light.

Marine Thunderstorm Wind in GULF OF MEXICO FROM EAST CAPE SABLE TO CHOKOLOSKEE 20 TO 60 NM OUT AND BEYOND 5 FATHOMS, GULF OF MEXICO
From 02-JUN-22 12:41:00 to 02-JUN-22 12:41:00 (EST-5)
Location: SMITH SHOAL LIGHT
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 35 knots was measured at the WeatherFlow station at Smith Shoal Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 02-JUN-22 12:42:00 to 02-JUN-22 12:42:00 (EST-5)
Location: ALLIGATOR REEF LIGHT
Magnitude: 41.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 41 knots was measured at the WeatherFlow station at Alligator Reef Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 02-JUN-22 22:32:00 to 02-JUN-22 22:32:00 (EST-5)
Location: ALLIGATOR REEF LIGHT
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A south-southeast wind gust of 35 knots was measured at the WeatherFlow station at Alligator Reef Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 02-JUN-22 23:08:00 to 02-JUN-22 23:08:00 (EST-5)
Location: CARYSFORT REEF LIGHT
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A south wind gust of 35 knots was measured at the WeatherFlow station at Carysfort Reef Light.

Marine Thunderstorm Wind in GULF OF MEXICO FROM EAST CAPE SABLE TO CHOKOLOSKEE 20 TO 60 NM OUT AND BEYOND 5 FATHOMS, GULF OF MEXICO
From 03-JUN-22 00:56:00 to 03-JUN-22 00:56:00 (EST-5)
Location: SMITH SHOAL LIGHT
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A south-southeast wind gust of 35 knots was measured at the WeatherFlow station at Smith Shoal Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 08:27:00 to 03-JUN-22 08:27:00 (EST-5)
Location: ALLIGATOR REEF LIGHT
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A southeast wind gust of 36 knots was measured at a WeatherFlow station at Alligator Reef Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 10:00:00 to 03-JUN-22 10:00:00 (EST-5)
Location: SAND KEY LIGHT
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A southeast wind gust of 34 knots was measured at the new Sand Key Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 11:00:00 to 03-JUN-22 11:00:00 (EST-5)
Location: SAND KEY LIGHT
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 36 knots was measured at the new Sand Key Light.

Marine Thunderstorm Wind in GULF OF MEXICO FROM EAST CAPE SABLE TO CHOKOLOSKEE 20 TO 60 NM OUT AND BEYOND 5 FATHOMS, GULF OF MEXICO
From 03-JUN-22 11:16:00 to 03-JUN-22 11:16:00 (EST-5)
Location: SMITH SHOAL LIGHT
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 40 knots was measured at the WeatherFlow station at Smith Shoal Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 12:00:00 to 03-JUN-22 12:00:00 (EST-5)
Location: SOMBRERO KEY LIGHT
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 34 knots was measured at the new Sombrero Key Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 12:10:00 to 03-JUN-22 12:10:00 (EST-5)
Location: SAND KEY LIGHT
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 38 knots was measured at the new Sand Key Light.

Marine Thunderstorm Wind in GULF OF MEXICO FROM EAST CAPE SABLE TO CHOKOLOSKEE 20 TO 60 NM OUT AND BEYOND 5 FATHOMS, GULF OF MEXICO
From 03-JUN-22 12:36:00 to 03-JUN-22 12:36:00 (EST-5)
Location: SMITH SHOAL LIGHT
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 43 knots was measured at a WeatherFlow station at Smith Shoal Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 14:24:00 to 03-JUN-22 14:24:00 (EST-5)
Location: SAND KEY LIGHT
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 34 knots was measured at the new Sand Key Light.

Marine Thunderstorm Wind in GULF OF MEXICO FROM EAST CAPE SABLE TO CHOKOLOSKEE 20 TO 60 NM OUT AND BEYOND 5 FATHOMS, GULF OF MEXICO
From 03-JUN-22 14:25:00 to 03-JUN-22 14:25:00 (EST-5)
Location: SMITH SHOAL LIGHT
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 40 knots was measured at a WeatherFlow station at Smith Shoal Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 15:40:00 to 03-JUN-22 15:40:00 (EST-5)
Location: SAND KEY LIGHT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A south wind of 50 knots was measured at the new Sand Key Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 15:52:00 to 03-JUN-22 15:52:00 (EST-5)
Location: KEY WEST
Magnitude: 41.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

A south wind gust of 41 knots was measured at the National Weather Service Florida Keys RSOIS instrument in Key West.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 15:53:00 to 03-JUN-22 15:53:00 (EST-5)
Location: KEY WEST
Magnitude: 42.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A south-southeast wind gust of 42 knots was measured at Key West International Airport.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 15:53:00 to 03-JUN-22 15:53:00 (EST-5)
Location: BIG COPPITT KEY
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A southeast wind gust of 35 knots was measured at the Naval Air Station Key West Boca Chica Field.

Marine Thunderstorm Wind in HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 15:31:00 to 03-JUN-22 15:31:00 (EST-5)
Location: KEY WEST
Magnitude: 44.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A southeast wind gust of 44 knots was measured at Key West International Airport.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 15:22:00 to 03-JUN-22 15:22:00 (EST-5)
Location: ALLIGATOR REEF LIGHT
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A southeast wind gust of 35 knots was measured at a WeatherFlow station at Alligator Reef Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 16:17:00 to 03-JUN-22 16:17:00 (EST-5)
Location: ALLIGATOR REEF LIGHT
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A southeast wind gust of 35 knots was measured at a WeatherFlow station at Alligator Reef Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 18:00:00 to 03-JUN-22 18:00:00 (EST-5)
Location: SOMBRERO KEY LIGHT
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A south-southeast wind gust of 36 knots was measured at the new Sombrero Key Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 19:22:00 to 03-JUN-22 19:22:00 (EST-5)
Location: ALLIGATOR REEF LIGHT
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A southeast wind gust of 36 knots was measured by a WeatherFlow station at Alligator Reef Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 22:23:00 to 03-JUN-22 22:23:00 (EST-5)
Location: KEY LARGO
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A southeast wind gust of 34 knots was measured by a WeatherFlow station at Carysfort Reef Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE OUT TO THE REEF, GULF OF MEXICO
From 03-JUN-22 23:00:00 to 03-JUN-22 23:00:00 (EST-5)
Location: SOMBRERO KEY LIGHT
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A south-southwest wind gust of 35 knots was measured at the new Sombrero Key Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 04-JUN-22 00:57:00 to 04-JUN-22 00:57:00 (EST-5)
Location: ALLIGATOR REEF LIGHT
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A south wind gust of 39 knots was measured by a WeatherFlow station at Alligator Reef Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 04-JUN-22 00:58:00 to 04-JUN-22 00:58:00 (EST-5)
Location: CARYSFORT REEF LIGHT
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A south wind gust of 38 knots was measured by a WeatherFlow station at Carysfort Reef Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE OUT TO THE REEF, GULF OF MEXICO
From 04-JUN-22 01:03:00 to 04-JUN-22 01:03:00 (EST-5)
Location: DUCK KEY
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A south wind gust of 35 knots was measured by a WeatherFlow station on Crawl Key.

Marine Thunderstorm Wind in BAYSIDE AND GULFSIDE FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE, GULF OF MEXICO
From 04-JUN-22 01:00:00 to 04-JUN-22 01:00:00 (EST-5)
Location: LAYTON
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

A wind gust of 38 knots was measured at Long Key Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 04-JUN-22 01:43:00 to 04-JUN-22 01:43:00 (EST-5)
Location: CARYSFORT REEF LIGHT
Magnitude: 42.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 42 knots was measured by a WeatherFlow station at Carysfort Reef Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 04-JUN-22 04:12:00 to 04-JUN-22 04:12:00 (EST-5)
Location: ALLIGATOR REEF LIGHT
Magnitude: 39.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 39 knots was measured by a WeatherFlow station at Alligator Reef Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 04-JUN-22 05:08:00 to 04-JUN-22 05:08:00 (EST-5)
Location: CARYSFORT REEF LIGHT
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 43 knots was measured by a WeatherFlow station at Carysfort Reef Light.

Marine Thunderstorm Wind in GULF OF MEXICO FROM EAST CAPE SABLE TO CHOKOLOSKEE 20 TO 60 NM OUT AND BEYOND 5 FATHOMS, GULF OF MEXICO
From 04-JUN-22 05:16:00 to 04-JUN-22 05:16:00 (EST-5)
Location: SMITH SHOAL LIGHT
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 36 knots was measured by a WeatherFlow station at Smith Shoal Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 04-JUN-22 06:22:00 to 04-JUN-22 06:22:00 (EST-5)
Location: ALLIGATOR REEF LIGHT
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 43 knots was measured by a WeatherFlow station at Smith Shoal Light.

Marine Thunderstorm Wind in HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF, GULF OF MEXICO
From 04-JUN-22 13:53:00 to 04-JUN-22 13:53:00 (EST-5)
Location: CARYSFORT REEF LIGHT
Magnitude: 45.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust of 45 knots was measured by a WeatherFlow station at Carysfort Reef Light.