Alert archive / Florida / Special Weather Statements in 2019

Special Weather Statement, NWS Miami, FL

October 19, 2019Collier County, Florida

NWS Miami, FL issued this special weather statement at Oct 19, 2019, 3:41 AM EDT for Collier County, Florida. It was in force for 34 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 19, 2019, 3:41 AM EDT (07:41 UTC)
Expired
Oct 19, 2019, 4:15 AM EDT
In force
34 min
Issued by
NWS Miami, FL

County Collier County, FL

The radar

The Miami radar (KAMX), 157 km from the middle of the area, began a volume at 07:45 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

Tampa Bay, FL (KTBW), launched 00:00Z, 7.7 hours before the alert went out and 168 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, Tampa Bay, FL at 00:00Z on 2019-10-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 491 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, Tampa Bay, FL at 00:00Z on 2019-10-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 310 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
491 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
808 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
310 m²/s²
0-3 km storm-relative helicity
432 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.4

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 Oct 19, 3:37 AM EDT, 4 minutes earlier.

Area forecast discussion, Oct 19, 3:37 AM EDT, 4 minutes before
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Hazardous weather outlook, Oct 18, 4:25 PM EDT, 11 hours 16 minutes before
Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
425 PM EDT Fri Oct 18 2019

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
190830-
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-
425 PM EDT Fri Oct 18 2019

...Strong thunderstorms possible through the overnight...
...Marine conditions will deteriorate in Gulf due to Nestor...

This hazardous weather outlook is for South Florida.

.DAY ONE...TONIGHT

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

Tornadoes: Stronger thunderstorms will be capable of producing funnel
clouds or an isolated weak tornado, particularly later tonight over
portions of Southwest Florida and the Lake Okeechobee region.

Waterspouts: Showers and thunderstorms could produce waterspouts,
mainly over the Gulf and Lake Okeechobee waters.

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

Flooding: Training showers and thunderstorms could cause locally
heavy rainfall capable of producing the ponding of water on roads and
low-lying poorly drained areas, mainly from the Alligator Alley and
Interstate 595 corridor northward.

Coastal Flooding: There could be some coastal flooding along the
West coast of Florida due to a west southwesterly swell in the Gulf
due to Tropical Storm Nestor.

Visibility: There could be some patchy fog across Southwest Florida
and inland South Florida this morning and again tonight. Visibility
could drop to a quarter of a mile in some spots.

Waves: Seas will build to 7 to 10 feet in the Gulf of Mexico late
tonight into Saturday. Reference the Small Craft Advisory for the
latest details.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Thunderstorms are possible Saturday through Monday and Wednesday
through Thursday. Strong thunderstorms are possible Saturday,
particularly around Southwest Florida and the Lake Okeechobee
region.

20 to 25 knot winds and 7 to 10 foot seas in the Gulf of Mexico will
linger through Saturday, creating hazardous marine conditions.

The risk of Rip Currents will become elevated along the Gulf and
some Atlantic beaches this weekend. Surf heights along the Gulf
beaches could reach around 5 feet on Saturday.

.SPOTTER INFORMATION STATEMENT...

Widespread spotter activation is not anticipated, however individual
spotters are encouraged to report high wind, waterspouts, funnel
clouds, 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 19, 2:11 AM EDT, 1 hour 30 minutes before
Special Weather Statement
National Weather Service Miami FL
211 AM EDT Sat Oct 19 2019

FLZ069-070-190700-
Coastal Collier County FL-Inland Collier County FL-
211 AM EDT Sat Oct 19 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN COLLIER COUNTY UNTIL
300 AM EDT...

* At 211 AM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm near Marco Island, moving north at
  35 mph.

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

* Locations impacted include...
  Naples, Marco Island, Golden Gate Estates, Cape Romano, 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, Lely and Rookery Bay Aquatic Preserve.

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 2633 8184 2633 8182 2632 8182 2632 8166
      2635 8166 2635 8148 2590 8154 2582 8170
      2583 8176 2599 8184
TIME...MOT...LOC 0611Z 191DEG 29KT 2592 8179

Cohen
Special weather statement, Oct 19, 2:12 AM EDT, 1 hour 29 minutes before
Special Weather Statement
National Weather Service Miami FL
212 AM EDT Sat Oct 19 2019

FLZ075-190700-
Mainland Monroe FL-
212 AM EDT Sat Oct 19 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN MAINLAND MONROE COUNTY
UNTIL 300 AM EDT...

* At 212 AM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm near Northwest Cape Sable, moving
  north at 30 mph.

* Wind gusts up to 50 mph and funnel clouds possible with this storm.

* Locations impacted include...
  Northwest Cape Sable and Middle Cape Sable.

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 2512 8117 2521 8125 2532 8123 2537 8120
      2547 8128 2550 8129 2549 8100 2512 8109
TIME...MOT...LOC 0612Z 191DEG 28KT 2517 8125

Cohen
Special weather statement, Oct 19, 3:20 AM EDT, 21 minutes before
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Special weather statement, Oct 19, 3:41 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 8:21 PM EDTSpecial Weather StatementMFLGlades54 min
Oct 19, 2:07 AM EDTSpecial Marine WarningMFL113 min
Oct 19, 2:08 AM EDTSpecial Marine WarningMFL2 hr
Oct 19, 2:11 AM EDTSpecial Weather StatementMFLCollier49 min
Oct 19, 2:12 AM EDTSpecial Weather StatementMFLMonroe48 min
Oct 19, 3:20 AM EDTSpecial Weather StatementMFLCollier70 min
Oct 19, 3:39 AM EDTSpecial Marine WarningMFL2 hr
Oct 19, 3:58 AM EDTSpecial Weather StatementMFLCollier32 min
Oct 19, 5:11 AM EDTSpecial Weather StatementMFLCollier49 min
Oct 19, 5:49 AM EDTSpecial Weather StatementMFLCollier41 min
Oct 19, 7:01 AM EDTSpecial Weather StatementMFLCollier44 min
Oct 19, 11:01 AM EDTSpecial Weather StatementMFLGlades44 min
Oct 19, 11:40 AM EDTSpecial Weather StatementMFLGlades50 min
Oct 19, 12:01 PM EDTSevere Thunderstorm WarningMFLGlades, Hendry29 min
Oct 19, 12:03 PM EDTSpecial Marine WarningMFL42 min
Oct 19, 12:36 PM EDTSpecial Weather StatementMFLGlades39 min
Oct 19, 2:29 PM EDTSpecial Weather StatementMFLCollier46 min
Oct 19, 3:28 PM EDTSpecial Marine WarningMFL32 min
Oct 19, 3:31 PM EDTSpecial Weather StatementMFLHendry29 min
Oct 19, 3:39 PM EDTSpecial Marine WarningMFL51 min
Oct 19, 3:59 PM EDTSpecial Weather StatementMFLPalm Beach46 min
Oct 19, 4:01 PM EDTSpecial Weather StatementMFLHendry44 min
Oct 19, 4:02 PM EDTSpecial Weather StatementMFLPalm Beach43 min
Oct 19, 4:10 PM EDTSpecial Weather StatementMFLCollier50 min
Oct 19, 4:21 PM EDTSevere Thunderstorm WarningMFLHendry37 min
Oct 19, 4:28 PM EDTSpecial Marine WarningMFL62 min
Oct 19, 4:37 PM EDTSevere Thunderstorm WarningMFLPalm Beach53 min
Oct 19, 5:27 PM EDTSpecial Weather StatementMFLMartin48 min
Oct 19, 5:42 PM EDTSevere Thunderstorm WarningMFLPalm Beach14 min
Oct 19, 6:24 PM EDTSpecial Weather StatementMFLCollier, Hendry66 min
Oct 19, 7:22 PM EDTSpecial Weather StatementMFLHendry38 min

Nearby

Special Weather Statements in Florida, 2019Every special weather statement 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.