Alert archive / Florida / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 67, NWS Miami, FL

September 29, 2003Miami-Dade County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Sep 29, 2003, 4:54 PM EDT for Miami-Dade County, Florida. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 29, 2003, 4:54 PM EDT (20:54 UTC)
Expired
Sep 29, 2003, 5:30 PM EDT
In force
36 min
Issued by
NWS Miami, FL
Area
Counties, with a storm outline in the text

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 36 km from the middle of the area, began a volume at 20:53 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, 8.9 hours before the alert went out and 16 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 2003-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 355 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2003-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
355 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
880 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
71 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.

000 
WUUS52 KMFL 292054
SVRMIA
FLC086-292130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
453 PM EDT MON SEP 29 2003

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

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

* UNTIL 530 PM EDT

* AT 453 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  SEVERE THUNDERSTORM WITH DAMAGING WINDS OVER MIAMI MOVING          
  NORTHEAST AT 20 MPH.

A WIND GUST TO 58 MPH WAS REPORTED WITH THIS STORM

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION...MOVE INDOORS AND AWAY FROM WINDOWS.

LAT...LON 2582 8032 2559 8016 2575 7986 2606 7999

$$

HANDEL

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 29, 10:20 AM EDTFlash Flood WarningMFLCollier100 min
Sep 29, 10:43 AM EDTSpecial Marine WarningMFL62 min
Sep 29, 11:40 AM EDTSpecial Marine WarningMFL65 min
Sep 29, 11:53 AM EDTFlash Flood WarningMFLCollier3 hr
Sep 29, 3:00 PM EDTFlash Flood WarningMFLCollier3 hr
Sep 29, 4:33 PM EDTSpecial Marine WarningMFL117 min
Sep 29, 4:56 PM EDTSevere Thunderstorm WarningMFLMiami-Dade34 min
Sep 29, 5:09 PM EDTSevere Thunderstorm WarningMFLBroward36 min
Sep 29, 6:00 PM EDTFlash Flood WarningMFLCollier3 hr
Sep 29, 6:50 PM EDTSpecial Marine WarningMFL85 min
Sep 29, 7:07 PM EDTSpecial Marine WarningMFL38 min

Nearby

Severe Thunderstorm Warnings in Florida, 2003Every severe thunderstorm warning in 2003

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.