Alert archive / Florida / Tornado Warnings in 2001

Tornado Warning 8, NWS Miami, FL

July 23, 2001Broward County, Palm Beach County, Florida

NWS Miami, FL issued this tornado warning at Jul 23, 2001, 3:13 PM EDT for Broward County, Palm Beach County, Florida. It was in force for 62 min. 1 report came from 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, with what was reported inside it.

The facts

Issued: Jul 23, 2001, 3:13 PM EDT (19:13 UTC)
Expired: Jul 23, 2001, 4:15 PM EDT
In force: 62 min
Issued by: NWS Miami, FL
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Broward County, FL, Palm Beach County, FL

The radar

The Miami radar (KAMX), 78 km from the middle of the area, began a volume at 19:14 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.

What was reported inside it

Time	Report	Where	Remark
Jul 23, 4:00 PM EDT	Thunderstorm Wind 50 E	Boca Raton, FL	A SKYWARN spotter reported small to medium-size trees were uprooted.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 7.2 hours before the alert went out and 53 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: 2135 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 874 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -71 m²/s²
0-3 km storm-relative helicity: 66 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 
WFUS52 KMFL 231914
TORMIA

FLC011-099-232015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
313 PM EDT MON JUL 23 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN BROWARD COUNTY IN SOUTHEAST FLORIDA
  SOUTHEASTERN PALM BEACH COUNTY IN SOUTHEAST FLORIDA

* UNTIL 415 PM EDT

* AT 313 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A   
  TORNADO 7 MILES WEST OF TAMARAC...OR ABOUT 7 MILES NORTHWEST OF    
  SUNRISE...MOVING NORTHEAST AT 20 MPH. THE TORNADO WILL LIKELY      
  AFFECT COMMUNITIES FROM CORAL SPRINGS TO BOCA RATON.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WIND IN EXCESS OF 60 MPH...LARGE HAIL...AND DEADLY
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 2625 8052 2610 8041 2637 7988 2653 8006

.END

WARNER
.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 9:30 AM EDT	Severe Thunderstorm Warning	MFL	Collier	60 min
Jul 23, 10:36 AM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	39 min
Jul 23, 10:45 AM EDT	Severe Thunderstorm Warning	MFL	Collier	45 min
Jul 23, 11:37 AM EDT	Severe Thunderstorm Warning	MFL	Collier	53 min
Jul 23, 1:44 PM EDT	Severe Thunderstorm Warning	MFL	Collier	31 min
Jul 23, 2:37 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	38 min
Jul 23, 3:02 PM EDT	Tornado Warning	MFL	Broward	28 min
Jul 23, 3:13 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Miami-Dade	47 min
Jul 23, 4:10 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	65 min
Jul 23, 5:03 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	57 min
Jul 23, 5:40 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	65 min
Jul 23, 6:07 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Miami-Dade	53 min

Nearby

Tornado Warnings in Florida, 2001 Every tornado warning in 2001 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.