Alert archive / Florida / Special Marine Warnings in 2021

Special Marine Warning 320, NWS Miami, FL

August 4, 2021

NWS Miami, FL issued this special marine warning at Aug 4, 2021, 12:58 PM EDT. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 4, 2021, 12:58 PM EDT (16:58 UTC)
Expired: Aug 4, 2021, 2:00 PM EDT
In force: 62 min
Issued by: NWS Miami, FL
Area: Storm-based polygon
Hail: 0.0 in
Wind: 40.0 mph

What forecasters said that day

The local office's own words before this special marine warning 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 marine warning went out at Aug 4, 9:40 AM EDT, 3 hours 18 minutes earlier.

Area forecast discussion, Aug 4, 9:40 AM EDT, 3 hours 18 minutes before

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Hazardous weather outlook, Aug 4, 9:42 AM EDT, 3 hours 16 minutes before

Hazardous Weather Outlook for South Florida...UPDATED
National Weather Service Miami FL
942 AM EDT Wed Aug 4 2021

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
050100-
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-
942 AM EDT Wed Aug 4 2021

...Scattered To Numerous Storms Expected With Heavy Rainfall...
...A Few Strong Storms Possible This Afternoon East Coast Metro Areas...

This hazardous weather outlook is for South Florida.

.DAY ONE...TODAY AND TONIGHT

Thunderstorms: Scattered to numerous thunderstorms are expected,
mainly this morning through early afternoon over Southwest Florida,
and from midday through the early evening across Southeast Florida.
Frequent lightning, heavy downpours, funnel clouds, and gusty winds
will be the primary potential hazards with the strongest
thunderstorms.

Flooding: Localized flooding is possible due to heavy downpours from
thunderstorms over low-lying and poor drainage areas, especially in
Southwest Florida this morning, and Southeast Florida this afternoon
and evening.

Wind: A few strong storms could produce wind gusts in excess of 45
mph.

Tornadoes: A weak tornado or two are possible along eastern areas
this afternoon.

Waterspouts: Waterspouts are possible across the South Florida
waters today, especially in the Atlantic waters and Biscayne Bay.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Scattered to numerous showers and thunderstorms will be possible
across South Florida for the rest of this week and into the upcoming
weekend with the focus shifting to the interior and west coast metro
areas. In addition, a few strong storms could develop with locally
gusty winds, waterspouts, heavy rainfall, and frequent lightning
strikes.

.SPOTTER INFORMATION STATEMENT...

Widespread 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.

Molleda

In the hours before

Local storm report, Aug 4, 10:40 AM EDT, 2 hours 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
1040 AM EDT WED AUG 4 2021

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

0810 PM     TSTM WND DMG     3 SSE KENDALE LAKES     25.67N 80.41W
08/03/2021                   MIAMI-DADE         FL   NWS EMPLOYEE

            A MEDIUM-LARGE TREE WAS UPROOTED NEAR THE
            INTERSECTION OF SW 130 AVENUE AND KILLIAN
            PARKWAY IN WEST KENDALL. VERY SMALL BRANCHES
            AND LEAVES WERE SCATTERED ACROSS THE GENERAL
            AREA FROM STRONG WINDS ASSOCIATED WITH THE
            STORM.

&&

RM

Special weather statement, Aug 4, 12:02 PM EDT, 56 minutes before

Special Weather Statement
National Weather Service Miami FL
1202 PM EDT Wed Aug 4 2021

FLZ071>073-041645-
Inland Broward County FL-Metro Broward County FL-Inland Miami-
Dade County FL-
1202 PM EDT Wed Aug 4 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL MIAMI-DADE AND
SOUTH CENTRAL BROWARD COUNTIES UNTIL 1245 PM EDT...

* At 1202 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm 9 miles south of Mile Marker 30 On
  Alligator Alley, or 14 miles west of Pembroke Pines, moving east at
  15 to 20 mph.

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

* Locations impacted include...
  Pembroke Pines, Miramar, Weston, Mile Marker 30 On Alligator Alley,
  Intersection Krome And U.S. 27, East Toll Gate On Alligator Alley
  and Intersection I-75 And U.S. 27.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 2592 8063 2611 8068 2622 8039 2596 8035
TIME...MOT...LOC 1602Z 260DEG 18KT 2602 8058

MOLLEDA

Special weather statement, Aug 4, 12:40 PM EDT, 18 minutes before

Special Weather Statement
National Weather Service Miami FL
1240 PM EDT Wed Aug 4 2021

FLZ067-068-071>074-173-041715-
Inland Broward County FL-Metro Broward County FL-
Metropolitan Miami Dade FL-Inland Palm Beach County FL-Inland Miami-
Dade County FL-Metro Palm Beach County FL-
Coastal Miami Dade County FL-
1240 PM EDT Wed Aug 4 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MIAMI-DADE...BROWARD AND
SOUTHEASTERN PALM BEACH COUNTIES UNTIL 115 PM EDT...

* At 1240 PM EDT, National Weather Service meteorologists were
  tracking strong thunderstorms along a line extending from near
  Parkland to near Sawgrass Mills Mall to Pembroke Pines. Movement
  was east at 15 mph.

* Small hail and winds in excess of 45 mph possible with these
  storms.

* Locations impacted include...
  Fort Lauderdale, Pembroke Pines, Hollywood, Miramar, Coral Springs,
  Pompano Beach, Davie, Plantation, Sunrise, Boca Raton, Deerfield
  Beach, Delray Beach, Tamarac, Margate, Miami Gardens, Lauderhill,
  Weston, Coconut Creek, North Miami Beach and Oakland Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 2625 8017 2592 8017 2590 8039 2621 8045
      2640 8036 2647 8009
TIME...MOT...LOC 1640Z 262DEG 11KT 2634 8030 2623 8035 2602 8033

SB

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 8:00 PM EDT	Special Weather Statement	MFL	Miami-Dade	60 min
Aug 3, 8:11 PM EDT	Special Weather Statement	MFL	Miami-Dade	49 min
Aug 3, 8:16 PM EDT	Areal Flood Advisory	MFL	Miami-Dade	119 min
Aug 3, 8:27 PM EDT	Areal Flood Advisory	MFL	Miami-Dade	2 hr
Aug 3, 9:29 PM EDT	Special Weather Statement	MFL	Miami-Dade	61 min
Aug 4, 7:49 AM EDT	Areal Flood Advisory	MFL	Collier	2 hr
Aug 4, 8:44 AM EDT	Areal Flood Advisory	MFL	Collier	2 hr
Aug 4, 11:15 AM EDT	Areal Flood Advisory	MFL	Collier	3 hr
Aug 4, 11:53 AM EDT	Special Marine Warning	MFL		67 min
Aug 4, 12:02 PM EDT	Special Weather Statement	MFL	Broward	43 min
Aug 4, 12:40 PM EDT	Special Weather Statement	MFL	Broward	35 min
Aug 4, 1:11 PM EDT	Areal Flood Advisory	MFL	Broward, Miami-Dade	2 hr
Aug 4, 1:11 PM EDT	Special Weather Statement	MFL	Broward	64 min
Aug 4, 1:25 PM EDT	Areal Flood Advisory	MFL	Broward, Palm Beach	2 hr
Aug 4, 3:18 PM EDT	Areal Flood Advisory	MFL	Miami-Dade	117 min

Nearby

Special Marine Warnings in Florida, 2021 Every special marine warning 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.