Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 34, NWS Miami, FL

June 25, 2001Broward County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 25, 2001, 2:49 PM EDT for Broward County, Florida. It was in force for 41 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: Jun 25, 2001, 2:49 PM EDT (18:49 UTC)
Expired: Jun 25, 2001, 3:30 PM EDT
In force: 41 min
Issued by: NWS Miami, FL
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Broward County, FL

The radar

The Miami radar (KAMX), 60 km from the middle of the area, began a volume at 18:50 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, 6.8 hours before the alert went out and 34 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: 1412 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 852 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 30 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 251849
SVRMIA
FLC011-251930-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
249 PM EDT MON JUN 25 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME EAST CENTRAL BROWARD COUNTY IN SOUTHEAST FLORIDA

* UNTIL 330 PM EDT

* AT 249 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS OVER FORT
  LAUDERDALE...MOVING SOUTHEAST AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FORT LAUDERDALE BY 250 PM EDT
  DANIA BEACH BY 300 PM EDT

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 2615 8018 2607 8024 2602 8013 2613 8012

.END

GARCIA

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Miami, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 25, 2:30 PM EDT, 19 minutes earlier.

Area forecast discussion, Jun 25, 2:30 PM EDT, 19 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
230 PM EDT MON JUN 25 2001

SHORT WAVE TROUGH OVER SOUTHEAST GULF OF MEXICO THIS AFTERNOON WILL
MOVE NORTHEAST TONIGHT...HOPEFULLY PUTTING AN END TO THE SEVERE
WEATHER OF THE PAST THREE DAYS.

SURFACE RIDGE GRADUALLY REBUILDS ACROSS NORTH FLORIDA ON TUESDAY AND
WEDNESDAY SHIFTING THE AFTERNOON CONVECTION FROM THE SOUTHEAST
FLORIDA TO SOUTHWEST FLORIDA.

EXTENDED...
TROPICAL WAVE NEAR 65W WILL MOVE WEST NORTHWEST WITH AXIS REACHING
SOUTH FLORIDA LATE WEDNESDAY OR THURSDAY.  MOST CONCENTRATED
SHOWER/THUNDERSTORM ACTIVITY WITH THE WAVE WILL MOST LIKELY BE NEAR
ITS AXIS...THUS EVEN THOUGH DEEP LAYER MOISTURE PERSISTS ACROSS
SOUTH FLORIDA BEHIND THE WAVE THROUGH SATURDAY...POPS WILL BE
GREATEST WEDNESDAY NIGHT AND THURSDAY. THE FIRST EPISODE OF SAHARAN
DUST THIS SEASON WILL FOLLOW THE PASSAGE OF THE WAVE.

MARINE...
WINDS WILL GRADUALLY PICK UP FROM THE EAST OVER THE NEXT 36 HOURS AS
RIDGE REFORMS TO THE NORTH. WINDS WILL SHIFT TO NORTHEAST AHEAD OF
APPROACHING TROPICAL WAVE AND BECOME SQUALLY UNTIL AFTER ITS PASSAGE
WHEN THE WIND WILL SHIFT TO SOUTHEAST.

MIA BB 075/089 078/089 079 4433
PBI BB 073/089 076/089 077 4433

.MIA...NONE.

LUSHINE

In the hours before

Local storm report, Jun 25, 2:19 PM EDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI, FL
219 PM EDT MON JUN 25 2001

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0207 PM    NORTH LAUDERDALE          FL   1.00 INCH HAIL
06/25/01   BROWARD                        AT THE INTERSECTION OF
                                          ROCK ISLAND ROAD AND BAILEY
                                          ROAD REPORTED BY SPOTTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 2:06 PM EDT	Severe Thunderstorm Warning	MFL	Broward	39 min
Jun 25, 3:33 PM EDT	Severe Thunderstorm Warning	MFL	Broward	42 min
Jun 25, 3:58 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	47 min
Jun 25, 4:12 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	63 min

Nearby

Severe Thunderstorm Warnings in Florida, 2001 Every 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; radar from the NEXRAD Level II archive.