Alert archive / Florida / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 40, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at May 24, 1997, 4:13 PM EDT for Gilchrist County, Florida. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 24, 1997, 4:13 PM EDT (20:13 UTC)
- Expired
- May 24, 1997, 5:00 PM EDT
- In force
- 47 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
County Gilchrist County, FL
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 8.2 hours before the alert went out and 136 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
- 524 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 563 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.6
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 24, 2:30 PM EDT, 1 hour 43 minutes earlier.
Area forecast discussion, May 24, 2:30 PM EDT, 1 hour 43 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 228 PM EDT SAT MAY 24 1997 CRNT...WELL WE'VE GOT THE DAYTIME HTG...LLVL MSTR...INSTABILITY... C-BRZ FNTS FOR SM LIFT AND I JUST GOT BACK INSIDE FROM WATCHING THE BLDG CB'S/TCU PASS BY SO THINGS SHUD POP IN THE NEXT COUPLE OF HOURS. PUT ANOTHER WAY IT'S SUMMER IN THE SOUTH! WILL LEAVE ZFP ALONE THRU BALANCE OF AFTN...BUT WILL WATCH HAMILTON AND SUWANNEE COS CLOSELY AS W CST C-BRZ MOVS INLAND. TNGHT...CNVCTN SHUD DIE OFF ARND 10-11 PM. WITH LOTS OF LLVL MSTR FEEDING IN FRM THE GLF XPCT LOW CLDS TO REMAIN ALL NIGHT. SHOULD BE QUITE HUMID ALSO. WINDS SHUD BE TO HI FOG GENERAL FG FORMATION BUT MIGHT SEE PATCHY LGT FG IN SHELTERED LCNS. TMRW...REPEAT OF THU...FRI...TDA ON TAP. RDG CONTS TO SHIFT OFFSHR WITH FLOW BCMG MORE S TO SW. SHRTWV PASSING THRU SHUD KICK OFF CNVCTN A BIT EARLIER AND MORE WDSPRD THAN TDA...BUT STILL THINK THE W CST C-BRZ WILL BE THE DOMINANT FACTOR.: PRELIM SSI TB 71/79 72/85 05463 JAX TB 73/88 70/90 05363 GNV TB 69/87 69/91 05352 SANDRIK
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 5:44 PM EDT | Severe Thunderstorm Warning | JAX | Ware | 46 min |
| May 24, 6:35 PM EDT | Severe Thunderstorm Warning | JAX | Clinch | 30 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1997Every severe thunderstorm warning in 1997
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.