Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 152, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Sep 19, 2012, 7:12 PM EDT for Miami-Dade County, Florida. It was in force for 33 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 19, 2012, 7:12 PM EDT (23:12 UTC)
- Expired
- Sep 19, 2012, 7:45 PM EDT
- In force
- 33 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
County Miami-Dade County, FL
The radar
The Miami radar (KAMX), 16 km from the middle of the area, began a volume at 23:13 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 19, 7:15 PM EDT | TSTM WND DMG | West Kendall, FL | MEDIA REPORTS DOWNED PALM TREE ON KENDALL DRIVE BETWEEN 122ND AND 127TH AVE. EXACT TIME THIS OCCURRED UNKNOWN. |
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, 11.2 hours before the alert went out and 28 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
- 1295 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 920 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
715
WUUS52 KMFL 192312
SVRMFL
FLC086-192345-
/O.NEW.KMFL.SV.W.0152.120919T2312Z-120919T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
712 PM EDT WED SEP 19 2012
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN MIAMI-DADE COUNTY IN SOUTH FLORIDA.
* UNTIL 745 PM EDT
* AT 709 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM SWEETWATER TO 6 MILES SOUTH OF FLORIDA CITY...AND MOVING EAST
AT 15 MPH.
* THE LINE OF STORMS WILL AFFECT...
SWEETWATER...
NARANJA...
GOULDS...
MIAMI SPRINGS...
MIAMI INTERNATIONAL A/P...
PALMETTO BAY...
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.
SEVERE THUNDERSTORMS CAN PRODUCE VERY STRONG WINDS IN EXCESS OF 58
MPH...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 2566 8016 2574 8017 2572 8024 2561 8030
2547 8033 2540 8032 2540 8025 2537 8026
2539 8029 2536 8028 2537 8030 2527 8039
2530 8057 2582 8043 2584 8017 2575 8016
2582 8015 2584 8011
TIME...MOT...LOC 2312Z 278DEG 12KT 2578 8035 2537 8049
$$
102 follow-up statements
148
WWUS52 KMFL 192335
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
735 PM EDT WED SEP 19 2012
FLC086-192345-
/O.CON.KMFL.SV.W.0152.000000T0000Z-120919T2345Z/
MIAMI-DADE FL-
735 PM EDT WED SEP 19 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR EAST CENTRAL MIAMI-DADE COUNTY...
AT 726 PM EDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED. DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM CORAL WAY VILLAGE TO 6 MILES SOUTH OF HOMESTEAD MIAMI
SPEEDWAY...MOVING EAST AT 15 MPH.
AT 715 PM...THE MEDIA REPORTED A PALM TREE DOWN ON KENDALL DRIVE
BETWEEN 122 STREET AND 127 AVENUE.
LAT...LON 2566 8016 2574 8017 2572 8024 2561 8030
2547 8033 2540 8032 2540 8025 2537 8026
2539 8029 2536 8028 2537 8030 2527 8039
2533 8052 2573 8040 2580 8019 2575 8016
2582 8015 2584 8011
TIME...MOT...LOC 2332Z 278DEG 12KT 2577 8028 2536 8042
$$
10314
WWUS52 KMFL 192345
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
745 PM EDT WED SEP 19 2012
FLC086-192356-
/O.EXP.KMFL.SV.W.0152.000000T0000Z-120919T2345Z/
MIAMI-DADE FL-
745 PM EDT WED SEP 19 2012
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MIAMI-DADE COUNTY
HAS EXPIRED...
NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE THUNDERSTORM HAS
WEAKENED. THUS THE THUNDERSTORM WARNING HAS EXPIRED.
LAT...LON 2566 8016 2574 8017 2572 8024 2561 8030
2547 8033 2540 8032 2540 8025 2537 8026
2539 8029 2536 8028 2537 8030 2527 8039
2533 8052 2573 8040 2580 8019 2575 8016
2582 8015 2584 8011
TIME...MOT...LOC 2335Z 278DEG 12KT 2577 8027 2536 8041
$$
10The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 8:44 PM EDT | Special Weather Statement | MFL | Miami-Dade | 31 min |
| Sep 18, 9:24 PM EDT | Special Weather Statement | MFL | Broward | 36 min |
| Sep 19, 5:15 PM EDT | Special Weather Statement | MFL | Monroe | 30 min |
| Sep 19, 5:48 PM EDT | Special Weather Statement | MFL | Miami-Dade | 27 min |
| Sep 19, 7:03 PM EDT | Special Weather Statement | MFL | Miami-Dade | 27 min |
| Sep 19, 7:10 PM EDT | Special Marine Warning | MFL | 77 min | |
| Sep 19, 7:45 PM EDT | Special Weather Statement | MFL | Miami-Dade | 45 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.