Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 115, NWS Tallahassee, FL

June 5, 1998Colquitt County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 5, 1998, 7:58 PM EDT for Colquitt County, Georgia. 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
Jun 5, 1998, 7:58 PM EDT (23:58 UTC)
Expired
Jun 5, 1998, 8:45 PM EDT
In force
47 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Colquitt County, GA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 5, 7:00 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 12.0 hours before the alert went out and 101 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, Tallahassee Rgnl, FL at 12:00Z on 1998-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1352 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, Tallahassee Rgnl, FL at 12:00Z on 1998-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.193958Sfc1 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
1352 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
753 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.7
Supercell composite
6.7

Open this sounding in Storm Lab

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 Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 5, 3:15 PM EDT, 4 hours 43 minutes earlier.

Area forecast discussion, Jun 5, 3:15 PM EDT, 4 hours 43 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
315 PM EDT FRI JUN 5 1998

MDLS GENERALLY CONSISTENT WITH ERODING REMAINDER OF FLAT UPR RDG
ACRS GULFMEX/GULF COAST STATES OVR NEXT 24 HRS. BY LATE SATURDAY
AND INTO SUNDAY...FLO BECOMES INCREASINGLY TROFFY OVR SERN STATES
AS NEW MID LVL CLOSED LOW TAKES SHAPE OVR GT LAKES. THIS SHOULD
ALLOW SFC BNDRY ANALYZED AT 18Z FM SRN AR TO ERN KY TO DROP DOWN
THRU CNTRL AL AND CNTRL GA BY SATURDAY EVENING...AND ACRS FCST AREA
BY SUNDAY MORNING. THE MAIN ACTION...THO...CONTINUES TO FIRE ALONG
OUTFLO BNDRYS WELL TO THE S OF SFC CDFNT.

MOST OF FCST AREA SHOULD REMAIN DRY THRU THIS EVENING. HOWEVER...
MCS CURRENTLY MOVG ACRS MS IS OF SOME CONCERN. VIS SATL IMAGERY
SHOWS WELL DEFINED OUTFLO BNDRY LEFT OVER FM MORNING CONVECTION
THAT HAS STALLED IN AN ARC FM CNTRL AL TO CNTRL GA. EXPC MCS TO
RACE EWD ACRS RMNDR OF MS AND INTO AL THRU THIS EVENING...
EVENTUALLY INTERACTING WITH OUTFLO BNDRY TO TRIGGER ADDITIONAL TSRA
IN PARTS OF SE AL AS EARLY AS LATE EVENING. THIS CNVTV ACTIVITY
WOULD THEN MOV ACRS SW GA DURG EARLY MORNING HOURS. WITH THIS
SCENARIO IN MIND...MIGHT WANT TO CONSIDER RAISING PRECIP CHC ACRS
SE AL/SW GA TONITE...WHILE MOST OF THIS ACTIVITY WOULD STAY OUT OF
FL THRU EARLY MORNING HOURS.

ETA BRINGS BEST UPR SUPPORT FOR DEEP CONVECTION ACRS FCST AREA ARND
12Z SATURDAY...SEEN AS VORT CNTR MOVG ALG NERN GULF COAST AND UPR
DIVERGENCE MAXIMA AT 250 MB OVR FCST AREA ASSOCD WITH RIGHT
ENTRANCE REGION OF STRONG UPR JET. CONSIDERING THIS FORCG AND
PREVIOUS OVERNITE SCENARIO...ENVISION ANOTHER OUTFLO BNDRY
REMAINING ALG N FL BORDER WHICH WOULD TRIGGER ADDITIONAL SHRA/TSRA
ACRS FL PART OF FCST AREA...POSSIBLY BEGINNING OVR PNHNDL BY 09Z
SATURDAY OR SO. THIS ACTIVITY WOULD BRING BEST SHOT AT PRECIP ACRS
FL PNHNDL AND BIG BEND THRU MORNING HOURS. AM IN FAVOR OF LIKELY
PRECIP CHC FOR THIS AREA...MAYBE BEGINNING ARND SUNRISE. MIGHT WANT
TO CONSIDER RAISING PRECIP CHC IN WRN FL BIG BEND BEFORE 12Z
SATURDAY.

WITH THIS IN MIND...AM IN FAVOR OF KEEPING TEMPS DOWN IN MID/UPR
80S ON SATURDAY DUE TO CLOUD COVER AND MORNING PRECIP. MDLS ALL MOV
SFC BNDRY S OF FCST AREA BY SUNDAY AFTERNOON...WHICH SHOULD BRING
SOME DRIER AIR IN BY LATE IN THE DAY...ALTHO SUN WILL STILL WARM
TEMPS UP INTO 85 TO 90 RANGE.

MOORE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 7:33 PM EDTSevere Thunderstorm WarningTAEMitchell, Worth47 min
Jun 5, 7:58 PM EDTSevere Thunderstorm WarningTAETift, Turner47 min
Jun 5, 6:43 PM EDTSevere Thunderstorm WarningTAEDale, Henry, Houston47 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.