Alert archive / Florida / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 105, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Aug 21, 2026, 5:51 PM EDT for Osceola County, Florida. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 21, 2026, 5:51 PM EDT (21:51 UTC)
- Expired
- Aug 21, 2026, 6:30 PM EDT
- In force
- 39 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Osceola County, FL
The radar
The Melbourne radar (KMLB), 49 km from the middle of the area, began a volume at 21:51 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, 9.9 hours before the alert went out and 264 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
- 2174 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 813 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- -33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 2:22 PM EDT | Special Marine Warning | MLB | 53 min | |
| Aug 21, 2:55 PM EDT | Special Marine Warning | MLB | 39 min | |
| Aug 21, 2:57 PM EDT | Special Weather Statement | MLB | Saint Lucie | 33 min |
| Aug 21, 5:31 PM EDT | Special Weather Statement | MLB | Osceola | 29 min |
| Aug 21, 5:37 PM EDT | Special Weather Statement | MLB | Osceola | 23 min |
| Aug 21, 5:39 PM EDT | Severe Thunderstorm Warning | MLB | Osceola | 30 min |
| Aug 21, 5:43 PM EDT | Special Weather Statement | MLB | Okeechobee | 32 min |
| Aug 21, 6:02 PM EDT | Special Weather Statement | MLB | Okeechobee | 28 min |
| Aug 21, 6:05 PM EDT | Special Weather Statement | MLB | Orange | 25 min |
| Aug 21, 6:12 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Osceola | 48 min |
| Aug 21, 6:15 PM EDT | Special Weather Statement | MLB | Orange | 30 min |
| Aug 21, 6:20 PM EDT | Special Weather Statement | MLB | Indian River | 25 min |
| Aug 21, 6:28 PM EDT | Special Weather Statement | MLB | Martin | 32 min |
| Aug 21, 6:34 PM EDT | Special Weather Statement | MLB | Brevard | 26 min |
| Aug 21, 6:37 PM EDT | Special Marine Warning | MLB | 68 min | |
| Aug 21, 6:52 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 31 min |
| Aug 21, 7:04 PM EDT | Special Weather Statement | MLB | Seminole | 26 min |
| Aug 21, 7:18 PM EDT | Special Marine Warning | MLB | 31 min | |
| Aug 21, 7:45 PM EDT | Special Marine Warning | MLB | 60 min | |
| Aug 21, 7:47 PM EDT | Special Weather Statement | MLB | Seminole | 28 min |
| Aug 21, 7:55 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Volusia | 16 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2026Every severe thunderstorm warning in 2026
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.