Alert archive / Florida / Special Weather Statements in 2021
Special Weather Statement, NWS Miami, FL
NWS Miami, FL issued this special weather statement at Aug 9, 2021, 3:43 PM EDT for Collier County, Florida. It was in force for 47 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 9, 2021, 3:43 PM EDT (19:43 UTC)
- Expired
- Aug 9, 2021, 4:30 PM EDT
- In force
- 47 min
- Issued by
- NWS Miami, FL
- Hail
- 0.00 in
- Wind
- 40
County Collier County, FL
The radar
The Miami radar (KAMX), 153 km from the middle of the area, began a volume at 19:45 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, 7.7 hours before the alert went out and 154 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
- 2002 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 935 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
107
WWUS82 KMFL 091943
SPSMFL
Special Weather Statement
National Weather Service Miami FL
343 PM EDT Mon Aug 9 2021
FLZ069-070-092030-
Coastal Collier County FL-Inland Collier County FL-
343 PM EDT Mon Aug 9 2021
...A strong thunderstorm will impact portions of west central Collier
County through 430 PM EDT...
At 343 PM EDT, National Weather Service meteorologists were tracking
a strong thunderstorm capable of producing a funnel cloud over
Vineyards, or near Naples, moving west at 10 mph.
HAZARD...Funnel clouds and winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Funnel clouds occasionally touch down and produce tornadoes
or waterspouts. Gusty winds could knock down tree limbs and
blow around unsecured objects.
Locations impacted include...
Naples, Golden Gate Estates, Naples Park, Vineyards, Golden Gate,
East Naples, North Naples, Pelican Bay and Quail Creek Estate.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
Conditions are favorable for the development of weak, brief funnel
clouds. Theis type of funnel cloud is harmless, but on rare occasions
they can briefly touch down, producing wind gusts over 50 mph. If a
funnel cloud is spotted move indoors and report your sighting to the
National Weather Service.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 2633 8184 2633 8182 2632 8182 2632 8166
2636 8166 2636 8164 2620 8162 2612 8171
2611 8185
TIME...MOT...LOC 1943Z 108DEG 10KT 2622 8177
FUNNEL CLOUD...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
$$
WeinmanThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 8:21 PM EDT | Special Marine Warning | MFL | 54 min | |
| Aug 8, 9:03 PM EDT | Special Marine Warning | MFL | 57 min | |
| Aug 8, 9:18 PM EDT | Special Marine Warning | MFL | 27 min | |
| Aug 8, 9:29 PM EDT | Special Weather Statement | MFL | Hendry | 31 min |
| Aug 8, 9:40 PM EDT | Special Marine Warning | MFL | 35 min | |
| Aug 9, 2:53 PM EDT | Special Marine Warning | MFL | 67 min | |
| Aug 9, 3:15 PM EDT | Areal Flood Advisory | MFL | Collier | 2 hr |
| Aug 9, 3:24 PM EDT | Special Marine Warning | MFL | 66 min | |
| Aug 9, 3:33 PM EDT | Special Weather Statement | MFL | Hendry | 42 min |
| Aug 9, 3:41 PM EDT | Areal Flood Advisory | MFL | Collier | 109 min |
| Aug 9, 4:35 PM EDT | Special Weather Statement | MFL | Collier | 40 min |
| Aug 9, 4:37 PM EDT | Special Marine Warning | MFL | 53 min | |
| Aug 9, 5:01 PM EDT | Special Weather Statement | MFL | Collier | 44 min |
| Aug 9, 5:26 PM EDT | Special Marine Warning | MFL | 34 min | |
| Aug 9, 5:35 PM EDT | Special Weather Statement | MFL | Broward | 40 min |
| Aug 9, 6:42 PM EDT | Special Marine Warning | MFL | 63 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.