Alert archive / Florida / Special Marine Warnings in 2021

Special Marine Warning 498, NWS Miami, FL

October 28, 2021

NWS Miami, FL issued this special marine warning at Oct 28, 2021, 5:40 PM EDT. It was in force for 35 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
Oct 28, 2021, 5:40 PM EDT (21:40 UTC)
Expired
Oct 28, 2021, 6:15 PM EDT
In force
35 min
Issued by
NWS Miami, FL
Area
Storm-based polygon
Hail
0.0 in
Wind
34.0 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 Oct 28, 3:14 PM EDT, 2 hours 26 minutes earlier.

Area forecast discussion, Oct 28, 3:14 PM EDT, 2 hours 26 minutes before
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Hazardous weather outlook, Oct 28, 3:46 PM EDT, 1 hour 54 minutes before
Hazardous Weather Outlook for South Florida...UPDATED
National Weather Service Miami FL
346 PM EDT Thu Oct 28 2021

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
291200-
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-
346 PM EDT Thu Oct 28 2021

...Strong to Isolated Severe Storms Possible Through Tonight...
...Deteriorating Beach/Marine Conditions Tonight Into Early Weekend...

This hazardous weather outlook is for South Florida.

.DAY ONE...REST OF THIS AFTERNOON AND TONIGHT

Rip currents: High Risk of rip currents for the Gulf Coast beaches
of South Florida today.

Thunderstorms: Scattered to numerous showers and thunderstorms will
develop, increasing from west to east through rest of this afternoon
into tonight. Some of these thunderstorms may become severe. Strong
to damaging wind gusts, isolated tornadoes, small hail, and flooding
cannot be ruled out.

Tornadoes: An isolated tornado is possible with the stronger
thunderstorms that develop.

Waterspouts: Waterspouts are possible across all South Florida local
waters with showers and thunderstorms that develop.

Wind: Strong to damaging wind gusts are possible with the strongest
thunderstorms that develop. Winds of 20 to 25 knots, with higher
gusts, across the South Florida waters.

Flooding: Localized flooding will be possible across metro portions
of the region through tonight especially locations that receive
repeated bouts of heavy rainfall.

Waves: Seas 5 to 7 feet, with occasional seas to 8 feet, possible
across outer Gulf waters later tonight.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

Lingering showers and thunderstorms behind a strong frontal passage are
possible Friday. Lightning and wind gusts will be the main hazards,
though overall threat will diminish from west to east throughout the
day Friday.

Hazardous marine conditions stick around into the upcoming weekend.
Additionally, a high risk of rip currents for the Gulf Coast
continues through the first half of the weekend while simultaneously
materializing along the Atlantic coast, especially the Palm Beaches.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may 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.

Baxter

In the hours before

Special weather statement, Oct 28, 3:43 PM EDT, 1 hour 57 minutes before
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Special weather statement, Oct 28, 4:19 PM EDT, 1 hour 21 minutes before
Special Weather Statement
National Weather Service Miami FL
419 PM EDT Thu Oct 28 2021

FLZ072-074-172-173-282045-
Coastal Broward County FL-Metro Broward County FL-
Metropolitan Miami Dade FL-Coastal Miami Dade County FL-
419 PM EDT Thu Oct 28 2021

...Gusty showers will impact portions of northern Miami-Dade and
southern Broward Counties through 445 PM EDT...

At 418 PM EDT, National Weather Service meteorologists were tracking
gusty showers capable of producing a funnel cloud along a line
extending from Melrose Park to Opa-Locka. Movement was northeast at
30 mph.

HAZARD...Funnel clouds and winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Funnel clouds occasionally touch down and produce tornadoes
         or waterspouts. Gusty winds could knock down tree limbs and
         blow around unsecured objects.

Locations impacted include...
Miami, Hialeah, Fort Lauderdale, Pembroke Pines, Hollywood, Miramar,
Pompano Beach, Davie, Miami Beach, Lighthouse Point,
Lauderdale-By-The-Sea, Surfside, Hallandale, Miami Gardens, North
Miami, North Miami Beach, Oakland Park, Aventura, Dania Beach and
Sunny Isles Beach.

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 2604 8011 2585 8012 2581 8029 2624 8015
      2629 8008
TIME...MOT...LOC 2018Z 237DEG 25KT 2612 8019 2589 8028

FUNNEL CLOUD...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

AR
Special weather statement, Oct 28, 5:32 PM EDT, 8 minutes before
Special Weather Statement
National Weather Service Miami FL
532 PM EDT Thu Oct 28 2021

FLZ063-066-282230-
Hendry FL-Glades FL-
532 PM EDT Thu Oct 28 2021

...Strong thunderstorms will impact portions of northwestern Hendry
and Glades Counties through 630 PM EDT...

At 531 PM EDT, National Weather Service meteorologists were tracking
strong thunderstorms capable of producing a funnel cloud along a line
extending from 12 miles west of Venus to near Olga. Movement was east
at 35 mph.

HAZARD...Funnel clouds and winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Funnel clouds occasionally touch down and produce tornadoes
         or waterspouts. Gusty winds could knock down tree limbs and
         blow around unsecured objects.

Locations impacted include...
Labelle, Moore Haven, Lakeport, Buckhead Ridge, Palmdale, Felda, Port
La Belle, Brighton Seminole Reservation, Devils Garden, Ortona, Muse,
Indian Prairie Canal Mouth, Lake Hicpochee and Keri.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 2721 8094 2719 8091 2717 8090 2717 8088
      2714 8087 2718 8084 2698 8093 2695 8100
      2689 8100 2688 8097 2652 8117 2652 8156
      2703 8156 2703 8127 2712 8127 2712 8117
      2721 8117
TIME...MOT...LOC 2131Z 261DEG 30KT 2701 8154 2669 8166

FUNNEL CLOUD...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

Hadi

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 28, 3:12 AM EDTRip Current StatementMFLCollier, Palm Beach3 days
Oct 28, 3:13 AM EDTSmall Craft AdvisoryMFL65 hr
Oct 28, 3:43 PM EDTSpecial Weather StatementMFLBroward62 min
Oct 28, 3:47 PM EDTSpecial Marine WarningMFL58 min
Oct 28, 4:18 PM EDTSpecial Marine WarningMFL42 min
Oct 28, 4:19 PM EDTSpecial Weather StatementMFLBroward26 min
Oct 28, 4:42 PM EDTSpecial Marine WarningMFL63 min
Oct 28, 4:53 PM EDTSpecial Marine WarningMFL67 min
Oct 28, 5:32 PM EDTSpecial Weather StatementMFLGlades58 min
Oct 28, 5:43 PM EDTSpecial Marine WarningMFL92 min
Oct 28, 6:01 PM EDTSpecial Marine WarningMFL41 min
Oct 28, 6:12 PM EDTSpecial Marine WarningMFL33 min
Oct 28, 6:39 PM EDTSpecial Weather StatementMFLHendry36 min
Oct 28, 6:57 PM EDTSpecial Weather StatementMFLCollier48 min
Oct 28, 7:07 PM EDTSpecial Weather StatementMFLHendry38 min
Oct 28, 7:11 PM EDTSpecial Marine WarningMFL94 min
Oct 28, 7:12 PM EDTSpecial Marine WarningMFL93 min

Nearby

Special Marine Warnings in Florida, 2021Every 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.