Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 151, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Sep 11, 2012, 3:28 PM EDT for Broward County, Miami-Dade County, Florida. It was in force for 29 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
- Sep 11, 2012, 3:28 PM EDT (19:28 UTC)
- Expired
- Sep 11, 2012, 3:57 PM EDT
- In force
- 29 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
Counties Broward County, FL, Miami-Dade County, FL
The radar
The Miami radar (KAMX), 31 km from the middle of the area, began a volume at 19:30 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 |
|---|---|---|---|
| Sep 11, 3:41 PM EDT | TSTM WND GST 48 | Doral, FL | A 48 MPH WIND GUST WAS RECORDED AT RONALD REAGAN HIGH SCHOOL IN DORAL VIA WEATHERBUG NETWORK. |
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 12:00Z, 7.5 hours before the alert went out and 5 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
- 1389 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 857 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
874
WUUS52 KMFL 111928
SVRMFL
FLC011-086-112015-
/O.NEW.KMFL.SV.W.0151.120911T1928Z-120911T2015Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
328 PM EDT TUE SEP 11 2012
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTH CENTRAL BROWARD COUNTY IN SOUTH FLORIDA.
NORTHEASTERN MIAMI-DADE COUNTY IN SOUTH FLORIDA.
* UNTIL 415 PM EDT
* AT 326 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED NEAR MIAMI LAKES...AND MOVING
SOUTH AT 15 MPH.
* THE STORM WILL AFFECT...
MIAMI LAKES...
OPA-LOCKA...
HIALEAH GARDENS...
HIALEAH...
DORAL...
MIAMI SPRINGS...
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 2580 8018 2573 8047 2599 8047 2605 8023
2583 8017
TIME...MOT...LOC 1928Z 353DEG 12KT 2593 8034
$$
102 follow-up statements
565
WWUS52 KMFL 111947
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
347 PM EDT TUE SEP 11 2012
FLC011-086-112015-
/O.CON.KMFL.SV.W.0151.000000T0000Z-120911T2015Z/
BROWARD FL-MIAMI-DADE FL-
347 PM EDT TUE SEP 11 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR NORTHEASTERN MIAMI-DADE AND EXTREME SOUTH CENTRAL BROWARD
COUNTIES...
AT 343 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED. DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR HIALEAH GARDENS...
MOVING SOUTH AT 15 MPH.
LAT...LON 2599 8027 2587 8028 2577 8031 2573 8047
2599 8047
TIME...MOT...LOC 1947Z 353DEG 12KT 2587 8033
$$
10413
WWUS52 KMFL 111957
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
357 PM EDT TUE SEP 11 2012
FLC011-086-112006-
/O.CAN.KMFL.SV.W.0151.000000T0000Z-120911T2015Z/
BROWARD FL-MIAMI-DADE FL-
357 PM EDT TUE SEP 11 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MIAMI-DADE AND
EXTREME SOUTH CENTRAL BROWARD COUNTIES IS CANCELLED...
NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE THUNDERSTORM HAS
WEAKENED. THUS THE THUNDERSTORM WARNING HAS BEEN CANCELLED.
LAT...LON 2599 8027 2587 8028 2577 8031 2573 8047
2599 8047
TIME...MOT...LOC 1956Z 353DEG 12KT 2584 8033
$$
10The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 10:56 AM EDT | Special Marine Warning | MFL | 49 min | |
| Sep 11, 12:47 PM EDT | Areal Flood Advisory | MFL | Palm Beach | 3 hr |
| Sep 11, 1:27 PM EDT | Special Weather Statement | MFL | Palm Beach | 48 min |
| Sep 11, 2:33 PM EDT | Special Weather Statement | MFL | Broward | 27 min |
| Sep 11, 2:45 PM EDT | Areal Flood Advisory | MFL | Broward, Palm Beach | 2 hr |
| Sep 11, 2:45 PM EDT | Special Weather Statement | MFL | Miami-Dade | 45 min |
| Sep 11, 2:55 PM EDT | Special Weather Statement | MFL | Glades | 50 min |
| Sep 11, 3:03 PM EDT | Special Weather Statement | MFL | Broward | 42 min |
| Sep 11, 3:10 PM EDT | Areal Flood Advisory | MFL | Broward, Miami-Dade | 116 min |
| Sep 11, 4:01 PM EDT | Special Weather Statement | MFL | Miami-Dade | 44 min |
| Sep 11, 5:13 PM EDT | Areal Flood Advisory | MFL | Collier | 77 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.