Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 2, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Apr 6, 2012, 11:46 AM EDT for Broward County, Palm Beach County, Florida. It was in force for 12 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
- Apr 6, 2012, 11:46 AM EDT (15:46 UTC)
- Expired
- Apr 6, 2012, 11:58 AM EDT
- In force
- 12 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
Counties Broward County, FL, Palm Beach County, FL
The radar
The Miami radar (KAMX), 81 km from the middle of the area, began a volume at 15:48 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, 3.8 hours before the alert went out and 55 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
- 2930 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 478 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 167 m²/s²
- 0-3 km storm-relative helicity
- 257 m²/s²
- Significant tornado parameter
- 3.7
- Supercell composite
- 16.2
The text
As transmitted, in the capitals the NWS used until 2016.
735
WUUS52 KMFL 061546
SVRMFL
FLC011-099-061615-
/O.NEW.KMFL.SV.W.0002.120406T1546Z-120406T1615Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
1146 AM EDT FRI APR 6 2012
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN BROWARD COUNTY IN SOUTH FLORIDA.
SOUTHEASTERN PALM BEACH COUNTY IN SOUTH FLORIDA.
* UNTIL 1215 PM EDT
* AT 1143 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED
NEAR PARKLAND...AND MOVING EAST AT 40 MPH.
* THE STORM WILL AFFECT...
DEERFIELD BEACH...
BOCA RATON...
AND SURROUNDING COMMUNITIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS CAN PRODUCE VERY STRONG WINDS IN EXCESS OF 60
MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. STAY
INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 2629 8007 2619 8009 2619 8031 2636 8033
2640 8006 2637 8006
TIME...MOT...LOC 1546Z 258DEG 33KT 2632 8017
$$
AK2 follow-up statements
799
WWUS52 KMFL 061551
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1151 AM EDT FRI APR 6 2012
FLC011-099-061615-
/O.CON.KMFL.SV.W.0002.000000T0000Z-120406T1615Z/
BROWARD FL-PALM BEACH FL-
1151 AM EDT FRI APR 6 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM EDT
FOR SOUTHEASTERN PALM BEACH AND NORTHEASTERN BROWARD COUNTIES...
AT 1148 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
DEERFIELD BEACH...MOVING EAST AT 40 MPH.
SEVERE THUNDERSTORMS CAN PRODUCE VERY STRONG WINDS IN EXCESS OF 60
MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. STAY
INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
LAT...LON 2629 8007 2623 8008 2623 8022 2637 8024
2640 8006 2637 8006
TIME...MOT...LOC 1551Z 260DEG 37KT 2633 8010
$$
AK923
WWUS52 KMFL 061558
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1158 AM EDT FRI APR 6 2012
FLC011-099-061607-
/O.CAN.KMFL.SV.W.0002.000000T0000Z-120406T1615Z/
BROWARD FL-PALM BEACH FL-
1158 AM EDT FRI APR 6 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN PALM BEACH AND
NORTHEASTERN BROWARD COUNTIES IS CANCELLED...
THE STORM THAT PROMPTED THE WARNING HAS MOVED INTO THE ATLANTIC
WATERS.
LAT...LON 2629 8007 2623 8008 2623 8022 2637 8024
2640 8006 2637 8006
TIME...MOT...LOC 1557Z 258DEG 33KT 2634 8006
$$
AKThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 9:09 AM EDT | Special Marine Warning | MFL | 51 min | |
| Apr 6, 9:29 AM EDT | Special Marine Warning | MFL | 46 min | |
| Apr 6, 9:48 AM EDT | Special Weather Statement | MFL | Collier | 42 min |
| Apr 6, 9:53 AM EDT | Severe Thunderstorm Warning | MFL | Collier, Hendry | 37 min |
| Apr 6, 10:12 AM EDT | Special Marine Warning | MFL | 33 min | |
| Apr 6, 10:13 AM EDT | Special Weather Statement | MFL | Collier | 32 min |
| Apr 6, 10:50 AM EDT | Special Marine Warning | MFL | 55 min | |
| Apr 6, 11:18 AM EDT | Special Marine Warning | MFL | 57 min | |
| Apr 6, 11:21 AM EDT | Special Weather Statement | MFL | Collier | 24 min |
| Apr 6, 11:39 AM EDT | Special Weather Statement | MFL | Broward | 36 min |
| Apr 6, 11:51 AM EDT | Special Marine Warning | MFL | 43 min | |
| Apr 6, 1:00 PM EDT | Special Weather Statement | MFL | Broward | 30 min |
| Apr 6, 1:29 PM EDT | Special Weather Statement | MFL | Broward | 31 min |
| Apr 6, 1:39 PM EDT | Severe Thunderstorm Warning | MFL | Broward, Miami-Dade | 17 min |
| Apr 6, 1:42 PM EDT | Special Marine Warning | MFL | 33 min | |
| Apr 6, 1:58 PM EDT | Special Marine Warning | MFL | 62 min | |
| Apr 6, 2:56 PM EDT | Special Marine Warning | MFL | 64 min | |
| Apr 6, 3:36 PM EDT | Special Marine Warning | MFL | 39 min | |
| Apr 6, 4:00 PM EDT | Special Marine Warning | MFL | 45 min | |
| Apr 6, 4:13 PM EDT | Small Craft Advisory | MFL | 48 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.