Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 310, NWS Jacksonville, FL

July 31, 1998Wayne County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 31, 1998, 6:11 PM EDT for Wayne County, Georgia. It was in force for 64 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 31, 1998, 6:11 PM EDT (22:11 UTC)
Expired
Jul 31, 1998, 7:15 PM EDT
In force
64 min
Issued by
NWS Jacksonville, FL
Area
Whole counties

County Wayne County, GA

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 10.2 hours before the alert went out and 119 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.

Skew-T log-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 1998-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 500 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 1998-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -41 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
500 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
1175 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-41 m²/s²
0-3 km storm-relative helicity
-21 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

079 
WUUS1 KJAX 312210 RRA
SVRJAX
GAC305-312315-

BULLETIN
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
611 PM EDT FRI JUL 31 1998

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WAYNE COUNTY IN SOUTHEASTERN GEORGIA

* UNTIL 715 PM EDT


* AT 609 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 2 MILES NORTHWEST OF JESUP MOVING SOUTHEAST AT 10
  MPH.

* THIS STORM CAN BE EXPECTED IN THE VICINITY OF...
  JESUP                            BY 620 PM EDT
  DOCTORTOWN                       BY 625 PM EDT
  BROADHURST                       BY 635 PM EDT

DAMAGING WINDS...CLOUD TO GROUND LIGHTNING AND LARGE HAIL ARE LIKELY. GO
INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS.


IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A
STORM APPROACHES.  MOTORISTS SHOULD REMAIN ALERT FOR REDUCED
VISIBILITIES DURING DOWNPOURS OF RAIN.  STREETS MAY FLOOD QUICKLY.

MOHLIN

The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 31, 5:31 PM EDTSevere Thunderstorm WarningJAXAppling44 min
Jul 31, 6:36 PM EDTSevere Thunderstorm WarningJAXAtkinson, Ware49 min
Jul 31, 6:54 PM EDTSevere Thunderstorm WarningJAXPierce51 min
Jul 31, 7:31 PM EDTSevere Thunderstorm WarningJAXBrantley49 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.