Alert archive / Florida / Tornado Warnings in 1999
Tornado Warning 4, NWS Miami, FL
NWS Miami, FL issued this tornado warning at Aug 19, 1999, 1:40 PM EDT for Collier County, Florida. It was in force for 45 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
- Aug 19, 1999, 1:40 PM EDT (17:40 UTC)
- Expired
- Aug 19, 1999, 2:25 PM EDT
- In force
- 45 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Collier County, FL
The radar
The Miami radar (KAMX), 111 km from the middle of the area, began a volume at 17:40 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, 5.7 hours before the alert went out and 113 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
- 2298 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 797 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMIA 191741 RRA TORMIA FLC021-191825- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MIAMI FL 140 PM EDT THU AUG 19 1999 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * TORNADO WARNING FOR... WESTERN COLLIER COUNTY IN SOUTHWESTERN FLORIDA * UNTIL 225 PM EDT * AT 135 PM...EMERGENCY MANAGEMENT PERSONNEL REPORTED A TORNADO NEAR U.S. 41 AND RATTLESNAKE-HAMMOCK ROAD MOVING SOUTHWEST. THIS TORNADO WILL AFFECT THE SOUTHERN NAPLES AREA. TAKE COVER. 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. M2OVE TO A MORE SUBSTANTIAL BUILDING. DO NOT TRY TO OUTRUN A TORNADO IN YOUR VEHICLE. &
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 19, 10:16 AM EDT, 3 hours 24 minutes before
FLZ063-066>075-192000- SOUTH FLORIDA HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MIAMI FL 530 AM EDT THU AUG 19 1999 SHOWERS AND THUNDERSTORMS WILL AGAIN BE SCATTERED ACROSS SOUTH FLORIDA TODAY. THIS ACTIVITY WHICH WILL MAINLY OCCUR DURING THE LATE MORNING AND AFTERNOON HOURS WILL BE MOST LIKELY OVER THE INTERIOR AND WESTERN SECTIONS OF THE SOUTH FLORIDA PENINSULA. ALTHOUGH THESE THUNDERSTORMS ARE NOT EXPECTED TO BE SEVERE...THEY WILLP PRODUCE DANGEROUS LIGHTNING...BRIEF PERIODS OF HEAVY RAIN AND GUSTY WINDS. NO SPOTTER ACTIVATION IS ANTICIPATED.
Nearby
Tornado Warnings in Florida, 1999Every tornado warning in 1999Tornadoes in 1999
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.