Alert archive / Florida / Tornado Warnings in 1997

Tornado Warning 9, NWS Miami, FL

April 26, 1997Miami-Dade County, Florida

NWS Miami, FL issued this tornado warning at Apr 26, 1997, 3:58 PM EDT for Miami-Dade County, Florida. It was in force for 47 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 26, 1997, 3:58 PM EDT (19:58 UTC)
Expired
Apr 26, 1997, 4:45 PM EDT
In force
47 min
Issued by
NWS Miami, FL
Area
Whole counties

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 9 km from the middle of the area, began a volume at 20:02 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.

IssuedProductOfficeLasted
Apr 26, 12:45 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 8.0 hours before the alert went out and 31 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.

Skew-T log-pSkew-T log-p diagram, Miami, FL at 12:00Z on 1997-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2348 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 1997-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

719 
WFUS1 KMIA 261959 RRA
TORMIA
FLC025-262045-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
358 PM EDT SAT APR 26 1997
 
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  445 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTHEAST FLORIDA
 
   ...DADE COUNTY
 
AT 400 PM...A TORNADIC SIGNITURE WAS MOVING OVER KROME AVE NEAR KENDALL
DRIVE. THIS CELL WILL MOVE FROM THE SOUTH SOUTHWEST AT 15 MPH AND WILL
MOVE OVER NORTHWESTERN SUBURBS OF DADE COUNTY BETWEEN 400 PM AND
430 PM VERY CLOSE TO TAMIAMI AIRPORT.
 
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.
 
HAIL IS LIKELY WITH THIS STORM.

The office that day

Everything else NWS Miami, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 26, 2:25 PM EDTTornado WarningMFLMiami-Dade65 min
Apr 26, 3:29 PM EDTTornado WarningMFLMiami-Dade31 min
Apr 26, 4:51 PM EDTSevere Thunderstorm WarningMFLMiami-Dade69 min
Apr 26, 6:01 PM EDTSevere Thunderstorm WarningMFLMiami-Dade59 min
Apr 26, 6:21 PM EDTFlash Flood WarningMFLMiami-Dade2 hr
Apr 26, 6:57 PM EDTSevere Thunderstorm WarningMFLMiami-Dade63 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.