Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 13, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at May 9, 2012, 5:11 PM EDT for Miami-Dade County, Florida. It was in force for 54 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 9, 2012, 5:11 PM EDT (21:11 UTC)
- Expired
- May 9, 2012, 6:05 PM EDT
- In force
- 54 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
County Miami-Dade County, FL
The radar
The Miami radar (KAMX), 29 km from the middle of the area, began a volume at 21:13 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.
The nearest sounding before it
Miami, FL (KMFL), launched 12:00Z, 9.2 hours before the alert went out and 17 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
- 613 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 890 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
881
WUUS52 KMFL 092111
SVRMFL
FLC086-092215-
/O.NEW.KMFL.SV.W.0013.120509T2111Z-120509T2215Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
511 PM EDT WED MAY 9 2012
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EXTREME EAST CENTRAL MIAMI-DADE COUNTY IN SOUTH FLORIDA.
* UNTIL 615 PM EDT
* AT 508 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR KEY BISCAYNE...
AND MOVING EAST AT 10 MPH.
* THE STORM WILL AFFECT...
KEY BISCAYNE...
AND SURROUNDING COMMUNITIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS CAN PRODUCE VERY STRONG WINDS IN EXCESS OF 58
MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. STAY
INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!
&&
LAT...LON 2573 8014 2572 8014 2570 8015 2567 8015
2566 8016 2568 8018 2573 8017 2575 8018
2575 8017 2575 8016 2577 8013 2576 8012
TIME...MOT...LOC 2110Z 255DEG 7KT 2570 8015
$$
602 follow-up statements
898
WWUS52 KMFL 092129
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
529 PM EDT WED MAY 9 2012
FLC086-092215-
/O.CON.KMFL.SV.W.0013.000000T0000Z-120509T2215Z/
MIAMI-DADE FL-
529 PM EDT WED MAY 9 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR EXTREME EAST CENTRAL MIAMI-DADE COUNTY...
AT 525 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING STRONG WINDS AND
HAIL. THIS STORM WAS LOCATED NEAR KEY BISCAYNE...MOVING EAST AT 10
MPH.
SEVERE THUNDERSTORMS CAN PRODUCE VERY STRONG WINDS IN EXCESS OF 58
MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. STAY
INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!
LAT...LON 2573 8014 2572 8014 2570 8015 2567 8015
2566 8016 2568 8018 2573 8017 2575 8018
2575 8017 2575 8016 2577 8013 2576 8012
TIME...MOT...LOC 2127Z 255DEG 7KT 2571 8011
$$
60491
WWUS52 KMFL 092205
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
605 PM EDT WED MAY 9 2012
FLC086-092212-
/O.CAN.KMFL.SV.W.0013.000000T0000Z-120509T2215Z/
MIAMI-DADE FL-
605 PM EDT WED MAY 9 2012
...THE SEVERE THUNDERSTORM WARNING FOR EXTREME EAST CENTRAL
MIAMI-DADE COUNTY IS CANCELLED...
THE SEVERE THUNDERSTORM HAS LESSENED IN INTENSITY AND HAS BEEN
ALLOWED TO EXPIRE. BUT SHOWERS AND THUNDERSTORMS CONTINUE TO AFFECT
KEY BISCAYNE AND ADJACENT WATERS AND RESIDENTS NEED TO CONTINUE TO
EXERCISE CAUTION.
LAT...LON 2573 8014 2572 8014 2570 8015 2567 8015
2566 8016 2568 8018 2573 8017 2575 8018
2575 8017 2575 8016 2577 8013 2576 8012
TIME...MOT...LOC 2202Z 255DEG 7KT 2573 8004
$$
60The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 2:03 PM EDT | Special Weather Statement | MFL | Palm Beach | 42 min |
| May 9, 2:13 PM EDT | Special Marine Warning | MFL | 21 min | |
| May 9, 2:54 PM EDT | Special Marine Warning | MFL | 51 min | |
| May 9, 2:56 PM EDT | Special Marine Warning | MFL | 64 min | |
| May 9, 3:07 PM EDT | Special Weather Statement | MFL | Palm Beach | 38 min |
| May 9, 3:19 PM EDT | Special Weather Statement | MFL | Broward | 41 min |
| May 9, 3:33 PM EDT | Special Marine Warning | MFL | 57 min | |
| May 9, 3:45 PM EDT | Special Weather Statement | MFL | Martin | 45 min |
| May 9, 3:49 PM EDT | Special Weather Statement | MFL | Miami-Dade | 41 min |
| May 9, 3:54 PM EDT | Special Weather Statement | MFL | Martin | 36 min |
| May 9, 3:57 PM EDT | Special Marine Warning | MFL | 63 min | |
| May 9, 4:05 PM EDT | Severe Thunderstorm Warning | MFL | Miami-Dade | 40 min |
| May 9, 4:35 PM EDT | Areal Flood Advisory | MFL | Miami-Dade | 115 min |
| May 9, 4:40 PM EDT | Special Marine Warning | MFL | 65 min | |
| May 9, 5:03 PM EDT | Special Weather Statement | MFL | Miami-Dade | 42 min |
| May 9, 5:43 PM EDT | Special Marine Warning | MFL | 62 min | |
| May 9, 6:29 PM EDT | Areal Flood Advisory | MFL | Miami-Dade | 2 hr |
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.