Alert archive / Florida / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 207

April 24, 200015 counties in Florida

The Storm Prediction Center issued this severe thunderstorm watch at Apr 24, 2000, 5:00 PM EDT for 15 counties in Florida. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 24, 2000, 5:00 PM EDT (21:00 UTC)
Expired
Apr 24, 2000, 10:00 PM EDT
In force
5 hr
Issued by
the Storm Prediction Center

Counties Alachua County, FL, Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Gilchrist County, FL, Lafayette County, FL, Levy County, FL, Putnam County, FL, Saint Johns County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL

Warnings issued inside it

3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 24, 5:42 PM EDTTornado WarningJAXBaker, Columbia33 min
Apr 24, 6:21 PM EDTTornado WarningJAXColumbia, Hamilton24 min
Apr 24, 6:54 PM EDTSevere Thunderstorm WarningJAXBaker, Columbia36 min

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 9.0 hours before the alert went out and 118 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, Jacksonville, FL at 12:00Z on 2000-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Jacksonville, FL at 12:00Z on 2000-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 163 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1347 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
163 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 24, 7:45 AM EDTTornado WatchSPCBay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 7 more4 hr
Apr 24, 12:00 PM EDTTornado WatchSPCBay, Calhoun, Gadsden, Hamilton, Holmes, Jackson and 7 more5 hr
Apr 24, 1:30 PM EDTTornado WatchSPCColumbia, Nassau6 hr

Nearby

Severe Thunderstorm Watches in Florida, 2000Every severe thunderstorm watch 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.