Alert archive / Florida / Special Weather Statements in 2021
Special Weather Statement, NWS Melbourne, FL
NWS Melbourne, FL issued this special weather statement at Aug 24, 2021, 6:21 PM EDT for Orange 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 outline as issued.
The facts
- Issued
- Aug 24, 2021, 6:21 PM EDT (22:21 UTC)
- Expired
- Aug 24, 2021, 7:00 PM EDT
- In force
- 39 min
- Issued by
- NWS Melbourne, FL
- Hail
- 0.00 in
- Wind
- 55
County Orange County, FL
The radar
The Melbourne radar (KMLB), 74 km from the middle of the area, began a volume at 22:24 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, 10.4 hours before the alert went out and 74 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
- 183 J/kg
- Mixed-layer CIN
- -184 J/kg
- Mixed-layer LCL
- 1585 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- -30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
040
WWUS82 KMLB 242221
SPSMLB
Special Weather Statement
National Weather Service Melbourne FL
621 PM EDT Tue Aug 24 2021
FLZ045-046-242300-
Orange FL-Seminole FL-
621 PM EDT Tue Aug 24 2021
...A strong thunderstorm will impact portions of south central
Seminole and central Orange Counties through 700 PM EDT...
At 620 PM EDT, Doppler radar was tracking a strong thunderstorm near
Conway, moving northwest at 10 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Orlando, Oviedo, Winter Park, Casselberry and Maitland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 2845 8117 2842 8133 2862 8143 2867 8118
TIME...MOT...LOC 2220Z 154DEG 8KT 2849 8128
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
KellyThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 8:03 PM EDT | Areal Flood Advisory | MLB | Brevard | 87 min |
| Aug 23, 8:07 PM EDT | Special Weather Statement | MLB | Brevard | 23 min |
| Aug 23, 8:21 PM EDT | Special Marine Warning | MLB | 74 min | |
| Aug 24, 5:24 PM EDT | Special Weather Statement | MLB | Osceola | 36 min |
| Aug 24, 5:51 PM EDT | Special Weather Statement | MLB | Orange | 39 min |
| Aug 24, 6:26 PM EDT | Special Weather Statement | MLB | Osceola | 34 min |
| Aug 24, 6:44 PM EDT | Special Weather Statement | MLB | Seminole | 31 min |
| Aug 24, 6:54 PM EDT | Special Weather Statement | MLB | Seminole | 36 min |
| Aug 24, 7:16 PM EDT | Special Weather Statement | MLB | Seminole | 29 min |
| Aug 24, 7:22 PM EDT | Areal Flood Advisory | MLB | Seminole, Volusia | 83 min |
| Aug 24, 7:46 PM EDT | Special Weather Statement | MLB | Volusia | 44 min |
| Aug 24, 7:52 PM EDT | Special Marine Warning | MLB | 94 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.