Alert archive / Georgia / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 271, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 17, 1998, 5:03 PM EDT for Clinch County, Georgia. It was in force for 62 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
- Jul 17, 1998, 5:03 PM EDT (21:03 UTC)
- Expired
- Jul 17, 1998, 6:05 PM EDT
- In force
- 62 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
County Clinch County, GA
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 9.1 hours before the alert went out and 107 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
- 1068 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 708 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 17, 2:40 PM EDT, 2 hours 23 minutes earlier.
Area forecast discussion, Jul 17, 2:40 PM EDT, 2 hours 23 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 240 PM EDT FRI JUL 17 1998 4 KM VIS INDCG TROF AXIS OVR SW GA INTO THE FL PNHDL W/ STORMS BECOMING MORE ACTIVE ALG TROF. MESO LOW OVR NE GA THIS AFTN DVLPG A SW FLOW ACRS THE AREA AS BEST MSTR CONVERGENCE NOTED FM SW GA INTO CNTRL GA. SHWRS AND TSTMS OVR SE GA AND NE FL THIS AFTN A RESULT OF OUTFLOW BNDRS WITH 700 MB FLOW FM THE W. STORM PROGRESSION TO THE EAST/ NORTHEAST WHILE... W/ ACTVTY XPCD TO DISSIPATING AFTR SUNSET. AREAS OF FOG DVLPG OVRNGHT... TEMPS SLIGHTLY ABV GUID. AT SFC RDG OVR S FL MOVS INTO CNTRL FL BY THE END OF THE FCST PD WITH A WEAK TROF CONTG OVR GA. WILL CONT WITH A WET PATTERN THRU THE WEEKEND ALTHOUGH FIRST PART OF NXT WEEK WILL SEE A MORE TYPICAL AFTN PATTERN DVLPG. UPR LVL RDG OUT W BEGINS TO BREAKDOWN WITH RDG MOVG INTO THE SE US BY THE END OF THE FCST PD ALTHOUGH AN AREA OF WEAKNESS WILL PRESIST ALG THE SE US CST. MIA/ATL WOULD SUGGEST W$ORDING FIRST PD SOMETHING LIKE SHWRS TAPERING OFF TOWARDS MIDNIGHT. PRELIM SSI WW 077/088 077/089 07554 JAX WW 075/089 075/089 07553 GNV WW 075/089 074/089 07353 K. KUYPER
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 3:29 PM EDT | Flash Flood Warning | JAX | Suwannee | 3 hr |
| Jul 17, 5:06 PM EDT | Severe Thunderstorm Warning | JAX | Echols | 64 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 1998Every severe thunderstorm warning in 1998
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.