Alert archive / Florida / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 55, NWS Miami, FL

August 9, 2003Broward County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Aug 9, 2003, 1:41 PM EDT for Broward County, Florida. It was in force for 64 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: Aug 9, 2003, 1:41 PM EDT (17:41 UTC)
Expired: Aug 9, 2003, 2:45 PM EDT
In force: 64 min
Issued by: NWS Miami, FL
Area: Counties, with a storm outline in the text

County Broward County, FL

The radar

The Miami radar (KAMX), 61 km from the middle of the area, began a volume at 17:41 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, 5.7 hours before the alert went out and 36 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1542 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 845 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: 7 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 091741
SVRMIA
FLC011-091845-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
140 PM EDT SAT AUG 9 2003

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BROWARD COUNTY IN SOUTHEAST FLORIDA

* UNTIL 245 PM EDT

* AT 140 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS WITH LARGE HAIL..MOVING NORTHEAST AT 20 MPH.

* SOME LOCATIONS NEAR THE PATH OF THE STORMS THROUGH 245 PM EDT...   
  PEMBROKE PINES
  DAVIE DOWNTOWN AND COOPER CITY
  DAVIE DOWNTOWN AND PLANTATION
  INTERSECTION I-595 AND I-95 AND LAUDERHILL
  LAUDERHILL AND SUNRISE
  FORT LAUDERDALE AND LAUDERDALE LAKES
  WILTON MANORS AND OAKLAND PARK

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN AN INTERIOR ROOM IN
THE LOWEST FLOOR OF YOUR HOUSE OR BUSINESS IF A TORNADO IS SPOTTED.


LAT...LON 2604 8039 2598 8022 2631 8009 2633 8020

.END

LUSHINE

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 12:13 AM EDT	Severe Thunderstorm Warning	MFL	Collier	47 min
Aug 9, 9:13 AM EDT	Special Marine Warning	MFL		2 hr
Aug 9, 2:00 PM EDT	Tornado Warning	MFL	Broward, Palm Beach	30 min
Aug 9, 3:26 PM EDT	Tornado Warning	MFL	Palm Beach	64 min
Aug 9, 6:35 PM EDT	Severe Thunderstorm Warning	MFL	Broward	40 min
Aug 9, 7:21 PM EDT	Severe Thunderstorm Warning	MFL	Broward	24 min
Aug 9, 7:51 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Miami-Dade	24 min

Nearby

Severe Thunderstorm Warnings in Florida, 2003 Every 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.