Alert archive / Florida / Special Weather Statements in 2021
Special Weather Statement, NWS Miami, FL
NWS Miami, FL issued this special weather statement at Aug 17, 2021, 4:00 PM EDT for Hendry County, Florida. It was in force for 45 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 17, 2021, 4:00 PM EDT (20:00 UTC)
- Expired
- Aug 17, 2021, 4:45 PM EDT
- In force
- 45 min
- Issued by
- NWS Miami, FL
- Hail
- 0.00 in
- Wind
- 30
- Spout
- Possible
County Hendry County, FL
The radar
The Miami radar (KAMX), 106 km from the middle of the area, began a volume at 20:01 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, 8.0 hours before the alert went out and 90 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
- 2164 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 777 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
593
WWUS82 KMFL 172000
SPSMFL
Special Weather Statement
National Weather Service Miami FL
400 PM EDT Tue Aug 17 2021
FLZ066-067-172045-
Hendry FL-Inland Palm Beach County FL-
400 PM EDT Tue Aug 17 2021
...A strong thunderstorm will impact portions of east central Hendry
and southwestern Palm Beach Counties through 445 PM EDT...
At 359 PM EDT, National Weather Service meteorologists were tracking
a strong thunderstorm capable of producing a landspout near Holey
Land Wildlife Refuge, or 13 miles south of South Bay, moving
northwest at 10 mph.
HAZARD...Landspouts and winds in excess of 30 mph.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible. Gusty winds
could knock down tree limbs and blow around unsecured
objects.
Locations impacted include...
Holey Land Wildlife Refuge.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.
&&
LAT...LON 2650 8063 2639 8076 2649 8100 2667 8082
TIME...MOT...LOC 1959Z 116DEG 10KT 2648 8077
LANDSPOUT...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH
$$
Hadi/RAGThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 2:08 PM EDT | Special Weather Statement | MFL | Glades | 52 min |
| Aug 17, 2:32 PM EDT | Special Weather Statement | MFL | Collier | 43 min |
| Aug 17, 2:36 PM EDT | Special Marine Warning | MFL | 39 min | |
| Aug 17, 2:59 PM EDT | Special Weather Statement | MFL | Collier | 46 min |
| Aug 17, 3:11 PM EDT | Areal Flood Advisory | MFL | Collier | 2 hr |
| Aug 17, 4:03 PM EDT | Special Weather Statement | MFL | Monroe | 42 min |
| Aug 17, 4:23 PM EDT | Special Weather Statement | MFL | Collier | 52 min |
| Aug 17, 4:37 PM EDT | Special Weather Statement | MFL | Hendry | 38 min |
| Aug 17, 5:10 PM EDT | Special Weather Statement | MFL | Hendry | 50 min |
| Aug 17, 5:18 PM EDT | Special Weather Statement | MFL | Hendry | 42 min |
| Aug 17, 6:28 PM EDT | Special Weather Statement | MFL | Hendry | 32 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.