Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Melbourne, FL

June 12, 2021Orange County, Florida

NWS Melbourne, FL issued this special weather statement at Jun 12, 2021, 4:16 PM EDT for Orange County, Florida. It was in force for 29 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 12, 2021, 4:16 PM EDT (20:16 UTC)
Expired: Jun 12, 2021, 4:45 PM EDT
In force: 29 min
Issued by: NWS Melbourne, FL

County Orange County, FL

The radar

The Melbourne radar (KMLB), 52 km from the middle of the area, began a volume at 20:18 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.

What was reported inside it

Time	Report	Where	Remark
Jun 12, 4:35 PM EDT	HAIL 0.7	5 E Avalon Park, FL	TRAINED SPOTTER REPORTED HALF INCH HAIL ALONG BABBIT AVENUE IN WEDGEFIELD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 8.3 hours before the alert went out and 47 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: 641 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 976 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

987 
WWUS82 KMLB 122016
SPSMLB

Special Weather Statement
National Weather Service Melbourne FL
416 PM EDT Sat Jun 12 2021
 
FLZ045-053-122045-
Osceola FL-Orange FL-
416 PM EDT Sat Jun 12 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN ORANGE AND
NORTHEASTERN OSCEOLA COUNTIES UNTIL 445 PM EDT...

At 415 PM EDT, Doppler radar was tracking numerous strong 
thunderstorms from Union Park to Saint Cloud, moving east at 15 mph. 
Additional storms are expected to develop east of Interstate 4 in 
Orange and Osceola Counties, east towards the Saint Johns River.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Orlando, Kissimmee, Saint Cloud, Winter Park and Wedgefield. 

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.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 2861 8139 2861 8099 2859 8094 2858 8095
      2856 8093 2853 8094 2853 8092 2851 8091
      2851 8089 2847 8087 2847 8090 2845 8089
      2843 8090 2841 8088 2839 8089 2834 8086
      2821 8086 2821 8140
TIME...MOT...LOC 2015Z 270DEG 8KT 2853 8125 

$$

Rodriguez

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 8:05 PM EDT	Special Weather Statement	MLB	Okeechobee	40 min
Jun 11, 8:28 PM EDT	Special Weather Statement	MLB	Brevard	32 min
Jun 12, 3:36 PM EDT	Special Weather Statement	MLB	Osceola	39 min
Jun 12, 3:42 PM EDT	Special Weather Statement	MLB	Orange	33 min
Jun 12, 4:11 PM EDT	Special Weather Statement	MLB	Brevard	64 min
Jun 12, 4:15 PM EDT	Special Marine Warning	MLB		60 min
Jun 12, 4:30 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	30 min
Jun 12, 4:58 PM EDT	Special Marine Warning	MLB		62 min
Jun 12, 5:16 PM EDT	Special Weather Statement	MLB	Brevard	29 min
Jun 12, 5:19 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	26 min
Jun 12, 5:57 PM EDT	Special Marine Warning	MLB		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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.