Alert archive / Florida / Tornado Warnings in 1997
Tornado Warning 4, NWS Miami, FL
NWS Miami, FL issued this tornado warning at Apr 12, 1997, 6:14 AM EDT for Collier County, Monroe County, Florida. It was in force for 61 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
- Apr 12, 1997, 6:14 AM EDT (10:14 UTC)
- Expired
- Apr 12, 1997, 7:15 AM EDT
- In force
- 61 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
Counties Collier County, FL, Monroe County, FL
The radar
The Miami radar (KAMX), 78 km from the middle of the area, began a volume at 10:18 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 00:00Z, 10.2 hours before the alert went out and 86 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
- 218 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 956 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
787 WFUS1 KMIA 121015 RRA TORMIA FLC087-021-121115- BULLETIN - EAS ACTIVATION REQUESTED TORNADO AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE MIAMI FL 614 AM EDT SAT APR 12 1997 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A TORNADO AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 715 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH FLORIDA ...NORTHWESTERN MAINLAND MONROE COUNTY AND THE ADJACENT COASTAL WATERS IN SOUTHWEST FLORIDA ...SOUTHWESTERN COLLIER COUNTY AND THE ADJACENT COASTAL WATERS NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A TORNADO WARNING FOR EXTREME NORTHWEST PART OF MAINLAND MONROE AND SOUTHWEST COLLIER COUNTY. AN INTENSE THUNDERSTORM IS LOCATED ABOUT 15 MILES WEST OF MARCO ISLAND AND HAS SOME CHARACTERISTICS OF POSSIBLE TORNADIC DEVELOPMENT. THE GREATEST THREAT TO THE PUBLIC AND MARINE INTERESTS WILL BE ALONG THE IMMEDIATE COAST BETWEEN NAPLES AND JUST SOUTH OF MARCO ISLAND AS WELL AS FOR A FEW MILES INLAND. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS UNDER STURDY FURNITURE IN AN INTERIOR ROOM ON THE LOWEST FLOOR. USE PILLOWS TO PROTECT YOUR HEAD. AVOID WINDOWS. A MOBILE HOME IS NOT A SAFE REFUGE FROM A TORNADO. MOVE TO A MORE SUBSTANTIAL BUILDING. DO NOT TRY TO OUTRUN A TORNADO IN YOUR VECHICLE. WATCH FOR SIGNS OF DEVELOPING SEVERE STORMS. HAILSTONES AND UNUSUALLY LOW SWIRLING CLOUDS ARE OFTEN SEEN NEAR DEVELOPING TORNADOES. STRONG DAMAGING WINDS AND TORNADOES OFTEN PRODUCE A LOUD ROARING SOUND LIKE A TRAIN. FREQUENT LIGHTNING OCCURS NEAR THE MOST SEVERE PART OF THE THUNDERSTORM. AT NIGHT OR DURING HEAVY RAIN...THE ONLY CLUE TO A TORNADOS PRESENCE MAY BE ITS ROAR. IF A UNUSUALLY LOUD ROAR IS HEARD... TAKE COVER IMMEDIATELY.
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 5:09 AM EDT | Severe Thunderstorm Warning | MFL | Collier | 66 min |
| Apr 12, 7:53 AM EDT | Severe Thunderstorm Warning | MFL | Miami-Dade | 67 min |
| Apr 12, 8:20 AM EDT | Flash Flood Warning | MFL | Collier | 115 min |
| Apr 12, 10:40 AM EDT | Flash Flood Warning | MFL | Collier | 110 min |
Nearby
Tornado Warnings in Florida, 1997Every tornado warning in 1997Tornadoes 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.