Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 78, NWS Miami, FL

September 29, 2001Broward County, Miami-Dade County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Sep 29, 2001, 2:49 AM EDT for Broward County, Miami-Dade County, Florida. It was in force for 56 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
Sep 29, 2001, 2:49 AM EDT (06:49 UTC)
Expired
Sep 29, 2001, 3:45 AM EDT
In force
56 min
Issued by
NWS Miami, FL
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Broward County, FL, Miami-Dade County, FL

The nearest sounding before it

Miami, FL (KMFL), launched 00:00Z, 6.8 hours before the alert went out and 17 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 2001-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 222 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 2001-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 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
222 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
678 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

315 
WUUS52 KMFL 290651
SVRMIA
FLC011-025-290745-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
249 AM EDT SAT SEP 29 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BROWARD COUNTY IN SOUTHEAST FLORIDA
  NORTHEASTERN MIAMI-DADE COUNTY IN SOUTHEAST FLORIDA

* UNTIL 345 AM EDT

* AT 249 AM EDT DOPPLER RADAR INDICATED AT LINE OF SEVERE            
  THUNDERSTORMS ALONG A LINE EXTENDING FROM 8 MILES WEST OF HIALEAH  
  TO CORAL GABLES..MOVING NORTH TO NORTHEAST AT 20 MPH.

* SOME LOCATIONS NEAR THE PATH OF THE STORMS THROUGH 345 AM EDT...
  PENNSUCO AND MIAMI INTERNATIONAL AIRPORT
  MIAMI AND HIALEAH
  MIAMI LAKES AND MIRAMAR
  PEMBROKE PINES AND SUNSHINE RANCHES
  CAROL CITY AND MIAMI SHORES
  DAVIE AND SAWGRASS MILLS MALL


LAT...LON 2593 8048 2567 8024 2606 8011 2626 8032

.END

ESPOSITO

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 29, 1:15 AM EDTSevere Thunderstorm WarningMFLMiami-Dade, Monroe60 min
Sep 29, 1:45 AM EDTTornado WarningMFLMiami-Dade60 min
Sep 29, 2:10 AM EDTSevere Thunderstorm WarningMFLMiami-Dade35 min

Nearby

Severe Thunderstorm Warnings in Florida, 2001Every severe thunderstorm warning in 2001

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.