Alert archive / Florida / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 56, NWS Miami, FL

June 15, 1997Miami-Dade County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 15, 1997, 12:41 PM EDT for Miami-Dade County, Florida. It was in force for 34 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
Jun 15, 1997, 12:41 PM EDT (16:41 UTC)
Expired
Jun 15, 1997, 1:15 PM EDT
In force
34 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 16:40 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, 4.7 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 1997-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 790 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 1997-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 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
790 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
993 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

645 
WUUS1 KMIA 151645
SVRMIA
FLC025-FLZ502-503-151715-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION...
NATIONAL WEATHER SERVICE MIAMI FL
1241 PM EDT SUN JUN 15 1997

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 115 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHEAST FLORIDA

   ...EASTERN DADE COUNTY

AT 1240 PM...MIAMI DOPPLER RADAR INDICATED A SEVERE THUNDERSTRORM
MOVING NORTHEAST ACROSS SOUTHERN DADE COUNTY. RADAR INDICATES
WIND GUSTS OF 50 TO 60 MPH ARE LIKELY WITH THIS STORM. PERSONS
IN AREAS FROM KENDALL EAST TO CUTLER RIDGE TO NEAR DOWNTOWN MIAMI.

IF YOU ARE CAUGHT OUTSIDE...SEEK REFUGE FROM THE WEATHER IN A STRONG
BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN A SEVERE THUNDERSTORM. STAY INSIDE
AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 8:10 PM EDTSevere Thunderstorm WarningMFLBroward65 min
Jun 15, 2:30 AM EDTSevere Thunderstorm WarningMFLMonroe45 min
Jun 15, 3:17 AM EDTSevere Thunderstorm WarningMFLMonroe58 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.