Alert archive / Florida / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 23, NWS Miami, FL

July 23, 2000Hendry County, Palm Beach County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jul 23, 2000, 3:17 PM EDT for Hendry County, Palm Beach County, Florida. It was in force for 58 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: Jul 23, 2000, 3:17 PM EDT (19:17 UTC)
Expired: Jul 23, 2000, 4:15 PM EDT
In force: 58 min
Issued by: NWS Miami, FL
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Hendry County, FL, Palm Beach County, FL

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 7.3 hours before the alert went out and 101 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: 3313 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 739 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: -23 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.

304 
WUUS52 KMFL 231917
SVRMIA
FLC043-051-099-232015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
317 PM EDT SUN JUL 23 2000

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL PALM BEACH COUNTY IN SOUTHEAST FLORIDA
  THIS INCLUDES THE CITY OF SOUTH BAY
  EXTREME SOUTHEASTERN GLADES COUNTY IN SOUTHERN FLORIDA
  NORTHEASTERN HENDRY COUNTY IN SOUTHERN FLORIDA
  THIS INCLUDES THE CITY OF CLEWISTON

* UNTIL 415 PM EDT

* AT 307 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 12 MILES SOUTHWEST OF OKEELANTA..MOVING NORTH
  AT 10 MPH.

* SOME LOCATIONS THREATENED THROUGH 415 PM EDT...
  OKEELANTA
  SOUTH BAY
  CLEWISTON

THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING...
  HAIL UP TO THE SIZE OF DIMES
  WINDS UP TO 60 MILES AN HOUR

INTENSE LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN MIAMI.

LAT...LON 2640 8093 2642 8073 2682 8072 2679 8102

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 3:02 PM EDT	Severe Thunderstorm Warning	MFL	Broward	58 min
Jul 23, 3:17 PM EDT	Severe Thunderstorm Warning	MFL	Glades	58 min
Jul 23, 4:13 PM EDT	Severe Thunderstorm Warning	MFL	Glades, Hendry	47 min

Nearby

Severe Thunderstorm Warnings in Florida, 2000 Every severe thunderstorm warning in 2000

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.