Alert archive / Florida / Special Weather Statements in 2021
Special Weather Statement, NWS Miami, FL
NWS Miami, FL issued this special weather statement at Apr 12, 2021, 7:00 AM EDT for Palm Beach County, Florida. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 12, 2021, 7:00 AM EDT (11:00 UTC)
- Expired
- Apr 12, 2021, 7:45 AM EDT
- In force
- 45 min
- Issued by
- NWS Miami, FL
County Palm Beach County, FL
The radar
The Miami radar (KAMX), 101 km from the middle of the area, began a volume at 11:04 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Miami, FL (KMFL), launched 00:00Z, 11.0 hours before the alert went out and 76 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 877 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- -285 m²/s²
- 0-3 km storm-relative helicity
- -52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Miami, FL wrote its last area forecast discussion before this special weather statement went out at Apr 12, 2:55 AM EDT, 4 hours 5 minutes earlier.
Area forecast discussion, Apr 12, 2:55 AM EDT, 4 hours 5 minutes before
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<meta charset="utf-8">
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<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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</html>Hazardous weather outlook, Apr 12, 4:37 AM EDT, 2 hours 23 minutes before
Hazardous Weather Outlook for South Florida National Weather Service Miami FL 437 AM EDT Mon Apr 12 2021 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 122045- Lake Okeechobee-Biscayne Bay- Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM- Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM- Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM- Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas-Glades-Hendry- Inland Palm Beach-Metro Palm Beach-Coastal Collier-Inland Collier- Inland Broward-Metro Broward-Inland Miami-Dade-Metro Miami-Dade- Mainland Monroe-Coastal Palm Beach-Coastal Broward-Coastal Miami- Dade-Far South Miami-Dade- Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM- Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM- Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM- 437 AM EDT Mon Apr 12 2021 ...A FEW THUNDERSTORMS STILL POSSIBLE THIS MORNING... ...HIGH RISK OF RIP CURRENTS FOR ALL PALM BEACHES TODAY... This hazardous weather outlook is for South Florida. .DAY ONE...TODAY AND TONIGHT Thunderstorms: A few thunderstorms may still develop this morning, mainly over the central-southern portions of South Florida today. Waterspouts: Waterspouts will be possible across all local waters this morning, with greatest risk across the Atlantic waters. Rip currents: There is a high risk of rip currents for all beaches of Palm Beach county. A moderate risk remains in effect for all beaches of Miami-Dade, Broward, and Collier counties. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY Elevated risk of rip currents may linger into Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation will be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. For more information...visit the National Weather Service in Miami website at www.weather.gov/miami.
In the hours before
Special weather statement, Apr 12, 1:01 AM EDT, 5 hours 59 minutes before
Special Weather Statement
National Weather Service Miami FL
101 AM EDT Mon Apr 12 2021
FLZ070-071-073-075-120545-
Inland Broward County FL-Inland Collier County FL-Mainland Monroe FL-
Inland Miami-Dade County FL-
101 AM EDT Mon Apr 12 2021
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN COLLIER...NORTHERN
MAINLAND MONROE...NORTHERN MIAMI-DADE AND SOUTHERN BROWARD COUNTIES
UNTIL 145 AM EDT...
* At 101 AM EDT, National Weather Service meteorologists were
tracking a strong thunderstorm near Loop Road Ee Center, or 22
miles east of Chokoloskee, moving east at 45 mph.
* Winds in excess of 45 mph possible with this storm.
* Locations impacted include...
The Redland, Loop Road Ee Center, Dade-Collier Training Airport,
Fortymile Bend, Shark Valley Obs Tower, Everglades National Park
and Big Cypress National Preserve.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm. If
you can hear thunder, you are close enough to be struck! Seek a safe
shelter inside a building or vehicle.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.
&&
LAT...LON 2562 8106 2615 8091 2603 8046 2549 8059
2559 8096
TIME...MOT...LOC 0501Z 287DEG 41KT 2581 8100
ARSpecial weather statement, Apr 12, 1:11 AM EDT, 5 hours 49 minutes before
Special Weather Statement
National Weather Service Miami FL
111 AM EDT Mon Apr 12 2021
FLZ069-070-073-075-120545-
Coastal Collier County FL-Inland Collier County FL-
Mainland Monroe FL-Inland Miami-Dade County FL-
111 AM EDT Mon Apr 12 2021
...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL COLLIER AND
NORTHERN MAINLAND MONROE COUNTIES UNTIL 145 AM EDT...
* At 109 AM EDT, National Weather Service meteorologists were
tracking a strong thunderstorm 10 miles southwest of Chokoloskee,
moving east at 55 mph.
* Winds in excess of 45 mph and funnel clouds possible with this
storm.
* Locations impacted include...
Chokoloskee, Everglades City, Plantation Island, Wilderness
Waterway, Everglades National Park and Big Cypress National
Preserve.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.
&&
LAT...LON 2544 8125 2548 8128 2566 8136 2573 8134
2575 8139 2583 8143 2587 8137 2583 8100
2562 8106 2556 8085 2527 8101
TIME...MOT...LOC 0509Z 283DEG 48KT 2568 8144
HVNSpecial weather statement, Apr 12, 1:27 AM EDT, 5 hours 33 minutes before
Special Weather Statement
National Weather Service Miami FL
127 AM EDT Mon Apr 12 2021
FLZ071>074-172>174-120615-
Inland Broward County FL-Coastal Broward County FL-
Metro Broward County FL-Metropolitan Miami Dade FL-Far South Miami-
Dade County FL-Inland Miami-Dade County FL-
Coastal Miami Dade County FL-
127 AM EDT Mon Apr 12 2021
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MIAMI-DADE AND SOUTHERN
BROWARD COUNTIES UNTIL 215 AM EDT...
* At 127 AM EDT, National Weather Service meteorologists were
tracking strong thunderstorms along a line extending from East Toll
Gate On Alligator Alley to 6 miles northeast of Pa-Hay-Okee
Overlook. Movement was east at 55 mph.
* Winds in excess of 45 mph possible with these storms.
* Locations impacted include...
Miami, Hialeah, Fort Lauderdale, Pembroke Pines, Hollywood,
Miramar, Davie, Miami Beach, Plantation, Sunrise, Homestead, Coral
Gables, Key Biscayne, South Miami, Surfside, Homestead General
Airport, Miami Gardens, Virginia Key, Hallandale and Homestead
Miami Speedway.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms. If
you can hear thunder, you are close enough to be struck! Seek a safe
shelter inside a building or vehicle.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.
&&
LAT...LON 2578 8012 2567 8016 2541 8033 2540 8061
2616 8043 2615 8011
TIME...MOT...LOC 0527Z 269DEG 49KT 2613 8050 2549 8070
ARSpecial weather statement, Apr 12, 7:00 AM EDT, 0 minutes before
Special Weather Statement National Weather Service Miami FL 700 AM EDT Mon Apr 12 2021 FLZ067-068-071-072-168-172-121145- Inland Broward County FL-Coastal Broward County FL- Coastal Palm Beach County FL-Metro Broward County FL- Inland Palm Beach County FL-Metro Palm Beach County FL- 700 AM EDT Mon Apr 12 2021 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN PALM BEACH COUNTY UNTIL 745 AM EDT... * At 659 AM EDT, National Weather Service meteorologists were tracking a strong thunderstorm near Loxahatchee NWR, or 10 miles southwest of Wellington, moving east at 50 mph. * Funnel clouds possible with this storm. * Locations impacted include... West Palm Beach, Boca Raton, Deerfield Beach, Boynton Beach, Delray Beach, Wellington, Lake Worth, Riviera Beach, Palm Beach, Highland Beach, Ocean Ridge, Coconut Creek, Greenacres, Royal Palm Beach, Parkland, Palm Springs, Lantana, Atlantis, Haverhill and Cloud Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... These winds can down small tree limbs and branches, and blow around unsecured small objects. Seek shelter in a safe building until the storm passes. && LAT...LON 2634 8049 2669 8050 2683 7970 2631 7985 TIME...MOT...LOC 1059Z 267DEG 44KT 2656 8039 Frye
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 10:02 PM EDT | Special Weather Statement | MFL | Collier | 43 min |
| Apr 11, 11:28 PM EDT | Special Marine Warning | MFL | 47 min | |
| Apr 12, 12:00 AM EDT | Special Weather Statement | MFL | Collier | 45 min |
| Apr 12, 12:10 AM EDT | Special Marine Warning | MFL | 50 min | |
| Apr 12, 12:23 AM EDT | Special Weather Statement | MFL | Collier | 52 min |
| Apr 12, 12:58 AM EDT | Special Marine Warning | MFL | 32 min | |
| Apr 12, 1:01 AM EDT | Special Weather Statement | MFL | Miami-Dade | 44 min |
| Apr 12, 1:11 AM EDT | Special Weather Statement | MFL | Monroe | 34 min |
| Apr 12, 1:27 AM EDT | Special Weather Statement | MFL | Miami-Dade | 48 min |
| Apr 12, 4:40 AM EDT | Rip Current Statement | MFL | Palm Beach | 15 hr |
| Apr 12, 8:24 AM EDT | Special Marine Warning | MFL | 51 min | |
| Apr 12, 3:33 PM EDT | Special Weather Statement | MFL | Broward | 42 min |
| Apr 12, 4:15 PM EDT | Special Weather Statement | MFL | Miami-Dade | 45 min |
Nearby
Special Weather Statements in Florida, 2021Every special weather statement in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.