Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 40, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at May 19, 2012, 4:52 PM EDT for Collier County, Hendry County, Florida. It was in force for 18 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
- May 19, 2012, 4:52 PM EDT (20:52 UTC)
- Expired
- May 19, 2012, 5:10 PM EDT
- In force
- 18 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
Counties Collier County, FL, Hendry County, FL
The radar
The Miami radar (KAMX), 144 km from the middle of the area, began a volume at 20:54 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, 8.9 hours before the alert went out and 140 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
- 1791 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 625 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
812
WUUS52 KMFL 192052
SVRMFL
FLC021-051-192130-
/O.NEW.KMFL.SV.W.0040.120519T2052Z-120519T2130Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
452 PM EDT SAT MAY 19 2012
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WEST CENTRAL HENDRY COUNTY IN SOUTH FLORIDA.
NORTH CENTRAL COLLIER COUNTY IN SOUTH FLORIDA.
* UNTIL 530 PM EDT
* AT 450 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 5 MILES
WEST OF FELDA...AND MOVING SOUTHEAST AT 10 MPH.
* THE STORM WILL AFFECT...
FELDA...
AND SURROUNDING COMMUNITIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MPH AND
OR LARGE HAIL. FREQUENT TO EXCESSIVE LIGHTNING AND HEAVY RAINFALL IS
ALSO POSSIBLE. IF THE STORM APPROACHES YOUR LOCATION, SEEK SHELTER IN
AN ENCLOSED BUILDING ON THE LOWEST FLOOR AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 2643 8157 2655 8157 2663 8147 2648 8124
2629 8148 2642 8161
TIME...MOT...LOC 2052Z 298DEG 9KT 2653 8151
$$
AK1 follow-up statement
225
WWUS52 KMFL 192110
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
510 PM EDT SAT MAY 19 2012
FLC021-051-192119-
/O.CAN.KMFL.SV.W.0040.000000T0000Z-120519T2130Z/
HENDRY FL-COLLIER FL-
510 PM EDT SAT MAY 19 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL COLLIER AND WEST
CENTRAL HENDRY COUNTIES IS CANCELLED...
NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE THUNDERSTORM HAS
WEAKENED. THUS THE THUNDERSTORM WARNING HAS BEEN CANCELLED.
HOWEVER...THUNDERSTORMS REMAIN IN THE AREA. THESE STORMS WILL BE
CAPABLE OF PRODUCING FREQUENT TO EXCESSIVE LIGHTNING...GUSTY WINDS
UP TO 55 MPH...AND TORRENTIAL DOWNPOURS.
LAT...LON 2643 8157 2655 8157 2663 8147 2648 8124
2629 8148 2642 8161
TIME...MOT...LOC 2109Z 298DEG 9KT 2649 8146
$$
AKThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 12:37 PM EDT | Areal Flood Advisory | MFL | Broward, Miami-Dade | 2 hr |
| May 19, 2:02 PM EDT | Special Weather Statement | MFL | Palm Beach | 43 min |
| May 19, 2:04 PM EDT | Special Weather Statement | MFL | Broward | 26 min |
| May 19, 2:10 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 22 min |
| May 19, 2:11 PM EDT | Special Weather Statement | MFL | Palm Beach | 34 min |
| May 19, 2:43 PM EDT | Special Weather Statement | MFL | Palm Beach | 47 min |
| May 19, 2:45 PM EDT | Special Weather Statement | MFL | Broward | 30 min |
| May 19, 3:04 PM EDT | Special Weather Statement | MFL | Broward | 56 min |
| May 19, 3:12 PM EDT | Special Weather Statement | MFL | Palm Beach | 48 min |
| May 19, 3:16 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 44 min |
| May 19, 3:35 PM EDT | Special Marine Warning | MFL | 43 min | |
| May 19, 3:47 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 16 min |
| May 19, 3:54 PM EDT | Special Weather Statement | MFL | Monroe | 36 min |
| May 19, 4:29 PM EDT | Special Weather Statement | MFL | Monroe | 61 min |
| May 19, 4:31 PM EDT | Special Weather Statement | MFL | Miami-Dade | 44 min |
| May 19, 4:32 PM EDT | Special Weather Statement | MFL | Broward | 43 min |
| May 19, 4:34 PM EDT | Special Marine Warning | MFL | 86 min | |
| May 19, 4:34 PM EDT | Special Weather Statement | MFL | Hendry | 41 min |
| May 19, 4:39 PM EDT | Severe Thunderstorm Warning | MFL | Glades, Hendry | 39 min |
| May 19, 4:40 PM EDT | Special Weather Statement | MFL | Hendry | 50 min |
| May 19, 5:23 PM EDT | Special Weather Statement | MFL | Hendry | 52 min |
| May 19, 5:32 PM EDT | Severe Thunderstorm Warning | MFL | Collier, Hendry | 43 min |
| May 19, 5:39 PM EDT | Special Weather Statement | MFL | Glades | 51 min |
| May 19, 6:03 PM EDT | Severe Thunderstorm Warning | MFL | Broward, Collier, Hendry | 42 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2012Every severe thunderstorm warning in 2012
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.