Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 149, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Sep 6, 2012, 4:36 PM EDT for Broward County, Palm Beach County, Florida. It was in force for 24 min. 3 reports 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 6, 2012, 4:36 PM EDT (20:36 UTC)
- Expired
- Sep 6, 2012, 5:00 PM EDT
- In force
- 24 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
Counties Broward County, FL, Palm Beach County, FL
The radar
The Miami radar (KAMX), 70 km from the middle of the area, began a volume at 20:39 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 6, 4:42 PM EDT | TSTM WND GST 60 | Sunrise, FL | A THUNDERSTORM PRODUCED A WIND GUST OF 60 MPH IN SUNRISE. |
| Sep 6, 4:43 PM EDT | TSTM WND GST 59 | Sunrise, FL | A THUNDERSTORM PRODUCED A WIND GUST OF 59 MPH AT THE BROWARD COUNTY SCHOOL TECH AND SUPPORT. |
| Sep 6, 5:00 PM EDT | TSTM WND GST 50 | Pompano Beach, FL | A WEATHERBUG SITE RECORDED A WIND GUST OF 50 MPH AT MONARCH HIGH SCHOOL. |
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, 8.6 hours before the alert went out and 45 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
- 2065 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 806 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
217 WUUS52 KMFL 062036 SVRMFL FLC011-099-062100- /O.NEW.KMFL.SV.W.0149.120906T2036Z-120906T2100Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 436 PM EDT THU SEP 6 2012 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN BROWARD COUNTY IN SOUTH FLORIDA. EXTREME SOUTH CENTRAL PALM BEACH COUNTY IN SOUTH FLORIDA. * UNTIL 500 PM EDT * AT 435 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SAWGRASS MILLS MALL...AND MOVING NORTHEAST AT 10 MPH. * THE STORM WILL AFFECT... SAWGRASS MILLS MALL... SUNRISE... LAUDERHILL... TAMARAC... 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 2636 8031 2625 8010 2604 8026 2612 8044 TIME...MOT...LOC 2037Z 211DEG 8KT 2615 8030 $$ AK
1 follow-up statement
125 WWUS52 KMFL 062046 SVSMFL SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 446 PM EDT THU SEP 6 2012 FLC011-099-062100- /O.CON.KMFL.SV.W.0149.000000T0000Z-120906T2100Z/ BROWARD FL-PALM BEACH FL- 446 PM EDT THU SEP 6 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR EXTREME SOUTH CENTRAL PALM BEACH AND NORTHEASTERN BROWARD COUNTIES... AT 443 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR TAMARAC...MOVING NORTH AT 10 MPH. REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI. OR YOU CAN ALSO CALL THE NATIONAL WEATHER SERVICE IN MIAMI DIRECTLY AT 305.229.4528 TO REPORT SEVERE WEATHER. LAT...LON 2616 8042 2636 8031 2625 8010 2608 8023 TIME...MOT...LOC 2046Z 200DEG 10KT 2620 8028 $$ AK
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 12:53 PM EDT | Special Weather Statement | MFL | Broward | 52 min |
| Sep 6, 2:46 PM EDT | Areal Flood Advisory | MFL | Palm Beach | 119 min |
| Sep 6, 2:58 PM EDT | Special Marine Warning | MFL | 92 min | |
| Sep 6, 3:20 PM EDT | Special Weather Statement | MFL | Palm Beach | 25 min |
| Sep 6, 3:32 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 43 min |
| Sep 6, 3:40 PM EDT | Special Weather Statement | MFL | Broward | 35 min |
| Sep 6, 4:01 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 25 min |
| Sep 6, 4:10 PM EDT | Special Weather Statement | MFL | Broward | 50 min |
| Sep 6, 4:52 PM EDT | Severe Thunderstorm Warning | MFL | Broward, Palm Beach | 38 min |
| Sep 6, 5:33 PM EDT | Special Marine Warning | MFL | 36 min | |
| Sep 6, 5:42 PM EDT | Areal Flood Advisory | MFL | Collier | 2 hr |
| Sep 6, 5:47 PM EDT | Areal Flood Advisory | MFL | Glades, Hendry | 118 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.