Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Melbourne, FL

August 2, 2021Indian River County, Florida

NWS Melbourne, FL issued this special weather statement at Aug 2, 2021, 5:07 PM EDT for Indian River County, Florida. It was in force for 38 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 2, 2021, 5:07 PM EDT (21:07 UTC)
Expired: Aug 2, 2021, 5:45 PM EDT
In force: 38 min
Issued by: NWS Melbourne, FL

County Indian River County, FL

The radar

The Melbourne radar (KMLB), 51 km from the middle of the area, began a volume at 21:06 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 9.1 hours before the alert went out and 91 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: 1347 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 904 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.4

Open this sounding in Storm Lab

The text

As transmitted.

900 
WWUS82 KMLB 022107
SPSMLB

Special Weather Statement
National Weather Service Melbourne FL
507 PM EDT Mon Aug 2 2021
 
FLZ047-054-059-022145-
St. Lucie FL-Southern Brevard County FL-Indian River FL-
507 PM EDT Mon Aug 2 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN ST. LUCIE...INDIAN
RIVER AND SOUTHEASTERN BREVARD COUNTIES UNTIL 545 PM EDT...

At 507 PM EDT, Doppler radar was tracking a strong thunderstorm over
Pointe West, or near Vero Beach South, moving southeast at 10 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Sebastian, Vero Beach, Fellsmere, Indian River Shores and Vero Beach
South.

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.

&&

LAT...LON 2754 8068 2756 8068 2756 8078 2784 8080
      2793 8044 2775 8035 2752 8026
TIME...MOT...LOC 2107Z 328DEG 8KT 2762 8051 

$$

Smith

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 8:32 PM EDT	Special Marine Warning	MLB		58 min
Aug 1, 9:24 PM EDT	Special Weather Statement	MLB	Brevard	66 min
Aug 1, 9:30 PM EDT	Special Marine Warning	MLB		2 hr
Aug 2, 12:40 PM EDT	Special Weather Statement	MLB	Seminole	50 min
Aug 2, 12:44 PM EDT	Special Marine Warning	MLB		61 min
Aug 2, 1:23 PM EDT	Special Weather Statement	MLB	Lake	52 min
Aug 2, 2:07 PM EDT	Special Marine Warning	MLB		53 min
Aug 2, 2:14 PM EDT	Special Weather Statement	MLB	Orange	46 min
Aug 2, 2:22 PM EDT	Special Weather Statement	MLB	Volusia	38 min
Aug 2, 2:24 PM EDT	Areal Flood Advisory	MLB	Volusia	111 min
Aug 2, 2:30 PM EDT	Severe Thunderstorm Warning	MLB	Orange	17 min
Aug 2, 2:53 PM EDT	Areal Flood Advisory	MLB	Orange	112 min
Aug 2, 2:53 PM EDT	Special Weather Statement	MLB	Osceola	52 min
Aug 2, 3:01 PM EDT	Severe Thunderstorm Warning	MLB	Osceola	48 min
Aug 2, 3:02 PM EDT	Special Marine Warning	MLB		88 min
Aug 2, 3:14 PM EDT	Special Marine Warning	MLB		2 hr
Aug 2, 3:14 PM EDT	Severe Thunderstorm Warning	MLB	Brevard, Orange, Osceola	46 min
Aug 2, 3:30 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	45 min
Aug 2, 3:49 PM EDT	Special Weather Statement	MLB	Orange	41 min
Aug 2, 4:44 PM EDT	Special Marine Warning	MLB		3 hr
Aug 2, 5:04 PM EDT	Special Weather Statement	MLB	Martin	56 min
Aug 2, 6:11 PM EDT	Special Weather Statement	MLB	Okeechobee, Saint Lucie	94 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.