Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Miami, FL

October 28, 2021Collier County, Florida

NWS Miami, FL issued this special weather statement at Oct 28, 2021, 8:10 PM EDT for Collier County, Florida. It was in force for 50 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 28, 2021, 8:10 PM EDT (00:10 UTC)
Expired
Oct 28, 2021, 9:00 PM EDT
In force
50 min
Issued by
NWS Miami, FL
Hail
0.00 in
Wind
40

County Collier County, FL

The radar

The Miami radar (KAMX), 144 km from the middle of the area, began a volume at 00:11 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

Miami, FL (KMFL), launched 00:00Z, 0.2 hours before the alert went out and 146 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 2021-10-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1336 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, Miami, FL at 00:00Z on 2021-10-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 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
1336 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
891 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.2

Open this sounding in Storm Lab

The text

As transmitted.

290 
WWUS82 KMFL 290010
SPSMFL

Special Weather Statement
National Weather Service Miami FL
810 PM EDT Thu Oct 28 2021
 
FLZ069-070-290100-
Coastal Collier County FL-Inland Collier County FL-
810 PM EDT Thu Oct 28 2021

...A strong thunderstorm will impact portions of northwestern Collier
County through 900 PM EDT...

At 810 PM EDT, National Weather Service meteorologists were tracking
a strong thunderstorm capable of producing a funnel cloud over East
Naples, or near Naples, moving northeast at 30 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, Belle Meade, Orangetree, Naples Manor,
Golden Gate, East Naples, Lely Resort, West Toll Gate On Alligator
Alley, Vineyards, North Naples, Naples Park, Pelican Bay, Lely,
Rookery Bay Aquatic Preserve, South Blocks Golde, Picayune Strand
State Forest, Intersection I-75 And Everglades Blvd and Fiddlers
Creek.

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 2632 8168 2632 8166 2633 8166 2637 8157
      2606 8142 2600 8177 2614 8182 2625 8183
TIME...MOT...LOC 0010Z 238DEG 27KT 2609 8179 

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

$$

AR

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 28, 8:06 PM EDTSpecial Weather StatementMFLHendry39 min
Oct 28, 8:36 PM EDTSevere Thunderstorm WarningMFLCollier39 min
Oct 28, 8:42 PM EDTSpecial Marine WarningMFL33 min
Oct 28, 8:48 PM EDTSpecial Weather StatementMFLPalm Beach27 min
Oct 28, 8:52 PM EDTSpecial Marine WarningMFL23 min
Oct 28, 8:53 PM EDTSpecial Weather StatementMFLCollier, Hendry67 min
Oct 28, 9:16 PM EDTSpecial Weather StatementMFLPalm Beach29 min
Oct 28, 9:42 PM EDTSpecial Marine WarningMFL63 min
Oct 28, 10:32 PM EDTSpecial Marine WarningMFL58 min
Oct 28, 10:45 PM EDTSpecial Marine WarningMFL60 min
Oct 28, 11:02 PM EDTSpecial Weather StatementMFLBroward28 min
Oct 29, 12:00 AM EDTSpecial Weather StatementMFLMiami-Dade45 min
Oct 29, 12:17 AM EDTSpecial Weather StatementMFLBroward43 min
Oct 29, 12:25 AM EDTSpecial Marine WarningMFL65 min
Oct 29, 1:01 AM EDTSpecial Marine WarningMFL59 min
Oct 29, 2:31 AM EDTSpecial Marine WarningMFL44 min
Oct 29, 3:39 AM EDTHigh Surf AdvisoryMFLCollier40 hr
Oct 29, 5:42 AM EDTSpecial Marine WarningMFL63 min
Oct 29, 3:36 PM EDTCoastal Flood StatementMFLCollier20 hr

Nearby

Special Weather Statements in Florida, 2021Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.