Alert archive / Florida / Tornado Watches in 1997
Tornado Watch 788
The Storm Prediction Center issued this tornado watch at Nov 1, 1997, 10:00 PM EST for 27 counties in Florida. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 1, 1997, 10:00 PM EST (03:00 UTC)
- Expired
- Nov 2, 1997, 4:00 AM EST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 27 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Flagler County, FL, Franklin County, FL, Gadsden County, FL, Gilchrist County, FL, Hamilton County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Levy County, FL, Liberty County, FL, Madison County, FL, Marion County, FL, Nassau County, FL, Putnam County, FL, Saint Johns County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Volusia County, FL, Wakulla County, FL
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 2, 12:38 AM EST | Severe Thunderstorm Warning | MLB | Volusia | 32 min |
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 3.0 hours before the alert went out and 106 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
- 1262 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 583 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 241 m²/s²
- 0-3 km storm-relative helicity
- 385 m²/s²
- Significant tornado parameter
- 2.5
- Supercell composite
- 11.1
The text
As transmitted, in the capitals the NWS used until 2016.
134 WWUS9 KMKC 020233 SEL8 MKC WW 020233 FLZ000-020900- BULLETIN - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 788 STORM PREDICTION CENTER NORMAN OK 933 PM EST SAT NOV 1 1997 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF NORTHERN FLORIDA AND ADJACENT COASTAL WATERS EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1000 PM UNTIL 400 AM EST. TORNADOES...HAIL TO 1 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES SOUTHWEST OF TALAHASSEE FLORIDA TO 40 MILES NORTH NORTHEAST 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...THIS TORNADO WATCH REPLACES TORNADO WATCH NUMBER 786. WATCH NUMBER 786 WILL NOT BE IN EFFECT AFTER 1000 PM EST. CONTINUE...WW 787... DISCUSSION...LINE OF THUNDERSTORMS CONTINUES TO MOVE SOUTHEASTWARD ACROSS NORTHERN FLORIDA. ALTHOUGH THE MAIN THREAT SHOULD BE FROM DAMAGING WIND GUSTS...ISOLATED BOW-ECHO TYPE TORNADOES MAY OCCUR. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 520. MEAN STORM MOTION VECTOR 26035. ...VESCIO 304,0850 303,0804 285,0804 285,0850
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 1, 7:30 PM EST | Tornado Watch | SPC | Nassau | 5 hr |
| Nov 2, 7:30 AM EST | Tornado Watch | SPC | Charlotte, Collier, DeSoto, Glades, Hendry, Highlands and 6 more | 5 hr |
Nearby
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.