Alert archive / Florida / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 51, NWS Miami, FL

June 14, 1997Broward County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 14, 1997, 8:10 PM EDT for Broward County, Florida. It was in force for 65 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 14, 1997, 8:10 PM EDT (00:10 UTC)
Expired
Jun 14, 1997, 9:15 PM EDT
In force
65 min
Issued by
NWS Miami, FL
Area
Whole counties

County Broward County, FL

The radar

The Miami radar (KAMX), 60 km from the middle of the area, began a volume at 00:10 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, 0.2 hours before the alert went out and 40 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 00:00Z on 1997-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1416 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 00:00Z on 1997-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 300 square meters per square second.193958Sfc1 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
1416 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
674 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
300 m²/s²
0-3 km storm-relative helicity
275 m²/s²
Significant tornado parameter
1.4
Supercell composite
10.5

Open this sounding in Storm Lab

The text

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

419 
WUUS1 KMIA 150011 RRA
SVRMIA
FLC011-150115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
810 PM EDT SAT JUN 14 1997
 
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  915 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTHEAST FLORIDA
 
   ...BROWARD COUNTY
 
AND THE ADJACENT COASTAL WATERS
 
 
AT 805 PM EDT...DOPPLER RADAR AT MIAMI INDICATED A LINE OF SEVERE
THUNDERSTORMS ACROSS NORTHERN BROWARD COUNTY. THIS LINE IS MOVING
SOUTH AT 15 MPH. ALL OF METRO BROWARD COUNTY WILL BE AFFECTED BY
THIS LINE OF THUNDERSTORMS.
 
DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN A SEVERE THUNDERSTORM. SEEK
SHELTER IN A STRONG BUILDING. STAY AWAY FROM WINDOWS. DO NOT USE
TELEPHONES OR ELECTRICAL APPLIANCES.
 
 
 
&

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jun 14, 7:54 PM EDT, 16 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MIAMI, FL
754 PM EDT SAT JUN 14 1997

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0525 PM    BAL HARBOUR               FL
06/14/97   DADE                           WATERSPOUT REPORTED 100
                                          YARDS OFF THE OFFSHORE
                                          BETWEEN 96TH AND 97TH
                                          STREETS AT 625 PM (EDT).
                                          WATERSPOUT LASTED
                                          APPROXIMATELY 11 MINUTES.

0630 PM    CORAL GABLES              FL
06/14/97   DADE                           3 INCHES OF RAIN FELL
                                          BETWEEN 6:15 PM AND 7:30
                                          PM (EDT). MINOR STREET
                                          FLOODING REPORTED.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 2:30 AM EDTSevere Thunderstorm WarningMFLMonroe45 min
Jun 15, 3:17 AM EDTSevere Thunderstorm WarningMFLMonroe58 min
Jun 15, 12:41 PM EDTSevere Thunderstorm WarningMFLMiami-Dade34 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.