000 WHUS52 KMFL 202118 SMWMFL AMZ630-651-202145- /O.NEW.KMFL.MA.W.0066.260420T2118Z-260420T2145Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Miami FL 518 PM EDT Mon Apr 20 2026 The National Weather Service in Miami has issued a * Special Marine Warning for... Biscayne Bay... Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM... * Until 545 PM EDT. * At 518 PM EDT, a strong thunderstorm was located over Turkey Point, moving south at 15 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Turkey Point and Card Sound. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. Report severe weather to the Coast Guard or the National Weather Service. You can also share your report with NWS Miami on Facebook and Twitter. && LAT...LON 2536 8037 2538 8035 2539 8035 2541 8027 2535 8025 2535 8026 2534 8025 2532 8025 2532 8026 2533 8026 2533 8029 2529 8033 TIME...MOT...LOC 2118Z 338DEG 14KT 2541 8031 HAIL...<.75IN WIND...>34KTS $$ WR  414 WHUS52 KKEY 202125 SMWKEY GMZ031-042-052-202215- /O.NEW.KKEY.MA.W.0050.260420T2125Z-260420T2215Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Key West FL 525 PM EDT Mon Apr 20 2026 The National Weather Service in Key West has issued a * Special Marine Warning for... Hawk Channel and Straits of Florida from Ocean Reef to Craig Key out 20 nm... Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound... * Until 615 PM EDT. * At 525 PM EDT, a strong thunderstorm was located over Angelfish Key, moving southeast at 15 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...National Weather Service Meteorologist. IMPACT...Expect wind gusts in excess of 34 knots, suddenly higher waves, frequent lightning, and heavy downpours. * Locations in the warning include... Key Largo Dry Rocks, Carysfort Reef Light, Grecian Rocks, Barnes Sound, and The Elbow Light. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters should seek safe harbor as quickly, and as safely as possible. When downpours reduce visibility, slow down. && LAT...LON 2515 7998 2513 7997 2498 8026 2519 8035 2523 8033 2520 8036 2529 8040 2530 8039 2525 8031 2528 8029 2532 8027 2532 8025 TIME...MOT...LOC 2125Z 330DEG 13KT 2530 8025 HAIL...0.00IN WIND...>34KTS $$ BT  559 WUUS52 KMFL 202156 SVRMFL FLC086-087-202230- /O.NEW.KMFL.SV.W.0020.260420T2156Z-260420T2230Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Miami FL 556 PM EDT Mon Apr 20 2026 The National Weather Service in Miami has issued a * Severe Thunderstorm Warning for... Southern Mainland Monroe County in southwestern Florida... Miami-Dade County in southeastern Florida... * Until 630 PM EDT. * At 556 PM EDT, a severe thunderstorm was located near Mahogany Hammock, or 12 miles north of Flamingo, moving southeast at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Mahogany Hammock and Everglades National Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 2533 8103 2541 8088 2529 8077 2520 8094 TIME...MOT...LOC 2156Z 323DEG 15KT 2533 8094 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ WR  444 WHUS52 KMFL 202157 SMWMFL GMZ657-202230- /O.NEW.KMFL.MA.W.0067.260420T2157Z-260420T2230Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Miami FL 557 PM EDT Mon Apr 20 2026 The National Weather Service in Miami has issued a * Special Marine Warning for... Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM... * Until 630 PM EDT. * At 557 PM EDT, a severe thunderstorm was located near Whitewater Bay, moving southeast at 20 knots. HAZARD...Wind gusts to nearly 50 knots and large hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. * Locations impacted include... Whitewater Bay. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. Report severe weather to the Coast Guard or the National Weather Service. You can also share your report with NWS Miami on Facebook and Twitter. && LAT...LON 2521 8095 2533 8103 2537 8095 2535 8090 2534 8089 2531 8090 2526 8087 2525 8087 2520 8090 TIME...MOT...LOC 2157Z 323DEG 18KT 2531 8092 HAIL...>.75IN WIND...49KTS $$ WR  835 FZUS72 KKEY 202158 MWSKEY Marine Weather Statement National Weather Service Key West FL 558 PM EDT Mon Apr 20 2026 GMZ031-042-052-202208- /O.CAN.KKEY.MA.W.0050.000000T0000Z-260420T2215Z/ 558 PM EDT Mon Apr 20 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Hawk Channel and Straits of Florida from Ocean Reef to Craig Key out 20 nm... Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound... The thunderstorm has weakened and no longer poses a significant threat to boaters. && LAT...LON 2515 7998 2513 7997 2498 8026 2519 8035 2523 8033 2520 8036 2529 8040 2530 8039 2525 8031 2528 8029 2532 8027 2532 8025 TIME...MOT...LOC 2154Z 330DEG 13KT 2520 8018 $$ BT