Alert archive / Florida / Severe Thunderstorm Watches in 1997
Severe Thunderstorm Watch 202
The Storm Prediction Center issued this severe thunderstorm watch at Apr 26, 1997, 12:45 PM EDT for 18 counties in Florida. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 26, 1997, 12:45 PM EDT (16:45 UTC)
- Expired
- Apr 26, 1997, 7:00 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
Counties Brevard County, FL, Broward County, FL, Collier County, FL, DeSoto County, FL, Glades County, FL, Hardee County, FL, Hendry County, FL, Highlands County, FL, Indian River County, FL, Lee County, FL, Martin County, FL, Miami-Dade County, FL, Monroe County, FL, Okeechobee County, FL, Osceola County, FL, Palm Beach County, FL, Polk County, FL, Saint Lucie County, FL
The radar
The Melbourne radar (KMLB), 142 km from the middle of the area, began a volume at 16:45 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.
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 1:45 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 60 min |
| Apr 26, 2:25 PM EDT | Tornado Warning | MFL | Miami-Dade | 65 min |
| Apr 26, 3:29 PM EDT | Tornado Warning | MFL | Miami-Dade | 31 min |
| Apr 26, 3:58 PM EDT | Tornado Warning | MFL | Miami-Dade | 47 min |
| Apr 26, 4:51 PM EDT | Severe Thunderstorm Warning | MFL | Miami-Dade | 69 min |
| Apr 26, 6:01 PM EDT | Severe Thunderstorm Warning | MFL | Miami-Dade | 59 min |
| Apr 26, 6:21 PM EDT | Flash Flood Warning | MFL | Miami-Dade | 2 hr |
| Apr 26, 6:57 PM EDT | Severe Thunderstorm Warning | MFL | Miami-Dade | 63 min |
The nearest sounding before it
Miami, FL (KMFL), launched 12:00Z, 4.8 hours before the alert went out and 150 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
- 2348 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 510 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 5.5
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 8:30 AM EDT | Tornado Watch | SPC | Charlotte, DeSoto, Glades, Hardee, Hernando, Highlands and 6 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Florida, 1997Every severe thunderstorm watch 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.