Alert archive / Florida / Tornado Watches in 2000
Tornado Watch 138
The Storm Prediction Center issued this tornado watch at Mar 30, 2000, 5:45 PM EST for 24 counties in Florida; 7 counties in Georgia. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 2000, 5:45 PM EST (22:45 UTC)
- Expired
- Mar 30, 2000, 11:00 PM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 31 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Flagler County, FL, Gadsden County, FL, Gilchrist County, FL, Hamilton County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Levy County, FL, Madison County, FL, Marion County, FL, Putnam County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Volusia County, FL, Wakulla County, FL, Brooks County, GA, Decatur County, GA, Echols County, GA, Grady County, GA, Lowndes County, GA, Seminole County, GA, Thomas County, GA
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 10.8 hours before the alert went out and 129 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.
- Mixed-layer CAPE
- 70 J/kg
- Mixed-layer CIN
- -233 J/kg
- Mixed-layer LCL
- 1195 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 384 m²/s²
- 0-3 km storm-relative helicity
- 471 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
528 WWUS9 KMKC 302248 SEL8 SEL8 MKC WW 302240 FLZ000-GAZ000-CWZ000-310400- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 138 STORM PREDICTION CENTER NORMAN OK 440 PM CST THU MAR 30 2000 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF NORTH FLORIDA EXTREME SOUTHWEST GEORGIA COASTAL WATERS EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 445 PM UNTIL 1000 PM CST. TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 75 STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH OF TALAHASSEE FLORIDA TO 40 MILES SOUTHWEST OF DAYTONA BEACH FLORIDA. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION... CONTINUE...WW 137... DISCUSSION...THREAT FOR SUPERCELLS AND ISOLATED TORNADOES THIS EVENING AS STORMS DEVELOP INVOF WEAK SURFACE WAVE W OF TLH AND MOVE E OR ESEWD. MODERATE UNIDIRECTIONAL SHEAR ALOFT...COUPLED WITH MOIST ELY FLOW JUST N OF STALLING WNW/ESE-ORIENTED OUTFLOW BOUNDARY ALONG WATCH AXIS...WILL FAVOR STORM ROTATION. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 INCH EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 28035. ...CORFIDI 305,0830 284,0801 284,0824 305,0853
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 7:00 PM EST | Tornado Watch | SPC | Bay, Calhoun, Escambia, Franklin, Gadsden, Gulf and 12 more | 6 hr |
| Mar 30, 12:15 PM EST | Tornado Watch | SPC | Baker, Columbia, Duval, Hamilton, Jefferson, Leon and 3 more | 6 hr |
Nearby
Tornado Watches in Florida, 2000Tornado Watches in Georgia, 2000Every tornado 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.