Alert archive / Georgia / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 119, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at May 8, 1998, 1:47 PM EDT for Jeff Davis County, Georgia. It was in force for 63 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 8, 1998, 1:47 PM EDT (17:47 UTC)
- Expired
- May 8, 1998, 2:50 PM EDT
- In force
- 63 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
County Jeff Davis County, GA
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 8, 1:15 PM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 5.8 hours before the alert went out and 170 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
- 1025 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 608 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 185 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 6.2
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 8, 9:00 AM EDT, 4 hours 47 minutes earlier.
Area forecast discussion, May 8, 9:00 AM EDT, 4 hours 47 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 900 AM EDT FRI MAY 8 1998 PREFRONTAL CONVECTION NOW MVG INTO CNTRL GA CONTS TO SLIP TO THE ESE... STORM TRACKS ARE RAPIDLY EWRD AT 35 KT. STRNG SW FLOW AT SFC TO BECM MORE WRLY THRU THE DAY. ATMOSPHERE TO RMN UNSTABLE W/ CAPE VALUES ABV 3000 (J/KG) TLH. FRNTL SYS LAYS BACK TWRDS THE NW INTO LOW OVR TX MOVG INTO MISSISSIPPI BY 48 HRS. STORMS... LOOK TO MOV INTO NRN PART OF CWA LATE IN THE MRNG HRS. ATL WOULD SUGGEST RAISING POPS OVR NRN PTN OF CWA A CAT. SOME CONCERN W/ TRAIN ECHOS ACRS NRN PTN OF CWA AS THIS LN DOES NOT LOOK TO PROGRESS RAPIDLY. TEMPS TO RISE INTO THE UPR 80S TO NEAR 90 TDY THIS SHLD FUEL THE INSTABILITY\ AND W/ A STRONG SW TO W FLOW. THE CURRENT FL PACKAGE IS ON TRACK TDY. BUT WILL REVISIT ZONES FOR FINAL LOOK TWRDS LATE MRNG HRS. K. KUYPER
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 6:15 PM EDT | Tornado Warning | JAX | Duval, Nassau | 45 min |
| May 8, 1:29 PM EDT | Severe Thunderstorm Warning | JAX | Coffee | 61 min |
| May 8, 1:56 PM EDT | Tornado Warning | JAX | Coffee | 64 min |
| May 8, 2:09 PM EDT | Tornado Warning | JAX | Bacon | 66 min |
| May 8, 2:25 PM EDT | Severe Thunderstorm Warning | JAX | Appling, Wayne | 65 min |
| May 8, 2:30 PM EDT | Tornado Warning | JAX | Ware | 65 min |
| May 8, 2:43 PM EDT | Tornado Warning | JAX | Pierce | 62 min |
| May 8, 2:56 PM EDT | Tornado Warning | JAX | Camden | 64 min |
| May 8, 3:02 PM EDT | Tornado Warning | JAX | Coffee | 63 min |
| May 8, 3:06 PM EDT | Severe Thunderstorm Warning | JAX | Brantley | 64 min |
| May 8, 4:04 PM EDT | Tornado Warning | JAX | Camden | 66 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.