Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Miami, FL

June 29, 2021Broward County, Florida

NWS Miami, FL issued this special weather statement at Jun 29, 2021, 8:11 PM EDT for Broward County, Florida. It was in force for 49 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
Jun 29, 2021, 8:11 PM EDT (00:11 UTC)
Expired
Jun 29, 2021, 9:00 PM EDT
In force
49 min
Issued by
NWS Miami, FL

County Broward County, FL

The radar

The Miami radar (KAMX), 38 km from the middle of the area, began a volume at 00:13 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

Key West, FL (KEYW), launched 00:00Z, 0.2 hours before the alert went out and 206 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.

Skew-T log-pSkew-T log-p diagram, Key West, FL at 00:00Z on 2021-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 905 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Key West, FL at 00:00Z on 2021-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
905 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
1036 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 Jun 29, 8:05 PM EDT, 6 minutes earlier.

Area forecast discussion, Jun 29, 8:05 PM EDT, 6 minutes before
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Hazardous weather outlook, Jun 29, 4:18 PM EDT, 3 hours 53 minutes before
Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
418 PM EDT Tue Jun 29 2021

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
300830-
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-
418 PM EDT Tue Jun 29 2021

...Scattered To Numerous Showers and Thunderstorms This Evening...
...High Risk of Rip Currents Palm Beaches...

This hazardous weather outlook is for South Florida.

.DAY ONE...TONIGHT

Rip currents: There is a high risk of rip currents along the beaches
of Palm Beach county. There is also a moderate risk of rip currents
along the beaches of Broward and Miami-Dade counties.

Thunderstorms: Scattered to numerous thunderstorms are likely
this evening. Main concerns are frequent lightning strikes, gusty
winds, small hail, and locally heavy rainfall.

Waterspouts: Waterspouts will be possible with showers and storms
over the local waters tonight.

Wind: Wind gusts in excess of 45 mph are possible with the strongest
thunderstorms this evening.

Hail: Small hail is possible with strongest storms this evening.

Flooding: Localized flooding is possible with the heaviest showers
and thunderstorms tonight.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

The elevated risk of rip currents will continue through mid week
across portions of the Atlantic coast before gradually subsiding by
late week.

Shower and thunderstorm chances will remain above normal through the
end of the week. The strongest storms could contain frequent
lightning strikes, gusty winds, and localized flooding. The chances
of thunderstorms remain elevated at this time for the upcoming
holiday weekend.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated, however individual spotters
are encouraged to report high wind, hail and flooding to the National
Weather Service forecast office in Miami.

For more information...visit the National Weather Service in Miami
website at www.weather.gov/miami.

In the hours before

Special weather statement, Jun 29, 2:31 PM EDT, 5 hours 40 minutes before
Special Weather Statement
National Weather Service Miami FL
231 PM EDT Tue Jun 29 2021

FLZ069-070-291930-
Coastal Collier County FL-Inland Collier County FL-
231 PM EDT Tue Jun 29 2021

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN COLLIER COUNTY UNTIL 330
PM EDT...

* At 231 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm over West Toll Gate On Alligator
  Alley, or over Golden Gate Estates, moving west at 20 mph.

* Winds in excess of 45 mph and funnel clouds possible with this
  storm.

* Locations impacted include...
  Naples, Ave Maria, Golden Gate Estates, Belle Meade, Orangetree,
  Golden Gate, East Naples, Lely Resort, Big Corkscrew Island,
  Vineyards, Royal Palm Hammock, Naples Park, Marco Island Airport,
  Naples Manor, West Toll Gate On Alligator Alley, North Naples,
  Pelican Bay, Corkscrew Swamp Sanctuary, Lely and Rookery Bay
  Aquatic 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.

&&

LAT...LON 2610 8197 2633 8184 2633 8182 2632 8182
      2632 8166 2642 8166 2642 8157 2643 8156
      2627 8135 2588 8144
TIME...MOT...LOC 1831Z 101DEG 16KT 2618 8162

RF
Special weather statement, Jun 29, 4:50 PM EDT, 3 hours 21 minutes before
Special Weather Statement
National Weather Service Miami FL
450 PM EDT Tue Jun 29 2021

FLZ063-066-292130-
Hendry FL-Glades FL-
450 PM EDT Tue Jun 29 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL HENDRY AND GLADES
COUNTIES UNTIL 530 PM EDT...

* At 449 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm near Moore Haven, moving northwest
  at 20 mph.

* Winds in excess of 45 mph and funnel clouds possible with this
  storm.

* Locations impacted include...
  Labelle, Moore Haven, Lakeport, Palmdale, Ortona, Muse, Port La
  Belle and Lake Hicpochee.

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.

This activity was also developing in an environment favorable for the
formation of funnel clouds. Stay tuned to NOAA weather radio and
local media for additional updates and possible warnings.

&&

LAT...LON 2712 8126 2683 8098 2672 8105 2678 8157
      2703 8156 2703 8134 2704 8134 2704 8133
      2703 8133 2703 8127 2712 8127
TIME...MOT...LOC 2049Z 121DEG 18KT 2679 8111

Frye
Special weather statement, Jun 29, 5:17 PM EDT, 2 hours 54 minutes before
Special Weather Statement
National Weather Service Miami FL
517 PM EDT Tue Jun 29 2021

FLZ070>075-173-292200-
Inland Broward County FL-Inland Collier County FL-Mainland Monroe FL-
Metro Broward County FL-Metropolitan Miami Dade FL-Inland Miami-
Dade County FL-Coastal Miami Dade County FL-
517 PM EDT Tue Jun 29 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MIAMI-DADE AND SOUTHERN
BROWARD COUNTIES UNTIL 600 PM EDT...

* At 516 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm near Intersection Krome And U.S. 27,
  or 11 miles southwest of Miramar, moving northwest at 15 mph.

* Winds in excess of 45 mph and funnel clouds possible with this
  storm.

* Locations impacted include...
  Miami, Hialeah, Miramar, Miami Beach, Coral Gables, Key Biscayne,
  South Miami, Virginia Key, Kendall, Doral, Miami Lakes, Hialeah
  Gardens, Pinecrest, Opa-Locka, Miami Springs, Sweetwater, West
  Miami, Medley, Westchester and Gladeview.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

This activity was also developing in an environment favorable for the
formation of funnel clouds. Stay tuned to NOAA weather radio and
local media for additional updates and possible warnings.

&&

LAT...LON 2553 8017 2579 8088 2629 8086 2578 8012
TIME...MOT...LOC 2116Z 122DEG 13KT 2588 8049

RF
Local storm report, Jun 29, 5:37 PM EDT, 2 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
537 PM EDT TUE JUN 29 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0520 PM     WATER SPOUT      1 NE KEY BISCAYNE       25.70N  80.15W
06/29/2021                   AMZ651             FL   FIRE DEPT/RESCUE

            A WATERSPOUT WAS SPOTTED OFF OF KEY BISCAYNE BY THE KEY
            BISCAYNE FIRE CHIEF. PICTURES OF THIS WATERSPOUT WERE
            ALSO REPORTED ON LOCAL NEWS STATIONS.

&&

EVENT NUMBER MFL2100039

CWC
Special weather statement, Jun 29, 6:56 PM EDT, 1 hour 15 minutes before
Special Weather Statement
National Weather Service Miami FL
656 PM EDT Tue Jun 29 2021

FLZ071>074-173-292345-
Inland Broward County FL-Metro Broward County FL-
Metropolitan Miami Dade FL-Inland Miami-Dade County FL-
Coastal Miami Dade County FL-
656 PM EDT Tue Jun 29 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MIAMI-DADE COUNTY UNTIL
745 PM EDT...

* At 656 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm over Glenvar Heights, or over South
  Miami, moving northwest at 15 mph.

* Winds in excess of 45 mph and funnel clouds possible with this
  storm.

* Locations impacted include...
  Miami, Coral Gables, South Miami, Kendall, Doral, Hialeah Gardens,
  Pinecrest, Miami Springs, Sweetwater, West Miami, Medley,
  Westchester, Glenvar Heights, Fountainbleau, Richmond Heights,
  Kendale Lakes, Palmetto Bay, Pennsuco, University Of Miami and
  Intersection Krome And U.S. 27.

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.

&&

LAT...LON 2573 8022 2559 8032 2579 8063 2599 8046
TIME...MOT...LOC 2256Z 128DEG 15KT 2572 8032

RF
Special weather statement, Jun 29, 8:11 PM EDT, 0 minutes before
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The office that day

Everything else NWS Miami, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 29, 8:30 PM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade2 hr
Jun 30, 11:44 AM EDTSpecial Weather StatementMFLBroward31 min
Jun 30, 11:49 AM EDTSpecial Weather StatementMFLMonroe26 min
Jun 30, 12:17 PM EDTSpecial Marine WarningMFL43 min
Jun 30, 12:49 PM EDTSpecial Weather StatementMFLMonroe41 min
Jun 30, 12:51 PM EDTSpecial Marine WarningMFL39 min
Jun 30, 2:19 PM EDTSpecial Weather StatementMFLCollier41 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.