Alert archive / Florida / Special Marine Warnings in 2021

Special Marine Warning 336, NWS Miami, FL

August 9, 2021

NWS Miami, FL issued this special marine warning at Aug 9, 2021, 9:19 PM EDT. It was in force for 41 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 9, 2021, 9:19 PM EDT (01:19 UTC)
Expired
Aug 9, 2021, 10:00 PM EDT
In force
41 min
Issued by
NWS Miami, FL
Area
Storm-based polygon
Hail
0.75 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 Aug 9, 8:56 PM EDT, 23 minutes earlier.

Area forecast discussion, Aug 9, 8:56 PM EDT, 23 minutes before
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Hazardous weather outlook, Aug 9, 7:18 PM EDT, 2 hours 1 minute before
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In the hours before

Special weather statement, Aug 9, 3:33 PM EDT, 5 hours 46 minutes before
Special Weather Statement
National Weather Service Miami FL
333 PM EDT Mon Aug 9 2021

FLZ066-070-092015-
Hendry FL-Inland Collier County FL-
333 PM EDT Mon Aug 9 2021

...Strong thunderstorms will impact portions of northern Collier and
southern Hendry Counties through 415 PM EDT...

At 333 PM EDT, National Weather Service meteorologists were tracking
strong thunderstorms capable of producing a funnel cloud along a line
extending from 8 miles northeast of Hendry Correctional to near Ave
Maria to Big Corkscrew Island. Movement was west at 10 mph.

HAZARD...Funnel clouds, winds in excess of 40 mph, and pea size
         hail.

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...
Ave Maria, Golden Gate Estates, Immokalee, Hendry Correctional,
Felda, Orangetree, Big Corkscrew Island, Corkscrew Swamp Sanctuary,
Sunniland, Bunker Hill and Lake Trafford.

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.

&&

LAT...LON 2632 8166 2642 8166 2642 8156 2655 8156
      2659 8122 2651 8097 2620 8104 2619 8164
      2632 8167
TIME...MOT...LOC 1933Z 095DEG 8KT 2642 8114 2634 8140 2635 8156

FUNNEL CLOUD...POSSIBLE
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

Weinman
Special weather statement, Aug 9, 3:43 PM EDT, 5 hours 36 minutes before
Special Weather Statement
National Weather Service Miami FL
343 PM EDT Mon Aug 9 2021

FLZ069-070-092030-
Coastal Collier County FL-Inland Collier County FL-
343 PM EDT Mon Aug 9 2021

...A strong thunderstorm will impact portions of west central Collier
County through 430 PM EDT...

At 343 PM EDT, National Weather Service meteorologists were tracking
a strong thunderstorm capable of producing a funnel cloud over
Vineyards, or near Naples, moving west at 10 mph.

HAZARD...Funnel clouds and winds in excess of 40 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...
Naples, Golden Gate Estates, Naples Park, Vineyards, Golden Gate,
East Naples, North Naples, Pelican Bay and Quail Creek Estate.

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.

Conditions are favorable for the development of weak, brief funnel
clouds. Theis type of funnel cloud is harmless, but on rare occasions
they can briefly touch down, producing wind gusts over 50 mph. If a
funnel cloud is spotted move indoors and report your sighting to the
National Weather Service.

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

&&

LAT...LON 2633 8184 2633 8182 2632 8182 2632 8166
      2636 8166 2636 8164 2620 8162 2612 8171
      2611 8185
TIME...MOT...LOC 1943Z 108DEG 10KT 2622 8177

FUNNEL CLOUD...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Weinman
Special weather statement, Aug 9, 4:35 PM EDT, 4 hours 44 minutes before
Special Weather Statement
National Weather Service Miami FL
435 PM EDT Mon Aug 9 2021

FLZ066-069-070-075-092115-
Coastal Collier County FL-Hendry FL-Inland Collier County FL-
Mainland Monroe FL-
435 PM EDT Mon Aug 9 2021

...Strong thunderstorms will impact portions of southeastern Collier
and northern Mainland Monroe Counties through 515 PM EDT...

At 435 PM EDT, National Weather Service meteorologists were tracking
strong thunderstorms along a line extending from 6 miles northwest of
Big Cypress National Preserve to near Chokoloskee. Movement was
northwest at 15 mph.

HAZARD...Wind gusts of 50 to 55 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Chokoloskee, Everglades City, Plantation Island, Carnestown, Big
Cypress National Preserve, Copeland, Fakahatchee Strand State
Preserve, Jerome and Deep 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.

Funnel clouds occasionally touch down and produce tornadoes or
waterspouts. Move indoors and stay away from windows.

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

&&

LAT...LON 2627 8123 2604 8094 2570 8126 2577 8143
      2579 8144 2579 8146 2584 8158
TIME...MOT...LOC 2035Z 123DEG 12KT 2604 8115 2583 8129

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH

Weinman
Special weather statement, Aug 9, 5:01 PM EDT, 4 hours 18 minutes before
Special Weather Statement
National Weather Service Miami FL
501 PM EDT Mon Aug 9 2021

FLZ069-070-092145-
Coastal Collier County FL-Inland Collier County FL-
501 PM EDT Mon Aug 9 2021

...Strong thunderstorms will impact portions of southwestern Collier
County through 545 PM EDT...

At 501 PM EDT, National Weather Service meteorologists were tracking
strong thunderstorms capable of producing a funnel cloud along a line
extending from near Everglades City to near Copeland to 13 miles
northwest of Big Cypress National Preserve. Movement was west at 15
mph.

HAZARD...Funnel clouds, wind gusts of 50 to 55 mph, and pea size
         hail.

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...
Marco Island, Ave Maria, Golden Gate Estates, Cape Romano, Royal Palm
Hammock, South Blocks Golde, Fakahatchee Strand State Preserve,
Picayune Strand State Forest, Port Of The Island, Intersection I-75
And Everglades Blvd, Goodland, Miles City, Cape Romano Aquatic
Preserve, Jerome and Deep 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 2583 8170 2609 8163 2631 8144 2611 8117
      2598 8135 2581 8142 2587 8159
TIME...MOT...LOC 2101Z 099DEG 12KT 2582 8142 2602 8139 2610 8124

FUNNEL CLOUD...POSSIBLE
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH

Weinman
Special weather statement, Aug 9, 5:35 PM EDT, 3 hours 44 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 2:42 PM EDTSpecial Weather StatementMFLCollier48 min
Aug 10, 3:11 PM EDTSpecial Weather StatementMFLCollier34 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.