Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 16, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jun 12, 2021, 4:30 PM EDT for Brevard County, Florida. It was in force for 30 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 12, 2021, 4:30 PM EDT (20:30 UTC)
- Expired
- Jun 12, 2021, 5:00 PM EDT
- In force
- 30 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Brevard County, FL
The radar
The Melbourne radar (KMLB), 1 km from the middle of the area, began a volume at 20:33 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, 8.5 hours before the alert went out and 43 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.
- 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
The text
As transmitted.
848 WUUS52 KMLB 122030 SVRMLB FLC009-122100- /O.NEW.KMLB.SV.W.0016.210612T2030Z-210612T2100Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Melbourne FL 430 PM EDT Sat Jun 12 2021 The National Weather Service in Melbourne has issued a * Severe Thunderstorm Warning for... East central Brevard County in east central Florida... * Until 500 PM EDT. * At 430 PM EDT, a severe thunderstorm was located over West Melbourne, or over Melbourne, moving east at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Melbourne, Satellite Beach, Indialantic, West Melbourne and Indian Harbour Beach. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 2806 8072 2814 8071 2820 8057 2807 8054 TIME...MOT...LOC 2030Z 251DEG 18KT 2811 8069 HAIL...<.75IN WIND...60MPH $$ KN
1 follow-up statement
130
WWUS52 KMLB 122052
SVSMLB
Severe Weather Statement
National Weather Service Melbourne FL
452 PM EDT Sat Jun 12 2021
FLC009-122101-
/O.EXP.KMLB.SV.W.0016.000000T0000Z-210612T2100Z/
Brevard FL-
452 PM EDT Sat Jun 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BREVARD COUNTY
WILL EXPIRE AT 500 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire. However gusty winds and heavy rain are still
possible with this thunderstorm.
LAT...LON 2806 8072 2814 8071 2820 8057 2807 8054
TIME...MOT...LOC 2051Z 251DEG 18KT 2814 8059
$$
KNThe 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, 4:16 PM EDT | Special Weather Statement | MLB | Orange | 29 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
Severe Thunderstorm Warnings in Florida, 2021Every severe thunderstorm warning 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.