Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 155, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Sep 27, 2012, 4:07 PM EDT for Broward County, Florida. It was in force for 38 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
- Sep 27, 2012, 4:07 PM EDT (20:07 UTC)
- Expired
- Sep 27, 2012, 4:45 PM EDT
- In force
- 38 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
County Broward County, FL
The radar
The Miami radar (KAMX), 63 km from the middle of the area, began a volume at 20:07 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, 8.1 hours before the alert went out and 42 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
- 2337 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 806 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- -30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
952 WUUS52 KMFL 272007 SVRMFL FLC011-272045- /O.NEW.KMFL.SV.W.0155.120927T2007Z-120927T2045Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 407 PM EDT THU SEP 27 2012 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL BROWARD COUNTY IN SOUTH FLORIDA. * UNTIL 445 PM EDT * AT 403 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 15 MILES NORTH OF INTERSECTION I-75 AND U.S. 27...AND MOVING SOUTH AT 15 MPH. * THE STORM WILL AFFECT... US 27... INTERSECTION OF US 27 AND I-75... 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 ALSO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN AN INTERIOR ROOM IN THE LOWEST FLOOR OF YOUR HOUSE OR BUSINESS IF A TORNADO IS SPOTTED. && LAT...LON 2606 8033 2609 8065 2633 8060 2633 8029 TIME...MOT...LOC 2007Z 002DEG 14KT 2635 8045 $$ BAXTER
2 follow-up statements
267 WWUS52 KMFL 272025 SVSMFL SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 425 PM EDT THU SEP 27 2012 FLC011-272045- /O.CON.KMFL.SV.W.0155.000000T0000Z-120927T2045Z/ BROWARD FL- 425 PM EDT THU SEP 27 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT FOR CENTRAL BROWARD COUNTY... AT 420 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 9 MILES NORTH OF INTERSECTION I-75 AND U.S. 27...MOVING SOUTH AT 15 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... US 27 INTERSECTION OF US 27 AND I-75 AND SURROUNDING COMMUNITIES. SEVERE THUNDERSTORMS CAN ALSO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN AN INTERIOR ROOM IN THE LOWEST FLOOR OF YOUR HOUSE OR BUSINESS IF A TORNADO IS SPOTTED. REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI. LAT...LON 2606 8033 2609 8065 2633 8058 2633 8035 TIME...MOT...LOC 2024Z 009DEG 15KT 2626 8047 $$ BAXTER
869 WWUS52 KMFL 272036 SVSMFL SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 436 PM EDT THU SEP 27 2012 FLC011-272045- /O.CON.KMFL.SV.W.0155.000000T0000Z-120927T2045Z/ BROWARD FL- 436 PM EDT THU SEP 27 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT FOR CENTRAL BROWARD COUNTY... AT 433 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES NORTHWEST OF INTERSECTION I-75 AND U.S. 27...MOVING SOUTH AT 15 MPH. ANOTHER THUNDERSTORM WAS RAPIDLY DEVELOPING JUST NORTH OF I-75 ALONG US 27 MOVING SOUTH AROUND 15 MPH. THIS STORM WAS ALSO SHOWING WINDS IN EXCESS OF 60 MPH ALONG WITH THE POSSIBILITY OF QUARTER SIZE HAIL. SEVERE THUNDERSTORMS CAN ALSO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN AN INTERIOR ROOM IN THE LOWEST FLOOR OF YOUR HOUSE OR BUSINESS IF A TORNADO IS SPOTTED. 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 2606 8033 2609 8065 2633 8058 2633 8035 TIME...MOT...LOC 2035Z 006DEG 13KT 2622 8048 $$ BAXTER
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 27, 2:10 PM EDT | Special Weather Statement | MFL | Miami-Dade | 35 min |
| Sep 27, 2:38 PM EDT | Special Weather Statement | MFL | Palm Beach | 37 min |
| Sep 27, 2:46 PM EDT | Special Weather Statement | MFL | Miami-Dade | 44 min |
| Sep 27, 3:32 PM EDT | Special Weather Statement | MFL | Palm Beach | 43 min |
| Sep 27, 3:35 PM EDT | Special Weather Statement | MFL | Broward | 40 min |
| Sep 27, 3:42 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 48 min |
| Sep 27, 3:59 PM EDT | Special Weather Statement | MFL | Broward | 61 min |
| Sep 27, 4:26 PM EDT | Special Weather Statement | MFL | Collier | 34 min |
| Sep 27, 4:40 PM EDT | Severe Thunderstorm Warning | MFL | Broward | 17 min |
| Sep 27, 5:06 PM EDT | Special Weather Statement | MFL | Collier | 39 min |
| Sep 27, 5:12 PM EDT | Special Weather Statement | MFL | Collier | 48 min |
| Sep 27, 5:23 PM EDT | Special Marine Warning | MFL | 35 min | |
| Sep 27, 5:53 PM EDT | Areal Flood Advisory | MFL | Collier | 56 min |
| Sep 27, 6:34 PM EDT | Special Weather Statement | MFL | Collier | 41 min |
| Sep 27, 6:44 PM EDT | Special Marine Warning | MFL | 61 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.