Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 76, NWS Miami, FL

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

NWS Miami, FL issued this severe thunderstorm warning at Sep 29, 2001, 1:15 AM EDT for Miami-Dade County, Monroe County, Florida. It was in force for 60 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, 1:15 AM EDT (05:15 UTC)
Expired
Sep 29, 2001, 2:15 AM EDT
In force
60 min
Issued by
NWS Miami, FL
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Miami-Dade County, FL, Monroe County, FL

The nearest sounding before it

Miami, FL (KMFL), launched 00:00Z, 5.3 hours before the alert went out and 60 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.

805 
WUUS52 KMFL 290514
SVRMIA
FLC025-087-290615-

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

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MIAMI-DADE COUNTY IN SOUTHEAST FLORIDA
  EAST CENTRAL MAINLAND MONROE COUNTY IN SOUTHWEST FLORIDA

* UNTIL 215 AM EDT

* AT 113 AM EDT DOPPLER RADAR INDICATED A LINE OF SEVERE             
  THUNDERSTORMS.REPORTED SEVERE THUNDERSTORMS WITH DAMAGING WINDS    
  ALONG A LINE EXTENDING FROM 16 MILES NORTHEAST OF FLAMINGO TO 12   
  MILES WEST OF KEY LARGO..MOVING NORTHEAST AT 20 MPH.

* SOME LOCATIONS NEAR THE PATH OF THE STORMS THROUGH 215 AM EDT...
  MAHOGANY HAMMOCK
  ROYAL PALM RANGER STATION
  REDLAND AND HOMESTEAD
  NARANJA 


LAT...LON 2533 8091 2502 8061 2549 8029 2581 8059

.END

ESPOSITO

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 29, 1:45 AM EDTTornado WarningMFLMiami-Dade60 min
Sep 29, 2:10 AM EDTSevere Thunderstorm WarningMFLMiami-Dade35 min
Sep 29, 2:49 AM EDTSevere Thunderstorm WarningMFLBroward, Miami-Dade56 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.