Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 32, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jun 23, 2021, 2:29 PM EDT for Collier County, Monroe County, Florida. It was in force for 31 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 23, 2021, 2:29 PM EDT (18:29 UTC)
- Expired
- Jun 23, 2021, 3:00 PM EDT
- In force
- 31 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Collier County, FL, Monroe County, FL
The radar
The Miami radar (KAMX), 73 km from the middle of the area, began a volume at 18:29 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, 6.5 hours before the alert went out and 82 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
- 431 J/kg
- Mixed-layer CIN
- -123 J/kg
- Mixed-layer LCL
- 1206 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
917
WUUS52 KMFL 231829
SVRMFL
FLC021-087-231900-
/O.NEW.KMFL.SV.W.0032.210623T1829Z-210623T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Miami FL
229 PM EDT Wed Jun 23 2021
The National Weather Service in Miami has issued a
* Severe Thunderstorm Warning for...
Southern Collier County in southwestern Florida...
North central Mainland Monroe County in southwestern Florida...
* Until 300 PM EDT.
* At 229 PM EDT, a severe thunderstorm was located 8 miles northwest
of Loop Road Ee Center, or 16 miles east of Chokoloskee, and is
nearly stationary.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Big Cypress National Preserve.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Miami. You can also share your report with NWS Miami on
Facebook and Twitter.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2577 8120 2588 8115 2586 8097 2572 8103
TIME...MOT...LOC 1829Z 001DEG 1KT 2581 8110
HAIL...1.00IN
WIND...60MPH
$$
BAXTER1 follow-up statement
670
WWUS52 KMFL 231855
SVSMFL
Severe Weather Statement
National Weather Service Miami FL
255 PM EDT Wed Jun 23 2021
FLC021-087-231905-
/O.EXP.KMFL.SV.W.0032.000000T0000Z-210623T1900Z/
Collier FL-Mainland Monroe FL-
255 PM EDT Wed Jun 23 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN COLLIER AND NORTH
CENTRAL MAINLAND MONROE COUNTIES WILL EXPIRE AT 300 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire. However small hail, gusty winds and heavy rain
are still possible with this thunderstorm.
LAT...LON 2577 8120 2588 8115 2586 8097 2572 8103
TIME...MOT...LOC 1855Z 001DEG 1KT 2580 8110
$$
BAXTERThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 8:38 PM EDT | Special Marine Warning | MFL | 40 min | |
| Jun 22, 9:37 PM EDT | Special Weather Statement | MFL | Broward | 53 min |
| Jun 22, 10:38 PM EDT | Special Weather Statement | MFL | Broward | 52 min |
| Jun 22, 11:06 PM EDT | Areal Flood Advisory | MFL | Broward | 114 min |
| Jun 22, 11:27 PM EDT | Special Weather Statement | MFL | Broward | 48 min |
| Jun 23, 12:34 AM EDT | Special Marine Warning | MFL | 56 min | |
| Jun 23, 11:14 AM EDT | Special Weather Statement | MFL | Hendry | 46 min |
| Jun 23, 11:45 AM EDT | Special Marine Warning | MFL | 30 min | |
| Jun 23, 11:58 AM EDT | Special Weather Statement | MFL | Hendry | 47 min |
| Jun 23, 12:22 PM EDT | Severe Thunderstorm Warning | MFL | Collier, Hendry | 24 min |
| Jun 23, 12:30 PM EDT | Special Weather Statement | MFL | Palm Beach | 45 min |
| Jun 23, 12:48 PM EDT | Special Weather Statement | MFL | Hendry | 42 min |
| Jun 23, 1:03 PM EDT | Special Weather Statement | MFL | Broward | 42 min |
| Jun 23, 1:05 PM EDT | Special Weather Statement | MFL | Martin | 40 min |
| Jun 23, 1:32 PM EDT | Special Weather Statement | MFL | Collier | 43 min |
| Jun 23, 1:46 PM EDT | Special Weather Statement | MFL | Palm Beach | 44 min |
| Jun 23, 1:47 PM EDT | Special Weather Statement | MFL | Broward | 43 min |
| Jun 23, 2:11 PM EDT | Special Weather Statement | MFL | Collier | 49 min |
| Jun 23, 2:25 PM EDT | Special Weather Statement | MFL | Monroe | 50 min |
| Jun 23, 2:25 PM EDT | Special Weather Statement | MFL | Palm Beach | 50 min |
| Jun 23, 2:33 PM EDT | Special Marine Warning | MFL | 42 min | |
| Jun 23, 2:54 PM EDT | Special Weather Statement | MFL | Palm Beach | 51 min |
| Jun 23, 3:02 PM EDT | Special Weather Statement | MFL | Monroe | 43 min |
| Jun 23, 3:12 PM EDT | Special Weather Statement | MFL | Broward | 48 min |
| Jun 23, 3:37 PM EDT | Special Marine Warning | MFL | 68 min | |
| Jun 23, 3:41 PM EDT | Special Weather Statement | MFL | Monroe | 64 min |
| Jun 23, 4:37 PM EDT | Special Weather Statement | MFL | Monroe | 53 min |
| Jun 23, 5:59 PM EDT | Areal Flood Advisory | MFL | Miami-Dade | 56 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.