Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 10, NWS Miami, FL

May 31, 2001Glades County, Florida

NWS Miami, FL issued this severe thunderstorm warning at May 31, 2001, 4:50 PM EDT for Glades County, Florida. It was in force for 55 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
May 31, 2001, 4:50 PM EDT (20:50 UTC)
Expired
May 31, 2001, 5:45 PM EDT
In force
55 min
Issued by
NWS Miami, FL
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Glades County, FL

The radar

The Melbourne radar (KMLB), 109 km from the middle of the area, began a volume at 20:54 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 8.8 hours before the alert went out and 152 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, Cape Canaveral, FL at 12:00Z on 2001-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 100 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 12:00Z on 2001-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
100 J/kg
Mixed-layer CIN
-287 J/kg
Mixed-layer LCL
1321 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-14 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 312054
SVRMIA
FLC043-312145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
450 PM EDT THU MAY 31 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN GLADES COUNTY IN SOUTHERN FLORIDA

* UNTIL 545 PM EDT

* AT 450 PM EDT...MIAMI DOPPLER RADAR INDICATED A SEVERE             
  THUNDERSTORM 13 MILES WEST OF BUCKHEAD RIDGE OR JUST NORTH OF      
  THE BRIGHTON SEMINOLE RESERVATION. THE THUNDERSTORM WAS MOVING
  SLOWLY NORTHEAST.

  THIS THUNDERSTORM COULD PRODUCE LARGE HAIL... BRIEF WIND GUSTS TO  
  OVER 58 MPH... AND VERY HEAVY RAINFALL.

LAT...LON 2721 8086 2719 8108 2708 8111@ 2709 8097

.END

The office that day

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

IssuedProductOfficeCountiesLasted
May 31, 4:31 PM EDTSevere Thunderstorm WarningMFLPalm Beach59 min
May 31, 5:11 PM EDTSevere Thunderstorm WarningMFLPalm Beach64 min

Nearby

Severe Thunderstorm Warnings in Florida, 2001Every 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.