Alert archive / Georgia / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 121, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at May 8, 1998, 3:06 PM EDT for Brantley County, Georgia. It was in force for 64 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 8, 1998, 3:06 PM EDT (19:06 UTC)
- Expired
- May 8, 1998, 4:10 PM EDT
- In force
- 64 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
County Brantley County, GA
The radar
The Jacksonville radar (KJAX), 84 km from the middle of the area, began a volume at 19:05 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 8, 3:30 PM EDT | Hail 0.75 | Hoboken, GA | |
| May 8, 3:50 PM EDT | Thunderstorm Wind | Hickox, GA | Large trees were blown down. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
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, 7.1 hours before the alert went out and 82 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, 2:22 PM EDT, 44 minutes earlier.
Area forecast discussion, May 8, 2:22 PM EDT, 44 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 222 PM EDT FRI MAY 8 1998 CURRENT WORKING TORNADO ACTIVITY OVER NORTHERN PORTION OF CWA. ATM VERY UNSTABLE... WITH MAIN FOCUS ALONG LINE THAT CUTS THROUGH NORTHERN PORTION OF CWA. RECIEVED A REPORT OF A TORNADO IN COFFEE COUNTY. XPC ACTIVITY TO CONTINUE INTO EARLY EVENING. JOHNSON
In the hours before
Special weather statement, May 8, 2:54 PM EDT, 12 minutes before
AMZ435-450-452-470-472-FLZ020>025-030>033-GAZ132>136-149>154-162> 166-082300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 254 PM EDT FRI MAY 8 1998 ...A TORNADO WATCH IS IN EFFECT UNTIL 700 PM FOR SOUTHEAST GEORGIA AND EXTREME NORTHEAST FLORIDA... A LINE SEVERE THUNDERSTORMS EXTENDING ALONG A DOUGLAS... ALMA... TO JUST SOUTH OF JESUP LINE WILL CONTINUE TO MOVE EAST SOUTHEAST ACROSS SOUTHEAST GEORGIA AT AROUND 30 MPH. THE ATMOSPHERE CONTINUE TO BE VERY UNSTABLE SOUTH OF THE LINE AND THE THREAT OF SEVERE THUNDERSTORMS AND TORNADOES WILL CONTINUE INTO THE EVENING HOURS. TORNADOS CAN AND DO FORM WITH LITTLE WARNING. SKYWARN STORM SPOTTERS SHOULD ACTIVATE CROSS SOUTHEAST GEORGIA. PLEASE RELAY STORM REPORTS TO THE NATIONAL WEATHER SERVICE THROUGH YOUR LOCAL COUNTY EMERGENCY MANAGEMENT AGENCY. JOHNSON
Special weather statement, May 8, 2:54 PM EDT, 12 minutes before
AMZ435-450-452-470-472-FLZ020>025-030>033-GAZ132>136-149>154-162> 166-082300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 254 PM EDT FRI MAY 8 1998 ...A TORNADO WATCH IS IN EFFECT UNTIL 700 PM FOR SOUTHEAST GEORGIA AND EXTREME NORTHEAST FLORIDA... A LINE SEVERE THUNDERSTORMS EXTENDING ALONG A DOUGLAS... ALMA... TO JUST SOUTH OF JESUP LINE WILL CONTINUE TO MOVE EAST SOUTHEAST ACROSS SOUTHEAST GEORGIA AT AROUND 30 MPH. THE ATMOSPHERE CONTINUE TO BE VERY UNSTABLE SOUTH OF THE LINE AND THE THREAT OF SEVERE THUNDERSTORMS AND TORNADOES WILL CONTINUE INTO THE EVENING HOURS. TORNADOS CAN AND DO FORM WITH LITTLE WARNING. SKYWARN STORM SPOTTERS SHOULD ACTIVATE CROSS SOUTHEAST GEORGIA. PLEASE RELAY STORM REPORTS TO THE NATIONAL WEATHER SERVICE THROUGH YOUR LOCAL COUNTY EMERGENCY MANAGEMENT AGENCY. JOHNSON
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, 1:47 PM EDT | Severe Thunderstorm Warning | JAX | Jeff Davis | 63 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, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.