Alert archive / Florida / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 19, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at May 12, 1997, 3:20 PM EDT for Broward County, Florida. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 12, 1997, 3:20 PM EDT (19:20 UTC)
- Expired
- May 12, 1997, 4:15 PM EDT
- In force
- 55 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Broward County, FL
The radar
The Miami radar (KAMX), 60 km from the middle of the area, began a volume at 19:19 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 12, 12:00 PM EDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Miami, FL (KMFL), launched 12:00Z, 7.3 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
- 913 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 733 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Local storm report, May 12, 2:47 PM EDT, 33 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MIAMI, FL
247 PM EDT MON MAY 12 1997
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0200 PM MIAMI FL TORNADO
05/12/97 DADE MANY REPORTS BY PUBLIC AND
LOCAL T.V. STATIONS OF
TORNADO IN DOWNTOWN MIAMI.
TREES WITH LEAVES STRIPPED.
WINDOWS BLOWN OUT. FENCES
DOWN.Local storm report, May 12, 2:49 PM EDT, 31 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MIAMI, FL
247 PM EDT MON MAY 12 1997
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0200 PM MIAMI FL TORNADO
05/12/97 DADE MANY REPORTS BY PUBLIC AND
LOCAL T.V. STATIONS OF
TORNADO IN DOWNTOWN MIAMI.
R TREES WITH LEAVES STRIPPED.
WINDOWS BLOWN OUT. FENCES
DOWN.The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 12:10 PM EDT | Tornado Warning | MFL | Collier, Hendry | 60 min |
| May 12, 1:55 PM EDT | Tornado Warning | MFL | Miami-Dade | 65 min |
| May 12, 2:15 PM EDT | Tornado Warning | MFL | Broward | 60 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1997Every severe thunderstorm warning in 1997
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.