Alert archive / Florida / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 75

March 29, 200113 counties in Florida

The Storm Prediction Center issued this severe thunderstorm watch at Mar 29, 2001, 3:15 PM EST for 13 counties in Florida. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Mar 29, 2001, 3:15 PM EST (20:15 UTC)
Expired
Mar 29, 2001, 9:00 PM EST
In force
6 hr
Issued by
the Storm Prediction Center

Counties Broward County, FL, Charlotte County, FL, Collier County, FL, DeSoto County, FL, Glades County, FL, Hendry County, FL, Highlands County, FL, Lee County, FL, Martin County, FL, Okeechobee County, FL, Palm Beach County, FL, Saint Lucie County, FL, Sarasota County, FL

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Mar 29, 3:45 PM ESTSevere Thunderstorm WarningMLBIndian River, Saint Lucie45 min
Mar 29, 4:30 PM ESTSevere Thunderstorm WarningMLBSaint Lucie45 min
Mar 29, 4:54 PM ESTSevere Thunderstorm WarningMLBMartin66 min
Mar 29, 5:20 PM ESTSevere Thunderstorm WarningMLBSaint Lucie25 min
Mar 29, 6:00 PM ESTSevere Thunderstorm WarningMLBMartin60 min

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 8.3 hours before the alert went out and 122 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, Tampa Bay, FL at 12:00Z on 2001-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 954 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, Tampa Bay, FL at 12:00Z on 2001-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 343 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
954 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
623 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
343 m²/s²
0-3 km storm-relative helicity
401 m²/s²
Significant tornado parameter
1.8
Supercell composite
12.4

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
Mar 29, 9:15 AM ESTSevere Thunderstorm WatchSPCAlachua, Baker, Bradford, Brevard, Citrus, Clay and 25 more5 hr

Nearby

Severe Thunderstorm Watches in Florida, 2001Every severe thunderstorm watch 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.