Alert archive / Florida / Special Weather Statements in 2023

Special Weather Statement, NWS Miami, FL

June 21, 2023Collier County, Florida

NWS Miami, FL issued this special weather statement at Jun 21, 2023, 11:10 PM EDT for Collier County, Florida. 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 outline as issued.

The facts

Issued: Jun 21, 2023, 11:10 PM EDT (03:10 UTC)
Expired: Jun 21, 2023, 11:45 PM EDT
In force: 35 min
Issued by: NWS Miami, FL
Hail: 0.25 in
Wind: 40

County Collier County, FL

The radar

The Miami radar (KAMX), 123 km from the middle of the area, began a volume at 03:12 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, 3.2 hours before the alert went out and 127 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1096 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 1345 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

769 
WWUS82 KMFL 220310
SPSMFL

Special Weather Statement
National Weather Service Miami FL
1110 PM EDT Wed Jun 21 2023
 
FLZ070-220345-
Inland Collier County FL-
1110 PM EDT Wed Jun 21 2023

...A strong thunderstorm will impact portions of central Collier
County through 1145 PM EDT...

At 1110 PM EDT, National Weather Service meteorologists were tracking
a strong thunderstorm capable of producing a funnel cloud near Royal
Palm Hammock, or 10 miles south of Golden Gate Estates, moving east
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...
Fakahatchee Strand State Preserve, Picayune Strand State Forest,
South Blocks Golde and Intersection I-75 And Everglades Blvd.

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 2601 8160 2613 8162 2620 8144 2600 8141
TIME...MOT...LOC 0310Z 260DEG 10KT 2608 8155 

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

$$

Fisher

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 8:23 PM EDT	Special Weather Statement	MFL	Palm Beach	37 min
Jun 21, 8:55 PM EDT	Special Weather Statement	MFL	Collier	50 min
Jun 22, 7:14 AM EDT	Special Marine Warning	MFL		61 min
Jun 22, 9:37 AM EDT	Special Marine Warning	MFL		53 min
Jun 22, 10:13 AM EDT	Special Weather Statement	MFL	Monroe	32 min
Jun 22, 11:43 AM EDT	Special Weather Statement	MFL	Collier	32 min
Jun 22, 12:11 PM EDT	Special Weather Statement	MFL	Collier	49 min
Jun 22, 12:55 PM EDT	Special Weather Statement	MFL	Collier	35 min
Jun 22, 1:00 PM EDT	Special Weather Statement	MFL	Broward	30 min
Jun 22, 1:18 PM EDT	Special Weather Statement	MFL	Hendry	27 min
Jun 22, 1:24 PM EDT	Special Weather Statement	MFL	Collier	36 min
Jun 22, 1:30 PM EDT	Special Weather Statement	MFL	Collier	30 min
Jun 22, 1:54 PM EDT	Special Weather Statement	MFL	Broward	36 min
Jun 22, 2:06 PM EDT	Special Weather Statement	MFL	Glades	39 min
Jun 22, 2:27 PM EDT	Special Marine Warning	MFL		33 min
Jun 22, 2:33 PM EDT	Special Weather Statement	MFL	Glades	42 min
Jun 22, 2:41 PM EDT	Severe Thunderstorm Warning	MFL	Glades	34 min
Jun 22, 3:16 PM EDT	Special Weather Statement	MFL	Okeechobee	14 min

Nearby

Special Weather Statements in Florida, 2023 Every special weather statement in 2023

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.