Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Miami, FL

August 3, 2021Miami-Dade County, Florida

NWS Miami, FL issued this special weather statement at Aug 3, 2021, 9:29 PM EDT for Miami-Dade County, Florida. It was in force for 61 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 3, 2021, 9:29 PM EDT (01:29 UTC)
Expired
Aug 3, 2021, 10:30 PM EDT
In force
61 min
Issued by
NWS Miami, FL

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 43 km from the middle of the area, began a volume at 01:28 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

Key West, FL (KEYW), launched 00:00Z, 1.5 hours before the alert went out and 140 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, Key West, FL at 00:00Z on 2021-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2883 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, Key West, FL at 00:00Z on 2021-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.1939Sfc1 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
2883 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
893 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

294 
WWUS82 KMFL 040129
SPSMFL

Special Weather Statement
National Weather Service Miami FL
929 PM EDT Tue Aug 3 2021
 
FLZ073-075-173-174-040230-
Mainland Monroe FL-Far South Miami-Dade County FL-Inland Miami-
Dade County FL-Coastal Miami Dade County FL-
929 PM EDT Tue Aug 3 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN MIAMI-DADE COUNTY UNTIL
1030 PM EDT...

* At 929 PM EDT, National Weather Service meteorologists were
  tracking strong thunderstorms along a line extending from Homestead
  to 8 miles east of Flamingo. Movement was southeast at 10 mph.

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

* Locations impacted include...
  Homestead, Turkey Point, Homestead Miami Speedway, Florida City,
  Royal Palm Ranger, Homestead Bayfront Park, Ocean Reef and Leisure
  City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 2516 8065 2516 8092 2519 8078 2520 8080
      2521 8085 2549 8048 2542 8013 2532 8025
      2534 8025 2529 8039 2530 8039 2520 8050
      2522 8056 2524 8054 2523 8059 2514 8066
      2514 8067
TIME...MOT...LOC 0129Z 298DEG 8KT 2545 8046 2517 8080 

$$

BAXTER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 8:00 PM EDTSpecial Weather StatementMFLMiami-Dade60 min
Aug 3, 8:11 PM EDTSpecial Weather StatementMFLMiami-Dade49 min
Aug 3, 8:16 PM EDTAreal Flood AdvisoryMFLMiami-Dade119 min
Aug 3, 8:27 PM EDTAreal Flood AdvisoryMFLMiami-Dade2 hr
Aug 4, 7:49 AM EDTAreal Flood AdvisoryMFLCollier2 hr
Aug 4, 8:44 AM EDTAreal Flood AdvisoryMFLCollier2 hr
Aug 4, 11:15 AM EDTAreal Flood AdvisoryMFLCollier3 hr
Aug 4, 11:53 AM EDTSpecial Marine WarningMFL67 min
Aug 4, 12:02 PM EDTSpecial Weather StatementMFLBroward43 min
Aug 4, 12:40 PM EDTSpecial Weather StatementMFLBroward35 min
Aug 4, 12:58 PM EDTSpecial Marine WarningMFL62 min
Aug 4, 1:11 PM EDTAreal Flood AdvisoryMFLBroward, Miami-Dade2 hr
Aug 4, 1:11 PM EDTSpecial Weather StatementMFLBroward64 min
Aug 4, 1:25 PM EDTAreal Flood AdvisoryMFLBroward, Palm Beach2 hr
Aug 4, 3:18 PM EDTAreal Flood AdvisoryMFLMiami-Dade117 min

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.