Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 121, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Aug 1, 2012, 4:38 PM EDT for Miami-Dade County, Florida. It was in force for 32 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
- Aug 1, 2012, 4:38 PM EDT (20:38 UTC)
- Expired
- Aug 1, 2012, 5:10 PM EDT
- In force
- 32 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
County Miami-Dade County, FL
The radar
The Miami radar (KAMX), 20 km from the middle of the area, began a volume at 20:38 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 (KMIA), launched 12:00Z, 8.6 hours before the alert went out and 12 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
- 2549 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 684 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
548
WUUS52 KMFL 012038
SVRMFL
FLC086-012130-
/O.NEW.KMFL.SV.W.0121.120801T2038Z-120801T2130Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
438 PM EDT WED AUG 1 2012
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN MIAMI-DADE COUNTY IN SOUTH FLORIDA.
* UNTIL 530 PM EDT
* AT 434 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED 3 MILES SOUTH OF THE HAMMOCKS...
AND MOVING NORTHEAST AT 15 MPH.
* THE STORM WILL AFFECT...
INTERSECTION KROME AND KENDALL DRIVE...
THE HAMMOCKS...
CUTLER RIDGE...
WEST KENDALL...
PALMETTO BAY...
KENDALL...
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...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. STAY
INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 2569 8015 2567 8017 2568 8018 2574 8017
2572 8024 2564 8026 2561 8030 2559 8030
2549 8044 2567 8064 2595 8051 2594 8026
2582 8017 2576 8018 2575 8016 2577 8014
2576 8013
TIME...MOT...LOC 2038Z 233DEG 14KT 2563 8044
$$
102 follow-up statements
845
WWUS52 KMFL 012101
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
501 PM EDT WED AUG 1 2012
FLC086-012130-
/O.CON.KMFL.SV.W.0121.000000T0000Z-120801T2130Z/
MIAMI-DADE FL-
501 PM EDT WED AUG 1 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTHEASTERN MIAMI-DADE COUNTY...
AT 500 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED. LARGE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR WEST
KENDALL...MOVING NORTHEAST AT 15 MPH.
SEVERE THUNDERSTORMS CAN PRODUCE VERY STRONG WINDS IN EXCESS OF 58
MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. STAY
INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
LAT...LON 2569 8015 2567 8017 2568 8018 2574 8017
2572 8024 2564 8026 2561 8030 2559 8030
2554 8036 2578 8059 2595 8051 2594 8026
2582 8017 2576 8018 2575 8016 2577 8014
2576 8013
TIME...MOT...LOC 2101Z 233DEG 14KT 2568 8036
$$
10147
WWUS52 KMFL 012110
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
510 PM EDT WED AUG 1 2012
FLC086-012120-
/O.CAN.KMFL.SV.W.0121.000000T0000Z-120801T2130Z/
MIAMI-DADE FL-
510 PM EDT WED AUG 1 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MIAMI-DADE COUNTY
IS 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 2569 8015 2567 8017 2568 8018 2574 8017
2572 8024 2564 8026 2561 8030 2559 8030
2554 8036 2578 8059 2595 8051 2594 8026
2582 8017 2576 8018 2575 8016 2577 8014
2576 8013
TIME...MOT...LOC 2110Z 233DEG 14KT 2570 8033
$$
10The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 3:38 PM EDT | Special Weather Statement | MFL | Miami-Dade | 37 min |
| Aug 1, 4:16 PM EDT | Special Weather Statement | MFL | Miami-Dade | 59 min |
| Aug 1, 4:54 PM EDT | Special Weather Statement | MFL | Broward | 51 min |
| Aug 1, 5:24 PM EDT | Special Weather Statement | MFL | Broward | 51 min |
| Aug 1, 5:29 PM EDT | Special Weather Statement | MFL | Palm Beach | 46 min |
| Aug 1, 5:32 PM EDT | Severe Thunderstorm Warning | MFL | Broward, Palm Beach | 43 min |
| Aug 1, 6:00 PM EDT | Special Marine Warning | MFL | 60 min | |
| Aug 1, 6:12 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 19 min |
| Aug 1, 6:28 PM EDT | Special Weather Statement | MFL | Palm Beach | 47 min |
| Aug 1, 6:29 PM EDT | Special Marine Warning | MFL | 61 min | |
| Aug 1, 6:38 PM EDT | Special Weather Statement | MFL | Glades | 52 min |
| Aug 1, 6:44 PM EDT | Severe Thunderstorm Warning | MFL | Glades | 31 min |
| Aug 1, 7:06 PM EDT | Special Weather Statement | MFL | Hendry | 39 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.