Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 69, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jun 7, 2012, 12:26 AM EDT for Collier County, Florida. It was in force for 26 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 7, 2012, 12:26 AM EDT (04:26 UTC)
- Expired
- Jun 7, 2012, 12:52 AM EDT
- In force
- 26 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
County Collier County, FL
The radar
The Miami radar (KAMX), 128 km from the middle of the area, began a volume at 04:27 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 7, 12:35 AM EDT | TSTM WND GST 50 | Marco Island, FL | A MEMBER OF THE PUBLIC ESTIMATED WIND SPEEDS OF 40 TO 50 MPH DURING A THUNDERSTORM. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Miami, FL (KMFL), launched 00:00Z, 4.4 hours before the alert went out and 136 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
- 2482 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 850 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.2
The text
As transmitted, in the capitals the NWS used until 2016.
160
WUUS52 KMFL 070426
SVRMFL
FLC021-070515-
/O.NEW.KMFL.SV.W.0069.120607T0426Z-120607T0515Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
1226 AM EDT THU JUN 7 2012
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN COLLIER COUNTY IN SOUTH FLORIDA.
* UNTIL 115 AM EDT
* AT 1222 AM 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 NEAR
CAPE ROMANO...AND MOVING NORTH AT 10 MPH.
* THE STORM WILL AFFECT...
CAPE ROMANO...
MARCO ISLAND...
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 2601 8148 2588 8153 2589 8155 2589 8159
2590 8162 2589 8164 2590 8165 2589 8168
2586 8166 2584 8168 2591 8174 2595 8176
2597 8175 2601 8177 2602 8177
TIME...MOT...LOC 0426Z 179DEG 11KT 2582 8167
$$
MJB1 follow-up statement
105
WWUS52 KMFL 070452
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1252 AM EDT THU JUN 7 2012
FLC021-070502-
/O.CAN.KMFL.SV.W.0069.000000T0000Z-120607T0515Z/
COLLIER FL-
1252 AM EDT THU JUN 7 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN COLLIER COUNTY IS
CANCELLED...
NATIONAL WEATHER SERVICE RADAR INDICATES THE THUNDERSTORM HAS
WEAKENED. THUS THE THUNDERSTORM WARNING HAS BEEN CANCELLED.
THUNDERSTORMS REMAIN IN THE AREA. FREQUENT LIGHTNING...GUSTY WINDS TO
40 MPH...VERY HEAVY RAINFALL AND SMALL HAIL ARE STILL POSSIBLE. STAY
TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR THE LATEST UPDATES.
LAT...LON 2601 8148 2588 8153 2589 8155 2589 8159
2590 8162 2589 8164 2590 8165 2589 8168
2586 8166 2584 8168 2591 8174 2595 8176
2597 8175 2601 8177 2602 8177
TIME...MOT...LOC 0452Z 179DEG 11KT 2590 8167
$$
MJBThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 11:09 PM EDT | Special Weather Statement | MFL | Collier | 66 min |
| Jun 6, 11:56 PM EDT | Special Marine Warning | MFL | 49 min | |
| Jun 7, 12:10 AM EDT | Special Weather Statement | MFL | Collier | 65 min |
| Jun 7, 12:46 AM EDT | Special Marine Warning | MFL | 28 min | |
| Jun 7, 12:58 AM EDT | Special Weather Statement | MFL | Collier | 47 min |
| Jun 7, 1:39 AM EDT | Special Weather Statement | MFL | Collier | 36 min |
| Jun 7, 4:27 PM EDT | Special Weather Statement | MFL | Martin | 33 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.