Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 2, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Feb 15, 2021, 11:11 PM EST for Collier County, Miami-Dade County, Monroe County, Florida. It was in force for 34 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
- Feb 15, 2021, 11:11 PM EST (04:11 UTC)
- Expired
- Feb 15, 2021, 11:45 PM EST
- In force
- 34 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Collier County, FL, Miami-Dade County, FL, Monroe County, FL
The radar
The Miami radar (KAMX), 53 km from the middle of the area, began a volume at 04:15 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 00:00Z, 4.2 hours before the alert went out and 55 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
- 985 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 957 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.6
The text
As transmitted.
498
WUUS52 KMFL 160411
SVRMFL
FLC021-086-087-160445-
/O.NEW.KMFL.SV.W.0002.210216T0411Z-210216T0445Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Miami FL
1111 PM EST Mon Feb 15 2021
The National Weather Service in Miami has issued a
* Severe Thunderstorm Warning for...
Southeastern Collier County in southwestern Florida...
Northern Mainland Monroe County in southwestern Florida...
Northern Miami-Dade County in southeastern Florida...
* Until 1145 PM EST.
* At 1111 PM EST, a severe thunderstorm was located near Loop Road Ee
Center, or 26 miles east of Chokoloskee, moving northeast at 20
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Dade-Collier Training Airport.
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.
&&
LAT...LON 2590 8060 2571 8092 2580 8101 2600 8090
2599 8087 2598 8087 2598 8084
TIME...MOT...LOC 0411Z 213DEG 16KT 2575 8090
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
FELL2 follow-up statements
464
WWUS52 KMFL 160426
SVSMFL
Severe Weather Statement
National Weather Service Miami FL
1126 PM EST Mon Feb 15 2021
FLC087-160436-
/O.CAN.KMFL.SV.W.0002.000000T0000Z-210216T0445Z/
Mainland Monroe FL-
1126 PM EST Mon Feb 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN MAINLAND MONROE
COUNTY IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 2590 8060 2577 8085 2578 8087 2581 8087
2581 8091 2585 8098 2600 8090 2599 8087
2598 8087 2598 8084
TIME...MOT...LOC 0426Z 213DEG 16KT 2581 8086
$$
FLC021-086-160445-
/O.CON.KMFL.SV.W.0002.000000T0000Z-210216T0445Z/
Collier FL-Miami-Dade FL-
1126 PM EST Mon Feb 15 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM EST
FOR SOUTHEASTERN COLLIER AND NORTHERN MIAMI-DADE COUNTIES...
At 1126 PM EST, a severe thunderstorm was located near Fortymile
Bend, or 28 miles northwest of Homestead General Airport, moving
northeast at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Dade-Collier Training Airport.
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.
&&
LAT...LON 2590 8060 2577 8085 2578 8087 2581 8087
2581 8091 2585 8098 2600 8090 2599 8087
2598 8087 2598 8084
TIME...MOT...LOC 0426Z 213DEG 16KT 2581 8086
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
FELL139
WWUS52 KMFL 160438
SVSMFL
Severe Weather Statement
National Weather Service Miami FL
1138 PM EST Mon Feb 15 2021
FLC021-086-160447-
/O.EXP.KMFL.SV.W.0002.000000T0000Z-210216T0445Z/
Collier FL-Miami-Dade FL-
1138 PM EST Mon Feb 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN COLLIER AND
NORTHERN MIAMI-DADE COUNTIES WILL EXPIRE AT 1145 PM EST...
The storm which prompted the warning has weakened below severe
limits. Therefore, the warning will be allowed to expire. However
gusty winds and funnel clouds are still possible with this
thunderstorm.
LAT...LON 2590 8060 2577 8085 2578 8087 2581 8087
2581 8091 2585 8098 2600 8090 2599 8087
2598 8087 2598 8084
TIME...MOT...LOC 0437Z 213DEG 16KT 2584 8084
$$
FELLThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 10:53 PM EST | Special Weather Statement | MFL | Miami-Dade | 52 min |
| Feb 15, 11:17 PM EST | Special Weather Statement | MFL | Broward | 28 min |
| Feb 15, 11:19 PM EST | Special Weather Statement | MFL | Glades | 56 min |
| Feb 15, 11:44 PM EST | Special Weather Statement | MFL | Broward | 46 min |
| Feb 16, 12:04 AM EST | Special Weather Statement | MFL | Broward | 26 min |
| Feb 16, 12:29 AM EST | Special Weather Statement | MFL | Palm Beach | 46 min |
| Feb 16, 5:59 AM EST | Special Weather Statement | MFL | Broward | 46 min |
| Feb 16, 6:10 AM EST | Severe Thunderstorm Warning | MFL | Broward, Collier, Hendry | 35 min |
| Feb 16, 6:23 AM EST | Tornado Warning | MFL | Broward, Collier, Hendry, Palm Beach | 37 min |
| Feb 16, 6:46 AM EST | Special Weather Statement | MFL | Palm Beach | 44 min |
| Feb 16, 6:54 AM EST | Special Weather Statement | MFL | Broward | 51 min |
| Feb 16, 7:27 AM EST | Special Weather Statement | MFL | Palm Beach | 48 min |
| Feb 16, 7:42 AM EST | Special Weather Statement | MFL | Broward | 48 min |
| Feb 16, 8:25 AM EST | Special Weather Statement | MFL | Broward | 50 min |
| Feb 16, 9:15 AM EST | Special Weather Statement | MFL | Miami-Dade | 45 min |
| Feb 16, 10:16 AM EST | Special Marine Warning | MFL | 29 min | |
| Feb 16, 10:45 AM EST | Special Marine Warning | MFL | 30 min | |
| Feb 16, 11:56 AM EST | Special Weather Statement | MFL | Miami-Dade | 49 min |
| Feb 16, 12:37 PM EST | Special Weather Statement | MFL | Miami-Dade | 23 min |
| Feb 16, 12:57 PM EST | Special Marine Warning | MFL | 48 min | |
| Feb 16, 1:17 PM EST | Special Weather Statement | MFL | Miami-Dade | 28 min |
| Feb 16, 1:57 PM EST | Special Marine Warning | MFL | 63 min | |
| Feb 16, 2:20 PM EST | Special Marine Warning | MFL | 55 min | |
| Feb 16, 3:02 PM EST | Special Weather Statement | MFL | Broward | 43 min |
| Feb 16, 3:31 PM EST | Special Weather Statement | MFL | Miami-Dade | 44 min |
| Feb 16, 3:43 PM EST | Areal Flood Advisory | MFL | Miami-Dade | 3 hr |
| Feb 16, 4:01 PM EST | Flash Flood Warning | MFL | Miami-Dade | 3 hr |
| Feb 16, 4:16 PM EST | Special Weather Statement | MFL | Broward | 44 min |
| Feb 16, 4:58 PM EST | Special Marine Warning | MFL | 62 min | |
| Feb 16, 5:13 PM EST | Areal Flood Advisory | MFL | Miami-Dade | 3 hr |
| Feb 16, 5:16 PM EST | Special Weather Statement | MFL | Miami-Dade | 44 min |
| Feb 16, 5:49 PM EST | Special Weather Statement | MFL | Broward | 56 min |
| Feb 16, 6:23 PM EST | Special Weather Statement | MFL | Broward | 67 min |
| Feb 16, 6:34 PM EST | Areal Flood Advisory | MFL | Broward | 4 hr |
| Feb 16, 6:51 PM EST | Special Weather Statement | MFL | Broward | 39 min |
| Feb 16, 6:59 PM EST | Areal Flood Advisory | MFL | Miami-Dade | 4 hr |
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.