Alert archive / Florida / Tornado Warnings in 2004
Tornado Warning 21, NWS Miami, FL
NWS Miami, FL issued this tornado warning at Oct 20, 2004, 5:34 PM EDT for Broward County, Florida. It was in force for 26 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
- Oct 20, 2004, 5:34 PM EDT (21:34 UTC)
- Expired
- Oct 20, 2004, 6:00 PM EDT
- In force
- 26 min
- Issued by
- NWS Miami, FL
- Area
- Counties, with a storm outline in the text
County Broward County, FL
The radar
The Miami radar (KAMX), 66 km from the middle of the area, began a volume at 21:36 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, 9.6 hours before the alert went out and 40 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
- 1803 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 779 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS52 KMFL 202134 TORMIA FLC011-202200- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MIAMI FL 534 PM EDT WED OCT 20 2004 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * TORNADO WARNING FOR... EASTERN BROWARD COUNTY IN SOUTH FLORIDA * UNTIL 600 PM EDT * AT 526 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR LAUDERDALE LAKES...OR ABOUT NEAR MARGATE...MOVING SOUTH AT 15 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... LAUDERDALE LAKES...LAUDERHILL AND WILTON MANORS BY 540 PM EDT PLANTATION BY 545 PM EDT FORT LAUDERDALE BY 550 PM EDT PORT EVERGLADES BY 555 PM EDT DANIA BEACH...HOLLYWOOD AND HALLANDALE BEACH BY 600 PM EDT WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS. A TRAINED SPOTTER REPORTED A FUNNEL CLOUD WHILE DRIVING WEST ON OAKLAND PARK BOULEVARD NEAR 27TH AVENUE. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. LAT...LON 2628 8009 2625 8029 2598 8028 2599 8000 $$ PFOST
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 20, 2:47 PM EDT | Special Marine Warning | MFL | 43 min | |
| Oct 20, 3:06 PM EDT | Special Marine Warning | MFL | 39 min | |
| Oct 20, 3:17 PM EDT | Special Marine Warning | MFL | 43 min | |
| Oct 20, 3:45 PM EDT | Special Marine Warning | MFL | 60 min | |
| Oct 20, 3:45 PM EDT | Special Marine Warning | MFL | 60 min | |
| Oct 20, 3:51 PM EDT | Special Marine Warning | MFL | 54 min | |
| Oct 20, 4:40 PM EDT | Special Marine Warning | MFL | 65 min | |
| Oct 20, 4:58 PM EDT | Severe Thunderstorm Warning | MFL | Broward, Palm Beach | 62 min |
| Oct 20, 5:55 PM EDT | Special Marine Warning | MFL | 65 min | |
| Oct 20, 5:58 PM EDT | Severe Thunderstorm Warning | MFL | Broward, Miami-Dade | 62 min |
Nearby
Tornado Warnings in Florida, 2004Every tornado warning in 2004Tornadoes in 2004
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.