Alert archive / Florida / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 49, NWS Miami, FL

October 20, 2019Collier County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Oct 20, 2019, 1:22 AM EDT for Collier County, Florida. It was in force for 83 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
Oct 20, 2019, 1:22 AM EDT (05:22 UTC)
Expired
Oct 20, 2019, 2:45 AM EDT
In force
83 min
Issued by
NWS Miami, FL
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

County Collier County, FL

The radar

The Miami radar (KAMX), 109 km from the middle of the area, began a volume at 05:24 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Miami, FL (KMFL), launched 00:00Z, 5.4 hours before the alert went out and 117 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, Miami, FL at 00:00Z on 2019-10-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1793 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 00:00Z on 2019-10-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.193958Sfc1 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
1793 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
835 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.9

Open this sounding in Storm Lab

The text

As transmitted.

728 
WUUS52 KMFL 200522
SVRMFL
FLC021-200645-
/O.NEW.KMFL.SV.W.0049.191020T0522Z-191020T0645Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Miami FL
122 AM EDT Sun Oct 20 2019

The National Weather Service in Miami has issued a

* Severe Thunderstorm Warning for...
  Southwestern Collier County in southwestern Florida...

* Until 245 AM EDT.

* At 122 AM EDT, severe thunderstorms were located along a line
  extending from 6 miles south of Naples to 21 miles southwest of
  Cape Romano, moving northeast at 20 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Naples, Marco Island, Chokoloskee, Golden Gate Estates and
  Everglades City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Miami. You can also share your report with NWS Miami on
Facebook and Twitter.

&&

LAT...LON 2618 8182 2624 8159 2622 8145 2581 8120
      2580 8127 2580 8126 2579 8127 2579 8126
      2578 8127 2575 8123 2570 8130 2573 8134
      2575 8141 2579 8144 2577 8152 2581 8161
      2580 8162 2583 8171 2610 8182
TIME...MOT...LOC 0522Z 235DEG 19KT 2604 8183 2558 8183 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

Cohen
6 follow-up statements
958 
WWUS52 KMFL 200540
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
140 AM EDT Sun Oct 20 2019

FLC021-200645-
/O.CON.KMFL.SV.W.0049.000000T0000Z-191020T0645Z/
Collier FL-
140 AM EDT Sun Oct 20 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM EDT
FOR SOUTHWESTERN COLLIER COUNTY...

At 140 AM EDT, severe thunderstorms were located along a line
extending from near East Naples to Marco Island Airport to 15 miles
south of Cape Romano, moving northeast at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Naples, Marco Island, Chokoloskee, Golden Gate Estates and Everglades
City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Miami. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2618 8182 2624 8159 2622 8145 2581 8120
      2580 8127 2580 8126 2579 8127 2579 8126
      2578 8127 2575 8123 2570 8130 2573 8134
      2575 8141 2579 8144 2577 8152 2581 8161
      2580 8162 2583 8171 2610 8182
TIME...MOT...LOC 0540Z 228DEG 22KT 2617 8176 2600 8167 2564 8174 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

Cohen
153 
WWUS52 KMFL 200552
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
152 AM EDT Sun Oct 20 2019

FLC021-200645-
/O.CON.KMFL.SV.W.0049.000000T0000Z-191020T0645Z/
Collier FL-
152 AM EDT Sun Oct 20 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM EDT
FOR SOUTHWESTERN COLLIER COUNTY...

At 152 AM EDT, severe thunderstorms were located along a line
extending from Golden Gate to near Royal Palm Hammock to 12 miles
south of Cape Romano, moving northeast at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Naples, Marco Island, Chokoloskee, Golden Gate Estates and Everglades
City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into a
small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Miami. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2618 8182 2624 8159 2622 8145 2581 8120
      2580 8127 2580 8126 2579 8127 2579 8126
      2578 8127 2575 8123 2570 8130 2573 8134
      2575 8141 2579 8144 2577 8152 2581 8161
      2580 8162 2583 8171 2610 8182
TIME...MOT...LOC 0552Z 235DEG 19KT 2621 8170 2604 8161 2568 8168 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

Cohen
560 
WWUS52 KMFL 200602
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
202 AM EDT Sun Oct 20 2019

FLC021-200645-
/O.CON.KMFL.SV.W.0049.000000T0000Z-191020T0645Z/
Collier FL-
202 AM EDT Sun Oct 20 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM EDT
FOR SOUTHWESTERN COLLIER COUNTY...

At 202 AM EDT, severe thunderstorms were located along a line
extending from near Golden Gate Estates to near Royal Palm Hammock to
near Cape Romano, moving northeast at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Marco Island, Chokoloskee, Everglades City, Golden Gate Estates and
Plantation Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into a
small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Miami. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2610 8167 2624 8159 2622 8145 2581 8120
      2580 8127 2580 8126 2578 8127 2579 8126
      2578 8126 2575 8123 2570 8130 2573 8135
      2575 8141 2579 8144 2577 8152 2581 8161
      2580 8162 2583 8171
TIME...MOT...LOC 0602Z 226DEG 18KT 2621 8153 2606 8159 2578 8165 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

Cohen
614 
WWUS52 KMFL 200621
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
221 AM EDT Sun Oct 20 2019

FLC021-200645-
/O.CON.KMFL.SV.W.0049.000000T0000Z-191020T0645Z/
Collier FL-
221 AM EDT Sun Oct 20 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM EDT
FOR SOUTHWESTERN COLLIER COUNTY...

At 221 AM EDT, severe thunderstorms were located along a line
extending from 9 miles southeast of West Toll Gate On Alligator Alley
to near Royal Palm Hammock to 8 miles east of Cape Romano, moving
northeast at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Marco Island, Chokoloskee, Everglades City, Plantation Island and
Carnestown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into a
small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Miami. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2601 8163 2616 8152 2616 8141 2581 8120
      2580 8127 2580 8126 2578 8127 2579 8126
      2578 8126 2575 8123 2570 8130 2573 8134
      2575 8141 2579 8144 2577 8152 2581 8161
      2580 8162 2583 8171
TIME...MOT...LOC 0621Z 224DEG 22KT 2609 8150 2599 8155 2581 8155 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

Cohen
691 
WWUS52 KMFL 200636
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
236 AM EDT Sun Oct 20 2019

FLC021-200645-
/O.CON.KMFL.SV.W.0049.000000T0000Z-191020T0645Z/
Collier FL-
236 AM EDT Sun Oct 20 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM EDT
FOR SOUTH CENTRAL COLLIER COUNTY...

At 236 AM EDT, severe thunderstorms were located along a line
extending from 12 miles southeast of Golden Gate Estates to 6 miles
northeast of Royal Palm Hammock to 6 miles west of Everglades City,
moving northeast at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Chokoloskee, Everglades City, Plantation Island, Carnestown and
Copeland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into a
small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Miami. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2588 8154 2616 8151 2616 8141 2581 8120
      2580 8127 2580 8126 2579 8126 2578 8127
      2578 8126 2575 8123 2570 8130 2573 8135
      2575 8141 2579 8144 2577 8152 2580 8158
TIME...MOT...LOC 0636Z 235DEG 19KT 2613 8144 2603 8149 2585 8149 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

Cohen
340 
WWUS52 KMFL 200642
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
242 AM EDT Sun Oct 20 2019

FLC021-200652-
/O.EXP.KMFL.SV.W.0049.000000T0000Z-191020T0645Z/
Collier FL-
242 AM EDT Sun Oct 20 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL COLLIER COUNTY
WILL EXPIRE AT 245 AM EDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire at 245 PM EDT. 
However gusty winds are still possible with these thunderstorms.

LAT...LON 2588 8154 2616 8151 2616 8141 2581 8120
      2580 8127 2580 8126 2579 8126 2578 8127
      2578 8126 2575 8123 2570 8130 2573 8135
      2575 8141 2579 8144 2577 8152 2580 8158
TIME...MOT...LOC 0642Z 235DEG 19KT 2614 8140 2604 8145 2586 8145 

$$

Cohen

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Oct 19, 8:09 PM EDT, 5 hours 13 minutes earlier.

Area forecast discussion, Oct 19, 8:09 PM EDT, 5 hours 13 minutes before
Area Forecast Discussion
National Weather Service Miami FL
809 PM EDT Sat Oct 19 2019

.UPDATE...

The center of post-tropical Cyclone Nestor was located across
southern Georgia this evening. Robust warm air advection ahead of
this system extended from the Carolinas through the western
Bahamas, with a residual low-level moisture feed extending across
south Florida on southwesterly winds. This is evident via
Satellite derived precipitable water values of 1.9 to 2.3 inches.
While the better thermal advection has departed to our east, the
latest RAP analysis suggests several small pockets of modest
850-700 mb warm advection are yet to rotate through our area
tonight. There is enough turning in the low-level wind field to
support rotating storms this evening, with a few of these storms
approaching severe limits at times. These storms were mainly
confined to northern portions of our area, where model analyses
suggest effective storm relative helicity values of around 200 and
effective shear on the order of 30 kt. While these values are
forecast to decrease with time, there remains a low-end concern
that a few storms overnight may still achieve strong or possibly
low-end severe status. The genesis region for these storms as
depicted by the latest high resolution model guidance is along the
Gulf coast along and ahead of the moisture gradient in
association with a pre-frontal trough. The storms would then
advance E/NE-ward into our area overnight. There remains some
question as to the coverage and intensity of the storms, but the
primary severe hazards (if realized) would be an isolated damaging
wind gust and/or brief tornado. This threat should be ending by
the early morning hours with quieter weather expected on Sunday.
Warm and muggy conditions will continue with temperatures
approaching record warm minimum and maximum values.

&&

.AVIATION(00Z TAFS)...

Prevailing VFR through the TAF period. Small shower chances into
Sunday but too low for mention (outside of APF/PBI). SSE winds
this evening should shift more towards the SSW by tomorrow
morning, possibly shifting back to the SSE by tomorrow afternoon.
Low confidence in the afternoon wind shift, so kept the winds SSW
for now.

&&

.PREV DISCUSSION... (Issued 333 PM EDT Sat Oct 19 2019)

Discussion...
Short Term (Tonight-Sunday): the latest forecast for Post-
tropical cyclone Nestor show the associated stratiform canopy
moving across SoFlo, which had a noticeable hindering effect to
the daytime heating cycle earlier today. Showers and thunderstorm
activity will gradually diminish tonight as the remnants of Nestor
continue to pull NE and away from the Florida peninsula. But
there is still enough dynamic support for any storm that forms to
become strong tonight with model and upper air sounding data
depicting SRH 0-1km around 100, PWATs close to 2 inches, and
plenty of upper lvl divergence for adequate ts-top ventilation.
SPC has portions of SoFlo in a marginal risk for severe weather,
mainly Glades, Hendry and northern Collier counties, where the
stronger convection associated with the frontal boundary draped
across central Florida has been observed on radar. However, the
limiting factor continues to be having an effective lifting
mechanism for convection to reach the better dynamics aloft.
Therefore, will keep the inherited trend of decreasing POPs/Wx
this evening and into the overnight hours with mainly scattered
coverage across the area.

Brief heavy downpours could still bring localized flooding at
times, with also a marginal risk of excessive rainfall continuing
this evening.

As the remnants of Nestor move away from the region on Sunday, the
aforementioned frontal boundary will stall over southern Florida. The
leftover moisture lingering across soFlo will combine with returning
daytime heating for some convection to develop Sunday during the
early afternoon hours. The moist airmass will also contribute to
warmer temps on Sunday with highs climbing back to near 90.

Long Term (Monday-Saturday): General benign weather conditions
will return early next week with high pressure establishing in the
wake of Nestor, and with the frontal boundary over the region
finally lifting and dissipating.

Long range model solutions suggest increasing rain chances
for the middle of the week as the next cold front approaches the
area. This front should stall somewhere over extreme SoFlo or even
into the Keys. Slightly cooler temperatures are possible by
week's end along with shower chances given the front in the
vicinity.

Temperatures remain close to seasonal values or slightly warmer
with afternoon highs in the upper 80s to around 90.

Marine...
A Small Craft Advisory remains in effect for all Gulf waters
through late tonight due to elevated winds and seas associated
with Nestor. Also, Cautionary conditions are possible over the
Atlantic waters and Lake Okeechobee. Showers and thunderstorms,
some potentially strong, will continue to develop at times
tonight, and possibly through Sunday. Seas in the Gulf will be
slow to subside on Sunday as residual swells from Nestor continue
to move toward the coast.

Beach Forecast...
Hazardous beach conditions continue along the Gulf coast as Nestor
moves across the Florida Panhandle tonight. There is a high risk
for Rip Currents through Sunday, with minor coastal flooding
possible through the first half of Sunday due to onshore flow and
increased swells.

&&

.PRELIMINARY POINT TEMPS/POPS...
West Palm Beach  77  89  76  88 /  40  30  20  20
Fort Lauderdale  79  89  78  88 /  20  30  10  20
Miami            78  89  77  88 /  20  20   0  20
Naples           77  88  75  89 /  80  50  10  10

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...High Rip Current Risk through Sunday evening for FLZ069.

AM...None.
GM...Small Craft Advisory until 2 AM EDT Sunday for GMZ656-657-676.

&&

Update/Aviation...SPM
Tonight/Sunday and Marine/Beaches...AR
Sunday Night through Saturday...AR
Hazardous weather outlook, Oct 19, 4:27 PM EDT, 8 hours 55 minutes before
Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
427 PM EDT Sat Oct 19 2019

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
200830-
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-
427 PM EDT Sat Oct 19 2019

...Strong Thunderstorms Possible This Evening...
...Coastal Flood and High Risk of Rip Currents for Gulf Coast...

This hazardous weather outlook is for South Florida.

.DAY ONE...TONIGHT

Rip currents: A high risk of Rip Currents will exist along the Gulf
beaches.

Thunderstorms: Lightning, locally heavy rainfall, and gusty winds
are primary hazards with thunderstorms.

Tornadoes: Stronger thunderstorms will be capable of producing
funnel clouds or isolated weak tornadoes.

Waterspouts: Showers and thunderstorms could produce several
waterspouts tonight over the coastal and lake waters.

Wind: Stronger thunderstorms could produce wind gusts capable of
causing isolated wind damage. Sustained winds of 20 to 25 knots over
the Gulf of Mexico will cause hazardous marine conditions. Reference
the Small Craft Advisory for the latest marine details.

Flooding: Training showers and thunderstorms could cause excessive
rainfall capable of producing minor flooding on roads and low-lying,
poorly drained areas.

Visibility:  There could be some patchy fog across Southwest Florida
and inland South Florida tonight, particularly in areas that receive
rainfall today.

Waves: 7 to 10 foot seas in the Gulf of Mexico through early Sunday
morning. Reference the Small Craft Advisory for the latest details.

Coastal Flooding: Surf heights along the Gulf beaches could reach
around 5 feet today. Sensitive and low-lying locations along the
Gulf coast may experience minor flooding.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

Thunderstorms are possible each day through Wednesday.

The risk of Rip Currents will become elevated along the Gulf and
some Atlantic beaches this weekend into possibly early next week.

.SPOTTER INFORMATION STATEMENT...

Widespread spotter activation is not anticipated, however individual
spotters are encouraged to report high wind, funnel clouds,
waterspouts, 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, Oct 20, 12:03 AM EDT, 1 hour 19 minutes before
Special Weather Statement
National Weather Service Miami FL
1203 AM EDT Sun Oct 20 2019

FLZ069-070-200445-
Coastal Collier County FL-Inland Collier County FL-
1203 AM EDT Sun Oct 20 2019

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL COLLIER COUNTY UNTIL
1245 AM EDT...

* At 1203 AM EDT, National Weather Service meteorologists were
  tracking strong thunderstorms along a line extending from 12 miles
  west of Marco Island to near Naples Manor. Movement was northeast
  at 25 mph.

* Winds in excess of 45 mph possible with these storms.

* Locations impacted include...
  Naples, Marco Island, Golden Gate Estates, Belle Meade, Marco
  Island Airport, Naples Manor, Golden Gate, East Naples, Lely
  Resort, West Toll Gate On Alligator Alley, Vineyards, North Naples,
  Lely, Rookery Bay Aquatic Preserve, Intersection I-75 And
  Everglades Blvd and Fiddlers Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, 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.

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 2629 8171 2620 8149 2590 8173 2608 8184
TIME...MOT...LOC 0403Z 211DEG 22KT 2591 8192 2605 8177

Cohen
Special weather statement, Oct 20, 12:13 AM EDT, 1 hour 9 minutes before
Special Weather Statement
National Weather Service Miami FL
1213 AM EDT Sun Oct 20 2019

FLZ066-070-200500-
Hendry FL-Inland Collier County FL-
1213 AM EDT Sun Oct 20 2019

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL COLLIER AND
SOUTHEASTERN HENDRY COUNTIES UNTIL 100 AM EDT...

* At 1213 AM EDT, National Weather Service meteorologists were
  tracking strong thunderstorms along a line extending from 10 miles
  south of Hendry Correctional to near Big Cypress Seminole
  Reservation. Movement was northeast at 15 mph.

* Winds in excess of 45 mph possible with these storms.

* Locations impacted include...
  Big Cypress Seminole Reservation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, 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.

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 2624 8128 2637 8098 2621 8090 2614 8129
TIME...MOT...LOC 0413Z 224DEG 15KT 2616 8126 2626 8098

Cohen
Special weather statement, Oct 20, 12:40 AM EDT, 42 minutes before
Special Weather Statement
National Weather Service Miami FL
1240 AM EDT Sun Oct 20 2019

FLZ067-200530-
Inland Palm Beach County FL-
1240 AM EDT Sun Oct 20 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN PALM BEACH COUNTY
UNTIL 130 AM EDT...

* At 1240 AM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm over Holey Land Wildlife Refuge, or
  15 miles south of South Bay, moving northeast at 25 mph.

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

* Locations impacted include...
  Belle Glade, South Bay, Okeelanta, Holey Land Wildlife Refuge,
  Belle Glade Camp and Loxahatchee NWR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 2634 8072 2649 8085 2682 8058 2649 8026
TIME...MOT...LOC 0440Z 234DEG 22KT 2644 8071

SPM
Special weather statement, Oct 20, 12:46 AM EDT, 36 minutes before
Special Weather Statement
National Weather Service Miami FL
1246 AM EDT Sun Oct 20 2019

FLZ069-070-200530-
Coastal Collier County FL-Inland Collier County FL-
1246 AM EDT Sun Oct 20 2019

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL COLLIER COUNTY UNTIL
130 AM EDT...

* At 1246 AM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm near Belle Meade, or near Marco
  Island, moving northeast at 25 mph.

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

* Locations impacted include...
  Marco Island, Golden Gate Estates, Belle Meade, Marco Island
  Airport, Naples Manor, Golden Gate, Lely Resort, West Toll Gate On
  Alligator Alley, East Naples, Lely, South Blocks Golde, Rookery Bay
  Aquatic Preserve, Picayune Strand State Forest and Fiddlers Creek.

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.

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 2595 8178 2605 8180 2622 8170 2608 8145
TIME...MOT...LOC 0446Z 238DEG 21KT 2602 8174

Cohen
Special weather statement, Oct 20, 12:50 AM EDT, 32 minutes before
Special Weather Statement
National Weather Service Miami FL
1250 AM EDT Sun Oct 20 2019

FLZ063-066-067-070-200530-
Hendry FL-Inland Collier County FL-Inland Palm Beach County FL-
Glades FL-
1250 AM EDT Sun Oct 20 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN HENDRY AND SOUTHERN
GLADES COUNTIES UNTIL 130 AM EDT...

* At 1250 AM EDT, National Weather Service meteorologists were
  tracking strong thunderstorms along a line extending from 8 miles
  east of Felda to near Clewiston. Movement was northeast at 40 mph.

* Winds in excess of 45 mph and funnel clouds possible with these
  storms.

* Locations impacted include...
  Clewiston, Montura, Devils Garden and Harlem.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, 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.

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 2675 8088 2670 8089 2649 8126 2654 8132
      2683 8099 2681 8094 2678 8089
TIME...MOT...LOC 0450Z 232DEG 37KT 2654 8129 2675 8095

Cohen
Special weather statement, Oct 20, 1:16 AM EDT, 6 minutes before
Special Weather Statement
National Weather Service Miami FL
116 AM EDT Sun Oct 20 2019

FLZ067-068-168-200600-
Coastal Palm Beach County FL-Inland Palm Beach County FL-
Metro Palm Beach County FL-
116 AM EDT Sun Oct 20 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN PALM BEACH COUNTY
UNTIL 200 AM EDT...

* At 116 AM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm near Lion Country Safari Park, or 11
  miles northwest of Wellington, moving northeast at 30 mph.

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

* Locations impacted include...
  West Palm Beach, Jupiter, Palm Beach Gardens, Tequesta, Juno Beach,
  Royal Palm Beach, North Palm Beach, North County Airport, Juno
  Ridge, Lion Country Safari Park, The Acreage, Loxahatchee Groves,
  Fau North Campus, Philo Farms, Limestone Creek, Caloosa and Jupiter
  Farms.

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 2686 8003 2663 8040 2679 8055 2696 8034
      2696 8014 2697 8014 2697 8003
TIME...MOT...LOC 0516Z 231DEG 28KT 2676 8041

SPM

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 19, 11:31 PM EDTSpecial Weather StatementMFLHendry44 min
Oct 19, 11:43 PM EDTSevere Thunderstorm WarningMFLBroward, Hendry, Palm Beach62 min
Oct 19, 11:46 PM EDTSpecial Weather StatementMFLPalm Beach44 min
Oct 19, 11:46 PM EDTTornado WarningMFLBroward, Hendry, Palm Beach44 min
Oct 19, 11:53 PM EDTSpecial Marine WarningMFL2 hr
Oct 20, 12:03 AM EDTSpecial Weather StatementMFLCollier42 min
Oct 20, 12:13 AM EDTSpecial Weather StatementMFLHendry47 min
Oct 20, 12:13 AM EDTSevere Thunderstorm WarningMFLPalm Beach47 min
Oct 20, 12:40 AM EDTSpecial Weather StatementMFLPalm Beach50 min
Oct 20, 12:46 AM EDTSpecial Weather StatementMFLCollier44 min
Oct 20, 12:50 AM EDTSpecial Weather StatementMFLHendry40 min
Oct 20, 1:16 AM EDTSpecial Weather StatementMFLPalm Beach44 min
Oct 20, 1:59 AM EDTSpecial Marine WarningMFL2 hr
Oct 20, 2:18 AM EDTSpecial Weather StatementMFLCollier, Hendry72 min
Oct 20, 2:43 AM EDTSpecial Marine WarningMFL32 min
Oct 20, 2:46 AM EDTSpecial Weather StatementMFLCollier44 min
Oct 20, 3:22 AM EDTSpecial Weather StatementMFLMonroe38 min
Oct 20, 4:00 AM EDTSpecial Weather StatementMFLBroward60 min
Oct 20, 4:51 AM EDTSpecial Weather StatementMFLPalm Beach39 min
Oct 20, 5:28 AM EDTSpecial Weather StatementMFLPalm Beach62 min
Oct 20, 6:22 AM EDTSpecial Weather StatementMFLCollier38 min
Oct 20, 6:57 AM EDTSpecial Weather StatementMFLCollier48 min
Oct 20, 7:23 AM EDTSpecial Marine WarningMFL37 min
Oct 20, 7:39 AM EDTSpecial Weather StatementMFLCollier, Hendry66 min
Oct 20, 8:46 AM EDTSpecial Weather StatementMFLCollier, Hendry44 min
Oct 20, 10:32 AM EDTSpecial Weather StatementMFLPalm Beach43 min
Oct 20, 11:46 AM EDTSpecial Weather StatementMFLCollier44 min
Oct 20, 1:14 PM EDTSpecial Weather StatementMFLHendry46 min

Nearby

Severe Thunderstorm Warnings in Florida, 2019Every severe thunderstorm warning in 2019

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.