Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Miami, FL

August 9, 2021Broward County, Florida

NWS Miami, FL issued this special weather statement at Aug 9, 2021, 5:35 PM EDT for Broward County, Florida. It was in force for 40 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: Aug 9, 2021, 5:35 PM EDT (21:35 UTC)
Expired: Aug 9, 2021, 6:15 PM EDT
In force: 40 min
Issued by: NWS Miami, FL
Hail: 0.25 in
Wind: 40

County Broward County, FL

The radar

The Miami radar (KAMX), 73 km from the middle of the area, began a volume at 21:35 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 12:00Z, 9.6 hours before the alert went out and 66 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: 2002 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 935 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 7 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

335 
WWUS82 KMFL 092135
SPSMFL

Special Weather Statement
National Weather Service Miami FL
535 PM EDT Mon Aug 9 2021
 
FLZ066-070-071-073-092215-
Inland Broward County FL-Hendry FL-Inland Collier County FL-
Inland Miami-Dade County FL-
535 PM EDT Mon Aug 9 2021

...Strong thunderstorms will impact portions of southeastern Collier,
northern Miami-Dade, southeastern Hendry and Broward Counties through
615 PM EDT...

At 535 PM EDT, National Weather Service meteorologists were tracking
strong thunderstorms along a line extending from near Miccosukee
Service Plaza to 6 miles south of Miccosukee Indian Reservation.
Movement was west at 10 mph.

HAZARD...Winds in excess of 40 mph and pea size 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...
Miccosukee Indian Reservation, Miccosukee Service Plaza, Big Cypress
National Preserve and West Broward Rec. Area On Alligator Alley.

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 2630 8075 2628 8109 2587 8103 2591 8063
TIME...MOT...LOC 2135Z 110DEG 7KT 2611 8079 2607 8088 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

$$

Weinman

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 8:21 PM EDT	Special Marine Warning	MFL		54 min
Aug 8, 9:03 PM EDT	Special Marine Warning	MFL		57 min
Aug 8, 9:18 PM EDT	Special Marine Warning	MFL		27 min
Aug 8, 9:29 PM EDT	Special Weather Statement	MFL	Hendry	31 min
Aug 8, 9:40 PM EDT	Special Marine Warning	MFL		35 min
Aug 9, 2:53 PM EDT	Special Marine Warning	MFL		67 min
Aug 9, 3:15 PM EDT	Areal Flood Advisory	MFL	Collier	2 hr
Aug 9, 3:24 PM EDT	Special Marine Warning	MFL		66 min
Aug 9, 3:33 PM EDT	Special Weather Statement	MFL	Hendry	42 min
Aug 9, 3:41 PM EDT	Areal Flood Advisory	MFL	Collier	109 min
Aug 9, 3:43 PM EDT	Special Weather Statement	MFL	Collier	47 min
Aug 9, 4:35 PM EDT	Special Weather Statement	MFL	Collier	40 min
Aug 9, 4:37 PM EDT	Special Marine Warning	MFL		53 min
Aug 9, 5:01 PM EDT	Special Weather Statement	MFL	Collier	44 min
Aug 9, 5:26 PM EDT	Special Marine Warning	MFL		34 min
Aug 9, 6:42 PM EDT	Special Marine Warning	MFL		63 min

Nearby

Special Weather Statements in Florida, 2021 Every 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.