Alert archive / Florida / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 7, NWS Miami, FL

April 14, 2000Miami-Dade County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Apr 14, 2000, 1:38 PM EDT for Miami-Dade County, Florida. It was in force for 67 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Apr 14, 2000, 1:38 PM EDT (17:38 UTC)
Expired
Apr 14, 2000, 2:45 PM EDT
In force
67 min
Issued by
NWS Miami, FL
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 35 km from the middle of the area, began a volume at 17:39 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, 5.6 hours before the alert went out and 15 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 2000-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1605 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 2000-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
1605 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
598 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
163 m²/s²
Significant tornado parameter
0.8
Supercell composite
7.0

Open this sounding in Storm Lab

The text

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

476 
WUUS52 KMFL 141739
SVRMIA
FLC025-141845-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
138 PM EDT FRI APR 14 2000

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  EXTREME NORTHEASTERN DADE COUNTY IN SOUTHEAST FLORIDA

* UNTIL 245 PM EDT

* AT 138 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES SOUTH OF MIAMI BEACH...MOVING NORTH AT
  10 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR MIAMI BEACH AROUND 140 PM EDT
  NEAR MIAMI SHORES AROUND 155 PM EDT
  NEAR NORTH MIAMI AROUND 205 PM EDT
  NEAR NORTH MIAMI BEACH AROUND 215 PM EDT
  NEAR AVENTURA AROUND 225 PM EDT

THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING STRONG WIND GUSTS IN 
EXCESS OF 55 MPH...WATERSPOUTS...BRIEF TORRENTIAL RAINS IN EXCESS OF 
2 INCHES PER HOUR.



LAT...LON 2572 8024 2571 8004 2597 7997 2597 8023

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 10:04 AM EDTSevere Thunderstorm WarningMFLMonroe56 min

Nearby

Severe Thunderstorm Warnings in Florida, 2000Every severe thunderstorm warning in 2000

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.